/*
 * "Işık masası" (light table) teması: rich-media reklam kreatiflerinin
 * gerçek renkleriyle değerlendirildiği bir prova/onay masası hissi verir —
 * koyu arayüzler ekrandaki reklam renklerini yanıltır, ajanslar kreatifleri
 * genelde nötr/açık bir zeminde kontrol eder. UP Partner logosu da koyu
 * mürekkep tonunda ve açık zemin için tasarlanmış; tema bunu tersine
 * çevirmek yerine olduğu gibi kullanır.
 */
:root {
    --paper: #f5f1e8;
    --paper-alt: #ece5d3;
    --surface: #fffdf8;
    --surface-2: #efe9db;
    --ink: #1d1a15;
    --ink-muted: #756c5a;
    --line: #ddd3ba;
    --line-strong: #c7bb9c;
    --accent: #d9531e;
    --accent-hover: #b8451a;
    --accent-ink: #fff8f2;
    --success: #2f7a4d;
    --success-bg: #e3efe4;
    --danger: #b23a2e;
    --danger-bg: #f6e6e1;
    --warning: #a2660a;
    --warning-bg: #f3e8d2;
    --radius: 8px;
    --font: "Avenir Next", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
    font-family: var(--font);
    background: var(--paper);
    color: var(--ink);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

.container { max-width: 1180px; margin: 0 auto; padding: 0 24px; }

a { color: inherit; text-decoration: none; }

/* Header */
.site-header, .admin-header {
    border-bottom: 1px solid var(--line-strong);
    background: var(--paper-alt);
    position: sticky;
    top: 0;
    z-index: 10;
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: -0.01em;
}
.brand-mark { height: 30px; width: auto; display: block; }
.brand span {
    color: var(--ink-muted);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    border-left: 1px solid var(--line-strong);
    padding-left: 10px;
    margin-left: 2px;
}
.site-nav { display: flex; gap: 24px; align-items: center; }
.site-nav a { color: var(--ink-muted); font-size: 0.88rem; font-weight: 500; transition: color .15s; }
.site-nav a:hover { color: var(--accent); }

/* Hero */
.hero {
    position: relative;
    padding: 56px 0 36px;
    overflow: hidden;
    isolation: isolate;
    border-bottom: 1px solid var(--line);
}
.hero::before {
    content: "";
    position: absolute;
    inset: -15% -6% auto auto;
    width: 380px;
    height: 380px;
    background-image: url('/assets/img/favicon-mark.png');
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
    opacity: 0.05;
    z-index: -1;
    pointer-events: none;
}
.hero h1 {
    font-size: clamp(1.9rem, 3vw, 2.5rem);
    margin: 0 0 12px;
    letter-spacing: -0.02em;
    font-weight: 800;
    max-width: 20ch;
}
.hero p { color: var(--ink-muted); max-width: 52ch; margin: 0 0 22px; }

/* Spec strip: gerçek IAB kreatif formatlarını gösteren, prova-fişi
   görünümündeki bilgilendirici şerit — dekoratif değil, gerçek veriye dayanır. */
.spec-strip { display: flex; flex-wrap: wrap; gap: 8px; }
.spec-strip span {
    font-family: var(--font-mono);
    font-size: 0.74rem;
    color: var(--ink-muted);
    background: var(--surface);
    border: 1px dashed var(--line-strong);
    border-radius: 5px;
    padding: 4px 9px;
}

/* Filter bar */
.filter-bar { display: flex; gap: 12px; align-items: center; margin: 28px 0 20px; flex-wrap: wrap; }
.filter-bar select {
    background: var(--surface);
    color: var(--ink);
    border: 1px solid var(--line-strong);
    border-radius: 6px;
    padding: 8px 12px;
    font-size: 0.88rem;
}
.filter-bar select:focus { outline: none; border-color: var(--accent); }

/* Grid */
.creative-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 20px;
    margin: 24px 0 64px;
}
.creative-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-top: 3px solid transparent;
    border-radius: var(--radius);
    overflow: hidden;
    transition: transform .15s, border-color .15s, box-shadow .15s;
    display: block;
}
.creative-card:hover {
    transform: translateY(-3px);
    border-top-color: var(--accent);
    border-color: var(--line-strong);
    box-shadow: 0 14px 28px -18px rgba(29, 26, 21, 0.35);
}
.creative-thumb { position: relative; aspect-ratio: 16/10; background: var(--surface-2); overflow: hidden; }
.creative-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.thumb-placeholder {
    width: 100%; height: 100%;
    display: flex; align-items: center; justify-content: center;
    color: var(--ink-muted); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.05em;
    background:
        linear-gradient(45deg, var(--surface-2) 25%, transparent 25%),
        linear-gradient(-45deg, var(--surface-2) 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, var(--surface-2) 75%),
        linear-gradient(-45deg, transparent 75%, var(--surface-2) 75%);
    background-size: 16px 16px;
    background-position: 0 0, 0 8px, 8px -8px, -8px 0px;
    background-color: var(--surface);
}
.thumb-placeholder.small { aspect-ratio: auto; width: 44px; height: 44px; border-radius: 6px; font-size: 1rem; }

/* Ölçü fişi: her kreatifin gerçek en×boy bilgisini, bir prova damgası
   gibi kartın köşesine iliştirir. */
.dim-badge {
    position: absolute; top: 8px; left: 8px;
    background: var(--ink); color: var(--paper);
    font-family: var(--font-mono); font-size: 0.7rem; font-weight: 600;
    padding: 3px 8px; border-radius: 4px;
    letter-spacing: 0.01em;
}
.creative-info { padding: 14px 16px; }
.creative-info h3 { margin: 0 0 8px; font-size: 1rem; font-weight: 650; }
.creative-meta { display: flex; gap: 6px; flex-wrap: wrap; }

.badge {
    display: inline-block; font-size: 0.72rem; padding: 3px 9px; border-radius: 999px;
    background: var(--paper-alt);
    color: var(--ink);
    border: 1px solid var(--line-strong);
}
.badge-outline { background: transparent; border: 1px solid var(--line); color: var(--ink-muted); }

.empty-state { color: var(--ink-muted); padding: 48px 0; text-align: center; }

/* Detail page */
.creative-detail { padding: 32px 0 80px; }
.back-link { color: var(--ink-muted); font-size: 0.9rem; display: inline-block; margin-bottom: 20px; }
.back-link:hover { color: var(--accent); }
.detail-layout { display: grid; grid-template-columns: 1fr 320px; gap: 32px; align-items: start; }
.preview-pane {
    background:
        linear-gradient(45deg, var(--surface-2) 25%, transparent 25%),
        linear-gradient(-45deg, var(--surface-2) 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, var(--surface-2) 75%),
        linear-gradient(-45deg, transparent 75%, var(--surface-2) 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
    background-color: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: auto;
    min-height: 300px;
}
.preview-frame-wrap iframe { border: 0; display: block; max-width: 100%; background: #fff; box-shadow: 0 8px 30px rgba(29, 26, 21, 0.18); }
.detail-info h1 { font-size: 1.4rem; margin: 0 0 4px; font-weight: 750; }
.client-name { color: var(--ink-muted); margin: 0 0 12px; }
.spec-list { margin: 16px 0; }
.spec-list dt { color: var(--ink-muted); font-size: 0.76rem; text-transform: uppercase; letter-spacing: 0.05em; margin-top: 10px; }
.spec-list dd { margin: 2px 0 0; font-family: var(--font-mono); font-size: 0.92rem; }
.description { color: var(--ink-muted); margin-top: 16px; white-space: pre-line; }

@media (max-width: 860px) {
    .detail-layout { grid-template-columns: 1fr; }
}

/* Notices */
.notice { padding: 12px 16px; border-radius: 8px; margin-bottom: 20px; font-size: 0.9rem; border: 1px solid transparent; }
.notice-error { background: var(--danger-bg); border-color: rgba(178, 58, 46, 0.35); color: #8a2c22; }
.notice-success { background: var(--success-bg); border-color: rgba(47, 122, 77, 0.3); color: #245e3c; }
.notice-warning { background: var(--warning-bg); border-color: rgba(162, 102, 10, 0.3); color: #7f5308; }

/* Buttons */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 9px 16px; border-radius: 7px; border: 1px solid transparent;
    font-size: 0.88rem; font-weight: 600; cursor: pointer; transition: all .15s;
}
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { background: var(--accent-hover); }
.btn-ghost { background: var(--surface); border-color: var(--line-strong); color: var(--ink); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn-danger { background: transparent; border-color: rgba(178, 58, 46, 0.35); color: var(--danger); }
.btn-danger:hover { background: var(--danger-bg); }
.btn-small { padding: 5px 10px; font-size: 0.78rem; }
.inline-form { display: inline; }

/* Forms */
.stacked-form { display: flex; flex-direction: column; gap: 16px; max-width: 480px; }
.stacked-form label { display: flex; flex-direction: column; gap: 6px; font-size: 0.86rem; color: var(--ink-muted); font-weight: 500; }
.stacked-form input[type=text],
.stacked-form input[type=password],
.stacked-form input[type=number],
.stacked-form input[type=file],
.stacked-form select,
.stacked-form textarea {
    background: var(--surface);
    border: 1px solid var(--line-strong);
    border-radius: 6px;
    padding: 10px 12px;
    color: var(--ink);
    font-family: inherit;
    font-size: 0.92rem;
}
.stacked-form input:focus, .stacked-form select:focus, .stacked-form textarea:focus {
    outline: none; border-color: var(--accent);
}
.stacked-form textarea { resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.hint { color: var(--ink-muted); font-size: 0.76rem; }
.card-form { max-width: 560px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.card-form + .card-form,
.share-link-box + .card-form { margin-top: 20px; }

/* Paylaşım linki: yırtılabilir bir prova bileti gibi — kesikli çerçeve,
   damga rengi ikonu; "gizli ama paylaşılabilir" durumunu somutlaştırır. */
.share-link-box {
    max-width: 560px;
    margin-bottom: 0;
    padding: 20px 22px 22px;
    background: var(--surface);
    border: 1.5px dashed var(--line-strong);
    border-radius: var(--radius);
}
.share-link-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 4px;
}
.share-link-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 0.95rem;
}
.share-link-title .icon { font-size: 1rem; line-height: 1; }
.share-link-status {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--success);
    background: var(--success-bg);
    border: 1px solid rgba(47, 122, 77, 0.3);
    border-radius: 999px;
    padding: 3px 10px 3px 8px;
}
.share-link-status::before {
    content: "";
    width: 6px; height: 6px; border-radius: 50%;
    background: var(--success);
}
.share-link-box .hint { margin: 6px 0 14px; max-width: 46ch; }
.share-link-row { display: flex; gap: 8px; }
.share-link-input {
    flex: 1;
    min-width: 0;
    background: var(--paper);
    border: 1px solid var(--line-strong);
    border-radius: 6px;
    padding: 10px 12px;
    color: var(--ink);
    font-family: var(--font-mono);
    font-size: 0.8rem;
}
.share-link-input:focus { outline: none; border-color: var(--accent); }
.share-link-actions { display: flex; gap: 8px; margin-top: 12px; }
.current-thumb { margin-top: 8px; max-width: 160px; border-radius: 6px; border: 1px solid var(--line); }

/* Auth */
.auth-box { max-width: 380px; margin: 64px auto; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 32px; }
.auth-box h1 { font-size: 1.3rem; margin-top: 0; }
.muted { color: var(--ink-muted); font-size: 0.85rem; }

/* Admin */
.admin-main { padding-top: 32px; padding-bottom: 64px; }
.admin-toolbar { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; }
.count-badge { color: var(--ink-muted); font-weight: 400; font-size: 1rem; }
.admin-table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.admin-table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.admin-table th, .admin-table td { padding: 12px 14px; text-align: left; border-bottom: 1px solid var(--line); white-space: nowrap; }
.admin-table thead th { color: var(--ink-muted); font-weight: 600; font-size: 0.74rem; text-transform: uppercase; letter-spacing: 0.05em; background: var(--paper-alt); }
.admin-table tbody tr:last-child td { border-bottom: 0; }
.admin-table tbody tr:hover { background: var(--paper); }
.thumb-cell img { width: 44px; height: 44px; object-fit: cover; border-radius: 6px; }
.actions-cell { display: flex; gap: 6px; }
.status-pill { font-size: 0.72rem; font-weight: 600; padding: 3px 9px; border-radius: 999px; }
.status-active { background: var(--success-bg); color: var(--success); }
.status-hidden { background: var(--surface-2); color: var(--ink-muted); }

/* Footer */
.site-footer {
    border-top: 1px solid var(--line);
    background: var(--paper-alt);
    margin-top: 40px;
    padding: 20px 0;
    color: var(--ink-muted);
    font-size: 0.82rem;
}
.site-footer .container { display: flex; align-items: center; gap: 10px; }
.footer-mark { height: 16px; width: auto; opacity: 0.55; }

/* Upload dropzone state (JS toggled) */
label.dropzone-active { outline: 2px dashed var(--accent); outline-offset: 4px; border-radius: 8px; }