/* ============================================
   Chill — Social Anxiety Cool-Down
   Modern, cool, teen-friendly aesthetic
   ============================================ */

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

:root {
    --bg-dark: #0f0f1a;
    --bg-mid: #1a1a2e;
    --bg-card: #252540;
    --ice-1: #67e8f9;
    --ice-2: #22d3ee;
    --ice-3: #06b6d4;
    --mint: #a7f3d0;
    --lavender: #c4b5fd;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --glow: rgba(103, 232, 249, 0.3);
    --radius-sm: 12px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-full: 9999px;
    --transition: 0.3s ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    min-height: 100vh;
    overflow: hidden;
}

.game-container {
    width: 100%;
    height: 100vh;
    position: relative;
    overflow: hidden;
}

/* Background Waves */
.bg-waves {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.wave {
    position: absolute;
    width: 200%;
    height: 200%;
    background: radial-gradient(ellipse at center, transparent 0%, transparent 50%, var(--ice-1) 50.5%, transparent 51%);
    opacity: 0.03;
    animation: wave-float 20s ease-in-out infinite;
}

.wave-1 {
    top: -50%;
    left: -50%;
    animation-delay: 0s;
}

.wave-2 {
    top: -30%;
    left: -60%;
    animation-delay: -7s;
    opacity: 0.02;
}

.wave-3 {
    top: -70%;
    left: -40%;
    animation-delay: -14s;
    opacity: 0.025;
}

@keyframes wave-float {
    0%, 100% { transform: rotate(0deg) scale(1); }
    50% { transform: rotate(180deg) scale(1.1); }
}

/* Navigation */
.game-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    padding: 20px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 100;
}

.back-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 1.5rem;
    opacity: 0.7;
    transition: opacity var(--transition);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.05);
    border-radius: var(--radius-full);
}

.back-link:hover {
    opacity: 1;
}

.timer {
    font-size: 1rem;
    color: var(--ice-1);
    font-weight: 500;
    opacity: 0;
    transition: opacity var(--transition);
    font-variant-numeric: tabular-nums;
}

.timer.visible {
    opacity: 1;
}

/* Screens */
.screen {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s ease, visibility 0.4s ease;
    z-index: 10;
    padding: 20px;
}

.screen.active {
    opacity: 1;
    visibility: visible;
}

/* Title Screen */
.title-content {
    text-align: center;
    max-width: 320px;
}

.ice-icon {
    font-size: 4rem;
    margin-bottom: 20px;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.title {
    font-size: 4rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: 8px;
    background: linear-gradient(135deg, var(--ice-1) 0%, var(--ice-3) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tagline {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 40px;
    font-weight: 400;
}

.start-btn {
    background: linear-gradient(135deg, var(--ice-1) 0%, var(--ice-3) 100%);
    color: var(--bg-dark);
    border: none;
    padding: 16px 48px;
    border-radius: var(--radius-full);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    margin-bottom: 16px;
}

.start-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 40px var(--glow);
}

.time-note {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Situation Screen */
.situation-content, .anxiety-content {
    text-align: center;
    max-width: 360px;
    width: 100%;
}

.question {
    font-size: 1.8rem;
    font-weight: 500;
    margin-bottom: 30px;
    color: var(--text-primary);
}

.situation-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-bottom: 20px;
}

.situation-btn {
    background: var(--bg-card);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    padding: 20px 16px;
    cursor: pointer;
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.situation-btn:hover, .situation-btn:focus {
    border-color: var(--ice-1);
    transform: translateY(-2px);
}

.situation-btn.selected {
    border-color: var(--ice-1);
    background: rgba(103, 232, 249, 0.1);
}

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

.sit-text {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Anxiety Slider */
.anxiety-slider-container {
    margin-bottom: 40px;
}

.anxiety-slider {
    width: 100%;
    height: 8px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--bg-card);
    border-radius: var(--radius-full);
    outline: none;
    margin-bottom: 12px;
}

.anxiety-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 28px;
    height: 28px;
    background: linear-gradient(135deg, var(--ice-1), var(--ice-3));
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 4px 15px var(--glow);
}

.anxiety-slider::-moz-range-thumb {
    width: 28px;
    height: 28px;
    background: linear-gradient(135deg, var(--ice-1), var(--ice-3));
    border-radius: 50%;
    cursor: pointer;
    border: none;
}

.anxiety-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.anxiety-value {
    font-size: 3.5rem;
    font-weight: 300;
    color: var(--ice-1);
}

.continue-btn {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 2px solid var(--ice-1);
    padding: 14px 36px;
    border-radius: var(--radius-full);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
}

.continue-btn:hover {
    background: var(--ice-1);
    color: var(--bg-dark);
}

/* Phase Screens */
.phase-content {
    text-align: center;
    max-width: 320px;
}

.phase-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.phase-title {
    font-size: 2rem;
    font-weight: 500;
    margin-bottom: 12px;
    color: var(--ice-1);
}

.phase-instruction {
    font-size: 1.2rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 40px;
}

/* Tap Prompt */
.tap-prompt {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.tap-circle {
    width: 80px;
    height: 80px;
    border: 3px solid var(--ice-1);
    border-radius: 50%;
    cursor: pointer;
    transition: all var(--transition);
    animation: pulse-ring 2s ease-out infinite;
}

.tap-circle:hover {
    background: rgba(103, 232, 249, 0.2);
}

.tap-circle.tapped {
    background: var(--ice-1);
    animation: none;
    transform: scale(0.9);
}

@keyframes pulse-ring {
    0% { box-shadow: 0 0 0 0 var(--glow); }
    70% { box-shadow: 0 0 0 20px transparent; }
    100% { box-shadow: 0 0 0 0 transparent; }
}

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

/* Breath Circle */
.breath-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 30px;
}

.breath-circle {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(103, 232, 249, 0.2), rgba(6, 182, 212, 0.1));
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.breath-inner {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--ice-1), var(--ice-3));
    transition: transform 4s ease-in-out;
    box-shadow: 0 0 40px var(--glow);
}

.breath-circle.inhale .breath-inner {
    transform: scale(1.3);
}

.breath-circle.exhale .breath-inner {
    transform: scale(0.7);
}

.breath-text {
    font-size: 1.4rem;
    color: var(--text-primary);
    font-weight: 500;
}

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

.count-current {
    color: var(--ice-1);
    font-weight: 600;
}

/* Reframe Screen */
.reframe-text {
    font-size: 1.4rem;
    color: var(--text-primary);
    line-height: 1.6;
    margin-bottom: 40px;
    font-weight: 400;
}

/* Launch Screen */
.launch-content {
    animation: fade-up 0.6s ease;
}

@keyframes fade-up {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.launch-icon {
    font-size: 4rem;
    margin-bottom: 20px;
}

.launch-title {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 12px;
    background: linear-gradient(135deg, var(--ice-1), var(--mint));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.launch-affirmation {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.countdown {
    margin-top: 20px;
}

.countdown-number {
    font-size: 4rem;
    font-weight: 200;
    color: var(--ice-1);
    animation: pulse-number 1s ease-in-out infinite;
}

@keyframes pulse-number {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.1); opacity: 0.8; }
}

/* Complete Screen */
.complete-content {
    text-align: center;
    max-width: 320px;
}

.complete-check {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--mint), var(--ice-1));
    color: var(--bg-dark);
    font-size: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    animation: pop-in 0.5s ease;
}

@keyframes pop-in {
    0% { transform: scale(0); }
    70% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

.complete-title {
    font-size: 2.5rem;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--ice-1);
}

.complete-message {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.complete-stats {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    padding: 20px;
    margin-bottom: 30px;
}

.stat {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    margin-bottom: 8px;
}

.stat-before {
    font-size: 2rem;
    color: #f87171;
    font-weight: 500;
}

.stat-arrow {
    color: var(--text-muted);
    font-size: 1.5rem;
}

.stat-after {
    font-size: 2rem;
    color: var(--mint);
    font-weight: 500;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.complete-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--ice-1), var(--ice-3));
    color: var(--bg-dark);
    border: none;
    padding: 16px 36px;
    border-radius: var(--radius-full);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
}

.btn-primary:hover {
    transform: scale(1.02);
    box-shadow: 0 10px 30px var(--glow);
}

.btn-secondary {
    background: transparent;
    color: var(--text-secondary);
    border: none;
    padding: 12px;
    font-size: 0.95rem;
    cursor: pointer;
    transition: color var(--transition);
}

.btn-secondary:hover {
    color: var(--text-primary);
}

/* Responsive */
@media (max-width: 380px) {
    .title {
        font-size: 3rem;
    }
    
    .situation-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    
    .situation-btn {
        padding: 16px 12px;
    }
    
    .breath-circle {
        width: 150px;
        height: 150px;
    }
    
    .breath-inner {
        width: 100px;
        height: 100px;
    }
}