/* Kayıpsız - Clean B2B SaaS styles */
:root{
  --bg:#f8fafc;
  --panel:#ffffff;
  --ink:#0f172a;
  --ink-2:#334155;
  --muted:#64748b;
  --border:#e2e8f0;
  --border-strong:#cbd5e1;
  --brand:#0f172a;
  --accent:#2563eb;
  --accent-2:#1d4ed8;
  --danger:#dc2626;
  --success:#16a34a;
  --warn:#d97706;
  --radius:12px;
  --radius-sm:8px;
  --shadow:0 1px 2px rgba(15,23,42,.04), 0 1px 3px rgba(15,23,42,.06);
  --shadow-lg:0 10px 30px -12px rgba(15,23,42,.25);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"Inter","Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);color:var(--ink);font-size:15px;line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;display:block}

/* Layout */
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.container-narrow{max-width:640px;margin:0 auto;padding:0 20px}
.stack{display:flex;flex-direction:column;gap:16px}
.row{display:flex;gap:16px;flex-wrap:wrap}
.spread{display:flex;align-items:center;justify-content:space-between;gap:12px}

/* Top nav */
.nav{background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:20}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:60px;padding:0 20px;max-width:1200px;margin:0 auto}
.brand{font-weight:700;letter-spacing:-.02em;font-size:18px;color:var(--ink)}
.brand-dot{display:inline-block;width:10px;height:10px;background:var(--accent);border-radius:3px;margin-right:8px;transform:rotate(45deg)}
.nav-links{display:flex;gap:16px;align-items:center}
.nav-links a{color:var(--ink-2);font-weight:500;font-size:14px}
.nav-links a.active{color:var(--ink)}
@media (max-width:720px){.nav-links{gap:10px;font-size:13px}}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 16px;border-radius:var(--radius-sm);
  border:1px solid transparent;background:var(--brand);color:#fff;font-weight:600;font-size:14px;cursor:pointer;
  transition:transform .04s ease, box-shadow .18s ease, background .18s ease}
.btn:hover{background:#1e293b;text-decoration:none}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--accent)}
.btn-primary:hover{background:var(--accent-2)}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--border-strong)}
.btn-outline:hover{background:#f1f5f9}
.btn-ghost{background:transparent;color:var(--ink-2)}
.btn-ghost:hover{background:#f1f5f9;color:var(--ink)}
.btn-danger{background:var(--danger)}
.btn-danger:hover{background:#b91c1c}
.btn-lg{padding:14px 22px;font-size:15px}
.btn-block{width:100%}
.btn-sm{padding:6px 12px;font-size:13px}

/* Cards */
.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.card h1,.card h2,.card h3{margin-top:0}
.card-title{font-size:16px;font-weight:600;margin:0 0 4px}
.card-sub{color:var(--muted);font-size:13px;margin-bottom:16px}

/* Forms */
label{display:block;font-weight:500;font-size:13px;color:var(--ink-2);margin-bottom:6px}
input[type=text],input[type=email],input[type=password],input[type=number],input[type=url],input[type=tel],input[type=date],
input[type=datetime-local],select,textarea{
  width:100%;padding:10px 12px;border:1px solid var(--border-strong);border-radius:var(--radius-sm);
  background:#fff;font-size:14px;color:var(--ink);transition:border-color .15s ease, box-shadow .15s ease;font-family:inherit}
textarea{min-height:100px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(37,99,235,.15)}
.field{margin-bottom:14px}
.hint{color:var(--muted);font-size:12px;margin-top:4px}
.error-text{color:var(--danger);font-size:13px;margin-top:6px}

/* Flash */
.flash{padding:12px 16px;border-radius:var(--radius-sm);margin-bottom:16px;font-size:14px;border:1px solid}
.flash-success{background:#f0fdf4;border-color:#bbf7d0;color:#166534}
.flash-error{background:#fef2f2;border-color:#fecaca;color:#991b1b}
.flash-info{background:#eff6ff;border-color:#bfdbfe;color:#1e40af}
.flash-warn{background:#fffbeb;border-color:#fde68a;color:#92400e}

/* Sidebar layout (dashboard) */
.app-shell{display:grid;grid-template-columns:240px 1fr;min-height:calc(100vh - 60px)}
.sidebar{background:#fff;border-right:1px solid var(--border);padding:20px 12px}
.sidebar a{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:8px;color:var(--ink-2);font-weight:500;font-size:14px}
.sidebar a:hover{background:#f1f5f9;color:var(--ink);text-decoration:none}
.sidebar a.active{background:#0f172a;color:#fff}
.content{padding:28px 32px}
@media (max-width:860px){.app-shell{grid-template-columns:1fr}.sidebar{display:none}.content{padding:20px}}

/* Stats */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px}
.stat{background:#fff;border:1px solid var(--border);border-radius:12px;padding:18px}
.stat-label{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.08em}
.stat-value{font-size:26px;font-weight:700;margin-top:4px;letter-spacing:-.02em}
.stat-sub{font-size:12px;color:var(--muted);margin-top:4px}

/* Submissions */
.sub-list{display:flex;flex-direction:column;gap:10px}
.sub-item{background:#fff;border:1px solid var(--border);border-radius:12px;padding:16px;display:flex;justify-content:space-between;gap:12px;align-items:center}
.sub-item:hover{border-color:var(--border-strong)}
.sub-meta{color:var(--muted);font-size:13px}
.pill{display:inline-block;padding:2px 10px;border-radius:999px;font-size:12px;font-weight:500;background:#f1f5f9;color:#475569}
.pill-warn{background:#fff7ed;color:#9a3412}
.pill-danger{background:#fef2f2;color:#991b1b}
.pill-success{background:#f0fdf4;color:#166534}

/* Gallery */
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:10px}
.g-item{aspect-ratio:1/1;background:#f1f5f9;border-radius:10px;overflow:hidden;position:relative;border:1px solid var(--border)}
.g-item img{width:100%;height:100%;object-fit:cover;display:block}
.g-item .g-info{position:absolute;left:0;right:0;bottom:0;background:linear-gradient(to top,rgba(0,0,0,.7),transparent);color:#fff;padding:8px;font-size:11px}
.g-item .g-check{position:absolute;top:8px;left:8px;width:22px;height:22px;background:#fff;border-radius:6px;border:2px solid #cbd5e1;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:14px;color:#fff}
.g-item .g-check.checked{background:var(--accent);border-color:var(--accent)}
.g-item .g-check.checked::before{content:"✓"}
.g-item.video::after{content:"▶";position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:#fff;font-size:32px;text-shadow:0 2px 8px rgba(0,0,0,.5);pointer-events:none}

/* Public upload page */
.upload-wrap{min-height:100vh;background:linear-gradient(180deg,#f8fafc 0%,#eef2f7 100%);padding:40px 20px}
.upload-card{max-width:640px;margin:0 auto;background:#fff;border-radius:16px;padding:32px;box-shadow:var(--shadow-lg);border:1px solid var(--border)}
.upload-logo{width:64px;height:64px;border-radius:14px;overflow:hidden;background:#f1f5f9;margin:0 auto 12px;display:flex;align-items:center;justify-content:center;font-weight:700;color:#fff}
.upload-brand{text-align:center;margin-bottom:24px}
.upload-brand h1{margin:6px 0 4px;font-size:22px;letter-spacing:-.02em}
.upload-brand p{color:var(--muted);margin:0}
.dropzone{border:2px dashed var(--border-strong);border-radius:14px;padding:32px 20px;text-align:center;cursor:pointer;transition:border-color .15s, background .15s}
.dropzone:hover,.dropzone.drag{border-color:var(--accent);background:#eff6ff}
.dropzone .dz-icon{font-size:38px;color:var(--accent);margin-bottom:8px}
.dropzone .dz-title{font-weight:600;font-size:16px}
.dropzone .dz-sub{color:var(--muted);font-size:13px;margin-top:6px}
.file-list{margin-top:16px;display:flex;flex-direction:column;gap:6px;max-height:280px;overflow-y:auto}
.f-row{display:flex;align-items:center;justify-content:space-between;padding:8px 12px;background:#f8fafc;border-radius:8px;font-size:13px;gap:8px}
.f-row .f-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}
.f-row .f-status{font-size:12px;color:var(--muted);flex-shrink:0}
.f-row .f-status.ok{color:var(--success)}
.f-row .f-status.err{color:var(--danger)}
.f-row .f-remove{background:none;border:none;color:var(--muted);cursor:pointer;font-size:16px;padding:0 4px}
.progress{width:100%;height:8px;background:#e2e8f0;border-radius:999px;overflow:hidden;margin-top:8px}
.progress > div{height:100%;background:linear-gradient(90deg,var(--accent),#3b82f6);transition:width .2s ease;width:0}
.upload-summary{margin-top:14px;padding:12px 14px;background:#f1f5f9;border-radius:10px;font-size:13px;color:var(--ink-2)}
.hidden{display:none !important}

/* Success screen */
.success-screen{text-align:center;padding:24px 12px}
.success-screen .check{width:80px;height:80px;background:#dcfce7;color:#16a34a;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:44px;margin-bottom:16px}
.success-screen h2{margin:0 0 8px;font-size:22px}
.success-screen p{color:var(--muted);margin:0 0 20px}
.ref-badge{display:inline-block;padding:8px 16px;background:#f1f5f9;border-radius:10px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-weight:600}

/* Modal */
.modal-backdrop{position:fixed;inset:0;background:rgba(15,23,42,.5);display:flex;align-items:center;justify-content:center;padding:20px;z-index:100}
.modal{background:#fff;border-radius:14px;padding:24px;max-width:480px;width:100%;box-shadow:var(--shadow-lg)}
.modal h3{margin:0 0 6px}
.modal p{color:var(--muted);margin:0 0 20px}
.modal-actions{display:flex;gap:10px;justify-content:flex-end}

/* Tables */
table.tbl{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--border);border-radius:10px;overflow:hidden}
table.tbl th,table.tbl td{padding:12px 14px;text-align:left;font-size:14px;border-bottom:1px solid var(--border)}
table.tbl th{background:#f8fafc;font-weight:600;color:var(--ink-2);font-size:12px;text-transform:uppercase;letter-spacing:.06em}
table.tbl tr:last-child td{border-bottom:none}

/* Auth pages */
.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;background:linear-gradient(180deg,#f8fafc,#eef2f7)}
.auth-card{max-width:420px;width:100%;background:#fff;border-radius:16px;padding:32px;box-shadow:var(--shadow-lg);border:1px solid var(--border)}
.auth-card h1{margin:0 0 6px;font-size:22px;letter-spacing:-.02em}
.auth-card p.sub{color:var(--muted);margin:0 0 20px}