/* ======================================================================
   GAME PORTAL — Premium Dark Theme Stylesheet
   ======================================================================
   Design System:
     - Background:  #0a0a0f (deep void black)
     - Surface:     #12121a (card/panel surface)
     - Border:      rgba(255,255,255,0.06)
     - Text:        #e0e0e8 (primary), #8888a0 (muted)
     - Accent:      linear-gradient(135deg, #00d4ff, #7b2ff7)
     - Fonts:       'Orbitron' (headings), 'Inter' (body)
   ====================================================================== */

/* ---------------------------------------------------------------
   CSS CUSTOM PROPERTIES
   --------------------------------------------------------------- */
:root {
    --bg-deep:         #0a0a0f;
    --bg-surface:      #12121a;
    --bg-surface-alt:  #181825;
    --border:          rgba(255, 255, 255, 0.06);
    --border-hover:    rgba(0, 212, 255, 0.25);
    --text-primary:    #e0e0e8;
    --text-muted:      #8888a0;
    --accent-cyan:     #00d4ff;
    --accent-purple:   #7b2ff7;
    --accent-gradient:  linear-gradient(135deg, #00d4ff, #7b2ff7);
    --glow-cyan:       rgba(0, 212, 255, 0.4);
    --glow-purple:     rgba(123, 47, 247, 0.3);
    --radius-sm:       8px;
    --radius-md:       14px;
    --radius-lg:       20px;
    --font-body:       'Inter', system-ui, -apple-system, sans-serif;
    --font-heading:    'Orbitron', var(--font-body);
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-med:  0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --max-width:       1280px;
}

/* ---------------------------------------------------------------
   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: var(--font-body);
    color: var(--text-primary);
    background: var(--bg-deep);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

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

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

/* ---------------------------------------------------------------
   CUSTOM SCROLLBAR
   --------------------------------------------------------------- */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-deep);
}
::-webkit-scrollbar-thumb {
    background: var(--bg-surface-alt);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-cyan);
}

/* Firefox */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--bg-surface-alt) var(--bg-deep);
}

/* ---------------------------------------------------------------
   UTILITY
   --------------------------------------------------------------- */
.hidden { display: none !important; }
.accent { color: var(--accent-cyan); }
.accent-gradient {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* ---------------------------------------------------------------
   NAVBAR
   --------------------------------------------------------------- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 clamp(1rem, 4vw, 3rem);
    height: 64px;
    background: transparent;
    transition: background var(--transition-med), box-shadow var(--transition-med),
                backdrop-filter var(--transition-med);
}

/* After scrolling, add glassmorphism */
.navbar.scrolled {
    background: rgba(10, 10, 15, 0.75);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 1px 0 var(--border);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: 1px;
}

.nav-brand-icon {
    font-size: 1.4rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

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

.nav-link::after {
    content: "";
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-gradient);
    border-radius: 1px;
    transition: width var(--transition-med);
}

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

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

/* ---------------------------------------------------------------
   HERO SECTION
   --------------------------------------------------------------- */
.hero {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 85vh;
    padding: 120px clamp(1rem, 4vw, 3rem) 80px;
    overflow: hidden;
}

/* Animated grid background */
.hero-grid-bg {
    position: absolute;
    inset: 0;
    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: 60px 60px;
    mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, black 30%, transparent 100%);
    -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, black 30%, transparent 100%);
    animation: grid-drift 20s linear infinite;
}

@keyframes grid-drift {
    0%   { transform: translate(0, 0); }
    100% { transform: translate(60px, 60px); }
}

/* Radial glow behind the hero content */
.hero-glow {
    position: absolute;
    width: 700px;
    height: 700px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--glow-cyan) 0%, var(--glow-purple) 40%, transparent 70%);
    opacity: 0.15;
    filter: blur(80px);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
    animation: glow-pulse 6s ease-in-out infinite alternate;
}

@keyframes glow-pulse {
    0%   { opacity: 0.10; transform: translate(-50%, -50%) scale(0.9); }
    100% { opacity: 0.20; transform: translate(-50%, -50%) scale(1.1); }
}

.hero-content {
    position: relative;
    text-align: center;
    max-width: 720px;
    z-index: 1;
}

.hero-title {
    font-family: var(--font-heading);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 1.25rem;
}

.hero-title-line {
    display: block;
}

.hero-title-line:first-child {
    font-size: clamp(2rem, 5vw, 3.4rem);
    letter-spacing: 1px;
}

.hero-title-line:last-child {
    font-size: clamp(2.2rem, 5.5vw, 3.8rem);
    letter-spacing: 2px;
}

.hero-tagline {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--text-muted);
    max-width: 540px;
    margin: 0 auto 2.5rem;
    line-height: 1.7;
}

/* CTA Button */
.hero-cta {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: 50px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 1px;
    background: var(--accent-gradient);
    color: #fff;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    box-shadow: 0 0 24px var(--glow-cyan);
}

.hero-cta:hover {
    transform: translateY(-2px) scale(1.03);
    box-shadow: 0 0 40px var(--glow-cyan), 0 0 80px var(--glow-purple);
}

.hero-cta.small {
    padding: 10px 24px;
    font-size: 0.85rem;
}

/* ---------------------------------------------------------------
   GAMES SECTION
   --------------------------------------------------------------- */
.games-section {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 60px clamp(1rem, 4vw, 3rem) 100px;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
    letter-spacing: 2px;
    margin-bottom: 0.5rem;
    /* Glowing text effect */
    text-shadow: 0 0 20px var(--glow-cyan), 0 0 60px rgba(0, 212, 255, 0.15);
}

.section-subtitle {
    color: var(--text-muted);
    font-size: 1rem;
}

/* ---------------------------------------------------------------
   LOADING SPINNER
   --------------------------------------------------------------- */
.loader {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    padding: 3rem;
}

.loader-ring {
    width: 48px;
    height: 48px;
    border: 3px solid var(--border);
    border-top-color: var(--accent-cyan);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

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

/* ---------------------------------------------------------------
   EMPTY STATE
   --------------------------------------------------------------- */
.empty-state {
    text-align: center;
    padding: 4rem 1rem;
}

.empty-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.empty-text {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
}

/* ---------------------------------------------------------------
   GAMES GRID
   --------------------------------------------------------------- */
.games-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

/* ---------------------------------------------------------------
   GAME CARD
   --------------------------------------------------------------- */
.game-card {
    display: flex;
    flex-direction: column;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
    transition: transform var(--transition-med),
                box-shadow var(--transition-med),
                border-color var(--transition-med);
    will-change: transform;
    /* Start invisible for stagger animation */
    opacity: 0;
    transform: translateY(24px);
}

/* Stagger-fade entrance animation */
.game-card.fade-in {
    animation: card-enter 0.5s ease forwards;
}

@keyframes card-enter {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.game-card:hover {
    border-color: var(--border-hover);
    box-shadow:
        0 8px 32px rgba(0, 0, 0, 0.4),
        0 0 48px var(--glow-cyan),
        inset 0 0 0 1px rgba(0, 212, 255, 0.08);
}

/* ---- Card Thumbnail ---- */
.card-thumbnail-wrap {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: var(--bg-surface-alt);
}

.card-thumbnail {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-med);
}

.game-card:hover .card-thumbnail {
    transform: scale(1.06);
}

/* Fallback thumbnail (CSS-generated) */
.card-thumbnail-fallback {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background:
        linear-gradient(
            135deg,
            hsl(var(--hue, 180), 60%, 18%) 0%,
            hsl(calc(var(--hue, 180) + 40), 50%, 12%) 100%
        );
}

.fallback-initials {
    font-family: var(--font-heading);
    font-size: 2.4rem;
    font-weight: 700;
    letter-spacing: 4px;
    color: rgba(255, 255, 255, 0.6);
    text-shadow: 0 0 30px hsla(var(--hue, 180), 80%, 60%, 0.4);
}

/* Spotlight overlay that follows the cursor */
.card-overlay {
    position: absolute;
    inset: 0;
    pointer-events: none;
    transition: background var(--transition-fast);
}

/* Play icon centered on thumbnail */
.card-play-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.7);
    font-size: 2rem;
    color: #fff;
    background: rgba(0, 0, 0, 0.5);
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-med), transform var(--transition-med);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255,255,255,0.15);
}

.game-card:hover .card-play-icon {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

/* ---- Card Body ---- */
.card-body {
    padding: 1.25rem 1.5rem 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.card-title {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}

.card-desc {
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.6;
    flex: 1;
    /* Clamp to 3 lines */
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-date {
    display: block;
    margin-top: 0.75rem;
    font-size: 0.78rem;
    color: var(--text-muted);
    opacity: 0.7;
}

/* ---------------------------------------------------------------
   FOOTER
   --------------------------------------------------------------- */
.footer {
    border-top: 1px solid var(--border);
    padding: 3rem clamp(1rem, 4vw, 3rem);
}

.footer-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-brand {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 1px;
}

.footer-copy,
.footer-tech {
    font-size: 0.82rem;
    color: var(--text-muted);
}

/* ---------------------------------------------------------------
   PLAY PAGE — STYLES
   --------------------------------------------------------------- */
.play-topbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.25rem;
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
}

.play-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--text-muted);
    transition: color var(--transition-fast);
}

.play-back:hover {
    color: var(--accent-cyan);
}

.play-title {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 1px;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    white-space: nowrap;
}

.play-controls {
    display: flex;
    gap: 8px;
}

.play-btn {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 6px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    cursor: pointer;
    transition: background var(--transition-fast), border-color var(--transition-fast);
}

.play-btn:hover {
    background: rgba(0, 212, 255, 0.1);
    border-color: var(--border-hover);
}

.play-container {
    position: fixed;
    top: 52px;
    left: 0;
    right: 0;
    bottom: 0;
    background: #000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.play-container iframe {
    width: 100%;
    height: 100%;
    border: none;
}

.play-error {
    text-align: center;
    padding: 3rem;
}

.play-error h2 {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    margin-bottom: 1rem;
}

.play-error p {
    color: var(--text-muted);
    margin-bottom: 2rem;
}

/* Fullscreen: hide the topbar */
.fullscreen-active .play-topbar {
    display: none;
}

.fullscreen-active .play-container {
    top: 0;
}

/* ---------------------------------------------------------------
   UPLOAD PAGE — STYLES
   --------------------------------------------------------------- */
.upload-page {
    max-width: 560px;
    margin: 0 auto;
    padding: 120px clamp(1rem, 4vw, 2rem) 80px;
}

.upload-page h1 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 2px;
    margin-bottom: 0.5rem;
    text-shadow: 0 0 20px var(--glow-cyan);
}

.upload-page .subtitle {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 2.5rem;
}

/* Form elements */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
    letter-spacing: 0.5px;
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    outline: none;
}

.form-input:focus,
.form-textarea:focus {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 80px;
}

/* File input drop zone */
.file-drop-zone {
    position: relative;
    padding: 2.5rem 1.5rem;
    border: 2px dashed var(--border);
    border-radius: var(--radius-md);
    text-align: center;
    cursor: pointer;
    transition: border-color var(--transition-fast), background var(--transition-fast);
}

.file-drop-zone:hover,
.file-drop-zone.dragover {
    border-color: var(--accent-cyan);
    background: rgba(0, 212, 255, 0.03);
}

.file-drop-zone input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

.file-drop-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

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

.file-drop-text strong {
    color: var(--accent-cyan);
}

.file-name {
    margin-top: 0.5rem;
    font-size: 0.85rem;
    color: var(--accent-cyan);
}

/* Progress bar */
.progress-wrap {
    margin-top: 1.5rem;
    display: none;
}

.progress-wrap.visible {
    display: block;
}

.progress-bar-bg {
    width: 100%;
    height: 6px;
    background: var(--bg-surface-alt);
    border-radius: 3px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    width: 0%;
    background: var(--accent-gradient);
    border-radius: 3px;
    transition: width 0.3s ease;
}

.progress-text {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-top: 0.4rem;
    text-align: right;
}

/* Submit button */
.btn-submit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 14px 24px;
    border: none;
    border-radius: var(--radius-sm);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 1px;
    color: #fff;
    background: var(--accent-gradient);
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast);
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.15);
}

.btn-submit:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 0 36px var(--glow-cyan);
}

.btn-submit:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Status message */
.upload-status {
    margin-top: 1.5rem;
    padding: 14px 18px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    display: none;
}

.upload-status.visible {
    display: block;
}

.upload-status.success {
    background: rgba(0, 212, 255, 0.08);
    border: 1px solid rgba(0, 212, 255, 0.2);
    color: var(--accent-cyan);
}

.upload-status.error {
    background: rgba(255, 80, 80, 0.08);
    border: 1px solid rgba(255, 80, 80, 0.2);
    color: #ff5050;
}

/* ---------------------------------------------------------------
   PASSWORD GATE
   --------------------------------------------------------------- */
.password-gate {
    text-align: center;
}

.password-gate .form-input {
    max-width: 320px;
    margin: 0 auto 1rem;
    text-align: center;
}

.password-gate .btn-submit {
    max-width: 320px;
    margin: 0 auto;
}

/* ---------------------------------------------------------------
   RESPONSIVE
   --------------------------------------------------------------- */
@media (max-width: 768px) {
    .games-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .hero {
        min-height: 70vh;
        padding-top: 100px;
    }

    .play-title {
        display: none; /* too narrow to show centered title on mobile */
    }
}

@media (max-width: 480px) {
    .nav-links {
        gap: 1rem;
    }

    .games-section {
        padding: 40px 1rem 60px;
    }
}