/**
 * Americas Best Contractor - Main Stylesheet
 * Black & Silver Theme
 */

/* ============================================
   CSS Variables
   ============================================ */
:root {
    /* Primary Colors - Black */
    --color-black: #000000;
    --color-dark: #1a1a1a;
    --color-gray-900: #111827;
    --color-gray-800: #1f2937;
    --color-gray-700: #374151;
    --color-gray-600: #4b5563;

    /* Secondary Colors - Silver */
    --color-gray-500: #6b7280;
    --color-gray-400: #9ca3af;
    --color-silver: #c0c5ce;
    --color-silver-light: #d1d5db;
    --color-silver-lighter: #e5e7eb;
    --color-gray-100: #f3f4f6;
    --color-white: #ffffff;

    /* Accent Color */
    --color-accent: #0891b2;
    --color-accent-hover: #0e7490;

    /* Typography */
    --font-heading: 'Roboto Slab', serif;
    --font-body: 'Roboto', sans-serif;

    /* Layout */
    --max-width: 1400px;
    --header-height: 80px;
    --section-padding: 80px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
}

/* ============================================
   CSS Reset & Base Styles
   ============================================ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-gray-700);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

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

/* Skip Link for Accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--color-black);
    color: var(--color-white);
    padding: 8px 16px;
    z-index: 10000;
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: 0;
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-gray-900);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.25rem; }

p {
    margin-bottom: 1rem;
}

/* ============================================
   Layout Utilities
   ============================================ */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: var(--section-padding) 0;
}

.section-light {
    background-color: var(--color-gray-100);
}

.section-dark {
    background-color: var(--color-dark);
    color: var(--color-white);
}

.section-dark h2,
.section-dark h3 {
    color: var(--color-white);
}

.text-center {
    text-align: center;
}

/* ============================================
   Header & Navigation
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: linear-gradient(135deg, var(--color-black) 0%, var(--color-dark) 100%);
    z-index: 1000;
    transition: box-shadow var(--transition-normal);
}

.header.scrolled {
    box-shadow: var(--shadow-lg);
}

.header-content {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

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

.logo-text {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-silver);
    letter-spacing: 0.5px;
}

.logo-text span {
    color: var(--color-white);
}

/* Footer logo */
.footer-logo {
    height: 45px;
    width: auto;
    margin-bottom: 16px;
}

/* Navigation */
.nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-silver-light);
    text-decoration: none;
    padding: 8px 0;
    position: relative;
    transition: color var(--transition-fast);
}

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

.nav-link:hover,
.nav-link.active {
    color: var(--color-white);
}

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

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 28px;
    height: 20px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

.mobile-menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--color-silver-light);
    transition: all var(--transition-normal);
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}

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

.mobile-menu-toggle.active span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    position: relative;
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    margin-top: var(--header-height);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to bottom,
        rgba(0, 0, 0, 0.7) 0%,
        rgba(0, 0, 0, 0.5) 50%,
        rgba(0, 0, 0, 0.7) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    padding: 40px 20px;
}

.hero h1 {
    font-size: 3.5rem;
    color: var(--color-white);
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero p {
    font-size: 1.25rem;
    color: var(--color-silver-lighter);
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-home {
    min-height: 90vh;
}

.hero-home h1 {
    font-size: 4rem;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-block;
    padding: 14px 32px;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    text-align: center;
    border-radius: 4px;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: none;
}

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

.btn-primary:hover {
    background-color: var(--color-accent-hover);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-white);
    border: 2px solid var(--color-white);
}

.btn-secondary:hover {
    background-color: var(--color-white);
    color: var(--color-black);
}

.btn-dark {
    background-color: var(--color-dark);
    color: var(--color-white);
}

.btn-dark:hover {
    background-color: var(--color-black);
    color: var(--color-white);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-gray-800);
    border: 2px solid var(--color-gray-800);
}

.btn-outline:hover {
    background-color: var(--color-gray-800);
    color: var(--color-white);
}

/* ============================================
   Section Headers
   ============================================ */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    margin-bottom: 16px;
}

.section-header p {
    font-size: 1.125rem;
    color: var(--color-gray-600);
    max-width: 700px;
    margin: 0 auto;
}

.section-header-line {
    width: 60px;
    height: 3px;
    background-color: var(--color-accent);
    margin: 20px auto 0;
}

/* ============================================
   Service Cards
   ============================================ */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.service-card {
    background-color: var(--color-white);
    border-radius: 8px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.service-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--color-gray-800) 0%, var(--color-dark) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
}

.service-icon i {
    font-size: 28px;
    color: var(--color-silver);
}

.service-card h3 {
    font-size: 1.25rem;
    margin-bottom: 16px;
}

.service-card p {
    color: var(--color-gray-600);
    margin-bottom: 20px;
    font-size: 0.95rem;
}

.service-card .btn {
    padding: 10px 24px;
    font-size: 0.9rem;
}

/* ============================================
   Portfolio Gallery
   ============================================ */
.portfolio-tabs {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.portfolio-tab {
    padding: 12px 24px;
    background-color: var(--color-gray-100);
    border: none;
    border-radius: 4px;
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-gray-700);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 8px;
}

.portfolio-tab:hover {
    background-color: var(--color-gray-200, #e5e7eb);
    color: var(--color-gray-900);
}

.portfolio-tab.active {
    background-color: var(--color-dark);
    color: var(--color-white);
}

.portfolio-tab i {
    font-size: 1rem;
}

/* Portfolio Gallery Grid */
.portfolio-gallery {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.gallery-item {
    position: relative;
    aspect-ratio: 4/3;
    overflow: hidden;
    border-radius: 8px;
    cursor: pointer;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.gallery-item:hover img {
    transform: scale(1.05);
}

.gallery-item::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.4) 0%, transparent 50%);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.gallery-item:hover::after {
    opacity: 1;
}

/* ============================================
   Lightbox
   ============================================ */
.lightbox {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.95);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.lightbox.active {
    display: flex;
    opacity: 1;
}

.lightbox-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 90vh;
    object-fit: contain;
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 50%;
    color: var(--color-white);
    font-size: 24px;
    cursor: pointer;
    transition: background var(--transition-fast);
    z-index: 2001;
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 0.2);
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 50%;
    color: var(--color-white);
    font-size: 20px;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.lightbox-nav:hover {
    background: rgba(255, 255, 255, 0.2);
}

.lightbox-prev {
    left: 20px;
}

.lightbox-next {
    right: 20px;
}

/* ============================================
   About Page Styles
   ============================================ */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text h2 {
    margin-bottom: 24px;
}

.about-text p {
    color: var(--color-gray-600);
    margin-bottom: 20px;
}

.about-image {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

/* Values Grid */
.values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.value-card {
    text-align: center;
    padding: 40px 30px;
}

.value-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-hover) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.value-icon i {
    font-size: 32px;
    color: var(--color-white);
}

.value-card h3 {
    margin-bottom: 12px;
}

.value-card p {
    color: var(--color-gray-600);
    font-size: 0.95rem;
}

/* ============================================
   Contact Form
   ============================================ */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
}

.contact-info h3 {
    margin-bottom: 24px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 24px;
}

.contact-item i {
    width: 44px;
    height: 44px;
    background-color: var(--color-gray-100);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
    font-size: 18px;
    flex-shrink: 0;
}

.contact-item-text h4 {
    font-size: 1rem;
    margin-bottom: 4px;
}

.contact-item-text p,
.contact-item-text a {
    color: var(--color-gray-600);
    font-size: 0.95rem;
}

/* Contact Form */
.contact-form {
    background-color: var(--color-white);
    padding: 40px;
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
}

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

.form-group label {
    display: block;
    font-weight: 500;
    color: var(--color-gray-800);
    margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    font-family: var(--font-body);
    font-size: 1rem;
    border: 1px solid var(--color-silver-lighter);
    border-radius: 4px;
    background-color: var(--color-white);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(8, 145, 178, 0.1);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

.form-group input.error,
.form-group select.error,
.form-group textarea.error {
    border-color: #ef4444;
}

.error-message {
    color: #ef4444;
    font-size: 0.875rem;
    margin-top: 6px;
}

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

/* ============================================
   Footer
   ============================================ */
.footer {
    background: linear-gradient(135deg, var(--color-black) 0%, var(--color-dark) 100%);
    color: var(--color-silver-light);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand .logo-text {
    margin-bottom: 16px;
    display: inline-block;
}

.footer-brand p {
    color: var(--color-gray-400);
    font-size: 0.95rem;
    line-height: 1.7;
}

.footer-column h4 {
    color: var(--color-white);
    font-size: 1.1rem;
    margin-bottom: 20px;
}

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

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

.footer-links a {
    color: var(--color-gray-400);
    font-size: 0.95rem;
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid var(--color-gray-800);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-bottom p {
    color: var(--color-gray-500);
    font-size: 0.9rem;
    margin: 0;
}

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

.social-links a {
    width: 40px;
    height: 40px;
    background-color: var(--color-gray-800);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-silver);
    font-size: 18px;
    transition: all var(--transition-fast);
}

.social-links a:hover {
    background-color: var(--color-accent);
    color: var(--color-white);
}

/* ============================================
   Form Modal
   ============================================ */
.form-modal {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 3000;
    display: none;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.form-modal.active {
    display: flex;
    opacity: 1;
}

.modal-content {
    background-color: var(--color-white);
    border-radius: 12px;
    padding: 50px;
    text-align: center;
    max-width: 450px;
    width: 90%;
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    font-size: 40px;
}

.modal-icon.success {
    background-color: #d1fae5;
    color: #059669;
}

.modal-icon.error {
    background-color: #fee2e2;
    color: #dc2626;
}

.modal-content h3 {
    margin-bottom: 12px;
}

.modal-content p {
    color: var(--color-gray-600);
    margin-bottom: 24px;
}

/* ============================================
   CTA Section
   ============================================ */
.cta-section {
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-black) 100%);
    padding: 80px 0;
    text-align: center;
}

.cta-section h2 {
    color: var(--color-white);
    margin-bottom: 16px;
}

.cta-section p {
    color: var(--color-gray-400);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto 30px;
}

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

/* ============================================
   Featured Work Section
   ============================================ */
.featured-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.featured-item {
    position: relative;
    aspect-ratio: 1;
    border-radius: 8px;
    overflow: hidden;
}

.featured-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

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

.featured-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8) 0%, transparent 60%);
    display: flex;
    align-items: flex-end;
    padding: 20px;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.featured-item:hover .featured-overlay {
    opacity: 1;
}

.featured-overlay span {
    color: var(--color-white);
    font-weight: 600;
}

/* ============================================
   Service Areas
   ============================================ */
.areas-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
    margin-top: 30px;
}

.area-tag {
    background-color: var(--color-gray-100);
    padding: 10px 20px;
    border-radius: 30px;
    font-size: 0.95rem;
    color: var(--color-gray-700);
}

/* ============================================
   Smart Home Banner
   ============================================ */
.smart-home-banner {
    margin-top: 50px;
    background: linear-gradient(135deg, var(--color-gray-100) 0%, var(--color-silver-lighter) 100%);
    border-radius: 12px;
    padding: 40px;
    border: 1px solid var(--color-silver-lighter);
}

.smart-home-banner-content {
    display: flex;
    align-items: center;
    gap: 30px;
}

.smart-home-banner-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-hover) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.smart-home-banner-icon i {
    font-size: 28px;
    color: var(--color-white);
}

.smart-home-banner-text {
    flex: 1;
}

.smart-home-banner-text h3 {
    font-size: 1.5rem;
    margin-bottom: 8px;
    color: var(--color-gray-900);
}

.smart-home-banner-text p {
    color: var(--color-gray-600);
    margin: 0;
    font-size: 1rem;
}

.smart-home-banner .btn {
    flex-shrink: 0;
}

/* ============================================
   Smart Home Page Styles
   ============================================ */
.smart-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-top: 20px;
}

.smart-step {
    text-align: center;
    padding: 30px 20px;
    position: relative;
}

.smart-step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-hover) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-white);
}

.smart-step h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.smart-step p {
    color: var(--color-gray-600);
    font-size: 0.95rem;
}

.smart-step a {
    color: var(--color-accent);
    font-weight: 500;
}

/* Smart Devices Grid */
.smart-devices-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.smart-device-card {
    background-color: var(--color-white);
    border-radius: 8px;
    padding: 30px 24px;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

.smart-device-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.smart-device-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--color-gray-800) 0%, var(--color-dark) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
}

.smart-device-icon i {
    font-size: 24px;
    color: var(--color-silver);
}

.smart-device-card h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.smart-device-card p {
    color: var(--color-gray-600);
    font-size: 0.9rem;
    margin: 0;
}

/* Benefits Grid */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.benefit-card {
    text-align: center;
    padding: 40px 30px;
    background-color: var(--color-white);
    border-radius: 8px;
    box-shadow: var(--shadow-md);
}

.benefit-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-hover) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.benefit-icon i {
    font-size: 32px;
    color: var(--color-white);
}

.benefit-card h3 {
    margin-bottom: 12px;
}

.benefit-card p {
    color: var(--color-gray-600);
    font-size: 0.95rem;
    margin: 0;
}

/* Partner Section */
.partner-section {
    background-color: var(--color-white);
    border-radius: 12px;
    padding: 50px;
    box-shadow: var(--shadow-lg);
}

.partner-content h2 {
    margin-bottom: 20px;
}

.partner-content > p {
    color: var(--color-gray-600);
    font-size: 1.05rem;
    line-height: 1.8;
    margin-bottom: 24px;
}

.partner-features {
    list-style: none;
    margin-bottom: 30px;
}

.partner-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
    color: var(--color-gray-700);
}

.partner-features li i {
    color: var(--color-accent);
    font-size: 1rem;
}

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

/* Tablet */
@media (max-width: 1024px) {
    :root {
        --section-padding: 60px;
    }

    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }

    .hero h1 { font-size: 2.75rem; }
    .hero-home h1 { font-size: 3rem; }

    .services-grid,
    .values-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .portfolio-gallery {
        grid-template-columns: repeat(3, 1fr);
    }

    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-content {
        gap: 40px;
    }

    /* Smart Home Tablet */
    .smart-devices-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

/* Mobile */
@media (max-width: 768px) {
    :root {
        --header-height: 70px;
        --section-padding: 50px;
    }

    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }

    .hero {
        min-height: 60vh;
    }

    .hero h1 {
        font-size: 2.25rem;
    }

    .hero-home {
        min-height: 70vh;
    }

    .hero-home h1 {
        font-size: 2.5rem;
    }

    .hero p {
        font-size: 1.1rem;
    }

    /* Mobile Navigation */
    .nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: var(--color-dark);
        flex-direction: column;
        padding: 20px;
        gap: 0;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-normal);
    }

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

    .nav-link {
        display: block;
        padding: 16px 0;
        border-bottom: 1px solid var(--color-gray-800);
        width: 100%;
    }

    .nav-link:last-child {
        border-bottom: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    /* Grids */
    .services-grid,
    .values-grid {
        grid-template-columns: 1fr;
    }

    .portfolio-gallery {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .featured-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .about-image {
        order: -1;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .contact-form {
        padding: 30px 20px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }

    .btn {
        padding: 12px 24px;
        width: 100%;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .cta-buttons .btn {
        max-width: 280px;
    }

    .portfolio-tabs {
        gap: 8px;
    }

    .portfolio-tab {
        padding: 10px 16px;
        font-size: 0.875rem;
    }

    /* Smart Home Mobile */
    .smart-home-banner {
        padding: 30px 20px;
        margin-top: 40px;
    }

    .smart-home-banner-content {
        flex-direction: column;
        text-align: center;
        gap: 20px;
    }

    .smart-home-banner-icon {
        width: 60px;
        height: 60px;
    }

    .smart-home-banner-icon i {
        font-size: 24px;
    }

    .smart-home-banner .btn {
        width: 100%;
        max-width: 200px;
    }

    .smart-steps {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .smart-devices-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .smart-device-card {
        padding: 24px 16px;
    }

    .benefits-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .benefit-card {
        padding: 30px 20px;
    }

    .partner-section {
        padding: 30px 20px;
    }

    /* Lightbox Mobile */
    .lightbox-nav {
        width: 40px;
        height: 40px;
        font-size: 16px;
    }

    .lightbox-prev {
        left: 10px;
    }

    .lightbox-next {
        right: 10px;
    }

    .lightbox-close {
        top: 10px;
        right: 10px;
        width: 40px;
        height: 40px;
        font-size: 20px;
    }
}

/* ============================================
   Floating Contact Button
   ============================================ */
.floating-contact {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 999;
    display: flex;
    align-items: center;
    gap: 12px;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-hover) 100%);
    color: var(--color-white);
    padding: 16px 24px;
    border-radius: 50px;
    text-decoration: none;
    box-shadow: 0 4px 20px rgba(8, 145, 178, 0.4);
    transition: all var(--transition-normal);
    font-weight: 600;
    font-size: 1rem;
}

.floating-contact:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(8, 145, 178, 0.5);
    color: var(--color-white);
}

.floating-contact i {
    font-size: 1.25rem;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
    }
}

.floating-contact-text {
    display: inline;
}

/* Floating button mobile */
@media (max-width: 768px) {
    .floating-contact {
        bottom: 20px;
        right: 20px;
        padding: 14px 20px;
        font-size: 0.9rem;
    }

    .floating-contact-text {
        display: none;
    }

    .floating-contact {
        padding: 16px;
        border-radius: 50%;
    }
}

/* Hero short variant for pages with less content */
.hero-short {
    min-height: 50vh;
}

/* ============================================
   Blog Pagination
   ============================================ */
.blog-pagination {
    margin-top: 60px;
    display: flex;
    justify-content: center;
}

.pagination-list {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
    padding: 0;
    margin: 0;
}

.pagination-link {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    height: 44px;
    padding: 0 16px;
    border-radius: 8px;
    background-color: var(--color-white);
    color: var(--color-gray-700);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    border: 1px solid var(--color-silver-lighter);
    transition: all var(--transition-fast);
}

.pagination-link:hover {
    background-color: var(--color-gray-100);
    border-color: var(--color-gray-400);
    color: var(--color-gray-900);
}

.pagination-link.active {
    background-color: var(--color-dark);
    color: var(--color-white);
    border-color: var(--color-dark);
}

.pagination-link.active:hover {
    background-color: var(--color-black);
}

.pagination-ellipsis {
    padding: 0 8px;
    color: var(--color-gray-500);
}

.pagination-prev,
.pagination-next {
    gap: 8px;
}

@media (max-width: 768px) {
    .pagination-list {
        gap: 4px;
    }

    .pagination-link {
        min-width: 40px;
        height: 40px;
        padding: 0 10px;
        font-size: 0.875rem;
    }

    .pagination-prev span,
    .pagination-next span {
        display: none;
    }
}

/* ============================================
   Blog Search
   ============================================ */
.blog-search {
    max-width: 500px;
    margin: 0 auto 40px;
}

.blog-search-form {
    display: flex;
    gap: 12px;
}

.blog-search-input {
    flex: 1;
    padding: 14px 20px;
    font-family: var(--font-body);
    font-size: 1rem;
    border: 1px solid var(--color-silver-lighter);
    border-radius: 8px;
    background-color: var(--color-white);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.blog-search-input:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(8, 145, 178, 0.1);
}

.blog-search-btn {
    padding: 14px 24px;
    background-color: var(--color-dark);
    color: var(--color-white);
    border: none;
    border-radius: 8px;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 8px;
}

.blog-search-btn:hover {
    background-color: var(--color-black);
}

.blog-search-results {
    text-align: center;
    margin-bottom: 30px;
    color: var(--color-gray-600);
}

.blog-search-results a {
    color: var(--color-accent);
    text-decoration: underline;
}

@media (max-width: 768px) {
    .blog-search-form {
        flex-direction: column;
    }

    .blog-search-btn {
        justify-content: center;
    }
}

/* ============================================
   Related Posts
   ============================================ */
.related-posts {
    margin-top: 60px;
    padding-top: 60px;
    border-top: 1px solid var(--color-silver-lighter);
}

.related-posts h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: 30px;
    text-align: center;
}

.related-posts-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.related-post-card {
    background: var(--color-white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.related-post-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.related-post-image {
    width: 100%;
    height: 160px;
    object-fit: cover;
}

.related-post-content {
    padding: 20px;
}

.related-post-category {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-accent);
    margin-bottom: 8px;
}

.related-post-title {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.4;
    margin: 0;
}

.related-post-title a {
    color: var(--color-gray-900);
    text-decoration: none;
}

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

@media (max-width: 768px) {
    .related-posts-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

/* ============================================
   Post Navigation (Prev/Next)
   ============================================ */
.post-navigation {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-top: 40px;
    padding-top: 40px;
    border-top: 1px solid var(--color-silver-lighter);
}

.post-nav-link {
    display: flex;
    flex-direction: column;
    padding: 20px;
    background: var(--color-gray-100);
    border-radius: 8px;
    text-decoration: none;
    transition: background-color var(--transition-fast);
}

.post-nav-link:hover {
    background: var(--color-silver-lighter);
}

.post-nav-link.next {
    text-align: right;
}

.post-nav-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-gray-500);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.post-nav-link.next .post-nav-label {
    justify-content: flex-end;
}

.post-nav-title {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-gray-900);
    line-height: 1.4;
}

@media (max-width: 768px) {
    .post-navigation {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .post-nav-link.next {
        text-align: left;
    }

    .post-nav-link.next .post-nav-label {
        justify-content: flex-start;
    }
}

/* ============================================
   Blog Category Filter
   ============================================ */
.blog-filters {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.blog-filter-btn {
    padding: 10px 20px;
    background-color: var(--color-gray-100);
    border: none;
    border-radius: 30px;
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-gray-700);
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.blog-filter-btn:hover {
    background-color: var(--color-silver-lighter);
    color: var(--color-gray-900);
}

.blog-filter-btn.active {
    background-color: var(--color-dark);
    color: var(--color-white);
}

/* Small Mobile */
@media (max-width: 480px) {
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }

    .hero h1 {
        font-size: 1.875rem;
    }

    .hero-home h1 {
        font-size: 2rem;
    }

    .container {
        padding: 0 16px;
    }

    .section-header {
        margin-bottom: 40px;
    }

    .service-card {
        padding: 30px 20px;
    }

    .modal-content {
        padding: 30px 20px;
    }
}