/* ========================================
   Alluvia City - Modern CSS Stylesheet
   ======================================== */

/* CSS Variables */
:root {
    /* Colors */
    --primary-color: #1e40af;
    --primary-dark: #1e3a8a;
    --primary-light: #3b82f6;
    --secondary-color: #059669;
    --secondary-dark: #047857;
    --accent-color: #f59e0b;
    --accent-dark: #d97706;

    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;

    --bg-white: #ffffff;
    --bg-gray-50: #f9fafb;
    --bg-gray-100: #f3f4f6;
    --bg-gray-900: #111827;

    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Playfair Display', Georgia, serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========================================
   Reset & Base Styles
   ======================================== */

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

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

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

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

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

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

ul {
    list-style: none;
}

/* ========================================
   Container & Layout
   ======================================== */

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-lg);
    }
}

/* ========================================
   Typography
   ======================================== */

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

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

.gradient-text {
    background: linear-gradient(135deg, #ff9f43, #feca57, #ff9f43);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: none;
    font-weight: 900;
}

.hero-title .gradient-text {
    background: linear-gradient(135deg, #ff9f43, #ffd32a, #ff9f43);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(2px 2px 4px rgba(0, 0, 0, 0.3));
}

/* ========================================
   Buttons
   ======================================== */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    font-weight: 600;
    font-size: 1rem;
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    cursor: pointer;
    border: 2px solid transparent;
    text-align: center;
    justify-content: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    box-shadow: var(--shadow-lg);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
}

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

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

.btn-block {
    width: 100%;
}

/* ========================================
   Header & Navigation
   ======================================== */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: all var(--transition-base);
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
}

.navbar {
    padding: 1rem 0;
}

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

.logo img {
    height: 50px;
    width: auto;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    font-weight: 500;
    color: var(--text-primary);
    position: relative;
    padding: 0.5rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    transition: width var(--transition-base);
}

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

.nav-link.cta-button {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-full);
}

.nav-link.cta-button::after {
    display: none;
}

.nav-link.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 0.35rem;
    cursor: pointer;
    z-index: 1001;
}

.nav-toggle span {
    width: 28px;
    height: 3px;
    background: var(--primary-color);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

/* Mobile Navigation */
@media (max-width: 1024px) {
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: white;
        box-shadow: var(--shadow-xl);
        padding: 5rem 2rem;
        transition: right var(--transition-base);
        z-index: 999;
    }

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

    .nav-list {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.5rem;
    }

    .nav-link.cta-button {
        width: 100%;
        text-align: center;
    }
}

/* ========================================
   Hero Section
   ======================================== */

.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-slider {
    position: absolute;
    inset: 0;
    z-index: 1;
}

.hero-slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

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

.hero-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
    transform: scale(1);
    will-change: transform;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.3));
}

.hero-content {
    position: relative;
    z-index: 2;
    width: 100%;
    padding: 6rem 0;
}

.hero-text {
    max-width: 800px;
}

.hero-subtitle {
    display: inline-block;
    color: white;
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 1rem;
    padding: 0.5rem 1.5rem;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-full);
}

.hero-title {
    color: white;
    margin-bottom: 1.5rem;
    text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.3);
}

.hero-description {
    color: rgba(255, 255, 255, 0.95);
    font-size: 1.25rem;
    margin-bottom: 2rem;
    max-width: 600px;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-controls {
    position: absolute;
    bottom: 50%;
    left: 0;
    right: 0;
    z-index: 3;
    display: flex;
    justify-content: space-between;
    padding: 0 var(--spacing-lg);
    transform: translateY(50%);
}

.hero-prev,
.hero-next {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    cursor: pointer;
}

.hero-prev:hover,
.hero-next:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

.hero-indicators {
    position: absolute;
    bottom: 3rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    display: flex;
    gap: 0.75rem;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all var(--transition-base);
}

.indicator.active {
    width: 40px;
    border-radius: var(--radius-full);
    background: white;
}

/* Animations */
.animate-fade-in {
    animation: fadeIn 1s ease-out;
}

.animate-slide-up {
    animation: slideUp 1s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================
   Quick Info Bar
   ======================================== */

.quick-info {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    padding: 2rem 0;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: white;
}

.info-item i {
    font-size: 2.5rem;
    opacity: 0.9;
}

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

.info-label {
    font-size: 0.875rem;
    opacity: 0.8;
}

.info-value {
    font-size: 1.25rem;
    font-weight: 700;
}

/* ========================================
   Section Styles
   ======================================== */

section {
    padding: var(--spacing-3xl) 0;
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-2xl);
}

.section-subtitle {
    display: inline-block;
    color: var(--primary-color);
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

.section-title {
    margin-bottom: 1rem;
}

.section-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

/* ========================================
   Project Scale Section
   ======================================== */

.project-scale {
    background: white;
}

.scale-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
}

.scale-table-wrapper {
    background: var(--bg-gray-50);
    padding: 2rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

.scale-table {
    width: 100%;
    border-collapse: collapse;
}

.scale-table tr {
    border-bottom: 1px solid var(--border-color);
}

.scale-table tr:last-child {
    border-bottom: none;
}

.scale-table td {
    padding: 1.25rem 1rem;
    vertical-align: top;
}

.scale-table td:first-child {
    width: 40%;
    color: var(--text-primary);
}

.scale-table td:last-child {
    color: var(--text-secondary);
}

.scale-table ul {
    margin-top: 0.5rem;
    padding-left: 1.5rem;
}

.scale-table ul li {
    list-style: disc;
    margin-bottom: 0.25rem;
}

.scale-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1.5rem;
}

.highlight-box {
    text-align: center;
    padding: 2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: var(--radius-xl);
    color: white;
    transition: all var(--transition-base);
}

.highlight-box:hover {
    transform: translateY(-10px) scale(1.05);
    box-shadow: var(--shadow-xl);
}

.highlight-number {
    font-size: 3rem;
    font-weight: 900;
    font-family: var(--font-heading);
    margin-bottom: 0.5rem;
}

.highlight-label {
    font-size: 0.875rem;
    opacity: 0.9;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.highlight-desc {
    margin-top: 0.5rem;
    font-size: 0.875rem;
    opacity: 0.8;
}

/* ========================================
   Pricing Section
   ======================================== */

.pricing {
    background: var(--bg-gray-50);
}

.pricing-banner {
    text-align: center;
    margin-bottom: 3rem;
    animation: pulse-slow 2s ease-in-out infinite;
}

@keyframes pulse-slow {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.02);
    }
}

.pricing-banner img {
    max-width: 600px;
    margin: 0 auto;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.pricing-card {
    background: white;
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all var(--transition-base);
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.pricing-card.featured {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
}

.featured-badge {
    position: absolute;
    top: -10px;
    right: 20px;
    background: var(--accent-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.pricing-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    border-radius: 50%;
    background: var(--bg-gray-50);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--primary-color);
}

.pricing-card.featured .pricing-icon {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.pricing-card h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.pricing-card.featured h3 {
    color: white;
}

.pricing-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.pricing-card.featured p {
    color: rgba(255, 255, 255, 0.9);
}

.file-info {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    padding: 0.75rem;
    background: var(--bg-gray-50);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.pricing-card.featured .file-info {
    background: rgba(255, 255, 255, 0.15);
    color: white;
}

.pricing-card .btn {
    width: 100%;
}

.pricing-card.featured .btn {
    background: white;
    color: var(--primary-color);
}

.pricing-card.featured .btn:hover {
    background: var(--bg-gray-50);
}

.pricing-note {
    display: flex;
    gap: 1.5rem;
    padding: 2rem;
    background: linear-gradient(135deg, #fff3cd, #fff9e6);
    border-left: 4px solid var(--accent-color);
    border-radius: var(--radius-lg);
}

.note-icon {
    font-size: 2rem;
    color: var(--accent-color);
    flex-shrink: 0;
}

.note-content h4 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.note-content p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ========================================
   Policy Section
   ======================================== */

.policy {
    background: white;
}

.policy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.policy-card {
    background: var(--bg-gray-50);
    padding: 2rem;
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.policy-card:hover {
    background: white;
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

/* Icon + Title horizontal layout (all devices) */
.policy-card>div:first-child {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    margin-bottom: 1.25rem;
}

.policy-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 0;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, var(--primary-light), var(--primary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: white;
    flex-shrink: 0;
}

.policy-card h3 {
    margin-bottom: 0;
    font-size: 1.375rem;
    color: var(--primary-color);
}

.policy-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.policy-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.policy-list li i {
    color: var(--secondary-color);
    margin-top: 0.25rem;
    flex-shrink: 0;
}

.policy-download {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

.download-card {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 2rem;
    background: var(--bg-gray-50);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.download-card:hover {
    background: white;
    box-shadow: var(--shadow-lg);
}

.download-icon {
    width: 80px;
    height: 80px;
    flex-shrink: 0;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, var(--accent-color), var(--accent-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
}

.download-info {
    flex: 1;
}

.download-info h4 {
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
    color: var(--text-primary);
}

.download-info p {
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    font-size: 0.875rem;
}

.file-size {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-light);
}

.download-card .btn {
    flex-shrink: 0;
}

/* ========================================
   About Section
   ======================================== */

.about {
    background: var(--bg-gray-50);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 3rem;
    align-items: center;
}

.about-image {
    position: relative;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.about-image img {
    width: 100%;
    transition: transform var(--transition-slow);
}

.about-image:hover img {
    transform: scale(1.05);
}

.about-badge {
    position: absolute;
    top: 2rem;
    left: 2rem;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-dark));
    color: white;
    padding: 1rem 1.5rem;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    box-shadow: var(--shadow-lg);
}

.about-text p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.about-text strong {
    color: var(--text-primary);
}

.highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin: 2rem 0;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-secondary);
}

.highlight-item i {
    color: var(--secondary-color);
    font-size: 1.25rem;
}

.about-cta {
    margin-top: 2rem;
}

/* ========================================
   Location Section
   ======================================== */

.location-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 3rem;
    align-items: center;
}

.location-map {
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.location-map img {
    width: 100%;
    transition: transform var(--transition-slow);
}

.location-map:hover img {
    transform: scale(1.05);
}

.location-info h3 {
    margin-bottom: 2rem;
    color: var(--primary-color);
}

.location-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.location-item {
    display: flex;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--bg-gray-50);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.location-item:hover {
    background: white;
    box-shadow: var(--shadow-md);
    transform: translateX(10px);
}

.location-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, var(--primary-light), var(--primary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.location-details strong {
    display: block;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.location-details span {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* ========================================
   Utilities Section
   ======================================== */

.utilities {
    background: var(--bg-gray-50);
}

.utilities-showcase {
    margin-bottom: 3rem;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.utilities-main-image {
    width: 100%;
    transition: transform var(--transition-slow);
}

.utilities-showcase:hover .utilities-main-image {
    transform: scale(1.02);
}

.utilities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.utility-card {
    background: white;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.utility-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.utility-image {
    position: relative;
    height: 250px;
    overflow: hidden;
}

.utility-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.utility-card:hover .utility-image img {
    transform: scale(1.1);
}

.utility-content {
    padding: 1.75rem;
}

/* Icon + Title horizontal layout (all devices) */
.utility-content>div:first-child {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    margin-bottom: 1rem;
}

.utility-icon {
    width: 55px;
    height: 55px;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, var(--primary-light), var(--primary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    margin-bottom: 0;
    flex-shrink: 0;
}

.utility-content h3 {
    margin-bottom: 0;
    font-size: 1.375rem;
}

.utility-content p {
    color: var(--text-secondary);
    line-height: 1.7;
}

.utilities-more {
    text-align: center;
    padding: 3rem;
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

.utilities-more h3 {
    margin-bottom: 2rem;
    color: var(--primary-color);
}

.utilities-extra {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.extra-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--bg-gray-50);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.extra-item:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-5px);
}

.extra-item i {
    font-size: 1.5rem;
}

/* ========================================
   Products Section
   ======================================== */

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.product-card {
    background: white;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.product-image {
    position: relative;
    height: 280px;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.product-card:hover .product-image img {
    transform: scale(1.1);
}

.product-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-dark));
    color: white;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
}

.product-content {
    padding: 2rem;
}

.product-content h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.product-content p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.product-specs {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    padding: 1rem 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.spec-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.spec-item i {
    color: var(--primary-color);
}

.product-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-color);
    font-weight: 600;
    transition: all var(--transition-base);
}

.product-link:hover {
    gap: 1rem;
}

.master-plan {
    padding: 3rem;
    background: var(--bg-gray-50);
    border-radius: var(--radius-xl);
}

.master-plan h3 {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--primary-color);
    font-size: 2rem;
}

.master-plan-images {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

.master-plan-images img {
    width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-base);
}

.master-plan-images img:hover {
    transform: scale(1.02);
}

/* ========================================
   Progress Section
   ======================================== */

.progress {
    background: var(--bg-gray-50);
}

.progress-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.progress-item {
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.progress-item:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-xl);
}

.progress-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.progress-timeline {
    padding: 3rem;
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

.progress-timeline h3 {
    text-align: center;
    margin-bottom: 3rem;
    color: var(--primary-color);
    font-size: 2rem;
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border-color);
}

.timeline-item {
    position: relative;
    padding-left: 80px;
    margin-bottom: 3rem;
}

.timeline-icon {
    position: absolute;
    left: 0;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--bg-gray-100);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    font-size: 1.5rem;
    z-index: 1;
}

.timeline-item.completed .timeline-icon {
    background: linear-gradient(135deg, var(--secondary-color), var(--secondary-dark));
    color: white;
}

.timeline-item.active .timeline-icon {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    animation: pulse 2s infinite;
}

@keyframes pulse {

    0%,
    100% {
        box-shadow: 0 0 0 0 rgba(30, 64, 175, 0.7);
    }

    50% {
        box-shadow: 0 0 0 20px rgba(30, 64, 175, 0);
    }
}

.timeline-content h4 {
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
}

.timeline-content p {
    color: var(--text-secondary);
}

/* ========================================
   Contact Section
   ======================================== */

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 3rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-card {
    display: flex;
    gap: 1.5rem;
    padding: 2rem;
    background: var(--bg-gray-50);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.contact-card:hover {
    background: white;
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.contact-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, var(--primary-light), var(--primary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.contact-details h4 {
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
}

.contact-details a {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 1.125rem;
}

.contact-details p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.contact-form-wrapper {
    background: var(--bg-gray-50);
    padding: 2.5rem;
    border-radius: var(--radius-xl);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 1rem;
    transition: all var(--transition-base);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* ========================================
   Footer
   ======================================== */

.footer {
    background: var(--bg-gray-900);
    color: rgba(255, 255, 255, 0.8);
    padding: 4rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-logo {
    margin-bottom: 1rem;
    max-width: 180px;
}

.footer-description {
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.footer-social a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.footer-social a:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

.footer-col h3 {
    color: white;
    margin-bottom: 1.5rem;
    font-size: 1.25rem;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a:hover {
    color: var(--primary-light);
    padding-left: 5px;
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-contact li {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.footer-contact i {
    color: var(--primary-light);
    margin-top: 0.25rem;
}

.footer-contact a:hover {
    color: var(--primary-light);
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom i {
    color: #ef4444;
}

/* ========================================
   Quick Navigation (Mobile Only)
   ======================================== */

.quick-nav-mobile {
    display: none;
}

@media (max-width: 768px) {
    .quick-nav-mobile {
        display: block;
        position: fixed;
        bottom: 6rem;
        left: 1rem;
        z-index: 998;
    }

    .quick-nav-toggle {
        width: 50px;
        height: 50px;
        border-radius: 50%;
        background: linear-gradient(135deg, var(--accent-color), var(--accent-dark));
        color: white;
        border: none;
        box-shadow: var(--shadow-xl);
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.25rem;
        transition: all var(--transition-base);
    }

    .quick-nav-toggle:active {
        transform: scale(0.95);
    }

    .quick-nav-menu {
        position: absolute;
        bottom: 60px;
        left: 0;
        background: white;
        border-radius: var(--radius-xl);
        box-shadow: var(--shadow-xl);
        padding: 0.5rem;
        display: flex;
        flex-direction: column;
        gap: 0.25rem;
        opacity: 0;
        visibility: hidden;
        transform: translateY(10px);
        transition: all var(--transition-base);
        min-width: 140px;
    }

    .quick-nav-menu.active {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    .quick-nav-item {
        display: flex;
        align-items: center;
        gap: 0.75rem;
        padding: 0.75rem 1rem;
        color: var(--text-primary);
        border-radius: var(--radius-md);
        transition: all var(--transition-base);
        font-size: 0.875rem;
        font-weight: 500;
        text-decoration: none;
    }

    .quick-nav-item:hover {
        background: var(--bg-gray-50);
        color: var(--primary-color);
    }

    .quick-nav-item i {
        font-size: 1rem;
        color: var(--primary-color);
    }
}

/* ========================================
   Floating Buttons
   ======================================== */

.floating-buttons {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 999;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.float-btn {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    box-shadow: var(--shadow-xl);
    transition: all var(--transition-base);
    animation: float 3s ease-in-out infinite;
}

.phone-btn {
    background: linear-gradient(135deg, #10b981, #059669);
}

.zalo-btn {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
}

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

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

/* ========================================
   Back to Top Button
   ======================================== */

.back-to-top {
    position: fixed;
    bottom: 2rem;
    left: 2rem;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: 998;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

/* ========================================
   Responsive Design
   ======================================== */

@media (max-width: 1024px) {
    :root {
        --spacing-3xl: 4rem;
    }

    .hero {
        min-height: 500px;
    }

    .hero-content {
        padding: 4rem 0;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-xl: 1.5rem;
        --spacing-2xl: 2rem;
        --spacing-3xl: 2.5rem;
    }

    section {
        padding: var(--spacing-xl) 0;
    }

    /* Giảm spacing giữa các elements */
    .section-header {
        margin-bottom: var(--spacing-xl);
    }

    .section-subtitle {
        font-size: 0.75rem;
        margin-bottom: 0.25rem;
    }

    .section-title {
        font-size: 1.75rem;
        margin-bottom: 0.75rem;
    }

    .section-description {
        font-size: 0.95rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .info-grid,
    .about-grid,
    .location-grid,
    .utilities-grid,
    .products-grid,
    .progress-gallery,
    .contact-grid,
    .master-plan-images,
    .scale-highlights,
    .pricing-grid,
    .policy-grid,
    .policy-download {
        grid-template-columns: 1fr;
    }

    .hero-controls {
        padding: 0 var(--spacing-sm);
    }

    .hero-prev,
    .hero-next {
        width: 40px;
        height: 40px;
    }

    .floating-buttons {
        bottom: 1rem;
        right: 1rem;
    }

    .float-btn {
        width: 50px;
        height: 50px;
        font-size: 1.25rem;
    }

    .back-to-top {
        bottom: 1rem;
        left: 1rem;
        width: 40px;
        height: 40px;
    }

    /* Scale table responsive */
    .scale-table-wrapper {
        padding: 1rem;
        overflow-x: auto;
    }

    .scale-table td {
        padding: 0.75rem 0.5rem;
        font-size: 0.875rem;
    }

    .scale-table td:first-child {
        width: 35%;
    }

    .scale-table ul {
        padding-left: 1rem;
    }

    .scale-table ul li {
        font-size: 0.875rem;
    }

    /* Pricing responsive */
    .pricing-banner img {
        max-width: 100%;
    }

    .pricing-banner {
        margin-bottom: 2rem;
    }

    .pricing-card {
        padding: 1.5rem;
    }

    .pricing-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
        margin-bottom: 1rem;
    }

    .pricing-card h3 {
        font-size: 1.25rem;
        margin-bottom: 0.75rem;
    }

    .pricing-card p {
        font-size: 0.875rem;
        margin-bottom: 1rem;
    }

    .pricing-note {
        flex-direction: column;
        padding: 1rem;
    }

    .note-icon {
        font-size: 1.5rem;
    }

    .note-content h4 {
        font-size: 1rem;
    }

    .note-content p {
        font-size: 0.875rem;
    }

    /* Policy responsive - Mobile adjustments */
    .policy-card {
        padding: 1.5rem;
    }

    .policy-card>div:first-child {
        gap: 1rem;
    }

    .policy-icon {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }

    .policy-card h3 {
        font-size: 1.125rem;
    }

    .policy-list {
        gap: 0.65rem;
    }

    .policy-list li {
        font-size: 0.875rem;
        line-height: 1.6;
    }

    .download-card {
        flex-direction: column;
        text-align: center;
        padding: 1.5rem;
    }

    .download-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }

    .download-info h4 {
        font-size: 1.125rem;
    }

    .download-info p {
        font-size: 0.8rem;
    }

    .download-card .btn {
        width: 100%;
    }

    /* Thu gọn các cards khác với icon horizontal */
    .utility-card,
    .product-card,
    .contact-card {
        padding: 1.25rem;
    }

    .utility-content,
    .product-content {
        padding: 1.25rem;
    }

    /* Utility - Mobile adjustments */
    .utility-content>div:first-child {
        gap: 1rem;
        margin-bottom: 0.75rem;
    }

    .utility-icon {
        width: 45px;
        height: 45px;
        font-size: 1.25rem;
    }

    .utility-content h3,
    .product-content h3 {
        font-size: 1.125rem;
    }

    .utility-content p,
    .product-content p {
        font-size: 0.875rem;
        margin-bottom: 0.75rem;
        line-height: 1.6;
    }

    /* Thu gọn highlights */
    .highlights {
        gap: 0.75rem;
    }

    .highlight-item {
        font-size: 0.875rem;
    }

    /* Thu gọn timeline */
    .timeline-item {
        padding-left: 60px;
        margin-bottom: 2rem;
    }

    .timeline-icon {
        width: 50px;
        height: 50px;
        font-size: 1.25rem;
    }

    .timeline-content h4 {
        font-size: 1.125rem;
    }

    .timeline-content p {
        font-size: 0.875rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    .hero-subtitle {
        font-size: 0.75rem;
        padding: 0.4rem 1rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .contact-form-wrapper {
        padding: 1.5rem;
    }
}

/* ========================================
   Print Styles
   ======================================== */

@media print {

    .header,
    .hero-controls,
    .hero-indicators,
    .floating-buttons,
    .back-to-top,
    .nav-toggle {
        display: none !important;
    }

    section {
        page-break-inside: avoid;
    }
}

/* ========================================
   Accessibility
   ======================================== */

@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus visible for keyboard navigation */
:focus-visible {
    outline: 3px solid var(--primary-color);
    outline-offset: 3px;
}