/* Base & Variables */
:root {
    /* Color Palette: Antrasit & Turuncu */
    --bg-dark: #0f1115;
    --bg-darker: #0a0b0e;
    --bg-card: #16181d;
    --text-main: #f3f4f6;
    --text-muted: #9ca3af;
    --orange-primary: #ff6b00;
    --orange-hover: #ff8533;
    --orange-glow: rgba(255, 107, 0, 0.3);
    --border-color: rgba(255, 255, 255, 0.08);
    --glass-bg: rgba(22, 24, 29, 0.6);
    
    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Effects */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
}

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

html {
    scroll-behavior: smooth;
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Utilities */
.text-orange { color: var(--orange-primary); }
.text-gradient {
    background: linear-gradient(135deg, #ff6b00 0%, #ff9e00 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.bg-darker { background-color: var(--bg-darker); }
.text-center { text-align: center; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 24px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-family: var(--font-heading);
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--orange-primary);
    color: white;
    box-shadow: 0 4px 15px var(--orange-glow);
}

.btn-primary:hover {
    background: var(--orange-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--orange-glow);
}

.btn-outline {
    background: transparent;
    color: var(--text-main);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
}

.btn-outline:hover {
    border-color: var(--orange-primary);
    color: var(--orange-primary);
}

.btn-lg {
    padding: 14px 32px;
    font-size: 1.1rem;
}

/* Glassmorphism Card */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
}

/* Header & Navbar */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition);
    padding: 20px 0;
    border-bottom: 1px solid transparent;
}

.header.scrolled {
    padding: 10px 0;
    background: rgba(15, 17, 21, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
}

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

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.5rem;
    gap: 5px;
}

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

.logo-text {
    color: var(--text-main);
}

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

.footer-logo-img {
    height: 55px;
    width: auto;
    object-fit: contain;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 25px;
}

.nav-link {
    color: var(--text-main);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: var(--orange-primary);
    transition: var(--transition);
}

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

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

/* Hero Section */
.hero {
    position: relative;
    padding: 160px 0 100px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    opacity: 0.5;
    background-image: radial-gradient(circle at 15% 50%, rgba(255, 107, 0, 0.08), transparent 25%),
                      radial-gradient(circle at 85% 30%, rgba(255, 107, 0, 0.08), transparent 25%);
}

.hero-bottom-glow {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    height: 1px;
    background: radial-gradient(ellipse at center, var(--orange-primary) 0%, transparent 70%);
    box-shadow: 0 -10px 40px var(--orange-glow);
}

.hero-container {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.badge {
    display: inline-block;
    padding: 6px 12px;
    background: rgba(255, 107, 0, 0.1);
    color: var(--orange-primary);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 20px;
    border: 1px solid rgba(255, 107, 0, 0.2);
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 4rem;
    line-height: 1.1;
    font-weight: 800;
    margin-bottom: 24px;
    letter-spacing: -1px;
}

.hero-desc {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 32px;
    max-width: 90%;
}

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

.hero-visual {
    position: relative;
    height: 400px;
}

.visual-card {
    position: absolute;
    padding: 30px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}

.visual-card:nth-child(1) {
    top: 20%;
    left: 0;
    width: 280px;
    z-index: 2;
}

.visual-card:nth-child(2) {
    bottom: 10%;
    right: 0;
    width: 280px;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
    100% { transform: translateY(0px); }
}

.visual-stats .stats-number {
    font-size: 2.5rem;
    font-weight: 800;
    font-family: var(--font-heading);
    color: var(--text-main);
    line-height: 1;
}

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

/* Section Shared */
section {
    padding: 100px 0;
}

.section-header {
    margin-bottom: 60px;
    max-width: 600px;
}

.section-header.text-center {
    margin: 0 auto 60px;
}

.subtitle {
    color: var(--orange-primary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.85rem;
    display: block;
    margin-bottom: 10px;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.section-desc {
    color: var(--text-muted);
}

/* Services */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--bg-card);
    padding: 40px 30px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at top right, rgba(255,107,0,0.1), transparent 50%);
    opacity: 0;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 107, 0, 0.3);
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.service-card:hover::before {
    opacity: 1;
}

.service-icon {
    width: 60px;
    height: 60px;
    background: rgba(255, 107, 0, 0.1);
    color: var(--orange-primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin-bottom: 24px;
    transition: var(--transition);
}

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

.service-title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    margin-bottom: 15px;
    position: relative;
    z-index: 1;
}

.service-text {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}

.service-link {
    color: var(--orange-primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    position: relative;
    z-index: 1;
}

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

.service-card:hover .service-link i {
    transform: translateX(5px);
}

/* Process */
.process-steps {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    position: relative;
}

.step {
    flex: 1;
    text-align: center;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

.step-number {
    width: 80px;
    height: 80px;
    background: var(--bg-card);
    border: 2px solid var(--orange-primary);
    color: var(--orange-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 800;
    margin: 0 auto 20px;
    box-shadow: 0 0 20px rgba(255,107,0,0.1);
}

.step-title {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    margin-bottom: 10px;
}

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

.step-connector {
    flex: 0.5;
    height: 2px;
    background: dashed 2px var(--border-color);
    margin-top: 40px;
    position: relative;
    z-index: 0;
}

/* References / Portfolio */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 60px;
}

.portfolio-item {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    aspect-ratio: 4/3;
}

.portfolio-img-wrap {
    width: 100%;
    height: 100%;
    position: relative;
}

.portfolio-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.portfolio-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 30px 20px 20px;
    background: linear-gradient(to top, rgba(10,11,14,0.9) 0%, transparent 100%);
    transform: translateY(20px);
    opacity: 0;
    transition: var(--transition);
}

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

.portfolio-item:hover .portfolio-overlay {
    transform: translateY(0);
    opacity: 1;
}

.portfolio-category {
    color: var(--orange-primary);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    display: block;
    margin-bottom: 5px;
}

.portfolio-title {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    color: white;
}

/* Clients Grid */
.clients-grid {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
}

.client-logo {
    width: 180px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-weight: bold;
    transition: var(--transition);
}

.client-logo:hover {
    color: var(--text-main);
    border-color: var(--orange-primary);
    transform: translateY(-3px);
}

/* CTA Section */
.cta-section {
    padding: 0 0 100px;
}

.cta-container {
    padding: 60px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, var(--bg-card) 0%, #1a100c 100%);
    border-left: 4px solid var(--orange-primary);
}

.cta-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.cta-desc {
    color: var(--text-muted);
    font-size: 1.1rem;
    max-width: 500px;
}

.cta-buttons {
    display: flex;
    gap: 15px;
}

/* Footer */
.footer {
    background-color: var(--bg-darker);
    padding: 80px 0 0;
    border-top: 1px solid var(--border-color);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 60px;
}

.footer-desc {
    color: var(--text-muted);
    margin: 20px 0;
    max-width: 300px;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-card);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-main);
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-title {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    margin-bottom: 25px;
    color: white;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--orange-primary);
    padding-left: 5px;
}

.contact-list {
    list-style: none;
}

.contact-list li {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    margin-bottom: 15px;
    color: var(--text-muted);
}

.contact-list a {
    color: var(--text-muted);
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding: 25px 0;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Floating WhatsApp */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background-color: #25d366;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    z-index: 1000;
    text-decoration: none;
    transition: var(--transition);
    animation: pulse 2s infinite;
}

.whatsapp-float:hover {
    transform: scale(1.1);
}

.whatsapp-tooltip {
    position: absolute;
    right: 80px;
    background: var(--bg-card);
    color: var(--text-main);
    padding: 8px 15px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

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

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.5); }
    70% { box-shadow: 0 0 0 15px rgba(37, 211, 102, 0); }
    100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}

/* Responsive Design */
@media (max-width: 992px) {
    .hero-title { font-size: 3rem; }
    .hero-container { grid-template-columns: 1fr; text-align: center; }
    .hero-actions { justify-content: center; }
    .hero-desc { margin: 0 auto 30px; }
    .hero-visual { display: none; }
    .process-steps { flex-direction: column; gap: 30px; }
    .step-connector { display: none; }
    .cta-container { flex-direction: column; text-align: center; gap: 30px; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--bg-dark);
        flex-direction: column;
        justify-content: center;
        transition: 0.4s;
    }
    .nav-menu.active { left: 0; }
    .nav-list { flex-direction: column; align-items: center; font-size: 1.2rem; }
    .mobile-menu-btn { display: block; }
    .nav-cta { margin-top: 20px; }
    
    .hero-title { font-size: 2.5rem; }
    .footer-grid { grid-template-columns: 1fr; }
    
    .section-title { font-size: 2rem; }
}