/* ==========================================================================
   KODKATMAN PREMIUM DESIGN SYSTEM & STYLESHEET
   ========================================================================== */

/* 1. INITIAL SYSTEM SETUP & VARIABLES */
:root {
    /* Colors */
    --bg-primary: #070B14;
    --bg-secondary: #101826;
    --bg-card: rgba(255, 255, 255, 0.04);
    --border-card: rgba(255, 255, 255, 0.08);
    --text-primary: #FFFFFF;
    --text-secondary: #B8C1D1;
    --text-muted: #64748B;
    
    --accent-blue: #00BFFF;
    --accent-blue-rgb: 0, 191, 255;
    --accent-purple: #7C4DFF;
    --accent-purple-rgb: 124, 77, 255;
    --accent-green: #00E676;
    --accent-green-rgb: 0, 230, 118;
    
    --gradient-primary: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-purple) 100%);
    --gradient-card-glow: radial-gradient(800px circle at var(--mouse-x, 0) var(--mouse-y, 0), rgba(255, 255, 255, 0.06), transparent 40%);
    
    /* Fonts */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Layout */
    --header-height: 80px;
    --border-radius: 16px;
    --container-width: 1200px;
}

/* 2. BASE STYLES & RESET */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    overflow-x: hidden;
}

body.no-scroll {
    overflow: hidden;
}

.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

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

ul {
    list-style: none;
}

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

section {
    position: relative;
    z-index: 1;
}

.section-padding {
    padding: 100px 0;
}

/* 3. SCROLLBAR & TYPOGRAPHY */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
    background: var(--bg-secondary);
    border: 2px solid var(--bg-primary);
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-purple);
}

.section-header {
    margin-bottom: 60px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.section-tag {
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
    margin-bottom: 12px;
}

.section-title {
    font-size: 40px;
    margin-bottom: 16px;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 18px;
}

/* Accent texts */
.accent-text, .accent {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* 4. BUTTONS & UI ELEMENTS */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 30px;
    font-family: var(--font-heading);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-normal);
    border: none;
    font-size: 15px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-primary);
    box-shadow: 0 4px 20px rgba(124, 77, 255, 0.3);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--accent-purple) 0%, var(--accent-blue) 100%);
    opacity: 0;
    transition: var(--transition-normal);
    z-index: -1;
}

.btn-primary:hover::before {
    opacity: 1;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(124, 77, 255, 0.5);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 1px solid var(--border-card);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.btn-youtube {
    background: #FF0000;
    color: var(--text-primary);
    box-shadow: 0 4px 15px rgba(255, 0, 0, 0.3);
}

.btn-youtube:hover {
    background: #CC0000;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 0, 0, 0.5);
}

/* Glassmorphism Cards */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-card);
    border-radius: var(--border-radius);
    padding: 30px;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.glass-card:hover {
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

/* Background glows */
.bg-glow {
    position: fixed;
    border-radius: 50%;
    filter: blur(150px);
    opacity: 0.12;
    pointer-events: none;
    z-index: 0;
}

.bg-glow-1 {
    width: 600px;
    height: 600px;
    background: var(--accent-blue);
    top: -200px;
    right: -200px;
}

.bg-glow-2 {
    width: 500px;
    height: 500px;
    background: var(--accent-purple);
    bottom: -100px;
    left: -150px;
}

.bg-glow-3 {
    width: 400px;
    height: 400px;
    background: var(--accent-green);
    top: 40%;
    left: 45%;
    transform: translate(-50%, -50%);
}

/* 5. LOADING SCREEN */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: var(--bg-primary);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.6s ease, visibility 0.6s;
}

.loading-screen.fade-out {
    opacity: 0;
    visibility: hidden;
}

.loader-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 400px;
    width: 90%;
    text-align: center;
}

.logo-wrapper {
    position: relative;
    width: 90px;
    height: 90px;
    margin-bottom: 24px;
}

.loader-logo {
    width: 100%;
    height: 100%;
    object-fit: contain;
    animation: pulse 2s infinite ease-in-out;
}

.logo-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    background: var(--accent-blue);
    border-radius: 50%;
    filter: blur(25px);
    opacity: 0.5;
    z-index: -1;
    animation: pulse-glow 2s infinite ease-in-out;
}

.loader-text-wrapper {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 30px;
}

.loader-title {
    font-family: var(--font-heading);
    font-size: 28px;
    font-weight: 800;
    letter-spacing: 0.1em;
}

.loader-subtitle {
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 400;
    letter-spacing: 0.05em;
}

.loader-bar {
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 2px;
    overflow: hidden;
}

.loader-progress {
    height: 100%;
    width: 0%;
    background: var(--gradient-primary);
    border-radius: 2px;
    transition: width 0.3s ease;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.08); }
}

@keyframes pulse-glow {
    0%, 100% { opacity: 0.4; filter: blur(20px); }
    50% { opacity: 0.8; filter: blur(35px); }
}

/* 6. SITE HEADER & NAVIGATION */
#site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background: rgba(7, 11, 20, 0.7);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    z-index: 1000;
    transition: var(--transition-normal);
}

#site-header.scrolled {
    background: rgba(7, 11, 20, 0.9);
    height: 70px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
}

.header-logo {
    height: 40px;
    width: auto;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 800;
    letter-spacing: 0.05em;
}

#main-nav ul {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    letter-spacing: 0.02em;
}

.nav-link:hover {
    color: var(--text-primary);
}

.btn-nav-contact {
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 600;
    padding: 8px 18px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-card);
}

.btn-nav-contact:hover {
    background: var(--text-primary);
    color: var(--bg-primary);
    border-color: var(--text-primary);
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.hamburger {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    position: relative;
    transition: background 0.3s;
}

.hamburger::before, .hamburger::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    left: 0;
    transition: transform 0.3s;
}

.hamburger::before { top: -8px; }
.hamburger::after { bottom: -8px; }

/* 7. HERO SECTION */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: var(--header-height);
    overflow: hidden;
}

.hero-bg-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    z-index: -2;
    opacity: 0.25;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, transparent 30%, var(--bg-primary) 85%);
    z-index: -1;
}

.hero-container {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    align-items: center;
    gap: 40px;
    width: 100%;
}

.hero-content {
    max-width: 650px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-card);
    border-radius: 20px;
    margin-bottom: 24px;
    font-size: 13px;
    font-weight: 500;
}

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

.badge-text {
    color: var(--text-secondary);
}

.hero-title {
    font-size: 56px;
    line-height: 1.1;
    margin-bottom: 24px;
    font-family: var(--font-heading);
}

.hero-description {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

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

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

.hero-card-glow {
    position: relative;
    width: 320px;
    height: 320px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-card-glow::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%;
    filter: blur(40px);
    opacity: 0.35;
    animation: blob-shape 12s infinite linear alternate;
    z-index: -1;
}

.floating-logo {
    width: 180px;
    height: 180px;
    object-fit: contain;
    filter: drop-shadow(0 15px 30px rgba(0, 0, 0, 0.5));
    animation: float 6s infinite ease-in-out;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

@keyframes blob-shape {
    0% { border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%; }
    100% { border-radius: 70% 30% 50% 50% / 30% 60% 40% 70%; }
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.scroll-indicator:hover {
    color: var(--text-primary);
}

.mouse {
    width: 24px;
    height: 40px;
    border: 2px solid currentColor;
    border-radius: 12px;
    display: flex;
    justify-content: center;
    padding-top: 6px;
}

.wheel {
    width: 4px;
    height: 8px;
    background: currentColor;
    border-radius: 2px;
    animation: scroll-wheel 1.5s infinite ease-in-out;
}

.arrow {
    font-size: 12px;
    animation: scroll-arrow 1.5s infinite ease-in-out;
}

@keyframes scroll-wheel {
    0% { transform: translateY(0); opacity: 1; }
    50% { transform: translateY(6px); opacity: 0.3; }
    100% { transform: translateY(0); opacity: 1; }
}

@keyframes scroll-arrow {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(4px); }
}

/* 8. HAKKIMIZDA (ABOUT) */
.about-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: center;
}

.panel-title {
    font-size: 32px;
    margin-bottom: 20px;
}

.panel-text {
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 30px;
}

.feature-badge {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
}

.feature-badge i {
    color: var(--accent-green);
    font-size: 18px;
}

.values-card {
    border-left: 4px solid var(--accent-purple);
}

.values-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 30px;
}

.values-header h4 {
    font-size: 20px;
}

.glow-icon {
    font-size: 24px;
    color: var(--accent-purple);
    filter: drop-shadow(0 0 8px rgba(124, 77, 255, 0.6));
}

.values-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.values-list li {
    display: flex;
    gap: 20px;
}

.value-number {
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: 800;
    color: rgba(255, 255, 255, 0.1);
    line-height: 1;
}

.value-content h5 {
    font-size: 16px;
    margin-bottom: 4px;
}

.value-content p {
    color: var(--text-secondary);
    font-size: 14px;
}

/* 9. HİZMETLER (SERVICES) */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.service-card {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.service-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-card-glow);
    pointer-events: none;
    z-index: 2;
}

.service-icon-wrapper {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 24px;
}

.blue-glow {
    background: rgba(0, 191, 255, 0.1);
    color: var(--accent-blue);
    border: 1px solid rgba(0, 191, 255, 0.2);
}

.purple-glow {
    background: rgba(124, 77, 255, 0.1);
    color: var(--accent-purple);
    border: 1px solid rgba(124, 77, 255, 0.2);
}

.green-glow {
    background: rgba(0, 230, 118, 0.1);
    color: var(--accent-green);
    border: 1px solid rgba(0, 230, 118, 0.2);
}

.service-card-title {
    font-size: 20px;
    margin-bottom: 12px;
}

.service-card-desc {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 24px;
    flex-grow: 1;
}

.service-features {
    display: flex;
    flex-direction: column;
    gap: 8px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 16px;
}

.service-features li {
    font-size: 13px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.service-features li i {
    font-size: 10px;
    opacity: 0.5;
}

/* 10. TEKNOLOJİLER (TECHNOLOGIES) */
.tech-container {
    width: 100%;
    overflow: hidden;
    position: relative;
    padding: 20px 0;
}

.tech-container::before, .tech-container::after {
    content: '';
    position: absolute;
    top: 0;
    width: 150px;
    height: 100%;
    z-index: 2;
    pointer-events: none;
}

.tech-container::before {
    left: 0;
    background: linear-gradient(to right, var(--bg-primary), transparent);
}

.tech-container::after {
    right: 0;
    background: linear-gradient(to left, var(--bg-primary), transparent);
}

.tech-track {
    display: flex;
    gap: 24px;
    width: max-content;
    animation: marquee 25s linear infinite;
}

.tech-badge {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: 30px;
    font-size: 15px;
    font-weight: 500;
}

.tech-badge i {
    font-size: 20px;
}

.html-icon { color: #E34F26; }
.css-icon { color: #1572B6; }
.js-icon { color: #F7DF1E; }
.react-icon, .native-icon { color: #61DAFB; }
.node-icon { color: #339933; }
.firebase-icon { color: #FFCA28; }
.sql-icon { color: #336791; }
.python-icon { color: #3776AB; }
.micro-icon { color: #00979D; }
.tf-icon { color: #FF6F00; }
.docker-icon { color: #2496ED; }
.git-icon { color: #F05032; }

@keyframes marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* 11. PROJELER (PROJECTS) */
.project-filters {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
}

.filter-btn {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-card);
    color: var(--text-secondary);
    padding: 8px 20px;
    border-radius: 20px;
    cursor: pointer;
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition-normal);
}

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

.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.project-card {
    padding: 0;
    display: flex;
    flex-direction: column;
}

.project-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-card-glow);
    pointer-events: none;
    z-index: 2;
}

.project-img-wrapper {
    width: 100%;
    height: 250px;
    overflow: hidden;
    position: relative;
}

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

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

.project-category {
    position: absolute;
    top: 20px;
    left: 20px;
    background: rgba(7, 11, 20, 0.8);
    backdrop-filter: blur(5px);
    border: 1px solid var(--border-card);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.project-info {
    padding: 30px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.project-title {
    font-size: 22px;
    margin-bottom: 12px;
}

.project-desc {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 24px;
    flex-grow: 1;
}

.project-tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 24px;
}

.project-tech-stack span {
    font-size: 11px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-card);
    padding: 4px 10px;
    border-radius: 10px;
    color: var(--text-secondary);
}

.project-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--accent-blue);
    margin-top: auto;
}

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

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

.project-skeleton {
    grid-column: span 2;
    text-align: center;
    padding: 50px 0;
    color: var(--text-secondary);
}

/* 12. PLAY STORE SHOWCASE */
.app-showcase-container {
    width: 100%;
}

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

.app-info-panel h3 {
    font-size: 36px;
    margin-bottom: 6px;
}

.app-tagline {
    font-size: 18px;
    color: var(--accent-blue);
    font-weight: 500;
    margin-bottom: 20px;
}

.app-description {
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.app-stats-row {
    display: flex;
    gap: 40px;
    margin-bottom: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding: 20px 0;
}

.app-stat-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.app-stat-val {
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: 700;
    color: var(--accent-green);
}

.app-stat-val i {
    color: #FFC107;
}

.app-stat-label {
    font-size: 12px;
    color: var(--text-muted);
}

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

.btn-playstore {
    background: #00E676;
    color: #070B14;
    box-shadow: 0 4px 15px rgba(0, 230, 118, 0.3);
}

.btn-playstore:hover {
    background: #00B050;
    box-shadow: 0 6px 20px rgba(0, 230, 118, 0.5);
    transform: translateY(-2px);
}

/* Image Carousel */
.app-gallery-panel {
    display: flex;
    flex-direction: column;
    gap: 20px;
    width: 100%;
}

.carousel-container {
    width: 100%;
    position: relative;
    overflow: hidden;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-card);
    height: 480px;
    background: #000000;
}

.carousel-track {
    display: flex;
    height: 100%;
    transition: transform 0.5s ease-in-out;
}

.carousel-slide {
    min-width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.carousel-slide img {
    height: 100%;
    width: auto;
    object-fit: contain;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(7, 11, 20, 0.8);
    backdrop-filter: blur(5px);
    border: 1px solid var(--border-card);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    transition: var(--transition-fast);
}

.carousel-btn:hover {
    background: var(--text-primary);
    color: var(--bg-primary);
}

.carousel-btn.prev { left: 16px; }
.carousel-btn.next { right: 16px; }

.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 10px;
}

.carousel-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    cursor: pointer;
    transition: var(--transition-fast);
}

.carousel-dot.active {
    background: var(--accent-green);
    width: 20px;
    border-radius: 4px;
}

.app-skeleton {
    text-align: center;
    padding: 50px 0;
    color: var(--text-secondary);
}

/* 13. YOUTUBE GRID */
.youtube-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.video-card {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.video-thumb-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 16/9;
    overflow: hidden;
}

.video-thumb {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.video-card:hover .video-thumb {
    transform: scale(1.05);
}

.video-duration {
    position: absolute;
    bottom: 12px;
    right: 12px;
    background: rgba(0, 0, 0, 0.8);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 500;
}

.video-play-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(7, 11, 20, 0.4);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: var(--transition-normal);
}

.video-card:hover .video-play-overlay {
    opacity: 1;
}

.play-icon-bg {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: #FF0000;
    color: #FFFFFF;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    box-shadow: 0 4px 15px rgba(255, 0, 0, 0.4);
    transform: scale(0.9);
    transition: var(--transition-normal);
}

.video-card:hover .play-icon-bg {
    transform: scale(1);
}

.video-content {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.video-card-title {
    font-size: 16px;
    margin-bottom: 8px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.video-card-desc {
    color: var(--text-secondary);
    font-size: 13px;
    margin-bottom: 16px;
    flex-grow: 1;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.video-meta {
    display: flex;
    justify-content: space-between;
    font-size: 11px;
    color: var(--text-muted);
}

.youtube-footer {
    margin-top: 50px;
}

.video-skeleton {
    grid-column: span 3;
    text-align: center;
    padding: 50px 0;
    color: var(--text-secondary);
}

/* YouTube Sub-sections & Shorts Grid Styles */
.youtube-sub-title {
    font-size: 20px;
    margin-top: 40px;
    margin-bottom: 24px;
    font-family: var(--font-heading);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 12px;
}

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

.youtube-videos-wrapper {
    margin-bottom: 60px;
}

.long-videos-grid {
    grid-template-columns: repeat(2, 1fr) !important;
}

.shorts-grid {
    grid-template-columns: repeat(3, 1fr) !important;
}

.shorts-thumb-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 9/16;
    overflow: hidden;
}

.shorts-thumb-wrapper .video-thumb {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 14. İSTATİSTİKLER (STATS) */
.stats-section {
    background: var(--bg-secondary);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.stat-card {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 64px;
    font-weight: 800;
    line-height: 1;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.stat-suffix {
    font-family: var(--font-heading);
    font-size: 40px;
    font-weight: 800;
    color: var(--accent-purple);
}

.stat-title {
    font-size: 15px;
    color: var(--text-secondary);
    margin-top: 12px;
}

/* 15. REFERANSLAR (TESTIMONIALS) */
.testimonials-slider {
    max-width: 900px;
    margin: 0 auto;
    overflow: hidden;
    position: relative;
    padding: 10px;
}

.testimonials-track {
    display: flex;
    transition: transform 0.5s ease-in-out;
}

.testimonial-card {
    min-width: 100%;
    padding: 40px;
    border-top: 2px solid var(--accent-blue);
    text-align: center;
}

.testimonial-rating {
    color: #FFC107;
    margin-bottom: 20px;
}

.testimonial-rating i {
    margin: 0 2px;
}

.testimonial-text {
    font-size: 18px;
    color: var(--text-secondary);
    font-style: italic;
    margin-bottom: 30px;
    line-height: 1.8;
}

.testimonial-author {
    display: flex;
    justify-content: center;
    align-items: center;
}

.author-name {
    display: block;
    font-family: var(--font-heading);
    font-size: 16px;
    font-weight: 600;
}

.author-role {
    display: block;
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 4px;
}

.slider-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 30px;
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    cursor: pointer;
    transition: var(--transition-fast);
}

.dot.active {
    background: var(--accent-blue);
    width: 20px;
    border-radius: 4px;
}

/* 16. BLOG GRID */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.blog-card {
    padding: 0;
    display: flex;
    flex-direction: column;
}

.blog-img-wrapper {
    width: 100%;
    height: 200px;
    overflow: hidden;
    position: relative;
}

.blog-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.blog-card:hover .blog-img-wrapper img {
    transform: scale(1.05);
}

.blog-category {
    position: absolute;
    bottom: 16px;
    left: 16px;
    background: rgba(124, 77, 255, 0.9);
    border: 1px solid rgba(124, 77, 255, 0.2);
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
}

.blog-content {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.blog-date {
    font-size: 11px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.blog-title {
    font-size: 18px;
    margin-bottom: 12px;
    line-height: 1.4;
}

.blog-excerpt {
    color: var(--text-secondary);
    font-size: 13px;
    margin-bottom: 20px;
    flex-grow: 1;
}

.blog-link {
    font-size: 13px;
    font-weight: 600;
    color: var(--accent-purple);
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: auto;
}

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

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

/* 17. SIKÇA SORULAN SORULAR (FAQ) */
.faq-accordion {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    padding: 0;
    cursor: pointer;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px;
    font-family: var(--font-heading);
    font-size: 16px;
    font-weight: 600;
}

.faq-icon {
    font-size: 14px;
    color: var(--text-muted);
    transition: var(--transition-normal);
}

.faq-answer {
    padding: 0 24px 24px 24px;
    color: var(--text-secondary);
    font-size: 14px;
    display: none;
}

.faq-item.active {
    border-color: rgba(124, 77, 255, 0.3);
}

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

/* 18. İLETİŞİM (CONTACT) */
.contact-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 50px;
}

.contact-card h3 {
    font-size: 24px;
    margin-bottom: 12px;
}

.contact-card p {
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.contact-details-list {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-details-list li {
    display: flex;
    align-items: center;
    gap: 20px;
}

.contact-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border-card);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: var(--accent-blue);
}

.contact-text {
    display: flex;
    flex-direction: column;
}

.contact-text span:first-child {
    font-size: 12px;
    color: var(--text-muted);
}

.contact-text span:last-child, .contact-text a {
    font-size: 15px;
    font-weight: 500;
}

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

.social-wrapper {
    margin-top: 50px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 30px;
}

.social-wrapper h4 {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-card);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-normal);
}

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

/* Form Styling */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

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

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

.form-group label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input, .form-group select, .form-group textarea {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-card);
    border-radius: 8px;
    padding: 14px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 14px;
    transition: var(--transition-fast);
    outline: none;
}

.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    border-color: var(--accent-purple);
    background: rgba(255, 255, 255, 0.06);
    box-shadow: 0 0 10px rgba(124, 77, 255, 0.15);
}

.form-group select option {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.btn-submit {
    align-self: flex-start;
    padding: 14px 32px;
}

.form-status-msg {
    margin-top: 10px;
    font-size: 14px;
    font-weight: 500;
    padding: 10px;
    border-radius: 6px;
    display: none;
}

.form-status-msg.success {
    display: block;
    background: rgba(0, 230, 118, 0.1);
    color: var(--accent-green);
    border: 1px solid rgba(0, 230, 118, 0.2);
}

.form-status-msg.error {
    display: block;
    background: rgba(255, 23, 68, 0.1);
    color: #FF1744;
    border: 1px solid rgba(255, 23, 68, 0.2);
}

/* 19. SITE FOOTER */
#site-footer {
    background: #04070D;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    padding: 80px 0 30px 0;
}

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

.footer-brand {
    max-width: 320px;
}

.footer-logo {
    height: 36px;
    width: auto;
}

.footer-desc {
    color: var(--text-secondary);
    font-size: 14px;
    margin-top: 16px;
    line-height: 1.6;
}

.footer-links-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.footer-col h4 {
    font-size: 15px;
    margin-bottom: 24px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-col a {
    color: var(--text-secondary);
    font-size: 14px;
}

.footer-col a:hover {
    color: var(--text-primary);
    transform: translateX(3px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    padding-top: 30px;
}

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

.copy-text {
    font-size: 13px;
    color: var(--text-muted);
}

.legal-links {
    display: flex;
    gap: 24px;
}

.legal-links a {
    font-size: 13px;
    color: var(--text-muted);
}

.legal-links a:hover {
    color: var(--text-secondary);
}

/* ==========================================================================
   20. SCROLL REVEAL ANIMATIONS (INTERSECTION OBSERVER)
   ========================================================================== */
.reveal-fade, .reveal-up, .reveal-left, .reveal-right, .reveal-zoom {
    opacity: 0;
    transition: transform var(--transition-slow), opacity var(--transition-slow);
}

.reveal-up { transform: translateY(40px); }
.reveal-left { transform: translateX(-40px); }
.reveal-right { transform: translateX(40px); }
.reveal-zoom { transform: scale(0.9); }

.reveal-fade.active, .reveal-up.active, .reveal-left.active, .reveal-right.active, .reveal-zoom.active {
    opacity: 1;
    transform: translate(0) scale(1);
}

/* ==========================================================================
   21. RESPONSIVE DESIGN (MEDIA QUERIES)
   ========================================================================== */

@media (max-width: 1024px) {
    :root {
        --header-height: 70px;
    }
    
    .section-padding {
        padding: 80px 0;
    }
    
    .section-title {
        font-size: 34px;
    }
    
    .hero-title {
        font-size: 44px;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 30px;
    }
    
    .hero-content {
        max-width: 100%;
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-visual {
        margin-top: 20px;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .project-skeleton {
        grid-column: span 1;
    }
    
    .app-showcase {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .carousel-container {
        height: 400px;
    }
    
    .youtube-grid, .long-videos-grid, .shorts-grid {
        grid-template-columns: repeat(2, 1fr) !important;
    }
    
    .video-skeleton {
        grid-column: span 2;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    /* Mobile Menu Burger Entegrasyonu */
    .menu-toggle {
        display: block;
    }
    
    #main-nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        width: 100vw;
        height: calc(100vh - var(--header-height));
        background: var(--bg-primary);
        z-index: 999;
        transform: translateX(100%);
        transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        border-top: 1px solid rgba(255, 255, 255, 0.05);
    }
    
    #main-nav.active {
        transform: translateX(0);
    }
    
    #main-nav ul {
        flex-direction: column;
        padding: 50px 30px;
        gap: 24px;
        align-items: flex-start;
    }
    
    .nav-link {
        font-size: 18px;
    }
    
    .btn-nav-contact {
        width: 100%;
        text-align: center;
        margin-top: 12px;
    }
    
    /* Hamburger Active */
    .menu-toggle.active .hamburger {
        background: transparent;
    }
    
    .menu-toggle.active .hamburger::before {
        transform: translateY(8px) rotate(45deg);
    }
    
    .menu-toggle.active .hamburger::after {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    /* Grid Adjustments */
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .youtube-grid, .long-videos-grid, .shorts-grid {
        grid-template-columns: 1fr !important;
    }
    
    .video-skeleton {
        grid-column: span 1;
    }
    
    .blog-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-links-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .bottom-container {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .section-title {
        font-size: 28px;
    }
    
    .hero-title {
        font-size: 34px;
    }
    
    .hero-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-actions .btn {
        width: 100%;
    }
    
    .about-features {
        grid-template-columns: 1fr;
    }
    
    .carousel-container {
        height: 320px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .btn-submit {
        width: 100%;
    }
}