/* ================================
   GENEL DEĞİŞKENLER VE RESET
   ================================ */

:root {
    --bg-body: #f3f4f6;
    --bg-alt: #ffffff;
    --bg-alt-soft: #f8fafc;
    --color-text: #111827;
    --color-muted: #4b5563;
    --color-border: #e5e7eb;
    --primary: #b91c1c;      /* koyu kırmızı */
    --primary-soft: #fee2e2;
    --primary-dark: #7f1d1d;
    --shadow-soft: 0 18px 45px rgba(15, 23, 42, 0.16);
    --radius-lg: 16px;
    --radius-xl: 20px;
    --transition-fast: 0.2s ease;
}

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

html, body {
    height: 100%;
}

body {
    user-select: none;
    -webkit-user-select: none;
    -ms-user-select: none;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background-color: var(--bg-body);
    color: var(--color-text);
    line-height: 1.6;
}

/* KULLANILAN GENEL YAPI */

.container {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: 4rem 0;
}

.section-alt {
    padding: 4rem 0;
    background: var(--bg-alt-soft);
}

.section-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.section-header h2 {
    font-size: 1.9rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

.section-header p {
    color: var(--color-muted);
    max-width: 640px;
    margin: 0.25rem auto 0;
}

/* ================================
   HEADER & NAV
   ================================ */

.site-header {
    background: #ffffff;
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 6px 18px rgba(15, 23, 42, 0.06);
    position: sticky;
    top: 0;
    z-index: 50;
}

.header-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.85rem 1.5rem;
    max-width: 1180px;
    margin: 0 auto;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 0.9rem;
}

.logo-img {
    width: 44px;
    height: 44px;
    border-radius: 999px;
    object-fit: cover;
    box-shadow: 0 0 0 2px rgba(248, 250, 252, 0.9);
}

.logo-circle {
    width: 44px;
    height: 44px;
    border-radius: 999px;
    background: radial-gradient(circle at 30% 20%, #ef4444, #7f1d1d);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #f9fafb;
    font-weight: 800;
    font-size: 0.9rem;
    letter-spacing: 0.08em;
}

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

.logo-title {
    font-weight: 700;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
}

.logo-subtitle {
    font-size: 0.75rem;
    color: var(--color-muted);
}

.header-meta {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.8rem;
}

.meta-link {
    text-decoration: none;
    color: var(--color-muted);
    padding: 0.15rem 0.4rem;
    border-radius: 999px;
    transition: background var(--transition-fast), color var(--transition-fast);
}

.meta-link:hover {
    background: var(--primary-soft);
    color: var(--primary-dark);
}

.meta-separator {
    color: #9ca3af;
}

/* NAV MENÜ */

.main-nav {
    border-top: 1px solid var(--color-border);
    background: #ffffff;
}

.main-nav ul {
    list-style: none;
    max-width: 1180px;
    margin: 0 auto;
    padding: 0.35rem 1.5rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem 1.5rem;
}

.main-nav a {
    text-decoration: none;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: #374151;
    padding: 0.35rem 0;
    position: relative;
}

.main-nav a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -0.4rem;
    width: 0;
    height: 2px;
    background: linear-gradient(to right, #b91c1c, #dc2626);
    transition: width var(--transition-fast);
}

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

/* ================================
   HERO
   ================================ */

.hero {
    padding: 3.5rem 0 3.8rem;
    background: radial-gradient(circle at top left, #fee2e2, #f9fafb 55%);
    border-bottom: 1px solid var(--color-border);
}

.hero-inner {
    display: grid;
    grid-template-columns: minmax(0, 1.8fr) minmax(0, 1.2fr);
    gap: 2.5rem;
    align-items: center;
}

.hero-content h1 {
    font-size: 2.1rem;
    line-height: 1.25;
    margin-bottom: 0.9rem;
}

.hero-content p {
    color: var(--color-muted);
    max-width: 540px;
    margin-bottom: 1.4rem;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.28rem 0.8rem;
    border-radius: 999px;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    background: rgba(248, 250, 252, 0.92);
    border: 1px solid rgba(248, 113, 113, 0.6);
    color: var(--primary-dark);
    margin-bottom: 0.9rem;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

/* HERO YAN PANEL */

.hero-panel {
    background: rgba(255, 255, 255, 0.9);
    border-radius: var(--radius-xl);
    padding: 1.6rem 1.5rem;
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(0, 0, 0, 0.12);
    backdrop-filter: blur(14px);
}

.hero-panel h2 {
    font-size: 1.1rem;
    margin-bottom: 0.7rem;
}

.hero-panel ul {
    list-style: none;
    font-size: 0.9rem;
    color: var(--color-muted);
}

.hero-panel li + li {
    margin-top: 0.4rem;
}

/* ================================
   HERO VIDEO BACKGROUND
   ================================ */

.hero-with-video {
    position: relative;
    overflow: hidden;
    height: 75vh;   /* MIT'nin ölçüsüne en yakın (tam ekran olmadan büyük) */
    min-height: 720px; /* Masaüstü için cebri minimum */
    max-height: 900px; /* MIT'nin maksimum hero yüksekliği */

}

.hero-video-container {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-video-container video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1); /* %120 büyüttüm */
    filter: grayscale(0) brightness(1);
}

/* İçeriğin üstte kalması için */
.hero-overlay {
    position: relative;
    z-index: 1;
    padding: 3.5rem 0 3.8rem;
    background: none
    );
}

.hero-with-video .hero-content h1 {
    color: #f9fafb;
}

.hero-with-video .hero-content p {
    color: #e5e7eb;
}

.hero-with-video .hero-badge {
    background: rgba(248, 250, 252, 0.06);
    border-color: rgba(248, 250, 252, 0.5);
    color: #fee2e2;
}

.hero-with-video .hero-panel {
    background: rgba(15, 23, 42, 0.88);
    border-color: rgba(248, 250, 252, 0.08);
    color: #e5e7eb;
}
.hero-with-video .hero-panel h2 {
    color: #f9fafb;
}
.hero-with-video .hero-panel ul {
    color: #e5e7eb;
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem; /* KUTULAR ARASI BOŞLUK */
}

/* ================================
   BUTONLAR
   ================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.55rem 1.2rem;
    border-radius: 999px;
    border: 1px solid transparent;
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}

.btn-primary {
    background: linear-gradient(to right, #000000, #000000);
    color: #ffffff;
    box-shadow: 0 12px 30px rgba(255, 255, 255, 0.35);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.45);
}

.btn-outline {
    background: #000000;
    color: #ffffff;
    border-color: #000000;
}

.btn-outline:hover {
    background: #fee2e2;
}

/* Link tarzı buton */
.btn-link {
    display: inline-flex;
    font-size: 0.9rem;
    color: var(--primary-dark);
    text-decoration: none;
    font-weight: 500;
}

.btn-link:hover {
    text-decoration: underline;
}

/* ================================
   KARTLAR & GRID
   ================================ */

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.5rem;
}

.info-card,
.news-card {
    background: var(--bg-alt);
    border-radius: var(--radius-lg);
    padding: 1.3rem 1.25rem;
    border: 1px solid rgba(148, 163, 184, 0.25);
    box-shadow: 0 12px 30px rgba(15, 23, 42, 0.06);
}

.info-card h3,
.news-card h3 {
    font-size: 1.05rem;
    margin-bottom: 0.4rem;
}

.info-card p,
.news-card p {
    font-size: 0.92rem;
    color: var(--color-muted);
    margin-bottom: 0.6rem;
}

.card-link {
    font-size: 0.86rem;
    color: var(--primary-dark);
    text-decoration: none;
    font-weight: 500;
}

.card-link:hover {
    text-decoration: underline;
}

.bullet-list {
    list-style: disc;
    padding-left: 1.1rem;
    margin: 0.4rem 0 0.8rem;
    color: var(--color-muted);
    font-size: 0.92rem;
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin: 0.4rem 0 0.7rem;
}

.tag-list li {
    list-style: none;
    padding: 0.18rem 0.6rem;
    font-size: 0.78rem;
    border-radius: 999px;
    background: #fee2e2;
    color: #7f1d1d;
}

/* DUYURU TARİHLERİ */

.news-date {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: #9ca3af;
    display: inline-block;
    margin-bottom: 0.4rem;
}

/* ================================
   ZAMAN ÇİZELGESİ
   ================================ */

.timeline {
    border-left: 2px solid rgba(148, 163, 184, 0.6);
    margin-left: 0.7rem;
    padding-left: 1.5rem;
    display: grid;
    gap: 1.4rem;
}

.timeline-item {
    position: relative;
}

.timeline-item::before {
    content: "";
    position: absolute;
    left: -1.55rem;
    top: 0.25rem;
    width: 11px;
    height: 11px;
    border-radius: 999px;
    background: #ffffff;
    border: 2px solid #ef4444;
    box-shadow: 0 0 0 4px rgba(248, 113, 113, 0.2);
}

.timeline-year {
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: #111827;
}

.timeline-content {
    color: var(--color-muted);
    font-size: 0.92rem;
}

/* ================================
   SSS
   ================================ */

.faq-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.3rem;
}

.faq-item {
    background: #ffffff;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(148, 163, 184, 0.25);
    padding: 1.1rem 1.15rem;
}

.faq-item h3 {
    font-size: 0.98rem;
    margin-bottom: 0.35rem;
}

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

/* ================================
   FOOTER
   ================================ */

.site-footer {
    background: #020617;
    color: #e5e7eb;
    margin-top: 3rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.1fr 1.1fr 1.5fr;
    gap: 1.8rem;
    padding: 2.6rem 1.5rem 2rem;
}

.footer-col h4 {
    font-size: 0.95rem;
    margin-bottom: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    color: #e5e7eb;
}

.footer-col ul {
    list-style: none;
    font-size: 0.88rem;
}

.footer-col li + li {
    margin-top: 0.25rem;
}

.footer-col a {
    color: #9ca3af;
    text-decoration: none;
}

.footer-col a:hover {
    color: #e5e7eb;
}

.footer-col p {
    font-size: 0.86rem;
    color: #9ca3af;
}

.footer-bottom {
    border-top: 1px solid rgba(55, 65, 81, 0.8);
    padding: 0.75rem 0;
}

.footer-bottom-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.8rem;
    color: #9ca3af;
}

/* ================================
   RESPONSIVE
   ================================ */

@media (max-width: 960px) {
    .hero-inner {
        grid-template-columns: minmax(0, 1fr);
    }

    .hero-panel {
        margin-top: 0.5rem;
    }

    .grid-3 {
        grid-template-columns: minmax(0, 1fr);
    }

    .faq-grid {
        grid-template-columns: minmax(0, 1fr);
    }

    .footer-grid {
        grid-template-columns: minmax(0, 1fr);
    }
}

@media (max-width: 640px) {
    .header-top {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.4rem;
    }

    .main-nav ul {
        padding-inline: 1rem;
        gap: 0.2rem 1rem;
    }

    .hero {
        padding: 2.6rem 0 3rem;
    }

    .hero-content h1 {
        font-size: 1.6rem;
    }
}