:root {
    --brand: #335de8;
    --brand-dark: #2548bd;
    --brand-soft: #edf1ff;
    --ink: #101828;
    --muted: #667085;
    --surface: #ffffff;
    --canvas: #f4f6fb;
    --line: #e4e7ec;
    --warning: #f5dd27;
    --danger: #ff0000;
    --success: #12a66a;
    --radius-sm: 10px;
    --radius: 16px;
    --radius-lg: 24px;
    --shadow-sm: 0 2px 8px rgba(16, 24, 40, .05);
    --shadow: 0 12px 32px rgba(16, 24, 40, .09);
    --bs-primary: #335de8;
    --bs-primary-rgb: 51, 93, 232;
    --bs-danger: #ff0000;
    --bs-danger-rgb: 255, 0, 0;
    --bs-warning: #f5dd27;
    --bs-warning-rgb: 245, 221, 39;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
    margin: 0;
    font-family: 'Kanit', sans-serif;
    color: var(--ink);
    background: var(--canvas) !important;
    -webkit-font-smoothing: antialiased;
}

body::selection {
    color: #fff;
    background: var(--brand);
}

a {
    color: var(--brand);
    text-underline-offset: 3px;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--ink);
    letter-spacing: -.025em;
}

.text-primary { color: var(--brand) !important; }
.text-danger { color: var(--danger) !important; }
.bg-primary { background-color: var(--brand) !important; }
.bg-danger { background-color: var(--danger) !important; }

.app-topbar {
    position: sticky;
    top: 0;
    z-index: 1030;
    min-height: 72px;
    color: #fff;
    background: rgba(20, 35, 84, .96) !important;
    border-bottom: 1px solid rgba(255, 255, 255, .1);
    box-shadow: 0 8px 30px rgba(16, 24, 40, .12);
    backdrop-filter: blur(14px);
}

.app-topbar .navbar-brand,
.app-topbar h1 {
    color: #fff;
}

.brand-mark {
    display: inline-grid;
    width: 40px;
    height: 40px;
    place-items: center;
    color: #fff;
    background: var(--brand);
    border-radius: 12px;
    box-shadow: 0 8px 18px rgba(51, 93, 232, .35);
}

.brand-eyebrow {
    display: block;
    color: rgba(255, 255, 255, .62);
    font-size: .68rem;
    font-weight: 500;
    letter-spacing: .12em;
    line-height: 1;
    text-transform: uppercase;
}

.brand-name {
    display: block;
    margin-top: 5px;
    color: #fff;
    font-size: 1.08rem;
    font-weight: 600;
    line-height: 1;
}

.page-shell {
    width: min(100% - 32px, 1540px);
    margin: 0 auto;
    padding: 32px 0 56px;
}

.page-heading {
    margin-bottom: 24px;
}

.page-heading h1,
.page-heading h2 {
    margin: 0;
    font-size: clamp(1.45rem, 2vw, 2rem);
    font-weight: 600;
}

.page-kicker {
    margin-bottom: 6px;
    color: var(--brand);
    font-size: .75rem;
    font-weight: 600;
    letter-spacing: .12em;
    text-transform: uppercase;
}

.page-description {
    margin: 7px 0 0;
    color: var(--muted);
    font-size: .92rem;
}

.card,
.form-container,
.calendar,
.content-panel {
    border: 1px solid rgba(228, 231, 236, .9) !important;
    border-radius: var(--radius) !important;
    background: var(--surface);
    box-shadow: var(--shadow-sm) !important;
}

.card-header {
    padding: 1rem 1.25rem;
    border-bottom-color: var(--line);
    border-radius: var(--radius) var(--radius) 0 0 !important;
}

.card-body {
    padding: 1.25rem;
}

.filter-card {
    position: relative;
    overflow: hidden;
}

.filter-card::before {
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    height: 3px;
    content: "";
    background: linear-gradient(90deg, var(--brand), #6f8cff);
}

.form-label,
label {
    margin-bottom: .45rem;
    color: #344054;
    font-size: .84rem;
    font-weight: 500;
}

.form-control,
.form-select,
select.form-control {
    min-height: 44px;
    padding: .62rem .8rem;
    color: var(--ink);
    background-color: #fff;
    border: 1px solid #d0d5dd;
    border-radius: var(--radius-sm);
    transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease;
}

.form-control::placeholder {
    color: #98a2b3;
}

.form-control:hover,
.form-select:hover {
    border-color: #98a2b3;
}

.form-control:focus,
.form-select:focus,
select.form-control:focus {
    color: var(--ink);
    background: #fff;
    border-color: var(--brand);
    box-shadow: 0 0 0 4px rgba(51, 93, 232, .12) !important;
}

textarea.form-control {
    min-height: 92px;
}

.btn {
    min-height: 42px;
    padding: .58rem .95rem;
    border-radius: 10px;
    font-weight: 500;
    transition: transform .16s ease, box-shadow .16s ease, background-color .16s ease;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn:active {
    transform: translateY(0);
}

.btn-primary {
    color: #fff;
    background: var(--brand);
    border-color: var(--brand);
    box-shadow: 0 5px 13px rgba(51, 93, 232, .2);
}

.btn-primary:hover,
.btn-primary:focus {
    background: var(--brand-dark);
    border-color: var(--brand-dark);
    box-shadow: 0 7px 17px rgba(51, 93, 232, .27);
}

.btn-outline-primary {
    color: var(--brand);
    border-color: #b7c5f8;
}

.btn-outline-primary:hover {
    color: #fff;
    background: var(--brand);
    border-color: var(--brand);
}

.btn-warning,
.btn-outline-warning:hover {
    color: #171717;
    background: var(--warning);
    border-color: var(--warning);
}

.btn-outline-warning {
    color: #776900;
    border-color: #d7c21e;
}

.btn-danger {
    color: #fff;
    background: var(--danger);
    border-color: var(--danger);
}

.btn-secondary {
    color: #344054;
    background: #fff;
    border-color: #d0d5dd;
}

.btn-secondary:hover {
    color: var(--ink);
    background: #f9fafb;
    border-color: #98a2b3;
}

.btn-success {
    background: var(--success);
    border-color: var(--success);
}

.btn-info {
    color: var(--brand);
    background: var(--brand-soft);
    border-color: #d5ddfb;
}

.btn-info:hover {
    color: #fff;
    background: var(--brand);
    border-color: var(--brand);
}

.btn-sm {
    min-height: 36px;
    padding: .4rem .65rem;
}

.btn-icon {
    display: inline-grid;
    width: 42px;
    min-width: 42px;
    padding: 0;
    place-items: center;
}

.action-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}

.segment-control {
    display: inline-flex;
    gap: 5px;
    padding: 5px;
    background: #e9edf6;
    border-radius: 13px;
}

.segment-control .btn {
    border: 0;
    box-shadow: none;
}

.segment-control .btn-info.text-white {
    color: #fff !important;
    background: var(--brand);
}

.table-responsive {
    overflow: hidden;
    overflow-x: auto;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm) !important;
}

.table {
    min-width: 900px;
    margin: 0;
    color: #344054;
    font-size: .9rem;
}

.table > :not(caption) > * > * {
    padding: .9rem 1rem;
    border-bottom-color: #eef0f4;
}

.table thead th,
.table thead th.bg-primary {
    color: #475467 !important;
    background: #f8f9fc !important;
    border-bottom: 1px solid #dfe3ea;
    font-size: .76rem;
    font-weight: 600;
    letter-spacing: .035em;
    text-transform: uppercase;
    white-space: nowrap;
}

.table tbody tr {
    transition: background-color .15s ease;
}

.table tbody tr:hover > * {
    background: #f8faff;
}

.table img {
    border: 2px solid #fff;
    border-radius: 12px;
    box-shadow: 0 0 0 1px var(--line), 0 4px 12px rgba(16, 24, 40, .08);
}

.pagination {
    gap: 5px;
}

.page-link {
    min-width: 38px;
    color: #475467;
    text-align: center;
    border: 1px solid var(--line);
    border-radius: 9px !important;
}

.active > .page-link,
.page-link.active {
    color: #fff;
    background: var(--brand);
    border-color: var(--brand);
}

.modal-content {
    overflow: hidden;
    border: 0;
    border-radius: 20px;
    box-shadow: 0 24px 70px rgba(16, 24, 40, .2);
}

.modal-header {
    padding: 1rem 1.25rem;
    background: #f8faff;
    border-bottom: 1px solid var(--line);
}

.modal-title {
    font-weight: 600;
}

.modal-header.bg-primary .modal-title,
.modal-header.bg-success .modal-title,
.modal-header.bg-danger .modal-title,
.modal-header.bg-dark .modal-title {
    color: #fff;
}

.modal-header.bg-primary .btn-close,
.modal-header.bg-success .btn-close,
.modal-header.bg-danger .btn-close,
.modal-header.bg-dark .btn-close {
    filter: invert(1) grayscale(100%) brightness(200%);
}

.modal-body {
    padding: 1.25rem;
}

.modal-footer {
    padding: 1rem 1.25rem;
    background: #fcfcfd;
    border-top-color: var(--line);
}

.alert {
    border: 0;
    border-left: 4px solid;
    border-radius: 12px;
}

.alert-danger {
    color: #a80000;
    background: #fff0f0;
    border-left-color: var(--danger);
}

.alert-warning {
    color: #665c00;
    background: #fffce3;
    border-left-color: var(--warning);
}

.alert-success {
    color: #08764a;
    background: #eafaf3;
    border-left-color: var(--success);
}

.login-page,
.public-form-page {
    position: relative;
    display: grid;
    min-height: 100vh;
    padding: 28px;
    place-items: center;
    overflow: hidden;
    background:
        radial-gradient(circle at 12% 15%, rgba(51, 93, 232, .2), transparent 28%),
        radial-gradient(circle at 88% 84%, rgba(245, 221, 39, .11), transparent 24%),
        #0f1834 !important;
}

.login-page::before,
.public-form-page::before {
    position: fixed;
    inset: 0;
    pointer-events: none;
    content: "";
    opacity: .32;
    background-image: linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
                      linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
    background-size: 42px 42px;
}

.login-container {
    position: relative;
    width: min(100%, 440px);
    padding: 38px;
    color: var(--ink);
    background: rgba(255, 255, 255, .98);
    border: 1px solid rgba(255, 255, 255, .7);
    border-radius: var(--radius-lg);
    box-shadow: 0 30px 80px rgba(0, 0, 0, .28);
    animation: panel-in .45s ease both;
}

.login-icon {
    display: grid;
    width: 58px;
    height: 58px;
    margin: 0 auto 18px;
    place-items: center;
    color: #fff;
    font-size: 1.35rem;
    background: var(--brand);
    border-radius: 17px;
    box-shadow: 0 12px 24px rgba(51, 93, 232, .28);
}

.login-title {
    margin-bottom: 4px;
    text-align: center;
    font-size: 1.55rem;
    font-weight: 600;
}

.login-subtitle {
    margin-bottom: 26px;
    color: var(--muted);
    text-align: center;
    font-size: .9rem;
}

.form-container {
    position: relative;
    width: min(100%, 760px);
    padding: clamp(20px, 4vw, 38px);
    animation: panel-in .45s ease both;
}

.section-title {
    display: flex;
    gap: 10px;
    align-items: center;
    margin: 28px 0 16px;
    color: var(--ink) !important;
    font-size: 1.05rem;
    font-weight: 600;
    text-decoration: none;
}

.section-title::before {
    width: 4px;
    height: 20px;
    content: "";
    background: var(--brand);
    border-radius: 4px;
}

.survey-page .card {
    overflow: hidden;
    box-shadow: var(--shadow) !important;
}

.survey-hero {
    padding: 26px 28px !important;
    background: linear-gradient(135deg, #294ec6, var(--brand)) !important;
}

.survey-hero h1 {
    color: #fff;
    font-size: clamp(1.45rem, 3vw, 2rem);
}

.score-options {
    display: grid !important;
    grid-template-columns: repeat(5, minmax(48px, 1fr));
    gap: 10px !important;
}

.score-option-label {
    width: 100%;
    min-width: 0 !important;
    border-color: #d0d5dd !important;
    border-radius: 12px !important;
    color: var(--brand) !important;
}

.score-option-label:hover {
    border-color: var(--brand) !important;
    box-shadow: 0 5px 15px rgba(51, 93, 232, .14) !important;
}

.score-option-input:checked + .score-option-label {
    color: #fff !important;
    background: var(--brand) !important;
    border-color: var(--brand) !important;
    box-shadow: 0 6px 16px rgba(51, 93, 232, .28) !important;
}

.calendar-page .calendar {
    overflow: hidden;
}

.calendar-page .time-col {
    background: #f8f9fc !important;
}

.calendar-page .day-header,
.calendar-page thead .time-col {
    color: #fff !important;
    background: #16234d !important;
    border-color: rgba(255,255,255,.1) !important;
}

.calendar-page .cell {
    border-color: var(--line) !important;
}

.calendar-page .tag {
    color: #fff;
    background: var(--brand) !important;
    border-radius: 9px;
    box-shadow: 0 5px 12px rgba(51, 93, 232, .2);
    transition: transform .15s ease, box-shadow .15s ease;
}

.calendar-page .tag:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 18px rgba(51, 93, 232, .25);
}

.calendar-page .tag.bg-secondary {
    background: #475467 !important;
}

.calendar-page .tag.bg-success {
    background: var(--success) !important;
}

.calendar-page .empty-placeholder {
    color: #667085;
    background: #fbfcff;
    border: 1px dashed #b6c3ec;
    border-radius: 9px;
    transition: color .15s ease, background .15s ease, border-color .15s ease;
}

.calendar-page .empty-placeholder:hover {
    color: var(--brand);
    background: var(--brand-soft);
    border-color: var(--brand);
}

@keyframes panel-in {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        scroll-behavior: auto !important;
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
    }
}

@media (max-width: 767.98px) {
    .page-shell {
        width: min(100% - 20px, 1540px);
        padding-top: 20px;
    }

    .app-topbar {
        min-height: 64px;
    }

    .card-body {
        padding: 1rem;
    }

    .login-page,
    .public-form-page {
        padding: 14px;
    }

    .login-container {
        padding: 28px 22px;
    }

    .form-container {
        border-radius: 18px !important;
    }

    .action-toolbar .btn {
        flex: 1 1 auto;
    }
}