/* =========================================================
   THIET THACH GROUP - DEMO STYLESHEET
   Brand Colors:
   - Navy Main: #0f1941 / #12182e
   - Cyan Accent: #32b4a5 / #269285
   - Gold/Yellow: #e67e22 / #f39c12
   - Light Gray BG: #f8fafc / #edf2f7
   ========================================================= */

:root {
    --primary-navy: #0f1941;
    --navy-dark: #090e24;
    --navy-light: #18224b;
    --accent-cyan: #32b4a5;
    --accent-cyan-hover: #269285;
    --accent-gold: #f39c12;
    --accent-red: #e74c3c;
    --text-dark: #1e293b;
    --text-muted: #64748b;
    --text-light: #f8fafc;
    --bg-light: #f1f5f9;
    --bg-white: #ffffff;
    --card-shadow: 0 10px 25px -5px rgba(15, 25, 65, 0.08), 0 8px 10px -6px rgba(15, 25, 65, 0.04);
    --hover-shadow: 0 20px 30px -10px rgba(15, 25, 65, 0.15), 0 10px 15px -5px rgba(50, 180, 165, 0.12);
    --border-radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 15px;
}

body {
    font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text-dark);
    background-color: var(--bg-light);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
    color: var(--primary-navy);
    font-weight: 700;
    line-height: 1.3;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.container {
    width: 100%;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 20px;
}

/* =========================================================
   HEADER & NAVIGATION
   ========================================================= */

.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.top-bar {
    background-color: var(--primary-navy);
    padding: 12px 0;
    border-bottom: 2px solid var(--accent-cyan);
}

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

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

.logo-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--accent-cyan), #1e7066);
    color: #fff;
    font-size: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(50, 180, 165, 0.3);
}

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

.brand-title {
    font-family: 'Montserrat', sans-serif;
    font-size: 22px;
    font-weight: 800;
    color: #ffffff;
    letter-spacing: 1.5px;
}

.brand-sub {
    font-size: 11px;
    font-weight: 600;
    color: var(--accent-cyan);
    letter-spacing: 2px;
}

.header-nav-right {
    display: flex;
    align-items: center;
    gap: 24px;
}

.hotline-group {
    display: flex;
    align-items: center;
    gap: 16px;
}

.contact-pill {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #fff;
    padding: 4px 8px;
    border-radius: 8px;
    transition: var(--transition);
}

.contact-pill:hover {
    background: rgba(255, 255, 255, 0.08);
}

.icon-circle {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(50, 180, 165, 0.18);
    color: var(--accent-cyan);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    border: 1px solid var(--accent-cyan);
}

.pulse {
    animation: pulseGlow 2s infinite;
}

@keyframes pulseGlow {
    0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(50, 180, 165, 0.6); }
    70% { transform: scale(1.05); box-shadow: 0 0 0 10px rgba(50, 180, 165, 0); }
    100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(50, 180, 165, 0); }
}

.pill-info small {
    display: block;
    font-size: 11px;
    color: #94a3b8;
}

.pill-info strong {
    font-size: 14px;
    color: #ffffff;
    font-weight: 700;
}

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

.app-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    padding: 8px 14px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.app-btn:hover {
    background: var(--accent-cyan);
    color: #fff;
    border-color: var(--accent-cyan);
}

.btn-quote-header {
    background: linear-gradient(135deg, var(--accent-cyan), #20867a);
    color: #fff;
    border: none;
    padding: 9px 18px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 13px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 4px 12px rgba(50, 180, 165, 0.35);
    transition: var(--transition);
}

.btn-quote-header:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(50, 180, 165, 0.5);
}

.social-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-left: 6px;
}

.social-header a {
    color: #94a3b8;
    font-size: 16px;
}

.social-header a:hover {
    color: var(--accent-cyan);
}

.lang-tag {
    background: #1e293b;
    color: var(--accent-cyan);
    font-weight: 700;
    font-size: 11px;
    padding: 3px 8px;
    border-radius: 4px;
    border: 1px solid #334155;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: #fff;
    font-size: 24px;
    cursor: pointer;
}

/* Main Navigation Bar */
.main-nav {
    background-color: var(--navy-dark);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.nav-menu {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    flex-wrap: wrap;
    gap: 4px;
}

.nav-menu li a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    color: #cbd5e1;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.3px;
    text-transform: uppercase;
    position: relative;
}

.nav-menu li a:hover,
.nav-menu li.active a {
    color: var(--accent-cyan);
}

.nav-menu li.active a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 16px;
    right: 16px;
    height: 3px;
    background-color: var(--accent-cyan);
    border-radius: 3px 3px 0 0;
}

/* =========================================================
   HERO BANNER & PRICING PACKAGES
   ========================================================= */

.hero-section {
    padding: 40px 0 30px;
    background: radial-gradient(circle at top right, #1a2550, #090e24);
    color: #fff;
    position: relative;
}

.hero-banner-card {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 40px;
    margin-bottom: 40px;
}

.badge-exp {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(50, 180, 165, 0.2);
    color: var(--accent-cyan);
    border: 1px solid var(--accent-cyan);
    font-size: 13px;
    font-weight: 700;
    padding: 6px 14px;
    border-radius: 20px;
    margin-bottom: 16px;
}

.hero-title {
    font-size: 32px;
    color: #ffffff;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.hero-desc {
    font-size: 16px;
    color: #cbd5e1;
    margin-bottom: 24px;
    max-width: 700px;
}

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

.btn {
    padding: 12px 26px;
    border-radius: 8px;
    font-weight: 700;
    font-size: 14px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    border: none;
    transition: var(--transition);
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-cyan), #1b8073);
    color: #fff;
    box-shadow: 0 6px 20px rgba(50, 180, 165, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(50, 180, 165, 0.6);
}

.btn-outline {
    background: transparent;
    color: #ffffff;
    border: 2px solid rgba(255, 255, 255, 0.4);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #fff;
}

.hero-stat-badges {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.stat-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 12px;
    padding: 14px 24px;
    text-align: center;
    min-width: 170px;
}

.stat-num {
    display: block;
    font-size: 28px;
    font-weight: 800;
    font-family: 'Montserrat', sans-serif;
    color: var(--accent-cyan);
}

.stat-lbl {
    font-size: 12px;
    color: #94a3b8;
    text-transform: uppercase;
    font-weight: 600;
}

/* 3 Core Pricing Cards */
.pricing-cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.price-pkg-card {
    background: #ffffff;
    border-radius: var(--border-radius);
    padding: 28px 24px;
    color: var(--text-dark);
    box-shadow: var(--card-shadow);
    display: flex;
    flex-direction: column;
    position: relative;
    border: 2px solid transparent;
    transition: var(--transition);
}

.price-pkg-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--hover-shadow);
    border-color: var(--accent-cyan);
}

.price-pkg-card.featured {
    border-color: var(--accent-cyan);
    background: #ffffff;
}

.popular-ribbon {
    position: absolute;
    top: -12px;
    right: 20px;
    background: linear-gradient(135deg, var(--accent-gold), #d35400);
    color: #fff;
    font-size: 11px;
    font-weight: 800;
    padding: 4px 14px;
    border-radius: 20px;
    box-shadow: 0 4px 10px rgba(243, 156, 18, 0.4);
    letter-spacing: 0.5px;
}

.pkg-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 16px;
}

.pkg-icon {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    background: rgba(50, 180, 165, 0.12);
    color: var(--accent-cyan);
    font-size: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.pkg-tag {
    font-size: 11px;
    font-weight: 700;
    color: var(--accent-cyan);
    letter-spacing: 1px;
    display: block;
}

.pkg-header h3 {
    font-size: 17px;
    color: var(--primary-navy);
    margin: 0;
}

.pkg-price {
    font-size: 15px;
    color: var(--text-muted);
    margin-bottom: 20px;
    padding-bottom: 14px;
    border-bottom: 1px solid #e2e8f0;
}

.pkg-price strong {
    font-size: 26px;
    color: var(--primary-navy);
    font-family: 'Montserrat', sans-serif;
}

.pkg-features {
    flex-grow: 1;
    margin-bottom: 24px;
}

.pkg-features li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 13.5px;
    margin-bottom: 10px;
    color: #475569;
}

.pkg-features li i {
    color: var(--accent-cyan);
    margin-top: 3px;
}

.btn-card-action {
    width: 100%;
    padding: 12px;
    border-radius: 8px;
    font-weight: 700;
    font-size: 13.5px;
    border: 1px solid #cbd5e1;
    background: #f8fafc;
    color: var(--primary-navy);
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.btn-card-action:hover {
    background: var(--primary-navy);
    color: #fff;
    border-color: var(--primary-navy);
}

.btn-card-action.btn-highlight {
    background: var(--accent-cyan);
    color: #fff;
    border-color: var(--accent-cyan);
}

.btn-card-action.btn-highlight:hover {
    background: var(--accent-cyan-hover);
}

/* =========================================================
   SECTION HEADINGS COMMON
   ========================================================= */

.section-title-wrapper {
    text-align: center;
    margin-bottom: 36px;
}

.sub-heading {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 800;
    color: var(--accent-cyan);
    letter-spacing: 1.5px;
    margin-bottom: 8px;
    text-transform: uppercase;
}

.main-heading {
    font-size: 26px;
    color: var(--primary-navy);
    margin-bottom: 8px;
    letter-spacing: -0.3px;
}

.section-desc {
    font-size: 14.5px;
    color: var(--text-muted);
    max-width: 650px;
    margin: 0 auto;
}

/* =========================================================
   INTERACTIVE COST CALCULATOR SECTION
   ========================================================= */

.calculator-section {
    padding: 60px 0;
    background: #ffffff;
}

.calculator-box {
    background: #ffffff;
    border-radius: var(--border-radius);
    box-shadow: 0 15px 35px -5px rgba(15, 25, 65, 0.1);
    border: 1px solid #e2e8f0;
    padding: 32px;
}

.calc-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1.2fr;
    gap: 28px;
}

.calc-col {
    display: flex;
    flex-direction: column;
}

.col-title {
    font-size: 16px;
    color: var(--primary-navy);
    margin-bottom: 18px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--accent-cyan);
    display: flex;
    align-items: center;
    gap: 8px;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: #334155;
    margin-bottom: 6px;
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    border-radius: 8px;
    border: 1.5px solid #cbd5e1;
    font-size: 14px;
    color: var(--text-dark);
    outline: none;
    transition: var(--transition);
    background-color: #f8fafc;
}

.form-control:focus {
    border-color: var(--accent-cyan);
    background-color: #fff;
    box-shadow: 0 0 0 3px rgba(50, 180, 165, 0.15);
}

.form-row-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

/* Result Card */
.result-card {
    background: linear-gradient(145deg, #0f1941, #162256);
    color: #fff;
    border-radius: var(--border-radius);
    padding: 24px;
    box-shadow: 0 10px 25px rgba(15, 25, 65, 0.2);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    font-size: 14px;
    font-weight: 700;
    color: #fff;
}

.badge-live {
    background: rgba(50, 180, 165, 0.25);
    color: var(--accent-cyan);
    font-size: 10px;
    padding: 4px 8px;
    border-radius: 12px;
    font-weight: 700;
    border: 1px solid var(--accent-cyan);
}

.result-item {
    display: flex;
    justify-content: space-between;
    font-size: 13.5px;
    margin-bottom: 8px;
    color: #cbd5e1;
}

.highlight-cyan {
    color: var(--accent-cyan);
    font-size: 16px;
}

.calc-divider {
    border: 0;
    height: 1px;
    background: rgba(255, 255, 255, 0.12);
    margin: 14px 0;
}

.result-price-breakdown {
    margin-bottom: 16px;
}

.cost-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    margin-bottom: 8px;
    color: #94a3b8;
}

.cost-row strong {
    color: #ffffff;
    font-size: 14px;
}

.free-text {
    color: var(--accent-cyan);
    font-size: 13px;
}

.free-text del {
    color: #64748b;
    margin-right: 4px;
}

.total-budget-box {
    background: rgba(255, 255, 255, 0.08);
    border-radius: 8px;
    padding: 16px;
    text-align: center;
    margin-bottom: 16px;
    border: 1px solid rgba(50, 180, 165, 0.3);
}

.total-label {
    font-size: 12px;
    font-weight: 700;
    color: #94a3b8;
    display: block;
    margin-bottom: 4px;
}

.total-amount {
    font-family: 'Montserrat', sans-serif;
    font-size: 26px;
    font-weight: 800;
    color: var(--accent-gold);
    letter-spacing: 0.5px;
}

.note-vat {
    font-size: 11px;
    color: #94a3b8;
    display: block;
    margin-top: 4px;
}

.btn-export-quote {
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, var(--accent-cyan), #20867a);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-weight: 700;
    font-size: 13.5px;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
    margin-top: auto;
}

.btn-export-quote:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(50, 180, 165, 0.5);
}

/* =========================================================
   GALLERY SYSTEM MASONRY SECTION
   ========================================================= */

.gallery-system-section {
    padding: 60px 0;
    background: var(--bg-light);
}

.branch-pill-nav {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.pill-btn {
    padding: 8px 18px;
    border-radius: 20px;
    background: #ffffff;
    border: 1px solid #cbd5e1;
    color: #475569;
    font-weight: 600;
    font-size: 13px;
    cursor: pointer;
    transition: var(--transition);
}

.pill-btn:hover,
.pill-btn.active {
    background: var(--primary-navy);
    color: #ffffff;
    border-color: var(--primary-navy);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.gallery-item {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    height: 250px;
    box-shadow: var(--card-shadow);
    cursor: pointer;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.gallery-item:hover img {
    transform: scale(1.08);
}

.gallery-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(15, 25, 65, 0.9) 0%, rgba(15, 25, 65, 0.2) 60%, transparent 100%);
    color: #fff;
    padding: 20px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    opacity: 0.95;
    transition: var(--transition);
}

.overlay-tag {
    font-size: 11px;
    font-weight: 700;
    color: var(--accent-cyan);
    text-transform: uppercase;
    letter-spacing: 0.8px;
    margin-bottom: 4px;
}

.gallery-overlay h4 {
    font-size: 16px;
    color: #fff;
    margin-bottom: 4px;
}

.gallery-overlay p {
    font-size: 12px;
    color: #cbd5e1;
    line-height: 1.4;
}

/* =========================================================
   PROJECT TIMELINE POSTS
   ========================================================= */

.site-news-section {
    padding: 60px 0;
    background: #ffffff;
}

.projects-timeline-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 22px;
}

.project-post-card {
    background: #ffffff;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--card-shadow);
    border: 1px solid #e2e8f0;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
}

.project-post-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--hover-shadow);
}

.card-thumb {
    height: 180px;
    position: relative;
    overflow: hidden;
}

.card-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.project-post-card:hover .card-thumb img {
    transform: scale(1.06);
}

.badge-branch {
    position: absolute;
    top: 12px;
    left: 12px;
    background: rgba(15, 25, 65, 0.85);
    color: #ffffff;
    font-size: 11px;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 6px;
    backdrop-filter: blur(4px);
}

.card-info {
    padding: 18px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.post-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 11.5px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.status-tag {
    padding: 2px 8px;
    border-radius: 4px;
    font-weight: 700;
    font-size: 10.5px;
}

.status-verify {
    background: #e0f2fe;
    color: #0369a1;
}

.status-handover {
    background: #dcfce7;
    color: #15803d;
}

.status-start {
    background: #fef3c7;
    color: #b45309;
}

.post-title {
    font-size: 15px;
    line-height: 1.4;
    margin-bottom: 8px;
}

.post-title a {
    color: var(--primary-navy);
}

.post-title a:hover {
    color: var(--accent-cyan);
}

.post-excerpt {
    font-size: 12.5px;
    color: #64748b;
    line-height: 1.5;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.post-footer {
    margin-top: auto;
    padding-top: 12px;
    border-top: 1px solid #f1f5f9;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 11.5px;
}

.client-name {
    color: #475569;
    font-weight: 600;
}

.read-more {
    color: var(--accent-cyan);
    font-weight: 700;
}

/* =========================================================
   HOUSE MODELS SECTION
   ========================================================= */

.house-models-section {
    padding: 60px 0;
    background: #f8fafc;
}

.model-categories-bar {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.model-tab-btn {
    padding: 10px 20px;
    border-radius: 8px;
    background: #ffffff;
    border: 1.5px solid #e2e8f0;
    color: #475569;
    font-weight: 700;
    font-size: 13.5px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.model-tab-btn:hover,
.model-tab-btn.active {
    background: var(--primary-navy);
    color: #ffffff;
    border-color: var(--primary-navy);
}

.house-models-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.house-card {
    background: #ffffff;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--card-shadow);
    border: 1px solid #e2e8f0;
    cursor: pointer;
    transition: var(--transition);
}

.house-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--hover-shadow);
}

.house-img-box {
    height: 220px;
    position: relative;
    overflow: hidden;
}

.house-img-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.house-card:hover .house-img-box img {
    transform: scale(1.08);
}

.house-badge {
    position: absolute;
    bottom: 12px;
    left: 12px;
    background: var(--accent-cyan);
    color: #ffffff;
    font-size: 11px;
    font-weight: 800;
    padding: 3px 8px;
    border-radius: 4px;
}

.house-details {
    padding: 18px;
}

.house-details h4 {
    font-size: 16px;
    color: var(--primary-navy);
    margin-bottom: 10px;
}

.house-specs {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: #64748b;
    border-top: 1px solid #f1f5f9;
    padding-top: 10px;
}

.house-specs span {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

/* =========================================================
   MANAGEMENT / LEADERSHIP
   ========================================================= */

.management-section {
    padding: 60px 0;
    background: #ffffff;
}

.leadership-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.leader-card {
    background: #f8fafc;
    border-radius: var(--border-radius);
    overflow: hidden;
    border: 1px solid #e2e8f0;
    text-align: center;
    transition: var(--transition);
}

.leader-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--hover-shadow);
    border-color: var(--accent-cyan);
}

.leader-avatar {
    height: 260px;
    position: relative;
    overflow: hidden;
}

.leader-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.leader-socials {
    position: absolute;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    opacity: 0;
    transition: var(--transition);
}

.leader-card:hover .leader-socials {
    opacity: 1;
}

.leader-socials a {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--primary-navy);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
}

.leader-socials a:hover {
    background: var(--accent-cyan);
}

.leader-info {
    padding: 16px 14px;
}

.leader-info h4 {
    font-size: 16px;
    color: var(--primary-navy);
    margin-bottom: 4px;
}

.leader-role {
    font-size: 12px;
    font-weight: 700;
    color: var(--accent-cyan);
    display: block;
    margin-bottom: 8px;
}

.leader-info p {
    font-size: 12px;
    color: #64748b;
    line-height: 1.4;
}

/* =========================================================
   APP SHOWCASE SECTION
   ========================================================= */

.app-showcase-section {
    padding: 70px 0;
    background: linear-gradient(135deg, #090e24 0%, #12182e 100%);
    color: #ffffff;
}

.app-content-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    align-items: center;
    gap: 50px;
}

.app-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(50, 180, 165, 0.2);
    color: var(--accent-cyan);
    border: 1px solid var(--accent-cyan);
    font-size: 12px;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 20px;
    margin-bottom: 12px;
}

.app-text-block h2 {
    font-size: 28px;
    color: #ffffff;
    margin-bottom: 16px;
}

.app-text-block p {
    font-size: 15px;
    color: #cbd5e1;
    margin-bottom: 24px;
}

.app-feature-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 30px;
}

.feat-box {
    display: flex;
    align-items: flex-start;
    gap: 14px;
}

.feat-box i {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: rgba(50, 180, 165, 0.2);
    color: var(--accent-cyan);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
}

.feat-box strong {
    display: block;
    color: #ffffff;
    font-size: 14px;
    margin-bottom: 2px;
}

.feat-box span {
    font-size: 13px;
    color: #94a3b8;
}

.app-download-cta {
    display: flex;
    gap: 16px;
}

.store-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: #ffffff;
    color: var(--primary-navy);
    padding: 10px 18px;
    border-radius: 10px;
    transition: var(--transition);
}

.store-btn:hover {
    background: var(--accent-cyan);
    color: #ffffff;
    transform: translateY(-3px);
}

.store-btn i {
    font-size: 28px;
}

.store-btn small {
    display: block;
    font-size: 10px;
    text-transform: uppercase;
    color: #64748b;
}

.store-btn:hover small {
    color: #e2e8f0;
}

.store-btn strong {
    font-size: 14px;
    font-weight: 700;
}

/* Phone Mockup */
.phone-mockup {
    width: 280px;
    height: 520px;
    background: #1e293b;
    border-radius: 36px;
    border: 8px solid #334155;
    padding: 12px;
    margin: 0 auto;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5), 0 0 40px rgba(50, 180, 165, 0.2);
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: #0f1941;
    border-radius: 24px;
    padding: 16px 12px;
    display: flex;
    flex-direction: column;
}

.app-screen-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #fff;
    font-size: 12px;
    font-weight: 700;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 16px;
}

.app-noti-card {
    background: rgba(255, 255, 255, 0.08);
    border-radius: 10px;
    padding: 10px;
    display: flex;
    gap: 8px;
    margin-bottom: 14px;
}

.text-green {
    color: #22c55e;
    font-size: 16px;
    margin-top: 2px;
}

.app-noti-card small {
    color: var(--accent-cyan);
    font-size: 10px;
    display: block;
}

.app-noti-card p {
    font-size: 11px;
    color: #ffffff;
    margin: 0;
}

.app-chart-box {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    padding: 12px;
    margin-bottom: 16px;
}

.app-chart-box small {
    color: #cbd5e1;
    font-size: 11px;
}

.progress-bar-wrap {
    height: 8px;
    background: #334155;
    border-radius: 4px;
    margin-top: 6px;
    overflow: hidden;
}

.progress-fill {
    width: 68%;
    height: 100%;
    background: linear-gradient(90deg, var(--accent-cyan), #38bdf8);
    border-radius: 4px;
}

.app-quick-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-top: auto;
}

.q-btn {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    padding: 10px 6px;
    text-align: center;
    font-size: 11px;
    color: #fff;
}

/* =========================================================
   PARTNERS SECTION
   ========================================================= */

.partners-section {
    padding: 40px 0;
    background: #ffffff;
    border-top: 1px solid #e2e8f0;
    border-bottom: 1px solid #e2e8f0;
}

.partner-heading {
    text-align: center;
    font-size: 14px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 20px;
}

.partners-logo-row {
    display: flex;
    justify-content: space-around;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.partner-brand {
    color: #64748b;
    font-size: 16px;
    letter-spacing: 1px;
    padding: 8px 16px;
    border-radius: 6px;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    transition: var(--transition);
}

.partner-brand:hover {
    color: var(--primary-navy);
    border-color: var(--accent-cyan);
    background: #ffffff;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}

/* =========================================================
   SITE FOOTER
   ========================================================= */

.site-footer {
    background: var(--navy-dark);
    color: #94a3b8;
    padding-top: 50px;
}

.footer-main-grid {
    display: grid;
    grid-template-columns: 1.4fr 1.3fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 14px;
}

.footer-logo i {
    color: var(--accent-cyan);
}

.company-desc {
    color: #ffffff;
    font-size: 13.5px;
    margin-bottom: 10px;
}

.about-col p {
    font-size: 12.5px;
    line-height: 1.6;
    margin-bottom: 16px;
}

.gov-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #38bdf8;
    font-size: 12px;
    font-weight: 600;
}

.footer-title {
    font-size: 16px;
    color: #ffffff;
    margin-bottom: 16px;
    position: relative;
    padding-bottom: 8px;
}

.footer-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 36px;
    height: 2px;
    background: var(--accent-cyan);
}

.branch-list li {
    font-size: 12.5px;
    margin-bottom: 10px;
    line-height: 1.5;
}

.branch-list li i {
    color: var(--accent-cyan);
    margin-right: 6px;
}

.branch-list li strong {
    color: #e2e8f0;
}

.hotline-box-footer {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 20px;
}

.hl-item small {
    display: block;
    font-size: 11px;
    color: #64748b;
}

.hl-item a {
    color: var(--accent-cyan);
    font-size: 16px;
    font-weight: 700;
}

.social-footer {
    display: flex;
    gap: 10px;
}

.social-footer a {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    transition: var(--transition);
}

.social-footer a:hover {
    background: var(--accent-cyan);
}

.footer-bottom {
    background: #060918;
    padding: 16px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

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

.footer-links {
    display: flex;
    gap: 16px;
}

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

/* =========================================================
   FLOATING SPEED DIAL QUICK CONTACT
   ========================================================= */

.quick-speed-dial {
    position: fixed;
    bottom: 30px;
    right: 24px;
    z-index: 999;
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: flex-end;
}

.dial-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    color: #ffffff;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.3);
    cursor: pointer;
    position: relative;
    border: none;
    transition: var(--transition);
    font-size: 20px;
}

.dial-btn:hover {
    transform: scale(1.1);
}

.dial-label {
    position: absolute;
    right: 64px;
    background: var(--primary-navy);
    color: #fff;
    font-size: 12px;
    font-weight: 700;
    padding: 6px 12px;
    border-radius: 6px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    transition: var(--transition);
}

.dial-btn:hover .dial-label {
    opacity: 1;
    right: 60px;
}

.dial-calc {
    background: #3b82f6;
}

.dial-zalo {
    background: #0084ff;
}

.dial-phone {
    background: var(--accent-red);
}

.dial-main {
    background: var(--accent-cyan);
}

/* =========================================================
   MODALS & LIGHTBOX
   ========================================================= */

.custom-modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(15, 25, 65, 0.75);
    backdrop-filter: blur(5px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.custom-modal-backdrop.active {
    opacity: 1;
    pointer-events: auto;
}

.custom-modal-dialog {
    background: #ffffff;
    border-radius: var(--border-radius);
    max-width: 520px;
    width: 100%;
    padding: 32px;
    position: relative;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.35);
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.custom-modal-backdrop.active .custom-modal-dialog {
    transform: scale(1);
}

.btn-close-modal {
    position: absolute;
    top: 16px;
    right: 16px;
    background: #f1f5f9;
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    font-size: 16px;
    color: #475569;
    cursor: pointer;
}

.modal-header-styled {
    text-align: center;
    margin-bottom: 24px;
}

.modal-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    background: rgba(50, 180, 165, 0.15);
    color: var(--accent-cyan);
    font-size: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 12px;
}

.modal-header-styled h3 {
    font-size: 20px;
    color: var(--primary-navy);
}

.modal-header-styled p {
    font-size: 13px;
    color: var(--text-muted);
}

.btn-submit-consult {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, var(--accent-cyan), #1b8073);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-weight: 700;
    font-size: 14px;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    box-shadow: 0 6px 16px rgba(50, 180, 165, 0.4);
    margin-top: 10px;
}

/* House Modal Grid */
.house-modal-dialog {
    max-width: 800px;
    padding: 24px;
}

.house-modal-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 24px;
    align-items: center;
}

.house-modal-img img {
    width: 100%;
    border-radius: 8px;
    object-fit: cover;
    max-height: 380px;
}

.house-modal-body h3 {
    font-size: 20px;
    margin: 10px 0 14px;
}

.house-modal-details p {
    font-size: 13px;
    color: #475569;
    margin-bottom: 8px;
}

.modal-action-box {
    margin-top: 20px;
}

/* Lightbox */
.lightbox-dialog {
    max-width: 850px;
    width: 90vw;
    text-align: center;
    position: relative;
}

.lightbox-dialog img {
    max-height: 75vh;
    margin: 0 auto;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.lightbox-caption {
    color: #ffffff;
    font-size: 15px;
    font-weight: 600;
    margin-top: 12px;
}

/* =========================================================
   RESPONSIVE DESIGN (MOBILE / TABLET)
   ========================================================= */

@media (max-width: 1024px) {
    .pricing-cards-grid {
        grid-template-columns: 1fr;
    }
    
    .calc-form-grid {
        grid-template-columns: 1fr;
    }
    
    .projects-timeline-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .house-models-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .leadership-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .app-content-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .feat-box {
        justify-content: center;
        text-align: left;
    }
    
    .app-download-cta {
        justify-content: center;
    }
    
    .footer-main-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .header-nav-right {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .main-nav {
        display: none;
    }
    
    .main-nav.mobile-open {
        display: block;
    }
    
    .nav-menu {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .nav-menu li a {
        padding: 10px 20px;
        width: 100%;
    }
    
    .hero-banner-card {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-stat-badges {
        flex-direction: row;
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .projects-timeline-grid {
        grid-template-columns: 1fr;
    }
    
    .house-models-grid {
        grid-template-columns: 1fr;
    }
    
    .leadership-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-main-grid {
        grid-template-columns: 1fr;
    }
    
    .house-modal-grid {
        grid-template-columns: 1fr;
    }
    
    .bottom-content {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
}