/* ========================================
   KILYPSO GANGWAR - Design System
   ======================================== */

:root {
    /* Colors */
    --color-bg: #0a0a0f;
    --color-bg-secondary: #12121a;
    --color-bg-card: rgba(255, 255, 255, 0.03);
    --color-surface: rgba(255, 255, 255, 0.05);
    --color-border: rgba(255, 255, 255, 0.08);
    --color-text: #e4e4e7;
    --color-text-muted: #71717a;
    --color-text-bright: #ffffff;
    --color-accent: #00E5A0;
    --color-accent-bright: #00FFB2;
    --color-accent-dim: #00B880;
    --color-warning: #f59e0b;
    --color-warning-bg: rgba(245, 158, 11, 0.1);
    --color-warning-border: rgba(245, 158, 11, 0.3);

    /* Gradients */
    --gradient-accent: linear-gradient(135deg, var(--color-accent), var(--color-accent-bright));
    --gradient-bg: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-secondary) 100%);
    --gradient-card-border: linear-gradient(135deg, rgba(0, 229, 160, 0.3), rgba(0, 255, 178, 0.1), rgba(0, 229, 160, 0.3));

    /* Glass */
    --glass-bg: rgba(255, 255, 255, 0.04);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-blur: blur(20px);

    /* Typography */
    --font-body: 'Inter', system-ui, -apple-system, sans-serif;
    --font-display: 'Outfit', 'Inter', system-ui, sans-serif;

    /* Spacing */
    --section-padding: 120px 0;
    --container-width: 1200px;
    --container-padding: 0 24px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

/* ========================================
   Reset & Base
   ======================================== */

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

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

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

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

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: var(--container-padding);
}

/* ========================================
   Animations
   ======================================== */

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

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

@keyframes pulse-glow {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 0.8; }
}

@keyframes gradient-shift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes particle-drift {
    0% { transform: translate(0, 0) scale(1); opacity: 0; }
    10% { opacity: 0.6; }
    90% { opacity: 0.6; }
    100% { transform: translate(var(--drift-x, 100px), var(--drift-y, -200px)) scale(0); opacity: 0; }
}

/* ========================================
   Navbar
   ======================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--glass-border);
}

.navbar-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.navbar-logo {
    display: flex;
    align-items: baseline;
    gap: 8px;
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 1.25rem;
    letter-spacing: 0.05em;
}

.logo-kilypso {
    color: var(--color-text-bright);
}

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

.navbar-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-muted);
    transition: color var(--transition-fast);
    letter-spacing: 0.02em;
}

.nav-link:hover {
    color: var(--color-text-bright);
}

.navbar-social {
    display: flex;
    align-items: center;
    gap: 12px;
}

.social-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    color: var(--color-text-muted);
    transition: all var(--transition-fast);
    background: var(--glass-bg);
    border: 1px solid transparent;
}

.social-icon:hover {
    color: var(--color-accent);
    border-color: rgba(0, 229, 160, 0.3);
    background: rgba(0, 229, 160, 0.1);
}

/* ========================================
   Hero
   ======================================== */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(0, 229, 160, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 50%, rgba(0, 255, 178, 0.05) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 0%, rgba(0, 229, 160, 0.03) 0%, transparent 70%),
        var(--color-bg);
}

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

.hero-particles::before,
.hero-particles::after {
    content: '';
    position: absolute;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--color-accent);
    opacity: 0;
}

.hero-particles::before {
    top: 30%;
    left: 20%;
    --drift-x: 80px;
    --drift-y: -180px;
    animation: particle-drift 8s infinite 0s;
}

.hero-particles::after {
    top: 60%;
    right: 25%;
    --drift-x: -60px;
    --drift-y: -220px;
    animation: particle-drift 10s infinite 3s;
}

.hero-content {
    position: relative;
    text-align: center;
    max-width: 800px;
    padding: 0 24px;
}

.hero-badge {
    display: inline-block;
    padding: 8px 20px;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    color: var(--color-accent);
    background: rgba(0, 229, 160, 0.1);
    border: 1px solid rgba(0, 229, 160, 0.2);
    margin-bottom: 32px;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 900;
    line-height: 1;
    margin-bottom: 24px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.title-kilypso {
    color: var(--color-text-bright);
    text-shadow: 0 0 60px rgba(255, 255, 255, 0.1);
}

.title-gangwar {
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-bright), var(--color-accent));
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradient-shift 4s ease infinite;
    filter: drop-shadow(0 0 40px rgba(0, 229, 160, 0.3));
}

.hero-tagline {
    font-family: var(--font-display);
    font-size: clamp(1rem, 2.5vw, 1.35rem);
    font-weight: 600;
    letter-spacing: 0.2em;
    color: var(--color-text-muted);
    margin-bottom: 20px;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    max-width: 560px;
    margin: 0 auto 40px;
    line-height: 1.7;
}

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

/* ========================================
   Buttons
   ======================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    border-radius: var(--radius-md);
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--gradient-accent);
    color: var(--color-bg);
    box-shadow: 0 0 30px rgba(0, 229, 160, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 50px rgba(0, 229, 160, 0.35);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border);
    backdrop-filter: var(--glass-blur);
}

.btn-secondary:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    background: rgba(0, 229, 160, 0.05);
    transform: translateY(-2px);
}

.btn-large {
    padding: 18px 42px;
    font-size: 1rem;
}

/* ========================================
   Sections
   ======================================== */

.section {
    padding: var(--section-padding);
    position: relative;
}

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

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 800;
    color: var(--color-text-bright);
    letter-spacing: 0.05em;
    margin-bottom: 16px;
}

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

/* ========================================
   Game Modes
   ======================================== */

.gamemodes {
    background: var(--color-bg-secondary);
}

.gamemodes-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.gamemode-card {
    position: relative;
    padding: 32px 24px;
    border-radius: var(--radius-lg);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
    transition: all var(--transition-base);
    overflow: hidden;
    text-align: center;
}

.gamemode-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-lg);
    padding: 1px;
    background: var(--gradient-card-border);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.gamemode-card:hover {
    transform: translateY(-8px) perspective(1000px) rotateX(2deg);
    background: rgba(255, 255, 255, 0.06);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3), 0 0 40px rgba(0, 229, 160, 0.05);
}

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

.gamemode-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    border-radius: var(--radius-md);
    background: rgba(0, 229, 160, 0.1);
    color: var(--color-accent);
    transition: all var(--transition-base);
}

.gamemode-card:hover .gamemode-icon {
    background: rgba(0, 229, 160, 0.15);
    box-shadow: 0 0 30px rgba(0, 229, 160, 0.15);
}

.gamemode-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 100px;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    background: rgba(0, 229, 160, 0.08);
    border: 1px solid rgba(0, 229, 160, 0.15);
    margin-bottom: 16px;
    text-transform: uppercase;
}

.gamemode-title {
    font-family: var(--font-display);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--color-text-bright);
    margin-bottom: 4px;
}

.gamemode-subtitle {
    font-size: 0.85rem;
    color: var(--color-accent-dim);
    margin-bottom: 12px;
    font-weight: 500;
}

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

/* ========================================
   Territories
   ======================================== */

.territories-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.territory-card {
    position: relative;
    padding: 40px 28px;
    border-radius: var(--radius-lg);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    text-align: center;
    transition: all var(--transition-base);
    overflow: hidden;
}

.territory-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-lg);
    padding: 1px;
    background: var(--gradient-card-border);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.territory-card:hover {
    transform: translateY(-6px);
    background: rgba(255, 255, 255, 0.06);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

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

.territory-icon-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 72px;
    height: 72px;
    margin: 0 auto 24px;
    border-radius: 50%;
    background: rgba(0, 229, 160, 0.08);
    color: var(--color-accent);
    position: relative;
    transition: all var(--transition-base);
}

.territory-icon-wrap::after {
    content: '';
    position: absolute;
    inset: -4px;
    border-radius: 50%;
    border: 2px solid rgba(0, 229, 160, 0.15);
    opacity: 0;
    transition: all var(--transition-base);
}

.territory-card:hover .territory-icon-wrap {
    background: rgba(0, 229, 160, 0.12);
    box-shadow: 0 0 40px rgba(0, 229, 160, 0.1);
}

.territory-card:hover .territory-icon-wrap::after {
    opacity: 1;
    inset: -8px;
}

.territory-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text-bright);
    margin-bottom: 12px;
}

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

/* ========================================
   CTA Section
   ======================================== */

.cta {
    text-align: center;
    background: var(--color-bg-secondary);
    overflow: hidden;
}

.cta-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 229, 160, 0.08) 0%, transparent 70%);
    animation: pulse-glow 4s ease-in-out infinite;
    pointer-events: none;
}

.cta-content {
    position: relative;
}

.cta-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 900;
    color: var(--color-text-bright);
    margin-bottom: 20px;
    letter-spacing: 0.05em;
}

.cta-description {
    font-size: 1.15rem;
    color: var(--color-text-muted);
    max-width: 500px;
    margin: 0 auto 40px;
    line-height: 1.7;
}

/* ========================================
   Rules
   ======================================== */

.rules-warning {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px 24px;
    border-radius: var(--radius-md);
    background: var(--color-warning-bg);
    border: 1px solid var(--color-warning-border);
    color: var(--color-warning);
    margin-bottom: 40px;
    font-size: 0.9rem;
    line-height: 1.6;
}

.rules-warning svg {
    flex-shrink: 0;
    margin-top: 2px;
}

.rules-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-width: 800px;
    margin: 0 auto;
}

.rule-item {
    border-radius: var(--radius-md);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    overflow: hidden;
    transition: all var(--transition-base);
}

.rule-item:hover {
    border-color: rgba(0, 229, 160, 0.2);
}

.rule-item[open] {
    border-color: rgba(0, 229, 160, 0.3);
    background: rgba(255, 255, 255, 0.05);
}

.rule-header {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 24px;
    cursor: pointer;
    list-style: none;
    user-select: none;
    transition: all var(--transition-fast);
}

.rule-header::-webkit-details-marker {
    display: none;
}

.rule-header::marker {
    content: '';
}

.rule-number {
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--color-accent);
    min-width: 28px;
}

.rule-title {
    flex: 1;
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-bright);
}

.rule-chevron {
    color: var(--color-text-muted);
    transition: transform var(--transition-base);
    flex-shrink: 0;
}

.rule-item[open] .rule-chevron {
    transform: rotate(180deg);
}

.rule-content {
    padding: 0 24px 20px;
    padding-left: 68px;
    font-size: 0.9rem;
    color: var(--color-text-muted);
    line-height: 1.7;
    animation: rule-expand 0.3s ease;
}

@keyframes rule-expand {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================
   Footer
   ======================================== */

.footer {
    padding: 48px 0;
    border-top: 1px solid var(--glass-border);
    background: var(--color-bg);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

.footer-logo {
    display: flex;
    align-items: baseline;
    gap: 8px;
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 1.1rem;
    letter-spacing: 0.05em;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.footer-copyright {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

/* ========================================
   Responsive
   ======================================== */

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

@media (max-width: 768px) {
    :root {
        --section-padding: 80px 0;
    }

    .navbar-links {
        display: none;
    }

    .hero-title {
        font-size: clamp(2.5rem, 10vw, 4rem);
    }

    .hero-tagline {
        font-size: 0.9rem;
        letter-spacing: 0.1em;
    }

    .hero-description {
        font-size: 1rem;
    }

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

    .btn {
        width: 100%;
        max-width: 300px;
    }

    .gamemodes-grid,
    .territories-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }

    .rule-content {
        padding-left: 24px;
    }

    .section-header {
        margin-bottom: 48px;
    }
}

@media (max-width: 480px) {
    :root {
        --section-padding: 60px 0;
    }

    .navbar-container {
        height: 60px;
    }

    .navbar-social {
        gap: 8px;
    }

    .social-icon {
        width: 32px;
        height: 32px;
    }
}