:root{--app-primary:#173b67;--app-accent:#2f6fb2;--app-bg:#f4f7fb}body{background:var(--app-bg);color:#1d2939}.app-navbar{background:linear-gradient(135deg,var(--app-primary),var(--app-accent));box-shadow:0 4px 18px rgba(15,39,68,.18)}.card{border-radius:1rem}.date-jump{width:165px}.timetable-card{overflow:hidden}.timetable{min-width:1500px;table-layout:fixed}.timetable thead th{background:#eef3f8;color:#344054;text-align:center;font-size:.78rem;padding:.7rem .3rem;border-color:#dde5ee}.timetable td,.timetable tbody th{height:76px;padding:0;border-color:#e4eaf1}.room-col{width:160px;min-width:160px;padding:.9rem!important;background:#fff!important;z-index:3}.sticky-col{position:sticky;left:0}.free-cell{min-width:28px;background:#fff;position:relative}.free-cell:hover{background:#eef7ff}.free-cell a{position:absolute;inset:0}.reservation-cell{padding:4px!important;border-left:2px solid rgba(0,0,0,.08)!important}.reservation-button{border:0;background:transparent;width:100%;height:100%;padding:.45rem;text-align:left;font-size:.76rem;line-height:1.25;overflow:hidden}.reservation-button strong,.reservation-button span{display:block}.reservation-button span{font-size:.7rem;margin-top:.25rem;opacity:.8}.semester-0{background:#e8eef5}.semester-1{background:#d9f0ff}.semester-2{background:#e8ddff}.semester-3{background:#ffe0ec}.semester-4{background:#ffe5d2}.semester-5{background:#fff0bd}.semester-6{background:#e8f5c8}.semester-7{background:#d7f2dc}.semester-8{background:#d8f3ee}.semester-9{background:#dbe8ff}.login-page{min-height:100vh;display:grid;place-items:center;background:radial-gradient(circle at top right,#dcecff,transparent 40%),var(--app-bg);padding:1rem}.login-card{width:min(100%,440px);border-radius:1.25rem}.login-icon{width:64px;height:64px;border-radius:18px;margin:0 auto 1rem;display:grid;place-items:center;background:linear-gradient(135deg,var(--app-primary),var(--app-accent));color:#fff;font-size:1.7rem}@media(max-width:767px){.navbar-brand{font-size:1rem}.room-col{width:130px;min-width:130px}.timetable{min-width:1300px}}