/* ==========================================================================
   Kurumsal Website - Frontend CSS
   Modern, Clean, Professional Design
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Variables
   -------------------------------------------------------------------------- */
:root {
    /* Colors */
    --primary: #0d6efd;
    --primary-dark: #0a58ca;
    --secondary: #6c757d;
    --success: #198754;
    --danger: #dc3545;
    --warning: #ffc107;
    --info: #0dcaf0;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-dark: linear-gradient(135deg, #1e3a5f 0%, #0f172a 100%);
    --gradient-accent: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    
    /* Typography */
    --font-primary: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Spacing */
    --section-padding: 100px;
    --section-padding-sm: 60px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    
    /* Transitions */
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 1rem;
    line-height: 1.6;
    color: #334155;
    background-color: #ffffff;
    -webkit-font-smoothing: antialiased;
}

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

a:hover {
    color: var(--primary-dark);
}

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

/* --------------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: #0f172a;
}

.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

@media (max-width: 768px) {
    .section-padding {
        padding: var(--section-padding-sm) 0;
    }
}

.min-vh-80 {
    min-height: 80vh;
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.btn-primary {
    background: var(--gradient-primary);
    border: none;
    box-shadow: 0 4px 14px 0 rgba(102, 126, 234, 0.39);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
    background: var(--gradient-primary);
}

.btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.1);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

/* --------------------------------------------------------------------------
   Header / Navigation
   -------------------------------------------------------------------------- */
.site-header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
}

.navbar {
    padding: 1rem 0;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
}

.brand-text .brand-primary {
    color: var(--primary);
}

.brand-text .brand-secondary {
    color: #334155;
}

.nav-link {
    font-weight: 500;
    color: #334155 !important;
    padding: 0.5rem 1rem !important;
    position: relative;
}

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

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 1rem;
    right: 1rem;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
}

.dropdown-menu {
    border: none;
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-lg);
    padding: 0.5rem;
}

.dropdown-item {
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    font-weight: 500;
}

.dropdown-item:hover {
    background: #f1f5f9;
}

.btn-header-cta {
    padding: 0.625rem 1.25rem;
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero-section {
    position: relative;
    background: var(--gradient-dark);
    color: white;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    inset: 0;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 30% 0%, rgba(102, 126, 234, 0.3) 0%, transparent 50%),
                radial-gradient(ellipse at 70% 100%, rgba(118, 75, 162, 0.3) 0%, transparent 50%);
}

.hero-pattern {
    position: absolute;
    inset: 0;
    background-image: 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='%23ffffff' 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");
}

.hero-section .container {
    position: relative;
    z-index: 1;
    padding: 120px 0;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.1);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: white;
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.25rem;
    }
}

.hero-description {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: 2rem;
    max-width: 540px;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.hero-trust {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
}

.trust-item {
    text-align: left;
}

.trust-number {
    font-size: 2rem;
    font-weight: 700;
}

.trust-label {
    font-size: 0.875rem;
    opacity: 0.7;
}

.hero-visual {
    position: relative;
}

.floating-card {
    position: absolute;
    background: white;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: #334155;
}

.floating-card.card-1 {
    top: 20%;
    right: -10%;
}

.floating-card.card-2 {
    bottom: 20%;
    left: -5%;
}

/* --------------------------------------------------------------------------
   Section Styles
   -------------------------------------------------------------------------- */
.section-badge {
    display: inline-block;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    color: var(--primary);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

@media (max-width: 768px) {
    .section-title {
        font-size: 1.875rem;
    }
}

.section-description {
    font-size: 1.125rem;
    color: #64748b;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* --------------------------------------------------------------------------
   Service Cards
   -------------------------------------------------------------------------- */
.service-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid #e2e8f0;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.service-icon {
    width: 64px;
    height: 64px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.service-icon i {
    font-size: 1.75rem;
    color: white;
}

.service-title {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.service-description {
    color: #64748b;
    margin-bottom: 1rem;
}

.service-link {
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

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

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

/* --------------------------------------------------------------------------
   Project Cards
   -------------------------------------------------------------------------- */
.project-card {
    background: white;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

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

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

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

.project-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-placeholder i {
    font-size: 3rem;
    color: #94a3b8;
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

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

.project-content {
    padding: 1.5rem;
}

.project-client {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.project-title {
    font-size: 1.125rem;
    margin: 0.5rem 0;
}

.project-description {
    color: #64748b;
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

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

.project-tag {
    background: #f1f5f9;
    color: #64748b;
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 500;
}

/* --------------------------------------------------------------------------
   Blog Cards
   -------------------------------------------------------------------------- */
.blog-card {
    background: white;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.blog-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.blog-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.blog-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.blog-placeholder i {
    font-size: 2.5rem;
    color: #94a3b8;
}

.blog-category {
    position: absolute;
    top: 1rem;
    left: 1rem;
    padding: 0.375rem 0.75rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    color: white;
}

.blog-content {
    padding: 1.5rem;
}

.blog-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.75rem;
    color: #94a3b8;
    margin-bottom: 0.75rem;
}

.blog-title {
    font-size: 1.125rem;
    margin-bottom: 0.75rem;
}

.blog-title a {
    color: #0f172a;
}

.blog-title a:hover {
    color: var(--primary);
}

.blog-excerpt {
    color: #64748b;
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.blog-link {
    font-weight: 600;
    font-size: 0.875rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

/* --------------------------------------------------------------------------
   CTA Section
   -------------------------------------------------------------------------- */
.cta-section {
    position: relative;
    background: var(--gradient-primary);
    color: white;
    padding: 80px 0;
    overflow: hidden;
}

.cta-background {
    position: absolute;
    inset: 0;
}

.cta-gradient {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 50% 0%, rgba(255, 255, 255, 0.2) 0%, transparent 70%);
}

.cta-section .container {
    position: relative;
    z-index: 1;
}

.cta-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: white;
}

.cta-description {
    font-size: 1.125rem;
    opacity: 0.9;
    margin-bottom: 2rem;
}

.cta-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
}

/* --------------------------------------------------------------------------
   Page Header
   -------------------------------------------------------------------------- */
.page-header {
    position: relative;
    background: var(--gradient-dark);
    color: white;
    padding: 100px 0 60px;
    overflow: hidden;
}

.page-header-bg {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 30% 0%, rgba(102, 126, 234, 0.3) 0%, transparent 50%);
}

.page-header .container {
    position: relative;
    z-index: 1;
}

.page-header .breadcrumb {
    margin-bottom: 1rem;
}

.page-header .breadcrumb-item a {
    color: rgba(255, 255, 255, 0.7);
}

.page-header .breadcrumb-item.active {
    color: white;
}

.page-header .breadcrumb-item + .breadcrumb-item::before {
    color: rgba(255, 255, 255, 0.5);
}

.page-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: white;
}

.page-description {
    font-size: 1.125rem;
    opacity: 0.9;
    max-width: 600px;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.site-footer {
    background: #0f172a;
    color: #94a3b8;
}

.footer-main {
    padding: 80px 0 60px;
}

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

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

.footer-description {
    font-size: 0.9375rem;
    line-height: 1.7;
}

.footer-title {
    color: white;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: #94a3b8;
    font-size: 0.9375rem;
    transition: var(--transition);
}

.footer-links a:hover {
    color: white;
    padding-left: 5px;
}

.footer-contact {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-contact li {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 0.9375rem;
}

.footer-contact i {
    color: var(--primary);
    width: 20px;
}

.footer-contact a {
    color: #94a3b8;
}

.footer-contact a:hover {
    color: white;
}

.social-links {
    display: flex;
    gap: 0.75rem;
}

.social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-3px);
}

.footer-bottom {
    padding: 1.5rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.copyright {
    font-size: 0.875rem;
}

.footer-bottom-links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    gap: 1.5rem;
    justify-content: flex-end;
}

.footer-bottom-links a {
    color: #94a3b8;
    font-size: 0.875rem;
}

.footer-bottom-links a:hover {
    color: white;
}

/* --------------------------------------------------------------------------
   Back to Top
   -------------------------------------------------------------------------- */
.btn-back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
}

.btn-back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

/* --------------------------------------------------------------------------
   Contact Page
   -------------------------------------------------------------------------- */
.contact-form-wrapper,
.contact-info-wrapper {
    background: white;
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
}

.form-title,
.info-title {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.form-description {
    color: #64748b;
    margin-bottom: 2rem;
}

.contact-info-cards {
    margin-top: 2rem;
}

.info-card {
    display: flex;
    gap: 1rem;
    padding: 1.25rem;
    background: #f8fafc;
    border-radius: var(--radius-lg);
    margin-bottom: 1rem;
}

.info-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.info-icon i {
    font-size: 1.25rem;
    color: white;
}

.info-content h5 {
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.info-content p {
    margin: 0;
    color: #64748b;
}

.info-content a {
    color: #334155;
}

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

.map-section {
    margin-top: -1px;
}

.map-wrapper {
    height: 400px;
}

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

/* --------------------------------------------------------------------------
   Features Section
   -------------------------------------------------------------------------- */
.features-list {
    margin-top: 2rem;
}

.feature-item {
    display: flex;
    gap: 1.25rem;
    padding: 1.5rem;
    background: white;
    border-radius: var(--radius-lg);
    margin-bottom: 1rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.feature-item:hover {
    box-shadow: var(--shadow);
    transform: translateX(5px);
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: var(--gradient-primary);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.feature-icon i {
    font-size: 1.5rem;
    color: white;
}

.feature-content h4 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
}

.feature-content p {
    color: #64748b;
    margin: 0;
    font-size: 0.9375rem;
}

/* --------------------------------------------------------------------------
   Process Section
   -------------------------------------------------------------------------- */
.process-card {
    text-align: center;
    padding: 2rem;
    position: relative;
}

.process-number {
    font-size: 3rem;
    font-weight: 800;
    color: #f1f5f9;
    line-height: 1;
    margin-bottom: 1rem;
}

.process-icon {
    width: 72px;
    height: 72px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.process-icon i {
    font-size: 1.75rem;
    color: white;
}

.process-title {
    font-size: 1.125rem;
    margin-bottom: 0.75rem;
}

.process-description {
    color: #64748b;
    font-size: 0.9375rem;
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 991px) {
    .hero-section .container {
        padding: 80px 0;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .hero-trust {
        gap: 1.5rem;
    }
}

@media (max-width: 767px) {
    .footer-bottom-links {
        justify-content: center;
        margin-top: 1rem;
    }
    
    .cta-title {
        font-size: 1.75rem;
    }
}