/* 
================================================================
PROHOUSE STYLE SHEET - MODERN PREMIUM DESIGN
================================================================
*/

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    /* Color Palette */
    --primary: #ff781f;
    --primary-rgb: 255, 120, 31;
    --primary-light: #ffa260;
    --primary-dark: #e06212;
    --dark-bg: #0b0b0c;
    --dark-section: #121214;
    --light-bg: #f9f9fb;
    --light-section: #ffffff;
    --card-dark: #18181c;
    --card-light: #ffffff;
    --text-white: #ffffff;
    --text-dark: #1a1a1d;
    --text-muted-light: #a0a0ab;
    --text-muted-dark: #62626e;
    --border-dark: rgba(255, 255, 255, 0.08);
    --border-light: rgba(0, 0, 0, 0.08);
    
    /* Layout & Styling */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    --border-radius-sm: 8px;
    --border-radius-md: 16px;
    --border-radius-lg: 24px;
    --border-radius-xl: 32px;
    --shadow-premium: 0 20px 40px rgba(0, 0, 0, 0.3);
    --shadow-light: 0 10px 30px rgba(0, 0, 0, 0.05);
    --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: all 0.2s ease;
}

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

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

body {
    font-family: var(--font-body);
    background-color: var(--dark-bg);
    color: var(--text-white);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
}

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

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

ul {
    list-style: none;
}

button, input, select, textarea {
    font-family: inherit;
    outline: none;
    border: none;
}

/* Utilities */
.section {
    padding: 100px 0;
    position: relative;
}

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

.text-primary { color: var(--primary); }
.text-center { text-align: center; }

.section-subtitle {
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--primary);
    margin-bottom: 12px;
    display: block;
}

.section-title {
    font-size: 38px;
    font-weight: 800;
    margin-bottom: 20px;
    letter-spacing: -0.5px;
}

@media (min-width: 768px) {
    .section-title {
        font-size: 48px;
    }
}

.section-desc {
    max-width: 600px;
    margin: 0 auto 60px auto;
    color: var(--text-muted-light);
    font-size: 16px;
}

/* Header & Navigation */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition);
}

header.scrolled {
    background: rgba(11, 11, 12, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-dark);
    padding: 12px 0;
}

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

.logo img {
    height: 48px;
    width: auto;
    transition: var(--transition);
}

header.scrolled .logo img {
    height: 40px;
}

.nav-menu {
    display: none;
}

.nav-link {
    font-family: var(--font-heading);
    font-size: 15px;
    font-weight: 500;
    color: var(--text-white);
    margin: 0 16px;
    position: relative;
    padding: 8px 0;
}

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

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

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: var(--border-radius-sm);
    font-size: 15px;
    font-weight: 600;
    font-family: var(--font-heading);
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background-color: var(--primary);
    color: var(--text-white);
    box-shadow: 0 8px 20px rgba(255, 120, 31, 0.25);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    box-shadow: 0 12px 25px rgba(255, 120, 31, 0.4);
    transform: translateY(-2px);
}

.btn-outline {
    background-color: transparent;
    color: var(--text-white);
    border: 1px solid var(--border-dark);
}

.btn-outline:hover {
    background-color: rgba(255, 255, 255, 0.05);
    border-color: var(--text-white);
    transform: translateY(-2px);
}

.mobile-menu-btn {
    background: transparent;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    gap: 6px;
    width: 24px;
    z-index: 1001;
}

.mobile-menu-btn span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--text-white);
    transition: var(--transition);
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

@media (min-width: 1024px) {
    .nav-menu {
        display: flex;
        align-items: center;
    }
    .mobile-menu-btn {
        display: none;
    }
}

/* Mobile Nav Drawer */
.mobile-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    max-width: 320px;
    height: 100vh;
    background: var(--dark-section);
    border-left: 1px solid var(--border-dark);
    z-index: 999;
    padding: 100px 40px 40px 40px;
    display: flex;
    flex-direction: column;
    gap: 30px;
    transition: var(--transition);
}

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

.mobile-nav .nav-link {
    font-size: 20px;
    margin: 0;
}

.mobile-nav .btn {
    margin-top: 20px;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 120px;
    position: relative;
    background-color: var(--dark-bg);
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 70% 30%, rgba(255, 120, 31, 0.08) 0%, transparent 50%),
                radial-gradient(circle at 10% 80%, rgba(255, 255, 255, 0.02) 0%, transparent 40%);
    pointer-events: none;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    align-items: center;
}

@media (min-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1.2fr 1fr;
        gap: 60px;
    }
}

.hero-content {
    z-index: 2;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: rgba(255, 120, 31, 0.1);
    border: 1px solid rgba(255, 120, 31, 0.2);
    color: var(--primary);
    padding: 6px 14px;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 24px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero-title {
    font-size: 42px;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 24px;
}

.hero-title span {
    background: linear-gradient(135deg, var(--primary), #ffa260);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 56px;
    }
}

@media (min-width: 1200px) {
    .hero-title {
        font-size: 64px;
    }
}

.hero-desc {
    font-size: 16px;
    color: var(--text-muted-light);
    margin-bottom: 36px;
    max-width: 520px;
}

@media (min-width: 768px) {
    .hero-desc {
        font-size: 18px;
    }
}

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

.hero-stats {
    display: flex;
    gap: 40px;
    margin-top: 48px;
    border-top: 1px solid var(--border-dark);
    padding-top: 24px;
}

.stat-item h3 {
    font-size: 32px;
    color: var(--primary);
    font-weight: 700;
}

.stat-item p {
    font-size: 13px;
    color: var(--text-muted-light);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 4px;
}

.hero-media {
    position: relative;
    z-index: 1;
}

.hero-img-wrapper {
    position: relative;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-premium);
    aspect-ratio: 4 / 3;
    border: 1px solid var(--border-dark);
}

.hero-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1.05);
    transition: var(--transition);
}

.hero-img-wrapper:hover img {
    transform: scale(1);
}

.hero-card {
    position: absolute;
    bottom: -20px;
    left: -20px;
    background: rgba(24, 24, 28, 0.8);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-dark);
    padding: 24px;
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: var(--shadow-premium);
    max-width: 280px;
    z-index: 3;
    transition: var(--transition);
}

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

.hero-card-icon {
    width: 48px;
    height: 48px;
    background-color: var(--primary);
    border-radius: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--text-white);
}

.hero-card-info h4 {
    font-size: 15px;
    margin-bottom: 2px;
}

.hero-card-info p {
    font-size: 12px;
    color: var(--text-muted-light);
}

/* About Section */
.about {
    background-color: var(--dark-section);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 50px;
    align-items: center;
}

@media (min-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr 1.2fr;
        gap: 80px;
    }
}

.about-images {
    position: relative;
}

.about-img-main {
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-premium);
    aspect-ratio: 4 / 5;
    border: 1px solid var(--border-dark);
}

.about-img-main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-img-overlay {
    position: absolute;
    bottom: -30px;
    right: -20px;
    width: 60%;
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-premium);
    border: 3px solid var(--dark-section);
    aspect-ratio: 1;
}

.about-img-overlay img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-features {
    margin-top: 32px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.feature-item {
    display: flex;
    gap: 16px;
}

.feature-icon {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    border-radius: 50px;
    background-color: rgba(255, 120, 31, 0.1);
    border: 1px solid rgba(255, 120, 31, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 18px;
}

.feature-text h4 {
    font-size: 18px;
    margin-bottom: 6px;
}

.feature-text p {
    font-size: 14px;
    color: var(--text-muted-light);
}

/* Services Section */
.services {
    background-color: var(--dark-bg);
}

.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
}

@media (min-width: 768px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.service-card {
    background: var(--card-dark);
    border: 1px solid var(--border-dark);
    padding: 40px;
    border-radius: var(--border-radius-lg);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 120, 31, 0.15) 0%, transparent 100%);
    opacity: 0;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: rgba(255, 120, 31, 0.3);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.4);
}

.service-card:hover::before {
    opacity: 1;
}

.service-card-icon {
    width: 60px;
    height: 60px;
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-dark);
    color: var(--primary);
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    margin-bottom: 30px;
    transition: var(--transition);
    z-index: 1;
}

.service-card:hover .service-card-icon {
    background-color: var(--primary);
    color: var(--text-white);
    border-color: var(--primary);
    transform: scale(1.1);
}

.service-card h3 {
    font-size: 22px;
    margin-bottom: 16px;
    z-index: 1;
}

.service-card p {
    color: var(--text-muted-light);
    font-size: 14px;
    margin-bottom: 24px;
    flex-grow: 1;
    z-index: 1;
}

.service-card-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-family: var(--font-heading);
    font-size: 14px;
    color: var(--text-white);
    z-index: 1;
}

.service-card-link span {
    transition: var(--transition);
}

.service-card:hover .service-card-link span {
    transform: translateX(5px);
    color: var(--primary);
}

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

/* Portfolio Section */
.portfolio {
    background-color: var(--dark-section);
}

.portfolio-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 50px;
}

.filter-btn {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-dark);
    color: var(--text-muted-light);
    padding: 10px 24px;
    border-radius: 50px;
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
    background-color: var(--primary);
    border-color: var(--primary);
    color: var(--text-white);
    box-shadow: 0 6px 15px rgba(255, 120, 31, 0.2);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
}

@media (min-width: 768px) {
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .portfolio-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.portfolio-item {
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    position: relative;
    aspect-ratio: 4 / 3;
    box-shadow: var(--shadow-premium);
    border: 1px solid var(--border-dark);
}

.portfolio-img {
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.portfolio-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(11, 11, 12, 0.9) 0%, rgba(11, 11, 12, 0.4) 60%, transparent 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 30px;
    opacity: 0;
    transition: var(--transition);
    transform: translateY(10px);
}

.portfolio-item:hover .portfolio-img img {
    transform: scale(1.1);
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
    transform: translateY(0);
}

.portfolio-cat {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--primary);
    letter-spacing: 2px;
    margin-bottom: 8px;
}

.portfolio-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 12px;
}

.portfolio-link-icon {
    width: 40px;
    height: 40px;
    background-color: var(--primary);
    border-radius: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-size: 16px;
    transform: scale(0.8);
    opacity: 0;
    transition: var(--transition);
}

.portfolio-item:hover .portfolio-link-icon {
    transform: scale(1);
    opacity: 1;
}

.portfolio-detail-trigger {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

/* Lightbox Modal */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(11, 11, 12, 0.95);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 24px;
    backdrop-filter: blur(10px);
}

.lightbox.active {
    display: flex;
}

.lightbox-content {
    position: relative;
    max-width: 900px;
    width: 100%;
}

.lightbox-content img {
    width: 100%;
    max-height: 80vh;
    object-fit: contain;
    border-radius: var(--border-radius-md);
    box-shadow: 0 10px 40px rgba(0,0,0,0.5);
    border: 1px solid var(--border-dark);
}

.lightbox-caption {
    margin-top: 16px;
    text-align: center;
}

.lightbox-caption h4 {
    font-size: 20px;
    margin-bottom: 4px;
}

.lightbox-caption p {
    color: var(--primary);
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.lightbox-close {
    position: absolute;
    top: -40px;
    right: 0;
    background: transparent;
    color: var(--text-white);
    font-size: 24px;
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-close:hover {
    color: var(--primary);
}

/* Calculator Section (Báo giá nhanh) */
.calculator {
    background-color: var(--dark-bg);
}

.calculator-wrapper {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    align-items: stretch;
}

@media (min-width: 1024px) {
    .calculator-wrapper {
        grid-template-columns: 1.2fr 1fr;
        gap: 60px;
    }
}

.calc-form-block {
    background: var(--card-dark);
    border: 1px solid var(--border-dark);
    border-radius: var(--border-radius-lg);
    padding: 30px;
}

@media (min-width: 768px) {
    .calc-form-block {
        padding: 40px;
    }
}

.calc-group {
    margin-bottom: 24px;
}

.calc-label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--font-heading);
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 12px;
}

.calc-label-val {
    color: var(--primary);
    font-size: 16px;
}

.calc-select, .calc-input {
    width: 100%;
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-dark);
    border-radius: var(--border-radius-sm);
    color: var(--text-white);
    padding: 14px 18px;
    font-size: 15px;
    transition: var(--transition);
}

.calc-select:focus, .calc-input:focus {
    border-color: var(--primary);
    background-color: rgba(255, 120, 31, 0.02);
}

.calc-select option {
    background-color: var(--dark-section);
    color: var(--text-white);
}

.range-slider-wrapper {
    position: relative;
    padding-top: 10px;
}

.range-slider {
    -webkit-appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: var(--border-dark);
    outline: none;
    margin: 15px 0;
}

.range-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    box-shadow: 0 0 10px rgba(255, 120, 31, 0.5);
    transition: var(--transition-fast);
}

.range-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.calc-packages {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.package-option {
    border: 1px solid var(--border-dark);
    background: rgba(255, 255, 255, 0.02);
    border-radius: var(--border-radius-sm);
    padding: 16px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
}

.package-option.active {
    border-color: var(--primary);
    background-color: rgba(255, 120, 31, 0.08);
}

.package-option h4 {
    font-size: 14px;
    margin-bottom: 4px;
}

.package-option p {
    font-size: 11px;
    color: var(--text-muted-light);
}

.package-option.active h4 {
    color: var(--primary);
}

/* Result Block */
.calc-result-block {
    background: radial-gradient(circle at 100% 0%, rgba(255, 120, 31, 0.1) 0%, transparent 60%), var(--card-dark);
    border: 1px solid rgba(255, 120, 31, 0.2);
    border-radius: var(--border-radius-lg);
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    text-align: center;
    box-shadow: var(--shadow-premium);
}

.calc-result-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 24px;
}

.calc-result-price {
    font-size: 36px;
    font-weight: 800;
    font-family: var(--font-heading);
    color: var(--primary);
    margin: 16px 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
}

@media (min-width: 768px) {
    .calc-result-price {
        font-size: 48px;
    }
}

.calc-result-price span {
    font-size: 20px;
    font-weight: 500;
    color: var(--text-muted-light);
}

.calc-result-breakdown {
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--border-radius-sm);
    padding: 20px;
    margin-bottom: 30px;
    border: 1px solid var(--border-dark);
    text-align: left;
}

.breakdown-row {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    padding: 8px 0;
    border-bottom: 1px dashed var(--border-dark);
}

.breakdown-row:last-child {
    border-bottom: none;
    font-weight: 700;
    color: var(--primary);
}

.calc-result-note {
    font-size: 12px;
    color: var(--text-muted-light);
    line-height: 1.5;
}

/* Testimonials Section */
.testimonials {
    background-color: var(--dark-section);
    overflow: hidden;
}

.testimonials-slider-wrapper {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.testimonials-track {
    display: flex;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.testimonial-slide {
    min-width: 100%;
    padding: 10px;
}

.testimonial-card {
    background: var(--card-dark);
    border: 1px solid var(--border-dark);
    padding: 40px;
    border-radius: var(--border-radius-lg);
    text-align: center;
    box-shadow: var(--shadow-premium);
}

@media (min-width: 768px) {
    .testimonial-card {
        padding: 60px;
    }
}

.testimonial-quote-icon {
    font-size: 48px;
    color: rgba(255, 120, 31, 0.2);
    line-height: 1;
    margin-bottom: 20px;
}

.testimonial-text {
    font-size: 18px;
    font-style: italic;
    color: var(--text-white);
    margin-bottom: 30px;
    line-height: 1.8;
}

@media (min-width: 768px) {
    .testimonial-text {
        font-size: 22px;
    }
}

.testimonial-author {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.testimonial-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    overflow: hidden;
    border: 2px solid var(--primary);
}

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

.testimonial-name {
    font-size: 16px;
    font-weight: 700;
}

.testimonial-role {
    font-size: 13px;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.slider-controls {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-top: 40px;
}

.slider-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-dark);
    color: var(--text-white);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 18px;
    transition: var(--transition);
}

.slider-btn:hover {
    background-color: var(--primary);
    border-color: var(--primary);
    transform: scale(1.1);
}

/* Contact Section */
.contact {
    background-color: var(--dark-bg);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 50px;
}

@media (min-width: 1024px) {
    .contact-grid {
        grid-template-columns: 1fr 1.3fr;
        gap: 80px;
    }
}

.contact-info-block {
    display: flex;
    flex-direction: column;
    gap: 36px;
}

.contact-info-item {
    display: flex;
    gap: 20px;
}

.contact-info-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--border-radius-sm);
    background-color: rgba(255, 120, 31, 0.1);
    border: 1px solid rgba(255, 120, 31, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 20px;
    flex-shrink: 0;
}

.contact-info-details h4 {
    font-size: 18px;
    margin-bottom: 6px;
}

.contact-info-details p {
    font-size: 15px;
    color: var(--text-muted-light);
}

.contact-info-details a:hover {
    color: var(--primary);
}

.contact-socials {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}

.social-btn {
    width: 44px;
    height: 44px;
    border-radius: var(--border-radius-sm);
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-size: 18px;
}

.social-btn:hover {
    background-color: var(--primary);
    border-color: var(--primary);
    color: var(--text-white);
    transform: translateY(-3px);
}

/* Contact Form */
.contact-form-block {
    background: var(--card-dark);
    border: 1px solid var(--border-dark);
    border-radius: var(--border-radius-lg);
    padding: 30px;
    box-shadow: var(--shadow-premium);
}

@media (min-width: 768px) {
    .contact-form-block {
        padding: 45px;
    }
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    margin-bottom: 24px;
}

@media (min-width: 768px) {
    .form-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-label {
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 600;
}

.form-input, .form-textarea {
    width: 100%;
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-dark);
    border-radius: var(--border-radius-sm);
    color: var(--text-white);
    padding: 14px 18px;
    font-size: 15px;
    transition: var(--transition);
}

.form-textarea {
    resize: none;
    height: 120px;
}

.form-input:focus, .form-textarea:focus {
    border-color: var(--primary);
    background-color: rgba(255, 120, 31, 0.02);
}

.form-submit-btn {
    width: 100%;
}

/* Toast Message */
.toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: #10b981;
    color: white;
    padding: 16px 24px;
    border-radius: var(--border-radius-sm);
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    z-index: 9999;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 12px;
    transform: translateY(100px);
    opacity: 0;
    transition: var(--transition);
    pointer-events: none;
}

.toast.active {
    transform: translateY(0);
    opacity: 1;
}

/* Sticky Contact Buttons */
.sticky-contacts {
    position: fixed;
    bottom: 30px;
    left: 30px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    z-index: 999;
}

.sticky-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 22px;
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
    transition: var(--transition);
}

.sticky-btn:hover {
    transform: scale(1.1) translateY(-3px);
}

.sticky-phone {
    background-color: var(--primary);
}

.sticky-zalo {
    background-color: #0068ff;
    font-weight: 800;
    font-family: var(--font-heading);
    font-size: 13px;
    text-transform: uppercase;
}

/* Footer Section */
footer {
    background-color: #070708;
    border-top: 1px solid var(--border-dark);
    padding: 80px 0 30px 0;
    font-size: 14px;
    color: var(--text-muted-light);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    margin-bottom: 60px;
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .footer-grid {
        grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    }
}

.footer-info h4 {
    margin-bottom: 20px;
}

.footer-info p {
    margin-bottom: 24px;
}

.footer-logo img {
    height: 48px;
    margin-bottom: 20px;
}

.footer-title {
    font-family: var(--font-heading);
    font-size: 16px;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 24px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a:hover {
    color: var(--primary);
    transform: translateX(3px);
}

.footer-contact-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.footer-contact-item {
    display: flex;
    gap: 12px;
}

.footer-contact-item span:first-child {
    color: var(--primary);
    flex-shrink: 0;
}

.footer-bottom {
    border-top: 1px solid var(--border-dark);
    padding-top: 30px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    text-align: center;
}

@media (min-width: 768px) {
    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }
}

.footer-bottom-links {
    display: flex;
    justify-content: center;
    gap: 24px;
}

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

/* Animations */
[data-reveal] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-reveal].revealed {
    opacity: 1;
    transform: translateY(0);
}