/* ============================
   OZKAN GROUP - GLOBAL STYLES
   Modern, Prestigious Design
   ============================ */

/* CSS Reset & Base */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Logo Colors */
    --primary-dark: #1a2744;
    --primary-medium: #3d5a80;
    --primary-light: #5c7aa0;
    --accent: #4a6fa5;

    /* Neutral Colors */
    --bg-light: #f5f5f5;
    --bg-white: #ffffff;
    --text-dark: #1a2744;
    --text-light: #6b7280;
    --text-white: #ffffff;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #1a2744 0%, #3d5a80 100%);
    --gradient-hero: linear-gradient(135deg, rgba(26, 39, 68, 0.6) 0%, rgba(61, 90, 128, 0.5) 100%);
    --gradient-card: linear-gradient(145deg, rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.7));

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(26, 39, 68, 0.08);
    --shadow-md: 0 4px 20px rgba(26, 39, 68, 0.12);
    --shadow-lg: 0 8px 40px rgba(26, 39, 68, 0.16);
    --shadow-xl: 0 20px 60px rgba(26, 39, 68, 0.2);

    /* Transitions */
    --transition-fast: all 0.2s ease;
    --transition-normal: all 0.3s ease;
    --transition-slow: all 0.5s ease;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-light);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

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

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

.section-title {
    font-size: 2.5rem;
    color: var(--primary-dark);
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-light);
    max-width: 600px;
}

.subsection-title {
    font-size: 1.25rem;
    color: var(--primary-dark);
    margin-top: 30px;
    margin-bottom: 10px;
    position: relative;
}

.subsection-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 40px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

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

/* ============================
   NAVBAR
   ============================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 18px 0;
    background: linear-gradient(to bottom, rgba(26, 39, 68, 0.95), rgba(26, 39, 68, 0.9));
    backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    transition: var(--transition-normal);
}

.navbar.scrolled {
    background: rgba(26, 39, 68, 0.98);
    padding: 12px 0;
    box-shadow: var(--shadow-md);
}

.navbar .container {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    max-width: 100%;
    padding: 0 124px;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.navbar-brand img {
    height: 42px;
    width: auto;
}

.navbar-logo {
    margin-left: -10px;
}

.navbar-brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.navbar-brand-text {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-white);
    letter-spacing: 0.5px;
}

.navbar-brand-text small {
    font-size: 0.75rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.7);
}

.navbar-nav {
    display: flex;
    list-style: none;
    gap: 32px;
    margin-left: auto;
}

.navbar-nav a {
    color: var(--text-white);
    font-weight: 500;
    font-size: 0.9rem;
    position: relative;
    padding: 4px 0;
    transition: var(--transition-fast);
}

.navbar-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: var(--transition-normal);
}

.navbar-nav a:hover::after {
    width: 100%;
}

.navbar-cta {
    margin-left: 32px;
    padding: 10px 20px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.7);
    color: var(--text-white);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    background: rgba(255, 255, 255, 0.06);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: var(--transition-fast);
    white-space: nowrap;
}

.navbar-cta:hover {
    background: var(--accent);
    border-color: var(--accent);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.navbar-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
}

.navbar-toggle span {
    width: 25px;
    height: 2px;
    background: var(--text-white);
    transition: var(--transition-fast);
}

/* ============================
   HERO SECTION
   ============================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: var(--primary-dark); /* Fallback video yüklenmezse */
}

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

.hero-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-hero);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--text-white);
    padding: 20px;
    max-width: 900px;
}

.hero-logo {
    width: 200px;
    margin-bottom: 30px;
    animation: fadeInUp 1s ease;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 20px;
    animation: fadeInUp 1s ease 0.2s both;
}

.hero-text {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: 40px;
    animation: fadeInUp 1s ease 0.4s both;
}

.hero-btn {
    display: inline-block;
    padding: 16px 40px;
    background: var(--bg-white);
    color: var(--primary-dark);
    font-weight: 600;
    font-size: 1rem;
    border-radius: 50px;
    transition: var(--transition-normal);
    animation: fadeInUp 1s ease 0.6s both;
}

.hero-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    animation: bounce 2s infinite;
}

.scroll-indicator span {
    display: block;
    width: 30px;
    height: 50px;
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 15px;
    position: relative;
}

.scroll-indicator span::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 10px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 3px;
    animation: scrollDown 2s infinite;
}

/* ============================
   SECTIONS COMMON
   ============================ */
section {
    padding: 90px 0;
}

section:nth-child(even) {
    background: var(--bg-white);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header .section-title::after {
    left: 50%;
    transform: translateX(-50%);
}

.section-header .section-subtitle {
    margin: 20px auto 0;
}

/* ============================
   ABOUT SECTION
   ============================ */
.about {
    background: var(--bg-light);
}

.about-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 40px;
    align-items: flex-start;
}

.about-content {
    background: var(--bg-white);
    border-radius: 24px;
    padding: 40px 40px 35px;
    box-shadow: var(--shadow-md);
}

.about-content h2 {
    font-size: 2.5rem;
    color: var(--primary-dark);
    margin-bottom: 20px;
}

.about-content p {
    color: var(--text-light);
    margin-bottom: 20px;
    font-size: 1.05rem;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.about-extra {
    margin-top: 50px;
    padding-top: 30px;
    border-top: 1px solid #e5e7eb;
}

.about-extra p {
    color: var(--text-light);
    margin-bottom: 18px;
    font-size: 1rem;
}

.about-extra-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 30px;
}

.about-extra-col {
    min-width: 0;
}

.values-list,
.slogan-list {
    list-style: none;
    margin: 20px 0 10px;
    padding-left: 0;
}

.values-list li,
.slogan-list li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 8px;
    color: var(--text-light);
    font-size: 0.98rem;
}

.values-list li::before,
.slogan-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    top: 0;
    color: var(--primary-medium);
}

.stat-item {
    text-align: center;
    padding: 20px;
    background: var(--bg-light);
    border-radius: 15px;
    transition: var(--transition-normal);
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-dark);
    display: block;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-top: 5px;
}

.about-image {
    position: relative;
}

.about-image img {
    width: 100%;
    border-radius: 24px;
    box-shadow: var(--shadow-lg);
}

.about-image::before {
    content: '';
    position: absolute;
    top: -20px;
    right: -20px;
    width: 100%;
    height: 100%;
    border: 3px solid var(--primary-medium);
    border-radius: 20px;
    z-index: -1;
}

/* ============================
   SERVICES SECTION
   ============================ */
.services {
    background: var(--bg-light);
}

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

.service-card {
    background: var(--bg-white);
    border-radius: 20px;
    padding: 40px;
    text-align: center;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

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

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

.service-card:hover::before {
    transform: scaleX(1);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    font-size: 2rem;
    color: var(--text-white);
    transition: var(--transition-normal);
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(5deg);
}

.service-card h3 {
    font-size: 1.4rem;
    color: var(--primary-dark);
    margin-bottom: 15px;
}

.service-card p {
    color: var(--text-light);
    margin-bottom: 25px;
    font-size: 0.95rem;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-medium);
    font-weight: 600;
    transition: var(--transition-fast);
}

.service-link:hover {
    color: var(--primary-dark);
    gap: 12px;
}

/* ============================
   PRESS SECTION
   ============================ */
.press {
    background: var(--bg-white);
}

.press-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.press-card {
    background: var(--bg-light);
    border-radius: 20px;
    overflow: hidden;
    transition: var(--transition-normal);
}

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

.press-image {
    height: 200px;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-size: 3rem;
}

.press-content {
    padding: 25px;
}

.press-date {
    font-size: 0.85rem;
    color: var(--primary-medium);
    font-weight: 600;
    margin-bottom: 10px;
}

.press-card h3 {
    font-size: 1.2rem;
    color: var(--primary-dark);
    margin-bottom: 10px;
    line-height: 1.4;
}

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

/* ============================
   CONTACT SECTION
   ============================ */
.contact {
    background: var(--bg-light);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info h2 {
    font-size: 2.5rem;
    color: var(--primary-dark);
    margin-bottom: 20px;
}

.contact-info p {
    color: var(--text-light);
    margin-bottom: 40px;
    font-size: 1.1rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 20px;
}

.contact-item-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-size: 1.5rem;
    flex-shrink: 0;
}

.contact-item-text h4 {
    font-size: 1.1rem;
    color: var(--primary-dark);
    margin-bottom: 5px;
}

.contact-item-text p {
    color: var(--text-light);
    margin: 0;
    font-size: 0.95rem;
}

.contact-form {
    background: var(--bg-white);
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--primary-dark);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px 20px;
    border: 2px solid #e5e7eb;
    border-radius: 12px;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-medium);
    box-shadow: 0 0 0 4px rgba(61, 90, 128, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.submit-btn {
    width: 100%;
    padding: 16px;
    background: var(--gradient-primary);
    color: var(--text-white);
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-normal);
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ============================
   FOOTER
   ============================ */
.footer {
    background: var(--primary-dark);
    color: var(--text-white);
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 50px;
}

.footer-brand img {
    height: 50px;
    margin-bottom: 20px;
}

.footer-logo {
    height: 42px;
    width: auto;
    margin-bottom: 18px;
}

.footer-brand p {
    margin-top: 8px;
}

.footer-brand p {
    opacity: 0.8;
    line-height: 1.8;
    font-size: 0.95rem;
}

.footer-links h4 {
    font-size: 1.1rem;
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 10px;
}

.footer-links h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--primary-light);
}

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

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

.footer-links a {
    opacity: 0.8;
    transition: var(--transition-fast);
}

.footer-links a:hover {
    opacity: 1;
    padding-left: 5px;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-links a {
    width: 45px;
    height: 45px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-normal);
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    text-align: center;
    opacity: 0.7;
    font-size: 0.9rem;
}

/* ============================
   ANIMATIONS
   ============================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bounce {

    0%,
    20%,
    50%,
    80%,
    100% {
        transform: translateX(-50%) translateY(0);
    }

    40% {
        transform: translateX(-50%) translateY(-10px);
    }

    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

@keyframes scrollDown {
    0% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }

    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(15px);
    }
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: var(--transition-slow);
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================
   RESPONSIVE DESIGN
   ============================ */
@media (max-width: 1024px) {

    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-image {
        order: -1;
    }

    .about-extra {
        margin-top: 40px;
        max-width: 100%;
        padding-top: 20px;
    }

    .about-extra-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .navbar-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background: var(--primary-dark);
        flex-direction: column;
        padding: 80px 30px 30px;
        gap: 25px;
        transition: var(--transition-normal);
    }

    .navbar-nav.active {
        right: 0;
    }

    .navbar-toggle {
        display: flex;
    }

    .navbar-cta {
        display: none;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .about-stats {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-links h4::after {
        left: 50%;
        transform: translateX(-50%);
    }

    .social-links {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-text {
        font-size: 1rem;
    }

    section {
        padding: 50px 0;
    }

    .service-card,
    .contact-form {
        padding: 25px;
    }
}