:root {
    --bg-dark: #070708;
    --bg-card: #0f0f12;
    --accent-blue: #3b82f6;
    --accent-purple: #8b5cf6;
    --accent-glow: rgba(59, 130, 246, 0.15);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
    --font-main: 'Inter', sans-serif;
    --font-heading: 'Outfit', sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

html,
body {
    overflow-x: hidden;
    width: 100%;
    position: relative;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: var(--font-main);
    line-height: 1.6;
}

/* Premium Background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% 50%, #1a1a2e 0%, var(--bg-dark) 100%);
    z-index: -2;
}

body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('../imgs/premium_abstract_bg.png') no-repeat center center/cover;
    opacity: 0.15;
    z-index: -1;
    filter: saturate(0.5);
}

.cursor-glow {
    position: fixed;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    transform: translate(-50%, -50%);
    z-index: -1;
    transition: width 0.3s, height 0.3s;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

ul {
    list-style: none;
}

/* Navigation */
nav {
    position: fixed;
    top: 1.5rem;
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: 1100px;
    z-index: 1000;
}

.nav-container {
    background: rgba(10, 10, 12, 0.85);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border: 1px solid var(--glass-border);
    padding: 0.75rem 2rem;
    border-radius: 100px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    background: linear-gradient(to right, var(--accent-blue), var(--accent-purple));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    z-index: 1001;
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
}

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

.nav-btn {
    padding: 0.5rem 1.25rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.github-nav {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
}

.github-nav:hover {
    background: var(--glass-border);
}

/* Mobile Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 1001;
    padding: 5px;
}

.bar {
    width: 25px;
    height: 2px;
    background-color: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8rem 2rem 4rem;
    position: relative;
}

.hero-content {
    max-width: 900px;
    text-align: center;
}

.badge {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 50px;
    color: var(--accent-blue);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 2rem;
}

.hero h1 {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 10vw, 5.5rem);
    font-weight: 800;
    line-height: 1;
    margin-bottom: 2rem;
    letter-spacing: -0.03em;
}

.hero p {
    font-size: clamp(1.1rem, 2.5vw, 1.4rem);
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 3rem;
    line-height: 1.6;
}

.hero-btns {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
}

.btn {
    display: inline-block;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    padding: 1.1rem 2.8rem;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1.05rem;
    color: white;
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.2);
}

.btn:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(59, 130, 246, 0.4);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--glass-border);
    box-shadow: none;
}

.btn-outline:hover {
    background: var(--glass-bg);
    border-color: var(--text-secondary);
}

.playstore-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Projects Section */
.projects {
    padding: 10rem 2rem;
    max-width: 1300px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 5rem;
}

.section-header h2 {
    font-family: var(--font-heading);
    font-size: 3rem;
    margin-bottom: 1rem;
}

.section-header p {
    color: var(--text-secondary);
    font-size: 1.2rem;
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(clamp(280px, 100%, 380px), 1fr));
    gap: 3rem;
    width: 100%;
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: 32px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.project-image {
    height: 240px;
    background: #151518;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    position: relative;
    overflow: hidden;
}

.project-image img {
    max-width: 140px;
    filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.3));
    transition: transform 0.5s ease;
}

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

.project-info {
    padding: 2.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.project-info h3 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.project-info p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 1.05rem;
}

.project-link {
    margin-top: auto;
    color: var(--accent-blue);
    font-weight: 600;
    font-size: 1rem;
}

.project-card:hover {
    border-color: rgba(59, 130, 246, 0.3);
    transform: translateY(-12px);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.5);
}

/* GitHub Section */
.github-section {
    padding: 5rem 2rem;
    max-width: 1300px;
    margin: 0 auto;
}

.github-card {
    background: linear-gradient(135deg, #111115 0%, #0a0a0c 100%);
    border: 1px solid var(--glass-border);
    border-radius: 40px;
    padding: 4rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 4rem;
    position: relative;
    overflow: hidden;
}

.github-content h2 {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.github-content p {
    color: var(--text-secondary);
    font-size: 1.2rem;
    margin-bottom: 2.5rem;
}

.github-visual-new {
    display: flex;
    align-items: center;
    justify-content: center;
}

.github-lockup {
    max-width: 100%;
    height: auto;
    filter: drop-shadow(0 0 30px rgba(255, 255, 255, 0.1));
}

/* Footer */
footer {
    border-top: 1px solid var(--glass-border);
    padding: 5rem 2rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
}

.footer-nav {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
    justify-content: center;
}

.footer-nav a {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

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

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content>* {
    animation: fadeInUp 1s cubic-bezier(0.2, 0, 0.2, 1) forwards;
}

.badge {
    animation-delay: 0.1s;
}

.hero h1 {
    animation-delay: 0.2s;
}

.hero p {
    animation-delay: 0.3s;
}

.hero-btns {
    animation-delay: 0.4s;
}

/* Mobile Optimizations */
@media (max-width: 900px) {
    .github-card {
        grid-template-columns: 1fr;
        text-align: center;
        padding: 4rem 2rem;
        gap: 2rem;
    }

    .github-content {
        order: 2;
    }

    .github-visual-new {
        order: 1;
        max-width: 200px;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background: rgba(7, 7, 8, 0.98);
        flex-direction: column;
        justify-content: center;
        padding: 2rem;
        transition: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        backdrop-filter: blur(10px);
        z-index: 1000;
        visibility: hidden;
        /* Prevent interaction and potential layout shift when hidden */
    }

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

    .nav-links li {
        width: 100%;
        text-align: center;
    }

    .nav-links a {
        font-size: 1.5rem;
        display: block;
        padding: 1rem;
    }

    .nav-btn {
        width: fit-content;
        margin: 1rem auto;
    }

    .menu-toggle.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .menu-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }

    .menu-toggle.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .hero {
        padding-top: 6rem;
    }

    .btn {
        width: 100%;
    }

    .github-card {
        padding: 3rem 1.5rem;
    }
}

/* Page Content Base */
.page-content {
    padding-top: 12rem;
}

.about-hero {
    text-align: center;
    max-width: 900px;
    margin: 0 auto 8rem;
    padding: 0 2rem;
}

.vision-section {
    max-width: 1200px;
    margin: 0 auto 10rem;
    padding: 0 2rem;
}

.vision-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
}

.vision-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    padding: 3rem;
    border-radius: 32px;
}

.vision-card h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--accent-blue);
}

.mission-text {
    max-width: 800px;
    margin: 0 auto 10rem;
    padding: 0 2rem;
    text-align: center;
}

.mission-text h2 {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    margin-bottom: 2rem;
}

.mission-text p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.nav-links a.active {
    color: var(--text-primary);
}

.nav-links a.active::after {
    content: '';
    display: block;
    width: 20px;
    height: 2px;
    background: var(--accent-blue);
    margin: 4px auto 0;
    border-radius: 2px;
}