:root{--bg:#f4f7fb;--surface:#fff;--surface-soft:#f8fafc;--line:#dbe3ef;--text:#172033;--muted:#65758b;--primary:#2563eb;--primary-dark:#1d4ed8;--primary-soft:#dbeafe;--danger:#dc2626;--danger-soft:#fee2e2;--success-soft:#dcfce7;--success:#15803d;--warning-soft:#fef3c7;--warning:#92400e;font-family:Pretendard,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{min-width:1180px;color:var(--text);background:var(--bg);margin:0}button,input,select{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.55}.login-page{background:radial-gradient(circle at 0 0,#2563eb2e,#0000 32%),linear-gradient(135deg,#eff6ff 0%,#f8fafc 48%,#eef2ff 100%);grid-template-columns:1.1fr 420px;gap:28px;min-height:100vh;padding:52px;display:grid}.login-hero,.login-card,.content-panel,.notice-card{background:#ffffffeb;border:1px solid #dbe3efe6;border-radius:24px;box-shadow:0 18px 48px #0f172a14}.login-hero{flex-direction:column;gap:26px;padding:44px;display:flex}.eyebrow{letter-spacing:.08em;color:var(--primary);text-transform:uppercase;margin:0 0 8px;font-size:13px;font-weight:800}h1,h2,h3,p{margin-top:0}.login-hero h1{margin:0;font-size:42px;line-height:1.18}.login-description{color:var(--muted);margin:14px 0 0;font-size:18px}.period-panel{background:var(--primary-soft);color:#1e3a8a;border-radius:18px;justify-content:space-between;gap:20px;padding:22px;display:flex}.target-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;display:grid}.target-card{background:var(--surface-soft);border:1px solid var(--line);border-radius:18px;flex-direction:column;gap:8px;padding:18px;display:flex}.target-card span,.schedule-item span{color:var(--muted)}.login-card{align-self:start;padding:34px}.login-card h2{margin-bottom:24px;font-size:28px}.login-card form,.search-grid{gap:16px;display:grid}label{color:#334155;gap:8px;font-weight:700;display:grid}input,select{border:1px solid var(--line);height:44px;color:var(--text);background:#fff;border-radius:12px;outline:none;padding:0 14px}input:focus,select:focus{border-color:var(--primary);box-shadow:0 0 0 4px #2563eb1f}.primary-button,.secondary-button,.danger-button,.line-button,.ghost-button,.disabled-button{white-space:nowrap;border:0;border-radius:12px;min-height:40px;padding:0 18px;font-weight:800}.primary-button{background:var(--primary);color:#fff}.primary-button:hover{background:var(--primary-dark)}.secondary-button{background:var(--primary-soft);color:var(--primary-dark)}.danger-button{background:var(--danger-soft);color:var(--danger)}.line-button,.ghost-button{border:1px solid var(--line);color:#334155;background:#fff}.disabled-button{color:#475569;background:#e5e7eb}.small{border-radius:10px;min-height:32px;padding:0 12px;font-size:13px}.wide{width:100%;margin-top:8px}.notice-box{background:var(--surface-soft);border:1px solid var(--line);border-radius:16px;margin-top:24px;padding:18px}.notice-box ul,.notice-list{color:var(--muted);margin:12px 0 0;padding-left:20px;line-height:1.8}.main-page{padding:24px}.app-header{background:var(--surface);border:1px solid var(--line);border-radius:22px;justify-content:space-between;align-items:center;gap:24px;padding:22px 26px;display:flex;box-shadow:0 12px 30px #0f172a0f}.app-header h1{margin:0;font-size:26px}.header-right{align-items:center;gap:14px;display:flex}.user-summary{background:var(--surface-soft);border:1px solid var(--line);border-radius:16px;align-items:center;gap:18px;padding:10px 12px;display:flex}.user-summary div:first-child{color:var(--muted);align-items:center;gap:10px;display:flex}.user-summary strong{color:var(--text)}.credit-pill{background:var(--primary-soft);color:#1e3a8a;border-radius:999px;padding:8px 12px;font-weight:700}.tab-menu{background:var(--surface);border:1px solid var(--line);border-radius:18px;gap:8px;margin:18px 0;padding:8px;display:flex}.tab{height:44px;color:var(--muted);background:0 0;border:0;border-radius:12px;flex:none;padding:0 22px;font-weight:900}.tab.active{background:var(--primary);color:#fff;box-shadow:0 10px 20px #2563eb3d}.tab-content{min-height:calc(100vh - 172px)}.toast{z-index:10;color:#fff;background:#0f172a;border-radius:14px;padding:14px 18px;font-weight:800;position:fixed;top:128px;right:32px;box-shadow:0 18px 36px #0f172a38}.home-tab{gap:22px;display:grid}.clock-panel{color:#fff;background:linear-gradient(135deg,#2563ebe6,#1e40afeb),radial-gradient(circle at 0 0,#ffffff5c,#0000 30%);border-radius:28px;align-content:center;place-items:center;gap:14px;min-height:360px;display:grid;box-shadow:0 22px 56px #2563eb4d}.clock-label{letter-spacing:.08em;opacity:.9;margin:0;font-size:24px;font-weight:900}.clock-time{letter-spacing:-.06em;font-size:96px;line-height:1;display:block}.start-time{background:#ffffff29;border-radius:999px;margin:10px 0 0;padding:12px 20px;font-size:30px;font-weight:900}.home-grid{grid-template-columns:1fr 1fr;gap:18px;display:grid}.notice-card{padding:24px}.notice-card h3{margin-bottom:16px;font-size:20px}.notice-card:last-child{grid-column:1/-1}.large-text{margin:0;font-size:20px;font-weight:800}.schedule-list{gap:12px;display:grid}.schedule-item{background:var(--surface-soft);border:1px solid var(--line);border-radius:14px;justify-content:space-between;padding:14px;display:flex}.content-panel{padding:24px}.section-title-row{justify-content:space-between;align-items:flex-start;gap:20px;margin-bottom:20px;display:flex}.section-title-row h2{margin-bottom:8px;font-size:28px}.section-title-row p{color:var(--muted);margin-bottom:0}.search-panel{background:var(--surface-soft);border:1px solid var(--line);border-radius:18px;gap:18px;margin-bottom:20px;padding:20px;display:grid}.radio-group,.option-row{flex-wrap:wrap;align-items:center;gap:20px;display:flex}.radio-group>span{color:#334155;font-weight:900}.radio-group label,.option-row label{align-items:center;gap:8px;font-weight:800;display:inline-flex}.radio-group input,.option-row input{width:16px;height:16px;box-shadow:none}.search-grid{grid-template-columns:2fr 1fr 1fr 1fr}.info-strip{background:var(--warning-soft);color:var(--warning);border-radius:14px;margin-bottom:18px;padding:14px 18px;font-weight:800}.table-wrap,.timetable-wrap{border:1px solid var(--line);background:var(--surface);border-radius:18px;overflow:auto}.course-table,.timetable{border-collapse:collapse;width:100%;font-size:14px}.course-table th,.course-table td,.timetable th,.timetable td{border-bottom:1px solid var(--line);text-align:center;vertical-align:middle;padding:13px 12px}.course-table thead th,.timetable thead th{z-index:1;color:#1e3a8a;background:#eef4ff;font-weight:900;position:sticky;top:0}.course-table tbody tr:hover{background:#f8fbff}.course-table tbody tr:last-child td,.timetable tbody tr:last-child td,.timetable tbody tr:last-child th{border-bottom:0}.course-name{font-weight:900;text-align:left!important}.row-enrolled{background:var(--success-soft)}.type-badge{border-radius:999px;justify-content:center;align-items:center;min-width:44px;height:26px;font-size:12px;font-weight:900;display:inline-flex}.type-badge.major{background:var(--primary-soft);color:#1e40af}.type-badge.general{color:#475569;background:#f1f5f9}.tooltip-wrap{display:inline-flex;position:relative}.tooltip-text{color:#fff;opacity:0;visibility:hidden;pointer-events:none;background:#0f172a;border-radius:12px;width:max-content;max-width:280px;padding:10px 12px;font-size:13px;line-height:1.4;transition:opacity .15s;position:absolute;bottom:calc(100% + 10px);left:50%;transform:translate(-50%);box-shadow:0 12px 24px #0f172a38}.tooltip-wrap:hover .tooltip-text,.tooltip-wrap:focus-within .tooltip-text{opacity:1;visibility:visible}.empty-cell{height:160px;color:var(--muted);font-weight:800}.summary-cards{grid-template-columns:repeat(2,minmax(120px,1fr));gap:10px;display:grid}.summary-cards>div{background:var(--surface-soft);border:1px solid var(--line);border-radius:16px;gap:6px;padding:14px 18px;display:grid}.summary-cards span{color:var(--muted);font-size:13px;font-weight:800}.summary-cards strong{font-size:20px}.timetable{table-layout:fixed}.timetable th:first-child{width:90px}.timetable tbody th{background:var(--surface-soft);color:#334155}.timetable td{background:#fff;height:86px}.filled-cell{background:#eff6ff!important}.schedule-block{color:#1e3a8a;background:#fff;border:1px solid #bfdbfe;border-radius:14px;gap:6px;padding:10px;display:grid}.schedule-block span{color:var(--muted);font-size:12px}@media (width<=1280px){body{min-width:1024px}.clock-time{font-size:78px}.search-grid{grid-template-columns:1fr 1fr}}