/* ===========================
   CSS Variables
   =========================== */
@import url('https://fonts.googleapis.com/css2?family=Fredoka:wght@400;600;700&family=Caveat:wght@700&display=swap');

:root {
    /* Christmas Colors */
    --color-primary: #165B33;
    --color-primary-dark: #0D3D22;
    --color-secondary: #BB2528;
    --color-accent: #F7E7CE;
    --color-gold: #FFD700;
    --color-white: #FFFFFF;
    --color-snow: #F0F8FF;
    --color-cream: #FFF8E7;

    /* UI Colors */
    --color-bg: #0F4C2A;
    --color-text: #FFFFFF;
    --color-text-dark: #2C3E50;
    --color-error: #E74C3C;
    --color-success: #27AE60;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;

    /* Typography */
    --font-primary: 'Fredoka', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-handwritten: 'Caveat', cursive;
    --font-size-xs: 0.875rem;
    --font-size-sm: 1rem;
    --font-size-md: 1.125rem;
    --font-size-lg: 1.5rem;
    --font-size-xl: 2rem;
    --font-size-xxl: 2.5rem;

    /* Borders & Shadows */
    --border-radius: 1rem;
    --border-radius-sm: 0.5rem;
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --box-shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.2);

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

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    background:
        radial-gradient(circle at 20% 80%, rgba(187, 37, 40, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 215, 0, 0.1) 0%, transparent 50%),
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 10px,
            rgba(255, 255, 255, 0.02) 10px,
            rgba(255, 255, 255, 0.02) 20px
        ),
        linear-gradient(180deg, #0D3D22 0%, #165B33 50%, #0F4C2A 100%);
    color: var(--color-text);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* ===========================
   App Container
   =========================== */
#app {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
}

/* ===========================
   Header
   =========================== */
.app-header {
    padding: 1.25rem 1rem;
    background: linear-gradient(135deg, rgba(187, 37, 40, 0.85) 0%, rgba(139, 28, 30, 0.9) 100%);
    backdrop-filter: blur(10px);
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    position: relative;
    overflow: hidden;
}

@media (max-width: 600px) {
    .app-header {
        flex-direction: column;
        gap: 0.75rem;
    }
}

.app-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        repeating-linear-gradient(
            90deg,
            transparent,
            transparent 30px,
            rgba(255, 255, 255, 0.03) 30px,
            rgba(255, 255, 255, 0.03) 60px
        );
    pointer-events: none;
}

.header-left {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    flex: 1;
    position: relative;
    z-index: 1;
}

.app-title {
    font-size: 2.25rem;
    font-weight: 700;
    line-height: 1.1;
    text-align: center;
    letter-spacing: -0.02em;
    text-shadow:
        2px 2px 0px rgba(0, 0, 0, 0.3),
        0 0 20px rgba(255, 215, 0, 0.3);
}

.session-pin {
    font-size: 0.85rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.9);
    background: rgba(0, 0, 0, 0.3);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    letter-spacing: 0.5px;
}

.session-pin span {
    color: var(--color-gold);
    font-weight: 700;
    font-size: 1rem;
}

.session-switch-btn {
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    margin-left: 0.5rem;
    border-radius: 6px;
    transition: all var(--transition-fast);
}

.session-switch-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    color: var(--color-gold);
    transform: rotate(180deg);
}

.header-controls {
    display: flex;
    gap: 0.625rem;
    justify-content: center;
    position: relative;
    z-index: 1;
}

.icon-btn {
    background: rgba(255, 248, 231, 0.95);
    border: 3px solid rgba(139, 28, 30, 0.4);
    border-radius: 12px;
    font-size: 1.5rem;
    padding: 0.5rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    width: 52px;
    height: 52px;
    display: flex;
    box-shadow:
        0 4px 0 rgba(139, 28, 30, 0.3),
        0 6px 12px rgba(0, 0, 0, 0.2);
    align-items: center;
    justify-content: center;
}

.icon-btn:hover {
    transform: translateY(-2px);
    box-shadow:
        0 6px 0 rgba(139, 28, 30, 0.3),
        0 8px 16px rgba(0, 0, 0, 0.3);
}

.icon-btn:active {
    transform: translateY(2px);
    box-shadow:
        0 2px 0 rgba(139, 28, 30, 0.3),
        0 3px 6px rgba(0, 0, 0, 0.2);
}

.icon-btn[style*="background: #ff4444"] {
    background: linear-gradient(135deg, #ff6b6b 0%, #ff4444 100%) !important;
    border-color: rgba(139, 28, 30, 0.6);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

/* ===========================
   Progress Bar
   =========================== */
.progress-container {
    padding: 1rem 1.25rem;
    background: rgba(0, 0, 0, 0.15);
}

.progress-bar {
    width: 100%;
    height: 16px;
    background: rgba(13, 61, 34, 0.6);
    border-radius: 20px;
    overflow: hidden;
    margin-bottom: 0.625rem;
    border: 2px solid rgba(255, 248, 231, 0.2);
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.3);
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #FFD700 0%, #FFA500 50%, #FFD700 100%);
    border-radius: 20px;
    width: 0%;
    transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
}

.progress-text {
    text-align: center;
    font-size: 0.9375rem;
    font-weight: 600;
    opacity: 0.95;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

/* ===========================
   Main Content
   =========================== */
.main-content {
    flex: 1;
    overflow-x: hidden;
}

.screen {
    display: none;
    width: 100%;
    min-height: 100%;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding: var(--spacing-sm);
}

.screen.active {
    display: flex;
}

.content-wrapper {
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
    padding-bottom: 250px; /* Space for mobile keyboard */
}

.screen-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-sm);
}

.screen-title.celebration {
    font-size: var(--font-size-xxl);
    animation: pulse 1s ease-in-out infinite;
}

.screen-subtitle {
    text-align: center;
    font-size: var(--font-size-md);
    margin-bottom: var(--spacing-lg);
    opacity: 0.9;
}

.instruction-text {
    text-align: center;
    font-size: var(--font-size-md);
    margin-top: var(--spacing-md);
    opacity: 0.8;
}

/* ===========================
   Buttons
   =========================== */
.primary-btn,
.secondary-btn {
    width: 100%;
    padding: 1.125rem 1.5rem;
    font-family: var(--font-primary);
    font-size: 1.25rem;
    font-weight: 700;
    border: none;
    border-radius: 16px;
    cursor: pointer;
    transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    margin-top: var(--spacing-sm);
    touch-action: manipulation;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
    position: relative;
    overflow: hidden;
}

.primary-btn {
    background: linear-gradient(135deg, #E63946 0%, #BB2528 100%);
    color: var(--color-white);
    box-shadow:
        0 6px 0 #8B1A1D,
        0 8px 16px rgba(0, 0, 0, 0.3);
    border: 3px solid rgba(139, 26, 29, 0.3);
}

.primary-btn:hover {
    transform: translateY(-3px);
    box-shadow:
        0 9px 0 #8B1A1D,
        0 12px 20px rgba(0, 0, 0, 0.4);
}

.primary-btn:active {
    transform: translateY(3px);
    box-shadow:
        0 3px 0 #8B1A1D,
        0 4px 8px rgba(0, 0, 0, 0.3);
}

.primary-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.secondary-btn {
    background: rgba(255, 248, 231, 0.2);
    color: var(--color-cream);
    border: 3px solid rgba(255, 248, 231, 0.4);
    box-shadow:
        0 4px 0 rgba(255, 248, 231, 0.1),
        0 6px 12px rgba(0, 0, 0, 0.2);
}

.secondary-btn:hover {
    background: rgba(255, 248, 231, 0.3);
    transform: translateY(-2px);
    box-shadow:
        0 6px 0 rgba(255, 248, 231, 0.15),
        0 8px 16px rgba(0, 0, 0, 0.3);
}

.secondary-btn:active {
    transform: translateY(2px);
    box-shadow:
        0 2px 0 rgba(255, 248, 231, 0.1),
        0 3px 6px rgba(0, 0, 0, 0.2);
}

/* ===========================
   Code Entry Screen
   =========================== */
.code-input-container {
    margin: var(--spacing-lg) 0;
}

.code-input {
    width: 100%;
    padding: 1.25rem 1rem;
    font-family: var(--font-primary);
    font-size: 1.75rem;
    font-weight: 700;
    text-align: center;
    border: 4px solid rgba(255, 248, 231, 0.3);
    border-radius: 16px;
    background: rgba(13, 61, 34, 0.6);
    color: var(--color-cream);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    transition: all 0.2s ease;
    box-shadow:
        inset 0 2px 4px rgba(0, 0, 0, 0.3),
        0 4px 12px rgba(0, 0, 0, 0.2);
}

.code-input::placeholder {
    color: rgba(255, 248, 231, 0.4);
    font-weight: 600;
}

.code-input:focus {
    outline: none;
    border-color: #FFD700;
    background: rgba(13, 61, 34, 0.8);
    box-shadow:
        inset 0 2px 4px rgba(0, 0, 0, 0.3),
        0 0 0 3px rgba(255, 215, 0, 0.3),
        0 6px 20px rgba(255, 215, 0, 0.4);
}

.code-input.special-code {
    border-color: var(--color-gold);
    background: rgba(255, 215, 0, 0.1);
    box-shadow: 0 0 20px rgba(255, 215, 0, 0.3);
    animation: goldGlow 1s ease-in-out infinite;
}

.error-message,
.success-message {
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    margin-top: var(--spacing-sm);
    text-align: center;
    font-weight: 500;
}

.error-message {
    background: rgba(231, 76, 60, 0.2);
    border: 2px solid var(--color-error);
    color: var(--color-white);
}

.success-message {
    background: rgba(39, 174, 96, 0.2);
    border: 2px solid var(--color-success);
    color: var(--color-white);
}

.hidden {
    display: none !important;
}

/* ===========================
   Shake-o-Meter Screen
   =========================== */
.shake-meter-container {
    margin: var(--spacing-xl) 0;
}

.shake-meter {
    width: 100%;
    height: 60px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 30px;
    border: 3px solid rgba(255, 255, 255, 0.4);
    position: relative;
    overflow: hidden;
}

.shake-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-success), var(--color-gold));
    border-radius: 30px;
    width: 0%;
    transition: width 0.1s ease-out;
    position: relative;
}

.shake-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 1.5s infinite;
}

.shake-percent {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: var(--font-size-lg);
    font-weight: 700;
    z-index: 10;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

/* ===========================
   Tap Game Screen
   =========================== */
.tap-meter-container {
    margin: var(--spacing-xl) 0;
}

.tap-meter {
    width: 100%;
    height: 60px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 30px;
    border: 3px solid rgba(255, 255, 255, 0.4);
    position: relative;
    overflow: hidden;
}

.tap-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-success), var(--color-gold));
    border-radius: 30px;
    width: 0%;
    transition: width 0.1s ease-out;
    position: relative;
}

.tap-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 1.5s infinite;
}

.tap-percent {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: var(--font-size-lg);
    font-weight: 700;
    z-index: 10;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

/* ===========================
   Door Selection Screen
   =========================== */
.doors-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
    margin: var(--spacing-xl) 0;
    perspective: 1000px;
}

.door {
    aspect-ratio: 3/4;
    position: relative;
    cursor: pointer;
    transform-style: preserve-3d;
    transition: transform var(--transition-slow);
}

.door.selected {
    transform: scale(1.05);
}

.door.opening {
    pointer-events: none;
}

.door-front,
.door-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: var(--border-radius);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: var(--box-shadow-lg);
}

.door-front {
    background: linear-gradient(135deg, #8B4513, #654321);
    border: 4px solid #4A2511;
}

.door:nth-child(1) .door-front {
    background: linear-gradient(135deg, #165B33, #0D3D22);
    border-color: #0A2818;
}

.door:nth-child(2) .door-front {
    background: linear-gradient(135deg, #BB2528, #8B1A1D);
    border-color: #5A0D0F;
}

.door:nth-child(3) .door-front {
    background: linear-gradient(135deg, #FFD700, #FFA500);
    border-color: #CC8800;
}

.door-back {
    background: radial-gradient(circle, #FFF9E6, #F7E7CE);
    transform: rotateY(180deg);
}

.door.opening .door-front {
    animation: doorOpen 0.6s ease-out forwards;
}

.door.opening .door-back {
    animation: doorReveal 0.6s ease-out forwards;
}

.wreath {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.door-number {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-white);
}

.door-content {
    font-size: 4rem;
}

/* ===========================
   Slot Machine Screen
   =========================== */
.slot-machine {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
    margin: var(--spacing-xl) 0;
    padding: var(--spacing-lg);
    background: rgba(0, 0, 0, 0.3);
    border-radius: var(--border-radius);
    border: 4px solid var(--color-gold);
    box-shadow: var(--box-shadow-lg);
}

.slot-reel {
    height: 120px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-sm);
    border: 3px solid rgba(255, 255, 255, 0.3);
    overflow: hidden;
    position: relative;
}

.reel-content {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.reel-icon {
    width: 100%;
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
}

.slot-reel.spinning .reel-content {
    animation: spin 0.3s linear infinite;
}

.slot-reel.stopped .reel-content {
    animation: stopBounce 0.8s ease-out forwards;
}

/* ===========================
   Prize Reveal Screen
   =========================== */
.prize-card {
    background: rgba(255, 255, 255, 0.1);
    border: 3px solid var(--color-gold);
    border-radius: var(--border-radius);
    padding: var(--spacing-sm);
    margin: var(--spacing-sm) 0;
    text-align: center;
    box-shadow: var(--box-shadow-lg);
}

.prize-icon {
    font-size: 6rem;
    margin-bottom: var(--spacing-sm);
}

.prize-name {
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: var(--spacing-sm);
    color: var(--color-gold);
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.5);
    letter-spacing: 0.1em;
    line-height: 1.2;
}

.prize-divider {
    font-size: var(--font-size-lg);
    margin: var(--spacing-sm) 0 var(--spacing-md);
    opacity: 0.6;
}

.prize-description {
    font-size: var(--font-size-lg);
    opacity: 0.9;
    margin-bottom: var(--spacing-md);
    font-weight: 500;
}

.prize-image {
    width: 100%;
    max-width: 300px;
    height: auto;
    border-radius: var(--border-radius-sm);
    margin: var(--spacing-md) auto;
}

.prize-image img {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius-sm);
}

.name-entry {
    margin: var(--spacing-lg) 0;
}

.name-entry label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-sm);
    text-align: center;
}

.name-input {
    width: 100%;
    padding: var(--spacing-md);
    font-size: var(--font-size-md);
    text-align: center;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--border-radius);
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
}

.name-input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.name-input:focus {
    outline: none;
    border-color: var(--color-gold);
    background: rgba(255, 255, 255, 0.15);
}

/* ===========================
   Bonus Screen
   =========================== */
.bonus-wrapper {
    text-align: center;
}

.bonus-title {
    font-size: var(--font-size-xxl);
    color: var(--color-gold);
    animation: pulse 1s ease-in-out infinite;
}

.bonus-animation {
    margin: var(--spacing-xl) 0;
}

.bonus-stars {
    font-size: 4rem;
    animation: sparkle 1s ease-in-out infinite;
}

/* ===========================
   History Screen
   =========================== */
.history-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.history-filters {
    display: flex;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.filter-btn {
    flex: 1;
    padding: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--border-radius-sm);
    color: var(--color-white);
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-btn.active {
    background: var(--color-gold);
    border-color: var(--color-gold);
    color: var(--color-text-dark);
}

.history-list {
    max-height: 60vh;
    overflow-y: auto;
}

.history-item {
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius-sm);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.history-item.claimed {
    border-color: var(--color-success);
}

.history-item.unclaimed {
    opacity: 0.6;
}

.history-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xs);
}

.history-prize-name {
    font-size: var(--font-size-md);
    font-weight: 600;
}

.history-claimer {
    font-size: var(--font-size-sm);
    opacity: 0.8;
}

.history-timestamp {
    font-size: var(--font-size-xs);
    opacity: 0.6;
}

.empty-state {
    text-align: center;
    opacity: 0.6;
    padding: var(--spacing-xl);
}

/* ===========================
   Confetti Canvas
   =========================== */
#confettiCanvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
}

/* ===========================
   Responsive Design
   =========================== */
@media (max-width: 375px) {
    :root {
        --font-size-xl: 1.75rem;
        --font-size-xxl: 2rem;
    }

    .doors-container {
        gap: var(--spacing-xs);
    }

    .wreath {
        font-size: 2rem;
    }

    .prize-name {
        font-size: 2.5rem;
    }

    .prize-icon {
        font-size: 3.5rem;
    }

    .screen-title.celebration {
        font-size: 1.5rem;
    }

    .prize-card {
        padding: var(--spacing-sm);
        margin: var(--spacing-xs) 0;
    }
}

@media (min-width: 768px) {
    .content-wrapper {
        max-width: 600px;
    }
}