/* 1930s Silent Movie Rubber Hose Snake Game Stylesheet */

:root {
    --bg-dark: #12100e;
    --bg-paper: #ebdcb9;
    --paper-card: #f5eace;
    --ink-black: #1a1612;
    --film-sepia: #3d3122;
    --gold-brass: #d4a755;
    --gold-glow: rgba(212, 167, 85, 0.4);
    --red-danger: #a83232;
    --frenzy-purple: #7b429e;
    --text-primary: #2b2219;
    --text-muted: #6e5c46;
    --font-heading: 'Special Elite', 'Noto Serif SC', Georgia, serif;
    --font-body: 'Courier Prime', monospace, sans-serif;
    --font-title: 'Outfit', sans-serif;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    user-select: none;
    -webkit-user-select: none;
    touch-action: manipulation;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: var(--font-body);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow-x: hidden;
    position: relative;
}

/* --- Film Effects Overlays --- */
.film-vignette {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: radial-gradient(circle, transparent 55%, rgba(0, 0, 0, 0.85) 100%);
    pointer-events: none;
    z-index: 5;
}

.film-grain {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background-image: radial-gradient(rgba(0, 0, 0, 0.15) 1px, transparent 0);
    background-size: 4px 4px;
    opacity: 0.35;
    pointer-events: none;
    z-index: 6;
    animation: grainFlicker 0.15s infinite alternate;
}

@keyframes grainFlicker {
    0% { transform: translate(0, 0); opacity: 0.3; }
    50% { transform: translate(-1px, 1px); opacity: 0.4; }
    100% { transform: translate(1px, -1px); opacity: 0.35; }
}

.projector-beam-bg {
    position: fixed;
    top: -20%; left: 50%;
    transform: translateX(-50%);
    width: 120vw;
    height: 140vh;
    background: radial-gradient(ellipse at top, rgba(245, 234, 206, 0.08) 0%, transparent 70%);
    pointer-events: none;
    z-index: 2;
}

/* --- Main Layout Container --- */
.app-container {
    width: 100%;
    max-width: 820px;
    padding: 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    z-index: 10;
}

/* --- Header Section --- */
.header {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--paper-card);
    border: 3px double var(--ink-black);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.6), inset 0 0 10px rgba(61, 49, 34, 0.2);
    border-radius: 8px;
    padding: 12px 20px;
    margin-bottom: 16px;
}

.back-home-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--ink-black);
    text-decoration: none;
    font-weight: 700;
    font-size: 0.95rem;
    padding: 6px 12px;
    border: 2px solid var(--ink-black);
    border-radius: 4px;
    background: var(--bg-paper);
    transition: all 0.2s ease;
}

.back-home-btn:hover {
    background: var(--ink-black);
    color: var(--bg-paper);
    transform: translateX(-2px);
}

.title-wrapper {
    text-align: center;
}

.main-title {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    color: var(--ink-black);
    letter-spacing: 1px;
    line-height: 1.1;
}

.sub-highlight {
    display: block;
    font-family: var(--font-title);
    font-size: 0.75rem;
    color: var(--text-muted);
    letter-spacing: 2px;
}

.subtitle {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 2px;
}

.header-actions {
    display: flex;
    gap: 8px;
}

.icon-btn {
    background: var(--bg-paper);
    border: 2px solid var(--ink-black);
    border-radius: 6px;
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    cursor: pointer;
    transition: transform 0.15s ease, background-color 0.2s;
}

.icon-btn:hover {
    background: var(--gold-brass);
    transform: scale(1.08);
}

/* --- Dashboard Section --- */
.dashboard {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    margin-bottom: 16px;
}

.stat-card {
    background: var(--paper-card);
    border: 2px solid var(--ink-black);
    border-radius: 6px;
    padding: 8px 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

.stat-label {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
}

.stat-value {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--ink-black);
}

.energy-card {
    grid-column: span 1;
}

.energy-bar-track {
    width: 100%;
    height: 14px;
    background: #c7b897;
    border: 2px solid var(--ink-black);
    border-radius: 4px;
    margin-top: 6px;
    overflow: hidden;
}

.energy-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, #d4a755 0%, #8b2626 100%);
    transition: width 0.25s ease;
    box-shadow: inset 0 0 5px rgba(255, 255, 255, 0.4);
}

/* --- Canvas Frame & Sprocket Holes --- */
.canvas-outer-frame {
    position: relative;
    background: #090807;
    padding: 18px 40px;
    border: 4px solid var(--gold-brass);
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.8), 0 0 20px var(--gold-glow);
    display: flex;
    justify-content: center;
}

.sprocket-holes-left,
.sprocket-holes-right {
    position: absolute;
    top: 15px;
    bottom: 15px;
    width: 24px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.sprocket-holes-left { left: 10px; }
.sprocket-holes-right { right: 10px; }

.sprocket-holes-left span,
.sprocket-holes-right span {
    width: 18px;
    height: 24px;
    background: var(--paper-card);
    border: 2px solid #000;
    border-radius: 4px;
    box-shadow: inset 0 0 4px rgba(0,0,0,0.5);
}

.canvas-container {
    position: relative;
    width: 100%;
    max-width: 600px;
    aspect-ratio: 1 / 1;
    border: 3px solid var(--ink-black);
    border-radius: 4px;
    overflow: hidden;
    background: var(--bg-paper);
}

#game-canvas {
    width: 100%;
    height: 100%;
    display: block;
}

/* --- Overlays & Notifications --- */
.rewind-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(30, 25, 20, 0.45);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    pointer-events: none;
    z-index: 15;
}

.rewind-badge {
    background: var(--ink-black);
    color: var(--bg-paper);
    border: 3px double var(--gold-brass);
    padding: 10px 24px;
    border-radius: 30px;
    font-family: var(--font-heading);
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    gap: 10px;
    animation: rewindPulse 0.4s infinite alternate;
}

@keyframes rewindPulse {
    0% { transform: scale(1); }
    100% { transform: scale(1.08); }
}

.film-static-lines {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: repeating-linear-gradient(
        0deg,
        rgba(255, 255, 255, 0.1),
        rgba(255, 255, 255, 0.1) 2px,
        transparent 2px,
        transparent 6px
    );
    animation: staticScan 0.1s infinite linear;
}

@keyframes staticScan {
    0% { background-position: 0 0; }
    100% { background-position: 0 12px; }
}

.frenzy-notice {
    position: absolute;
    top: 15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--frenzy-purple);
    color: #fff;
    border: 2px solid #fff;
    padding: 6px 16px;
    border-radius: 20px;
    font-family: var(--font-heading);
    font-size: 1.1rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.5);
    z-index: 14;
    animation: frenzyBounce 0.5s infinite alternate;
}

@keyframes frenzyBounce {
    from { transform: translateX(-50%) translateY(0); }
    to { transform: translateX(-50%) translateY(-5px); }
}

/* --- Overlay Screen Cards (Start & GameOver) --- */
.overlay-screen {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(18, 16, 14, 0.85);
    backdrop-filter: blur(3px);
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    z-index: 20;
    transition: opacity 0.3s ease;
}

.vintage-intertitle-card {
    background: var(--paper-card);
    border: 4px solid var(--ink-black);
    border-radius: 8px;
    padding: 6px;
    width: 100%;
    max-width: 440px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.8);
}

.card-border-inner {
    border: 2px dashed var(--ink-black);
    border-radius: 4px;
    padding: 24px 20px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.vintage-heading {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--ink-black);
    letter-spacing: 1px;
}

.text-danger { color: var(--red-danger); }

.film-strip-divider {
    width: 100%;
    height: 12px;
    background: repeating-linear-gradient(
        90deg,
        var(--ink-black),
        var(--ink-black) 8px,
        transparent 8px,
        transparent 14px
    );
    margin: 4px 0;
}

.vintage-desc {
    font-size: 0.95rem;
    line-height: 1.4;
    color: var(--text-primary);
}

.vintage-tip {
    font-size: 0.85rem;
    color: var(--text-muted);
    background: var(--bg-paper);
    padding: 6px 12px;
    border-radius: 4px;
    border: 1px solid var(--text-muted);
}

.vintage-btn {
    background: var(--ink-black);
    color: var(--paper-card);
    font-family: var(--font-heading);
    font-size: 1.1rem;
    padding: 10px 24px;
    border: 3px double var(--gold-brass);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-top: 8px;
}

.vintage-btn:hover {
    background: var(--gold-brass);
    color: var(--ink-black);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--gold-glow);
}

.pulse-glow {
    animation: btnPulse 1.5s infinite alternate;
}

@keyframes btnPulse {
    0% { transform: scale(1); }
    100% { transform: scale(1.05); }
}

.final-stats {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 8px;
    background: var(--bg-paper);
    padding: 12px;
    border: 1px solid var(--ink-black);
    border-radius: 6px;
}

.final-stat-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.95rem;
}

/* --- Skill Bar --- */
.skill-bar {
    width: 100%;
    margin-top: 14px;
    display: flex;
    justify-content: center;
}

.skill-btn {
    width: 100%;
    max-width: 400px;
    background: var(--paper-card);
    border: 3px double var(--ink-black);
    border-radius: 8px;
    padding: 10px 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
}

.skill-btn:not(:disabled):hover {
    background: var(--gold-brass);
    transform: translateY(-2px);
    box-shadow: 0 6px 15px var(--gold-glow);
}

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

.skill-icon {
    font-size: 1.8rem;
}

.skill-label {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.skill-name {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--ink-black);
}

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

/* --- Mobile D-Pad Controls --- */
.mobile-controls {
    display: none;
    margin-top: 14px;
    width: 100%;
    justify-content: center;
}

.dpad {
    display: grid;
    grid-template-columns: repeat(3, 56px);
    grid-template-rows: repeat(3, 56px);
    gap: 6px;
    background: var(--paper-card);
    padding: 8px;
    border: 3px solid var(--ink-black);
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.5);
}

.dpad-btn {
    background: var(--bg-paper);
    border: 2px solid var(--ink-black);
    border-radius: 8px;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--ink-black);
    transition: background 0.1s, transform 0.1s;
}

.dpad-btn:active {
    background: var(--gold-brass);
    transform: scale(0.92);
}

.dpad-up { grid-column: 2; grid-row: 1; }
.dpad-left { grid-column: 1; grid-row: 2; }
.dpad-center { grid-column: 2; grid-row: 2; opacity: 0.4; pointer-events: none; }
.dpad-right { grid-column: 3; grid-row: 2; }
.dpad-down { grid-column: 2; grid-row: 3; }

/* --- Help Modal --- */
.modal {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(12, 10, 8, 0.85);
    backdrop-filter: blur(4px);
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    z-index: 100;
}

.modal-content {
    max-width: 500px;
    position: relative;
}

.modal-close {
    position: absolute;
    top: 10px; right: 14px;
    background: transparent;
    border: none;
    font-size: 1.8rem;
    cursor: pointer;
    color: var(--ink-black);
}

.modal-title {
    font-family: var(--font-heading);
    font-size: 1.4rem;
}

.help-grid {
    display: flex;
    flex-direction: column;
    gap: 10px;
    text-align: left;
    margin: 10px 0;
}

.help-item {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--bg-paper);
    padding: 8px 12px;
    border: 1px solid var(--ink-black);
    border-radius: 6px;
}

.help-icon {
    font-size: 1.6rem;
}

.help-info strong {
    font-size: 0.95rem;
    color: var(--ink-black);
}

.help-info p {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 2px;
}

.highlight-box {
    background: #fce8c3;
    border: 2px solid var(--gold-brass);
}

.modal-confirm-btn {
    width: 100%;
    margin-top: 10px;
}

.hidden {
    display: none !important;
}

/* --- Responsive Adaptations --- */
@media (max-width: 768px) {
    .header {
        padding: 8px 12px;
    }
    
    .main-title {
        font-size: 1.2rem;
    }
    
    .subtitle {
        display: none;
    }
    
    .dashboard {
        grid-template-columns: repeat(2, 1fr);
    }

    .energy-card {
        grid-column: span 2;
    }
    
    .canvas-outer-frame {
        padding: 10px 24px;
    }

    .sprocket-holes-left,
    .sprocket-holes-right {
        width: 16px;
    }

    .sprocket-holes-left span,
    .sprocket-holes-right span {
        width: 12px;
        height: 18px;
    }

    .mobile-controls {
        display: flex;
    }
}