/* ==========================================
   USOOL Sustainable Construction - Main Styles
   ========================================== */

/* CSS Variables */
:root {
    --primary: #1a5d4a;
    --primary-dark: #0d3d2e;
    --primary-light: #2a8f6f;
    --accent: #c9a962;
    --accent-light: #e8d5a3;
    --dark: #0a1612;
    --light: #f8f6f1;
    --gray: #6b7c75;
    --white: #ffffff;
    
    --shadow-sm: 0 4px 15px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 15px 40px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 30px 60px rgba(0, 0, 0, 0.2);
    
    --transition: all 0.3s ease;
    --transition-slow: all 0.4s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Cairo', sans-serif;
    background: var(--light);
    color: var(--dark);
    overflow-x: hidden;
    line-height: 1.6;
}

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

ul {
    list-style: none;
}

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

/* Background Pattern */
.bg-pattern {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    opacity: 0.03;
    z-index: -1;
    background-image: 
        repeating-linear-gradient(45deg, var(--primary) 0, var(--primary) 1px, transparent 0, transparent 50%),
        repeating-linear-gradient(-45deg, var(--primary) 0, var(--primary) 1px, transparent 0, transparent 50%);
    background-size: 60px 60px;
}

/* ==========================================
   Navigation
   ========================================== */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 1rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    background: var(--white);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    transition: var(--transition-slow);
}

nav.scrolled {
    background: var(--white);
    padding: 0.8rem 5%;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.15);
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-img {
    width: 50px;
    height: 50px;
    object-fit: contain;
    transition: var(--transition);
}

nav.scrolled .logo-img {
    width: 40px;
    height: 40px;
}

.logo-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    color: var(--primary-dark);
    font-size: 1.5rem;
    transform: rotate(-5deg);
    box-shadow: 0 4px 15px rgba(201, 169, 98, 0.3);
}

.logo-text {
    color: var(--dark);
    font-size: 1.3rem;
    font-weight: 700;
}

.logo-text span {
    display: block;
    font-size: 0.7rem;
    font-weight: 300;
    color: var(--primary);
    letter-spacing: 2px;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
}

.nav-links a {
    color: var(--dark);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    padding: 0.5rem 0;
    transition: var(--transition);
}

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

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

.nav-links a:hover::after {
    width: 100%;
}

.nav-cta {
    background: var(--primary);
    color: var(--white);
    padding: 0.8rem 2rem;
    border-radius: 50px;
    font-weight: 700;
    transition: var(--transition);
    box-shadow: 0 4px 20px rgba(26, 93, 74, 0.3);
}

.nav-cta:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(26, 93, 74, 0.4);
}

/* Mobile Menu Toggle */
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
    z-index: 1001;
}

.mobile-toggle span {
    width: 30px;
    height: 3px;
    background: var(--dark);
    border-radius: 3px;
    transition: var(--transition);
}

.mobile-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

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

.mobile-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 400px;
    height: 100vh;
    background: var(--dark);
    z-index: 999;
    padding: 100px 2rem 2rem;
    transition: var(--transition-slow);
}

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

.mobile-menu ul {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.mobile-menu a {
    color: var(--white);
    font-size: 1.2rem;
    font-weight: 600;
    display: block;
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

/* ==========================================
   Hero Section
   ========================================== */
.hero {
    min-height: 100vh;
    background: linear-gradient(135deg, var(--dark) 0%, var(--primary-dark) 50%, var(--primary) 100%);
    position: relative;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 70%, rgba(201, 169, 98, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 70% 30%, rgba(42, 143, 111, 0.15) 0%, transparent 50%);
    animation: heroFloat 20s ease-in-out infinite;
}

@keyframes heroFloat {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    50% { transform: translate(-5%, 5%) rotate(5deg); }
}

.hero-content {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 5%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-text h1 {
    font-size: 4rem;
    font-weight: 900;
    color: var(--white);
    line-height: 1.1;
    margin-bottom: 1.5rem;
    animation: fadeInUp 1s ease;
}

.hero-tag {
    display: block;
    color: var(--accent);
    font-size: 1.2rem;
    font-weight: 400;
    letter-spacing: 4px;
    margin-bottom: 1rem;
}

.hero-text p {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
    margin-bottom: 2.5rem;
    animation: fadeInUp 1s ease 0.2s both;
}

.hero-btns {
    display: flex;
    gap: 1.5rem;
    animation: fadeInUp 1s ease 0.4s both;
}

.btn-primary {
    background: var(--accent);
    color: var(--primary-dark);
    padding: 1.2rem 3rem;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1.1rem;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
}

.btn-primary:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(201, 169, 98, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    padding: 1.2rem 3rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
    transition: var(--transition);
}

.btn-secondary:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-5px);
}

.hero-visual {
    position: relative;
    animation: fadeIn 1.5s ease;
}

.hero-image {
    width: 100%;
    height: 500px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary-dark));
    border-radius: 30px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-image-content {
    padding: 2rem;
}

.building-icon {
    width: 200px;
    height: 200px;
}

.floating-badge {
    position: absolute;
    background: var(--white);
    padding: 1.2rem 1.8rem;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    animation: float 4s ease-in-out infinite;
    text-align: center;
}

.floating-badge.badge-1 {
    top: 10%;
    right: -30px;
    animation-delay: 0s;
}

.floating-badge.badge-2 {
    bottom: 20%;
    left: -40px;
    animation-delay: 1s;
}

.floating-badge.badge-3 {
    bottom: 5%;
    right: 10%;
    animation-delay: 2s;
}

.floating-badge strong {
    display: block;
    font-size: 1.8rem;
    color: var(--primary);
}

.floating-badge span {
    font-size: 0.85rem;
    color: var(--gray);
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* ==========================================
   Stats Section
   ========================================== */
.stats {
    background: var(--white);
    padding: 5rem 5%;
    margin-top: -80px;
    position: relative;
    z-index: 10;
}

.stats-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    background: var(--white);
    border-radius: 30px;
    padding: 3rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
}

.stat-item {
    text-align: center;
    padding: 1.5rem;
    border-left: 1px solid rgba(0, 0, 0, 0.08);
}

.stat-item:last-child {
    border-left: none;
}

.stat-number {
    font-size: 3.5rem;
    font-weight: 900;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-number span {
    font-size: 1.5rem;
    color: var(--accent);
}

.stat-label {
    font-size: 1rem;
    color: var(--gray);
    font-weight: 500;
}

/* ==========================================
   Section Common Styles
   ========================================== */
.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 5rem;
}

.section-tag {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    color: var(--white);
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    letter-spacing: 2px;
}

.section-title {
    font-size: 3rem;
    font-weight: 900;
    color: var(--dark);
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.section-title span {
    color: var(--primary);
}

.section-desc {
    font-size: 1.15rem;
    color: var(--gray);
    line-height: 1.8;
}

/* ==========================================
   About Section
   ========================================== */
.about {
    padding: 8rem 5%;
    background: var(--light);
}

.about-content {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
}

.about-image {
    position: relative;
}

.about-img-main {
    width: 100%;
    height: 500px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 30px;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.about-img-main img {
    width: 80%;
    opacity: 0.3;
}

.about-img-overlay {
    position: absolute;
    bottom: -30px;
    left: -30px;
    width: 200px;
    height: 200px;
    background: var(--accent);
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--primary-dark);
    box-shadow: 0 20px 50px rgba(201, 169, 98, 0.4);
}

.about-img-overlay strong {
    font-size: 4rem;
    font-weight: 900;
    line-height: 1;
}

.about-img-overlay span {
    font-size: 1rem;
    font-weight: 600;
}

.about-text h3 {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 1.5rem;
    line-height: 1.3;
}

.about-text p {
    font-size: 1.1rem;
    color: var(--gray);
    line-height: 1.9;
    margin-bottom: 2rem;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-top: 2rem;
}

.about-feature {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.about-feature-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.about-feature-icon img {
    width: 24px;
    height: 24px;
}

.about-feature h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 0.3rem;
}

.about-feature p {
    font-size: 0.9rem;
    color: var(--gray);
    margin: 0;
}

/* ==========================================
   Products Section
   ========================================== */
.products {
    padding: 8rem 5%;
    background: var(--dark);
    position: relative;
    overflow: hidden;
}

.products::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 80%, rgba(42, 143, 111, 0.2) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(201, 169, 98, 0.1) 0%, transparent 50%);
}

.products .section-title {
    color: var(--white);
}

.products .section-desc {
    color: rgba(255, 255, 255, 0.7);
}

.products-grid {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    position: relative;
    z-index: 2;
}

.product-card {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
    border-radius: 25px;
    padding: 2.5rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    transition: var(--transition-slow);
    position: relative;
    overflow: hidden;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-light), var(--accent));
    transform: scaleX(0);
    transform-origin: right;
    transition: var(--transition-slow);
}

.product-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent);
    box-shadow: var(--shadow-lg);
}

.product-card:hover::before {
    transform: scaleX(1);
    transform-origin: left;
}

.product-card-featured {
    padding: 0;
    display: flex;
    flex-direction: column;
    background: var(--white);
}

.product-card-featured .product-image {
    width: 100%;
    height: 220px;
    overflow: hidden;
    border-radius: 25px 25px 0 0;
    position: relative;
    cursor: pointer;
}

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

.product-card-featured:hover .product-image img {
    transform: scale(1.05);
}

.zoom-icon {
    position: absolute;
    bottom: 10px;
    left: 10px;
    width: 40px;
    height: 40px;
    background: rgba(26, 93, 74, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.product-card-featured:hover .zoom-icon {
    opacity: 1;
}

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: 9999;
    justify-content: center;
    align-items: center;
    cursor: pointer;
}

.lightbox.active {
    display: flex;
}

.lightbox img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
    border-radius: 10px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 30px;
    font-size: 50px;
    color: white;
    cursor: pointer;
    transition: var(--transition);
}

.lightbox-close:hover {
    color: var(--accent);
    transform: scale(1.1);
}

.product-card-featured .product-content {
    padding: 1.5rem 2rem 2rem;
}

.product-card-featured h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 0.8rem;
}

.product-card-featured p {
    color: var(--gray);
    line-height: 1.6;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.product-card-featured .product-list li {
    color: var(--gray);
}

.product-card-featured .product-list li::before {
    color: var(--primary);
}

.product-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    box-shadow: 0 10px 30px rgba(26, 93, 74, 0.3);
}

.product-icon img {
    width: 40px;
    height: 40px;
}

.product-card h3 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 1rem;
}

.product-card p {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.product-list li {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.product-list li:last-child {
    border-bottom: none;
}

.product-list li::before {
    content: '✓';
    color: var(--accent);
    font-weight: bold;
}

/* ==========================================
   Services Section
   ========================================== */
.services {
    padding: 8rem 5%;
    background: var(--white);
}

.services-grid {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.service-card {
    background: var(--light);
    border-radius: 30px;
    padding: 3rem;
    position: relative;
    overflow: hidden;
    transition: var(--transition-slow);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 150px;
    height: 150px;
    background: linear-gradient(135deg, var(--primary-light), transparent);
    border-radius: 0 30px 0 100%;
    opacity: 0.1;
    transition: var(--transition-slow);
}

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

.service-card:hover::before {
    opacity: 0.2;
    width: 200px;
    height: 200px;
}

.service-number {
    font-size: 5rem;
    font-weight: 900;
    color: var(--primary);
    opacity: 0.1;
    position: absolute;
    top: 1rem;
    left: 2rem;
    line-height: 1;
}

.service-card h3 {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 1rem;
    position: relative;
}

.service-card p {
    font-size: 1rem;
    color: var(--gray);
    line-height: 1.8;
    margin-bottom: 1.5rem;
    position: relative;
}

.service-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    position: relative;
}

.service-feature-tag {
    background: var(--white);
    color: var(--primary);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    border: 1px solid rgba(26, 93, 74, 0.2);
}

/* ==========================================
   Projects/Portfolio Section
   ========================================== */
.projects {
    padding: 8rem 5%;
    background: var(--light);
}

.projects-grid {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.project-card {
    background: var(--white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-slow);
}

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

.project-image {
    position: relative;
    height: 220px;
    overflow: hidden;
    cursor: pointer;
}

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

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

.project-image .zoom-icon {
    position: absolute;
    bottom: 10px;
    left: 10px;
    width: 40px;
    height: 40px;
    background: rgba(26, 93, 74, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
    z-index: 5;
}

.project-card:hover .project-image .zoom-icon {
    opacity: 1;
}

.play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 70px;
    height: 70px;
    background: rgba(26, 93, 74, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    z-index: 5;
}

.play-button:hover {
    background: var(--primary);
    transform: translate(-50%, -50%) scale(1.1);
}

.play-button svg {
    margin-right: -3px;
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(10, 22, 18, 0.8), transparent);
    display: flex;
    align-items: flex-end;
    padding: 1.5rem;
    opacity: 0;
    transition: var(--transition);
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-category {
    background: var(--accent);
    color: var(--primary-dark);
    padding: 0.4rem 1rem;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
}

.project-info {
    padding: 1.5rem;
}

.project-info h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 0.5rem;
}

.project-info p {
    font-size: 0.9rem;
    color: var(--gray);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.project-tags {
    display: flex;
    gap: 0.5rem;
}

.project-tags span {
    background: var(--light);
    color: var(--primary);
    padding: 0.3rem 0.8rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
}

/* ==========================================
   Certifications Section
   ========================================== */
.certifications {
    padding: 6rem 5%;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    position: relative;
}

.certifications::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'%3E%3Ccircle cx='50' cy='50' r='40' fill='none' stroke='%23fff' stroke-width='0.5' opacity='0.1'/%3E%3C/svg%3E") repeat;
    background-size: 100px 100px;
}

.cert-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 4rem;
    position: relative;
    z-index: 2;
}

.cert-text h2 {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 1rem;
}

.cert-text p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
}

.cert-badges {
    display: flex;
    gap: 2rem;
}

.cert-badge {
    width: 120px;
    height: 120px;
    background: var(--white);
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    text-align: center;
}

.cert-badge:hover {
    transform: translateY(-10px) rotate(5deg);
}

.cert-badge strong {
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--primary);
}

.cert-badge span {
    font-size: 0.75rem;
    color: var(--gray);
}

/* ==========================================
   Contact Section
   ========================================== */
.contact {
    padding: 8rem 5%;
    background: var(--light);
}

.contact-content {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
}

.contact-info h3 {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 1.5rem;
}

.contact-info > p {
    font-size: 1.1rem;
    color: var(--gray);
    line-height: 1.8;
    margin-bottom: 2.5rem;
}

.contact-details li {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 1.5rem 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.contact-details li:last-child {
    border-bottom: none;
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon img {
    width: 28px;
    height: 28px;
}

.contact-text strong {
    display: block;
    font-size: 1.1rem;
    color: var(--dark);
    margin-bottom: 0.3rem;
}

.contact-text span {
    color: var(--gray);
    font-size: 1rem;
}

.contact-form {
    background: var(--white);
    border-radius: 30px;
    padding: 3rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
}

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

.form-group label {
    display: block;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 0.8rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1.2rem 1.5rem;
    border: 2px solid rgba(0, 0, 0, 0.08);
    border-radius: 15px;
    font-family: 'Cairo', sans-serif;
    font-size: 1rem;
    transition: var(--transition);
    background: var(--light);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--white);
}

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

.form-submit {
    width: 100%;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
    padding: 1.3rem;
    border: none;
    border-radius: 15px;
    font-family: 'Cairo', sans-serif;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
}

.form-submit:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(26, 93, 74, 0.3);
}

/* ==========================================
   Footer
   ========================================== */
footer {
    background: var(--white);
    padding: 5rem 5% 2rem;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 4rem;
    padding-bottom: 4rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.footer-brand .logo {
    margin-bottom: 1.5rem;
}

.footer-brand p {
    color: var(--gray);
    line-height: 1.8;
    margin-bottom: 2rem;
}

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

.social-link {
    width: 45px;
    height: 45px;
    background: var(--light);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary);
    transform: translateY(-5px);
}

.social-link img {
    width: 20px;
    height: 20px;
    filter: brightness(0) saturate(100%) invert(29%) sepia(13%) saturate(1095%) hue-rotate(115deg) brightness(95%) contrast(89%);
}

.social-link:hover img {
    filter: brightness(0) invert(1);
}

.footer-links h4 {
    color: var(--dark);
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.footer-links li {
    margin-bottom: 0.8rem;
}

.footer-links a {
    color: var(--gray);
    transition: var(--transition);
}

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

.footer-bottom {
    max-width: 1400px;
    margin: 0 auto;
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.footer-bottom span {
    color: var(--primary);
}

/* ==========================================
   Responsive Design
   ========================================== */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

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

    .hero-btns {
        justify-content: center;
    }

    .hero-visual {
        display: none;
    }

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

    .stat-item {
        border-left: none;
        border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    }

    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
    }

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

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

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

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

@media (max-width: 768px) {
    .nav-links,
    .nav-cta {
        display: none;
    }

    .mobile-toggle {
        display: flex;
    }

    .hero-text h1 {
        font-size: 2.2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .stats-container {
        grid-template-columns: 1fr;
    }

    .products-grid {
        grid-template-columns: 1fr;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .cert-content {
        flex-direction: column;
        text-align: center;
    }

    .cert-badges {
        flex-wrap: wrap;
        justify-content: center;
    }

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

    .social-links {
        justify-content: center;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .about-img-overlay {
        position: relative;
        bottom: auto;
        left: auto;
        margin: -50px auto 0;
        width: 150px;
        height: 150px;
    }

    .about-img-overlay strong {
        font-size: 3rem;
    }

    .about-features {
        grid-template-columns: 1fr;
    }
}

/* ==========================================
   Utility Classes
   ========================================== */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }

.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }

.hidden { display: none; }
.visible { display: block; }