/* ==========================================================================
   Yılda Mühendislik - Main Design System & Stylesheet
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design Variables & Tokens
   -------------------------------------------------------------------------- */
:root {
    /* Brand Colors */
    --primary-cobalt: hsl(215, 90%, 45%);
    --primary-cobalt-hover: hsl(215, 90%, 35%);
    --primary-orange: hsl(24, 95%, 55%);
    --primary-orange-hover: hsl(24, 95%, 45%);
    --accent-ice: hsl(195, 85%, 93%);
    --accent-soft: hsl(210, 30%, 94%);
    
    /* Backgrounds */
    --bg-light: hsl(210, 30%, 98%);
    --bg-white: hsl(0, 0%, 100%);
    --bg-dark: hsl(220, 35%, 10%);
    --bg-dark-card: hsl(220, 35%, 14%);
    
    /* Text Colors */
    --text-dark: hsl(220, 25%, 15%);
    --text-muted: hsl(220, 15%, 50%);
    --text-light: hsl(210, 25%, 95%);
    
    /* UI Details */
    --font-heading: 'Outfit', 'Inter', sans-serif;
    --font-body: 'Inter', sans-serif;
    --border-radius-sm: 8px;
    --border-radius-md: 16px;
    --border-radius-lg: 24px;
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.03);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    
    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.8);
    --glass-border: rgba(255, 255, 255, 0.4);
    --glass-blur: blur(12px);
}

/* --------------------------------------------------------------------------
   2. Reset & Core Typography
   -------------------------------------------------------------------------- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--bg-dark);
}

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

ul {
    list-style: none;
}

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

/* --------------------------------------------------------------------------
   3. Global Layout Utilities
   -------------------------------------------------------------------------- */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: 6rem 0;
    position: relative;
}

.section-dark {
    background-color: var(--bg-dark);
    color: var(--text-light);
}

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

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem auto;
}

.section-header h2 {
    font-size: 2.5rem;
    position: relative;
    padding-bottom: 1rem;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-cobalt), var(--primary-orange));
    border-radius: 2px;
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-top: 1rem;
}

.section-dark .section-header p {
    color: hsl(220, 15%, 75%);
}

.d-none-mobile {
    display: inherit;
}

/* Grids */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

/* Flexes */
.flex-between {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* --------------------------------------------------------------------------
   4. Buttons & UI Elements
   -------------------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-weight: 600;
    padding: 0.8rem 1.8rem;
    border-radius: var(--border-radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition-smooth);
    font-size: 0.95rem;
    gap: 0.5rem;
}

.btn-primary {
    background-color: var(--primary-cobalt);
    color: var(--bg-white);
    box-shadow: 0 4px 14px rgba(26, 86, 219, 0.3);
}

.btn-primary:hover {
    background-color: var(--primary-cobalt-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(26, 86, 219, 0.4);
}

.btn-secondary {
    background-color: var(--primary-orange);
    color: var(--bg-white);
    box-shadow: 0 4px 14px rgba(249, 115, 22, 0.3);
}

.btn-secondary:hover {
    background-color: var(--primary-orange-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(249, 115, 22, 0.4);
}

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

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

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

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

/* --------------------------------------------------------------------------
   5. Header & Top Bar Navigation
   -------------------------------------------------------------------------- */
/* Top Bar */
.top-bar {
    background-color: var(--bg-dark);
    color: var(--text-light);
    font-size: 0.85rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

.top-info {
    display: flex;
    gap: 1.5rem;
}

.top-info span i {
    color: var(--primary-orange);
    margin-right: 0.3rem;
}

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

.top-social a {
    color: var(--text-light);
    opacity: 0.8;
}

.top-social a:hover {
    opacity: 1;
    color: var(--primary-orange);
}

.admin-badge {
    background-color: var(--primary-cobalt);
    color: var(--bg-white) !important;
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
}

/* Sticky Main Header */
.main-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--glass-border);
    transition: var(--transition-smooth);
}

.main-header.scrolled {
    padding: 0.5rem 0;
    box-shadow: var(--shadow-md);
    background-color: rgba(255, 255, 255, 0.95);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
    transition: var(--transition-smooth);
}

.main-header.scrolled .header-container {
    height: 70px;
}

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

.main-header.scrolled .logo img {
    height: 42px;
}

/* Nav Menu */
.nav-menu ul {
    display: flex;
    gap: 2rem;
}

.nav-menu ul li a {
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--text-dark);
    font-size: 1rem;
    position: relative;
    padding: 0.5rem 0;
}

.nav-menu ul li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-cobalt);
    transition: var(--transition-fast);
}

.nav-menu ul li a:hover::after,
.nav-menu ul li a.active::after {
    width: 100%;
}

.nav-menu ul li a:hover {
    color: var(--primary-cobalt);
}

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

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-dark);
    font-size: 1.5rem;
    cursor: pointer;
}

.cta-mobile-only {
    display: none;
}

/* --------------------------------------------------------------------------
   6. Hero Banner Slider
   -------------------------------------------------------------------------- */
.hero-slider {
    position: relative;
    height: calc(100vh - 110px);
    min-height: 550px;
    max-height: 800px;
    background-color: var(--bg-dark);
    overflow: hidden;
}

.slider-container {
    width: 100%;
    height: 100%;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    transition: opacity 1s ease-in-out, visibility 1s ease-in-out;
    display: flex;
    align-items: center;
    z-index: 1;
}

.slide.active {
    opacity: 1;
    visibility: visible;
    z-index: 2;
}

.slide-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.slide-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    filter: brightness(0.4);
}

.slide-content {
    position: relative;
    z-index: 2;
    color: var(--text-light);
    max-width: 650px;
    padding-top: 2rem;
}

.slide-subtitle {
    font-family: var(--font-heading);
    color: var(--primary-orange);
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 700;
    font-size: 0.9rem;
    margin-bottom: 0.8rem;
    display: inline-block;
    transform: translateY(30px);
    opacity: 0;
    transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1) 0.2s;
}

.slide-title {
    font-size: 3.5rem;
    line-height: 1.1;
    font-weight: 800;
    color: var(--bg-white);
    margin-bottom: 1.5rem;
    transform: translateY(40px);
    opacity: 0;
    transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1) 0.4s;
}

.slide-desc {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1) 0.6s;
    color: hsl(210, 15%, 85%);
}

.slide-cta {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1) 0.8s;
}

/* Animations for Active Slide Content */
.slide.active .slide-subtitle,
.slide.active .slide-title,
.slide.active .slide-desc,
.slide.active .slide-cta {
    transform: translateY(0);
    opacity: 1;
}

/* Slider Controls */
.slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    color: var(--bg-white);
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    transition: var(--transition-fast);
    backdrop-filter: blur(4px);
}

.slider-arrow:hover {
    background-color: var(--primary-cobalt);
    border-color: var(--primary-cobalt);
    transform: translateY(-50%) scale(1.05);
}

.slider-prev {
    left: 2rem;
}

.slider-next {
    right: 2rem;
}

.slider-dots {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 0.8rem;
    z-index: 10;
}

.slider-dot {
    width: 12px;
    height: 12px;
    background-color: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition-fast);
}

.slider-dot.active {
    background-color: var(--primary-orange);
    width: 28px;
    border-radius: 6px;
}

/* --------------------------------------------------------------------------
   7. About Section & Statistics Counter
   -------------------------------------------------------------------------- */
.about-image {
    position: relative;
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.about-image img {
    width: 100%;
    height: 450px;
    object-fit: cover;
}

.experience-badge {
    position: absolute;
    bottom: 2rem;
    right: 2rem;
    background: linear-gradient(135deg, var(--primary-cobalt), var(--primary-orange));
    color: var(--bg-white);
    padding: 1.5rem 2rem;
    border-radius: var(--border-radius-md);
    text-align: center;
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(8px);
}

.experience-badge h4 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 0;
    color: var(--bg-white);
}

.experience-badge p {
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.about-content h3 {
    font-size: 1.2rem;
    color: var(--primary-cobalt);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}

.about-content h2 {
    font-size: 2.2rem;
    margin-bottom: 1.5rem;
}

.about-content p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
}

.about-points {
    margin-bottom: 2rem;
}

.about-point {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 0.8rem;
    font-weight: 600;
}

.about-point i {
    color: var(--primary-orange);
    font-size: 1.2rem;
}

/* Stats Section */
.stats-section {
    background: linear-gradient(135deg, var(--bg-dark) 0%, hsl(220, 35%, 15%) 100%);
    padding: 4rem 0;
    color: var(--text-light);
    border-bottom: 4px solid var(--primary-orange);
}

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

.stat-icon {
    font-size: 2.5rem;
    color: var(--primary-orange);
    margin-bottom: 0.8rem;
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--bg-white);
    font-family: var(--font-heading);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-title {
    font-weight: 600;
    color: var(--text-muted);
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* --------------------------------------------------------------------------
   8. Services Cards
   -------------------------------------------------------------------------- */
.services-container {
    margin-top: 1rem;
}

.service-card {
    background-color: var(--bg-white);
    border-radius: var(--border-radius-md);
    padding: 2.5rem 2rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
    border: 1px solid var(--accent-soft);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

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

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.service-card:hover::before {
    transform: scaleX(1);
    background: linear-gradient(90deg, var(--primary-cobalt), var(--primary-orange));
}

.service-icon-box {
    width: 60px;
    height: 60px;
    background-color: var(--accent-ice);
    color: var(--primary-cobalt);
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    transition: var(--transition-fast);
}

.service-card:hover .service-icon-box {
    background-color: var(--primary-orange);
    color: var(--bg-white);
    transform: scale(1.05);
}

.service-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.service-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.service-link {
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--primary-cobalt);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
}

.service-link i {
    transition: var(--transition-fast);
}

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

.service-card:hover .service-link i {
    transform: translateX(4px);
}

/* --------------------------------------------------------------------------
   9. Projects Grid & Interaction
   -------------------------------------------------------------------------- */
.projects-filter {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    background-color: var(--bg-white);
    border: 1px solid var(--accent-soft);
    color: var(--text-dark);
    padding: 0.6rem 1.5rem;
    border-radius: 30px;
    font-family: var(--font-heading);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
    background-color: var(--primary-cobalt);
    border-color: var(--primary-cobalt);
    color: var(--bg-white);
    box-shadow: 0 4px 10px rgba(26, 86, 219, 0.2);
}

.project-card {
    background-color: var(--bg-white);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
    border: 1px solid var(--accent-soft);
}

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

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

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(10, 25, 47, 0.9) 0%, rgba(26, 86, 219, 0.4) 100%);
    opacity: 0;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 2rem;
    transition: var(--transition-smooth);
}

.project-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.project-card:hover .project-image-box img {
    transform: scale(1.08);
}

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

.project-category-badge {
    align-self: flex-start;
    background-color: var(--primary-orange);
    color: var(--bg-white);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    text-transform: uppercase;
    margin-bottom: 0.8rem;
}

.project-overlay h4 {
    color: var(--bg-white);
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.project-overlay p {
    color: hsl(210, 15%, 85%);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.project-info-btn {
    align-self: flex-start;
    color: var(--bg-white);
    font-weight: 600;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.project-info-btn i {
    transition: var(--transition-fast);
}

.project-card:hover .project-info-btn i {
    transform: translateX(4px);
}

/* Static Card Content for listing fallback */
.project-content-static {
    padding: 1.5rem;
}

.project-content-static h4 {
    font-size: 1.15rem;
    margin-bottom: 0.5rem;
}

.project-content-static p {
    color: var(--text-muted);
    font-size: 0.9rem;
    height: 45px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

/* --------------------------------------------------------------------------
   10. Interactive Lead Contact Form
   -------------------------------------------------------------------------- */
.lead-form-box {
    background-color: var(--bg-white);
    border-radius: var(--border-radius-lg);
    padding: 3.5rem;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--accent-soft);
    position: relative;
}

.lead-form-box h3 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.lead-form-box p {
    color: var(--text-muted);
    margin-bottom: 2.5rem;
}

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

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    color: var(--bg-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.9rem 1.2rem;
    border: 1.5px solid var(--accent-soft);
    border-radius: var(--border-radius-sm);
    font-family: var(--font-body);
    font-size: 0.95rem;
    background-color: hsl(210, 30%, 99%);
    color: var(--text-dark);
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-cobalt);
    background-color: var(--bg-white);
    box-shadow: 0 0 0 4px rgba(26, 86, 219, 0.1);
}

.form-feedback {
    display: none;
    padding: 1rem;
    border-radius: var(--border-radius-sm);
    margin-bottom: 1.5rem;
    font-weight: 600;
    font-size: 0.95rem;
}

.form-feedback.success {
    display: block;
    background-color: hsl(140, 70%, 90%);
    color: hsl(140, 80%, 25%);
    border: 1px solid hsl(140, 75%, 80%);
}

.form-feedback.error {
    display: block;
    background-color: hsl(0, 80%, 95%);
    color: hsl(0, 80%, 30%);
    border: 1px solid hsl(0, 80%, 90%);
}

/* --------------------------------------------------------------------------
   11. Multi-Column Footer
   -------------------------------------------------------------------------- */
.site-footer {
    background-color: var(--bg-dark);
    color: hsl(220, 15%, 75%);
    padding: 5rem 0 0 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 2fr;
    gap: 3rem;
    margin-bottom: 4rem;
}

.footer-logo img {
    height: 48px;
    width: auto;
    object-fit: contain;
    margin-bottom: 1.5rem;
    filter: brightness(1.05);
}

.brand-col p {
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

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

.footer-socials a {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-white);
    transition: var(--transition-fast);
}

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

.footer-col h3 {
    color: var(--bg-white);
    font-size: 1.15rem;
    margin-bottom: 1.8rem;
    position: relative;
    padding-bottom: 0.5rem;
}

.footer-col h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 35px;
    height: 3px;
    background-color: var(--primary-orange);
    border-radius: 2px;
}

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

.footer-col ul li a {
    color: hsl(220, 15%, 70%);
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.footer-col ul li a i {
    font-size: 0.75rem;
    transition: var(--transition-fast);
}

.footer-col ul li a:hover {
    color: var(--primary-orange);
}

.footer-col ul li a:hover i {
    transform: translateX(4px);
}

.contact-details li {
    display: flex;
    gap: 0.8rem;
    margin-bottom: 1rem !important;
}

.contact-details li i {
    color: var(--primary-orange);
    font-size: 1.1rem;
    margin-top: 0.2rem;
}

.contact-details li span {
    font-size: 0.95rem;
}

.footer-bottom {
    background-color: hsl(220, 35%, 6%);
    padding: 1.5rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: hsl(220, 15%, 55%);
}

/* --------------------------------------------------------------------------
   12. Floating Interactions
   -------------------------------------------------------------------------- */
/* WhatsApp Button */
.whatsapp-float {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 60px;
    height: 60px;
    background-color: #25d366;
    color: var(--bg-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    z-index: 999;
    transition: var(--transition-smooth);
}

.whatsapp-float:hover {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 6px 24px rgba(37, 211, 102, 0.5);
}

.whatsapp-tooltip {
    position: absolute;
    right: 75px;
    background-color: var(--bg-dark);
    color: var(--bg-white);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-sm);
    font-size: 0.85rem;
    font-family: var(--font-heading);
    font-weight: 600;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-fast);
    box-shadow: var(--shadow-md);
}

.whatsapp-float:hover .whatsapp-tooltip {
    opacity: 1;
    visibility: visible;
}

/* Scroll Top Button */
.scroll-top {
    position: fixed;
    bottom: 2rem;
    left: 2rem;
    width: 45px;
    height: 45px;
    background-color: var(--bg-white);
    border: 1px solid var(--accent-soft);
    color: var(--text-dark);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-smooth);
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    background-color: var(--primary-cobalt);
    color: var(--bg-white);
    border-color: var(--primary-cobalt);
    transform: translateY(-3px);
}

/* --------------------------------------------------------------------------
   13. Scroll Reveal Animations (Intersection Observer)
   -------------------------------------------------------------------------- */
.reveal {
    position: relative;
    opacity: 0;
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-fade {
    transform: scale(0.96);
}

.reveal-up {
    transform: translateY(40px);
}

.reveal-left {
    transform: translateX(-40px);
}

.reveal-right {
    transform: translateX(40px);
}

.reveal.active {
    opacity: 1;
    transform: translate(0) scale(1);
}

/* Delay modifiers for sequential entry */
.delay-1 { transition-delay: 0.15s; }
.delay-2 { transition-delay: 0.3s; }
.delay-3 { transition-delay: 0.45s; }
.delay-4 { transition-delay: 0.6s; }

/* --------------------------------------------------------------------------
   14. Dynamic Pages Styling (Services & Portfolio details)
   -------------------------------------------------------------------------- */
/* Page Banner */
.page-banner {
    background: linear-gradient(135deg, var(--bg-dark) 0%, hsl(220, 35%, 15%) 100%);
    padding: 5rem 0;
    color: var(--text-light);
    position: relative;
    overflow: hidden;
    text-align: center;
}

.page-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 80% 20%, rgba(26, 86, 219, 0.15) 0%, transparent 50%);
}

.page-banner h1 {
    color: var(--bg-white);
    font-size: 3rem;
    margin-bottom: 0.8rem;
}

.breadcrumbs {
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-muted);
}

.breadcrumbs a {
    color: var(--text-muted);
}

.breadcrumbs a:hover {
    color: var(--primary-orange);
}

.breadcrumbs span {
    margin: 0 0.5rem;
}

/* Service Detail View */
.service-detail-container {
    padding: 5rem 0;
}

.service-sidebar {
    background-color: var(--bg-white);
    border-radius: var(--border-radius-md);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--accent-soft);
    position: sticky;
    top: 100px;
}

.sidebar-title {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--accent-soft);
}

.sidebar-services-list li {
    margin-bottom: 0.8rem;
}

.sidebar-services-list li a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem 1.2rem;
    background-color: var(--bg-light);
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-dark);
}

.sidebar-services-list li a:hover,
.sidebar-services-list li a.active {
    background-color: var(--primary-cobalt);
    color: var(--bg-white);
}

.sidebar-contact-card {
    background: linear-gradient(135deg, var(--primary-cobalt), var(--primary-orange));
    color: var(--bg-white);
    border-radius: var(--border-radius-md);
    padding: 2rem;
    margin-top: 2rem;
    text-align: center;
}

.sidebar-contact-card h4 {
    color: var(--bg-white);
    font-size: 1.4rem;
    margin-bottom: 0.8rem;
}

.sidebar-contact-card p {
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
    opacity: 0.9;
}

.sidebar-contact-card .btn {
    width: 100%;
}

.service-detail-content h2 {
    font-size: 2.2rem;
    margin-bottom: 1.5rem;
}

.service-detail-content p {
    color: var(--text-muted);
    font-size: 1.05rem;
    margin-bottom: 1.5rem;
}

.service-detail-image {
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    margin-bottom: 2.5rem;
}

.service-detail-image img {
    width: 100%;
    max-height: 400px;
    object-fit: cover;
}

.service-features-list {
    margin: 2rem 0;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.service-features-list li {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-weight: 600;
}

.service-features-list li i {
    color: var(--primary-orange);
    font-size: 1.2rem;
}

/* Contact Page Map */
.contact-map-container {
    height: 400px;
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    margin-top: 3rem;
    border: 1px solid var(--accent-soft);
}

.contact-map-container iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* --------------------------------------------------------------------------
   15. Responsive Styling (Mobile & Tablet)
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2.5rem;
    }
}

@media (max-width: 768px) {
    .d-none-mobile {
        display: none !important;
    }
    
    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    /* Header menu mobile */
    .mobile-toggle {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background-color: var(--bg-white);
        box-shadow: var(--shadow-lg);
        transition: var(--transition-smooth);
        padding: 2rem;
        overflow-y: auto;
        z-index: 998;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu ul {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .nav-menu ul li a {
        font-size: 1.2rem;
        display: block;
    }
    
    .cta-mobile-only {
        display: block !important;
        margin-top: 1.5rem;
    }
    
    /* Hero */
    .hero-slider {
        height: auto;
        padding: 5rem 0;
    }
    
    .slide {
        position: relative;
        opacity: 1;
        visibility: visible;
        display: flex;
        flex-direction: column;
        padding-bottom: 2rem;
    }
    
    .slide:not(:first-child) {
        display: none; /* Just display first slide statically on mobile */
    }
    
    .slide-bg {
        position: absolute;
    }
    
    .slide-title {
        font-size: 2.3rem;
    }
    
    .slider-arrow, .slider-dots {
        display: none !important;
    }
    
    /* About */
    .about-image img {
        height: 300px;
    }
    
    /* Form */
    .lead-form-box {
        padding: 2rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }
    
    /* Footer bottom */
    .footer-bottom-content {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }
    
    .site-footer {
        padding-top: 3rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .whatsapp-float {
        bottom: 1.5rem;
        right: 1.5rem;
        width: 50px;
        height: 50px;
        font-size: 1.6rem;
    }
    
    .scroll-top {
        bottom: 1.5rem;
        left: 1.5rem;
        width: 40px;
        height: 40px;
    }
    
    .service-features-list {
        grid-template-columns: 1fr;
    }
}