:root {
    --cerulean: #0081a7;
    --tropical-teal: #00afb9;
    --light-yellow: #fdfcdc;
    --soft-apricot: #fed9b7;
    --vibrant-coral: #f07167;
    --dark-text: #2b2d42;
    --glass-bg: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(255, 255, 255, 0.5);
    --font-main: 'Kanit', sans-serif;
    --font-doc: 'Sarabun', sans-serif;
}

body {
    font-family: var(--font-main);
    background: linear-gradient(135deg, #fdfbfb 0%, #ebedee 100%);
    color: var(--dark-text);
    overflow-x: hidden;
}

/* Glassmorphism Card */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.glass-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px 0 rgba(31, 38, 135, 0.2);
}

/* Gradient Buttons */
.btn-modern {
    background: linear-gradient(90deg, var(--cerulean) 0%, var(--tropical-teal) 100%);
    color: white;
    border: none;
    border-radius: 30px;
    padding: 10px 25px;
    font-weight: 500;
    box-shadow: 0 4px 15px rgba(0, 175, 185, 0.3);
    transition: all 0.3s ease;
}

.btn-modern:hover {
    background: linear-gradient(90deg, var(--tropical-teal) 0%, var(--cerulean) 100%);
    transform: scale(1.05);
    color: white;
}

/* Hero Section */
.hero-section {
    position: relative;
    padding: 100px 0;
    overflow: hidden;
    background: radial-gradient(circle at top right, var(--soft-apricot) 0%, transparent 40%),
        radial-gradient(circle at bottom left, var(--light-yellow) 0%, transparent 40%);
}

.feature-icon {
    font-size: 2.5rem;
    background: -webkit-linear-gradient(45deg, var(--cerulean), var(--vibrant-coral));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 15px;
}

/* Animations */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Footer */
footer {
    background: white;
    border-top: 1px solid #eee;
    padding: 30px 0;
    font-size: 0.9rem;
}