/* ============================================================
    Portfolio Template — Glassmorphism Design
    Author: Based on template by MrPrince419
   ============================================================ */

/* ===== CSS Variables ===== */
:root {
    /* Colors — switch these for your brand */
    --color-bg: #0a0a0f;
    --color-bg-secondary: #111118;
    --color-surface: rgba(255, 255, 255, 0.05);
    --color-surface-hover: rgba(255, 255, 255, 0.08);
    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-hover: rgba(255, 255, 255, 0.15);
    --color-text: #e8e8ed;
    --color-text-secondary: #a0a0b0;
    --color-text-muted: #6b6b80;

    /* Accent — a cyan-to-purple gradient */
    --color-accent: #6366f1;
    --color-accent-light: #818cf8;
    --color-gradient-1: #6366f1;
    --color-gradient-2: #8b5cf6;
    --color-gradient-3: #06b6d4;

    /* Glass */
    --glass-bg: rgba(255, 255, 255, 0.04);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-blur: 20px;
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);

    /* Layout */
    --max-width: 1200px;
    --nav-height: 70px;
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;

    /* Typography */
    --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Noto Sans SC', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'SF Mono', 'Cascadia Code', 'Fira Code', monospace;

    /* Transitions */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
    --duration-fast: 150ms;
    --duration-normal: 300ms;
    --duration-slow: 500ms;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--nav-height);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-body);
    font-weight: 400;
    line-height: 1.7;
    overflow-x: hidden;
    min-height: 100vh;
}

/* Background pattern */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 50% -20%, rgba(99, 102, 241, 0.12), transparent),
        radial-gradient(ellipse 60% 50% at 80% 80%, rgba(139, 92, 246, 0.08), transparent),
        radial-gradient(ellipse 50% 50% at 20% 50%, rgba(6, 182, 212, 0.06), transparent);
    pointer-events: none;
    z-index: -1;
}

a {
    color: inherit;
    text-decoration: none;
}

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

ul {
    list-style: none;
}

/* ===== Utility: Glass ===== */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
}

.glass-card {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-md);
    transition:
        transform var(--duration-normal) var(--ease-out),
        box-shadow var(--duration-normal) var(--ease-out),
        border-color var(--duration-normal) var(--ease-out),
        background var(--duration-normal) var(--ease-out);
}

.glass-card:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.12);
    transform: translateY(-4px);
    box-shadow:
        0 20px 60px rgba(0, 0, 0, 0.4),
        0 0 0 1px rgba(255, 255, 255, 0.05) inset;
}

.gradient-text {
    background: linear-gradient(135deg, var(--color-gradient-1), var(--color-gradient-2), var(--color-gradient-3));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--nav-height);
    transition: background var(--duration-normal) var(--ease-out),
                box-shadow var(--duration-normal) var(--ease-out);
}

.navbar.scrolled {
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: -0.02em;
    z-index: 1001;
}

.logo-img {
    width: 32px;
    height: 32px;
    border-radius: 8px;
}

.nav-links {
    display: flex;
    gap: 8px;
}

.nav-link {
    padding: 8px 16px;
    border-radius: 100px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: all var(--duration-fast) var(--ease-out);
    position: relative;
}

.nav-link:hover {
    color: var(--color-text);
    background: rgba(255, 255, 255, 0.05);
}

.nav-link.active {
    color: var(--color-text);
    background: rgba(255, 255, 255, 0.08);
}

/* Mobile menu button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: all var(--duration-normal) var(--ease-out);
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 24px 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: float 20s ease-in-out infinite;
}

.orb-1 {
    width: 500px;
    height: 500px;
    background: var(--color-gradient-1);
    top: -20%;
    right: -10%;
    animation-delay: 0s;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: var(--color-gradient-2);
    bottom: -15%;
    left: -5%;
    animation-delay: -7s;
}

.orb-3 {
    width: 300px;
    height: 300px;
    background: var(--color-gradient-3);
    top: 50%;
    left: 50%;
    animation-delay: -14s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(5%, -5%) scale(1.05); }
    50% { transform: translate(-3%, 3%) scale(0.95); }
    75% { transform: translate(-4%, -2%) scale(1.03); }
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 720px;
}

.hero-badge {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 24px;
    color: var(--color-text-secondary);
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 20px;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.35rem);
    color: var(--color-text-secondary);
    font-weight: 400;
    margin-bottom: 32px;
    line-height: 1.5;
}

.hero-description {
    display: inline-block;
    padding: 16px 24px;
    border-radius: var(--radius-md);
    font-size: 1rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: 40px;
    max-width: 600px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 100px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    transition: all var(--duration-normal) var(--ease-out);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-gradient-1), var(--color-gradient-2));
    color: white;
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(99, 102, 241, 0.45);
}

.btn-glass {
    background: rgba(255, 255, 255, 0.06);
    color: var(--color-text);
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

.btn-glass:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.btn-sm {
    padding: 10px 20px;
    font-size: 0.85rem;
}

/* ===== Section Layout ===== */
.section-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: 16px;
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
}

.section-description {
    color: var(--color-text-secondary);
    font-size: 1.1rem;
    max-width: 560px;
    margin: 0 auto;
}

/* ===== Projects Section ===== */
.projects {
    padding: 100px 0 60px;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.project-card {
    overflow: hidden;
}

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

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

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

.project-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--duration-normal) var(--ease-out);
    backdrop-filter: blur(4px);
}

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

.project-info {
    padding: 24px;
}

.project-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 12px;
}

.tag {
    padding: 4px 12px;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 500;
    background: rgba(99, 102, 241, 0.15);
    color: var(--color-accent-light);
    border: 1px solid rgba(99, 102, 241, 0.2);
}

.project-title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    margin-bottom: 8px;
}

.project-desc {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* ===== About Section ===== */
.about {
    padding: 60px 0 100px;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

.about-text {
    color: var(--color-text-secondary);
    font-size: 1.05rem;
    line-height: 1.8;
    margin: 24px 0 32px;
}

.about-highlights {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.highlight {
    padding: 24px;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.highlight-number {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-accent-light);
}

.highlight-label {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}

.about-skills {
    padding: 32px;
}

.skills-title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 24px;
    letter-spacing: -0.01em;
}

.skills-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.skill-item {}

.skill-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 6px;
    font-size: 0.9rem;
}

.skill-name {
    font-weight: 500;
}

.skill-level {
    color: var(--color-text-muted);
}

.skill-bar {
    height: 6px;
    border-radius: 3px;
    background: rgba(255, 255, 255, 0.06);
    overflow: hidden;
}

.skill-fill {
    height: 100%;
    border-radius: 3px;
    background: linear-gradient(90deg, var(--color-gradient-1), var(--color-gradient-2));
    transition: width 1s var(--ease-out);
}

/* ===== Contact Section ===== */
.contact {
    padding: 100px 0;
}

.contact-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.contact-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 32px 16px;
    gap: 8px;
    cursor: pointer;
}

.contact-icon {
    font-size: 28px;
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: rgba(99, 102, 241, 0.1);
    color: var(--color-accent-light);
}

.contact-card h3 {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
}

.contact-card p {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    word-break: break-all;
}

/* ===== Footer ===== */
.footer {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 32px 0;
}

.footer-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-text {
    color: var(--color-text-muted);
    font-size: 0.85rem;
}

.footer-links {
    display: flex;
    gap: 16px;
}

.footer-links a {
    color: var(--color-text-muted);
    transition: color var(--duration-fast);
}

.footer-links a:hover {
    color: var(--color-text);
}

/* ===== Project Detail Page ===== */
.project-page {
    padding: 120px 24px 80px;
}

.project-hero {
    text-align: center;
    margin-bottom: 64px;
}

.project-hero .section-tag {
    margin-bottom: 20px;
}

.project-hero h1 {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

.project-hero p {
    color: var(--color-text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

.project-meta {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.project-gallery {
    max-width: var(--max-width);
    margin: 0 auto 80px;
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.project-gallery img {
    width: 100%;
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.project-gallery video {
    width: 100%;
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.06);
    outline: none;
}

.project-back {
    text-align: center;
    padding-bottom: 60px;
}

/* ===== Animations ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== 404 Page ===== */
.error-page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 24px;
    gap: 24px;
}

.error-page h1 {
    font-family: var(--font-heading);
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 800;
}

.error-page p {
    color: var(--color-text-secondary);
    font-size: 1.1rem;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .contact-cards {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        flex-direction: column;
        padding: 100px 32px 32px;
        background: rgba(10, 10, 15, 0.95);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-left: 1px solid rgba(255, 255, 255, 0.06);
        gap: 4px;
        transition: right var(--duration-normal) var(--ease-out);
    }

    .nav-links.active {
        right: 0;
    }

    .nav-link {
        padding: 12px 16px;
        font-size: 1rem;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .hero {
        padding: 100px 20px 60px;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .hero-actions .btn {
        width: 100%;
        justify-content: center;
        max-width: 280px;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

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

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

    .footer-container {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
}

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

    .contact-cards {
        grid-template-columns: 1fr;
    }

    .hero-title {
        font-size: clamp(2rem, 8vw, 2.8rem);
    }
}