/* ============================================
   PORTFOLIO - MAIN STYLESHEET
   Modern, Dark Theme Portfolio
   Author: Luigi Portfolio
   ============================================ */

/* ==================== CSS VARIABLES ==================== */
:root {
    /* Colors */
    --color-bg-primary: #0a0a0a;
    --color-bg-secondary: #0f0f0f;
    --color-bg-tertiary: #141414;
    --color-bg-card: #1a1a1a;

    --color-accent: #00d9ff;
    --color-accent-dark: #00b8cc;
    --color-accent-light: #33e0ff;
    --color-accent-rgb: 0, 217, 255;

    --color-text-primary: #ffffff;
    --color-text-secondary: #b0b0b0;
    --color-text-muted: #666666;

    --color-border: #2a2a2a;
    --color-border-light: #333333;

    --color-success: #4ade80;
    --color-warning: #fbbf24;
    --color-error: #f87171;

    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Playfair Display', Georgia, serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    /* Font Sizes */
    --fs-xs: 0.75rem;
    --fs-sm: 0.875rem;
    --fs-base: 1rem;
    --fs-lg: 1.125rem;
    --fs-xl: 1.25rem;
    --fs-2xl: 1.5rem;
    --fs-3xl: 2rem;
    --fs-4xl: 2.5rem;
    --fs-5xl: 3rem;
    --fs-6xl: 4rem;
    --fs-7xl: 5rem;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    --space-5xl: 8rem;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
    --transition-bounce: 350ms cubic-bezier(0.34, 1.56, 0.64, 1);

    /* Z-index */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal-backdrop: 400;
    --z-modal: 500;
    --z-popover: 600;
    --z-tooltip: 700;

    /* Container */
    --container-max: 1200px;
    --container-padding: 1.5rem;

    /* Header */
    --header-height: 80px;
}

/* ==================== RESET & BASE ==================== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
}

body {
    font-family: var(--font-primary);
    font-size: var(--fs-base);
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Hide scrollbar for Chrome, Safari and Opera */
body::-webkit-scrollbar {
    width: 8px;
}

body::-webkit-scrollbar-track {
    background: var(--color-bg-secondary);
}

body::-webkit-scrollbar-thumb {
    background: var(--color-border-light);
    border-radius: var(--radius-full);
}

body::-webkit-scrollbar-thumb:hover {
    background: var(--color-accent);
}

/* Selection */
::selection {
    background: rgba(var(--color-accent-rgb), 0.3);
    color: var(--color-text-primary);
}

/* Links */
a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

/* Images */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Lists */
ul,
ol {
    list-style: none;
}

/* Buttons */
button {
    font-family: inherit;
    font-size: inherit;
    cursor: pointer;
    border: none;
    background: none;
    color: inherit;
}

/* Inputs */
input,
textarea,
select {
    font-family: inherit;
    font-size: inherit;
    color: inherit;
    background: transparent;
    border: none;
    outline: none;
}

/* ==================== UTILITIES ==================== */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.section {
    padding: var(--space-5xl) 0;
    position: relative;
}

.section__header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.section__tag {
    display: inline-block;
    font-size: var(--fs-sm);
    font-weight: 500;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: var(--space-md);
    position: relative;
}

.section__tag::before,
.section__tag::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 30px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-accent));
}

.section__tag::before {
    right: calc(100% + 15px);
    background: linear-gradient(90deg, transparent, var(--color-accent));
}

.section__tag::after {
    left: calc(100% + 15px);
    background: linear-gradient(90deg, var(--color-accent), transparent);
}

.section__title {
    font-family: var(--font-heading);
    font-size: var(--fs-4xl);
    font-weight: 700;
    color: var(--color-text-primary);
    line-height: 1.2;
}

@media (max-width: 768px) {
    .section__title {
        font-size: var(--fs-3xl);
    }

    .section__tag::before,
    .section__tag::after {
        display: none;
    }
}

/* Glass Card */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--glass-shadow);
}

/* Tech Pills */
.tech-pill {
    display: inline-flex;
    align-items: center;
    padding: 0.35rem 0.85rem;
    font-size: var(--fs-xs);
    font-weight: 500;
    color: var(--color-accent);
    background: rgba(var(--color-accent-rgb), 0.1);
    border: 1px solid rgba(var(--color-accent-rgb), 0.2);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.tech-pill:hover {
    background: rgba(var(--color-accent-rgb), 0.2);
    transform: translateY(-1px);
}

.tech-pill--small {
    padding: 0.25rem 0.6rem;
    font-size: 0.7rem;
}

/* ==================== BUTTONS ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 0.875rem 1.75rem;
    font-size: var(--fs-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    cursor: pointer;
    max-width: 100%;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), transparent);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.btn:hover::before {
    opacity: 1;
}

.btn--primary {
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
    color: var(--color-bg-primary);
    box-shadow: 0 4px 20px rgba(var(--color-accent-rgb), 0.3);
}

.btn--primary:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 8px 30px rgba(var(--color-accent-rgb), 0.4);
}

.btn--outline {
    background: transparent;
    color: var(--color-accent);
    border: 2px solid var(--color-accent);
}

.btn--outline:hover {
    background: rgba(var(--color-accent-rgb), 0.1);
    transform: translateY(-2px);
}

.btn--ghost {
    background: transparent;
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
}

.btn--ghost:hover {
    color: var(--color-accent);
    border-color: var(--color-accent);
}

.btn--large {
    padding: 1.125rem 2.25rem;
    font-size: var(--fs-base);
}

.btn--full {
    width: 100%;
}

/* Mobile Button Adjustments */
@media (max-width: 480px) {
    .btn {
        padding: 0.75rem 1.25rem;
        font-size: var(--fs-xs);
        letter-spacing: 0.5px;
    }

    .btn--large {
        padding: 0.875rem 1.5rem;
        font-size: var(--fs-sm);
    }

    .btn i {
        font-size: 0.8em;
    }
}

.btn i {
    font-size: 0.85em;
    transition: transform var(--transition-fast);
}

.btn:hover i {
    transform: translateX(3px);
}

/* ==================== PRELOADER ==================== */
.preloader {
    position: fixed;
    inset: 0;
    background: var(--color-bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.preloader.loaded {
    opacity: 0;
    visibility: hidden;
}

.loader {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-lg);
}

.loader-ring {
    width: 50px;
    height: 50px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.loader-text {
    font-size: var(--fs-sm);
    color: var(--color-text-secondary);
    letter-spacing: 3px;
    text-transform: uppercase;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ==================== HEADER & NAVIGATION ==================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    z-index: var(--z-fixed);
    transition: all var(--transition-base);
}

.header.scrolled {
    background: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.nav__logo {
    font-size: var(--fs-xl);
    font-weight: 700;
    color: var(--color-text-primary);
    letter-spacing: -0.5px;
    transition: color var(--transition-fast);
}

.nav__logo:hover {
    color: var(--color-accent);
}

.logo-text {
    background: linear-gradient(135deg, var(--color-text-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav__menu {
    display: flex;
    align-items: center;
}

.nav__list {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.nav__link {
    font-size: var(--fs-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    padding: var(--space-sm) 0;
    transition: color var(--transition-fast);
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width var(--transition-base);
}

.nav__link:hover,
.nav__link.active {
    color: var(--color-text-primary);
}

.nav__link:hover::after,
.nav__link.active::after {
    width: 100%;
}

.nav__link--cta {
    padding: 0.625rem 1.25rem;
    background: var(--color-accent);
    color: var(--color-bg-primary) !important;
    border-radius: var(--radius-md);
    font-weight: 600;
}

.nav__link--cta::after {
    display: none;
}

.nav__link--cta:hover {
    background: var(--color-accent-light);
    transform: translateY(-2px);
}

.nav__toggle,
.nav__close {
    display: none;
    font-size: var(--fs-xl);
    color: var(--color-text-primary);
    cursor: pointer;
    transition: color var(--transition-fast);
}

.nav__toggle:hover,
.nav__close:hover {
    color: var(--color-accent);
}

/* Mobile Navigation */
@media (max-width: 768px) {
    .nav__menu {
        position: fixed;
        top: 0;
        left: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background: var(--color-bg-secondary);
        padding: var(--space-4xl) var(--space-xl);
        flex-direction: column;
        align-items: flex-start;
        transition: left var(--transition-slow);
        z-index: var(--z-modal);
        border-right: 1px solid var(--color-border);
    }

    .nav__menu.show-menu {
        left: 0;
    }

    .nav__list {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-lg);
        width: 100%;
    }

    .nav__link {
        font-size: var(--fs-lg);
    }

    .nav__close {
        display: block;
        position: absolute;
        top: var(--space-lg);
        right: var(--space-lg);
        font-size: var(--fs-2xl);
    }

    .nav__toggle {
        display: block;
    }
}

/* ==================== HERO SECTION ==================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: var(--header-height);
}

.hero__bg {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.hero__gradient {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(var(--color-accent-rgb), 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(var(--color-accent-rgb), 0.05) 0%, transparent 40%),
        radial-gradient(ellipse at 50% 100%, rgba(var(--color-accent-rgb), 0.03) 0%, transparent 30%);
}

.hero__grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.hero__particles {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.hero__container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
    align-items: center;
    min-height: calc(100vh - var(--header-height));
}

.hero__content {
    max-width: 600px;
}

.hero__greeting {
    display: inline-block;
    font-size: var(--fs-lg);
    color: var(--color-accent);
    font-weight: 500;
    margin-bottom: var(--space-md);
}

.hero__title {
    font-family: var(--font-heading);
    font-size: var(--fs-7xl);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--space-md);
    color: var(--color-text-primary);
}

.hero__title-accent {
    color: var(--color-accent);
}

.hero__subtitle {
    font-size: var(--fs-2xl);
    font-weight: 400;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
}

.hero__description {
    font-size: var(--fs-lg);
    color: var(--color-text-muted);
    margin-bottom: var(--space-2xl);
    max-width: 500px;
}

.hero__buttons {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

/* Hero Code Block */
.hero__visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero__code-block {
    width: 100%;
    max-width: 480px;
    background: var(--color-bg-card);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--color-border);
    box-shadow:
        0 20px 60px rgba(0, 0, 0, 0.4),
        0 0 40px rgba(var(--color-accent-rgb), 0.1);
    transform: perspective(1000px) rotateY(-5deg) rotateX(2deg);
    transition: transform var(--transition-slow);
}

.hero__code-block:hover {
    transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
}

.code-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    background: var(--color-bg-tertiary);
    border-bottom: 1px solid var(--color-border);
}

.code-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.code-dot--red {
    background: #ff5f57;
}

.code-dot--yellow {
    background: #febc2e;
}

.code-dot--green {
    background: #28c840;
}

.code-filename {
    margin-left: auto;
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
    font-family: var(--font-mono);
}

.code-content {
    padding: var(--space-lg);
    font-family: var(--font-mono);
    font-size: var(--fs-sm);
    line-height: 1.8;
    overflow-x: auto;
}

.code-content code {
    display: block;
    white-space: pre;
}

.code-keyword {
    color: #ff79c6;
}

.code-class {
    color: #8be9fd;
}

.code-function {
    color: #50fa7b;
}

.code-string {
    color: #f1fa8c;
}

.code-comment {
    color: #6272a4;
}

/* Hero Scroll Indicator */
.hero__scroll-indicator {
    position: absolute;
    bottom: var(--space-2xl);
    left: 50%;
    transform: translateX(-50%);
}

.scroll-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-text-muted);
    transition: color var(--transition-fast);
}

.scroll-indicator:hover {
    color: var(--color-accent);
}

.scroll-text {
    font-size: var(--fs-xs);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.scroll-icon {
    width: 24px;
    height: 40px;
    border: 2px solid currentColor;
    border-radius: 12px;
    position: relative;
}

.scroll-dot {
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: currentColor;
    border-radius: 2px;
    animation: scrollDown 2s ease-in-out infinite;
}

@keyframes scrollDown {

    0%,
    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(0);
    }

    50% {
        opacity: 1;
        transform: translateX(-50%) translateY(12px);
    }
}

/* Hero Responsive */
@media (max-width: 1024px) {
    .hero__container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero__content {
        max-width: 100%;
    }

    .hero__title {
        font-size: var(--fs-5xl);
    }

    .hero__description {
        max-width: 100%;
    }

    .hero__buttons {
        justify-content: center;
    }

    .hero__visual {
        display: none;
    }
}

@media (max-width: 480px) {
    .hero__title {
        font-size: var(--fs-4xl);
    }

    .hero__subtitle {
        font-size: var(--fs-xl);
    }

    .hero__buttons {
        flex-direction: column;
        width: 100%;
    }

    .hero__buttons .btn {
        width: 100%;
    }
}

/* ==================== ABOUT SECTION ==================== */
.about__content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--space-4xl);
    align-items: center;
}

.about__image-wrapper {
    position: relative;
}

.about__image-container {
    position: relative;
    width: 280px;
    height: 280px;
    margin: 0 auto;
}

.about__image,
.about__image-placeholder {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--color-border);
    position: relative;
    z-index: 2;
}

.about__image-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-card);
    font-size: var(--fs-6xl);
    color: var(--color-text-muted);
}

.about__image-glow {
    position: absolute;
    inset: -20px;
    background: radial-gradient(circle, rgba(var(--color-accent-rgb), 0.2), transparent 70%);
    border-radius: 50%;
    z-index: 1;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.about__image-container:hover .about__image-glow {
    opacity: 1;
}

.about__experience-badge {
    position: absolute;
    bottom: 0;
    right: 0;
    background: var(--color-accent);
    color: var(--color-bg-primary);
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: 0 10px 30px rgba(var(--color-accent-rgb), 0.3);
    z-index: 3;
}

.badge__number {
    display: block;
    font-size: var(--fs-2xl);
    font-weight: 700;
    line-height: 1;
}

.badge__text {
    font-size: var(--fs-xs);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.about__info {
    max-width: 600px;
}

.about__text-container {
    padding: var(--space-2xl);
}

.about__text {
    font-size: var(--fs-lg);
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: var(--space-xl);
}

.about__skills-preview {
    margin-bottom: var(--space-xl);
}

.about__skills-title {
    font-size: var(--fs-sm);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--space-md);
}

.about__skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.skill-tag {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 0.5rem 1rem;
    font-size: var(--fs-sm);
    color: var(--color-text-secondary);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
}

.skill-tag:hover {
    color: var(--color-accent);
    border-color: var(--color-accent);
    background: rgba(var(--color-accent-rgb), 0.1);
}

.skill-tag[data-tooltip]:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%);
    padding: 0.5rem 1rem;
    background: var(--color-bg-card);
    border: 1px solid var(--color-accent);
    border-radius: var(--radius-md);
    font-size: var(--fs-xs);
    color: var(--color-text-primary);
    white-space: nowrap;
    z-index: var(--z-tooltip);
}

.about__cta {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

@media (max-width: 480px) {
    .about__cta {
        flex-direction: column;
        width: 100%;
    }

    .about__cta .btn {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 968px) {
    .about__content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .about__info {
        max-width: 100%;
    }

    .about__cta {
        justify-content: center;
    }
}

/* ==================== TIMELINE SECTION ==================== */
.timeline__content {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.timeline__line {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--color-border);
    transform: translateX(-50%);
}

.timeline__line-progress {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 0;
    background: linear-gradient(180deg, var(--color-accent), var(--color-accent-dark));
    transition: height 0.3s ease;
}

.timeline__item {
    display: flex;
    align-items: flex-start;
    margin-bottom: var(--space-3xl);
    position: relative;
}

.timeline__item--left {
    justify-content: flex-start;
    padding-right: calc(50% + 40px);
}

.timeline__item--right {
    justify-content: flex-end;
    padding-left: calc(50% + 40px);
}

.timeline__dot {
    position: absolute;
    left: 50%;
    top: 0;
    width: 20px;
    height: 20px;
    background: var(--color-bg-primary);
    border: 3px solid var(--dot-color, var(--color-accent));
    border-radius: 50%;
    transform: translateX(-50%);
    z-index: 2;
    transition: all var(--transition-base);
}

.timeline__item:hover .timeline__dot {
    transform: translateX(-50%) scale(1.2);
    box-shadow: 0 0 20px var(--dot-color, var(--color-accent));
}

.timeline__card {
    padding: var(--space-xl);
    max-width: 400px;
}

.timeline__year {
    display: inline-block;
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--color-accent);
    margin-bottom: var(--space-sm);
}

.timeline__title {
    font-size: var(--fs-xl);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-sm);
}

.timeline__description {
    font-size: var(--fs-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

.timeline__tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
}

@media (max-width: 768px) {
    .timeline__line {
        left: 20px;
    }

    .timeline__item--left,
    .timeline__item--right {
        padding-left: 60px;
        padding-right: 0;
        justify-content: flex-start;
    }

    .timeline__dot {
        left: 20px;
    }

    .timeline__card {
        max-width: 100%;
    }
}

/* ==================== PROJECTS SECTION ==================== */
.projects__filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-bottom: var(--space-3xl);
}

.filter-btn {
    padding: 0.625rem 1.25rem;
    font-size: var(--fs-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
    color: var(--color-accent);
    border-color: var(--color-accent);
    background: rgba(var(--color-accent-rgb), 0.1);
}

.filter-btn--small {
    padding: 0.4rem 0.9rem;
    font-size: var(--fs-xs);
}

@media (max-width: 480px) {
    .projects__filters {
        gap: var(--space-xs);
        margin-bottom: var(--space-2xl);
    }

    .filter-btn {
        padding: 0.5rem 0.875rem;
        font-size: var(--fs-xs);
    }

    .filter-btn--small {
        padding: 0.3rem 0.6rem;
    }
}

/* Featured Project */
.projects__featured {
    margin-bottom: var(--space-3xl);
}

.featured-project {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--space-2xl);
    overflow: hidden;
}

.featured-project__image {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-xl);
    aspect-ratio: 16/10;
}

.featured-project__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.featured-project:hover .featured-project__image img {
    transform: scale(1.05);
}

.featured-project__overlay {
    position: absolute;
    top: var(--space-md);
    left: var(--space-md);
}

.featured-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 0.5rem 1rem;
    background: var(--color-accent);
    color: var(--color-bg-primary);
    font-size: var(--fs-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
}

.featured-project__content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: var(--space-xl);
}

.featured-project__category {
    font-size: var(--fs-sm);
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--space-sm);
}

.featured-project__title {
    font-family: var(--font-heading);
    font-size: var(--fs-3xl);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--space-md);
}

.featured-project__description {
    font-size: var(--fs-base);
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-lg);
}

.featured-project__tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-bottom: var(--space-xl);
}

.featured-project__buttons {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

@media (max-width: 968px) {
    .featured-project {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .featured-project__buttons {
        flex-direction: column;
        width: 100%;
    }

    .featured-project__buttons .btn {
        width: 100%;
        justify-content: center;
    }

    .featured-project__title {
        font-size: var(--fs-2xl);
    }

    .featured-project__content {
        padding: var(--space-md);
    }
}

/* Projects Grid */
.projects__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.projects__grid--full {
    grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 1024px) {
    .projects__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .projects__grid {
        grid-template-columns: 1fr;
    }
}

/* Project Card */
.project-card {
    background: var(--color-bg-card);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.project-card:hover {
    transform: translateY(-8px);
    border-color: rgba(var(--color-accent-rgb), 0.3);
    box-shadow:
        0 20px 40px rgba(0, 0, 0, 0.3),
        0 0 30px rgba(var(--color-accent-rgb), 0.1);
}

.project-card__image {
    position: relative;
    aspect-ratio: 16/10;
    overflow: hidden;
}

.project-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.project-card:hover .project-card__image img {
    transform: scale(1.1);
}

.project-card__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(10, 10, 10, 0.9), transparent 60%);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding: var(--space-lg);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.project-card:hover .project-card__overlay {
    opacity: 1;
}

.project-card__actions {
    display: flex;
    gap: var(--space-sm);
}

.action-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-accent);
    color: var(--color-bg-primary);
    border-radius: 50%;
    font-size: var(--fs-base);
    transition: all var(--transition-fast);
    transform: translateY(20px);
    opacity: 0;
}

.project-card:hover .action-btn {
    transform: translateY(0);
    opacity: 1;
}

.project-card:hover .action-btn:nth-child(1) {
    transition-delay: 0ms;
}

.project-card:hover .action-btn:nth-child(2) {
    transition-delay: 50ms;
}

.project-card:hover .action-btn:nth-child(3) {
    transition-delay: 100ms;
}

.action-btn:hover {
    background: var(--color-text-primary);
    transform: scale(1.1);
}

.project-card__badge {
    position: absolute;
    top: var(--space-md);
    left: var(--space-md);
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 0.35rem 0.75rem;
    background: var(--color-accent);
    color: var(--color-bg-primary);
    font-size: var(--fs-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
    z-index: 2;
}

.project-card__content {
    padding: var(--space-lg);
}

.project-card__category {
    font-size: var(--fs-xs);
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--space-xs);
}

.project-card__title {
    font-size: var(--fs-xl);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-sm);
    transition: color var(--transition-fast);
}

.project-card:hover .project-card__title {
    color: var(--color-accent);
}

.project-card__description {
    font-size: var(--fs-sm);
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-md);
}

.project-card__tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
}

.projects__empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--space-4xl);
    color: var(--color-text-muted);
}

.projects__empty i {
    font-size: var(--fs-5xl);
    margin-bottom: var(--space-lg);
    opacity: 0.3;
}

.projects__empty h3 {
    font-size: var(--fs-xl);
    margin-bottom: var(--space-sm);
    color: var(--color-text-secondary);
}

.projects__cta {
    text-align: center;
    margin-top: var(--space-3xl);
}

/* ==================== TESTIMONIALS SECTION ==================== */
.testimonials {
    background: var(--color-bg-secondary);
}

.testimonials__slider {
    max-width: 800px;
    margin: 0 auto;
    overflow: visible;
}

.testimonial-card {
    padding: var(--space-2xl);
    position: relative;
}

.testimonial-card__quote {
    position: absolute;
    top: var(--space-lg);
    left: var(--space-xl);
    font-size: var(--fs-3xl);
    color: var(--color-accent);
    opacity: 0.3;
}

.testimonial-card__text {
    font-size: var(--fs-lg);
    font-style: italic;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: var(--space-xl);
    padding-top: var(--space-xl);
}

.testimonial-card__author {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.testimonial-card__avatar {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--color-accent);
}

.testimonial-card__avatar--placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-accent);
    color: var(--color-bg-primary);
    font-size: var(--fs-xl);
    font-weight: 600;
}

.testimonial-card__name {
    font-size: var(--fs-base);
    font-weight: 600;
    color: var(--color-text-primary);
}

.testimonial-card__role {
    font-size: var(--fs-sm);
    color: var(--color-text-muted);
}

.testimonial-card__project {
    margin-top: var(--space-lg);
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border);
    font-size: var(--fs-sm);
    color: var(--color-text-muted);
}

.testimonial-card__project a {
    color: var(--color-accent);
    margin-left: var(--space-xs);
}

.testimonial-card__project a:hover {
    text-decoration: underline;
}

/* Swiper Pagination */
.swiper-pagination {
    margin-top: var(--space-xl);
    position: relative !important;
}

.swiper-pagination-bullet {
    width: 12px;
    height: 12px;
    background: var(--color-border);
    opacity: 1;
    transition: all var(--transition-fast);
}

.swiper-pagination-bullet-active {
    background: var(--color-accent);
    transform: scale(1.2);
}

/* ==================== SKILLS SECTION ==================== */
.skills__matrix {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-xl);
}

@media (max-width: 768px) {
    .skills__matrix {
        grid-template-columns: 1fr;
    }
}

.skills__category {
    padding: var(--space-xl);
}

.skills__category-title {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--fs-lg);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-lg);
}

.skills__category-title i {
    color: var(--color-accent);
}

.skills__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
}

.skills__grid--soft {
    grid-template-columns: repeat(2, 1fr);
}

@media (max-width: 400px) {

    .skills__grid,
    .skills__grid--soft {
        grid-template-columns: 1fr;
    }
}

.skill-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    padding: var(--space-md);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    cursor: pointer;
    position: relative;
}

.skill-item:hover {
    border-color: var(--color-accent);
    background: rgba(var(--color-accent-rgb), 0.05);
}

.skill-item i {
    font-size: var(--fs-xl);
    color: var(--color-accent);
}

.skill-item__name {
    font-size: var(--fs-sm);
    font-weight: 500;
    color: var(--color-text-primary);
}

.skill-item__level {
    width: 100%;
    height: 4px;
    background: var(--color-border);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.skill-item__progress {
    height: 100%;
    width: var(--progress, 0%);
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
    border-radius: var(--radius-full);
    transition: width 1s ease-out;
}

.skill-item--soft {
    align-items: center;
    text-align: center;
}

.skill-item--soft i {
    font-size: var(--fs-2xl);
    margin-bottom: var(--space-xs);
}

.skill-item[data-tooltip]:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%);
    padding: 0.5rem 1rem;
    background: var(--color-bg-card);
    border: 1px solid var(--color-accent);
    border-radius: var(--radius-md);
    font-size: var(--fs-xs);
    color: var(--color-text-primary);
    white-space: nowrap;
    z-index: var(--z-tooltip);
}

/* ==================== STATS SECTION ==================== */
.stats {
    background: linear-gradient(180deg, var(--color-bg-secondary), var(--color-bg-primary));
}

.stats__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
}

@media (max-width: 968px) {
    .stats__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .stats__grid {
        grid-template-columns: 1fr;
    }
}

.stat-card {
    padding: var(--space-2xl);
    text-align: center;
    transition: all var(--transition-base);
}

.stat-card:hover {
    transform: translateY(-5px);
    border-color: rgba(var(--color-accent-rgb), 0.3);
}

.stat-card__icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(var(--color-accent-rgb), 0.1);
    border-radius: var(--radius-lg);
    font-size: var(--fs-2xl);
    color: var(--color-accent);
}

.stat-card__number {
    font-family: var(--font-heading);
    font-size: var(--fs-5xl);
    font-weight: 700;
    color: var(--color-text-primary);
    line-height: 1;
    margin-bottom: var(--space-sm);
}

.stat-card__number::after {
    content: '+';
    font-size: 0.6em;
    color: var(--color-accent);
}

.stat-card__label {
    font-size: var(--fs-sm);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ==================== PROCESS SECTION ==================== */
.process__steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
    position: relative;
}

.process__connector {
    position: absolute;
    top: 50px;
    left: 15%;
    right: 15%;
    height: 2px;
    pointer-events: none;
}

.process__connector-line {
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg,
            var(--color-accent),
            var(--color-accent-dark),
            var(--color-accent),
            var(--color-accent-dark));
    background-size: 200% 100%;
    animation: gradientFlow 3s ease-in-out infinite;
    opacity: 0.3;
}

@keyframes gradientFlow {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

@media (max-width: 968px) {
    .process__steps {
        grid-template-columns: repeat(2, 1fr);
    }

    .process__connector {
        display: none;
    }
}

@media (max-width: 480px) {
    .process__steps {
        grid-template-columns: 1fr;
    }
}

.process__step {
    text-align: center;
    position: relative;
}

.process__step-number {
    position: absolute;
    top: -10px;
    right: -10px;
    font-size: var(--fs-xs);
    font-weight: 700;
    color: var(--color-accent);
    background: var(--color-bg-primary);
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-accent);
    z-index: 2;
}

.process__step-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--fs-3xl);
    color: var(--color-accent);
    transition: all var(--transition-base);
}

.process__step:hover .process__step-icon {
    transform: scale(1.1);
    border-color: var(--color-accent);
    box-shadow: 0 0 30px rgba(var(--color-accent-rgb), 0.2);
}

.process__step-title {
    font-size: var(--fs-lg);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-sm);
}

.process__step-description {
    font-size: var(--fs-sm);
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-md);
}

.process__step-time {
    font-size: var(--fs-xs);
    color: var(--color-accent);
    font-weight: 500;
}

/* ==================== CONTACT CTA SECTION ==================== */
.contact-cta {
    position: relative;
    overflow: hidden;
}

.contact-cta__bg {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.contact-cta__gradient {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(135deg, rgba(var(--color-accent-rgb), 0.1) 0%, transparent 50%),
        linear-gradient(315deg, rgba(var(--color-accent-rgb), 0.05) 0%, transparent 50%);
}

.contact-cta__container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
    align-items: start;
}

@media (max-width: 968px) {
    .contact-cta__container {
        grid-template-columns: 1fr;
    }
}

.contact-cta__content {
    padding-top: var(--space-xl);
}

.contact-cta__title {
    font-family: var(--font-heading);
    font-size: var(--fs-4xl);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--space-lg);
}

.contact-cta__text {
    font-size: var(--fs-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2xl);
}

.contact-cta__buttons {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

@media (max-width: 480px) {
    .contact-cta__title {
        font-size: var(--fs-3xl);
    }

    .contact-cta__text {
        font-size: var(--fs-base);
    }

    .contact-cta__buttons {
        flex-direction: column;
        width: 100%;
    }

    .contact-cta__buttons .btn {
        width: 100%;
        justify-content: center;
    }
}

/* Contact Form */
.contact-form__wrapper {
    padding: var(--space-2xl);
}

@media (max-width: 480px) {
    .contact-form__wrapper {
        padding: var(--space-lg);
    }
}

.contact-form__title {
    font-size: var(--fs-lg);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-xl);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.form-group {
    position: relative;
}

.form-input {
    width: 100%;
    padding: 1rem 1.25rem;
    font-size: var(--fs-base);
    color: var(--color-text-primary);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.form-input::placeholder {
    color: var(--color-text-muted);
    transition: opacity var(--transition-fast);
}

.form-input:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(var(--color-accent-rgb), 0.1);
}

.form-input:focus::placeholder {
    opacity: 0;
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.form-label {
    position: absolute;
    top: -0.5rem;
    left: 1rem;
    padding: 0 0.25rem;
    font-size: var(--fs-xs);
    color: var(--color-accent);
    background: var(--color-bg-primary);
    opacity: 0;
    transform: translateY(10px);
    transition: all var(--transition-fast);
    pointer-events: none;
}

.form-input:focus+.form-label,
.form-input:not(:placeholder-shown)+.form-label {
    opacity: 1;
    transform: translateY(0);
}

.contact-form__status {
    padding: var(--space-md);
    border-radius: var(--radius-md);
    text-align: center;
    display: none;
}

.contact-form__status.success {
    display: block;
    background: rgba(74, 222, 128, 0.1);
    color: var(--color-success);
    border: 1px solid var(--color-success);
}

.contact-form__status.error {
    display: block;
    background: rgba(248, 113, 113, 0.1);
    color: var(--color-error);
    border: 1px solid var(--color-error);
}

/* ==================== FOOTER ==================== */
.footer {
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    padding: var(--space-4xl) 0 var(--space-xl);
    position: relative;
    overflow: hidden;
}

.footer__glow {
    position: absolute;
    bottom: -50%;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(var(--color-accent-rgb), 0.05), transparent 70%);
    pointer-events: none;
}

.footer__content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--space-4xl);
    margin-bottom: var(--space-3xl);
}

@media (max-width: 768px) {
    .footer__content {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
        text-align: center;
    }
}

.footer__logo {
    font-size: var(--fs-2xl);
    font-weight: 700;
    color: var(--color-text-primary);
    display: inline-block;
    margin-bottom: var(--space-md);
    transition: color var(--transition-fast);
}

.footer__logo:hover {
    color: var(--color-accent);
}

.footer__description {
    font-size: var(--fs-sm);
    color: var(--color-text-secondary);
    max-width: 300px;
}

@media (max-width: 768px) {
    .footer__description {
        max-width: 100%;
    }
}

.footer__title {
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--color-text-primary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--space-lg);
}

.footer__list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer__link {
    font-size: var(--fs-sm);
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
    position: relative;
    display: inline-block;
}

.footer__link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-accent);
    transition: width var(--transition-base);
}

.footer__link:hover {
    color: var(--color-accent);
}

.footer__link:hover::after {
    width: 100%;
}

.footer__social-links {
    display: flex;
    gap: var(--space-md);
}

@media (max-width: 768px) {
    .footer__social-links {
        justify-content: center;
    }
}

.footer__social-link {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 50%;
    font-size: var(--fs-lg);
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.footer__social-link:hover {
    color: var(--color-accent);
    border-color: var(--color-accent);
    transform: translateY(-3px);
    box-shadow: 0 5px 20px rgba(var(--color-accent-rgb), 0.3);
}

.footer__bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-xl);
    border-top: 1px solid var(--color-border);
}

@media (max-width: 768px) {
    .footer__bottom {
        flex-direction: column;
        gap: var(--space-md);
    }
}

.footer__copy {
    font-size: var(--fs-sm);
    color: var(--color-text-muted);
}

.footer__decoration {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.footer__dot {
    width: 6px;
    height: 6px;
    background: var(--color-accent);
    border-radius: 50%;
}

.footer__line {
    width: 50px;
    height: 1px;
    background: linear-gradient(90deg, var(--color-accent), transparent);
}

/* ==================== BACK TO TOP ==================== */
.back-to-top {
    position: fixed;
    bottom: var(--space-xl);
    right: var(--space-xl);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-accent);
    color: var(--color-bg-primary);
    border-radius: 50%;
    font-size: var(--fs-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-base);
    z-index: var(--z-fixed);
    box-shadow: 0 5px 20px rgba(var(--color-accent-rgb), 0.3);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(var(--color-accent-rgb), 0.4);
}

/* ==================== PROJECT DETAIL PAGE ==================== */
.project-hero {
    min-height: 70vh;
    display: flex;
    align-items: flex-end;
    position: relative;
    padding: var(--space-4xl) 0;
}

.project-hero__bg {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.project-hero__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.project-hero__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top,
            var(--color-bg-primary) 0%,
            rgba(10, 10, 10, 0.8) 50%,
            rgba(10, 10, 10, 0.4) 100%);
}

.project-hero__back {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--fs-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2xl);
    transition: color var(--transition-fast);
}

.project-hero__back:hover {
    color: var(--color-accent);
}

.project-hero__category {
    display: inline-block;
    font-size: var(--fs-sm);
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: var(--space-md);
}

.project-hero__title {
    font-family: var(--font-heading);
    font-size: var(--fs-5xl);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--space-lg);
}

.project-hero__description {
    font-size: var(--fs-lg);
    color: var(--color-text-secondary);
    max-width: 600px;
    margin-bottom: var(--space-xl);
}

.project-hero__tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-bottom: var(--space-xl);
}

.project-hero__buttons {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

@media (max-width: 480px) {
    .project-hero__buttons {
        flex-direction: column;
        width: 100%;
    }

    .project-hero__buttons .btn {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .project-hero {
        min-height: 60vh;
    }

    .project-hero__title {
        font-size: var(--fs-3xl);
    }
}

/* Project Content */
.project-content__grid {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: var(--space-3xl);
    align-items: start;
}

@media (max-width: 1024px) {
    .project-content__grid {
        grid-template-columns: 1fr;
    }
}

.content-block {
    padding: var(--space-2xl);
    margin-bottom: var(--space-xl);
}

.content-block__title {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-size: var(--fs-xl);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-lg);
}

.content-block__title i {
    color: var(--color-accent);
}

.content-block__text {
    font-size: var(--fs-base);
    color: var(--color-text-secondary);
    line-height: 1.8;
}

.content-block__text p {
    margin-bottom: var(--space-md);
}

.content-block__text p:last-child {
    margin-bottom: 0;
}

/* Project Gallery */
.project-gallery {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
}

.project-gallery__item {
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 16/10;
}

.project-gallery__item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.project-gallery__item:hover img {
    transform: scale(1.05);
}

/* Project Sidebar */
.project-sidebar {
    padding: var(--space-xl);
    position: sticky;
    top: calc(var(--header-height) + var(--space-xl));
}

.project-sidebar__title {
    font-size: var(--fs-lg);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--color-border);
}

.project-sidebar__item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md) 0;
    border-bottom: 1px solid var(--color-border);
}

.project-sidebar__item--full {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-md);
}

.project-sidebar__label {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--fs-sm);
    color: var(--color-text-muted);
}

.project-sidebar__label i {
    color: var(--color-accent);
}

.project-sidebar__value {
    font-size: var(--fs-sm);
    font-weight: 500;
    color: var(--color-text-primary);
}

.project-sidebar__tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
}

/* Share Buttons */
.project-share {
    padding: var(--space-xl);
    margin-top: var(--space-xl);
}

.project-share__buttons {
    display: flex;
    gap: var(--space-sm);
}

.share-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 50%;
    font-size: var(--fs-base);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.share-btn:hover {
    transform: translateY(-3px);
}

.share-btn--twitter:hover {
    background: #1da1f2;
    border-color: #1da1f2;
    color: white;
}

.share-btn--linkedin:hover {
    background: #0077b5;
    border-color: #0077b5;
    color: white;
}

.share-btn--copy:hover,
.share-btn--copy.copied {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-bg-primary);
}

/* Related Projects */
.related-projects__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

@media (max-width: 768px) {
    .related-projects__grid {
        grid-template-columns: 1fr;
    }
}

/* Project CTA */
.project-cta__content {
    text-align: center;
    padding: var(--space-4xl);
    max-width: 600px;
    margin: 0 auto;
}

.project-cta__title {
    font-family: var(--font-heading);
    font-size: var(--fs-3xl);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--space-md);
}

.project-cta__text {
    font-size: var(--fs-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xl);
}

.project-cta__buttons {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

@media (max-width: 480px) {
    .project-cta__title {
        font-size: var(--fs-2xl);
    }

    .project-cta__text {
        font-size: var(--fs-base);
    }

    .project-cta__buttons {
        flex-direction: column;
        width: 100%;
    }

    .project-cta__buttons .btn {
        width: 100%;
    }

    .project-cta__content {
        padding: var(--space-2xl) var(--space-md);
    }
}

/* ==================== PAGE HEADER ==================== */
.page-header {
    padding: calc(var(--header-height) + var(--space-4xl)) 0 var(--space-3xl);
    background: linear-gradient(180deg, var(--color-bg-secondary), var(--color-bg-primary));
}

.page-header__back {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--fs-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
    transition: color var(--transition-fast);
}

.page-header__back:hover {
    color: var(--color-accent);
}

.page-header__title {
    font-family: var(--font-heading);
    font-size: var(--fs-5xl);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--space-md);
}

.page-header__description {
    font-size: var(--fs-lg);
    color: var(--color-text-secondary);
    max-width: 600px;
}

/* Page Filters */
.page-filters {
    padding: var(--space-xl) 0;
    background: var(--color-bg-primary);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: var(--header-height);
    z-index: var(--z-sticky);
}

.filters-row {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.filters-group {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.filters-label {
    font-size: var(--fs-sm);
    font-weight: 500;
    color: var(--color-text-muted);
    min-width: 80px;
}

.filters-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.filters-buttons--scrollable {
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: var(--space-sm);
    -webkit-overflow-scrolling: touch;
}

.filters-buttons--scrollable::-webkit-scrollbar {
    height: 4px;
}

.filters-buttons--scrollable::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: var(--radius-full);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    margin-top: var(--space-4xl);
}

.pagination__container {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.pagination__btn,
.pagination__number {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--fs-sm);
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.pagination__btn:hover,
.pagination__number:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.pagination__number--active {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-bg-primary);
}

.pagination__numbers {
    display: flex;
    gap: var(--space-xs);
}

/* ==================== 404 PAGE ==================== */
.error-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--space-xl);
}

.error-page__content {
    max-width: 500px;
}

.error-page__code {
    font-family: var(--font-heading);
    font-size: 150px;
    font-weight: 700;
    line-height: 1;
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-lg);
}

.error-page__title {
    font-size: var(--fs-3xl);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-md);
}

.error-page__text {
    font-size: var(--fs-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2xl);
}

/* ==================== ANIMATIONS ==================== */
/* Skill Progress Animation */
@keyframes progressFill {
    from {
        width: 0;
    }

    to {
        width: var(--progress);
    }
}

.skill-item.animated .skill-item__progress {
    animation: progressFill 1s ease-out forwards;
}

/* ==================== RESPONSIVE UTILITIES ==================== */
@media (max-width: 1200px) {
    :root {
        --container-padding: 2rem;
    }
}

@media (max-width: 768px) {
    :root {
        --container-padding: 1.25rem;
    }

    .section {
        padding: var(--space-4xl) 0;
    }
}

@media (max-width: 480px) {
    :root {
        --container-padding: 1rem;
    }

    .section {
        padding: var(--space-3xl) 0;
    }
}

/* Hide on mobile */
@media (max-width: 768px) {
    .hide-mobile {
        display: none !important;
    }
}

/* Hide on desktop */
@media (min-width: 769px) {
    .hide-desktop {
        display: none !important;
    }
}

/* ==================== PRINT STYLES ==================== */
@media print {

    .header,
    .footer,
    .back-to-top,
    .hero__scroll-indicator {
        display: none !important;
    }

    body {
        background: white;
        color: black;
    }

    .section {
        padding: 2rem 0;
    }
}