/* =====================================================
   REDLINE-DECO - Professional Construction Website
   Design System & Styles
   ===================================================== */

/* CSS Custom Properties */
:root {
    /* Colors */
    --color-primary: #1a1a1a;
    --color-primary-light: #2d2d2d;
    --color-accent: #dc2626;
    --color-accent-dark: #b91c1c;
    --color-accent-light: #ef4444;
    --color-background: #ffffff;
    --color-background-alt: #f9fafb;
    --color-text: #374151;
    --color-text-light: #6b7280;
    --color-text-muted: #9ca3af;
    --color-border: #e5e7eb;
    --color-border-light: #f3f4f6;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;
    --font-size-7xl: 4.5rem;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;

    /* Container */
    --container-max: 1200px;
    --container-padding: 1.5rem;
}

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

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

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* RTL Support */
[dir="rtl"] {
    direction: rtl;
    text-align: right;
}

[dir="rtl"] body {
    font-family: 'Tajawal', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

[dir="rtl"] .hero-cta,
[dir="rtl"] .lang-switcher {
    flex-direction: row-reverse;
}

/* Container */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-primary);
}

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

/* =====================================================
   NAVIGATION
   ===================================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border-light);
    transition: all var(--transition-base);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
}

.navbar-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
}

.logo-text {
    font-size: var(--font-size-xl);
    font-weight: 800;
    color: var(--color-primary);
    letter-spacing: -0.02em;
}

.logo-accent {
    color: var(--color-accent);
    font-weight: 800;
}

.logo-line {
    width: 100%;
    height: 3px;
    background: var(--color-accent);
    border-radius: var(--radius-full);
}

.logo-img {
    height: 45px;
    width: auto;
    max-width: 180px;
    object-fit: contain;
}

/* Light/Dark logo switching */
.logo-light {
    display: block;
}

.logo-dark {
    display: none;
}

[data-theme="dark"] .logo-light {
    display: none;
}

[data-theme="dark"] .logo-dark {
    display: block;
}

.footer-logo {
    height: 55px;
    max-width: 200px;
}

.footer-logo.logo-light {
    filter: brightness(0) invert(1);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
}

.nav-links a {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text);
    padding: var(--spacing-sm) 0;
    position: relative;
}

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

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

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

.lang-switcher {
    display: flex;
    gap: var(--spacing-xs);
}

.lang-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--color-text-light);
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.lang-btn:hover {
    border-color: var(--color-text-muted);
    color: var(--color-primary);
}

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

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--spacing-sm);
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-primary);
    transition: all var(--transition-fast);
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* =====================================================
   HERO SECTION
   ===================================================== */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(249, 250, 251, 0.9) 100%),
        url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23dc2626' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    z-index: -1;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
    align-items: center;
}

.hero-text {
    max-width: 600px;
}

.hero-title {
    font-size: var(--font-size-6xl);
    font-weight: 900;
    letter-spacing: -0.03em;
    line-height: 1;
    margin-bottom: var(--spacing-md);
}

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

.title-accent {
    color: var(--color-accent);
}

.hero-line {
    width: 380px;
    max-width: 100%;
    height: 4px;
    background: var(--color-accent);
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-xl);
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--color-text);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.6;
    white-space: pre-line;
}

.hero-stats {
    display: flex;
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-2xl);
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--color-primary);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    font-weight: 500;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

/* Hero Visual */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image-container {
    position: relative;
    width: 100%;
    max-width: 500px;
}

.hero-shape {
    position: absolute;
    top: -20px;
    right: -20px;
    width: 100%;
    height: 100%;
    background: var(--color-accent);
    opacity: 0.1;
    border-radius: var(--radius-xl);
    transform: rotate(3deg);
}

.hero-image {
    position: relative;
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    padding: var(--spacing-lg);
    /* Safety padding */
}

.hero-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
    aspect-ratio: 4/3;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-2xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    animation: bounce 2s infinite;
}

.scroll-arrow {
    width: 24px;
    height: 24px;
    border-right: 2px solid var(--color-accent);
    border-bottom: 2px solid var(--color-accent);
    transform: rotate(45deg);
}

@keyframes bounce {

    0%,
    20%,
    50%,
    80%,
    100% {
        transform: translateX(-50%) translateY(0);
    }

    40% {
        transform: translateX(-50%) translateY(-10px);
    }

    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* =====================================================
   BUTTONS
   ===================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-base);
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    border: 2px solid transparent;
}

.btn-icon {
    width: 18px;
    height: 18px;
}

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

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

.btn-secondary {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-secondary:hover {
    background: var(--color-primary);
    color: white;
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
}

/* =====================================================
   SECTIONS
   ===================================================== */

.section {
    padding: var(--spacing-4xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-tag {
    display: inline-block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-md);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
}

.section-line {
    width: 60px;
    height: 4px;
    background: var(--color-accent);
    border-radius: var(--radius-full);
    margin: 0 auto var(--spacing-lg);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* =====================================================
   ABOUT SECTION
   ===================================================== */

.about {
    background: var(--color-background-alt);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
    align-items: center;
}

.about-description {
    font-size: var(--font-size-lg);
    color: var(--color-text);
    line-height: 1.8;
    margin-bottom: var(--spacing-2xl);
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.feature {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.feature-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background: var(--color-accent);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon svg {
    width: 24px;
    height: 24px;
    stroke: white;
}

.feature-text h4 {
    font-size: var(--font-size-base);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

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

/* Stats Card */
.about-stats-visual {
    display: flex;
    justify-content: center;
}

.stats-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-xl);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    border-left: 4px solid var(--color-accent);
}

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

.stats-number {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1;
}

.stats-number .accent {
    color: var(--color-accent);
}

.stats-label {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    margin-top: var(--spacing-sm);
}

.stats-divider {
    height: 1px;
    background: var(--color-border);
}

/* =====================================================
   SERVICES SECTION
   ===================================================== */

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.service-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    border: 1px solid var(--color-border-light);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--color-accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

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

.service-card:hover::before {
    transform: scaleX(1);
}

.service-icon {
    width: 64px;
    height: 64px;
    margin-bottom: var(--spacing-lg);
}

.service-icon svg {
    width: 100%;
    height: 100%;
    stroke: var(--color-accent);
}

.service-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.service-desc {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    line-height: 1.7;
}

/* =====================================================
   PROJECTS SECTION
   ===================================================== */

.projects {
    background: var(--color-background-alt);
}

.project-filters {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-2xl);
}

.filter-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text);
    background: white;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-btn:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

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

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-xl);
}

.project-card {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
    aspect-ratio: 4/3;
}

.project-image {
    width: 100%;
    height: 100%;
}

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

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

.project-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-border-light);
}

.project-placeholder svg {
    width: 100%;
    height: 100%;
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(26, 26, 26, 0.9), transparent 60%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: var(--spacing-xl);
    opacity: 0;
    transition: opacity var(--transition-base);
}

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

.project-category {
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-xs);
}

.project-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: white;
    margin-bottom: var(--spacing-xs);
}

.project-location {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.7);
}

.project-card.hidden {
    display: none;
}

/* =====================================================
   WHY US SECTION
   ===================================================== */

.why-us-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.why-us-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--color-background-alt);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.why-us-card:hover {
    background: white;
    box-shadow: var(--shadow-md);
    transform: translateX(8px);
}

.why-us-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    background: rgba(220, 38, 38, 0.1);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}

.why-us-icon svg {
    width: 20px;
    height: 20px;
    stroke: var(--color-accent);
}

.why-us-card h4 {
    font-size: var(--font-size-base);
    font-weight: 600;
}

.why-us-card.featured {
    background: var(--color-accent);
    grid-column: 1 / -1;
}

.why-us-card.featured h4 {
    color: white;
}

.why-us-card.featured .why-us-icon {
    background: white;
}

.why-us-card.featured .why-us-icon svg {
    stroke: var(--color-accent);
}

.why-us-card.featured:hover {
    background: var(--color-accent-dark);
    transform: translateX(8px);
}

/* =====================================================
   TESTIMONIALS SECTION
   ===================================================== */

.testimonials {
    background: var(--color-background-alt);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-xl);
}

.testimonial-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-md);
    position: relative;
}

.testimonial-quote {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
}

.testimonial-quote svg {
    width: 48px;
    height: 48px;
    fill: var(--color-accent);
}

.testimonial-text {
    font-size: var(--font-size-base);
    color: var(--color-text);
    line-height: 1.8;
    margin-bottom: var(--spacing-xl);
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.author-avatar {
    width: 48px;
    height: 48px;
    background: var(--color-primary);
    color: white;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-lg);
    font-weight: 700;
}

.author-info h5 {
    font-size: var(--font-size-base);
    font-weight: 600;
}

.author-info span {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

/* =====================================================
   CONTACT SECTION
   ===================================================== */

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.contact-card {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
    padding: var(--spacing-lg);
    background: var(--color-background-alt);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.contact-card:hover {
    background: white;
    box-shadow: var(--shadow-md);
}

.contact-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background: var(--color-accent);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-icon svg {
    width: 24px;
    height: 24px;
    stroke: white;
}

.contact-text h4 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xs);
}

.contact-text a,
.contact-text p {
    font-size: var(--font-size-base);
    color: var(--color-primary);
    font-weight: 500;
}

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

.whatsapp-btn,
.call-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--color-accent);
    color: white;
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: all var(--transition-base);
    margin-top: var(--spacing-md);
}

.whatsapp-btn svg,
.call-btn svg {
    width: 20px;
    height: 20px;
}

.whatsapp-btn:hover,
.call-btn:hover {
    background: var(--color-accent-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.whatsapp-btn {
    background: #25D366;
}

.whatsapp-btn:hover {
    background: #128C7E;
}

/* Contact Form */
.contact-form-wrapper {
    background: var(--color-background-alt);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.form-group label {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: var(--spacing-md);
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: white;
    transition: all 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(220, 38, 38, 0.1);
}

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

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

.footer {
    background: var(--color-primary);
    color: white;
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-brand .logo-text,
.footer-brand .logo-accent {
    color: white;
}

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

.footer-brand p {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.6);
    margin-top: var(--spacing-md);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-links a {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.6);
    transition: color var(--transition-fast);
}

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

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-contact a {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.6);
    transition: color var(--transition-fast);
}

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

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

.footer-bottom p {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.4);
}

/* Social Media Icons */
.social-links-contact,
.social-links-footer {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.social-links-footer {
    margin-top: var(--spacing-xl);
}

.social-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.social-links-contact .social-icon {
    background: var(--color-background-alt);
    color: var(--color-primary);
}

.social-icon svg {
    width: 20px;
    height: 20px;
}

.social-icon:hover {
    background: var(--color-accent);
    color: white !important;
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

/* Dark mode adjustments for contact icons */
[data-theme="dark"] .social-links-contact .social-icon {
    background: #262626;
    color: #ffffff;
}

[data-theme="dark"] .social-links-contact .social-icon:hover {
    background: var(--color-accent);
}

/* =====================================================
   RESPONSIVE DESIGN
   ===================================================== */

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

    .hero-text {
        max-width: 100%;
    }

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

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

    .hero-line {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-visual {
        display: block;
        order: 2;
        margin-top: var(--spacing-2xl);
    }

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

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

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

    .footer-links,
    .footer-contact {
        align-items: center;
    }

    .hero-title {
        font-size: var(--font-size-4xl);
    }

    .hero-line {
        width: 200px;
    }
}

@media (max-width: 768px) {
    :root {
        --font-size-6xl: 2.5rem;
        --font-size-5xl: 2rem;
        --font-size-4xl: 1.75rem;
        --font-size-3xl: 1.5rem;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: var(--spacing-lg);
        box-shadow: var(--shadow-lg);
        gap: var(--spacing-md);
    }

    .nav-links.active {
        display: flex;
    }

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

    .navbar-content {
        position: relative;
        gap: var(--spacing-sm);
    }

    .lang-switcher {
        display: flex;
        gap: 4px;
    }

    .lang-btn {
        padding: 4px 8px;
        font-size: 10px;
        min-width: 35px;
        text-align: center;
    }

    .hero {
        min-height: auto;
        padding: 120px 0 var(--spacing-4xl);
    }

    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-lg);
    }

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

    .btn {
        width: 100%;
    }

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

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

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

    .why-us-card:hover {
        transform: translateX(0);
    }

    .scroll-indicator {
        display: none;
    }
}

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

    .hero-title {
        font-size: var(--font-size-2xl);
    }

    .hero-line {
        width: 150px;
    }

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

    .project-filters {
        gap: var(--spacing-xs);
    }

    .filter-btn {
        padding: var(--spacing-xs) var(--spacing-md);
        font-size: var(--font-size-xs);
    }
}

@media (max-width: 240px) {
    :root {
        --font-size-2xl: 1.2rem;
        --container-padding: 0.5rem;
    }

    .logo-img {
        height: 30px;
    }

    .lang-switcher {
        gap: 2px;
    }

    .lang-btn {
        padding: 2px 4px;
        font-size: 8px;
        min-width: 25px;
    }

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

    .hero-subtitle {
        font-size: var(--font-size-sm);
    }

    .hero-cta {
        gap: var(--spacing-sm);
    }

    .btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-xs);
    }

    .hero-line {
        width: 80px;
    }
}

/* =====================================================
   ANIMATIONS
   ===================================================== */

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

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

.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger animations */
.services-grid .service-card,
.projects-grid .project-card,
.testimonials-grid .testimonial-card,
.why-us-grid .why-us-card {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.5s ease;
}

.services-grid .service-card.visible,
.projects-grid .project-card.visible,
.testimonials-grid .testimonial-card.visible,
.why-us-grid .why-us-card.visible {
    opacity: 1;
    transform: translateY(0);
}

/* =====================================================
   DARK MODE
   ===================================================== */

/* Dark Mode Toggle Button */
.theme-toggle {
    position: fixed;
    bottom: 100px;
    right: 20px;
    width: 50px;
    height: 50px;
    border-radius: var(--radius-full);
    background: var(--color-primary);
    border: 2px solid var(--color-border);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-lg);
}

.theme-toggle:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-xl);
}

.theme-toggle svg {
    width: 24px;
    height: 24px;
    fill: white;
    transition: transform var(--transition-base);
}

.theme-toggle:hover svg {
    transform: rotate(15deg);
}

/* Sun icon for dark mode, moon for light mode */
.theme-toggle .sun-icon {
    display: none;
}

.theme-toggle .moon-icon {
    display: block;
}

[data-theme="dark"] .theme-toggle .sun-icon {
    display: block;
}

[data-theme="dark"] .theme-toggle .moon-icon {
    display: none;
}

/* Dark Mode Color Overrides */
[data-theme="dark"] {
    --color-primary: #ffffff;
    --color-primary-light: #e5e5e5;
    --color-background: #0f0f0f;
    --color-background-alt: #1a1a1a;
    --color-text: #e5e5e5;
    --color-text-light: #a3a3a3;
    --color-text-muted: #737373;
    --color-border: #2d2d2d;
    --color-border-light: #262626;
}

[data-theme="dark"] body {
    background-color: #0f0f0f;
    color: #e5e5e5;
}

[data-theme="dark"] .navbar {
    background: rgba(15, 15, 15, 0.95);
    border-bottom-color: #2d2d2d;
}

[data-theme="dark"] .navbar.scrolled {
    background: rgba(15, 15, 15, 0.98);
}

[data-theme="dark"] .hero-bg {
    background:
        linear-gradient(135deg, rgba(15, 15, 15, 0.95) 0%, rgba(26, 26, 26, 0.9) 100%),
        url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23dc2626' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

[data-theme="dark"] .hero-title .title-main {
    color: #ffffff;
}

[data-theme="dark"] .stat-number {
    color: #ffffff;
}

[data-theme="dark"] .about {
    background: #1a1a1a;
}

[data-theme="dark"] .service-card {
    background: #1a1a1a;
    border-color: #2d2d2d;
}

[data-theme="dark"] .service-card:hover {
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.4), 0 10px 10px -5px rgba(0, 0, 0, 0.2);
}

[data-theme="dark"] .projects {
    background: #1a1a1a;
}

[data-theme="dark"] .filter-btn {
    background: #262626;
    border-color: #2d2d2d;
    color: #e5e5e5;
}

[data-theme="dark"] .filter-btn:hover {
    border-color: var(--color-accent);
}

[data-theme="dark"] .filter-btn.active {
    background: var(--color-accent);
    border-color: var(--color-accent);
}

[data-theme="dark"] .stats-card {
    background: #262626;
}

[data-theme="dark"] .stats-number {
    color: #ffffff;
}

[data-theme="dark"] .testimonial-card {
    background: #1a1a1a;
    border-color: #2d2d2d;
}

[data-theme="dark"] .why-us {
    background: #0f0f0f;
}

[data-theme="dark"] .why-us-card {
    background: #1a1a1a;
    border-color: #2d2d2d;
}

[data-theme="dark"] .contact {
    background: #1a1a1a;
}

[data-theme="dark"] .contact-card {
    background: #262626;
    border-color: #2d2d2d;
}

[data-theme="dark"] .contact-form-wrapper {
    background: #262626;
}

[data-theme="dark"] input,
[data-theme="dark"] select,
[data-theme="dark"] textarea {
    background: #0f0f0f;
    border-color: #404040;
    color: #ffffff;
}

[data-theme="dark"] input:focus,
[data-theme="dark"] select:focus,
[data-theme="dark"] textarea:focus {
    border-color: var(--color-accent);
    background: #000000;
}

[data-theme="dark"] .footer {
    background: #0a0a0a;
}

[data-theme="dark"] .footer-logo {
    filter: none;
}

[data-theme="dark"] .logo-img {
    filter: brightness(1.1);
}

[data-theme="dark"] .lang-btn {
    border-color: #2d2d2d;
    color: #a3a3a3;
}

[data-theme="dark"] .lang-btn:hover {
    border-color: #525252;
    color: #ffffff;
}

[data-theme="dark"] .lang-btn.active {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: white;
}

[data-theme="dark"] .btn-secondary {
    color: #ffffff;
    border-color: #ffffff;
}

[data-theme="dark"] .btn-secondary:hover {
    background: #ffffff;
    color: #0f0f0f;
}

[data-theme="dark"] .section-title,
[data-theme="dark"] h1,
[data-theme="dark"] h2,
[data-theme="dark"] h3,
[data-theme="dark"] h4,
[data-theme="dark"] h5,
[data-theme="dark"] h6 {
    color: #ffffff;
}

[data-theme="dark"] .nav-links a {
    color: #a3a3a3;
}

[data-theme="dark"] .nav-links a:hover {
    color: #ffffff;
}

[data-theme="dark"] .mobile-menu-btn span {
    background: #ffffff;
}

[data-theme="dark"] .whatsapp-btn {
    background: #25d366;
}

[data-theme="dark"] .theme-toggle {
    background: #262626;
    border-color: #2d2d2d;
}

[data-theme="dark"] .theme-toggle svg {
    fill: #fbbf24;
}

/* Smooth transition for theme switch */
body,
.navbar,
.hero-bg,
.about,
.service-card,
.projects,
.filter-btn,
.stats-card,
.testimonial-card,
.why-us,
.why-us-card,
.contact,
.contact-card,
.contact-form,
.footer,
input,
select,
textarea {
    transition: background-color var(--transition-base),
        color var(--transition-base),
        border-color var(--transition-base);
}