:root {
    /* Color Palette */
    --bg-light: #ffffff;
    --accent-blue: #004aad;
    --accent-cyan: #0056b3;
    --accent-purple: #000080;
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(0, 0, 0, 0.1);
    --text-primary: #1a1a1a;
    --text-secondary: #555555;

    /* Gradients */
    --grad-primary: linear-gradient(135deg, #004aad 0%, #002366 100%);
    --grad-surface: linear-gradient(135deg, rgba(0, 0, 0, 0.05) 0%, rgba(0, 0, 0, 0.02) 100%);

    /* Effects */
    --blur: 15px;
    --shadow: 0 8px 32px 0 rgba(0, 74, 173, 0.15);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Prompt', 'Outfit', 'Sarabun', sans-serif;
}

body {
    background: linear-gradient(-45deg, #ffffff, #f0fbff, #f5f5f5, #ffffff);
    background-size: 400% 400%;
    animation: gradientBG 15s ease infinite;
    color: var(--text-primary);
    overflow-x: hidden;
    line-height: 1.6;
}

@keyframes gradientBG {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--blur));
    -webkit-backdrop-filter: blur(var(--blur));
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    box-shadow: var(--shadow);
}

.btn.glass {
    background: #ffffff;
    color: #1a1a1a;
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.btn.glass:hover {
    background: #f0f0f0;
    transform: translateY(-2px);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

h1,
h2,
h3 {
    font-weight: 700;
    letter-spacing: -0.02em;
}

.btn {
    padding: 12px 24px;
    border-radius: 50px;
    border: none;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    color: #fff;
}

.hero-benefits {
    margin: 40px auto;
    max-width: 800px;
    background: rgba(255, 255, 255, 0.05);
    padding: 30px;
    border-radius: 20px;
    border: 1px solid var(--glass-border);
}

.benefits-title {
    color: var(--accent-cyan);
    margin-bottom: 25px;
    font-size: 1.5rem;
    font-weight: 600;
}

.benefits-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
    text-align: left;
    max-width: 500px;
    margin: 0 auto;
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 1.1rem;
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.03);
    padding: 12px 20px;
    border-radius: 12px;
    transition: all 0.3s ease;
}

.benefit-item:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateX(10px);
}

.benefit-icon {
    font-size: 1.4rem;
}

.btn-primary {
    background: var(--grad-primary);
    color: #fff;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 210, 255, 0.3);
}

.glass-nav {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: 1100px;
    z-index: 1000;
    padding: 15px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-img {
    height: 75px;
    width: 75px;
    display: block;
    background: transparent;
    padding: 0;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--accent-cyan);
}

.logo-link {
    text-decoration: none;
    display: flex;
    align-items: center;
}

.nav-links {
    display: flex;
    gap: 15px;
    list-style: none;
    flex-wrap: nowrap;
}

.nav-links a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    transition: color 0.3s ease;
    white-space: nowrap;
}

.nav-links a:hover {
    color: var(--accent-blue);
}

.lang-selector {
    display: flex;
    gap: 10px;
}

.lang-switch {
    background: rgba(0, 0, 0, 0.05);
    border: 1px solid var(--glass-border);
    padding: 6px;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lang-switch:hover {
    background: #fff;
    border-color: var(--accent-blue);
}

.lang-switch img {
    filter: drop-shadow(0 0 2px rgba(0, 0, 0, 0.2));
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Mobile Menu */
@media (max-width: 900px) {
    .menu-toggle {
        display: block !important;
        background: none;
        border: none;
        color: var(--accent-blue) !important;
        font-size: 1.8rem;
        cursor: pointer;
        transition: transform 0.3s ease;
    }

    .menu-toggle:hover {
        transform: scale(1.1);
    }

    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(20px);
        padding: 30px;
        border-radius: 0 0 16px 16px;
        border: 1px solid var(--glass-border);
        border-top: none;
        gap: 20px;
        text-align: center;
    }

    .nav-links.active {
        display: flex;
    }

    .lang-selector {
        margin-left: auto;
        margin-right: 15px;
    }
}

/* Base Responsive */
@media (max-width: 768px) {
    .hero {
        padding-top: 120px;
    }

    .hero-title {
        font-size: 2.8rem;
    }
}