/* Custom Styles for TP-RoboClassroom - Balanced Cyber Edition */
@import url('https://fonts.googleapis.com/css2?family=Prompt:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&family=Fira+Code:wght@400;500;600&display=swap');

:root {
    --cyber-blue: #2563eb;
    --cyber-cyan: #06b6d4;
    --cyber-emerald: #10b981;
    --cyber-purple: #8b5cf6;
    --cyber-amber: #f59e0b;
    --cyber-rose: #f43f5e;
}

/* ==============================================================
   1. Base Typography & Fluid Proportions (พอดีๆ สมส่วน)
   ============================================================== */
html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
    scroll-behavior: smooth;
}

/* ปรับขนาดตัวอักษรแบบพอดีๆ (ไม่เล็กเกินไป และไม่ใหญ่ล้นจอ) */
html[data-font-scale="small"] {
    font-size: 14.5px !important;
}
html[data-font-scale="normal"] {
    font-size: 16px !important;
}
html[data-font-scale="large"] {
    font-size: 17.5px !important;
}

body {
    font-family: 'Prompt', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: #f8fafc;
    color: #1e293b;
    line-height: 1.55;
    background-image: 
        radial-gradient(at 0% 0%, rgba(6, 182, 212, 0.03) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(99, 102, 241, 0.03) 0px, transparent 50%);
    background-attachment: fixed;
}

code, pre, .font-mono {
    font-family: 'Fira Code', monospace;
}

/* Form Controls (ขนาดพอดีมือ ไม่ล้นจอ) */
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="datetime-local"],
select,
textarea {
    font-family: inherit;
    font-size: 0.9375rem; /* ~15px พอดีๆ */
}

/* ==============================================================
   2. Well-Proportioned Cards & Micro-interactions
   ============================================================== */
.cyber-card {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.cyber-card:hover {
    transform: translateY(-2px);
    border-color: #93c5fd;
    box-shadow: 0 8px 18px -4px rgba(37, 99, 235, 0.08), 0 2px 4px -1px rgba(37, 99, 235, 0.03);
}

.cyber-led-green {
    width: 8px;
    height: 8px;
    background-color: #10b981;
    border-radius: 50%;
    box-shadow: 0 0 8px #10b981;
}

.cyber-led-cyan {
    width: 8px;
    height: 8px;
    background-color: #06b6d4;
    border-radius: 50%;
    box-shadow: 0 0 8px #06b6d4;
}

.neon-badge-cyan {
    background: rgba(6, 182, 212, 0.1);
    color: #0e7490;
    border: 1px solid rgba(6, 182, 212, 0.3);
}

.neon-badge-purple {
    background: rgba(139, 92, 246, 0.1);
    color: #6d28d9;
    border: 1px solid rgba(139, 92, 246, 0.3);
}

.neon-badge-emerald {
    background: rgba(16, 185, 129, 0.1);
    color: #047857;
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.neon-badge-amber {
    background: rgba(245, 158, 11, 0.1);
    color: #b45309;
    border: 1px solid rgba(245, 158, 11, 0.3);
}

/* Banners (ขนาดกระชับ สบายตา ไม่กินพื้นที่มากเกินไป) */
.tech-hero-banner {
    background: linear-gradient(135deg, #090d16 0%, #1e1b4b 35%, #1e3a8a 70%, #0369a1 100%);
    position: relative;
    border: 1px solid rgba(56, 189, 248, 0.2);
    box-shadow: 0 12px 25px -8px rgba(15, 23, 42, 0.25);
}

.tech-student-banner {
    background: linear-gradient(135deg, #090d16 0%, #1e1b4b 35%, #312e81 65%, #1e40af 100%);
    position: relative;
    border: 1px solid rgba(129, 140, 248, 0.25);
    box-shadow: 0 12px 25px -8px rgba(30, 27, 75, 0.3);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: #f1f5f9;
}
::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* Wheel Canvas Container */
.wheel-container {
    position: relative;
    width: 300px;
    height: 300px;
    max-width: 100%;
    margin: 0 auto;
}

/* Sticky Note animation */
.sticky-note {
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.sticky-note:hover {
    transform: translateY(-3px) scale(1.01);
    box-shadow: 0 8px 20px -4px rgba(0, 0, 0, 0.12);
}