/* Sangkan Office landing — aligned with landing-maid design system */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: 'Noto Sans Thai', 'Inter', sans-serif;
    color: #1e293b;
    background: #f8fafc;
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }

:root {
    --primary: #0d9488;
    --primary-dark: #0f766e;
    --primary-light: #14b8a6;
    --primary-glow: rgba(13, 148, 136, 0.25);
    --accent-warm: #f59e0b;
    --accent-warm-light: #fbbf24;
    --bg-dark: #0f172a;
    --bg-dark-2: #1e293b;
    --bg-light: #f0fdfa;
    --text-dark: #0f172a;
    --text-muted: #64748b;
    --white: #ffffff;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
    --radius: 16px;
    --radius-sm: 10px;
    --radius-full: 9999px;
}

.container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}
.section-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, rgba(13,148,136,0.1), rgba(13,148,136,0.05));
    color: var(--primary);
    font-size: 0.82rem;
    font-weight: 700;
    padding: 6px 18px;
    border-radius: var(--radius-full);
    letter-spacing: 0.03em;
    border: 1px solid rgba(13,148,136,0.15);
    margin-bottom: 14px;
    text-transform: uppercase;
}
.section-title {
    font-size: clamp(1.6rem, 4vw, 2.3rem);
    font-weight: 800;
    line-height: 1.3;
    color: var(--text-dark);
    margin-bottom: 12px;
}
.section-subtitle {
    font-size: 1.05rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 40px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-family: 'Noto Sans Thai', 'Inter', sans-serif;
    font-weight: 700;
    font-size: 1.05rem;
    padding: 16px 36px;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
    position: relative;
    overflow: hidden;
}
.btn-line {
    background: linear-gradient(135deg, #06c755, #00b74d);
    color: var(--white);
    box-shadow: 0 6px 24px rgba(6,199,85,0.35);
}
.btn-line:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 36px rgba(6,199,85,0.45);
}
.btn-phone {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
    box-shadow: 0 6px 24px var(--primary-glow);
}
.btn-phone:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 36px rgba(13,148,136,0.4);
}
.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255,255,255,0.5);
}
.btn-outline:hover {
    background: rgba(255,255,255,0.15);
    border-color: var(--white);
    transform: translateY(-2px);
}
.btn-warm {
    background: linear-gradient(135deg, var(--accent-warm), #d97706);
    color: var(--white);
    box-shadow: 0 6px 24px rgba(245,158,11,0.35);
}
.btn-warm:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 36px rgba(245,158,11,0.45);
}
.btn-lg {
    padding: 20px 44px;
    font-size: 1.15rem;
    border-radius: 18px;
}

/* Hero */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(165deg, #042f2e 0%, #0f3d3a 30%, #134e4a 60%, #0d3b38 100%);
    overflow: hidden;
    padding: 80px 0 60px;
}
.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -30%;
    width: 80%;
    height: 120%;
    background: radial-gradient(ellipse, rgba(13,148,136,0.2) 0%, transparent 70%);
    pointer-events: none;
}
.hero::after {
    content: '';
    position: absolute;
    bottom: -20%;
    left: -20%;
    width: 60%;
    height: 80%;
    background: radial-gradient(ellipse, rgba(245,158,11,0.08) 0%, transparent 70%);
    pointer-events: none;
}
.hero-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    align-items: center;
    position: relative;
    z-index: 2;
}
.hero-content { text-align: center; }
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(245,158,11,0.15);
    border: 1px solid rgba(245,158,11,0.3);
    color: var(--accent-warm-light);
    font-size: 0.85rem;
    font-weight: 700;
    padding: 8px 20px;
    border-radius: var(--radius-full);
    margin-bottom: 20px;
    animation: fadeInDown 0.8s ease;
}
.hero-brand {
    font-size: clamp(1.4rem, 4vw, 2rem);
    font-weight: 900;
    color: var(--white);
    letter-spacing: -0.02em;
    margin-bottom: 12px;
    animation: fadeInUp 0.8s ease 0.1s both;
}
.hero-title {
    font-size: clamp(1.8rem, 5.5vw, 3rem);
    font-weight: 900;
    color: var(--white);
    line-height: 1.25;
    margin-bottom: 20px;
    animation: fadeInUp 0.8s ease 0.2s both;
}
.hero-title span {
    background: linear-gradient(135deg, var(--accent-warm-light), var(--accent-warm));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-desc {
    font-size: 1.1rem;
    color: rgba(255,255,255,0.75);
    max-width: 520px;
    margin: 0 auto 32px;
    line-height: 1.8;
    animation: fadeInUp 0.8s ease 0.4s both;
}
.hero-ctas {
    display: flex;
    flex-direction: column;
    gap: 14px;
    align-items: center;
    animation: fadeInUp 0.8s ease 0.6s both;
}
.hero-trust {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    justify-content: center;
    margin-top: 36px;
    animation: fadeInUp 0.8s ease 0.8s both;
}
.hero-trust-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: rgba(255,255,255,0.7);
    font-size: 0.9rem;
    font-weight: 500;
}
.hero-trust-item i { color: var(--accent-warm-light); }
.hero-image {
    display: flex;
    justify-content: center;
    animation: fadeInUp 1s ease 0.5s both;
}
.hero-image img {
    width: 100%;
    max-width: 520px;
    border-radius: 24px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.4);
    border: 3px solid rgba(255,255,255,0.1);
}

/* Pricing */
.pricing-section {
    padding: 80px 0;
    background: var(--white);
}
.pricing-section .container { text-align: center; }
.pricing-cards {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    margin-top: 20px;
}
.pricing-card {
    background: var(--white);
    border: 2px solid #e2e8f0;
    border-radius: 20px;
    padding: 36px 28px;
    text-align: center;
    transition: all 0.4s;
    position: relative;
}
.pricing-card.featured {
    border-color: var(--primary);
    box-shadow: 0 8px 40px var(--primary-glow);
}
.pricing-card.featured::before {
    content: 'แนะนำ';
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
    padding: 5px 22px;
    border-radius: var(--radius-full);
    font-size: 0.82rem;
    font-weight: 700;
}
.pricing-card-light {
    border-style: dashed;
    opacity: 0.95;
    background: #f8fafc;
}
.pricing-card:hover {
    border-color: var(--primary);
    box-shadow: 0 8px 40px var(--primary-glow);
}
.pricing-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--text-dark);
}
.pricing-card .price-label {
    font-size: 0.88rem;
    color: var(--text-muted);
    margin-bottom: 16px;
}
.pricing-card .price {
    font-size: 2.4rem;
    font-weight: 900;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 4px;
}
.pricing-card .price-unit {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 24px;
}
.pricing-card ul {
    list-style: none;
    text-align: left;
    margin-bottom: 28px;
}
.pricing-card ul li {
    font-size: 0.93rem;
    padding: 8px 0;
    border-bottom: 1px solid #f1f5f9;
    display: flex;
    align-items: center;
    gap: 10px;
}
.pricing-card ul li:last-child { border-bottom: none; }
.pricing-card ul li i { color: var(--primary); flex-shrink: 0; }
.pricing-note {
    margin-top: 32px;
    padding: 20px;
    background: linear-gradient(135deg, rgba(245,158,11,0.08), rgba(245,158,11,0.03));
    border: 1px solid rgba(245,158,11,0.15);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    color: #92400e;
}
.pricing-note i { color: var(--accent-warm); margin-right: 6px; }

/* Compare */
.compare-section {
    padding: 80px 0;
    background: linear-gradient(180deg, var(--bg-light) 0%, var(--white) 100%);
}
.compare-section .container { text-align: center; }
.compare-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    margin-top: 20px;
}
.compare-card {
    background: var(--white);
    border: 1px solid rgba(13,148,136,0.1);
    border-radius: var(--radius);
    padding: 32px 24px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}
.compare-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}
.compare-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(13,148,136,0.1), rgba(13,148,136,0.05));
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 18px;
    color: var(--primary);
    font-size: 1.5rem;
}
.compare-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
}
.compare-card p {
    font-size: 0.93rem;
    color: var(--text-muted);
    line-height: 1.65;
}

/* Affiliate */
.affiliate-section {
    padding: 64px 0;
    background: var(--white);
}
.affiliate-inner {
    text-align: center;
    padding: 48px 32px;
    border-radius: 24px;
    background: linear-gradient(135deg, #fffbeb, #fef3c7);
    border: 1px solid rgba(245,158,11,0.25);
}
.affiliate-inner .section-title { margin-bottom: 8px; }

/* FAQ */
.faq-section {
    padding: 80px 0;
    background: var(--bg-light);
}
.faq-section .container { text-align: center; }
.faq-list {
    max-width: 700px;
    margin: 20px auto 0;
    text-align: left;
}
.faq-item {
    background: var(--white);
    border: 1px solid #e2e8f0;
    border-radius: var(--radius);
    margin-bottom: 14px;
    overflow: hidden;
}
.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    cursor: pointer;
    font-weight: 700;
    font-size: 1rem;
    gap: 12px;
    user-select: none;
}
.faq-question:hover { color: var(--primary); }
.faq-question i {
    font-size: 0.85rem;
    color: var(--text-muted);
    transition: transform 0.3s;
    flex-shrink: 0;
}
.faq-item.active .faq-question i { transform: rotate(180deg); color: var(--primary); }
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}
.faq-item.active .faq-answer { max-height: 320px; }
.faq-answer-inner {
    padding: 0 24px 20px;
    font-size: 0.93rem;
    color: var(--text-muted);
    line-height: 1.75;
}
.crosslink-note {
    margin-top: 32px;
    font-size: 0.95rem;
    color: var(--text-muted);
}
.crosslink-note a {
    color: var(--primary);
    font-weight: 700;
    text-decoration: underline;
}

/* Final CTA */
.final-cta {
    padding: 80px 0;
    background: linear-gradient(165deg, #042f2e 0%, #134e4a 50%, #0f3d3a 100%);
    position: relative;
    overflow: hidden;
}
.final-cta .container {
    text-align: center;
    position: relative;
    z-index: 2;
}
.final-cta .section-title {
    color: var(--white);
    font-size: clamp(1.6rem, 4.5vw, 2.4rem);
}
.final-cta .section-subtitle {
    color: rgba(255,255,255,0.65);
    margin-bottom: 36px;
}
.final-cta-buttons {
    display: flex;
    flex-direction: column;
    gap: 14px;
    align-items: center;
    margin-bottom: 40px;
}
.final-cta-info {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    justify-content: center;
}
.final-cta-info-item {
    display: flex;
    align-items: center;
    gap: 10px;
    color: rgba(255,255,255,0.7);
    font-size: 0.92rem;
}
.final-cta-info-item i { color: var(--accent-warm-light); }
.urgency-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(245,158,11,0.15);
    border: 1px solid rgba(245,158,11,0.35);
    color: var(--accent-warm-light);
    font-size: 0.88rem;
    font-weight: 700;
    padding: 10px 24px;
    border-radius: var(--radius-full);
    margin-bottom: 28px;
}

.footer {
    padding: 28px 0;
    background: #020617;
    text-align: center;
}
.footer p {
    font-size: 0.82rem;
    color: rgba(255,255,255,0.35);
    margin-bottom: 8px;
}
.footer-links a {
    color: rgba(255,255,255,0.5);
}
.footer-links a:hover { color: var(--primary-light); }

.floating-buttons {
    position: fixed;
    bottom: 24px;
    right: 20px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.float-btn {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: var(--white);
    box-shadow: 0 6px 24px rgba(0,0,0,0.25);
    transition: all 0.3s;
}
.float-btn:hover { transform: scale(1.12); }
.float-btn-line { background: linear-gradient(135deg, #06c755, #00b74d); }
.float-btn-phone {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    animation: pulse-ring 2.5s infinite;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes pulse-ring {
    0% { box-shadow: 0 0 0 0 rgba(13,148,136,0.5); }
    70% { box-shadow: 0 0 0 14px rgba(13,148,136,0); }
    100% { box-shadow: 0 0 0 0 rgba(13,148,136,0); }
}
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

@media (min-width: 640px) {
    .compare-grid { grid-template-columns: repeat(2, 1fr); }
    .pricing-cards { grid-template-columns: repeat(2, 1fr); }
    .hero-ctas { flex-direction: row; justify-content: center; }
    .final-cta-buttons { flex-direction: row; justify-content: center; }
}
@media (min-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr 1fr;
        gap: 60px;
    }
    .hero-content { text-align: left; }
    .hero-desc { margin: 0 0 32px; }
    .hero-ctas { justify-content: flex-start; }
    .hero-trust { justify-content: flex-start; }
    .compare-grid { grid-template-columns: repeat(4, 1fr); }
    .pricing-cards { grid-template-columns: repeat(3, 1fr); }
    .pricing-card.featured { transform: scale(1.04); }
}