/* Spiki Tamagotchi - Apple Style Design */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

:root {
    /* Apple Colors */
    --primary: #007AFF;
    --secondary: #5856D6;
    --success: #34C759;
    --warning: #FF9500;
    --danger: #FF3B30;
    --gray: #8E8E93;
    --gray-light: #C7C7CC;
    --gray-lighter: #E5E5EA;
    --gray-dark: #48484A;

    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.75);
    --glass-border: rgba(255, 255, 255, 0.18);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);

    /* Spacing */
    --radius-sm: 12px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'SF Pro Display', sans-serif;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: var(--font-sans);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    background-size: 200% 200%;
    animation: gradient-shift 15s ease infinite;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    user-select: none;
    overflow-x: hidden;
}

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

/* Main Container - Glassmorphism */
.container {
    width: 100%;
    max-width: 480px;
    background: var(--glass-bg);
    backdrop-filter: blur(30px) saturate(180%);
    -webkit-backdrop-filter: blur(30px) saturate(180%);
    border-radius: var(--radius-xl);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    transition: transform 0.3s ease;
}

.container:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 48px 0 rgba(31, 38, 135, 0.25);
}

/* Header - Minimal Apple Style */
.game-header {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--glass-border);
}

.game-header h1 {
    font-size: 28px;
    font-weight: 700;
    color: white;
    text-align: center;
    letter-spacing: -0.5px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.header-info {
    display: flex;
    justify-content: center;
    gap: 8px;
}

.level-badge, .spiki-count {
    padding: 6px 14px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 600;
    color: white;
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: all 0.2s ease;
}

.level-badge {
    background: linear-gradient(135deg, rgba(255, 204, 0, 0.9), rgba(255, 149, 0, 0.9));
}

.spiki-count {
    background: linear-gradient(135deg, rgba(88, 86, 214, 0.9), rgba(175, 82, 222, 0.9));
}

.level-badge:hover, .spiki-count:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Stats - Clean SF Style */
.stats {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 16px;
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-lg);
}

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

.stat-label {
    min-width: 80px;
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-dark);
    display: flex;
    align-items: center;
    gap: 6px;
}

.stat-bar {
    flex: 1;
    height: 8px;
    background: var(--glass-border);
    border-radius: 10px;
    overflow: hidden;
    position: relative;
}

.stat-fill {
    height: 100%;
    border-radius: 10px;
    transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.stat-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.3) 50%,
        transparent 100%);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.stat-fill.happiness {
    background: linear-gradient(90deg, #FF2D55, #FF6482);
}

.stat-fill.hunger {
    background: linear-gradient(90deg, #FF9500, #FFCC00);
}

.stat-fill.energy {
    background: linear-gradient(90deg, #34C759, #30D158);
}

.stat-fill.exp {
    background: linear-gradient(90deg, #5856D6, #AF52DE);
}

.stat-fill.low {
    animation: pulse-warning 1.5s ease-in-out infinite;
}

@keyframes pulse-warning {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.stat-value {
    min-width: 45px;
    font-size: 13px;
    text-align: right;
    color: var(--gray-dark);
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}

.exp-stat {
    padding-top: 12px;
    border-top: 1px solid var(--glass-border);
    margin-top: 4px;
}

/* Character Area - Enhanced */
.character-area {
    position: relative;
    height: 380px;
    background: linear-gradient(180deg,
        rgba(232, 245, 255, 0.8) 0%,
        rgba(255, 245, 255, 0.8) 100%);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: inset 0 2px 20px rgba(0, 0, 0, 0.05);
    cursor: pointer;
}

/* Spiki Creature */
.spiki-creature {
    position: absolute;
    cursor: grab;
    z-index: 5;
    will-change: transform, left, top;
    touch-action: none;
    transition: left 0.15s ease-out, top 0.15s ease-out;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
}

.spiki-creature:active {
    cursor: grabbing;
    filter: drop-shadow(0 6px 12px rgba(0, 0, 0, 0.2));
}

.spiki-creature img {
    width: 110px;
    height: 110px;
    object-fit: contain;
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
    transition: transform 0.2s ease;
}

.spiki-creature:hover img {
    transform: scale(1.05);
}

.mini-spiki img {
    width: 90px;
    height: 90px;
}

.main-spiki {
    z-index: 10;
}

/* Name Tag */
.spiki-name {
    position: absolute;
    bottom: -24px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 12px;
    font-weight: 600;
    color: white;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(10px);
    padding: 4px 10px;
    border-radius: 20px;
    white-space: nowrap;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

/* Animations */
.spiki-creature.bouncing {
    animation: bounce 0.5s ease;
}

@keyframes bounce {
    0%, 100% { transform: translate(-50%, -50%) scaleY(1); }
    50% { transform: translate(-50%, -60%) scaleY(0.9); }
}

.spiki-creature.jumping {
    animation: jump 0.6s cubic-bezier(0.36, 0, 0.66, -0.56);
}

@keyframes jump {
    0%, 100% { transform: translate(-50%, -50%) translateY(0); }
    50% { transform: translate(-50%, -50%) translateY(-60px); }
}

.spiki-creature.wiggling {
    animation: wiggle 0.5s ease-in-out;
}

@keyframes wiggle {
    0%, 100% { transform: translate(-50%, -50%) rotate(0deg); }
    25% { transform: translate(-50%, -50%) rotate(-10deg); }
    75% { transform: translate(-50%, -50%) rotate(10deg); }
}

.spiki-creature.sleeping img {
    opacity: 0.7;
    filter: grayscale(0.3);
}

.spiki-creature.dancing img {
    animation: dance 0.6s ease-in-out infinite;
}

@keyframes dance {
    0%, 100% { transform: rotate(-5deg) scale(1); }
    50% { transform: rotate(5deg) scale(1.05); }
}

/* Speech Bubble - Modern */
.speech-bubble {
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(-20px);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    color: var(--gray-dark);
    padding: 12px 18px;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 500;
    white-space: nowrap;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 20;
}

.speech-bubble::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 16px;
    height: 16px;
    background: inherit;
    backdrop-filter: inherit;
    clip-path: polygon(50% 100%, 0 0, 100% 0);
}

.speech-bubble.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* Mini Speech Bubbles */
.mini-speech {
    position: absolute;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 500;
    color: var(--gray-dark);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.1);
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.3s ease;
    z-index: 15;
    pointer-events: none;
}

.mini-speech.show {
    opacity: 1;
    transform: translateY(0);
}

/* Effects Container */
.effects {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 15;
}

.effect-item {
    position: absolute;
    font-size: 32px;
    animation: float-up 1.5s ease-out forwards;
    pointer-events: none;
}

@keyframes float-up {
    0% {
        opacity: 1;
        transform: translateY(0) scale(0.5);
    }
    100% {
        opacity: 0;
        transform: translateY(-100px) scale(1);
    }
}

/* Action Buttons - SF iOS Style */
.actions {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    padding: 16px;
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-lg);
}

.action-btn {
    aspect-ratio: 1;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.7));
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-md);
    font-size: 32px;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.action-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center, rgba(255, 255, 255, 0.8), transparent);
    opacity: 0;
    transition: opacity 0.2s;
}

.action-btn:hover::before {
    opacity: 1;
}

.action-btn:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.action-btn:active {
    transform: translateY(-2px) scale(0.98);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* Special Button Styles */
.multiply-btn {
    background: linear-gradient(135deg, rgba(88, 86, 214, 0.2), rgba(175, 82, 222, 0.2));
}

.music-btn {
    background: linear-gradient(135deg, rgba(0, 122, 255, 0.2), rgba(52, 199, 89, 0.2));
}

.music-btn.playing {
    animation: pulse-glow 1.5s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% {
        box-shadow: 0 2px 12px rgba(0, 122, 255, 0.3);
    }
    50% {
        box-shadow: 0 4px 24px rgba(0, 122, 255, 0.6);
    }
}

/* YouTube Panel - Modal Style */
.youtube-panel {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    width: 90%;
    max-width: 500px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(40px);
    border-radius: var(--radius-xl);
    padding: 24px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.youtube-panel.show {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
    pointer-events: auto;
}

.youtube-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--gray-lighter);
}

.youtube-header span {
    font-size: 18px;
    font-weight: 700;
    color: var(--gray-dark);
}

.close-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--gray-lighter);
    border: none;
    font-size: 18px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.close-btn:hover {
    background: var(--gray-light);
    transform: scale(1.1);
}

.youtube-presets {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-bottom: 16px;
}

.preset-btn {
    padding: 12px;
    background: rgba(0, 122, 255, 0.1);
    border: 1px solid rgba(0, 122, 255, 0.3);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.preset-btn:hover {
    background: rgba(0, 122, 255, 0.2);
    transform: translateY(-2px);
}

.preset-btn.active {
    background: var(--primary);
    color: white;
}

.youtube-input {
    display: flex;
    gap: 10px;
    margin-bottom: 16px;
}

.youtube-input input {
    flex: 1;
    padding: 12px 16px;
    border: 1px solid var(--gray-lighter);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-family: var(--font-sans);
    background: rgba(255, 255, 255, 0.8);
    transition: all 0.2s ease;
}

.youtube-input input:focus {
    outline: none;
    border-color: var(--primary);
    background: white;
}

.youtube-input button {
    padding: 12px 20px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.youtube-input button:hover {
    background: #0051D5;
    transform: translateY(-2px);
}

.youtube-player {
    width: 100%;
    border-radius: var(--radius-md);
    overflow: hidden;
    background: #000;
}

.youtube-player iframe {
    width: 100%;
    height: 280px;
    border: none;
}

/* Coding Tip - Bottom Bar */
.coding-tip {
    text-align: center;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-lg);
    font-size: 13px;
    font-weight: 500;
    color: var(--gray-dark);
    transition: all 0.2s ease;
}

.coding-tip:hover {
    background: rgba(255, 255, 255, 0.8);
}

/* Audio Test (Debug) */
#audio-test-btn {
    padding: 10px 18px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--gray-lighter);
    background: rgba(255, 255, 255, 0.9);
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
    color: var(--gray-dark);
    transition: all 0.2s ease;
    font-family: var(--font-sans);
}

#audio-test-btn:hover {
    background: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

#audio-status {
    margin-left: 12px;
    font-size: 12px;
    color: var(--gray);
}

/* Responsive Design */
@media (max-width: 600px) {
    body {
        padding: 10px;
    }

    .container {
        padding: 20px;
        border-radius: var(--radius-lg);
    }

    .game-header h1 {
        font-size: 24px;
    }

    .character-area {
        height: 320px;
    }

    .actions {
        grid-template-columns: repeat(3, 1fr);
        gap: 10px;
    }

    .action-btn {
        font-size: 28px;
    }

    .youtube-panel {
        width: 95%;
        padding: 20px;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    .container {
        background: rgba(28, 28, 30, 0.85);
        border-color: rgba(255, 255, 255, 0.1);
    }

    .stats, .actions, .coding-tip {
        background: rgba(44, 44, 46, 0.8);
    }

    .stat-label, .coding-tip {
        color: rgba(255, 255, 255, 0.9);
    }

    .game-header h1 {
        color: white;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}