@import "https://fonts.googleapis.com/css2?family=Assistant:wght@300;400;600;700;800&display=swap";:root{color:#172033;--primary:#286de9;--primary-dark:#1552bd;--success:#16845c;--success-bg:#e6f7f0;--muted:#6b7280;--muted-bg:#edf0f5;--card:#fff;--border:#e4e9f2;--shadow:0 18px 50px #182f5b1f;background:#f4f7fb;font-family:Assistant,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{text-align:right;direction:rtl;min-height:100vh;margin:0}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}button,input{font:inherit}.app-shell{flex-direction:column;min-height:100vh;display:flex}.topbar{z-index:20;border-bottom:1px solid var(--border);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);background:#ffffffeb;position:sticky;top:0}.topbar-inner{justify-content:space-between;align-items:center;gap:24px;max-width:1180px;margin:auto;padding:14px 20px;display:flex}.brand img{height:58px;display:block}.nav-links{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.nav-links a,.link-button{color:#243047;cursor:pointer;background:0 0;border:0;border-radius:999px;padding:10px 14px}.nav-links a.active,.nav-links a:hover,.link-button:hover{color:var(--primary-dark);background:#eef4ff;text-decoration:none}.main-content{flex:1;width:min(1180px,100% - 32px);margin:34px auto}.footer{border-top:1px solid var(--border);width:min(1180px,100% - 32px);color:var(--muted);margin:0 auto 28px;padding-top:18px}.login-page{background:radial-gradient(circle at 100% 0,#286de926,#0000 30%),linear-gradient(135deg,#f6f9ff 0%,#eef4ff 50%,#fff 100%);place-items:center;min-height:100vh;padding:24px;display:grid}.login-card{background:var(--card);border:1px solid var(--border);width:min(460px,100%);box-shadow:var(--shadow);border-radius:28px;padding:36px}.login-logo{height:74px;margin-bottom:18px}.eyebrow{color:var(--primary);letter-spacing:.02em;margin:0 0 6px;font-weight:800}.login-title h1,.page-hero h1,.content-page h1{margin:0 0 10px;font-size:clamp(30px,5vw,44px);line-height:1.05}.login-title p,.page-hero p{color:var(--muted)}.login-form{gap:18px;margin-top:24px;display:grid}.login-form label,.search-form{gap:8px;font-weight:700;display:grid}input{border:1px solid var(--border);background:#fbfcff;border-radius:16px;outline:none;width:100%;padding:14px 16px}input:focus{border-color:var(--primary);box-shadow:0 0 0 4px #286de91f}.btn{cursor:pointer;border:0;border-radius:999px;padding:11px 18px;font-weight:800;transition:transform .15s,opacity .15s,background .15s}.btn:hover:not(:disabled){transform:translateY(-1px)}.btn:disabled{cursor:default;opacity:.72}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary-dark)}.btn-secondary{color:#26334d;background:#e8eef8}.btn-outline{color:var(--primary-dark);background:#fff;border:1px solid #bdd1fb}.btn-ghost{color:var(--muted);background:0 0}.btn-success{background:var(--success-bg);color:var(--success)}.btn-large{width:100%;padding:14px 20px}.login-help{color:var(--muted);text-align:center;margin:18px 0 0}.alert{border-radius:18px;margin:18px 0;padding:14px 18px}.alert.error{color:#a12626;background:#fff1f1;border:1px solid #ffd4d4}.page-hero{border:1px solid var(--border);background:linear-gradient(135deg,#fff 0%,#eef5ff 100%);border-radius:30px;margin-bottom:22px;padding:34px;box-shadow:0 10px 30px #182f5b12}.stats-grid,.contact-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:22px 0;display:grid}.stat-card,.content-card{background:var(--card);border:1px solid var(--border);border-radius:24px;padding:22px;box-shadow:0 10px 24px #182f5b0f}.stat-card span,.contact-card span{color:var(--muted);font-weight:700;display:block}.stat-card strong{margin:10px 0 6px;font-size:42px;line-height:1;display:block}.stat-card small{color:var(--muted)}.tabs{flex-wrap:wrap;gap:10px;margin:26px 0 16px;display:flex}.tabs button{border:1px solid var(--border);cursor:pointer;white-space:normal;text-align:center;background:#fff;border-radius:999px;min-height:44px;padding:10px 14px;font-weight:800;line-height:1.25}.tabs button.active{color:#fff;background:var(--primary);border-color:var(--primary)}.info-box{color:#174169;background:#eef7ff;border:1px solid #cce7ff;border-radius:22px;margin-bottom:18px;padding:16px 20px}.search-form{grid-template-columns:minmax(220px,1fr) auto auto;margin-top:12px}.lesson-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;display:grid}.lesson-card{background:var(--card);border:1px solid var(--border);border-radius:24px;padding:16px;box-shadow:0 10px 24px #182f5b0f}.lesson-card-header{justify-content:space-between;align-items:center;gap:10px;margin-bottom:12px;display:flex}.lesson-code{color:var(--muted);font-size:13px;font-weight:800}.status-pill{border-radius:999px;align-items:center;padding:5px 10px;font-size:12px;font-weight:800;display:inline-flex}.status-pill.success{color:var(--success);background:var(--success-bg)}.status-pill.muted{color:#6b7280;background:var(--muted-bg)}.lesson-card h3{margin:0 0 10px;font-size:16px;line-height:1.35}.praktikum-card h3{font-weight:500}.lesson-date{color:var(--muted);margin:0 0 10px;font-size:13px}.lesson-actions{flex-wrap:wrap;gap:8px;display:flex}.lesson-actions .btn{padding:8px 12px;font-size:13px}@media (width<=980px){.lesson-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width<=640px){.lesson-grid{grid-template-columns:1fr}}.empty-state,.loading-card{color:var(--muted);text-align:center;background:#fff;border:1px dashed #cbd5e1;border-radius:24px;padding:32px}.loading-card{justify-content:center;align-items:center;gap:12px;display:flex}.spinner{border:3px solid #dbe6f6;border-top-color:var(--primary);border-radius:50%;width:24px;height:24px;animation:.8s linear infinite spin}.dashboard-note{color:var(--muted);margin:24px 0}.dialog-backdrop{z-index:50;background:#0d182a7a;place-items:center;padding:20px;display:grid;position:fixed;inset:0}.dialog{width:min(430px,100%);box-shadow:var(--shadow);background:#fff;border-radius:26px;padding:28px;position:relative}.dialog h2{margin-top:0}.dialog-close{cursor:pointer;background:#f2f4f8;border:0;border-radius:50%;width:36px;height:36px;font-size:24px;line-height:1;position:absolute;top:14px;left:14px}.dialog-actions{justify-content:flex-end;gap:10px;margin-top:24px;display:flex}.content-page{max-width:900px}.content-card p,.content-card li{font-size:18px;line-height:1.75}.contact-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.contact-card strong{margin-top:8px;font-size:22px;display:block}@keyframes spin{to{transform:rotate(360deg)}}@media (width<=820px){.topbar-inner{flex-direction:column;align-items:flex-start}.nav-links{width:100%}.stats-grid,.lesson-grid,.contact-grid,.search-form{grid-template-columns:1fr}.login-card,.page-hero{padding:24px}}