@charset "UTF-8";

/* ==========================================================================
   1. Root Variables & Reset
   ========================================================================== */
:root {
    --primary-purple: #9333ea;
    --primary-indigo: #4f46e5;
    --primary-rose: #f43f5e;
    --grad-main: linear-gradient(135deg, #a855f7 0%, #6366f1 50%, #f43f5e 100%);
    --grad-hover: linear-gradient(135deg, #9333ea 0%, #4f46e5 50%, #e11d48 100%);
    --grad-green: linear-gradient(135deg, #10b981 0%, #059669 100%);
    --grad-red: linear-gradient(135deg, #f43f5e 0%, #be123c 100%);
    
    --glass-bg: rgba(255, 255, 255, 0.75);
    --glass-border: rgba(255, 255, 255, 0.6);
    --glass-shadow: 0 10px 30px rgba(99, 102, 241, 0.12);
    
    --text-main: #1e293b;
    --text-muted: #64748b;
}

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

body {
    background: #f8fafc radial-gradient(circle at 10% 20%, rgba(168, 85, 247, 0.08) 0%, rgba(99, 102, 241, 0.08) 40%, rgba(244, 63, 94, 0.08) 90%);
    min-height: 100vh;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    color: var(--text-main);
    overflow-x: hidden;
    user-select: none;
    -webkit-user-select: none;
}

/* ==========================================================================
   2. Glassmorphism Components
   ========================================================================== */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    border-radius: 24px;
}

.gradient-btn {
    background: var(--grad-main);
    color: #ffffff;
    font-weight: 700;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.3);
}

.gradient-btn:active {
    transform: scale(0.96);
    box-shadow: 0 2px 10px rgba(99, 102, 241, 0.2);
}

.gradient-text {
    background: var(--grad-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* ==========================================================================
   3. Quiz Screen Options & Timer
   ========================================================================== */
.timer-container {
    width: 100%;
    height: 8px;
    background: rgba(226, 232, 240, 0.8);
    border-radius: 999px;
    overflow: hidden;
}

.timer-bar {
    height: 100%;
    width: 100%;
    background: var(--grad-main);
    border-radius: 999px;
    transition: width 1s linear;
}

.option-card {
    background: rgba(255, 255, 255, 0.9);
    border: 1.5px solid rgba(226, 232, 240, 0.9);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
    border-radius: 18px;
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 14px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.option-card:hover {
    border-color: rgba(99, 102, 241, 0.5);
    background: #ffffff;
}

.option-card:active {
    transform: scale(0.98);
}

.option-badge {
    width: 34px;
    height: 34px;
    border-radius: 12px;
    background: #f1f5f9;
    color: var(--primary-indigo);
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

/* Answer States */
.option-card.correct {
    background: #ecfdf5 !important;
    border-color: #10b981 !important;
    color: #065f46 !important;
    animation: pulseCorrect 0.4s ease forwards;
}
.option-card.correct .option-badge {
    background: #10b981;
    color: #ffffff;
}

.option-card.wrong {
    background: #fff1f2 !important;
    border-color: #f43f5e !important;
    color: #9f1239 !important;
    animation: shake 0.4s ease forwards;
}
.option-card.wrong .option-badge {
    background: #f43f5e;
    color: #ffffff;
}

/* ==========================================================================
   4. Floating Smile & Reward Animations
   ========================================================================== */
.emoji-float {
    position: fixed;
    font-size: 32px;
    pointer-events: none;
    z-index: 9999;
    animation: floatUp 1.6s ease-out forwards;
}

@keyframes floatUp {
    0% {
        opacity: 1;
        transform: translateY(0) scale(0.6) rotate(0deg);
    }
    50% {
        opacity: 0.9;
        transform: translateY(-80px) scale(1.3) rotate(15deg);
    }
    100% {
        opacity: 0;
        transform: translateY(-160px) scale(1) rotate(-15deg);
    }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-8px); }
    40%, 80% { transform: translateX(8px); }
}

@keyframes pulseCorrect {
    0% { transform: scale(0.98); }
    50% { transform: scale(1.03); }
    100% { transform: scale(1); }
}

/* Modal Popup Styles */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.4);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 900;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}