/* ==========================================
   Navigation
   ========================================== */

nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    transition: var(--transition-smooth);
    box-shadow: 0 2px 10px rgba(26, 43, 74, 0.05);
}

nav.scrolled {
    background: rgba(255, 255, 255, 0.98);
    padding: 0.75rem 5%;
    box-shadow: 0 2px 20px rgba(26, 43, 74, 0.1);
}

.logo {
    display: flex;
    align-items: center;
    height: 60px;
}

.logo img {
    height: 100%;
    width: auto;
    object-fit: contain;
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--color-navy-dark);
    transition: var(--transition-fast);
}

.nav-links {
    display: flex;
    gap: 3rem;
    list-style: none;
}

.nav-links a {
    color: var(--color-navy-dark);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    letter-spacing: 0.03em;
    position: relative;
    transition: var(--transition-fast);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-blue-accent);
    transition: var(--transition-fast);
}

.nav-links a:hover {
    color: var(--color-blue-accent);
}

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

/* ==========================================
   Hero Section
   ========================================== */

.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--color-white) 0%, var(--color-off-white) 100%);
    padding-top: 200px;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #e8ecf0;
    background-image: url('../assets/sulekler_main.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0;
    z-index: 1;
    transition: opacity 0.6s ease-in;
}

.webp .hero::before {
    background-image: url('../assets/sulekler_main.webp');
}

.hero.image-loaded::before {
    opacity: 0.4;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(74, 144, 226, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(74, 144, 226, 0.05) 0%, transparent 50%);
    animation: pulseGlow 8s ease-in-out infinite;
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 10;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 5%;
    width: 100%;
    margin-top: 30px;
}

.hero-subtitle {
    font-size: 0.95rem;
    color: var(--color-blue-accent);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    font-weight: 500;
    margin-bottom: 1rem;
    opacity: 0;
    animation: fadeInUp 1s ease forwards;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 5.5rem);
    font-weight: 300;
    line-height: 1.15;
    margin-bottom: 1.5rem;
    opacity: 0;
    animation: fadeInUp 1s ease forwards 0.2s;
    overflow: visible;
    padding-top: 0.3em;
}

.hero-title strong {
    font-weight: 700;
    color: var(--color-blue-accent);
    display: block;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--color-text-grey);
    max-width: 700px;
    line-height: 1.7;
    margin-bottom: 2.5rem;
    opacity: 0;
    animation: fadeInUp 1s ease forwards 0.4s;
}

.hero-stats {
    display: flex;
    gap: 4rem;
    opacity: 0;
    animation: fadeInUp 1s ease forwards 0.6s;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-blue-accent);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--color-text-grey);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

/* ==========================================
   Footer
   ========================================== */

footer {
    background: var(--color-navy-dark);
    padding: 5rem 5% 2rem;
    border-top: 1px solid rgba(74, 144, 226, 0.3);
    color: var(--color-white);
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 4rem;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.footer-logo {
    width: 300px;
    height: auto;
}

.footer-brand h3 {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-blue-accent);
    margin-bottom: 1rem;
    letter-spacing: 0.05em;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.footer-section h4 {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: var(--color-blue-accent);
    font-weight: 600;
}

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

.footer-section ul li {
    margin-bottom: 0.8rem;
}

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition-fast);
    font-size: 0.95rem;
}

.footer-section ul li a:hover {
    color: var(--color-blue-accent);
    padding-left: 5px;
}

.footer-bottom {
    max-width: 1400px;
    margin: 3rem auto 0;
    padding-top: 2rem;
    border-top: 1px solid rgba(74, 144, 226, 0.2);
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}