*,
*::before,
*::after {
    box-sizing: border-box;
}

:root {
    --bg: #f5f7fb;
    --bg-alt: #ffffff;
    --primary: #2563eb;
    --primary-soft: #dbeafe;
    --text: #111827;
    --muted: #6b7280;
    --border: #e5e7eb;
    --radius-lg: 1.25rem;
    --shadow-soft: 0 10px 25px rgba(15, 23, 42, 0.08);
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
}

/* Erişilebilirlik */
.skip-link {
    position: absolute;
    left: -999px;
    top: 0;
    background: #000;
    color: #fff;
    padding: 0.75rem 1.25rem;
    z-index: 1000;
}

.skip-link:focus {
    left: 0.75rem;
    top: 0.75rem;
}

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

/* Layout */
.container {
    width: 100%;
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 1.25rem;
}

/* Header */
.site-header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 50;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 0.5rem;
    gap: 1.5rem;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-circle {
    width: 42px;
    height: 42px;
    border-radius: 999px;
    background: var(--primary-soft);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
}

.logo-small {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--muted);
    margin: 0;
}

.site-title {
    margin: 0;
    font-size: 1rem;
    font-weight: 700;
}

/* Nav */
.main-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    font-size: 0.9rem;
}

.main-nav a {
    text-decoration: none;
    color: var(--muted);
    padding: 0.4rem 0.8rem;
    border-radius: 999px;
    border: 1px solid transparent;
}

.main-nav a:hover,
.main-nav a:focus {
    color: var(--primary);
    border-color: var(--primary-soft);
    background: #eff6ff;
}

/* Hero */
.hero {
    padding: 2.5rem 0 2rem;
}

.hero-inner {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(0, 1.4fr);
    gap: 2rem;
    align-items: stretch;
}

.hero-text h2 {
    font-size: 2rem;
    margin-top: 0;
    margin-bottom: 0.75rem;
}

.hero-text p {
    font-size: 1rem;
    color: var(--muted);
}

.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    padding: 0;
    list-style: none;
    margin-top: 1.25rem;
}

.hero-tags li {
    padding: 0.4rem 0.9rem;
    border-radius: 999px;
    background: var(--primary-soft);
    font-size: 0.85rem;
}

.hero-box {
    background: var(--bg-alt);
    border-radius: var(--radius-lg);
    padding: 1.5rem 1.5rem 1.25rem;
    box-shadow: var(--shadow-soft);
    border: 1px solid var(--border);
}

.hero-box h3 {
    margin-top: 0;
}

.hero-note {
    margin-top: 1rem;
    padding: 0.8rem 1rem;
    border-radius: 0.9rem;
    background: #ecfdf3;
    font-size: 0.9rem;
}

/* Genel section stilleri */
.section {
    padding: 2.5rem 0;
}

.section-alt {
    background: var(--bg-alt);
}

.section h2 {
    font-size: 1.5rem;
    margin-top: 0;
    margin-bottom: 0.75rem;
}

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

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.25rem;
    margin-top: 1.5rem;
}

.card {
    background: var(--bg-alt);
    border-radius: 1rem;
    padding: 1.15rem 1.1rem;
    border: 1px solid var(--border);
}

.card h3 {
    margin-top: 0;
    font-size: 1rem;
}

/* Hedef kitle */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: 1rem;
    margin: 1.25rem 0 1.5rem;
}

.stat-card {
    background: var(--primary-soft);
    border-radius: 0.9rem;
    padding: 0.9rem 1rem;
}

.stat-label {
    margin: 0 0 0.2rem;
    font-size: 0.85rem;
    color: var(--muted);
}

.stat-number {
    margin: 0;
    font-size: 1.3rem;
    font-weight: 700;
}

.target-list {
    padding-left: 1.2rem;
    color: var(--muted);
}

/* Hizmetler */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.25rem;
    margin-top: 1.25rem;
}

.service-card {
    background: var(--bg-alt);
    border-radius: 1rem;
    padding: 1.1rem 1.1rem;
    border: 1px solid var(--border);
}

.service-card h3 {
    margin-top: 0;
    font-size: 1rem;
}

/* Galeri */
.gallery {
    margin-top: 1.5rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 0.75rem;
}

.gallery-item {
    border-radius: 0.75rem;
    overflow: hidden;
    border: 1px solid var(--border);
    background: #000;
}

.gallery-item img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    transition: transform 0.25s ease;

    cursor: pointer;}



.small-text {
    font-size: 0.85rem;
    color: var(--muted);
    margin-top: 0.8rem;
}

/* İletişim */
.contact {
    display: grid;
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1.5fr);
    gap: 2rem;
    align-items: flex-start;
}

.contact-list {
    list-style: none;
    padding: 0;
    margin: 1rem 0 0.5rem;
    color: var(--muted);
}

.contact-list li + li {
    margin-top: 0.2rem;
}

.contact-form {
    background: var(--bg-alt);
    border-radius: var(--radius-lg);
    padding: 1.25rem 1.3rem;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-soft);
}

.form-group {
    margin-bottom: 0.85rem;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    border-radius: 0.6rem;
    border: 1px solid var(--border);
    padding: 0.55rem 0.7rem;
    font-size: 0.9rem;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: 2px solid var(--primary-soft);
    border-color: var(--primary);
}

.btn-primary {
    width: 100%;
    padding: 0.65rem 1rem;
    border-radius: 999px;
    border: none;
    font-size: 0.9rem;
    cursor: pointer;
    background: var(--primary);
    color: #ffffff;
    font-weight: 500;
    transition: background 0.15s ease, transform 0.08s ease, box-shadow 0.15s ease;
    box-shadow: 0 8px 18px rgba(37, 99, 235, 0.35);
}
.btn-primary:hover {
    background: #1d4ed8;
    transform: translateY(-1px);
    box-shadow: 0 10px 22px rgba(37, 99, 235, 0.4);
}
.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 4px 10px rgba(37, 99, 235, 0.35);
}


/* Footer */
.site-footer {
    border-top: 1px solid var(--border);
    background: #0f172a;
    color: #e5e7eb;
    margin-top: 2rem;
}

.footer-inner {
    padding: 1.25rem 1.25rem 1.4rem;
    text-align: center;
}

.footer-inner p {
    margin: 0.15rem 0;
}

.footer-inner .small-text {
    color: #9ca3af;
}

/* Responsive */
@media (max-width: 900px) {
    .hero-inner {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .header-inner {
        flex-direction: column;
        align-items: flex-start;
    }

    .main-nav {
        justify-content: flex-start;
    }

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

@media (max-width: 480px) {
    .hero-text h2 {
        font-size: 1.6rem;
    }

    .site-title {
        font-size: 0.95rem;
    }
}


/* Lightbox (büyük fotoğraf görünümü) */
.lightbox {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.lightbox-inner {
    position: relative;
    max-width: 960px;
    width: 100%;
    max-height: 90vh;
    background: #0b1120;
    border-radius: 1rem;
    padding: 0.75rem 0.75rem 0.9rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.lightbox img {
    width: 100%;
    max-height: 70vh;
    object-fit: contain;
    border-radius: 0.75rem;
    background: #000;
}

.lightbox-caption {
    color: #e5e7eb;
    font-size: 0.9rem;
}

.lightbox-close {
    position: absolute;
    top: 0.3rem;
    right: 0.5rem;
    border: none;
    background: rgba(15, 23, 42, 0.9);
    color: #e5e7eb;
    font-size: 1.2rem;
    width: 2rem;
    height: 2rem;
    border-radius: 999px;
    cursor: pointer;
}