/* Core Variables & Branding Design System */
:root {
    --color-primary: #0A2A55; /* Deep Navy */
    --color-primary-hover: #081F40;
    --color-primary-light: #EEF1F6; /* Soft Blue-Gray background */
    --color-secondary: #B8973F; /* Bronze Gold Accent */
    --color-secondary-hover: #9C7F2E;
    --color-secondary-light: rgba(184, 151, 63, 0.1); /* Faint bronze tint for chips/badges */
    --color-dark: #1A202C; /* Rich charcoal text */
    --color-gray: #4A5568; /* Light gray body text */
    --color-border: #E2E8F0; /* Clean border line */
    --color-white: #FEFCF8; /* Warm ivory white */

    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Montserrat', sans-serif; /* Keep same font family for consistency and premium clean look */

    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-full: 9999px;

    --shadow-sm: 0 1px 3px rgba(10, 37, 69, 0.06);
    --shadow-md: 0 4px 18px rgba(10, 37, 69, 0.08);
    --shadow-lg: 0 10px 28px rgba(10, 37, 69, 0.12);

    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    background-color: var(--color-white);
    background-image:
        radial-gradient(circle at 12% 15%, rgba(10, 42, 85, 0.06), transparent 38%),
        radial-gradient(circle at 88% 55%, rgba(184, 151, 63, 0.07), transparent 35%),
        radial-gradient(circle at 20% 90%, rgba(10, 42, 85, 0.05), transparent 32%);
    background-attachment: fixed;
    color: var(--color-dark);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Scrollbar customization */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #F1F5F9;
}
::-webkit-scrollbar-thumb {
    background: #CBD5E1;
    border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary);
}

/* Typography & Global Components */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.3;
}

a {
    color: inherit;
    text-decoration: none;
}

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

.section {
    padding: 80px 0;
    position: relative;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 50px auto;
}

.section-tag {
    display: inline-block;
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    padding: 6px 16px;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    margin-bottom: 12px;
}

.section-title {
    font-size: 2.25rem;
    margin-bottom: 16px;
    color: var(--color-primary);
}

.section-subtitle {
    color: var(--color-gray);
    font-size: 1rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.9rem;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-white);
    box-shadow: 0px 2px 8px rgba(10, 42, 85, 0.10);
}
.btn-primary:hover {
    background-color: var(--color-primary-hover);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: var(--color-white);
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}
.btn-secondary:hover {
    background-color: var(--color-primary-light);
    transform: translateY(-2px);
}

.btn-call-now {
    background-color: var(--color-secondary);
    color: var(--color-dark);
    box-shadow: 0px 2px 8px rgba(184, 151, 63, 0.10);
}
.btn-call-now:hover {
    background-color: var(--color-secondary-hover);
    transform: translateY(-2px);
}

/* Top Info Bar */
.top-info-bar {
    background-color: #082A7C;
    color: var(--color-white);
    font-size: 0.8rem;
    font-weight: 500;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.top-info-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 24px;
}

.top-info-left {
    display: flex;
    gap: 24px;
}

.top-info-left span {
    display: flex;
    align-items: center;
    gap: 6px;
}

.top-icon {
    width: 14px;
    height: 14px;
    opacity: 0.8;
}

.hotline-highlight {
    background-color: transparent;
    border: 1px solid rgba(184, 151, 63, 0.5);
    color: var(--color-secondary);
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 4px;
}

/* Header Navigation */
.main-header {
    position: sticky;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 24px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--color-primary);
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.brand-name {
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--color-primary);
    letter-spacing: 0.5px;
}

.brand-sub {
    font-size: 0.65rem;
    font-weight: 700;
    color: var(--color-gray);
    letter-spacing: 1px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 28px;
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-dark);
    position: relative;
    padding: 6px 0;
    transition: color var(--transition-fast);
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: width var(--transition-fast);
}

.nav-link.active {
    color: var(--color-primary);
}

.nav-link.active::after {
    width: 100%;
}

/* Dropdown Menu Styles */
.nav-item {
    position: relative;
    list-style: none;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background-color: #FFFFFF;
    box-shadow: 0px 4px 16px rgba(10, 42, 85, 0.10);
    border-radius: var(--radius-md);
    padding: 10px 0;
    min-width: 280px;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 100;
    border: 1px solid var(--color-border);
}

.dropdown-menu::before {
    content: '';
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    border-width: 8px;
    border-style: solid;
    border-color: transparent transparent #FFFFFF transparent;
}

.dropdown-menu li {
    list-style: none;
}

.dropdown-menu a {
    display: block;
    padding: 10px 20px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-dark);
    transition: all var(--transition-fast);
}

.dropdown-menu a:hover {
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    padding-left: 24px;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.nav-btn {
    display: inline-flex;
    background-color: var(--color-secondary);
    color: var(--color-dark);
    font-weight: 700;
    padding: 10px 20px;
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    box-shadow: 0px 2px 6px rgba(184, 151, 63, 0.10);
    transition: all var(--transition-fast);
}

.nav-btn:hover {
    background-color: var(--color-secondary-hover);
    transform: translateY(-1px);
    box-shadow: 0px 3px 8px rgba(184, 151, 63, 0.10);
}

/* Mobile Toggle */
.mobile-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 1001;
}

.mobile-toggle span {
    width: 100%;
    height: 2px;
    background-color: var(--color-primary);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

/* Mobile Drawer */
.mobile-drawer {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background-color: var(--color-white);
    box-shadow: -10px 0px 16px rgba(10, 42, 85, 0.10);
    z-index: 999;
    padding: 100px 32px 32px 32px;
    transition: right var(--transition-normal);
}

.mobile-drawer.open {
    right: 0;
}

.mobile-nav {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.mobile-link {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-dark);
}

.mobile-link:hover {
    color: var(--color-primary);
}

.mobile-btn {
    text-align: center;
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 12px;
    border-radius: var(--radius-md);
    font-weight: 700;
}

/* Hero Section */
.hero-section {
    position: relative;
    padding: 100px 0;
    background: #001a4d;
    display: flex;
    align-items: center;
    min-height: 80vh;
    overflow: hidden;
}

/* Hero Background Carousel */
.hero-carousel {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1.2s ease-in-out;
}

.hero-carousel-slide.active {
    opacity: 1;
}

.hero-bg-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.045) 0, rgba(255, 255, 255, 0.045) 1px, transparent 1px, transparent 16px),
        linear-gradient(135deg, rgba(10, 42, 85, 0.95) 50%, rgba(10, 42, 85, 0.7) 100%);
    z-index: 1;
}

.hero-container {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 50px;
    align-items: center;
}

.hero-left-content {
    color: var(--color-white);
    animation: heroFadeUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.hero-badge {
    display: inline-block;
    color: var(--color-secondary);
    font-weight: 700;
    font-size: 0.9rem;
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.hero-title {
    font-size: 3.25rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 24px;
    letter-spacing: -0.5px;
}

.hero-desc {
    font-size: 1.05rem;
    opacity: 0.9;
    margin-bottom: 30px;
    line-height: 1.6;
}

.hero-features {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 36px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95rem;
    font-weight: 500;
}

.check-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: var(--color-secondary);
    color: var(--color-dark);
    font-weight: 800;
}

.check-icon svg {
    width: 11px;
    height: 11px;
    stroke-width: 3;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* Consultation Form Card */
.hero-form-card {
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 36px;
    box-shadow: var(--shadow-lg);
    color: var(--color-dark);
    animation: heroFadeUp 0.8s 0.15s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes heroFadeUp {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
}

.hero-form-card h3 {
    font-size: 1.4rem;
    color: var(--color-primary);
    margin-bottom: 10px;
    text-align: center;
}

.hero-form-card p {
    font-size: 0.85rem;
    color: var(--color-gray);
    text-align: center;
    margin-bottom: 24px;
    line-height: 1.4;
}

.form-group {
    margin-bottom: 16px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 16px;
    color: var(--color-dark);
    transition: all var(--transition-fast);
}

.form-group input:focus, 
.form-group select:focus, 
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0px 0px 3px 2px rgba(10, 42, 85, 0.10);
}

.btn-submit-lead {
    width: 100%;
    background-color: var(--color-secondary);
    color: var(--color-dark);
    font-weight: 800;
    box-shadow: 0px 2px 7px rgba(184, 151, 63, 0.10);
}
.btn-submit-lead:hover {
    background-color: var(--color-secondary-hover);
    transform: scale(1.02);
}

/* Core Values Section */
.values-section {
    background-color: var(--color-primary);
    background-image: repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.035) 0, rgba(255, 255, 255, 0.035) 1px, transparent 1px, transparent 18px);
    padding: 40px 0;
    position: relative;
    z-index: 5;
    margin-top: -30px;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    overflow: hidden;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
}

.value-card {
    color: var(--color-white);
    text-align: center;
    padding: 20px;
    border-right: 1px solid rgba(255,255,255,0.1);
}

.value-card:last-child {
    border-right: none;
}

.value-icon-circle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    margin-bottom: 14px;
    border: 1px solid rgba(184, 151, 63, 0.4);
    border-radius: 50%;
    color: var(--color-secondary);
}

.value-icon-circle svg {
    width: 24px;
    height: 24px;
}

.value-card h4 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-secondary);
    margin-bottom: 8px;
}

.value-card p {
    font-size: 0.85rem;
    opacity: 0.8;
}

/* About Section */
.about-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-p {
    color: var(--color-gray);
    margin-bottom: 30px;
    font-size: 1rem;
}

.about-stats {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}

.stat-box {
    flex: 1;
    background-color: var(--color-primary-light);
    border-radius: var(--radius-md);
    padding: 16px;
    text-align: center;
    border: 1px solid rgba(10, 42, 85, 0.05);
}

.stat-num {
    display: block;
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: 4px;
}

.stat-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-gray);
}

.about-img-frame {
    position: relative;
    padding-bottom: 20px;
}

.about-img {
    width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    object-fit: cover;
    height: 380px;
}

.about-floating-badge {
    position: absolute;
    bottom: -10px;
    right: 20px;
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 20px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    max-width: 260px;
}

.about-floating-badge h5 {
    color: var(--color-secondary);
    font-size: 1rem;
    margin-bottom: 4px;
}

.about-floating-badge p {
    font-size: 0.75rem;
    opacity: 0.8;
}

/* Services Section */
.services-section {
    background-color: #F8FAFC;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 30px;
}

.service-card {
    background-color: var(--color-white);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 30px;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
}

.service-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    margin-bottom: 20px;
    background-color: var(--color-primary-light);
    border-radius: var(--radius-md);
    color: var(--color-primary);
}

.service-icon svg {
    width: 26px;
    height: 26px;
}

.service-card h3 {
    font-size: 1.25rem;
    color: var(--color-primary);
    margin-bottom: 12px;
}

.service-card p {
    font-size: 0.85rem;
    color: var(--color-gray);
    line-height: 1.5;
    margin-bottom: 24px;
    flex-grow: 1;
}

.service-btn {
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--color-primary);
    display: flex;
    align-items: center;
    gap: 6px;
    transition: color var(--transition-fast);
}

.service-btn:hover {
    color: var(--color-secondary-hover);
}

/* Interactive Calculator Section */
.calc-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.calc-p {
    color: var(--color-gray);
    margin-bottom: 30px;
}

.calc-result-box {
    background-color: var(--color-primary-light);
    border-radius: var(--radius-lg);
    padding: 32px;
    border: 2px solid rgba(10, 42, 85, 0.08);
}

.calc-result-box h4 {
    font-size: 1.2rem;
    color: var(--color-primary);
    margin-bottom: 20px;
}

.result-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.95rem;
    margin-bottom: 12px;
    align-items: center;
}

.security-level-badge {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
}

.security-level-badge.level-high {
    background-color: #EF4444;
}

.security-level-badge.level-mid {
    background-color: #F59E0B;
}

.calc-divider {
    border: none;
    border-top: 1px dashed rgba(10, 42, 85, 0.15);
    margin: 16px 0;
}

.total-cost-row {
    font-size: 1.1rem;
    color: var(--color-dark);
}

.total-cost-row strong {
    font-size: 1.3rem;
    color: var(--color-primary);
}

.btn-apply-calc {
    width: 100%;
    margin-top: 20px;
    background-color: var(--color-primary);
    color: var(--color-white);
    font-weight: 700;
    box-shadow: 0px 2px 6px rgba(10, 42, 85, 0.10);
}
.btn-apply-calc:hover {
    background-color: var(--color-primary-hover);
}

.calc-card {
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
}

.calc-card h3 {
    font-size: 1.4rem;
    color: var(--color-primary);
    margin-bottom: 24px;
    text-align: center;
}

.radio-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 6px;
}

.radio-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    cursor: pointer;
    font-weight: 500;
}

.input-helper {
    font-size: 0.75rem;
    color: var(--color-gray);
    margin-top: -2px;
}

/* Gallery Section */
.gallery-section {
    background-color: #0a1628;
    padding-bottom: 0;
}

.gallery-section .section-tag {
    color: #B8973F;
    border-color: rgba(184, 151, 63,0.3);
}

.gallery-section .section-title {
    color: #ffffff;
}

.gallery-section .section-subtitle {
    color: rgba(255,255,255,0.7);
}

/* Carousel Wrapper */
.gallery-carousel-wrapper {
    position: relative;
    width: 100%;
    max-width: 1400px;
    overflow: hidden;
    margin: 48px auto 0;
    background: #000;
    border-radius: 10px;
}

.gallery-carousel-track {
    display: flex;
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    will-change: transform;
}

.gallery-slide {
    min-width: 100%;
    position: relative;
    height: 520px;
    overflow: hidden;
    flex-shrink: 0;
}

.gallery-slide-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.8s ease;
    filter: brightness(0.85);
}

.gallery-slide.active .gallery-slide-img {
    filter: brightness(1);
    transform: scale(1.02);
}

.gallery-slide-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 28px 40px;
    background: linear-gradient(transparent, rgba(0,0,0,0.85));
    color: #fff;
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.3px;
    line-height: 1.5;
    transform: translateY(10px);
    opacity: 0;
    transition: all 0.5s ease 0.2s;
}

.gallery-slide.active .gallery-slide-caption {
    transform: translateY(0);
    opacity: 1;
}

/* Carousel Navigation Buttons */
.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(8px);
    border: 2px solid rgba(255,255,255,0.3);
    color: #fff;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    z-index: 10;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.carousel-btn:hover {
    background: #B8973F;
    border-color: #B8973F;
    transform: translateY(-50%) scale(1.1);
    box-shadow: 0px 0px 11px rgba(184, 151, 63, 0.10);
}

.carousel-prev { left: 20px; }
.carousel-next { right: 20px; }

/* Carousel Dots */
.carousel-dots {
    position: absolute;
    bottom: 18px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

.carousel-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255,255,255,0.4);
    border: none;
    cursor: pointer;
    padding: 0;
    transition: all 0.3s ease;
}

.carousel-dot.active {
    background: #B8973F;
    width: 28px;
    border-radius: 5px;
    box-shadow: 0px 0px 4px rgba(184, 151, 63, 0.10);
}

/* Mobile responsive */
@media (max-width: 768px) {
    .gallery-slide {
        height: 280px;
    }
    .gallery-slide-caption {
        font-size: 0.88rem;
        padding: 20px 20px;
    }
    .carousel-btn {
        width: 38px;
        height: 38px;
        font-size: 1rem;
    }
    .carousel-prev { left: 10px; }
    .carousel-next { right: 10px; }
}

/* Lightbox Modal */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1100;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal);
}

.lightbox.open {
    opacity: 1;
    pointer-events: auto;
}

.lightbox-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.lightbox-content {
    position: relative;
    z-index: 2;
    max-width: 80%;
    max-height: 80%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 70vh;
    border-radius: var(--radius-sm);
    box-shadow: 0px 4px 22px rgba(10, 42, 85, 0.10);
    object-fit: contain;
}

.lightbox-caption {
    color: var(--color-white);
    margin-top: 16px;
    font-size: 0.95rem;
    font-weight: 600;
    text-align: center;
}

.lightbox-close {
    position: absolute;
    top: -40px;
    right: 0;
    background: transparent;
    border: none;
    color: var(--color-white);
    font-size: 2rem;
    cursor: pointer;
}

/* Contact Section */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.contact-p {
    color: var(--color-gray);
    margin-bottom: 30px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.contact-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    background-color: var(--color-primary-light);
    border-radius: var(--radius-md);
    color: var(--color-primary);
}

.contact-icon svg {
    width: 20px;
    height: 20px;
}

.contact-item h5 {
    font-size: 1rem;
    color: var(--color-primary);
    margin-bottom: 4px;
}

.contact-item p {
    font-size: 0.9rem;
    color: var(--color-gray);
}

.contact-form-card {
    background-color: var(--color-white);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-md);
}

.contact-form-card h3 {
    font-size: 1.4rem;
    color: var(--color-primary);
    margin-bottom: 8px;
}

.contact-form-card p {
    font-size: 0.85rem;
    color: var(--color-gray);
    margin-bottom: 24px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.btn-submit-contact {
    width: 100%;
    background-color: var(--color-primary);
    color: var(--color-white);
    font-weight: 700;
    box-shadow: 0px 2px 8px rgba(10, 42, 85, 0.10);
}
.btn-submit-contact:hover {
    background-color: var(--color-primary-hover);
}

/* Success Modal */
.success-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1200;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal);
}

.success-modal.open {
    opacity: 1;
    pointer-events: auto;
}

.success-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
}

.success-content {
    position: relative;
    z-index: 2;
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 40px;
    width: 90%;
    max-width: 450px;
    text-align: center;
    box-shadow: var(--shadow-lg);
    transform: scale(0.9);
    transition: transform var(--transition-normal);
}

.success-modal.open .success-content {
    transform: scale(1);
}

.success-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: #DEF7EC;
    color: #0E9F6E;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    margin-bottom: 20px;
}

.success-icon svg {
    width: 28px;
    height: 28px;
}

.success-content h3 {
    font-size: 1.4rem;
    color: var(--color-primary);
    margin-bottom: 12px;
}

.success-content p {
    font-size: 0.9rem;
    color: var(--color-gray);
    margin-bottom: 24px;
    line-height: 1.5;
}

.btn-success-close {
    background-color: var(--color-primary);
    color: var(--color-white);
    width: 100%;
    font-weight: 700;
}

/* Footer Section */
.main-footer {
    background-color: #0E1624;
    color: var(--color-white);
    padding: 80px 0 24px 0;
}

.footer-container {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1.2fr;
    gap: 60px;
    margin-bottom: 50px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.footer-logo-img {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 2px solid var(--color-secondary);
}

.footer-brand h4 {
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--color-white);
    letter-spacing: 0.5px;
}

.footer-desc {
    font-size: 0.85rem;
    opacity: 0.7;
    margin-bottom: 20px;
    line-height: 1.6;
}

.footer-legal p {
    font-size: 0.8rem;
    opacity: 0.7;
    margin-bottom: 4px;
}

.footer-center h4, 
.footer-right h4 {
    font-size: 1.1rem;
    margin-bottom: 24px;
    border-left: 3px solid var(--color-secondary);
    padding-left: 10px;
}

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

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    font-size: 0.85rem;
    opacity: 0.7;
    transition: color var(--transition-fast), opacity var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-secondary);
    opacity: 1;
}

.footer-right p {
    font-size: 0.85rem;
    opacity: 0.7;
    margin-bottom: 12px;
}

.footer-alert-box {
    background-color: rgba(184, 151, 63, 0.1);
    border: 1px solid rgba(184, 151, 63, 0.3);
    padding: 14px;
    border-radius: var(--radius-md);
    font-size: 0.8rem;
    color: var(--color-secondary);
    margin-top: 20px;
    line-height: 1.5;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.05);
    padding-top: 24px;
    text-align: center;
    font-size: 0.75rem;
    opacity: 0.5;
}

/* Floating Hotline */
.floating-hotline {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 999;
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
}

.phone-ring-wave {
    position: absolute;
    top: 0;
    left: 0;
    width: 60px;
    height: 60px;
    background-color: var(--color-secondary);
    border-radius: 50%;
    opacity: 0.3;
    animation: ringWave 1.8s infinite ease-out;
}

.phone-icon-circle {
    position: relative;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--color-secondary);
    color: var(--color-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0px 2px 9px rgba(184, 151, 63, 0.10);
    transition: transform var(--transition-fast);
}

.floating-phone-svg {
    width: 26px;
    height: 26px;
    stroke: var(--color-dark);
    fill: var(--color-dark);
}

.floating-phone-label {
    position: absolute;
    top: 50%;
    right: 72px;
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 8px 16px;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 700;
    box-shadow: var(--shadow-md);
    white-space: nowrap;
    opacity: 0;
    transform: translateY(-50%) translateX(10px);
    transition: opacity var(--transition-fast), transform var(--transition-fast);
    pointer-events: none;
}

.floating-hotline:hover .floating-phone-label {
    opacity: 1;
    transform: translateY(-50%) translateX(0);
}

.floating-hotline:hover .phone-icon-circle {
    transform: scale(1.05);
}

@keyframes ringWave {
    0% { transform: scale(1); opacity: 0.4; }
    100% { transform: scale(1.6); opacity: 0; }
}

/* Responsiveness overrides */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .about-container, 
    .calc-container, 
    .contact-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .footer-container {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 15px;
    }
    .main-header .nav-menu {
        display: none;
    }
    .mobile-toggle {
        display: flex;
    }
    .top-info-left {
        display: none;
    }
    .top-info-container {
        justify-content: center;
    }
    .value-card {
        border-right: none;
        border-bottom: 1px solid rgba(255,255,255,0.1);
        padding-bottom: 24px;
    }
    .value-card:last-child {
        border-bottom: none;
    }
    .footer-container {
        grid-template-columns: 1fr;
    }
    .form-row {
        grid-template-columns: 1fr;
    }

    .section {
        padding: 56px 0;
    }
    .section-title {
        font-size: 1.6rem;
    }

    .hero-section {
        padding: 50px 0 44px;
        min-height: auto;
    }
    .hero-title {
        font-size: 2rem;
    }
    .hero-actions {
        flex-direction: column;
    }
    .hero-actions .btn {
        width: 100%;
    }
    .hero-form-card {
        padding: 24px;
    }

    .about-stats {
        flex-direction: column;
    }
    .about-floating-badge {
        padding: 14px 16px;
        max-width: 200px;
    }
}

/* ==========================================
   SCROLL REVEAL ANIMATION
   ========================================== */
.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1), transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ==========================================
   FORM SHAKE ERROR ANIMATION
   ========================================== */
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20% { transform: translateX(-8px); }
    40% { transform: translateX(8px); }
    60% { transform: translateX(-5px); }
    80% { transform: translateX(5px); }
}

.shake-error {
    animation: shake 0.5s ease;
}

/* Extra focus/input polish */
.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #A0AEC0;
    font-size: 0.85rem;
}

.form-group select {
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%234A5568' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    background-size: 14px;
    padding-right: 40px;
}

/* ==========================================
   ICON SYSTEM (SVG sprite icons)
   ========================================== */
svg.icon-svg {
    fill: none;
    stroke: currentColor;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
    display: inline-block;
    flex-shrink: 0;
    vertical-align: middle;
}

.icon-inline {
    width: 15px;
    height: 15px;
    margin-right: 6px;
    color: var(--color-secondary);
    vertical-align: -2px;
}

.icon-inline-light {
    color: rgba(255, 255, 255, 0.85);
}

.icon-check-inline {
    width: 16px;
    height: 16px;
    stroke-width: 3;
    margin-right: 6px;
    color: var(--color-secondary);
    vertical-align: -3px;
}

svg.icon-svg.star-icon {
    width: 15px;
    height: 15px;
    fill: var(--color-secondary);
    stroke: none;
    vertical-align: -2px;
}

.icon-arrow {
    width: 14px;
    height: 14px;
    margin-left: 4px;
    vertical-align: -2px;
}

/* ==========================================
   AI CHATBOT WIDGET
   ========================================== */
.chatbot-widget {
    position: fixed;
    bottom: 30px;
    right: 116px;
    z-index: 1000;
}

.chatbot-toggle-btn {
    position: relative;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--color-primary);
    border: none;
    cursor: pointer;
    box-shadow: 0px 4px 14px rgba(10, 42, 85, 0.25);
    transition: transform var(--transition-fast);
}

.chatbot-toggle-btn:hover {
    transform: scale(1.05);
}

.chatbot-toggle-btn > svg,
.chatbot-toggle-btn > img,
.chatbot-toggle-btn > span {
    border-radius: 50%;
}

.chatbot-ring-wave {
    position: absolute;
    top: 0;
    left: 0;
    width: 60px;
    height: 60px;
    background-color: var(--color-secondary);
    border-radius: 50%;
    opacity: 0.3;
    animation: ringWave 1.8s infinite ease-out;
    pointer-events: none;
}

.chatbot-fallback-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 28px;
    height: 28px;
    color: var(--color-white);
}

.chatbot-toggle-avatar {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.chatbot-toggle-badge {
    position: absolute;
    top: -2px;
    right: -2px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: var(--color-secondary);
    color: var(--color-dark);
    font-size: 0.7rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--color-white);
}

.chatbot-window {
    position: fixed;
    bottom: 104px;
    right: 30px;
    width: 360px;
    max-width: calc(100vw - 40px);
    height: 480px;
    max-height: calc(100vh - 140px);
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    opacity: 0;
    transform: translateY(16px) scale(0.98);
    pointer-events: none;
    transition: opacity 0.25s ease, transform 0.25s ease;
}

.chatbot-widget.chatbot-open .chatbot-window {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}

.chatbot-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    background-color: var(--color-primary);
    color: var(--color-white);
    flex-shrink: 0;
}

.chatbot-header-avatar {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    object-fit: cover;
    background-color: rgba(255, 255, 255, 0.15);
}

.chatbot-header-info {
    flex: 1;
    min-width: 0;
}

.chatbot-header-info h4 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--color-white);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.chatbot-status {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.75);
}

.chatbot-status-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background-color: #34D399;
}

.chatbot-close-btn {
    background: none;
    border: none;
    color: var(--color-white);
    font-size: 1.4rem;
    line-height: 1;
    cursor: pointer;
    opacity: 0.8;
    padding: 4px;
}

.chatbot-close-btn:hover {
    opacity: 1;
}

.chatbot-messages {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    background-color: #F8FAFC;
}

.chatbot-msg {
    display: flex;
}

.chatbot-msg--bot {
    justify-content: flex-start;
}

.chatbot-msg--user {
    justify-content: flex-end;
}

.chatbot-bubble {
    max-width: 82%;
    padding: 10px 14px;
    border-radius: 12px;
    font-size: 0.88rem;
    line-height: 1.55;
}

.chatbot-bubble a {
    color: inherit;
    text-decoration: underline;
    font-weight: 600;
}

.chatbot-msg--bot .chatbot-bubble {
    background-color: var(--color-white);
    color: var(--color-dark);
    border: 1px solid var(--color-border);
    border-top-left-radius: 4px;
}

.chatbot-msg--user .chatbot-bubble {
    background-color: var(--color-primary);
    color: var(--color-white);
    border-top-right-radius: 4px;
}

.chatbot-typing {
    display: flex;
    gap: 4px;
    align-items: center;
    padding: 14px;
}

.chatbot-typing span {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: var(--color-gray);
    opacity: 0.5;
    animation: chatbotTyping 1s infinite ease-in-out;
}

.chatbot-typing span:nth-child(2) { animation-delay: 0.15s; }
.chatbot-typing span:nth-child(3) { animation-delay: 0.3s; }

@keyframes chatbotTyping {
    0%, 60%, 100% { transform: translateY(0); opacity: 0.5; }
    30% { transform: translateY(-4px); opacity: 1; }
}

.chatbot-quick-replies {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 0 16px 12px;
    flex-shrink: 0;
    background-color: #F8FAFC;
}

.chatbot-chip {
    background-color: var(--color-white);
    border: 1px solid rgba(184, 151, 63, 0.5);
    color: var(--color-secondary-hover);
    font-size: 0.78rem;
    font-weight: 600;
    padding: 6px 12px;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.chatbot-chip:hover {
    background-color: var(--color-secondary-light);
}

.chatbot-input-row {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px;
    border-top: 1px solid var(--color-border);
    background-color: var(--color-white);
    flex-shrink: 0;
}

.chatbot-input-row input {
    flex: 1;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-full);
    padding: 10px 16px;
    font-size: 16px;
    font-family: var(--font-body);
    color: var(--color-dark);
}

.chatbot-input-row input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.chatbot-send-btn {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background-color: var(--color-primary);
    color: var(--color-white);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    flex-shrink: 0;
    transition: background-color var(--transition-fast);
}

.chatbot-send-btn:hover {
    background-color: var(--color-primary-hover);
}

.chatbot-send-btn svg {
    width: 18px;
    height: 18px;
    margin: 0;
}

@media (max-width: 480px) {
    .chatbot-widget {
        bottom: 30px;
        right: 112px;
    }
    .chatbot-window {
        bottom: 100px;
        right: 16px;
        width: calc(100vw - 32px);
        height: calc(100vh - 130px);
    }
}

/* ==========================================
   ICON HOVER MICRO-INTERACTIONS
   ========================================== */
.service-icon,
.value-icon-circle,
.contact-icon {
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(-4deg);
}

.value-card:hover .value-icon-circle {
    transform: scale(1.12);
}

.contact-item:hover .contact-icon {
    transform: scale(1.1) rotate(4deg);
}