/* =============================================
   SyncInvent — Herkese açık sayfalar için ortak stil
   =============================================
   fiyatlandirma.html, abone-ol.html, abonelik-sonuc.html tarafından
   kullanılır. Tasarım tokenları landing.html ve client/style.css ile
   birebir aynıdır.
*/

:root {
    --brand-50:#f0f9ff; --brand-100:#e0f2fe; --brand-200:#bae6fd;
    --brand-300:#7dd3fc; --brand-400:#38bdf8; --brand-500:#0ea5e9;
    --brand-600:#0284c7; --brand-700:#0369a1; --brand-800:#075985; --brand-900:#0c4a6e;
    --accent-500:#6366f1; --accent-600:#4f46e5;
    --n-0:#ffffff; --n-25:#fcfcfd; --n-50:#f8fafc; --n-100:#f1f5f9;
    --n-150:#e8edf3; --n-200:#e2e8f0; --n-300:#cbd5e1; --n-400:#94a3b8;
    --n-500:#64748b; --n-600:#475569; --n-700:#334155; --n-800:#1e293b;
    --n-900:#0f172a; --n-950:#020617;
    --success-500:#22c55e; --warning-500:#f59e0b; --danger-500:#ef4444;
    --radius-sm:6px; --radius:10px; --radius-lg:14px; --radius-xl:20px;
    --shadow-sm:0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);
    --shadow:0 4px 6px -1px rgba(0,0,0,.07), 0 2px 4px -2px rgba(0,0,0,.05);
    --shadow-md:0 10px 15px -3px rgba(0,0,0,.08), 0 4px 6px -4px rgba(0,0,0,.04);
    --shadow-lg:0 20px 25px -5px rgba(0,0,0,.1), 0 8px 10px -6px rgba(0,0,0,.04);
    --ease:cubic-bezier(.4,0,.2,1);
    --font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',system-ui,sans-serif;
}

*,*::before,*::after { box-sizing:border-box; margin:0; padding:0 }
html { scroll-behavior:smooth; -webkit-text-size-adjust:100% }
body {
    font-family:var(--font);
    color:var(--n-900);
    background:var(--n-0);
    line-height:1.6;
    -webkit-font-smoothing:antialiased;
}
a { color:var(--brand-600); text-decoration:none }
a:hover { text-decoration:underline }

.container { width:100%; max-width:1120px; margin:0 auto; padding:0 16px }

/* ── Üst çubuk ── */
.nav {
    position:sticky; top:0; z-index:50;
    background:rgba(255,255,255,.88);
    backdrop-filter:blur(12px);
    border-bottom:1px solid var(--n-150);
}
.nav-inner { display:flex; align-items:center; gap:16px; height:64px }
.brand { display:inline-flex; align-items:center; gap:10px; font-weight:800; font-size:1.05rem; color:var(--n-900) }
.brand:hover { text-decoration:none }
.brand-mark {
    width:34px; height:34px; border-radius:9px;
    background:linear-gradient(135deg,var(--brand-500),var(--accent-600));
    display:grid; place-items:center;
}
.nav-links { display:flex; gap:20px; margin-left:auto }
.nav-links a { color:var(--n-600); font-size:.9rem; font-weight:500 }
.nav-links a:hover { color:var(--brand-600); text-decoration:none }

/* ── Düğmeler ── */
.btn {
    display:inline-flex; align-items:center; justify-content:center; gap:8px;
    padding:11px 20px; border-radius:var(--radius);
    font-family:var(--font); font-size:.92rem; font-weight:600;
    border:1px solid transparent; cursor:pointer;
    transition:all .18s var(--ease);
    text-decoration:none; white-space:nowrap;
}
.btn:hover { text-decoration:none }
.btn:disabled { opacity:.55; cursor:not-allowed }
.btn-primary { background:var(--brand-600); color:#fff }
.btn-primary:hover:not(:disabled) { background:var(--brand-700) }
.btn-outline { background:#fff; color:var(--n-800); border-color:var(--n-300) }
.btn-outline:hover:not(:disabled) { border-color:var(--brand-400); color:var(--brand-700) }
.btn-danger { background:#fff; color:var(--danger-500); border-color:#fecaca }
.btn-danger:hover:not(:disabled) { background:#fef2f2; border-color:var(--danger-500) }
.btn-lg { padding:14px 26px; font-size:1rem }
.btn-block { width:100% }

/* ── Sayfa başlığı ── */
.page-head { padding:56px 0 28px; text-align:center }
.page-head h1 { font-size:clamp(1.7rem,4vw,2.5rem); font-weight:800; letter-spacing:-.02em; line-height:1.2 }
.page-head p { color:var(--n-500); margin-top:12px; font-size:1.02rem; max-width:620px; margin-inline:auto }

/* ── Kart ── */
.card {
    background:#fff; border:1px solid var(--n-200);
    border-radius:var(--radius-lg); box-shadow:var(--shadow-sm);
}
.card-pad { padding:24px }

/* ── Periyot seçici ── */
.period-toggle {
    display:inline-flex; background:var(--n-100); padding:4px;
    border-radius:999px; margin:24px auto 0; gap:4px;
}
.period-toggle button {
    border:none; background:transparent; cursor:pointer;
    font-family:var(--font); font-size:.88rem; font-weight:600; color:var(--n-500);
    padding:9px 20px; border-radius:999px; transition:all .18s var(--ease);
}
.period-toggle button.active { background:#fff; color:var(--n-900); box-shadow:var(--shadow-sm) }
.save-badge {
    display:inline-block; margin-left:6px; font-size:.7rem; font-weight:700;
    background:#dcfce7; color:#15803d; padding:2px 7px; border-radius:999px;
}

/* ── Fiyat ızgarası ── */
.plan-grid {
    display:grid; gap:20px; margin:36px 0 8px;
    grid-template-columns:repeat(auto-fit,minmax(272px,1fr));
    align-items:start;
}
.plan {
    background:#fff; border:1px solid var(--n-200); border-radius:var(--radius-lg);
    padding:26px 24px; display:flex; flex-direction:column; gap:14px;
    transition:border-color .18s var(--ease), box-shadow .18s var(--ease);
}
.plan:hover { border-color:var(--brand-300); box-shadow:var(--shadow-md) }
.plan.featured { border-color:var(--brand-500); box-shadow:var(--shadow-md); position:relative }
.plan-badge {
    position:absolute; top:-11px; left:24px;
    background:var(--brand-600); color:#fff;
    font-size:.68rem; font-weight:700; letter-spacing:.04em; text-transform:uppercase;
    padding:4px 11px; border-radius:999px;
}
.plan-name { font-size:1.15rem; font-weight:700 }
.plan-tagline { color:var(--n-500); font-size:.86rem; margin-top:-8px }
.plan-price { display:flex; align-items:baseline; gap:6px; flex-wrap:wrap }
.plan-price .amount { font-size:2.1rem; font-weight:800; letter-spacing:-.02em }
.plan-price .per { color:var(--n-500); font-size:.88rem }
.plan-vat { color:var(--n-400); font-size:.78rem; margin-top:-10px }
.plan-feats { list-style:none; display:flex; flex-direction:column; gap:9px; margin-top:4px }
.plan-feats li { font-size:.88rem; color:var(--n-700); display:flex; gap:9px; align-items:flex-start }
.plan-feats .tick { color:var(--success-500); flex:0 0 auto; font-weight:700 }

/* ── Form ── */
.form-grid { display:grid; gap:16px; grid-template-columns:repeat(auto-fit,minmax(220px,1fr)) }
.field { display:flex; flex-direction:column; gap:6px }
.field.full { grid-column:1/-1 }
.field label { font-size:.84rem; font-weight:600; color:var(--n-700) }
.field .hint { font-size:.76rem; color:var(--n-500); font-weight:400 }
.field input, .field select, .field textarea {
    font-family:var(--font); font-size:.93rem; color:var(--n-900);
    padding:11px 13px; border:1px solid var(--n-300);
    border-radius:var(--radius); background:#fff;
    transition:border-color .16s var(--ease), box-shadow .16s var(--ease);
    width:100%;
}
.field input:focus, .field select:focus, .field textarea:focus {
    outline:none; border-color:var(--brand-500);
    box-shadow:0 0 0 3px rgba(14,165,233,.14);
}
.field input[aria-invalid="true"] { border-color:var(--danger-500) }
.field textarea { resize:vertical; min-height:78px }

.check { display:flex; gap:11px; align-items:flex-start; font-size:.85rem; color:var(--n-700); line-height:1.6 }
.check input { margin-top:3px; width:16px; height:16px; flex:0 0 auto; accent-color:var(--brand-600) }

.alert {
    padding:13px 15px; border-radius:var(--radius);
    font-size:.88rem; line-height:1.6; margin:16px 0;
    display:flex; gap:10px; align-items:flex-start;
}
.alert-error   { background:#fef2f2; border:1px solid #fecaca; color:#991b1b }
.alert-info    { background:var(--brand-50); border:1px solid var(--brand-200); color:var(--brand-800) }
.alert-warn    { background:#fffbeb; border:1px solid #fde68a; color:#92400e }
.alert-success { background:#f0fdf4; border:1px solid #bbf7d0; color:#15803d }

/* ── Satıcı bilgi tablosu ── */
.seller-table { width:100%; border-collapse:collapse; font-size:.86rem; margin-top:8px }
.seller-table th, .seller-table td {
    text-align:left; padding:9px 12px; border:1px solid var(--n-200); vertical-align:top;
}
.seller-table th { background:var(--n-50); color:var(--n-600); font-weight:600; width:38%; white-space:nowrap }

/* ── Alt bilgi ── */
footer.site-foot {
    margin-top:64px; padding:36px 0 44px;
    border-top:1px solid var(--n-150); background:var(--n-25);
}
footer.site-foot .cols { display:grid; gap:28px; grid-template-columns:repeat(auto-fit,minmax(210px,1fr)) }
footer.site-foot h4 { font-size:.82rem; text-transform:uppercase; letter-spacing:.05em; color:var(--n-500); margin-bottom:11px }
footer.site-foot a, footer.site-foot p { display:block; color:var(--n-600); font-size:.86rem; margin-bottom:7px }
footer.site-foot .legal-note { margin-top:26px; padding-top:20px; border-top:1px solid var(--n-150); color:var(--n-500); font-size:.78rem; line-height:1.7 }
.pay-logos { display:flex; gap:10px; align-items:center; flex-wrap:wrap; margin-top:10px }
.pay-logos img { height:26px; width:auto }

/* ── Yükleniyor ── */
.spinner {
    width:16px; height:16px; border:2px solid rgba(255,255,255,.4);
    border-top-color:#fff; border-radius:50%;
    animation:spin .7s linear infinite; display:inline-block;
}
@keyframes spin { to { transform:rotate(360deg) } }

.sr-only {
    position:absolute; width:1px; height:1px; padding:0; margin:-1px;
    overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0;
}

@media (max-width:640px) {
    .nav-links { display:none }
    .page-head { padding:36px 0 20px }
    .card-pad { padding:18px }
}