/* Basit ve modern stiller */
:root {
    --bg: #f4f8fc;            /* açık mavi ton arka plan */
    --text: #0a2540;          /* lacivert gövde metni */
    --muted: #395b78;         /* ikincil metin */
    --border: #c9d7e6;        /* sınır çizgileri */
    --card: #ffffff;          /* kart arka planı */
    --brand: #0b5a8e;         /* logo mavi tonu */
    --brand-weak: #e7f2fb;    /* açık marka arka planı */
    --shadow: 0 1px 2px rgba(11, 37, 64, .06);
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0b1422;
        --text: #e2eef9;
        --muted: #8aa7c4;
        --border: #1c3550;
        --card: #0f2136;
        --brand: #7eb3e0;
        --brand-weak: #0f2136;
        --shadow: none;
    }
}

html, body {
    background: var(--bg);
    color: var(--text);
}

.container {
    width: min(1100px, 92%);
    margin: 0 auto;
}

.site-header {
    border-bottom: 1px solid var(--border);
    background: #ffffff;
    backdrop-filter: saturate(150%) blur(4px);
    position: sticky;
    top: 0;
    z-index: 20;
}

.logo {
    height: 64px;
    display: flex;
    align-items: center;
    font-weight: 700;
    letter-spacing: .5px;
}

/* img tabanlı logo kullanılıyor; metinli yedek kaldırıldı */

.hero {
    padding: 64px 0 32px;
    text-align: center;
}

.hero h1 {
    font-size: clamp(28px, 3.5vw, 40px);
    margin: 0 0 8px;
}

.hero p {
    margin: 0;
    color: var(--muted);
}

.hero-notice {
    max-width: 800px;
    margin: 32px auto 0;
    padding: 24px;
    background: #fef3c7;
    border: 2px solid #fbbf24;
    border-radius: 12px;
    text-align: left;
}

.hero-notice h2 {
    font-size: 20px;
    margin: 0 0 16px 0;
    color: #92400e;
    font-weight: 700;
}

.hero-notice p {
    margin: 0 0 12px 0;
    color: #78350f;
    line-height: 1.6;
}

.hero-notice p:last-child {
    margin-bottom: 0;
}

.brands {
    padding: 24px 0 56px;
}

.brands h2 {
    font-size: 22px;
    margin: 0 0 16px;
}

.brand-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
}

.brand-card {
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px;
    background: var(--card);
    box-shadow: var(--shadow);
}

.brand-logo {
    height: 80px;
    border: 1px dashed color-mix(in oklab, var(--border) 85%, var(--brand));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: color-mix(in oklab, var(--brand) 70%, var(--text));
    margin-bottom: 10px;
    background: #fff;
}

.btn-site {
    display: inline-block;
    padding: 10px 24px;
    background: #0a2540;
    color: #ffffff;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    text-align: center;
    transition: background-color 0.2s ease, transform 0.1s ease;
    margin-top: 8px;
    width: 100%;
    box-sizing: border-box;
}

.btn-site:hover {
    background: #0d3157;
    transform: translateY(-1px);
}

.btn-site:active {
    transform: translateY(0);
    background: #0b2a4b;
}

.social-section {
    padding: 32px 0 48px;
    text-align: center;
}

.social-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.social-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 24px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    color: #ffffff;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    border: 2px solid transparent;
}

.social-btn svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.social-btn.instagram {
    background: linear-gradient(135deg, #833ab4 0%, #fd1d1d 50%, #fcb045 100%);
}

.social-btn.instagram:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(131, 58, 180, 0.3);
    border-color: rgba(255, 255, 255, 0.3);
}

.social-btn.facebook {
    background: #1877f2;
}

.social-btn.facebook:hover {
    background: #166fe5;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(24, 119, 242, 0.3);
    border-color: rgba(255, 255, 255, 0.3);
}

.social-btn.whatsapp {
    background: #25d366;
}

.social-btn.whatsapp:hover {
    background: #22c55e;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.3);
    border-color: rgba(255, 255, 255, 0.3);
}

.social-btn:active {
    transform: translateY(0);
}

.notice {
    background: var(--brand-weak);
    border-top: 1px solid color-mix(in oklab, var(--brand) 40%, var(--border));
    border-bottom: 1px solid color-mix(in oklab, var(--brand) 40%, var(--border));
}

@media (prefers-color-scheme: dark) {
    .notice { background: var(--brand-weak); }
}

.notice p {
    margin: 0;
    padding: 16px 0;
    color: var(--brand);
}

@media (prefers-color-scheme: dark) { .notice p { color: var(--brand); } }

.site-footer {
    padding: 24px 0;
    border-top: 1px solid var(--border);
    color: var(--muted);
    text-align: center;
}