/* ===========================
   MR.BOX GALVANIZED - Styles
   =========================== */

/* --- Variables --- */
:root {
    --primary: #1a3a5c;
    --primary-light: #2a5a8c;
    --primary-dark: #0d2137;
    --accent: #f0a500;
    --accent-light: #ffc94d;
    --accent-dark: #c78500;
    --galvanized: #a8b8c8;
    --galvanized-light: #c8d4e0;
    --galvanized-dark: #708090;
    --white: #ffffff;
    --gray-50: #f8f9fa;
    --gray-100: #f0f2f5;
    --gray-200: #e2e5ea;
    --gray-300: #cdd2d9;
    --gray-400: #9ba3b0;
    --gray-500: #6b7580;
    --gray-600: #4a5058;
    --gray-700: #373c42;
    --gray-800: #2a2e33;
    --gray-900: #1a1d21;
    --success: #28a745;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-md: 0 8px 24px rgba(0,0,0,0.12);
    --shadow-lg: 0 16px 48px rgba(0,0,0,0.15);
    --radius-sm: 6px;
    --radius: 12px;
    --radius-lg: 20px;
    --radius-xl: 30px;
    --transition: 0.3s ease;
    --font-thai: 'Noto Sans Thai', sans-serif;
    --font-display: 'Oswald', sans-serif;
}

/* --- Reset & Base --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-thai);
    color: var(--gray-800);
    background: var(--white);
    line-height: 1.7;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* --- Utilities --- */
.text-left { text-align: left !important; }
.text-accent { color: var(--accent); }

/* --- Navbar --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: transparent;
    padding: 20px 0;
    transition: all var(--transition);
}

.navbar.scrolled {
    background: var(--white);
    padding: 8px 0;
    box-shadow: var(--shadow);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-logo-img {
    height: 80px;
    width: 80px;
    object-fit: contain;
}

.logo-mr {
    font-family: var(--font-display);
    font-size: 36px;
    font-weight: 700;
    color: var(--accent);
}

.logo-box {
    font-family: var(--font-display);
    font-size: 36px;
    font-weight: 700;
    color: var(--white);
}

.navbar.scrolled .logo-box {
    color: var(--primary);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 8px;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: rgba(255,255,255,0.85);
    font-weight: 600;
    font-size: 18px;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.nav-link:hover {
    color: var(--white);
    background: rgba(255,255,255,0.15);
}

.navbar.scrolled .nav-link {
    color: var(--gray-600);
}

.navbar.scrolled .nav-link:hover {
    color: var(--primary);
    background: var(--gray-100);
}

.nav-link-cta {
    background: var(--accent) !important;
    color: var(--primary-dark) !important;
    font-weight: 700 !important;
    border-radius: var(--radius-sm) !important;
}

.nav-link-cta:hover {
    background: var(--accent-light) !important;
    transform: translateY(-1px);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2.5px;
    background: var(--white);
    border-radius: 2px;
    transition: all var(--transition);
}

.navbar.scrolled .nav-toggle span {
    background: var(--primary);
}

/* --- Hero --- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: url('%E0%B8%A0%E0%B8%B2%E0%B8%9E/%E0%B8%9B%E0%B8%81%E0%B9%80%E0%B8%A7%E0%B9%87%E0%B8%9A.png?v=2') center center / cover no-repeat;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(13, 33, 55, 0.45);
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, rgba(13,33,55,0.15) 0%, rgba(13,33,55,0.45) 100%);
}

.hero-content {
    position: relative;
    text-align: center;
    padding: 120px 32px 80px;
    max-width: 1100px;
    margin: 0 auto;
}

.hero-subtitle {
    font-size: clamp(48px, 8vw, 96px);
    color: var(--white);
    margin-bottom: 8px;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 800;
    line-height: 1.2;
    text-shadow: 0 2px 20px rgba(0,0,0,0.3);
    letter-spacing: -1px;
}

.hero-feature {
    color: var(--accent-light);
    font-size: clamp(24px, 4vw, 48px);
    font-weight: 700;
    text-align: center;
    margin-bottom: 40px;
    text-shadow: 0 1px 10px rgba(0,0,0,0.2);
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: rgba(255,255,255,0.5);
    font-size: 12px;
    animation: bounce 2s infinite;
}

.scroll-arrow {
    width: 24px;
    height: 24px;
    border-right: 2px solid rgba(255,255,255,0.4);
    border-bottom: 2px solid rgba(255,255,255,0.4);
    transform: rotate(45deg);
    margin: 8px auto 0;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(10px); }
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: var(--radius-sm);
    font-family: var(--font-thai);
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all var(--transition);
    line-height: 1.4;
}

.btn-primary {
    background: var(--accent);
    color: var(--primary-dark);
    border-color: var(--accent);
}

.btn-primary:hover {
    background: var(--accent-light);
    border-color: var(--accent-light);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(240,165,0,0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border-color: rgba(255,255,255,0.3);
}

.btn-secondary:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.6);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border-color: var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-2px);
}

.btn-sm {
    padding: 10px 24px;
    font-size: 14px;
}

.btn-full {
    width: 100%;
}

/* --- Section Headers --- */
.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-tag {
    display: inline-block;
    background: rgba(240,165,0,0.1);
    color: var(--accent-dark);
    padding: 4px 16px;
    border-radius: var(--radius-xl);
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 12px;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(28px, 4vw, 42px);
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 12px;
    letter-spacing: -0.5px;
}

.about-heading {
    font-family: var(--font-thai);
    font-size: clamp(28px, 4vw, 42px);
    color: var(--primary);
    margin-bottom: 12px;
    letter-spacing: -0.5px;
}

.section-desc {
    font-size: 16px;
    color: var(--gray-500);
    max-width: 560px;
    margin: 0 auto;
}

.contact-desc {
    font-size: 20px;
    color: var(--gray-600);
}

/* --- About --- */
.about {
    padding: 96px 0;
    background: var(--white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 48px;
    align-items: center;
}

.about-text {
    font-size: 16px;
    color: var(--gray-600);
    margin-bottom: 32px;
    line-height: 1.8;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.about-feature {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.about-feature-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background: rgba(240,165,0,0.1);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-dark);
}

.about-feature h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 4px;
}

.about-feature p {
    font-size: 14px;
    color: var(--gray-500);
    line-height: 1.6;
}

/* --- About Slideshow --- */
.about-slideshow {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius);
    height: 100%;
    min-height: 280px;
    max-height: 380px;
    border: 6px solid var(--accent);
    box-shadow: 0 8px 32px rgba(0,0,0,0.3), inset 0 0 0 2px rgba(255,255,255,0.1);
}

.slideshow-track {
    display: flex;
    width: 400%;
    height: 100%;
    animation: slideshow 16s ease-in-out infinite;
}

.slideshow-slide {
    width: 25%;
    height: 100%;
    flex-shrink: 0;
}

.slideshow-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

@keyframes slideshow {
    0%, 20% { transform: translateX(0); }
    25%, 45% { transform: translateX(-25%); }
    50%, 70% { transform: translateX(-50%); }
    75%, 95% { transform: translateX(-75%); }
    100% { transform: translateX(0); }
}

/* --- Price List --- */
.price-list {
    padding: 96px 0;
    background: var(--primary);
}

.price-list .section-title {
    color: var(--white);
}

.price-list .section-desc {
    color: rgba(255,255,255,0.6);
}

.price-list .section-tag {
    background: rgba(240,165,0,0.2);
    color: var(--accent-light);
}

.price-header {
    margin-bottom: 24px;
}

.price-header .section-tag {
    margin-bottom: 8px;
}

.price-header .about-heading {
    margin-bottom: 0;
}

.price-promo {
    text-align: center;
    font-size: clamp(20px, 3vw, 28px);
    color: var(--accent);
    font-weight: 700;
    margin-bottom: 24px;
    text-decoration: underline;
    text-underline-offset: 4px;
}

.price-image-container {
    display: flex;
    justify-content: center;
    padding: 20px 0;
}

.price-image {
    max-width: 700px;
    width: 100%;
    height: auto;
    border-radius: var(--radius);
    box-shadow: 0 8px 32px rgba(0,0,0,0.2);
}

/* --- Contact --- */
.contact {
    padding: 96px 0;
    background: var(--gray-50);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 48px;
    align-items: center;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 16px;
    max-width: 500px;
}

.contact-card {
    background: var(--white);
    padding: 18px 20px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    transition: transform var(--transition), box-shadow var(--transition);
}

.contact-card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow);
}

.contact-icon {
    width: 44px;
    height: 44px;
    background: rgba(240,165,0,0.1);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--accent-dark);
}

.facebook-icon {
    background: rgba(66,103,178,0.1) !important;
    color: #4267B2 !important;
}

.facebook-card {
    text-decoration: none;
    cursor: pointer;
    transition: transform var(--transition), box-shadow var(--transition);
}

.facebook-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(66,103,178,0.2);
}

.facebook-link {
    font-size: 14px;
    color: #4267B2;
    font-weight: 500;
}

.facebook-card:hover .facebook-link {
    text-decoration: underline;
}

.map-card {
    text-decoration: none;
    cursor: pointer;
    transition: transform var(--transition), box-shadow var(--transition);
}

.map-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(240,165,0,0.2);
}

.contact-card h4 {
    font-size: 15px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 4px;
}

.contact-card p {
    font-size: 14px;
    color: var(--gray-600);
}

.contact-qr {
    display: flex;
    align-items: center;
    justify-content: center;
}

.qr-image {
    max-width: 340px;
    width: 100%;
    height: auto;
    border-radius: var(--radius);
    box-shadow: 0 4px 16px rgba(0,0,0,0.15);
    border: 4px solid var(--accent);
}

/* --- Footer --- */
.footer {
    background: var(--gray-900);
    padding: 60px 0 0;
    color: var(--gray-400);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand .logo {
    margin-bottom: 16px;
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.7;
    color: var(--gray-500);
}

.footer-brand .logo-mr {
    font-size: 32px;
}

.footer-brand .logo-box {
    color: var(--white);
    font-size: 32px;
}

.footer h4 {
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 16px;
    letter-spacing: 0.5px;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: var(--gray-500);
    text-decoration: none;
    font-size: 14px;
    transition: color var(--transition);
}

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

.footer-contact p {
    font-size: 14px;
    margin-bottom: 8px;
    color: var(--gray-500);
}

.footer-bottom {
    padding: 24px 0;
    text-align: center;
    font-size: 13px;
    color: var(--gray-600);
}

/* --- Back to Top --- */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 44px;
    height: 44px;
    background: var(--accent);
    color: var(--primary-dark);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    text-decoration: none;
    box-shadow: var(--shadow);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition);
    z-index: 100;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--accent-light);
    transform: translateY(-3px);
}

/* --- Animations --- */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in-up {
    opacity: 0;
    animation: fadeInUp 0.6s ease forwards;
}

.fade-in-up.visible {
    animation: fadeInUp 0.6s ease forwards;
}

/* --- Responsive: Tablet (max-width: 1024px) --- */
@media (max-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
}

/* --- Responsive: Mobile (max-width: 768px) --- */
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        padding: 80px 24px 24px;
        gap: 4px;
        box-shadow: var(--shadow-lg);
        transition: right var(--transition);
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-menu .nav-link {
        color: var(--gray-700);
        padding: 12px 16px;
        width: 100%;
    }

    .nav-menu .nav-link:hover {
        background: var(--gray-100);
        color: var(--primary);
    }

    .nav-menu .nav-link-cta {
        margin-top: 12px;
        text-align: center;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translateY(10px);
        background: var(--primary);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translateY(-10px);
        background: var(--primary);
    }

    .hero-content {
        padding: 100px 16px 80px;
    }

    .hero-subtitle {
        font-size: clamp(28px, 7vw, 48px);
    }

    .hero-feature {
        font-size: clamp(18px, 4.5vw, 28px);
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .contact-qr {
        order: -1;
    }

    .qr-image {
        max-width: 200px;
    }

    .contact-info {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }

    .price-image {
        max-width: 95%;
    }

    .navbar.scrolled .nav-toggle span {
        background: var(--primary);
    }
}

/* --- Responsive: Small Mobile (max-width: 480px) --- */
@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 280px;
    }
}