/* ==========================================================================
   Hwantastic Games - Hearts Extreme Steam Landing Page Stylesheet
   Design Tokens & Neon Cyberpunk Dark Aesthetic
   ========================================================================== */

:root {
    --bg-dark: #08090d;
    --bg-card: rgba(18, 20, 29, 0.7);
    --bg-card-hover: rgba(26, 29, 43, 0.85);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-border-neon: rgba(255, 42, 117, 0.4);
    
    --neon-pink: #ff2a75;
    --neon-pink-glow: rgba(255, 42, 117, 0.5);
    --neon-cyan: #00f0ff;
    --neon-cyan-glow: rgba(0, 240, 255, 0.5);
    --neon-purple: #9d4edd;
    --steam-color: #171a21;
    --steam-accent: #66c0f4;
    --steam-gradient: linear-gradient(135deg, #171a21 0%, #2a475e 100%);
    --steam-btn-gradient: linear-gradient(90deg, #47bfff 0%, #1a9fff 100%);

    --text-main: #f1f5f9;
    --text-muted: #94a3b8;
    --text-dim: #64748b;

    --font-heading: 'Orbitron', 'Outfit', sans-serif;
    --font-body: 'Outfit', 'Noto Sans KR', sans-serif;
    
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* Background Ambient Lighting */
.bg-glow {
    position: fixed;
    border-radius: 50%;
    filter: blur(140px);
    pointer-events: none;
    z-index: -2;
    opacity: 0.4;
}

.bg-glow-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--neon-pink) 0%, transparent 70%);
    top: -200px;
    left: -100px;
}

.bg-glow-2 {
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, var(--neon-purple) 0%, transparent 70%);
    bottom: -200px;
    right: -100px;
}

.bg-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: -1;
}

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

/* Utility Glassmorphism Class */
.glass-panel {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5);
    transition: var(--transition);
}

.glass-panel:hover {
    border-color: rgba(255, 255, 255, 0.2);
}

/* Typography Helpers */
.neon-text {
    color: var(--neon-pink);
    text-shadow: 0 0 15px var(--neon-pink-glow);
}

.neon-text-cyan {
    color: var(--neon-cyan);
    text-shadow: 0 0 15px var(--neon-cyan-glow);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 0.95rem;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: var(--transition);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.85rem;
}

.btn-lg {
    padding: 16px 32px;
    font-size: 1.05rem;
    border-radius: var(--radius-md);
}

.btn-steam {
    background: var(--steam-btn-gradient);
    color: #fff;
    box-shadow: 0 0 20px rgba(26, 159, 255, 0.4);
}

.btn-steam:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(26, 159, 255, 0.7);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-main);
    border: 1px solid var(--glass-border);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.btn-glass {
    background: rgba(255, 42, 117, 0.15);
    color: #fff;
    border: 1px solid var(--neon-pink);
    box-shadow: 0 0 15px var(--neon-pink-glow);
}

.btn-glass:hover {
    background: var(--neon-pink);
    box-shadow: 0 0 25px var(--neon-pink);
    transform: translateY(-2px);
}

.btn-text {
    background: none;
    border: none;
    color: var(--neon-cyan);
    font-weight: 700;
    font-size: 0.9rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
}

.btn-text:hover {
    color: #fff;
    transform: translateX(4px);
}

.pulse-btn {
    animation: pulseGlow 2s infinite alternate;
}

@keyframes pulseGlow {
    0% { box-shadow: 0 0 15px rgba(26, 159, 255, 0.4); }
    100% { box-shadow: 0 0 30px rgba(26, 159, 255, 0.9); }
}

/* Badge Tag */
.badge-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    border-radius: 20px;
    background: rgba(255, 42, 117, 0.12);
    border: 1px solid rgba(255, 42, 117, 0.3);
    color: var(--neon-pink);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--neon-pink);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--neon-pink);
    animation: blink 1.5s infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

/* Header & Nav */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(8, 9, 13, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
    padding: 16px 0;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.logo-icon {
    font-size: 1.5rem;
    color: var(--neon-pink);
}

.brand-name {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 900;
    letter-spacing: 1px;
    color: var(--text-main);
}

.brand-name .highlight {
    color: var(--neon-cyan);
}

.nav-menu {
    display: flex;
    gap: 32px;
}

.nav-link {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--neon-pink);
}

.header-actions {
    display: flex;
    gap: 12px;
}

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

/* Hero Section */
.hero-section {
    padding: 160px 0 100px 0;
    position: relative;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 3.8rem;
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -1px;
    margin-bottom: 20px;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 36px;
    max-width: 540px;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 24px;
    margin-bottom: 40px;
    background: rgba(255, 255, 255, 0.03);
    padding: 16px 24px;
    border-radius: var(--radius-md);
    border: 1px solid var(--glass-border);
    width: fit-content;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-num {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--neon-cyan);
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-dim);
}

.stat-divider {
    width: 1px;
    height: 36px;
    background: var(--glass-border);
}

.hero-btns {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* Hero Visual Art Card */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
}

.visual-card-wrapper {
    position: relative;
    width: 100%;
    max-width: 480px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.8), 0 0 40px var(--neon-pink-glow);
    border: 2px solid var(--glass-border-neon);
    transform-style: preserve-3d;
    transition: transform 0.1s ease-out;
}

.hero-main-art {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

.floating-badge {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 12px;
    background: rgba(10, 11, 16, 0.85);
    backdrop-filter: blur(12px);
    padding: 12px 18px;
    border-radius: var(--radius-md);
    border: 1px solid var(--glass-border-neon);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
}

.floating-badge i {
    font-size: 1.4rem;
    color: var(--neon-pink);
}

.floating-badge strong {
    display: block;
    font-size: 0.9rem;
}

.floating-badge span {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.badge-1 {
    top: 24px;
    left: -20px;
    animation: floatAnim 4s ease-in-out infinite alternate;
}

.badge-2 {
    bottom: 30px;
    right: -20px;
    animation: floatAnim 4s ease-in-out infinite alternate-reverse;
}

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

/* Section Header */
.section-header {
    margin-bottom: 48px;
}

.section-header.center {
    text-align: center;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.4rem;
    font-weight: 900;
    letter-spacing: 1px;
    margin-bottom: 12px;
}

.section-desc {
    color: var(--text-muted);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* Features Grid */
.about-section {
    padding: 100px 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.feature-card {
    padding: 36px 28px;
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: var(--neon-cyan);
    box-shadow: 0 20px 40px rgba(0, 240, 255, 0.15);
}

.feature-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-sm);
    background: rgba(0, 240, 255, 0.1);
    color: var(--neon-cyan);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin-bottom: 24px;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Decks Section */
.decks-section {
    padding: 100px 0;
}

.deck-tabs {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
    overflow-x: auto;
    padding-bottom: 8px;
}

.deck-tab-btn {
    padding: 10px 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: 30px;
    color: var(--text-muted);
    font-family: var(--font-body);
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.deck-tab-btn:hover, .deck-tab-btn.active {
    background: var(--neon-pink);
    color: #fff;
    border-color: var(--neon-pink);
    box-shadow: 0 0 15px var(--neon-pink-glow);
}

.deck-showcase {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    padding: 40px;
    align-items: center;
}

.deck-tag {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(0, 240, 255, 0.1);
    color: var(--neon-cyan);
    font-size: 0.8rem;
    border-radius: 4px;
    font-weight: 700;
    margin-bottom: 12px;
}

.deck-title {
    font-size: 1.8rem;
    margin-bottom: 16px;
}

.deck-desc {
    color: var(--text-muted);
    margin-bottom: 28px;
}

.deck-specs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    background: rgba(0, 0, 0, 0.3);
    padding: 16px;
    border-radius: var(--radius-sm);
}

.spec-item span {
    display: block;
    font-size: 0.75rem;
    color: var(--text-dim);
}

.spec-item strong {
    font-size: 0.95rem;
    color: var(--neon-cyan);
}

.deck-art-img {
    width: 100%;
    border-radius: var(--radius-md);
    border: 1px solid var(--glass-border);
    box-shadow: 0 15px 30px rgba(0,0,0,0.5);
}

/* Steam Section Banner */
.steam-section {
    padding: 60px 0;
}

.steam-banner {
    background: var(--steam-gradient);
    padding: 60px;
    position: relative;
    overflow: hidden;
}

.steam-logo-wrapper {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--steam-accent);
    font-family: var(--font-heading);
    font-weight: 800;
    margin-bottom: 16px;
}

.steam-big-icon {
    font-size: 2.2rem;
}

.steam-banner h2 {
    font-size: 2.2rem;
    margin-bottom: 16px;
}

.steam-banner p {
    color: var(--text-muted);
    font-size: 1.1rem;
    max-width: 680px;
    margin-bottom: 32px;
}

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

/* DevLog Section */
.devlog-section {
    padding: 100px 0;
}

.devlog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.devlog-card {
    padding: 30px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.devlog-card:hover {
    border-color: var(--neon-pink);
    box-shadow: 0 15px 30px rgba(255, 42, 117, 0.15);
}

.devlog-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    margin-bottom: 16px;
}

.devlog-category {
    color: var(--neon-pink);
    font-weight: 700;
}

.devlog-date {
    color: var(--text-dim);
}

.devlog-title {
    font-size: 1.2rem;
    margin-bottom: 12px;
    line-height: 1.4;
}

.devlog-excerpt {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 24px;
}

/* Modal Overlay */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(10px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    width: 90%;
    max-width: 700px;
    max-height: 80vh;
    overflow-y: auto;
    padding: 40px;
    position: relative;
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
}

.modal-close:hover {
    color: var(--neon-pink);
}

/* Support & Contact Section */
.support-section {
    padding: 100px 0;
}

.support-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
    padding: 60px;
}

.support-info h2 {
    font-size: 2.2rem;
    margin: 16px 0 20px 0;
}

.support-info p {
    color: var(--text-muted);
    margin-bottom: 36px;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
    background: rgba(255, 255, 255, 0.03);
    padding: 16px 20px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--glass-border);
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--neon-cyan);
}

.contact-item strong {
    display: block;
    font-size: 0.9rem;
}

.contact-item a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.95rem;
}

.contact-item a:hover {
    color: var(--neon-cyan);
}

/* Contact Form */
.contact-form h3 {
    font-size: 1.4rem;
    margin-bottom: 24px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-muted);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    color: var(--text-main);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--neon-pink);
    box-shadow: 0 0 10px var(--neon-pink-glow);
}

.btn-block {
    width: 100%;
}

/* Footer */
.site-footer {
    background: #050608;
    border-top: 1px solid var(--glass-border);
    padding: 60px 0 0 0;
}

.footer-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 40px;
}

.footer-brand p {
    color: var(--text-dim);
    max-width: 400px;
    margin-top: 12px;
    font-size: 0.9rem;
}

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

.footer-social a {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    text-decoration: none;
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--neon-pink);
    color: #fff;
    border-color: var(--neon-pink);
    transform: translateY(-4px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding: 20px 0;
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-dim);
}

/* Responsive Media Queries */
@media (max-width: 992px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-subtitle {
        margin: 0 auto 36px auto;
    }

    .hero-stats {
        margin: 0 auto 40px auto;
    }

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

    .deck-showcase {
        grid-template-columns: 1fr;
    }

    .support-wrapper {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--bg-dark);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 28px;
        transition: var(--transition);
    }

    .nav-menu.active {
        left: 0;
    }

    .mobile-toggle {
        display: block;
    }

    .hero-title {
        font-size: 2.6rem;
    }

    .steam-banner {
        padding: 30px;
    }
}