/* ===================================
   FiveCross — Global Styles
   =================================== */

:root {
    /* Colors */
    --bg-primary: #0a0a0f;
    --bg-secondary: #111119;
    --bg-card: #16161f;
    --bg-card-hover: #1c1c28;
    --bg-elevated: #1e1e2a;

    --text-primary: #f0f0f5;
    --text-secondary: #9595a8;
    --text-muted: #5a5a6e;

    --accent: #00e5ff;
    --accent-hover: #00c8e0;
    --accent-glow: rgba(0, 229, 255, 0.25);
    --accent-subtle: rgba(0, 229, 255, 0.08);

    --gradient-1: linear-gradient(135deg, #00e5ff, #7c4dff);
    --gradient-2: linear-gradient(135deg, #00e5ff 0%, #00b8d4 50%, #7c4dff 100%);
    --gradient-text: linear-gradient(135deg, #00e5ff, #a78bfa);

    --success: #22c55e;
    --warning: #f59e0b;

    --border: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(255, 255, 255, 0.12);

    /* Spacing */
    --section-padding: 120px;

    /* Radii */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    /* Shadows */
    --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 40px rgba(0, 229, 255, 0.15);

    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

/* ===================================
   Particle Canvas
   =================================== */
#particle-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    opacity: 0.4;
}

/* ===================================
   Container
   =================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===================================
   Navigation
   =================================== */
#navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    background: transparent;
    transition: var(--transition-base);
}

#navbar.scrolled {
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 10px 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.25rem;
    z-index: 10;
}

.nav-logo-img {
    width: 36px;
    height: 36px;
    border-radius: 8px;
}

.nav-logo-text {
    letter-spacing: -0.02em;
}

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

.nav-links {
    display: flex;
    align-items: center;
    gap: 36px;
}

.nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition-fast);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: var(--transition-base);
    border-radius: 1px;
}

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

.nav-links a:hover::after {
    width: 100%;
}

.nav-cta {
    display: inline-flex;
    align-items: center;
    padding: 10px 22px;
    background: var(--accent);
    color: var(--bg-primary);
    font-weight: 600;
    font-size: 0.875rem;
    border-radius: 50px;
    transition: var(--transition-fast);
    white-space: nowrap;
}

.nav-cta:hover {
    background: var(--accent-hover);
    box-shadow: var(--shadow-glow);
    transform: translateY(-1px);
}

/* Mobile Menu */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    z-index: 10;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition-base);
}

.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);
}

.mobile-menu {
    display: none;
    padding: 20px 24px 24px;
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(20px);
}

.mobile-menu.active {
    display: block;
}

.mobile-menu ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 16px;
}

.mobile-menu a {
    display: block;
    padding: 8px 0;
    font-size: 1rem;
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.mobile-menu a:hover {
    color: var(--text-primary);
}

.mobile-cta {
    width: 100%;
    text-align: center;
    justify-content: center;
}

/* ===================================
   Buttons
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    font-size: 0.95rem;
    padding: 14px 28px;
    border-radius: 50px;
    border: none;
    cursor: pointer;
    transition: var(--transition-base);
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient-1);
    color: var(--bg-primary);
    box-shadow: 0 4px 20px rgba(0, 229, 255, 0.25);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 229, 255, 0.35);
}

.btn-primary:active {
    transform: translateY(0);
}

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

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.btn-disabled {
    background: var(--bg-card);
    color: var(--text-muted);
    cursor: not-allowed;
    border: 1px solid var(--border);
}

.btn-lg {
    padding: 16px 32px;
    font-size: 1.05rem;
}

.btn-block {
    width: 100%;
}

/* ===================================
   Hero Section
   =================================== */
#hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 24px 80px;
    max-width: 1200px;
    margin: 0 auto;
    gap: 60px;
}

.hero-glow {
    position: absolute;
    top: 10%;
    left: 20%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 229, 255, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
}

.hero-content {
    flex: 1;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--accent-subtle);
    border: 1px solid rgba(0, 229, 255, 0.15);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--accent);
    margin-bottom: 28px;
    animation: fadeInUp 0.6s ease-out;
}

.badge-dot {
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.5); }
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
    animation: fadeInUp 0.6s ease-out 0.1s both;
}

.gradient-text {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 480px;
    margin-bottom: 36px;
    animation: fadeInUp 0.6s ease-out 0.2s both;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 40px;
    animation: fadeInUp 0.6s ease-out 0.3s both;
}

.hero-compatibility {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    animation: fadeInUp 0.6s ease-out 0.4s both;
}

.compat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.compat-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.compat-tag {
    padding: 4px 12px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border);
    border-radius: 50px;
    font-size: 0.78rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Hero Image */
.hero-image-wrapper {
    flex: 1;
    position: relative;
    z-index: 1;
    animation: fadeInUp 0.8s ease-out 0.3s both;
}

.hero-image-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 120%;
    background: radial-gradient(circle, rgba(0, 229, 255, 0.1) 0%, transparent 60%);
    pointer-events: none;
}

.hero-image {
    width: 100%;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-card), 0 0 60px rgba(0, 229, 255, 0.08);
}

.hero-image-badge {
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
    backdrop-filter: blur(10px);
    white-space: nowrap;
}

.crosshair-icon {
    color: var(--accent);
    font-size: 1.1rem;
}

/* ===================================
   Sections
   =================================== */
.section {
    position: relative;
    z-index: 1;
    padding: var(--section-padding) 0;
}

.section-dark {
    background: var(--bg-secondary);
}

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

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: var(--accent-subtle);
    border: 1px solid rgba(0, 229, 255, 0.12);
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 20px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 16px;
}

.section-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 500px;
    margin: 0 auto;
}

/* ===================================
   Features Grid
   =================================== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    padding: 36px 28px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-1);
    opacity: 0;
    transition: var(--transition-base);
}

.feature-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-card);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    background: var(--accent-subtle);
    border: 1px solid rgba(0, 229, 255, 0.12);
    border-radius: var(--radius-md);
    color: var(--accent);
    margin-bottom: 20px;
}

.feature-title {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
    letter-spacing: -0.01em;
}

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

/* ===================================
   Download Grid
   =================================== */
.download-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    align-items: start;
}

.download-card {
    position: relative;
    padding: 36px 28px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    text-align: center;
    transition: var(--transition-base);
    overflow: hidden;
}

.download-card-featured {
    border-color: rgba(0, 229, 255, 0.2);
    background: linear-gradient(180deg, rgba(0, 229, 255, 0.03) 0%, var(--bg-card) 50%);
}

.download-card-featured:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 40px rgba(0, 229, 255, 0.12);
    border-color: rgba(0, 229, 255, 0.3);
}

.download-card-disabled {
    opacity: 0.6;
}

.download-card-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    padding: 4px 14px;
    background: rgba(0, 229, 255, 0.1);
    border: 1px solid rgba(0, 229, 255, 0.2);
    border-radius: 50px;
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.badge-soon {
    background: rgba(245, 158, 11, 0.1);
    border-color: rgba(245, 158, 11, 0.2);
    color: var(--warning);
}

.download-card-icon {
    color: var(--accent);
    margin-bottom: 20px;
    display: flex;
    justify-content: center;
}

.download-card-disabled .download-card-icon {
    color: var(--text-muted);
}

.download-card-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.download-card-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.5;
}

.download-card-compat {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    margin-bottom: 24px;
}

.compat-chip {
    padding: 4px 12px;
    background: rgba(0, 229, 255, 0.06);
    border: 1px solid rgba(0, 229, 255, 0.1);
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--accent);
}

.compat-chip-muted {
    background: rgba(255, 255, 255, 0.03);
    border-color: var(--border);
    color: var(--text-muted);
}

.download-card-meta {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 24px;
    font-size: 0.78rem;
    color: var(--text-muted);
}

.download-card-meta span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

/* ===================================
   Tutorial
   =================================== */
.tutorial-timeline {
    max-width: 720px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 0;
    position: relative;
}

.tutorial-timeline::before {
    content: '';
    position: absolute;
    left: 28px;
    top: 40px;
    bottom: 40px;
    width: 2px;
    background: linear-gradient(180deg, var(--accent), rgba(124, 77, 255, 0.3));
    border-radius: 2px;
}

.tutorial-step {
    display: flex;
    gap: 28px;
    padding: 32px 0;
    position: relative;
}

.step-number {
    flex-shrink: 0;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    border: 2px solid var(--accent);
    border-radius: 50%;
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--accent);
    font-family: 'JetBrains Mono', monospace;
    z-index: 1;
    box-shadow: 0 0 20px rgba(0, 229, 255, 0.15);
}

.step-content {
    flex: 1;
    padding-top: 6px;
}

.step-icon-wrapper {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    background: var(--accent-subtle);
    border: 1px solid rgba(0, 229, 255, 0.12);
    border-radius: var(--radius-md);
    color: var(--accent);
    margin-bottom: 16px;
}

.step-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.step-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.tutorial-note {
    max-width: 720px;
    margin: 40px auto 0;
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 20px 24px;
    background: var(--accent-subtle);
    border: 1px solid rgba(0, 229, 255, 0.12);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.note-icon {
    flex-shrink: 0;
    color: var(--accent);
    margin-top: 2px;
}

/* ===================================
   Footer
   =================================== */
#footer {
    position: relative;
    z-index: 1;
    padding: 60px 0 30px;
    background: var(--bg-primary);
    border-top: 1px solid var(--border);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.2rem;
    margin-bottom: 12px;
}

.footer-logo-img {
    width: 32px;
    height: 32px;
    border-radius: 6px;
}

.footer-tagline {
    font-size: 0.9rem;
    color: var(--text-muted);
    max-width: 280px;
}

.footer-links h4 {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

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

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

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

.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid var(--border);
    text-align: center;
}

.footer-bottom p {
    font-size: 0.82rem;
    color: var(--text-muted);
}

/* ===================================
   Animations
   =================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

[data-animate] {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

[data-animate].visible {
    opacity: 1;
    transform: translateY(0);
}

.download-card-disabled[data-animate].visible {
    opacity: 0.6;
}

/* ===================================
   Responsive
   =================================== */
@media (max-width: 1024px) {
    #hero {
        flex-direction: column;
        text-align: center;
        padding-top: 140px;
        gap: 48px;
    }

    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-compatibility {
        justify-content: center;
    }

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

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

    .download-card:last-child {
        grid-column: span 2;
        max-width: 400px;
        justify-self: center;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 80px;
    }

    .nav-links,
    .nav-cta:not(.mobile-cta) {
        display: none;
    }

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

    #hero {
        padding-top: 120px;
    }

    .hero-title {
        font-size: 2.2rem;
    }

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

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

    .download-card:last-child {
        grid-column: span 1;
        max-width: none;
    }

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

    .tutorial-timeline::before {
        display: none;
    }

    .step-number {
        width: 44px;
        height: 44px;
        font-size: 1rem;
    }

    .tutorial-step {
        gap: 16px;
        padding: 20px 0;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.9rem;
    }

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

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