/* 🎨 SaaS Sales Landing Page - style.css */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Noto+Sans+Thai:wght@300;400;500;600;700&display=swap');

:root {
    --bg-dark: #070913;
    --bg-card: rgba(15, 22, 42, 0.6);
    --border-color: rgba(255, 255, 255, 0.08);
    
    --primary: #38bdf8;
    --primary-glow: rgba(56, 189, 248, 0.3);
    --secondary: #c084fc;
    --secondary-glow: rgba(192, 132, 252, 0.3);
    --accent: #22c55e;
    
    --text-light: #f8fafc;
    --text-muted: #94a3b8;
    
    --font-family: 'Outfit', 'Noto Sans Thai', sans-serif;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-light);
    font-family: var(--font-family);
    line-height: 1.6;
    overflow-x: hidden;
    background-image: 
        radial-gradient(at 0% 0%, rgba(56, 189, 248, 0.07) 0px, transparent 50%),
        radial-gradient(at 100% 50%, rgba(192, 132, 252, 0.05) 0px, transparent 50%),
        radial-gradient(at 50% 100%, rgba(56, 189, 248, 0.05) 0px, transparent 50%);
}

/* 🧭 Header Navigation */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 8%;
    border-bottom: 1px solid var(--border-color);
    backdrop-filter: blur(12px);
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: rgba(7, 9, 19, 0.8);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 800;
    font-size: 1.3rem;
    text-decoration: none;
    color: white;
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 15px var(--primary-glow);
}

.logo-icon svg {
    width: 20px;
    height: 20px;
    fill: white;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
}

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

.nav-btn {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    padding: 0.65rem 1.5rem;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: 0 4px 15px var(--primary-glow);
    transition: var(--transition);
}

.nav-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(56, 189, 248, 0.4);
}

/* 🚀 Hero Section */
.hero {
    padding: 8rem 8% 5rem 8%;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.badge-hero {
    display: inline-block;
    padding: 0.4rem 1rem;
    border-radius: 50px;
    background-color: rgba(56, 189, 248, 0.08);
    border: 1px solid rgba(56, 189, 248, 0.15);
    color: var(--primary);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 2rem;
    letter-spacing: 0.5px;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.25;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
}

.gradient-text {
    background: linear-gradient(135deg, #ffffff 40%, var(--primary) 70%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.15rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-ctas {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 4rem;
}

.btn-large {
    padding: 0.9rem 2.2rem;
    border-radius: 12px;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    text-decoration: none;
    transition: var(--transition);
}

.btn-large.primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    border: none;
    box-shadow: 0 4px 20px var(--primary-glow);
}

.btn-large.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(56, 189, 248, 0.4);
}

.btn-large.secondary {
    background-color: transparent;
    color: white;
    border: 1px solid var(--border-color);
}

.btn-large.secondary:hover {
    border-color: var(--text-muted);
    background-color: rgba(255, 255, 255, 0.02);
}

/* 🌟 Features Grid */
.section {
    padding: 6rem 8%;
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.05rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.feature-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2.5rem 2rem;
    backdrop-filter: blur(12px);
    transition: var(--transition);
}

.feature-card:hover {
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
}

.feature-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    background-color: rgba(56, 189, 248, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(56, 189, 248, 0.15);
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* 🏷️ Pricing Grid */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    align-items: center;
}

.pricing-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 3rem 2.2rem;
    backdrop-filter: blur(12px);
    position: relative;
    transition: var(--transition);
}

.pricing-card:hover {
    transform: translateY(-5px);
}

.pricing-card.popular {
    border-color: var(--primary);
    box-shadow: 0 10px 30px rgba(56, 189, 248, 0.1);
    transform: scale(1.03);
}

.pricing-card.popular:hover {
    transform: scale(1.03) translateY(-5px);
}

.popular-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.35rem 1rem;
    border-radius: 50px;
    box-shadow: 0 4px 10px rgba(56, 189, 248, 0.2);
}

.pricing-header h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.pricing-header p {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.price {
    font-size: 2.75rem;
    font-weight: 800;
    margin-bottom: 2rem;
    color: white;
}

.price span {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-muted);
}

.pricing-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2.5rem;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.9rem;
    color: var(--text-light);
}

.pricing-features svg {
    width: 18px;
    height: 18px;
    fill: var(--accent);
}

.btn-pricing {
    width: 100%;
    padding: 0.85rem;
    border-radius: 12px;
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    border: 1px solid var(--border-color);
    background-color: rgba(255, 255, 255, 0.03);
    color: white;
    transition: var(--transition);
    display: block;
    text-align: center;
    text-decoration: none;
}

.pricing-card.popular .btn-pricing {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border: none;
    box-shadow: 0 4px 15px var(--primary-glow);
}

.pricing-card.popular .btn-pricing:hover {
    box-shadow: 0 6px 20px rgba(56, 189, 248, 0.4);
}

.btn-pricing:hover {
    border-color: var(--text-muted);
    background-color: rgba(255, 255, 255, 0.05);
}

/* 📋 Lead/Registration Form */
.signup-layout {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 4rem;
    align-items: center;
}

.signup-text h2 {
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 1.5rem;
}

.signup-text p {
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.promo-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.2);
    color: var(--accent);
    padding: 0.5rem 1.2rem;
    border-radius: 10px;
    font-weight: 700;
    font-size: 0.9rem;
}

.form-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 3rem;
    backdrop-filter: blur(12px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.form-group input, .form-group select {
    width: 100%;
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 0.85rem 1rem;
    color: white;
    font-family: var(--font-family);
    font-size: 0.95rem;
    transition: var(--transition);
}

.form-group input:focus, .form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 10px rgba(56, 189, 248, 0.15);
}

.btn-submit {
    width: 100%;
    padding: 0.95rem;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    font-weight: 700;
    font-size: 1rem;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 20px var(--primary-glow);
    transition: var(--transition);
}

.btn-submit:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 25px rgba(56, 189, 248, 0.4);
}

.success-message {
    display: none;
    text-align: center;
    animation: fadeIn 0.4s ease;
}

.success-icon {
    width: 60px;
    height: 60px;
    background-color: rgba(34, 197, 94, 0.1);
    color: var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto 1.5rem auto;
    border: 1px solid rgba(34, 197, 94, 0.2);
}

/* 👥 Testimonials section */
.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.testimonial-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2.5rem;
    backdrop-filter: blur(12px);
}

.testimonial-text {
    font-size: 1rem;
    color: var(--text-light);
    margin-bottom: 1.5rem;
    font-style: italic;
}

.client-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.client-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: white;
}

.client-details h4 {
    font-size: 0.95rem;
    font-weight: 600;
}

.client-details p {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Footer */
footer {
    padding: 4rem 8% 2rem 8%;
    border-top: 1px solid var(--border-color);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

@keyframes fadeIn {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

@media (max-width: 900px) {
    .features-grid, .pricing-grid, .signup-layout, .testimonial-grid {
        grid-template-columns: 1fr;
    }
    .pricing-card.popular {
        transform: none;
    }
}