@import url('https://fonts.googleapis.com/css2?family=Be+Vietnam+Pro:wght@400;600;700&display=swap');

:root {
    --primary: #0078e8;
    --line: #d9dee6;
    --bg: #f2f6fc;
    --danger: #ff2330;
    --chip: #ff8b2c;
    --meeting-border: #2f7fff;
    --header-h: 68px;
    --left-col: 300px;
    --slot-w: 114px;
    --slot-h: 82px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Be Vietnam Pro", "Segoe UI", Tahoma, sans-serif;
    color: #16202a;
    background: linear-gradient(180deg, #f4f9ff 0%, #eff5fc 100%);
}

.topbar {
    height: var(--header-h);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 14px;
    background: #fff;
    border-bottom: 1px solid #d7dfe9;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.brand-logo {
    width: 54px;
    height: 54px;
    border-radius: 8px;
    border: 1px solid #e0e5ec;
    display: grid;
    place-items: center;
    color: #d1000c;
    font-size: 11px;
    font-weight: 700;
    line-height: 1.1;
    text-align: center;
    background: #fff;
}

.brand-title {
    color: #ff1f1f;
    font-size: 35px;
    font-weight: 700;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.tab {
    border: 1px solid #d4dce6;
    background: #fff;
    color: #2f4661;
    padding: 10px 14px;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
}

.tab-with-badge {
    position: relative;
    padding-right: 24px;
}

.badge-inline {
    top: -7px;
    right: -8px;
}

.tab.active {
    color: var(--primary);
    box-shadow: inset 0 0 0 1px #c8defa;
}

.icon-btn {
    width: 34px;
    height: 34px;
    border-radius: 4px;
    border: 1px solid #d4dce6;
    background: #fff;
    position: relative;
}

.badge {
    position: absolute;
    top: -8px;
    right: -7px;
    min-width: 18px;
    height: 18px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    font-size: 11px;
    color: #fff;
    background: #e11d2e;
    border: 2px solid #fff;
}

.user-pill {
    display: flex;
    align-items: center;
    gap: 8px;
    border: 1px solid #d4dce6;
    border-radius: 6px;
    padding: 6px 10px;
    font-size: 15px;
    font-weight: 600;
    color: #0a58ca;
    background: #fff;
}

.avatar {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, #61a6ff, #0f66da);
}

.layout {
    padding: 12px;
}

.notice {
    border-radius: 4px;
    padding: 10px 12px;
    margin-bottom: 10px;
    font-size: 14px;
    border: 1px solid;
    opacity: 1;
    transition: opacity 0.35s ease;
}

.notice.is-hiding {
    opacity: 0;
}

.notice.success { color: #14532d; background: #ecfdf3; border-color: #86efac; }
.notice.warning { color: #7c2d12; background: #fff7ed; border-color: #fdba74; }
.notice.danger { color: #991b1b; background: #fef2f2; border-color: #fca5a5; }

.toolbar {
    background: #fff;
    border: 1px solid #d7dfe9;
    border-bottom: 0;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px;
}

.schedule-viewport {
    display: block;
}

.control {
    height: 34px;
    border: 1px solid #bfd2eb;
    border-radius: 2px;
    display: flex;
    align-items: center;
    background: #fff;
    color: #1f3f5b;
    font-size: 14px;
}

.control input,
.control select,
.control button {
    height: 100%;
    border: 0;
    background: transparent;
    color: inherit;
    outline: 0;
}

.date-box {
    width: 170px;
    justify-content: space-between;
    padding: 0 8px;
}

.date-box input {
    width: 112px;
    text-align: center;
}

.date-box button {
    width: 24px;
    color: #1783f8;
    font-weight: 700;
    cursor: pointer;
}

.area-box {
    width: 104px;
    padding: 0 8px;
}

.zoom-btn {
    margin-left: auto;
    background: #e2e5e7;
    border-color: #227eee;
}

.register-btn {
    height: 34px;
    border: 0;
    border-radius: 2px;
    background: #1585ff;
    color: #fff;
    font-size: 14px;
    font-weight: 700;
    padding: 0 16px;
    cursor: pointer;
}

.register-btn:disabled,
.submit:disabled {
    cursor: not-allowed;
    background: #9ebbd8;
}

.board-wrap {
    position: relative;
}

.timeline-now {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--danger);
    z-index: 4;
    pointer-events: none;
    left: calc(var(--left-col) + (var(--left-minutes) * (var(--slot-w) / 60)));
}

.board {
    border: 1px solid #d7dfe9;
    background: #fff;
    overflow-x: auto;
    overflow-y: hidden;
}

.schedule-viewport:fullscreen {
    background: #eef5fd;
    padding: 0;
}

.schedule-viewport:fullscreen::backdrop {
    background: #eef5fd;
}

.schedule-viewport:fullscreen .toolbar {
    position: sticky;
    top: 0;
    z-index: 15;
    border-left: 0;
    border-right: 0;
    box-shadow: 0 8px 22px rgba(14, 34, 56, 0.08);
}

.schedule-viewport:fullscreen .board-wrap {
    min-height: calc(100vh - 52px);
}

.schedule-viewport:fullscreen .board {
    min-height: calc(100vh - 52px);
    border-left: 0;
    border-right: 0;
    border-bottom: 0;
}

.schedule {
    width: 100%;
    min-width: calc(var(--left-col) + 10 * 92px);
}

.grid-header,
.grid-row {
    display: grid;
    grid-template-columns: var(--left-col) repeat(10, minmax(92px, 1fr));
}

.cell,
.slot {
    border-right: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    min-height: var(--slot-h);
}

.slot {
    cursor: pointer;
}

.cell {
    display: flex;
    align-items: center;
    padding: 0 10px;
}

.cell.time {
    justify-content: center;
    font-weight: 600;
    color: #66798e;
}

.room-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.room-head-left,
.room-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

.dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #15af2d;
}

.kvt-chip {
    background: var(--chip);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    border-radius: 2px;
    padding: 2px 6px;
}

.room-name {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 17px;
}

.capacity {
    color: #445b73;
    font-weight: 600;
}

.meeting {
    position: absolute;
    top: 6px;
    height: calc(var(--slot-h) - 12px);
    border: 2px solid var(--meeting-border);
    background: #fff;
    border-radius: 5px;
    font-size: 12px;
    color: #1d2e40;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    padding: 4px 6px;
    overflow: auto;
    cursor: pointer;
    left: calc(var(--left-col) + (var(--left-minutes) * (var(--slot-w) / 60)) + 2px);
    width: calc((var(--duration-minutes) * (var(--slot-w) / 60)) - 4px);
}

.meeting-title,
.meeting-time {
    white-space: normal;
    word-break: break-word;
    width: 100%;
    line-height: 1.2;
}

.meeting-time {
    font-size: 11px;
    color: #4e6780;
    margin-top: 2px;
}

.meeting-pending {
    border-color: #f59e0b;
    background: #fffbeb;
}

.meeting-rejected {
    border-color: #ef4444;
    background: #fef2f2;
}

.meeting-approved {
    border-color: #2f7fff;
    background: #eff6ff;
}

.meeting-cancelled {
    border-color: #9ca3af;
    background: #f3f4f6;
    opacity: 0.6;
    text-decoration: line-through;
}

.meeting-hover-card {
    position: fixed;
    z-index: 60;
    width: min(320px, calc(100vw - 16px));
    background: #ffffff;
    border: 1px solid #d6e0ea;
    border-radius: 10px;
    box-shadow: 0 12px 28px rgba(14, 34, 56, 0.2);
    padding: 10px 12px;
    pointer-events: none;
    opacity: 0;
    transform: translateY(4px);
    transition: opacity 120ms ease, transform 120ms ease;
}

.meeting-hover-card.show {
    opacity: 1;
    transform: translateY(0);
}

.meeting-hover-card .hover-title {
    font-size: 14px;
    font-weight: 700;
    color: #17334e;
    margin-bottom: 8px;
    line-height: 1.35;
}

.meeting-hover-card .hover-row {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    font-size: 13px;
    line-height: 1.4;
    margin-top: 4px;
}

.meeting-hover-card .hover-row span {
    color: #597089;
}

.meeting-hover-card .hover-row strong {
    color: #17334e;
    font-weight: 600;
    text-align: right;
}

.login-page {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
}

.login-shell {
    width: min(900px, 100%);
    display: grid;
    grid-template-columns: 1fr 1fr;
    background: #ffffff;
    border: 1px solid #d7dfe9;
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 14px 36px rgba(16, 42, 67, 0.12);
}

.login-brand {
    background: linear-gradient(155deg, #e8f2ff 0%, #f6fbff 100%);
    padding: 36px 30px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.login-logo {
    height: 96px;
    width: auto;
    margin-bottom: 12px;
}

.login-brand h1 {
    margin: 0;
    font-size: 29px;
    color: #c81414;
    letter-spacing: 0.3px;
}

.login-brand p {
    margin: 8px 0 0;
    color: #3d5f7f;
    font-size: 16px;
}

.login-form-wrap {
    padding: 34px 30px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.login-form-wrap h2 {
    margin: 0 0 14px;
    font-size: 24px;
    color: #1f3f5b;
}

.login-remember {
    font-size: 14px;
    color: #2f4661;
}

.input-with-icon {
    position: relative;
    display: block;
}

.input-icon {
    position: absolute;
    top: 50%;
    left: 12px;
    width: 18px;
    height: 18px;
    transform: translateY(-50%);
    color: #5f7690;
    pointer-events: none;
}

.input-icon svg {
    display: block;
    width: 100%;
    height: 100%;
    fill: currentColor;
}

.field.has-icon {
    padding-left: 38px;
}

.login-submit {
    height: 40px;
    font-size: 15px;
    font-weight: 700;
}

.login-note {
    margin-top: 12px;
}

.auth-wrap,
.admin-wrap {
    max-width: 1200px;
    margin: 20px auto;
    background: #fff;
    border: 1px solid #d7dfe9;
    border-radius: 8px;
    padding: 16px;
}

.auth-card {
    max-width: 420px;
    margin: 60px auto;
    background: #fff;
    border: 1px solid #d7dfe9;
    border-radius: 8px;
    padding: 20px;
}

.auth-card h1,
.admin-title {
    margin: 0 0 12px;
    font-size: 22px;
}

.stack {
    display: grid;
    gap: 10px;
}

.btn {
    border: 1px solid #d4dce6;
    background: #fff;
    border-radius: 4px;
    padding: 8px 12px;
    cursor: pointer;
}

.btn-primary {
    background: #0a8cf8;
    border-color: #0a8cf8;
    color: #fff;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
}

.admin-table th,
.admin-table td {
    border: 1px solid #d7dfe9;
    padding: 8px;
    text-align: left;
    font-size: 14px;
}

.grid-two {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.modal {
    position: fixed;
    inset: 0;
    background: rgba(11, 22, 36, 0.45);
    display: none;
    align-items: center;
    justify-content: center;
    padding: 16px;
    z-index: 25;
}

.modal.open {
    display: flex;
}

.dialog {
    width: min(980px, 100%);
    max-height: calc(100vh - 36px);
    overflow: auto;
    background: #fff;
    border-radius: 6px;
    border: 1px solid #c6d4e7;
}

.dialog-head {
    height: 44px;
    background: #0a8cf8;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 14px;
    font-size: 28px;
    font-weight: 700;
}

.dialog-close {
    border: 0;
    background: transparent;
    color: #fff;
    font-size: 21px;
    cursor: pointer;
}

.dialog-body {
    padding: 12px 12px 16px;
}

.f-row {
    display: grid;
    grid-template-columns: 180px 1fr;
    gap: 8px;
    align-items: start;
    margin-bottom: 8px;
}

.f-label {
    font-size: 16px;
    font-weight: 700;
    line-height: 34px;
}

.req { color: #e61f2c; }

.f-inline {
    display: grid;
    grid-template-columns: 1fr 120px 1fr 120px;
    gap: 8px;
}

.field {
    height: 34px;
    border: 1px solid #cfdae9;
    border-radius: 2px;
    padding: 0 10px;
    font-size: 15px;
    width: 100%;
}

.field.icon {
    text-align: center;
}

.textarea {
    min-height: 80px;
    padding-top: 8px;
    resize: vertical;
}

.row-flex {
    display: flex;
    align-items: center;
    gap: 8px;
}

.online-wrap {
    font-size: 15px;
    font-weight: 600;
    color: #1e3347;
}

.check {
    width: 18px;
    height: 18px;
}

.hint {
    color: #0d8af6;
    font-size: 14px;
    font-weight: 600;
}

.submit-wrap {
    text-align: center;
    margin-top: 14px;
}

.submit {
    height: 40px;
    min-width: 120px;
    border: 0;
    border-radius: 4px;
    background: #0a8cf8;
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
}

.detail-dialog {
    width: min(760px, 100%);
}

.detail-grid {
    display: grid;
    grid-template-columns: 170px 1fr;
    gap: 10px 14px;
    font-size: 15px;
}

.detail-label {
    font-weight: 700;
    color: #20354a;
}

@media (max-width: 980px) {
    .brand-title { font-size: 23px; }
    .f-row { grid-template-columns: 1fr; }
    .f-label { line-height: 1.2; }
    .f-inline { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 760px) {
    :root {
        --left-col: 240px;
        --slot-w: 92px;
    }

    .topbar {
        height: auto;
        align-items: flex-start;
        flex-direction: column;
        gap: 8px;
        padding-top: 8px;
        padding-bottom: 8px;
    }

    .brand-title { font-size: 18px; }
    .toolbar { flex-wrap: wrap; }
    .zoom-btn {
        margin-left: 0;
    }
    .f-inline { grid-template-columns: 1fr; }

    .login-page {
        padding: 14px;
    }

    .login-shell {
        grid-template-columns: 1fr;
    }

    .login-brand,
    .login-form-wrap {
        padding: 20px 16px;
    }

    .login-brand h1 {
        font-size: 24px;
    }
}