/* Color palette */
:root {
    --color-lightest: #EFE7DB;
    --color-light: #E6D9C7;
    --color-medium: #A4B6B7;
    --color-dark: #8DA4A5;
    --color-darkest: #6D8B8C;
}

body {
    margin: 0;
    padding-top: 0px;
    font-family: "BeVietnamPro", system-ui, -apple-system, BlinkMacSystemFont;
    background: var(--color-lightest);
    color: #111;
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Background helix canvas */
#helix-bg {
    position: fixed;
    inset: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 0;
}

/* Frosted overlay over the squares */
#helix-frost {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    background: rgba(239, 231, 219, 0.18);
}

body > :not(#helix-bg):not(#helix-frost):not(.navbar) {
    position: relative;
    z-index: 0;
}

/* Helix controls */
#helix-controls {
    position: fixed;
    right: 16px;
    bottom: 16px;
    z-index: 2;
    background: rgba(239, 231, 219, 0.7);
    border: 1px solid rgba(109, 139, 140, 0.25);
    border-radius: 12px;
    padding: 12px;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    width: min(320px, calc(100vw - 32px));
    box-sizing: border-box;
}

#helix-controls .row {
    display: grid;
    grid-template-columns: 1fr 120px;
    gap: 10px;
    align-items: center;
    margin-top: 10px;
}

#helix-controls .row:first-of-type {
    margin-top: 0;
}

#helix-controls label {
    margin: 0;
    font-weight: 600;
    font-size: 12px;
}

#helix-controls input[type="number"] {
    width: 100%;
    padding: 8px 10px;
    box-sizing: border-box;
}

@font-face {
    font-family: "BeVietnamPro";
    src: url("/fonts/BeVietnamPro/BeVietnamPro-Regular.ttf") format("truetype");
    font-weight: 400;
    font-style: normal;
}

@font-face {
    font-family: "BeVietnamPro";
    src: url("/fonts/BeVietnamPro/BeVietnamPro-Italic.ttf") format("truetype");
    font-weight: 400;
    font-style: italic;
}

.error {
    color: #9c2f2f;
}

.success {
    color: #1e6b4c;
}

h1 {
    margin-top: 64px;
}

.qr-page-shell {
    max-width: 880px;
    margin: 0 auto;
    padding: 104px 24px 40px;
}

.qr-card {
    border: 1px solid rgba(109, 139, 140, 0.16);
    border-radius: 28px;
    background: rgba(255, 255, 255, 0.8);
    padding: 32px;
    box-shadow: 0 18px 48px rgba(109, 139, 140, 0.1);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
}

.qr-card h1 {
    margin: 0;
    font-size: clamp(32px, 4vw, 52px);
}

.qr-subtitle {
    margin: 12px 0 0;
    color: rgba(17, 17, 17, 0.68);
}

.qr-member {
    display: flex;
    align-items: center;
    gap: 18px;
    margin-top: 28px;
}

.qr-member h2 {
    margin: 0;
    font-size: 24px;
}

.qr-member p {
    margin: 6px 0 0;
    color: rgba(17, 17, 17, 0.64);
}

.qr-member-avatar {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid rgba(109, 139, 140, 0.25);
}

.qr-frame {
    position: relative;
    margin: 28px auto 0;
    width: fit-content;
    padding: 18px;
    border-radius: 28px;
    background: #fff;
    box-shadow: inset 0 0 0 1px rgba(109, 139, 140, 0.16);
}

.qr-code-mount {
    width: 320px;
    height: 320px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.qr-code-mount img,
.qr-code-mount canvas {
    display: block;
}

.qr-center-avatar-wrap {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
}

.qr-center-avatar {
    width: 68px;
    height: 68px;
    border-radius: 50%;
    object-fit: cover;
    border: 6px solid #fff;
    background: #fff;
    box-shadow: 0 8px 24px rgba(17, 17, 17, 0.14);
}

.qr-meta {
    margin-top: 22px;
    text-align: center;
}

.qr-countdown {
    margin: 0;
    font-weight: 700;
}

.qr-expiry {
    margin: 8px 0 0;
    color: rgba(17, 17, 17, 0.62);
}

.qr-fallback {
    padding: 24px;
    text-align: center;
    color: #9c2f2f;
}

.login-page-shell {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 24px 48px;
    box-sizing: border-box;
}

.login-card {
    width: min(100%, 460px);
    border: 1px solid rgba(109, 139, 140, 0.2);
    border-radius: 28px;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow: 0 22px 55px rgba(109, 139, 140, 0.14);
    padding: 36px 32px 28px;
    text-align: center;
}

.login-eyebrow {
    margin: 0 0 10px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-darkest);
}

.login-card h1 {
    margin: 0;
    font-size: clamp(34px, 5vw, 48px);
    line-height: 1;
}

.login-subtitle {
    margin: 14px auto 0;
    max-width: 320px;
    color: rgba(17, 17, 17, 0.68);
    line-height: 1.55;
}

.google-login-btn {
    margin-top: 28px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    width: 100%;
    box-sizing: border-box;
    padding: 14px 18px;
    border-radius: 999px;
    border: 1px solid rgba(17, 17, 17, 0.12);
    background: #fff;
    color: #111;
    text-decoration: none;
    font-weight: 700;
    box-shadow: 0 10px 22px rgba(17, 17, 17, 0.08);
    transition: transform 0.16s ease, box-shadow 0.16s ease, border-color 0.16s ease;
}

.google-login-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 14px 28px rgba(17, 17, 17, 0.1);
    border-color: rgba(109, 139, 140, 0.35);
}

.google-login-btn__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    flex: 0 0 22px;
}

.google-login-btn__icon svg {
    width: 100%;
    height: 100%;
    display: block;
}

.login-home-link {
    margin-top: 18px;
    display: inline-block;
    color: rgba(17, 17, 17, 0.72);
    text-decoration: none;
    font-size: 14px;
}

.login-home-link:hover {
    text-decoration: underline;
}

.account-page-shell {
    max-width: 1100px;
    margin: 0 auto;
    padding: 104px 24px 40px;
}

.site-footer {
    margin-top: auto;
    padding: 32px 24px 24px;
    border-top: 1px solid rgba(109, 139, 140, 0.16);
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    width: 100%;
    box-sizing: border-box;
}

.site-footer__main {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 32px;
}

.site-footer__columns {
    display: grid;
    gap: 24px;
    flex: 1;
}

.site-footer__columns--national {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.site-footer__columns--university {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.site-footer__column {
    min-width: 0;
}

.site-footer__title {
    margin: 0 0 14px;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.site-footer__links,
.site-footer__contact {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.site-footer__links--directory {
    display: grid;
    grid-auto-flow: column;
    grid-template-rows: repeat(5, auto);
    grid-auto-columns: minmax(160px, max-content);
    column-gap: 28px;
    row-gap: 10px;
    align-content: start;
}

.site-footer__links a,
.site-footer__contact a,
.site-footer__legal-links a {
    color: #111;
    text-decoration: none;
}

.site-footer__links a:hover,
.site-footer__contact a:hover,
.site-footer__legal-links a:hover {
    text-decoration: underline;
}

.site-footer__palette {
    --swatch-gap: 15px;
    --swatch-size: 40px;
    display: grid;
    grid-template-columns: repeat(3, var(--swatch-size));
    grid-template-rows: repeat(3, var(--swatch-size));
    justify-content: center;
    align-content: center;
    gap: var(--swatch-gap);
    width: min(100%, 150px);
    max-width: 150px;
    aspect-ratio: 1 / 1;
    flex: 0 0 auto;
    flex-shrink: 0;
}

.site-footer__swatch {
    width: 100%;
    height: 100%;
    border: 1px solid rgba(17, 17, 17, 0.22);
    background: rgba(164, 182, 183, 0.35);
    cursor: pointer;
    transition: transform 0.16s ease, background-color 0.16s ease;
    padding: 0;
}

.site-footer__swatch:hover {
    transform: translateY(-1px);
    background: rgba(109, 139, 140, 0.45);
}

.site-footer__swatch:focus-visible,
.site-footer__socials a:focus-visible {
    outline: 2px solid rgba(17, 17, 17, 0.55);
    outline-offset: 2px;
}

.site-footer__divider {
    height: 2px;
    margin: 24px 0 16px;
    background: rgba(17, 17, 17, 0.12);
}

.site-footer__legal {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    font-size: 12px;
}

.site-footer__copyright {
    margin: 0;
}

.site-footer__legal-links {
    display: flex;
    align-items: center;
    gap: 18px;
}

.site-footer__socials {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 4px;
}

.site-footer__socials a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border: 1px solid rgba(17, 17, 17, 0.18);
    border-radius: 999px;
}

.site-footer__socials a:hover {
    background: rgba(109, 139, 140, 0.12);
}

.site-footer__socials svg {
    width: 14px;
    height: 14px;
    fill: currentColor;
}

@media (max-width: 900px) {
    .site-footer__main {
        flex-direction: column;
    }

    .site-footer__columns--national,
    .site-footer__columns--university {
        grid-template-columns: 1fr;
    }

    .site-footer__palette {
        --swatch-size: calc((100% * 4) / 15);
        --swatch-gap: calc((100% - (var(--swatch-size) * 3)) / 2);
        width: 100%;
        align-self: auto;
        max-width: none;
    }

    .site-footer__links--directory {
        display: flex;
        flex-direction: column;
        gap: 10px;
    }
}

@media (max-width: 640px) {
    .site-footer {
        padding-inline: 16px;
    }

    .site-footer__legal {
        flex-direction: column;
        align-items: flex-start;
    }
}

.account-loading {
    font-size: 18px;
}

.account-card {
    border: 1px solid rgba(109, 139, 140, 0.2);
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.78);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow: 0 20px 50px rgba(109, 139, 140, 0.12);
    padding: 32px;
}

.account-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 28px;
}

.account-identity {
    display: flex;
    align-items: center;
    gap: 20px;
}

.account-avatar {
    width: 88px;
    height: 88px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid rgba(109, 139, 140, 0.28);
}

.account-eyebrow {
    margin: 0 0 8px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-darkest);
}

.account-header h1 {
    margin: 0;
    font-size: clamp(32px, 4vw, 48px);
    line-height: 1;
}

.account-subtitle {
    margin: 10px 0 0;
    color: rgba(17, 17, 17, 0.68);
}

.account-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.account-primary-btn,
.account-secondary-btn {
    border-radius: 999px;
    padding: 12px 18px;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
}

.account-primary-btn {
    border: none;
    background: var(--color-darkest);
    color: #fff;
}

.account-secondary-btn {
    border: 1px solid rgba(109, 139, 140, 0.45);
    background: transparent;
    color: #111;
}

.account-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px 20px;
}

.account-field {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 16px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.68);
    border: 1px solid rgba(109, 139, 140, 0.12);
}

.account-label {
    margin: 0;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: rgba(17, 17, 17, 0.6);
}

.account-value {
    margin: 0;
    font-size: 16px;
    line-height: 1.5;
}

.account-input {
    width: 100%;
    box-sizing: border-box;
    border-radius: 12px;
    border: 1px solid rgba(109, 139, 140, 0.24);
    background: #fff;
    padding: 12px 14px;
    font: inherit;
    color: #111;
}

.account-input-locked {
    background: rgba(109, 139, 140, 0.08);
    color: rgba(17, 17, 17, 0.7);
}

.account-help {
    font-size: 12px;
    color: rgba(17, 17, 17, 0.56);
}

.account-form-message {
    margin: 18px 0 0;
    font-weight: 600;
}

@media (max-width: 768px) {
    .login-page-shell {
        padding: 96px 16px 24px;
    }

    .login-card {
        padding: 28px 22px 24px;
    }

    .qr-page-shell {
        padding: 92px 16px 24px;
    }

    .qr-card {
        padding: 22px;
    }

    .qr-member {
        flex-direction: column;
        align-items: flex-start;
    }

    .qr-code-mount {
        width: min(100%, 280px);
        height: min(100vw - 120px, 280px);
    }

    .qr-center-avatar {
        width: 56px;
        height: 56px;
    }

    .account-page-shell {
        padding: 92px 16px 24px;
    }

    .account-card {
        padding: 22px;
    }

    .account-header,
    .account-identity {
        flex-direction: column;
        align-items: flex-start;
    }

    .account-actions {
        width: 100%;
    }

    .account-primary-btn,
    .account-secondary-btn {
        flex: 1;
    }

    .account-grid {
        grid-template-columns: 1fr;
    }
}

@font-face {
    font-family: "BeVietnamPro";
    src: url("/fonts/BeVietnamPro/BeVietnamPro-Bold.ttf") format("truetype");
    font-weight: 700;
    font-style: normal;
}

@font-face {
    font-family: "BeVietnamPro";
    src: url("/fonts/BeVietnamPro/BeVietnamPro-BoldItalic.ttf") format("truetype");
    font-weight: 700;
    font-style: italic;
}

/* Admin CSS */
.admin-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 32px;
}

.admin-shell {
    display: flex;
    flex-direction: column;
    gap: 24px;
    padding-top: 64px;
}

.admin-heading h1 {
    margin: 0;
    font-size: clamp(32px, 4vw, 52px);
}

.admin-eyebrow {
    margin: 0 0 10px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-darkest);
}

.admin-subtitle {
    margin: 10px 0 0;
    max-width: 720px;
    color: rgba(17, 17, 17, 0.68);
}

.admin-subnav {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 8px;
    width: fit-content;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.75);
    border: 1px solid rgba(109, 139, 140, 0.18);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
}

.admin-subnav-btn {
    border: none;
    background: transparent;
    color: #111;
    font: inherit;
    font-weight: 700;
    padding: 10px 16px;
    border-radius: 999px;
    cursor: pointer;
}

.admin-subnav-btn.active {
    background: var(--color-darkest);
    color: #fff;
}

.admin-workspace {
    display: block;
}

.admin-callout,
.attendance-event-card,
.attendance-status-card {
    border-radius: 24px;
    border: 1px solid rgba(109, 139, 140, 0.16);
    background: rgba(255, 255, 255, 0.76);
    padding: 24px;
    box-shadow: 0 16px 40px rgba(109, 139, 140, 0.08);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.admin-callout h2,
.attendance-event-card h2,
.attendance-status-card h2 {
    margin: 0 0 10px;
}

.attendance-shell {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
    gap: 20px;
}

.attendance-column {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.attendance-flow-list {
    margin: 0;
    padding-left: 18px;
    line-height: 1.7;
}

.attendance-label {
    display: block;
    margin-top: 8px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: rgba(17, 17, 17, 0.62);
}

.attendance-select {
    width: 100%;
    box-sizing: border-box;
    margin-top: 8px;
    padding: 12px 14px;
    border-radius: 14px;
    border: 1px solid rgba(109, 139, 140, 0.24);
    background: #fff;
    font: inherit;
}

.attendance-actions {
    display: flex;
    gap: 12px;
    margin-top: 16px;
}

.attendance-event-meta,
.attendance-event-note {
    margin: 0;
    line-height: 1.6;
}

.attendance-event-note {
    margin-top: 14px;
    color: rgba(17, 17, 17, 0.62);
}

.attendance-status-ok {
    font-weight: 700;
    color: #1e6b4c;
}

.attendance-scanner-shell {
    margin-top: 18px;
    min-height: 320px;
    border-radius: 20px;
    overflow: hidden;
    background: rgba(109, 139, 140, 0.08);
    border: 1px dashed rgba(109, 139, 140, 0.24);
    display: flex;
    align-items: center;
    justify-content: center;
}

.attendance-scanner-shell video {
    width: 100%;
    height: auto;
    display: block;
}

.attendance-scanner-shell-disabled {
    color: rgba(17, 17, 17, 0.54);
}

.attendance-preview-card {
    min-height: 280px;
}

.attendance-preview-placeholder h2 {
    margin: 0 0 10px;
}

.attendance-preview-placeholder p {
    margin: 0;
    color: rgba(17, 17, 17, 0.62);
}

.attendance-preview-body {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.attendance-preview-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.attendance-preview-badge {
    display: inline-flex;
    align-items: center;
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.02em;
}

.attendance-preview-badge-ready,
.attendance-preview-badge-recorded {
    background: rgba(30, 107, 76, 0.12);
    color: #1e6b4c;
}

.attendance-preview-badge-warning {
    background: rgba(180, 121, 14, 0.12);
    color: #8a5b00;
}

.attendance-preview-badge-error {
    background: rgba(167, 38, 38, 0.12);
    color: #a72626;
}

.attendance-preview-identity {
    display: flex;
    align-items: center;
    gap: 16px;
}

.attendance-preview-avatar {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid rgba(109, 139, 140, 0.24);
}

.attendance-preview-identity h2 {
    margin: 0;
}

.attendance-preview-meta {
    margin: 0;
    color: rgba(17, 17, 17, 0.62);
}

.attendance-preview-message {
    margin: 0;
    font-weight: 700;
    line-height: 1.5;
}

.attendance-preview-summary h2 {
    margin: 0 0 8px;
}

.attendance-preview-helper {
    margin: 8px 0 0;
    color: rgba(17, 17, 17, 0.62);
    line-height: 1.5;
}

.attendance-scan-actions {
    display: flex;
    gap: 12px;
}

.admin-controls {
    margin-bottom: 24px;
}

.admin-controls select {
    padding: 8px 12px;
    font-size: 16px;
}

.placeholder {
    color: #666;
    font-style: italic;
}

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

.admin-table-wrap {
    overflow: auto;
}

.admin-table th, .admin-table td {
    padding: 12px;
    border-bottom: 1px solid #ddd;
    text-align: left;
}

.admin-table th {
    background: #f5f5f5;
    font-weight: 600;
}

.admin-table tr:hover {
    background: #fafafa;
}

.sort-btn {
    background: none;
    border: none;
    font: inherit;
    cursor: pointer;
    padding: 0;
}

.sort-btn:hover {
    text-decoration: underline;
}

.modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.modal.hidden {
    display: none;
}

.modal-content {
    background: white;
    padding: 24px;
    border-radius: 8px;
    width: min(720px, calc(100vw - 48px));
    max-height: calc(100vh - 96px);
    overflow: auto;
}

.modal-content label {
    display: block;
    margin-top: 12px;
    font-weight: 600;
    font-size: 12px;
}

.modal-content input,
.modal-content select {
    width: 100%;
    padding: 8px 10px;
    margin-top: 6px;
    box-sizing: border-box;
}

.modal-actions {
    display: flex;
    gap: 12px;
    margin-top: 18px;
}

.hint {
    margin-top: 12px;
    color: #666;
    font-size: 12px;
}

@media (max-width: 768px) {
    .admin-container {
        padding: 20px 16px;
    }

    .admin-shell {
        padding-top: 58px;
    }

    .admin-subnav {
        width: 100%;
        justify-content: space-between;
    }

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

    .attendance-actions {
        flex-direction: column;
    }

    .attendance-preview-identity {
        flex-direction: column;
        align-items: flex-start;
    }

    .attendance-scan-actions {
        flex-direction: column;
    }
}

/* Filter modal */
.filter-header {
    display: flex;
    align-items: center;
    gap: 12px;
    justify-content: space-between;
}

.filter-body {
    margin-top: 12px;
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
}

.filter-attr {
    border: 1px solid #eee;
    border-radius: 8px;
    padding: 12px;
}

.filter-attr-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    font-weight: 700;
    font-size: 13px;
}

.filter-values {
    margin-top: 10px;
    max-height: 220px;
    overflow: auto;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 8px;
}

.filter-values label {
    margin: 0;
    font-weight: 400;
    font-size: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.filter-chip {
    border: 1px solid #eee;
    border-radius: 8px;
    padding: 6px 10px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    user-select: none;
}

.filter-chip input[type="checkbox"] {
    margin: 0;
}