:root{--bg:#f5f7fb;--panel:#fff;--text:#172033;--muted:#6b7280;--brand:#0f766e;--brand2:#0b1324;--line:#e5e7eb;--danger:#dc2626;--warn:#d97706;--ok:#16a34a;--shadow:0 14px 40px rgba(15,23,42,.08)}
[data-theme=dark]{--bg:#0b1120;--panel:#111827;--text:#e5e7eb;--muted:#9ca3af;--brand:#14b8a6;--brand2:#020617;--line:#243044;--shadow:0 14px 40px rgba(0,0,0,.35)}
*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--text)}a{text-decoration:none;color:inherit}.app-body{display:flex;min-height:100vh}.sidebar{width:270px;background:linear-gradient(180deg,var(--brand2),#092f35);color:white;padding:22px;position:fixed;left:0;top:0;bottom:0;display:flex;flex-direction:column}.brand{display:flex;gap:12px;align-items:center;margin-bottom:30px}.brand span,.userbox span{display:block;color:#bfd5d2;font-size:12px;margin-top:3px}.logo{width:46px;height:46px;border-radius:16px;background:linear-gradient(135deg,#14b8a6,#fbbf24);display:grid;place-items:center;font-weight:900;color:#07231f}.sidebar nav{display:grid;gap:8px}.sidebar nav a{padding:12px 14px;border-radius:14px;color:#ecfeff}.sidebar nav a:hover{background:rgba(255,255,255,.12)}.userbox{margin-top:auto;border-top:1px solid rgba(255,255,255,.15);padding-top:16px}.userbox a{display:inline-block;margin-top:9px;color:#fde68a}.main{margin-left:270px;width:calc(100% - 270px);padding:26px}.topbar{display:flex;justify-content:space-between;gap:15px;align-items:center;margin-bottom:20px}.topbar h1{margin:0;font-size:28px}.topbar p{margin:6px 0 0;color:var(--muted)}.theme-toggle,.btn,button,input[type=submit]{border:0;background:var(--brand);color:white;padding:10px 14px;border-radius:13px;cursor:pointer;font-weight:700}.btn.secondary{background:#334155}.btn.danger{background:var(--danger)}.btn.small{padding:7px 10px;font-size:12px}.grid{display:grid;gap:18px}.grid.cards{grid-template-columns:repeat(4,minmax(0,1fr))}.card,.panel{background:var(--panel);border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);padding:20px}.metric{font-size:31px;font-weight:900;margin:8px 0}.muted{color:var(--muted)}.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.space{justify-content:space-between}.table{width:100%;border-collapse:collapse}.table th,.table td{padding:13px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}.table th{font-size:12px;color:var(--muted);text-transform:uppercase}.form{display:grid;gap:14px;max-width:900px}.form.two{grid-template-columns:1fr 1fr}.form label{font-weight:700;font-size:13px}.form input,.form select,.form textarea{width:100%;padding:12px;border:1px solid var(--line);border-radius:14px;background:var(--panel);color:var(--text)}textarea{min-height:110px}.badge{padding:6px 10px;border-radius:999px;font-size:12px;font-weight:800;display:inline-block}.priority-low{background:#dcfce7;color:#166534}.priority-medium{background:#dbeafe;color:#1d4ed8}.priority-high{background:#fef3c7;color:#92400e}.priority-urgent{background:#fee2e2;color:#991b1b}.status-todo{background:#e5e7eb;color:#374151}.status-in_progress{background:#dbeafe;color:#1d4ed8}.status-review{background:#ede9fe;color:#6d28d9}.status-completed{background:#dcfce7;color:#166534}.alert{padding:12px 14px;border-radius:14px;margin-bottom:15px}.alert.success{background:#dcfce7;color:#166534}.alert.error{background:#fee2e2;color:#991b1b}.kanban{display:grid;grid-template-columns:repeat(4,minmax(230px,1fr));gap:16px;overflow-x:auto}.column{background:rgba(148,163,184,.13);border:1px solid var(--line);border-radius:20px;padding:12px;min-height:500px}.column h3{margin:6px}.task-card{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:14px;margin:10px 0;box-shadow:var(--shadow);cursor:grab}.task-card h4{margin:0 0 8px}.auth{min-height:100vh;display:grid;place-items:center;background:linear-gradient(135deg,#0b1324,#0f766e)}.auth .box{width:min(460px,92vw);background:white;color:#172033;border-radius:26px;padding:30px;box-shadow:0 25px 80px rgba(0,0,0,.25)}.auth .box input{width:100%;padding:13px;border:1px solid #ddd;border-radius:14px;margin:8px 0 14px}.timeline{display:grid;gap:12px}.timeline div{border-left:4px solid var(--brand);padding:8px 12px;background:var(--panel);border-radius:10px}.calendar{display:grid;grid-template-columns:repeat(7,1fr);gap:10px}.day{min-height:120px;background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:10px}.day b{display:block;margin-bottom:8px}.event{font-size:12px;background:#ecfeff;color:#0f766e;padding:6px;border-radius:9px;margin-top:5px}.danger-text{color:var(--danger);font-weight:800}
@media(max-width:900px){.sidebar{position:relative;width:100%;bottom:auto}.app-body{display:block}.main{margin-left:0;width:100%;padding:16px}.grid.cards{grid-template-columns:1fr 1fr}.form.two{grid-template-columns:1fr}.kanban{grid-template-columns:repeat(4,260px)}}
@media(max-width:520px){.grid.cards{grid-template-columns:1fr}.topbar{align-items:flex-start;flex-direction:column}}