/* 
   KRCLAB Premium Web Application Style Sheet
   Architectural Dark/Light Hybrid Theme with Gold/Bronze Accents
   Version: 2.1.0 (Advanced Interactive Modules Edition)
*/

/* ----------------------------------------------------
   1. CORE VARIABLES & RESET
---------------------------------------------------- */
:root {
    --primary: #c5a880;        /* Gold/Bronze */
    --primary-light: #dec099;  /* Light Gold */
    --primary-dark: #aa8e67;   /* Dark Gold */
    --dark-bg: #0b0c10;        /* Pure Charcoal Dark */
    --dark-surface: #12141c;   /* Dark Card Surface */
    --light-bg: #f8f9fc;       /* Off-White Clean Surface */
    --white: #ffffff;
    --text-dark: #1e2229;      /* Dark Text */
    --text-light: #e2e8f0;     /* Light Text */
    --text-muted: #64748b;     /* Gray Muted Text */
    --border-color: #e2e8f0;   /* Light Border */
    --border-dark: #222530;    /* Dark Border */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 10px 25px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.12);
    --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --font-heading: 'Plus Jakarta Sans', sans-serif;
    --font-body: 'Inter', sans-serif;
}

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

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

body {
    font-family: var(--font-body);
    line-height: 1.7;
    color: var(--text-dark);
    background-color: var(--white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
}

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

/* ----------------------------------------------------
   2. BUTTONS & UTILITIES
---------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: 6px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
}

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

.btn-primary:hover {
    background-color: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(197, 168, 128, 0.25);
}

.btn-secondary {
    background-color: transparent;
    color: var(--white);
    border-color: rgba(255, 255, 255, 0.25);
}

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

.btn-nav-cta {
    padding: 8px 18px;
    font-size: 0.85rem;
    border-radius: 4px;
    background-color: var(--primary);
    color: var(--dark-bg);
}

.btn-nav-cta:hover {
    background-color: var(--primary-light);
    color: var(--dark-bg);
}

/* Section Titles */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.sub-title {
    display: inline-block;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.8rem;
    letter-spacing: 2px;
    color: var(--primary);
    margin-bottom: 12px;
    text-transform: uppercase;
    position: relative;
}

.section-header h2 {
    font-family: var(--font-heading);
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--text-dark);
    line-height: 1.3;
    margin-bottom: 16px;
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.05rem;
}

.section-title {
    margin-bottom: 24px;
}

.section-title h2 {
    font-family: var(--font-heading);
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--text-dark);
    line-height: 1.3;
}

.badge {
    display: inline-block;
    padding: 6px 14px;
    background-color: rgba(197, 168, 128, 0.12);
    border-left: 3px solid var(--primary);
    color: var(--primary-light);
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.75rem;
    letter-spacing: 1px;
    margin-bottom: 20px;
}

/* ----------------------------------------------------
   3. HEADER & NAVIGATION BAR
---------------------------------------------------- */
.top-bar {
    background-color: var(--dark-bg);
    border-bottom: 1px solid var(--border-dark);
    padding: 8px 0;
    font-size: 0.8rem;
    color: var(--text-light);
}

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

.top-info {
    display: flex;
    gap: 24px;
}

.top-info span i {
    color: var(--primary);
    margin-right: 6px;
}

.top-info a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}

.top-info a:hover {
    color: var(--primary);
}

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

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

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

/* Navbar */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid var(--border-color);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: var(--transition);
}

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

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 0;
}

.logo {
    display: flex;
    align-items: center;
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--text-dark);
    text-decoration: none;
    letter-spacing: -0.5px;
}

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

.nav-menu {
    display: flex;
    list-style: none;
    gap: 28px;
}

.nav-link {
    text-decoration: none;
    color: var(--text-dark);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary);
    transition: var(--transition);
}

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

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.search-toggle-btn {
    background: none;
    border: none;
    font-size: 1rem;
    color: var(--text-dark);
    cursor: pointer;
    transition: var(--transition);
}

.search-toggle-btn:hover {
    color: var(--primary);
}

.hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    cursor: pointer;
}

.hamburger span {
    width: 100%;
    height: 2px;
    background-color: var(--text-dark);
    transition: var(--transition);
}

/* Search Panel */
.search-panel {
    position: fixed;
    top: -100px;
    left: 0;
    width: 100%;
    background-color: var(--white);
    box-shadow: var(--shadow-md);
    z-index: 1001;
    padding: 24px 0;
    transition: var(--transition);
    border-bottom: 2px solid var(--primary);
}

.search-panel.open {
    top: 0;
}

.search-container {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    padding: 0 24px;
}

.search-container input {
    flex: 1;
    border: none;
    background: none;
    font-family: var(--font-heading);
    font-size: 1.25rem;
    padding: 8px 16px;
    color: var(--text-dark);
    outline: none;
}

.search-close-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-muted);
    transition: var(--transition);
}

.search-close-btn:hover {
    color: var(--primary);
}

/* ----------------------------------------------------
   4. HERO SLIDER SECTION
---------------------------------------------------- */
.hero {
    position: relative;
    height: calc(100vh - 120px);
    min-height: 580px;
    background-color: var(--dark-bg);
    overflow: hidden;
    display: flex;
    align-items: center;
}

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

.hero-slider .slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transform: scale(1.08);
    transition: opacity 1.2s ease, transform 6s ease;
    z-index: 1;
}

.hero-slider .slide.active {
    opacity: 1;
    transform: scale(1);
    z-index: 2;
}

.hero-content-wrapper {
    position: relative;
    z-index: 3;
    width: 100%;
}

.hero-content {
    max-width: 750px;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 3.6rem);
    font-weight: 800;
    color: var(--white);
    line-height: 1.15;
    margin-bottom: 24px;
}

.hero-title span {
    color: var(--primary);
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-description {
    font-size: clamp(1rem, 2vw, 1.15rem);
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 36px;
    max-width: 650px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-indicators {
    position: absolute;
    bottom: 40px;
    right: 40px;
    z-index: 3;
    display: flex;
    gap: 12px;
}

.hero-indicators .indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.3);
    cursor: pointer;
    transition: var(--transition);
}

.hero-indicators .indicator.active {
    background-color: var(--primary);
    transform: scale(1.3);
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    color: var(--white);
    font-size: 1.5rem;
    animation: bounce 2s infinite;
    cursor: pointer;
}

/* ----------------------------------------------------
   5. ABOUT (KURUMSAL) SECTION
---------------------------------------------------- */
.about {
    padding: 100px 0;
    background-color: var(--white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-image {
    position: relative;
}

.about-image .image-wrapper {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.about-image img {
    width: 100%;
    height: 520px;
    object-fit: cover;
    transition: var(--transition);
}

.about-image img:hover {
    transform: scale(1.03);
}

.experience-badge {
    position: absolute;
    bottom: 30px;
    left: 30px;
    background-color: var(--dark-bg);
    border-left: 4px solid var(--primary);
    padding: 24px 30px;
    border-radius: 6px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    box-shadow: var(--shadow-lg);
    z-index: 2;
}

.experience-badge .number {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
}

.experience-badge .text {
    font-size: 0.8rem;
    color: var(--text-light);
    font-weight: 600;
    letter-spacing: 0.5px;
}

.about-content .lead-text {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 20px;
}

.about-content p {
    color: var(--text-muted);
    margin-bottom: 30px;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.feature-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.feature-item .icon {
    font-size: 1.5rem;
    color: var(--primary);
    margin-top: 3px;
}

.feature-item h4 {
    font-family: var(--font-heading);
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 4px;
}

.feature-item p {
    margin-bottom: 0;
    font-size: 0.9rem;
}

/* ----------------------------------------------------
   6. WHY US (NEDEN BİZ) SECTION
---------------------------------------------------- */
.why-us {
    padding: 100px 0;
    background-color: var(--light-bg);
}

.why-us-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 30px;
}

.why-card {
    background-color: var(--white);
    padding: 40px 30px;
    border-radius: 8px;
    border-bottom: 3px solid transparent;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.why-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary);
}

.why-icon {
    width: 60px;
    height: 60px;
    background-color: rgba(197, 168, 128, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    color: var(--primary-dark);
    margin-bottom: 24px;
    transition: var(--transition);
}

.why-card:hover .why-icon {
    background-color: var(--primary);
    color: var(--white);
}

.why-card h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 14px;
    color: var(--text-dark);
}

.why-card p {
    font-size: 0.95rem;
    color: var(--text-muted);
}

/* ----------------------------------------------------
   7. SECTORAL SOLUTIONS (SEKTÖREL ÇÖZÜMLER)
---------------------------------------------------- */
.sectoral {
    padding: 100px 0;
    background-color: var(--white);
}

.sector-tabs {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 50px;
    flex-wrap: wrap;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 20px;
}

.sector-tab-btn {
    background: none;
    border: none;
    padding: 12px 24px;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text-muted);
    cursor: pointer;
    position: relative;
    transition: var(--transition);
}

.sector-tab-btn::after {
    content: '';
    position: absolute;
    bottom: -21px;
    left: 0;
    width: 0;
    height: 3px;
    background-color: var(--primary);
    transition: var(--transition);
}

.sector-tab-btn.active::after {
    width: 100%;
}

.sector-tab-btn.active,
.sector-tab-btn:hover {
    color: var(--primary-dark);
}

.sector-tab-content {
    display: none;
    animation: fadeIn 0.6s ease;
}

.sector-tab-content.active {
    display: block;
}

.sector-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 50px;
    align-items: center;
}

.sector-text h3 {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 18px;
}

.sector-text p {
    color: var(--text-muted);
    margin-bottom: 24px;
}

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

.sector-list li {
    margin-bottom: 12px;
    font-size: 0.95rem;
    color: var(--text-dark);
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.sector-list li i {
    color: var(--primary);
    margin-top: 4px;
    font-size: 1.1rem;
}

.sector-image img {
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    height: 380px;
    width: 100%;
    object-fit: cover;
}

/* ----------------------------------------------------
   8. SERVICES (ÜRÜNLERİMİZ) SECTION
---------------------------------------------------- */
.services {
    padding: 100px 0;
    background-color: var(--light-bg);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.service-card {
    background-color: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

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

.service-image {
    position: relative;
    height: 240px;
    overflow: hidden;
}

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

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

.service-content {
    padding: 40px 30px;
    position: relative;
}

.service-icon-box {
    position: absolute;
    top: -30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background-color: var(--primary);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--dark-bg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.service-card:hover .service-icon-box {
    transform: translateY(-5px);
    background-color: var(--dark-bg);
    color: var(--primary);
}

.service-content h3 {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 750;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.service-content p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 24px;
}

.service-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
}

.service-features li {
    font-size: 0.9rem;
    color: var(--text-dark);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

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

/* ----------------------------------------------------
   9. INTERACTIVE COLOR SIMULATOR
---------------------------------------------------- */
.simulator-section {
    padding: 100px 0;
    background-color: var(--white);
}

.simulator-grid {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 60px;
    align-items: center;
}

.simulator-viewer {
    background-color: var(--light-bg);
    border-radius: 12px;
    padding: 50px 30px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.cabin-mockup-wrapper {
    width: 100%;
    max-width: 380px;
    height: 400px;
    background-color: var(--white);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    display: flex;
    justify-content: center;
    align-items: flex-end;
    padding: 30px;
    position: relative;
    overflow: hidden;
}

.cabin-system {
    position: relative;
    width: 260px;
    height: 320px;
    display: flex;
    align-items: flex-start;
}

/* Custom CSS Cabin Draw elements */
.cabin-headrail {
    position: absolute;
    top: 0;
    left: -10px;
    width: 280px;
    height: 12px;
    background-color: #b0b0b0; /* default alu */
    border-radius: 2px;
    z-index: 10;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: var(--transition);
}

.cabin-panel {
    position: absolute;
    top: 12px;
    width: 45px;
    height: 270px;
    background-color: #ECECEC; /* default plaka color */
    border: 1px solid rgba(0,0,0,0.1);
    transition: var(--transition);
}

.left-pilaster {
    left: 0;
}

.right-pilaster {
    right: 0;
}

.cabin-door {
    position: absolute;
    top: 12px;
    left: 45px;
    width: 170px;
    height: 270px;
    background-color: #ECECEC; /* default color */
    border: 1px solid rgba(0,0,0,0.1);
    border-left: 2px solid rgba(0,0,0,0.15);
    border-right: 2px solid rgba(0,0,0,0.15);
    transition: var(--transition);
    display: flex;
    align-items: center;
}

/* Hardware overlay elements */
.cabin-hardware {
    position: absolute;
    background-color: #b0b0b0; /* alu */
    transition: var(--transition);
    z-index: 5;
}

.lock-indicator {
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 2px solid rgba(0,0,0,0.2);
    display: flex;
    align-items: center;
    justify-content: center;
}

.lock-circle {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: #25D366; /* green for open, red for closed */
}

.door-handle {
    right: 48px;
    top: 50%;
    transform: translateY(-50%);
    width: 12px;
    height: 36px;
    border-radius: 3px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}

.hinge {
    left: 42px;
    width: 8px;
    height: 30px;
    border-radius: 2px;
}

.top-hinge {
    top: 50px;
}

.bottom-hinge {
    bottom: 50px;
}

.foot {
    bottom: -32px;
    width: 16px;
    height: 32px;
    border-radius: 2px;
}

.left-foot {
    left: 14px;
}

.right-foot {
    right: 14px;
}

.viewer-legend {
    margin-top: 20px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Controls Panel */
.simulator-controls {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.control-group h3 {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 750;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.sim-colors-grid {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 8px;
    margin-bottom: 12px;
}

.sim-color-btn {
    aspect-ratio: 1;
    border-radius: 4px;
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
}

.sim-color-btn:hover,
.sim-color-btn.active {
    transform: scale(1.1);
    border-color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.control-info {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.control-info strong {
    color: var(--text-dark);
}

.sim-hardware-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.sim-hw-label {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    cursor: pointer;
}

.sim-hw-label input {
    margin-top: 6px;
    accent-color: var(--primary);
}

.hw-card-inner {
    display: flex;
    flex-direction: column;
}

.hw-card-inner strong {
    font-size: 0.95rem;
    color: var(--text-dark);
}

.hw-card-inner .desc {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.simulator-summary {
    background-color: var(--light-bg);
    padding: 24px;
    border-radius: 8px;
    border-left: 4px solid var(--primary);
}

.simulator-summary p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 16px;
}

/* ----------------------------------------------------
   10. TECHNICAL SPECS SECTION
---------------------------------------------------- */
.specs-section {
    padding: 100px 0;
    background-color: var(--light-bg);
}

.specs-grid {
    display: grid;
    grid-template-columns: 1.3fr 0.7fr;
    gap: 50px;
    align-items: center;
}

.specs-content p {
    color: var(--text-muted);
    margin-bottom: 30px;
}

.tech-table-wrapper {
    overflow-x: auto;
    box-shadow: var(--shadow-sm);
    border-radius: 8px;
}

.tech-table {
    width: 100%;
    border-collapse: collapse;
    background-color: var(--white);
    text-align: left;
}

.tech-table th,
.tech-table td {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.9rem;
}

.tech-table th {
    background-color: var(--dark-bg);
    color: var(--white);
    font-family: var(--font-heading);
    font-weight: 600;
}

.tech-table td strong {
    color: var(--text-dark);
}

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

.color-palette-preview {
    background-color: var(--dark-bg);
    color: var(--white);
    padding: 40px 30px;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    border-top: 4px solid var(--primary);
}

.color-palette-preview h3 {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.color-palette-preview p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 24px;
}

.colors-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 20px;
}

.color-item {
    height: 80px;
    border-radius: 6px;
    display: flex;
    align-items: flex-end;
    padding: 10px;
    cursor: pointer;
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

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

.color-item span {
    font-size: 0.75rem;
    font-weight: 600;
    color: #1a202c;
    background-color: rgba(255, 255, 255, 0.9);
    padding: 2px 6px;
    border-radius: 3px;
    display: block;
    width: 100%;
    text-align: center;
}

.color-item[style*="background-color: #1A1A1A"] span {
    color: #fff;
    background-color: rgba(0,0,0,0.6);
}

.small-note {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.5) !important;
    margin-bottom: 0 !important;
}

/* ----------------------------------------------------
   11. PROCESS (SÜRECİMİZ) SECTION
---------------------------------------------------- */
.process {
    padding: 100px 0;
    background-color: var(--white);
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 30px;
    position: relative;
}

.step-card {
    background-color: var(--white);
    padding: 40px 30px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    position: relative;
    transition: var(--transition);
}

.step-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}

.step-number {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 800;
    color: rgba(197, 168, 128, 0.18);
    position: absolute;
    top: 20px;
    right: 30px;
    line-height: 1;
}

.step-card h3 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 16px;
    position: relative;
    z-index: 2;
}

.step-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
    position: relative;
    z-index: 2;
}

/* ----------------------------------------------------
   12. CERTIFICATES & QUALITY STANDARDS
---------------------------------------------------- */
.certificates-section {
    padding: 100px 0;
    background-color: var(--light-bg);
}

.certificates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 30px;
}

.cert-card {
    background-color: var(--white);
    padding: 40px 30px;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    text-align: center;
    transition: var(--transition);
}

.cert-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}

.cert-icon {
    font-size: 2.2rem;
    color: var(--primary);
    margin-bottom: 20px;
}

.cert-card h3 {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.cert-card p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ----------------------------------------------------
   13. GALLERY (PORTFÖY) SECTION
---------------------------------------------------- */
.gallery {
    padding: 100px 0;
    background-color: var(--white);
}

.gallery-filters {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    background-color: var(--white);
    border: 1px solid var(--border-color);
    color: var(--text-dark);
    padding: 10px 24px;
    border-radius: 30px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
    background-color: var(--primary);
    color: var(--dark-bg);
    border-color: var(--primary);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
}

.gallery-item {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    aspect-ratio: 4/3;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(11, 12, 16, 0.95), rgba(11, 12, 16, 0.4));
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 30px;
    opacity: 0;
    transition: var(--transition);
    z-index: 2;
}

.overlay-icons {
    position: absolute;
    top: 30px;
    right: 30px;
    width: 44px;
    height: 44px;
    background-color: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--dark-bg);
    font-size: 1rem;
    transform: scale(0.6);
    opacity: 0;
    transition: var(--transition);
}

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

.gallery-item:hover .overlay-icons {
    transform: scale(1);
    opacity: 1;
}

.gallery-item:hover img {
    transform: scale(1.06);
}

.gallery-overlay h3 {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 4px;
}

.gallery-overlay p {
    color: var(--primary-light);
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.5px;
}

.gallery-item.hide {
    display: none;
}

/* ----------------------------------------------------
   14. CASE STUDIES & TESTIMONIALS
---------------------------------------------------- */
.case-studies {
    padding: 100px 0;
    background-color: var(--light-bg);
}

.cases-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-bottom: 60px;
}

.case-card {
    background-color: var(--white);
    padding: 40px;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    border-top: 4px solid var(--primary);
    transition: var(--transition);
}

.case-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.case-tag {
    display: inline-block;
    padding: 4px 10px;
    background-color: rgba(197, 168, 128, 0.1);
    color: var(--primary-dark);
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: 4px;
    margin-bottom: 16px;
}

.case-card h3 {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 750;
    margin-bottom: 12px;
}

.case-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.case-specs {
    list-style: none;
    background-color: var(--light-bg);
    padding: 20px;
    border-radius: 6px;
    font-size: 0.85rem;
}

.case-specs li {
    margin-bottom: 8px;
}

.case-specs li:last-child {
    margin-bottom: 0;
}

/* Testimonials Grid */
.testimonials-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.testimonial-card {
    background-color: var(--white);
    padding: 30px;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    position: relative;
}

.testimonial-card::before {
    content: '“';
    font-family: Georgia, serif;
    font-size: 5rem;
    color: rgba(197, 168, 128, 0.15);
    position: absolute;
    top: -10px;
    left: 20px;
    line-height: 1;
}

.testimonial-card .quote {
    font-size: 0.95rem;
    font-style: italic;
    color: var(--text-muted);
    position: relative;
    z-index: 2;
    margin-bottom: 20px;
}

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

.author-info strong {
    font-size: 0.95rem;
    color: var(--text-dark);
}

.author-info span {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ----------------------------------------------------
   15. ARCHITECT PORTAL
---------------------------------------------------- */
.architect-portal {
    padding: 100px 0;
    background-color: var(--dark-bg);
    color: var(--white);
}

.architect-grid-box {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: center;
}

.arch-text h2 {
    font-family: var(--font-heading);
    font-size: 2.25rem;
    font-weight: 850;
    color: var(--white);
    margin-bottom: 16px;
}

.arch-text p {
    color: rgba(255,255,255,0.7);
    margin-bottom: 30px;
}

.download-links {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.download-btn {
    display: flex;
    align-items: center;
    gap: 16px;
    background-color: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    color: var(--white);
    padding: 18px 24px;
    border-radius: 6px;
    text-decoration: none;
    transition: var(--transition);
}

.download-btn i {
    font-size: 1.8rem;
    color: var(--primary);
}

.download-btn span {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
}

.download-btn:hover {
    background-color: rgba(255,255,255,0.1);
    border-color: var(--primary);
    transform: translateX(5px);
}

.arch-form-wrapper {
    background-color: var(--dark-surface);
    padding: 40px;
    border-radius: 8px;
    border: 1px solid var(--border-dark);
}

.arch-form-wrapper h3 {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.arch-form-wrapper p {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.5);
    margin-bottom: 24px;
}

.arch-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.arch-form input,
.arch-form textarea {
    padding: 14px;
    border-radius: 4px;
    border: 1px solid var(--border-dark);
    background-color: rgba(0,0,0,0.2);
    color: var(--white);
    font-family: var(--font-body);
    font-size: 0.9rem;
    outline: none;
    transition: var(--transition);
}

.arch-form input:focus,
.arch-form textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(197, 168, 128, 0.2);
}

/* ----------------------------------------------------
   16. FAQ (S.S.S.) SECTION
---------------------------------------------------- */
.faq {
    padding: 100px 0;
    background-color: var(--white);
}

.faq-accordion {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    background-color: var(--white);
    transition: var(--transition);
}

.faq-question {
    padding: 24px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    user-select: none;
    transition: var(--transition);
}

.faq-question:hover {
    background-color: var(--light-bg);
}

.faq-question h3 {
    font-family: var(--font-heading);
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-dark);
    padding-right: 20px;
}

.faq-question .icon {
    font-size: 1rem;
    color: var(--primary-dark);
    transition: var(--transition);
}

.faq-answer {
    padding: 0 30px;
    max-height: 0;
    overflow: hidden;
    transition: var(--transition);
    color: var(--text-muted);
    font-size: 0.95rem;
}

.faq-answer p {
    padding-bottom: 24px;
}

.faq-item.active {
    border-color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.faq-item.active .faq-answer {
    max-height: 300px;
}

.faq-item.active .faq-question .icon {
    transform: rotate(45deg);
    color: var(--primary);
}

/* ----------------------------------------------------
   17. INTERACTIVE COST CALCULATOR
---------------------------------------------------- */
.calculator-section {
    padding: 100px 0;
    background-color: var(--light-bg);
}

.calc-box-wrapper {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 50px;
    background-color: var(--white);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.calc-inputs {
    padding: 50px;
}

.calc-inputs h3 {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 750;
    color: var(--text-dark);
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 8px;
    margin-bottom: 24px;
}

.calc-inputs h3:not(:first-child) {
    margin-top: 36px;
}

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

.calc-form-group label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-dark);
    display: flex;
    justify-content: space-between;
    margin-bottom: 12px;
}

.calc-slider {
    width: 100%;
    height: 6px;
    background: #e2e8f0;
    border-radius: 3px;
    outline: none;
    accent-color: var(--primary);
    -webkit-appearance: none;
}

.calc-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.calc-slider::-webkit-slider-thumb:hover {
    transform: scale(1.15);
}

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

.calc-select-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.calc-select-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-dark);
}

.calc-select-group select {
    padding: 12px 16px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    background-color: var(--light-bg);
    outline: none;
    font-family: var(--font-body);
    font-size: 0.9rem;
    transition: var(--transition);
}

.calc-select-group select:focus {
    border-color: var(--primary);
}

.calc-results-panel {
    background-color: var(--dark-bg);
    color: var(--white);
    padding: 50px;
    display: flex;
    flex-direction: column;
}

.calc-results-panel h3 {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--white);
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding-bottom: 16px;
    margin-bottom: 30px;
}

.result-lines {
    display: flex;
    flex-direction: column;
    gap: 18px;
    margin-bottom: 36px;
}

.result-line {
    display: flex;
    justify-content: space-between;
    font-size: 0.95rem;
    color: rgba(255,255,255,0.7);
}

.result-line.divider {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 24px;
}

.result-line strong {
    color: var(--white);
}

.result-line .total-price {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    color: var(--primary);
}

.calc-disclaimer {
    background-color: rgba(255,255,255,0.03);
    padding: 16px;
    border-radius: 6px;
    margin-top: auto;
    margin-bottom: 24px;
    font-size: 0.75rem;
    color: rgba(255,255,255,0.4);
    line-height: 1.5;
}

/* ----------------------------------------------------
   18. COVERAGE SECTION
---------------------------------------------------- */
.coverage {
    padding: 100px 0;
    background-color: var(--white);
}

.coverage-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 50px;
    align-items: center;
}

.cities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 12px;
    margin-top: 30px;
}

.city-badge {
    background-color: var(--light-bg);
    border: 1px solid var(--border-color);
    padding: 12px 18px;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    gap: 10px;
    transition: var(--transition);
}

.city-badge i {
    color: var(--primary);
}

.city-badge:hover {
    transform: translateX(3px);
    border-color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.coverage-box {
    background-color: var(--dark-bg);
    color: var(--white);
    padding: 50px 40px;
    border-radius: 12px;
    border-top: 4px solid var(--primary);
    box-shadow: var(--shadow-lg);
    text-align: center;
}

.coverage-icon {
    font-size: 3.5rem;
    color: var(--primary);
    margin-bottom: 20px;
}

.coverage-box h3 {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.coverage-box p {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 30px;
}

/* ----------------------------------------------------
   19. CONTACT (İLETİŞİM) SECTION
---------------------------------------------------- */
.contact {
    padding: 100px 0;
    background-color: var(--white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 0.85fr 1.15fr;
    gap: 60px;
    margin-bottom: 60px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.detail-card {
    background-color: var(--light-bg);
    padding: 30px;
    border-radius: 8px;
    display: flex;
    gap: 20px;
    align-items: flex-start;
    border-left: 3px solid transparent;
    transition: var(--transition);
}

.detail-card:hover {
    border-left-color: var(--primary);
    background-color: var(--white);
    box-shadow: var(--shadow-md);
}

.detail-card .icon {
    width: 48px;
    height: 48px;
    background-color: var(--primary);
    color: var(--dark-bg);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.detail-card h3 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 6px;
}

.detail-card p {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.5;
}

.detail-card p strong {
    color: var(--text-dark);
}

.detail-card p a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}

.detail-card p a:hover {
    color: var(--primary-dark);
}

.contact-form-wrapper {
    background-color: var(--white);
    padding: 40px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
}

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

.form-group {
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 14px 18px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-family: var(--font-body);
    font-size: 0.95rem;
    background-color: var(--light-bg);
    outline: none;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    background-color: var(--white);
    box-shadow: 0 0 0 4px rgba(197, 168, 128, 0.15);
}

.btn-submit {
    width: 100%;
    border-radius: 4px;
    background-color: #25D366;
    color: var(--white);
    font-size: 1rem;
    padding: 16px;
    border: none;
}

.btn-submit:hover {
    background-color: #20ba56;
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(37, 211, 102, 0.2);
}

.map-wrapper {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.map-wrapper iframe {
    display: block;
}

/* ----------------------------------------------------
   20. FOOTER
---------------------------------------------------- */
.footer {
    background-color: var(--dark-bg);
    color: var(--white);
    padding: 80px 0 30px;
    border-top: 1px solid var(--border-dark);
}

.footer-top {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand .logo {
    color: var(--white);
    margin-bottom: 20px;
}

.footer-brand p {
    color: var(--text-light);
    font-size: 0.9rem;
    opacity: 0.7;
    max-width: 320px;
}

.footer-links h3,
.footer-products h3 {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 24px;
    position: relative;
    padding-bottom: 10px;
}

.footer-links h3::after,
.footer-products h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background-color: var(--primary);
}

.footer-links ul,
.footer-products ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links ul li a,
.footer-products ul li a {
    color: var(--text-light);
    opacity: 0.7;
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition);
}

.footer-links ul li a:hover,
.footer-products ul li a:hover {
    color: var(--primary);
    opacity: 1;
    padding-left: 5px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--text-light);
    opacity: 0.6;
}

.developer-note {
    font-weight: 600;
    letter-spacing: 0.5px;
}

/* ----------------------------------------------------
   21. LIGHTBOX MODAL
---------------------------------------------------- */
.lightbox {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(11, 12, 16, 0.98);
    justify-content: center;
    align-items: center;
}

.lightbox-wrapper {
    position: relative;
    max-width: 90%;
    max-height: 85%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.lightbox-media-container {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.lightbox-content,
.lightbox-video-content {
    max-width: 100%;
    max-height: 75vh;
    border-radius: 6px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    display: none;
    object-fit: contain;
}

.lightbox-video-content {
    width: auto;
    height: 75vh;
}

.lightbox-caption {
    margin-top: 16px;
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--white);
    text-align: center;
}

.lightbox-close {
    position: absolute;
    top: 30px;
    right: 40px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 2.5rem;
    cursor: pointer;
    transition: var(--transition);
    z-index: 10001;
    line-height: 1;
}

.lightbox-close:hover {
    color: var(--primary);
}

.lightbox-prev,
.lightbox-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    color: rgba(255, 255, 255, 0.6);
    font-size: 2.5rem;
    cursor: pointer;
    padding: 20px;
    user-select: none;
    transition: var(--transition);
    text-decoration: none;
}

.lightbox-prev {
    left: 20px;
}

.lightbox-next {
    right: 20px;
}

.lightbox-prev:hover,
.lightbox-next:hover {
    color: var(--primary);
}

/* ----------------------------------------------------
   22. FLOATING CALL & WHATSAPP BUTTONS
---------------------------------------------------- */
.float-btn {
    position: fixed;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    box-shadow: var(--shadow-lg);
    z-index: 999;
    transition: var(--transition);
    text-decoration: none;
}

.float-btn:hover {
    transform: scale(1.1) rotate(5deg);
}

.whatsapp-float {
    bottom: 30px;
    right: 30px;
    background-color: #25D366;
}

.call-float {
    bottom: 105px;
    right: 30px;
    background-color: var(--primary-dark);
}

.float-btn .tooltip {
    position: absolute;
    right: 75px;
    background-color: var(--dark-bg);
    color: var(--white);
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    opacity: 0;
    visibility: hidden;
    white-space: nowrap;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
}

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

/* ----------------------------------------------------
   23. RESPONSIVE DESIGN (MOBİL UYUMLULUK)
---------------------------------------------------- */
@media (max-width: 992px) {
    .nav-menu {
        gap: 16px;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-image img {
        height: 400px;
    }
    
    .sector-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .sector-image img {
        height: 300px;
    }
    
    .simulator-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .calc-box-wrapper {
        grid-template-columns: 1fr;
    }
    
    .architect-grid-box {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .specs-grid {
        grid-template-columns: 1fr;
    }
    
    .coverage-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-top {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 104px;
        flex-direction: column;
        background-color: var(--white);
        width: 100%;
        height: calc(100vh - 104px);
        text-align: center;
        padding: 40px 0;
        box-shadow: var(--shadow-md);
        transition: var(--transition);
    }

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

    .nav-menu li {
        margin-bottom: 24px;
    }

    .nav-link {
        font-size: 1.1rem;
    }
    
    .nav-actions {
        display: none;
    }
    
    .hero {
        height: calc(100vh - 90px);
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .calc-inputs {
        padding: 30px;
    }
    
    .calc-results-panel {
        padding: 30px;
    }
    
    .calc-row {
        grid-template-columns: 1fr;
    }
    
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-top {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: 12px;
    }
}

@media (max-width: 576px) {
    .top-bar {
        display: none;
    }
    
    .navbar {
        top: 0;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .sim-colors-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .experience-badge {
        padding: 16px 20px;
    }
    
    .experience-badge .number {
        font-size: 1.8rem;
    }
    
    .experience-badge .text {
        font-size: 0.75rem;
    }
}

/* ----------------------------------------------------
   24. ANIMATIONS
---------------------------------------------------- */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}