:root{
    --bg:#f4f7fb;
    --surface:#ffffff;
    --surface-2:#f8fafc;
    --text:#172033;
    --muted:#667085;
    --line:#e5eaf2;
    --primary:#2563eb;
    --primary-dark:#1d4ed8;
    --primary-soft:#e8f0ff;
    --success:#16a34a;
    --danger:#dc2626;
    --warning:#d97706;
    --sidebar:#0f172a;
    --sidebar-2:#172554;
    --shadow:0 14px 40px rgba(15,23,42,.08);
    --radius:18px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
    margin:0;
    min-height:100vh;
    font-family:Inter,Segoe UI,Roboto,Arial,Helvetica,sans-serif;
    background:radial-gradient(circle at top left,rgba(37,99,235,.10),transparent 34rem),var(--bg);
    color:var(--text);
    font-size:15px;
}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}.app-shell{display:flex;min-height:100vh}.sidebar{
    width:286px;
    min-width:286px;
    background:linear-gradient(180deg,var(--sidebar),var(--sidebar-2));
    color:#fff;
    padding:24px 18px;
    position:sticky;
    top:0;
    height:100vh;
    overflow-y:auto;
    box-shadow:12px 0 30px rgba(15,23,42,.14);
}.brand{display:flex;gap:12px;align-items:center;margin-bottom:28px;padding:4px 6px 18px;border-bottom:1px solid rgba(255,255,255,.10)}.brand-mark{
    width:44px;height:44px;border-radius:14px;
    display:grid;place-items:center;
    background:linear-gradient(135deg,#60a5fa,#2563eb);
    color:#fff;font-weight:900;letter-spacing:-.04em;
    box-shadow:0 10px 26px rgba(37,99,235,.35);
}.brand strong{display:block;font-size:20px;line-height:1.1}.brand span{display:block;margin-top:3px;font-size:12px;color:#cbd5e1}.side-nav{display:flex;flex-direction:column;gap:7px}.side-nav a{
    display:flex;align-items:center;gap:10px;
    color:#dbe7ff;text-decoration:none;
    padding:12px 13px;border-radius:13px;
    font-weight:700;transition:.16s ease;
}.side-nav a span{width:22px;text-align:center;opacity:.95}.side-nav a:hover{background:rgba(255,255,255,.10);color:#fff;text-decoration:none;transform:translateX(2px)}.side-nav a.active{background:#fff;color:#1d4ed8;box-shadow:0 12px 30px rgba(0,0,0,.16)}.side-note{margin-top:24px;background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.14);border-radius:16px;padding:14px;color:#dbeafe}.side-note b{display:block;margin-bottom:6px;color:#fff}.side-note span{font-size:12px;line-height:1.45;color:#cbd5e1}.main{flex:1;min-width:0;padding:28px}.topbar{
    display:flex;align-items:center;justify-content:space-between;gap:20px;
    margin-bottom:22px;
    background:rgba(255,255,255,.78);
    border:1px solid rgba(229,234,242,.86);
    box-shadow:var(--shadow);
    border-radius:24px;
    padding:22px 24px;
    backdrop-filter:blur(10px);
}.eyebrow{text-transform:uppercase;letter-spacing:.08em;font-size:12px;font-weight:900;color:var(--primary);margin-bottom:6px}.topbar h1{margin:0;font-size:30px;letter-spacing:-.04em}.topbar small{display:block;margin-top:6px;color:var(--muted)}.userbox{display:flex;align-items:center;gap:12px;min-width:max-content}.avatar{width:42px;height:42px;border-radius:14px;background:var(--primary-soft);color:var(--primary-dark);font-weight:900;display:grid;place-items:center}.user-meta strong{display:block;font-size:14px}.user-meta a{display:inline-block;margin-top:2px;color:var(--danger);font-size:13px;font-weight:800}.welcome-card{
    display:flex;justify-content:space-between;align-items:center;gap:20px;
    background:linear-gradient(135deg,#1d4ed8,#2563eb 58%,#3b82f6);
    color:#fff;border-radius:24px;padding:26px;
    box-shadow:0 18px 55px rgba(37,99,235,.24);
    margin-bottom:18px;
}.welcome-card h2{margin:10px 0 8px;font-size:27px;letter-spacing:-.03em}.welcome-card p{margin:0;max-width:760px;color:#e8f0ff;line-height:1.55}.badge{display:inline-flex;align-items:center;border-radius:999px;padding:7px 11px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.22);font-size:12px;font-weight:900}.grid{display:grid;gap:16px}.cards{grid-template-columns:repeat(6,minmax(0,1fr));margin-bottom:18px}.card,.stat{
    background:var(--surface);border:1px solid var(--line);
    border-radius:var(--radius);box-shadow:var(--shadow);
    padding:20px;margin-bottom:18px;
}.card{overflow:hidden}.card h2{margin:0 0 12px;font-size:20px;letter-spacing:-.02em}.card p{color:var(--muted);line-height:1.55}.card-title-row{display:flex;justify-content:space-between;align-items:flex-start;gap:16px}.stat{position:relative;min-height:122px;display:flex;flex-direction:column;justify-content:space-between}.stat:before{content:"";position:absolute;inset:0 0 auto 0;height:4px;background:linear-gradient(90deg,var(--primary),#60a5fa);border-radius:var(--radius) var(--radius) 0 0}.stat span{color:var(--muted);font-size:13px;font-weight:900;text-transform:uppercase;letter-spacing:.04em}.stat strong{font-size:36px;display:block;letter-spacing:-.06em;line-height:1}.stat em{font-style:normal;font-size:12px;color:#94a3b8}.actions{display:flex;justify-content:flex-end;align-items:center;margin-bottom:14px;gap:10px;flex-wrap:wrap}.btn,button.btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    background:#eef2f7;border:1px solid #d9e2ef;border-radius:12px;
    padding:10px 15px;text-decoration:none;color:#182234;cursor:pointer;
    font-weight:900;min-height:42px;transition:.15s ease;font-family:inherit;
}.btn:hover,button.btn:hover{transform:translateY(-1px);box-shadow:0 10px 24px rgba(15,23,42,.08);text-decoration:none}.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark)}table{width:100%;border-collapse:separate;border-spacing:0;overflow:hidden}th,td{padding:13px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle}th{font-size:12px;color:#64748b;background:#f8fafc;text-transform:uppercase;letter-spacing:.04em}tbody tr:hover{background:#f8fbff}tbody tr:last-child td{border-bottom:0}.row-actions{display:flex;gap:10px;align-items:center;justify-content:flex-end}.row-actions form{margin:0}.row-actions button{border:0;background:transparent;color:var(--danger);cursor:pointer;padding:0;font-weight:900;font-family:inherit}.form-card{max-width:780px}.form-card form{display:block}label{display:block;font-weight:900;margin-top:15px;margin-bottom:7px;color:#253047}input,select,textarea{
    width:100%;border:1px solid #d6deeb;border-radius:13px;
    padding:12px 13px;background:#fff;color:var(--text);
    outline:none;font-family:inherit;font-size:15px;transition:.15s ease;
}input:focus,select:focus,textarea:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(37,99,235,.12)}small{color:var(--muted)}.check{display:flex;align-items:center;gap:9px}.check input{width:auto;accent-color:var(--primary)}.alert{padding:13px 15px;border-radius:14px;margin-bottom:14px;font-weight:800;border:1px solid transparent}.alert-success{background:#dcfce7;color:#166534;border-color:#bbf7d0}.alert-danger{background:#fee2e2;color:#991b1b;border-color:#fecaca}.alert-warning{background:#fef3c7;color:#92400e;border-color:#fde68a}.guest-body{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;background:radial-gradient(circle at 20% 20%,rgba(59,130,246,.35),transparent 28rem),linear-gradient(135deg,#0f172a,#1d4ed8)}.login-card{width:440px;background:rgba(255,255,255,.96);padding:32px;border-radius:24px;box-shadow:0 24px 70px rgba(0,0,0,.25);border:1px solid rgba(255,255,255,.60)}.login-card h1{margin:0 0 8px;font-size:28px;letter-spacing:-.04em}.login-card p{margin:0 0 20px;color:var(--muted)}.login-card button{width:100%;margin-top:18px}.login-card small{display:block;margin-top:14px;text-align:center}.steps{list-style:none;margin:6px 0 0;padding:0;display:grid;gap:12px}.steps li{display:flex;gap:12px;align-items:flex-start;padding:13px;border:1px solid var(--line);border-radius:15px;background:#fbfdff}.steps li span{width:32px;height:32px;border-radius:11px;background:var(--primary-soft);color:var(--primary-dark);font-weight:900;display:grid;place-items:center;flex:none}.steps b{display:block;margin-bottom:3px}.steps small{display:block;line-height:1.4}.conflict-report{white-space:pre-wrap;background:#0f172a;color:#e2e8f0;padding:16px;border-radius:14px;overflow:auto;border:1px solid #1e293b}@media(max-width:1300px){.cards{grid-template-columns:repeat(3,1fr)}}@media(max-width:900px){.app-shell{display:block}.sidebar{width:100%;min-width:0;height:auto;position:relative;border-radius:0 0 24px 24px}.side-nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}.side-note{display:none}.main{padding:18px}.topbar,.welcome-card{display:block}.userbox{margin-top:18px}.cards{grid-template-columns:repeat(2,1fr)}table{display:block;overflow-x:auto;white-space:nowrap}.row-actions{justify-content:flex-start}.welcome-card .btn{margin-top:16px}}@media(max-width:560px){.main{padding:14px}.topbar{padding:18px;border-radius:18px}.topbar h1{font-size:24px}.welcome-card{padding:20px;border-radius:18px}.welcome-card h2{font-size:22px}.cards{grid-template-columns:1fr}.side-nav{grid-template-columns:1fr}.login-card{width:100%;padding:24px}.brand{margin-bottom:16px}}
.pill{display:inline-flex;align-items:center;border-radius:999px;padding:5px 10px;background:#eef2ff;color:#3730a3;font-size:12px;font-weight:900}.status-ok{color:var(--success);font-weight:900}.status-passive{color:#94a3b8;font-weight:900}.inline-form{margin-top:12px}.inline-row{display:grid;grid-template-columns:1fr auto;gap:10px;align-items:end}.availability-card{overflow:visible}.availability-actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap;justify-content:flex-end}.availability-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:14px;margin:18px 0}.day-panel{border:1px solid var(--line);border-radius:16px;background:#fbfdff;overflow:hidden}.day-head{margin:0;padding:12px 13px;background:#f1f5f9;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:9px;font-weight:900;color:#253047}.day-head input{width:auto;accent-color:var(--primary)}.slot-list{display:grid;gap:8px;padding:10px}.slot-check{margin:0;padding:11px 10px;border:1px solid #dbe4f0;border-radius:13px;background:#fff;display:flex;align-items:center;gap:8px;min-height:44px;cursor:pointer;transition:.14s ease}.slot-check:hover{border-color:#93c5fd;background:#f8fbff}.slot-check input{width:auto;accent-color:var(--primary)}.slot-check span{font-weight:900}.slot-check small{margin-left:auto;font-size:11px}.slot-check.checked{background:var(--primary-soft);border-color:#93c5fd;color:var(--primary-dark)}.info-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.info-grid div{padding:14px;border:1px solid var(--line);border-radius:15px;background:#fbfdff}.info-grid b{display:block;margin-bottom:5px}.info-grid span{display:block;color:var(--muted);line-height:1.45}@media(max-width:1180px){.availability-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.info-grid{grid-template-columns:1fr}}@media(max-width:760px){.availability-grid{grid-template-columns:1fr}.inline-row{grid-template-columns:1fr}.availability-actions{justify-content:flex-start}}
.lesson-count-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:14px;margin:18px 0}.lesson-count-card{margin:0;padding:15px;border:1px solid var(--line);border-radius:16px;background:#fbfdff}.lesson-count-card span{display:block;font-weight:900;margin-bottom:10px}.lesson-count-card input{font-size:22px;font-weight:900;text-align:center}.lesson-count-card small{display:block;margin-top:7px;text-align:center}.form-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:16px}.day-summary-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px;margin:14px 0 18px}.day-summary-card{padding:13px;border:1px solid var(--line);border-radius:15px;background:#fbfdff}.day-summary-card strong{display:block;margin-bottom:5px}.day-summary-card span{color:var(--muted);font-size:13px;font-weight:800}.badge-success{background:#dcfce7;color:#166534;border-color:#bbf7d0}@media(max-width:1180px){.lesson-count-grid,.day-summary-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}@media(max-width:760px){.lesson-count-grid,.day-summary-grid{grid-template-columns:1fr}.form-actions{justify-content:flex-start}}
.class-hours-panel{margin-top:18px;padding:16px;border:1px solid var(--line);border-radius:18px;background:#fbfdff}.compact-title-row h2{margin-bottom:6px}.compact-title-row p{margin:0}.class-lesson-count-grid{grid-template-columns:repeat(5,minmax(0,1fr))}.class-hours-pill{white-space:normal;line-height:1.45;background:#eff6ff;color:#1d4ed8}@media(max-width:1180px){.class-lesson-count-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}@media(max-width:760px){.class-lesson-count-grid{grid-template-columns:1fr}}

/* v1.5 Ön Kontrol */
.precheck-hero{align-items:stretch}.precheck-status{min-width:190px;border-radius:18px;padding:18px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);display:flex;flex-direction:column;justify-content:center;text-align:center}.precheck-status span{font-size:12px;text-transform:uppercase;letter-spacing:.08em;font-weight:900;color:#e8f0ff}.precheck-status strong{font-size:24px;margin-top:8px}.precheck-status.status-success{background:rgba(22,163,74,.28)}.precheck-status.status-warning{background:rgba(217,119,6,.30)}.precheck-status.status-danger{background:rgba(220,38,38,.30)}.precheck-panels{display:grid;grid-template-columns:1fr 1fr;gap:16px}.precheck-message-card{min-height:170px}.notice-list{margin:0;padding:0;display:grid;gap:10px;list-style:none}.notice-list li{position:relative;padding:12px 13px 12px 38px;border-radius:14px;border:1px solid var(--line);background:#fbfdff;line-height:1.45}.notice-list li:before{position:absolute;left:13px;top:12px;font-weight:900}.danger-list li{background:#fff7f7;border-color:#fecaca;color:#7f1d1d}.danger-list li:before{content:"!"}.warning-list li{background:#fffbeb;border-color:#fde68a;color:#78350f}.warning-list li:before{content:"⚠"}.info-list li{background:#eff6ff;border-color:#bfdbfe;color:#1e3a8a}.info-list li:before{content:"i"}.empty-message{margin:0;color:var(--muted);background:#f8fafc;border:1px dashed #d6deeb;border-radius:14px;padding:14px}.status-badge{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:6px 10px;font-size:12px;font-weight:900;white-space:nowrap}.status-badge.status-ok{background:#dcfce7;color:#166534}.status-badge.status-warning{background:#fef3c7;color:#92400e}.status-badge.status-error{background:#fee2e2;color:#991b1b}.mini-day-list{display:flex;gap:6px;flex-wrap:wrap}.mini-day-list span{display:inline-flex;background:#f1f5f9;border:1px solid #e2e8f0;border-radius:999px;padding:4px 8px;font-size:12px;font-weight:800;color:#475569}.text-danger{color:var(--danger);font-weight:900}.text-success{color:var(--success);font-weight:900}.table-message{margin-top:7px;font-size:12px;color:#64748b;line-height:1.35;max-width:420px}@media(max-width:1000px){.precheck-panels{grid-template-columns:1fr}.precheck-status{margin-top:18px}}


/* v1.6 Ders Ağırlığı */
.generator-form{display:flex;gap:12px;align-items:center;flex-wrap:wrap;justify-content:flex-end}.generator-check{margin:0;background:#f8fafc;border:1px solid var(--line);border-radius:999px;padding:10px 13px;min-height:42px}.generator-check input{width:auto}.info-card p{margin-bottom:0;line-height:1.55;color:#475569}.weight-badge{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:12px;font-weight:900;border:1px solid #dbe4f0;background:#f8fafc;color:#334155}.weight-1{background:#ecfdf5;color:#047857;border-color:#bbf7d0}.weight-2{background:#f0fdf4;color:#166534;border-color:#bbf7d0}.weight-3{background:#eff6ff;color:#1d4ed8;border-color:#bfdbfe}.weight-4{background:#fff7ed;color:#c2410c;border-color:#fed7aa}.weight-5{background:#fef2f2;color:#b91c1c;border-color:#fecaca}@media(max-width:760px){.generator-form{justify-content:flex-start}.generator-check{width:100%;border-radius:14px}}