:root {
    --bg-dark-prime: #050506;
    --gold-primary: #f39c12;
    --gold-light: #f1c40f;
    --text-muted-prime: #8e8e93;
    --glass-luxury-bg: rgba(255, 255, 255, 0.01);
    --glass-luxury-border: rgba(243, 156, 18, 0.15);
}

body {
    background-color: var(--bg-dark-prime);
    color: #ffffff;
    font-family: 'Prompt', sans-serif;
    overflow-x: hidden;
}

.font-syne { font-family: 'Syne', sans-serif; }
.tracking-wider { letter-spacing: 1.5px; }
.fw-800 { font-weight: 800; }
.fw-600 { font-weight: 600; }

/* แสงพื้นหลังโทนทอง-ส้ม */
.luxury-glow-1 {
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(243, 156, 18, 0.08) 0%, rgba(0,0,0,0) 70%);
    top: -5%;
    right: 10%;
    z-index: -1;
    pointer-events: none;
}

.luxury-glow-2 {
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(211, 84, 0, 0.05) 0%, rgba(0,0,0,0) 70%);
    top: 40%;
    left: -10%;
    z-index: -1;
    pointer-events: none;
}

/* แสงไฟวิ่งตามเมาส์จากโปรเจกต์เดิม */
.glow-mouse {
    position: fixed;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(243, 156, 18, 0.03) 0%, rgba(0,0,0,0) 70%);
    border-radius: 50%;
    z-index: -1;
    pointer-events: none;
    transform: translate(-50%, -50%);
}

/* ป้ายกำกับบนหัวข้อ */
.prime-tag {
    display: inline-block;
    background: linear-gradient(90deg, rgba(243, 156, 18, 0.2), rgba(0,0,0,0));
    border-left: 3px solid var(--gold-primary);
    padding: 6px 16px;
    color: #ffffff;
    font-size: 0.85rem;
    letter-spacing: 2px;
}

.text-gold-gradient {
    background: linear-gradient(90deg, #f39c12, #f3de12);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.text-muted-custom {
    color: var(--text-muted-prime);
    line-height: 1.7;
}

/* ส่วนจัดวางเนื้อหาหลัก */
.hero-split {
    min-height: 85vh;
    padding: 40px 0;
}

/* การ์ดฟอร์มลงทะเบียนแบบกระจกหรูหรา */
.glass-luxury-card {
    background: var(--glass-luxury-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-luxury-border);
    border-radius: 30px;
    box-shadow: 0 40px 80px rgba(0, 0, 0, 0.5);
}

/* ช่องกรอกข้อมูลสุดล้ำ */
.luxury-input {
    background: rgba(255, 255, 255, 0.03) !important;
    border: 1px solid rgba(255, 255, 255, 0.08) !important;
    color: #ffffff !important;
    border-radius: 10px;
    padding: 12px 16px;
    transition: all 0.3s ease;
}

.luxury-input:focus {
    border-color: var(--gold-primary) !important;
    box-shadow: 0 0 15px rgba(243, 156, 18, 0.2) !important;
}

.luxury-input option {
    background: #0f0f12;
    color: white;
}

/* ปุ่มกดสีทองเรืองแสง */
.btn-gold {
    background: linear-gradient(135deg, var(--gold-primary), var(--gold-light));
    color: #000000;
    border: none;
    transition: all 0.3s ease;
}

.btn-gold:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 30px rgba(243, 156, 18, 0.4);
    color: #000000;
}

/* การ์ดโชว์ 3 เสาหลัก */
.pillar-card {
    background: rgba(255, 255, 255, 0.01);
    border: 1px solid rgba(255, 255, 255, 0.03);
    border-radius: 20px;
    transition: all 0.4s ease;
}

.pillar-card:hover {
    background: rgba(243, 156, 18, 0.02);
    border-color: rgba(243, 156, 18, 0.2);
}

.pillar-icon {
    font-size: 2rem;
    color: var(--gold-primary);
}

/* อนิเมชันลูกศรเด้ง */
@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}
.animate-bounce {
    animation: bounce 2s infinite;
}