/* ================================================================
   QUANTUM TASKS AI - GLASSMORPHISM THEME 2025
   Modern, Elegant Design with Glass Effects
   ================================================================ */

/* ===== CSS VARIABLES ===== */
:root {
    /* Colors - Modern 2025 Palette */
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --accent: #8b5cf6;
    --accent-dark: #7c3aed;

    /* Glass Effects - Dark Theme */
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);

    /* Background - Dark Theme */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-dark: #050508;

    /* Text Colors - Dark Theme */
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-light: #94a3b8;

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

    /* Border Radius */
    --radius-sm: 12px;
    --radius-md: 20px;
    --radius-lg: 28px;
    --radius-xl: 36px;

    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-size: 14px;
    font-weight: 400;
}

/* ===== ANIMATED BACKGROUND - DARK ===== */
.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    background: linear-gradient(135deg, #0a0a0f 0%, #12121a 50%, #1a1a2e 100%);
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.3;
    animation: float 20s infinite ease-in-out;
}

.orb-1 {
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.4) 0%, transparent 70%);
    top: -300px;
    right: -250px;
    animation-delay: 0s;
}

.orb-2 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.35) 0%, transparent 70%);
    bottom: -200px;
    left: -200px;
    animation-delay: 7s;
}

.orb-3 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(168, 85, 247, 0.3) 0%, transparent 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: 14s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(100px, -100px) scale(1.1); }
    66% { transform: translate(-100px, 100px) scale(0.9); }
}

/* ===== HEADER - LIGHT ===== */
.glass-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 2px 16px rgba(0, 0, 0, 0.1);
    padding: 1rem 0;
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo-img {
    height: 45px;
    width: auto;
}

.header-nav {
    display: none;
}

.nav-link {
    display: none;
}

.mobile-nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-primary);
    cursor: pointer;
    padding: 0.5rem;
}

/* ===== HERO SECTION ===== */
.hero-glass {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6rem 2rem 4rem;
    position: relative;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.floating-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.4rem;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 50px;
    color: var(--primary-light);
    font-weight: 500;
    font-size: 0.8rem;
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.2);
    margin-bottom: 2rem;
    animation: floatBadge 3s ease-in-out infinite;
}

.floating-badge i {
    color: var(--accent);
}

@keyframes floatBadge {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.hero-title {
    font-size: clamp(2.5rem, 7vw, 4.5rem);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin-bottom: 1.25rem;
}

.gradient-text {
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a855f7 100%);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientFlow 6s ease infinite;
}

@keyframes gradientFlow {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.hero-subtitle {
    color: var(--text-primary);
    font-weight: 600;
}

.hero-description {
    font-size: clamp(0.95rem, 2vw, 1.1rem);
    color: var(--text-secondary);
    max-width: 720px;
    margin: 0 auto 2.5rem;
    line-height: 1.65;
    font-weight: 400;
}

/* ===== STATS CARDS ===== */
.stats-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto;
}

.stat-glass-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: 2.5rem 1.5rem;
    text-align: center;
    box-shadow: var(--glass-shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.stat-glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transform: scaleX(0);
    transition: var(--transition);
}

.stat-glass-card:hover::before {
    transform: scaleX(1);
}

.stat-glass-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 12px 48px rgba(99, 102, 241, 0.2);
    border-color: rgba(99, 102, 241, 0.3);
}

.stat-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.3);
}

.stat-number {
    font-size: 2.25rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
}

.stat-label {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.85rem;
}

/* ===== DEMOS SECTION ===== */
.demos-section {
    padding: var(--space-3xl) 2rem;
    position: relative;
}

.section-container {
    max-width: 1400px;
    margin: 0 auto;
}

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

.section-title {
    font-size: clamp(2rem, 4.5vw, 3rem);
    font-weight: 700;
    margin-bottom: 0.875rem;
    letter-spacing: -0.015em;
}

.section-subtitle {
    font-size: clamp(0.95rem, 2vw, 1.1rem);
    color: var(--text-secondary);
    max-width: 680px;
    margin: 0 auto;
    font-weight: 400;
}

.demos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: 2.5rem;
}

/* ===== DEMO GLASS CARDS ===== */
.demo-glass-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: var(--glass-shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.demo-glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    opacity: 0;
    transition: var(--transition);
}

.demo-glass-card:hover::before {
    opacity: 1;
}

.demo-glass-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 16px 56px rgba(99, 102, 241, 0.2);
    border-color: rgba(99, 102, 241, 0.3);
}

.demo-icon-wrapper {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.2rem;
    color: white;
    margin-bottom: 1.5rem;
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.3);
}

.demo-title {
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.875rem;
    letter-spacing: -0.01em;
}

.demo-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.25rem;
    flex-grow: 1;
    font-size: 0.9rem;
    font-weight: 400;
}

.demo-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.tag {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 0.875rem;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 50px;
    color: var(--primary);
    font-size: 0.75rem;
    font-weight: 500;
}

.tag i {
    font-size: 0.7rem;
}

.demo-link {
    display: inline-flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.875rem 1.75rem;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
    text-decoration: none;
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition);
    box-shadow: 0 4px 16px rgba(99, 102, 241, 0.3);
    align-self: flex-start;
}

.demo-link:hover {
    transform: translateX(5px);
    box-shadow: 0 6px 24px rgba(99, 102, 241, 0.4);
}

.demo-link i {
    transition: var(--transition);
}

.demo-link:hover i {
    transform: translateX(5px);
}

/* ===== ABOUT SECTION ===== */
.about-section {
    padding: var(--space-3xl) 2rem;
    position: relative;
}

.about-glass-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    padding: 4rem;
    box-shadow: var(--glass-shadow);
    text-align: center;
    max-width: 1100px;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
}

.about-glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(90deg, var(--primary), var(--accent), var(--primary));
    background-size: 200% 100%;
    animation: shimmer 3s linear infinite;
}

@keyframes shimmer {
    0% { background-position: 0% 0%; }
    100% { background-position: 200% 0%; }
}

.about-icon {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: white;
    margin: 0 auto 2rem;
    box-shadow: 0 12px 32px rgba(99, 102, 241, 0.3);
}

.about-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 900;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.about-description {
    font-size: 1.2rem;
    color: var(--text-secondary);
    line-height: 1.8;
    max-width: 800px;
    margin: 0 auto 3rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-md);
    font-weight: 600;
    color: var(--text-primary);
    transition: var(--transition);
}

.feature-item:hover {
    background: rgba(99, 102, 241, 0.08);
    border-color: var(--primary);
    transform: translateY(-4px);
}

.feature-item i {
    font-size: 1.5rem;
    color: var(--primary);
}

/* ===== CONTACT SECTION ===== */
.contact-section {
    padding: var(--space-3xl) 2rem 6rem;
    position: relative;
}

.contact-glass-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    padding: 4rem;
    box-shadow: var(--glass-shadow);
    text-align: center;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 900;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.contact-description {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
}

.contact-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.contact-info-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-md);
    text-align: left;
    transition: var(--transition);
}

.contact-info-item:hover {
    transform: translateY(-6px);
    border-color: var(--primary);
    box-shadow: 0 8px 32px rgba(99, 102, 241, 0.15);
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    flex-shrink: 0;
}

.contact-details h4 {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.contact-details a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: var(--transition);
}

.contact-details a:hover {
    color: var(--accent);
}

.contact-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== GLASS BUTTONS ===== */
.glass-button {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1.25rem 2.5rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 1.05rem;
    text-decoration: none;
    transition: var(--transition);
    border: 1px solid transparent;
}

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

.glass-button.primary:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 32px rgba(99, 102, 241, 0.4);
}

.glass-button.secondary {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(20px);
    color: var(--primary-light);
    border-color: rgba(99, 102, 241, 0.3);
}

.glass-button.secondary:hover {
    transform: translateY(-4px);
    background: rgba(99, 102, 241, 0.08);
    border-color: var(--primary);
}

/* ===== FOOTER ===== */
.glass-footer {
    background: rgba(30, 27, 75, 0.95);
    backdrop-filter: blur(20px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 4rem 2rem 2rem;
    color: rgba(255, 255, 255, 0.9);
    position: relative;
}

.glass-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary), var(--accent), transparent);
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
}

.footer-main {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-logo-img {
    height: 50px;
    margin-bottom: 1.5rem;
}

.footer-description {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
    margin-bottom: 2rem;
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-contact-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
}

.footer-contact-item:hover {
    color: var(--primary-light);
}

.footer-nav-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: white;
}

.footer-nav-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-nav-link {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
}

.footer-nav-link:hover {
    color: var(--primary-light);
    padding-left: 0.5rem;
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-copyright {
    color: rgba(255, 255, 255, 0.6);
}

.footer-legal {
    display: flex;
    gap: 2rem;
}

.footer-legal-link {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    transition: var(--transition);
}

.footer-legal-link:hover {
    color: var(--primary-light);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1024px) {
    .demos-grid {
        grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
        gap: 2rem;
    }

    .footer-main {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .header-nav {
        display: none;
    }

    .mobile-nav-toggle {
        display: block;
    }

    .hero-glass {
        padding: 4rem 1.5rem 3rem;
    }

    .stats-container {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

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

    .about-glass-card,
    .contact-glass-card {
        padding: 2.5rem 2rem;
    }

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

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

    .footer-main {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .contact-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .glass-button {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .about-glass-card,
    .contact-glass-card {
        padding: 2rem 1.5rem;
    }
}

/* ===== ACCESSIBILITY ===== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ===== FOCUS STYLES ===== */
a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 4px;
    border-radius: 4px;
}