/* YonQR — Ultra Modern Kurumsal Design System */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

:root {
    --font: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
    --primary: #2563eb;
    --primary-dark: color-mix(in srgb, var(--primary) 72%, #0f172a);
    --primary-light: color-mix(in srgb, var(--primary) 65%, #ffffff);
    --accent: #06b6d4;
    --accent-light: #67e8f9;
    --navy: #0f172a;
    --navy-mid: #1e293b;
    --text: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --bg: #ffffff;
    --bg-subtle: #f8fafc;
    --bg-muted: #f1f5f9;
    --bg-elevated: #ffffff;
    --border: #e2e8f0;
    --border-light: #f1f5f9;
    --success: #10b981;
    --success-bg: #ecfdf5;
    --warning: #f59e0b;
    --warning-bg: #fffbeb;
    --danger: #ef4444;
    --danger-bg: #fef2f2;
    --info-bg: #eff6ff;
    --info-text: #1d4ed8;
    --radius-xs: 6px;
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-2xl: 24px;
    --shadow-xs: 0 1px 2px rgba(15,23,42,.04);
    --shadow-sm: 0 2px 8px rgba(15,23,42,.06);
    --shadow: 0 8px 30px rgba(15,23,42,.08);
    --shadow-lg: 0 20px 50px rgba(15,23,42,.12);
    --shadow-xl: 0 28px 64px rgba(15,23,42,.16);
    --shadow-primary: 0 8px 28px rgba(37,99,235,.35);
    --glass: rgba(255,255,255,.78);
    --glass-border: rgba(228,228,231,.8);
    --transition: .22s cubic-bezier(.4,0,.2,1);
    --transition-slow: .35s cubic-bezier(.4,0,.2,1);
}

*,*::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(--text);line-height:1.65;background:var(--bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
::selection{background:var(--primary);color:#fff}

.container{max-width:1200px;margin:0 auto;padding:0 28px}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:var(--radius-sm);font-weight:700;font-size:14px;border:1.5px solid transparent;cursor:pointer;transition:var(--transition);font-family:var(--font);letter-spacing:-.01em;white-space:nowrap}
.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary);box-shadow:var(--shadow-primary)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 14px 36px rgba(9,9,11,.28)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{border-color:var(--border);color:var(--text);background:var(--bg)}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);background:var(--bg-subtle);box-shadow:var(--shadow-xs)}
.btn-ghost{background:transparent;color:var(--text-secondary);padding:10px 16px;border-color:transparent}
.btn-ghost:hover{color:var(--primary);background:var(--bg-muted)}
.btn-white{background:#fff;color:var(--primary);border-color:#fff;box-shadow:var(--shadow-sm)}
.btn-white:hover{background:var(--bg-subtle);transform:translateY(-2px);box-shadow:var(--shadow)}
.btn-lg{padding:16px 32px;font-size:15px;border-radius:var(--radius)}
.btn-sm{padding:8px 16px;font-size:12px;border-radius:var(--radius-xs)}
.btn-block{width:100%}
.btn-danger{background:var(--danger);color:#fff;border-color:var(--danger)}

.section-label{display:inline-flex;align-items:center;gap:8px;padding:7px 16px;background:var(--primary);color:#fff;border-radius:100px;font-size:10px;font-weight:800;text-transform:uppercase;letter-spacing:.1em;margin-bottom:18px}
.section-title{font-size:clamp(28px,4.2vw,42px);font-weight:800;line-height:1.1;letter-spacing:-.035em;color:var(--navy)}
.section-desc{font-size:17px;color:var(--text-secondary);margin-top:14px;max-width:580px;line-height:1.75;font-weight:450}
.section-header{text-align:center;margin-bottom:72px}
.section-header .section-desc{margin:14px auto 0}

.alert{padding:14px 20px;border-radius:var(--radius-sm);margin-bottom:20px;font-size:14px;font-weight:500;border:1px solid transparent;line-height:1.55}
.alert-success{background:var(--success-bg);color:#166534;border-color:#bbf7d0}
.alert-error{background:var(--danger-bg);color:#991b1b;border-color:#fecaca}
.alert-info{background:var(--info-bg);color:var(--info-text);border-color:var(--border)}
.alert-warning{background:var(--warning-bg);color:#854d0e;border-color:#fde047}

.card{background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-xs);transition:var(--transition)}
.card:hover{box-shadow:var(--shadow-sm)}
.card-header{display:flex;align-items:center;justify-content:space-between;padding:20px 26px;border-bottom:1px solid var(--border-light);background:linear-gradient(180deg,var(--bg) 0%,var(--bg-subtle) 100%)}
.card-header h3{font-size:15px;font-weight:800;color:var(--navy);letter-spacing:-.02em}
.card-body{padding:26px}

.form-group{margin-bottom:20px}
.form-group label{display:block;font-size:13px;font-weight:700;color:var(--text-secondary);margin-bottom:7px;letter-spacing:-.01em}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:12px 16px;border:1.5px solid var(--border);border-radius:var(--radius-sm);font-size:14px;font-family:var(--font);color:var(--text);background:var(--bg);transition:var(--transition)}
.form-group input::placeholder,.form-group textarea::placeholder{color:var(--text-muted)}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(37,99,235,.12)}
.form-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:18px}
.form-actions{display:flex;gap:12px;flex-wrap:wrap;padding-top:8px}
.checkbox-label{display:inline-flex;align-items:center;gap:8px;font-size:14px;cursor:pointer;font-weight:600}

.table-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--bg)}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{padding:14px 20px;text-align:left;border-bottom:1px solid var(--border-light)}
th{font-weight:800;color:var(--text-muted);font-size:10px;text-transform:uppercase;letter-spacing:.08em;background:var(--bg-subtle)}
tbody tr{transition:var(--transition)}
tbody tr:hover td{background:var(--bg-subtle)}
tr:last-child td{border-bottom:none}

.badge{display:inline-flex;align-items:center;padding:5px 12px;border-radius:100px;font-size:10px;font-weight:800;text-transform:uppercase;letter-spacing:.05em}
.badge-success{background:var(--success-bg);color:var(--success)}
.badge-primary{background:#eff6ff;color:#2563eb}
.badge-warning{background:var(--warning-bg);color:var(--warning)}
.badge-danger{background:var(--danger-bg);color:var(--danger)}
.badge-secondary{background:var(--bg-muted);color:var(--text-secondary)}

.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px;margin-bottom:28px}
.stat-card{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px;display:flex;align-items:flex-start;gap:16px;transition:var(--transition-slow);position:relative;overflow:hidden}
.stat-card::after{content:'';position:absolute;inset:0;background:linear-gradient(135deg,transparent 60%,rgba(37,99,235,.03));pointer-events:none}
.stat-card:hover{border-color:var(--primary-light);box-shadow:var(--shadow);transform:translateY(-3px)}
.stat-icon{width:50px;height:50px;border-radius:var(--radius);display:flex;align-items:center;justify-content:center;flex-shrink:0;border:none}
.stat-icon svg{width:22px;height:22px}
.stat-icon.blue{background:linear-gradient(135deg,#dbeafe,#bfdbfe);color:#2563eb}
.stat-icon.green{background:linear-gradient(135deg,#d1fae5,#a7f3d0);color:#059669}
.stat-icon.orange{background:linear-gradient(135deg,#ffedd5,#fed7aa);color:#ea580c}
.stat-icon.purple{background:linear-gradient(135deg,#ede9fe,#ddd6fe);color:#7c3aed}
.stat-icon.cyan{background:linear-gradient(135deg,#cffafe,#a5f3fc);color:#0891b2}
.stat-value{display:block;font-size:30px;font-weight:800;color:var(--navy);line-height:1.1;letter-spacing:-.03em}
.stat-label{font-size:11px;color:var(--text-muted);font-weight:700;margin-top:4px;text-transform:uppercase;letter-spacing:.06em}

.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.quick-actions{display:flex;gap:12px;padding:20px 26px;flex-wrap:wrap}
.empty-state{padding:56px 24px;text-align:center;color:var(--text-muted);font-weight:500}
.text-muted{color:var(--text-muted);font-size:13px;line-height:1.65}
.back-link{display:inline-flex;align-items:center;gap:6px;color:var(--text-muted);font-size:13px;font-weight:700;margin-bottom:10px;transition:var(--transition)}
.back-link:hover{color:var(--primary)}

@media(max-width:768px){
    .grid-2{grid-template-columns:1fr}
    .stats-grid{grid-template-columns:1fr 1fr}
    .container{padding:0 20px}
}