/* ==========================================================================
   VARIABLES
   ========================================================================== */

* {
    box-sizing: border-box;
}

:root {
    --tracks-navy: #0c1033;
    --tracks-text: #2d2d2d;
    --tracks-bg: #f5f5f5;
    --tracks-border: #dcdcdc;
    --tracks-white: #ffffff;
    --tracks-soft: #f7f8fb;
    --tracks-soft-blue: #eef1fb;
    --tracks-muted: #6d7280;
    --tracks-success: #2e7d32;
    --tracks-danger: #c62828;
    --tracks-warning: #d39b22;
}

/* ==========================================================================
   BASE
   ========================================================================== */

body {
    margin: 0;
    font-family: 'Poppins', Arial, sans-serif;
    background: var(--tracks-bg);
    color: var(--tracks-text);
}

h1,
h2,
h3 {
    margin-top: 0;
    color: var(--tracks-navy);
    font-weight: 600;
}

h1 {
    margin-bottom: 24px;
    font-size: 32px;
}

h2 {
    margin-bottom: 18px;
}

p {
    line-height: 1.6;
}

.page-intro {
    margin: 0;
    color: var(--tracks-text);
}

/* ==========================================================================
   LAYOUT
   ========================================================================== */

.page {
    max-width: 1200px;
    margin: 40px auto;
    padding: 0 20px;
}

.card {
    background: var(--tracks-white);
    border: 1px solid var(--tracks-border);
    padding: 30px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

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

.page-heading-row h1 {
    margin-bottom: 6px;
}

/* ==========================================================================
   BRAND HEADER
   ========================================================================== */

.brand-header {
    background: var(--tracks-white);
    border-bottom: 1px solid var(--tracks-border);
    padding: 18px 0;
    margin-bottom: 30px;
}

.brand-header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    gap: 20px;
}

.brand-logo {
    max-height: 54px;
    width: auto;
    display: block;
}

.brand-logo-dark {
    display: none;
}

.brand-title-wrap {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.brand-title {
    font-size: 24px;
    font-weight: 600;
    color: var(--tracks-navy);
    line-height: 1.2;
}

.brand-subtitle {
    font-size: 14px;
    color: var(--tracks-text);
}

/* ==========================================================================
   NAVIGATION
   ========================================================================== */

.top-links {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    margin-bottom: 30px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--tracks-border);
}

.top-links a {
    display: inline-flex;
    align-items: center;
    min-height: 38px;
    padding: 8px 12px;
    border: 0;
    border-radius: 6px;
    background: transparent;
    color: var(--tracks-navy);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: background 0.2s ease, color 0.2s ease;
}

.top-links a:hover,
.top-links a.current {
    background: var(--tracks-soft-blue);
    color: var(--tracks-navy);
}

.top-links a:last-child {
    margin-left: auto;
    color: var(--tracks-muted);
}

.top-links a:last-child:hover {
    background: #f3eeee;
    color: var(--tracks-danger);
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */

button,
.link-button,
.action-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 10px 14px;
    border: 1px solid var(--tracks-navy);
    background: var(--tracks-white);
    color: var(--tracks-navy);
    text-decoration: none;
    font-size: 15px;
    font-family: inherit;
    line-height: 1.2;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

button:hover,
.link-button:hover,
.action-link:hover {
    background: var(--tracks-navy);
    color: var(--tracks-white);
}

.actions,
.record-actions,
.staff-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.record-actions {
    margin-top: 18px;
}

.staff-actions {
    margin-top: 18px;
}

table .actions {
    gap: 6px;
}

table .link-button,
table .action-link,
table button {
    min-height: 32px;
    padding: 6px 9px;
    font-size: 13px;
}

.verify-button,
.search-button {
    height: 42px;
}

/* ==========================================================================
   FORMS
   ========================================================================== */

label {
    display: block;
    font-weight: 600;
    margin-bottom: 9px;
    color: var(--tracks-navy);
}

input,
textarea,
select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #bbb;
    font-size: 16px;
    font-family: inherit;
    background: #fff;
    color: var(--tracks-text);
}

textarea {
    min-height: 120px;
    resize: vertical;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 22px 24px;
}

.field {
    display: flex;
    flex-direction: column;
}

.field.full {
    grid-column: 1 / -1;
}

.card form:last-child,
.card .actions:last-child {
    margin-bottom: 0;
}

.form-grid + .actions,
.drop-zone + .actions,
.current-image + .actions {
    margin-top: 26px;
}

.checkbox-field {
    justify-content: flex-end;
}

.guarantee-field {
    align-self: end;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    min-height: 42px;
    margin: 0;
    padding: 10px 12px;
    border: 1px solid var(--tracks-border);
    background: var(--tracks-soft);
    color: var(--tracks-text);
    font-weight: 500;
    line-height: 1.4;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: auto;
    margin: 0;
    accent-color: var(--tracks-navy);
}

.drop-zone {
    position: relative;
    border: 2px dashed #b8bfdc;
    background: #f8f9fd;
    padding: 24px;
    text-align: center;
    transition: 0.2s ease;
    min-height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.drop-zone.dragover {
    border-color: var(--tracks-navy);
    background: #eef1fb;
}

.drop-zone input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

.drop-zone-text {
    pointer-events: none;
    color: var(--tracks-text);
    line-height: 1.5;
}

.current-image {
    margin-top: 14px;
}

.current-image img {
    max-width: 250px;
    height: auto;
    display: block;
    border: 1px solid #ccc;
    padding: 4px;
    background: #fff;
    margin-top: 8px;
}

/* ==========================================================================
   SEARCH
   ========================================================================== */

.search-form {
    display: flex;
    gap: 16px;
    align-items: flex-end;
    margin-bottom: 24px;
}

.search-form .search-field {
    flex: 1;
}

.search-field label {
    margin-bottom: 12px;
}

.summary {
    margin: 4px 0 18px;
}

.table-wrap {
    overflow-x: auto;
    margin-top: 18px;
}

/* ==========================================================================
   TABLES
   ========================================================================== */

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 1000px;
}

th,
td {
    border: 1px solid var(--tracks-border);
    padding: 12px 14px;
    text-align: left;
    vertical-align: top;
}

th {
    background: #eef1fb;
    color: var(--tracks-navy);
    font-weight: 600;
}

tr:nth-child(even) td {
    background: #fafafa;
}

tbody tr:hover td {
    background: #f4f6fc;
}

/* ==========================================================================
   MESSAGES AND STATUSES
   ========================================================================== */

.message {
    margin-bottom: 24px;
    padding: 14px 16px;
    background: #f2f4fa;
    border-left: 4px solid var(--tracks-navy);
}

.success-message,
.success {
    border-left-color: var(--tracks-success);
}

.error-message,
.warning {
    border-left-color: var(--tracks-danger);
}

.caution {
    border-left-color: #ef6c00;
}

.status {
    display: inline-block;
    padding: 6px 10px;
    border: 1px solid var(--tracks-navy);
    color: var(--tracks-navy);
    background: #fff;
    font-size: 14px;
    white-space: nowrap;
}

.guarantee-warning {
    border-color: var(--tracks-warning);
    border-left: 5px solid var(--tracks-warning);
    background: #fff8e6;
}

.guarantee-warning .detail-label {
    color: #7a5200;
}

/* ==========================================================================
   PUBLIC VERIFY
   ========================================================================== */

.record,
.result-box,
.details,
.empty,
.warning-box {
    border: 1px solid var(--tracks-border);
    background: #fafafa;
    padding: 20px;
}

.details-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px 24px;
    margin-top: 8px;
}

.detail {
    background: #fafafa;
    border: 1px solid #e3e3e3;
    padding: 14px 16px;
    line-height: 1.5;
}

.detail.full {
    grid-column: 1 / -1;
}

.detail-label {
    display: block;
    font-weight: 600;
    color: var(--tracks-navy);
    margin-bottom: 6px;
}

.image-gallery {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 8px;
}

.verify-image {
    width: 100%;
    max-width: 420px;
    height: auto;
    display: block;
    border: 1px solid #ccc;
    background: #fff;
    padding: 4px;
    user-select: none;
    -webkit-user-drag: none;
    pointer-events: auto;
}

/* ==========================================================================
   SETTINGS AND BACKUPS
   ========================================================================== */

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

.backup-grid {
    margin-top: 26px;
}

.settings-card,
.settings-card-button,
.backup-card {
    border: 1px solid var(--tracks-border);
    background: var(--tracks-white);
    color: var(--tracks-text);
}

.settings-card,
.settings-card-button {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    gap: 8px;
    min-height: 132px;
    padding: 20px;
    text-decoration: none;
    transition: border-color 0.2s ease, transform 0.2s ease, background 0.2s ease;
}

.settings-card:hover,
.settings-card-button:hover {
    border-color: var(--tracks-navy);
    background: var(--tracks-soft);
    color: var(--tracks-text);
    transform: translateY(-1px);
}

.settings-card strong,
.settings-card-button strong {
    display: block;
    color: var(--tracks-navy);
    font-size: 18px;
}

.settings-card span,
.settings-card-button span {
    display: block;
    line-height: 1.5;
}

.settings-card-form {
    display: flex;
    margin: 0;
}

.settings-card-button {
    box-sizing: border-box;
    width: 100%;
    cursor: pointer;
    align-items: flex-start;
    justify-content: flex-start;
    font-family: inherit;
    text-align: left;
}

.settings-card-action {
    margin-top: auto;
    color: var(--tracks-navy);
    font-weight: 600;
}

.backup-card {
    padding: 22px;
}

.backup-card h2 {
    margin-bottom: 10px;
}

.backup-card p {
    margin-top: 0;
    line-height: 1.6;
}

.backup-card form {
    margin-top: 22px;
}

.backup-note {
    font-size: 14px;
}

/* ==========================================================================
   STAFF ACCOUNTS
   ========================================================================== */

.staff-list {
    display: grid;
    gap: 18px;
}

.staff-card {
    padding: 20px;
    border: 1px solid var(--tracks-border);
    background: var(--tracks-white);
}

.staff-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 20px;
}

.staff-card h2 {
    margin-bottom: 5px;
    font-size: 21px;
}

.staff-username {
    font-size: 14px;
}

.staff-badges {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 8px;
}

.staff-role,
.staff-status {
    display: inline-block;
    padding: 6px 10px;
    border: 1px solid var(--tracks-border);
    font-size: 13px;
    white-space: nowrap;
}

.staff-status.is-active {
    border-color: var(--tracks-success);
    color: var(--tracks-success);
}

.staff-status.is-inactive {
    border-color: var(--tracks-danger);
    color: var(--tracks-danger);
}

.staff-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 25px;
    margin-top: 18px;
    padding-top: 16px;
    border-top: 1px solid var(--tracks-border);
    font-size: 14px;
}

.staff-meta-label {
    display: block;
    margin-bottom: 3px;
    font-weight: 600;
    color: var(--tracks-navy);
}

.staff-actions-placeholder {
    font-size: 13px;
    color: #777;
}

/* ==========================================================================
   ABOUT
   ========================================================================== */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.stat-card {
    border: 1px solid var(--tracks-border);
    background: var(--tracks-white);
    padding: 24px;
    text-align: center;
}

.stat-title {
    display: block;
    font-weight: 600;
    margin-bottom: 18px;
}

.stat-number {
    display: block;
    font-size: 34px;
    font-weight: 700;
    color: var(--tracks-navy);
}

.stat-user {
    display: block;
    font-size: 20px;
    font-weight: 600;
}

.stat-role {
    display: block;
    margin-top: 8px;
    opacity: 0.75;
}

.about-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

.about-table th,
.about-table td {
    padding: 14px;
    border-bottom: 1px solid var(--tracks-border);
    text-align: left;
}

.about-table th {
    width: 180px;
}

.about-footer {
    margin-top: 50px;
    text-align: center;
    line-height: 2;
    opacity: 0.8;
}

/* ==========================================================================
   DARK MODE
   ========================================================================== */

body.theme-dark {
    --tracks-bg: #10121a;
    --tracks-white: #1a1d29;
    --tracks-text: #e6e7ec;
    --tracks-border: #383d50;
    --tracks-soft: #151824;
    --tracks-soft-blue: #272b3c;
    --tracks-muted: #aeb1bd;

    background: var(--tracks-bg);
    color: var(--tracks-text);
}

body.theme-dark .brand-header,
body.theme-dark .card,
body.theme-dark .record,
body.theme-dark .result-box,
body.theme-dark .details,
body.theme-dark .detail,
body.theme-dark .empty,
body.theme-dark .warning-box,
body.theme-dark .settings-card,
body.theme-dark .settings-card-button,
body.theme-dark .backup-card,
body.theme-dark .staff-card,
body.theme-dark .stat-card {
    background: var(--tracks-white);
    color: var(--tracks-text);
    border-color: var(--tracks-border);
}

body.theme-dark h1,
body.theme-dark h2,
body.theme-dark h3,
body.theme-dark label,
body.theme-dark .detail-label,
body.theme-dark .brand-title,
body.theme-dark .settings-card strong,
body.theme-dark .settings-card-button strong,
body.theme-dark .staff-meta-label {
    color: #f1f2f8;
}

body.theme-dark .brand-subtitle,
body.theme-dark .drop-zone-text,
body.theme-dark .summary {
    color: #c6c8d2;
}

body.theme-dark .brand-logo-light {
    display: none;
}

body.theme-dark .brand-logo-dark {
    display: block;
}

body.theme-dark input,
body.theme-dark textarea,
body.theme-dark select {
    background: #121520;
    color: #f1f2f8;
    border-color: #454b61;
}

body.theme-dark input::placeholder,
body.theme-dark textarea::placeholder {
    color: #9297aa;
}

body.theme-dark .drop-zone {
    background: #151824;
    border-color: #555d78;
}

body.theme-dark .drop-zone.dragover {
    background: #202538;
    border-color: #aeb7dc;
}

body.theme-dark .message {
    background: #24283a;
    color: #f1f2f8;
    border-left-color: #919bc8;
}

body.theme-dark th {
    background: #272b3c;
    color: #ffffff;
    border-color: var(--tracks-border);
}

body.theme-dark td {
    background: #1a1d29;
    color: var(--tracks-text);
    border-color: var(--tracks-border);
}

body.theme-dark tr:nth-child(even) td {
    background: #202330;
}

body.theme-dark tbody tr:hover td {
    background: #2a2e40;
}

body.theme-dark .status {
    background: #151824;
    color: #f1f2f8;
    border-color: #69718e;
}

body.theme-dark button,
body.theme-dark .link-button,
body.theme-dark .action-link {
    background: #1a1d29;
    color: #f1f2f8;
    border-color: #747c9c;
}

body.theme-dark button:hover,
body.theme-dark .link-button:hover,
body.theme-dark .action-link:hover {
    background: #f1f2f8;
    color: #0c1033;
}

body.theme-dark .top-links a {
    color: #f1f2f8;
}

body.theme-dark .top-links a:hover,
body.theme-dark .top-links a.current {
    background: #272b3c;
    color: #ffffff;
}

body.theme-dark .top-links a:last-child {
    color: #c6c8d2;
}

body.theme-dark .top-links a:last-child:hover {
    background: #35252b;
    color: #ffb4b4;
}

body.theme-dark .checkbox-label {
    background: #151824;
    border-color: #454b61;
    color: #f1f2f8;
}

body.theme-dark .settings-card-action {
    color: #ffffff;
}

body.theme-dark .settings-card-button:hover {
    background: #272b3c;
    color: #f1f2f8;
    border-color: #747c9c;
}

body.theme-dark .settings-card-button:hover strong,
body.theme-dark .settings-card-button:hover span,
body.theme-dark .settings-card-button:hover .settings-card-action {
    color: #ffffff;
}

body.theme-dark .current-image img,
body.theme-dark .verify-image {
    background: #121520;
    border-color: #454b61;
}

body.theme-dark .staff-actions-placeholder {
    color: #aeb1bd;
}

body.theme-dark .staff-status.is-active {
    color: #7ed987;
    border-color: #4fa85a;
}

body.theme-dark .staff-status.is-inactive {
    color: #ff8b8b;
    border-color: #d25d5d;
}

body.theme-dark .guarantee-warning {
    background: #332916;
    border-color: #c4932d;
    border-left-color: #c4932d;
    color: #f7e8bd;
}

body.theme-dark .guarantee-warning .detail-label {
    color: #ffd978;
}

body.theme-dark .stat-number {
    color: #ffffff;
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */

@media (max-width: 700px) {
    .page {
        margin: 24px auto;
        padding: 0 14px;
    }

    .card,
    .record,
    .result-box,
    .details,
    .empty,
    .warning-box {
        padding: 20px;
    }

    .brand-header-inner,
    .page-heading-row,
    .staff-card-header {
        align-items: flex-start;
        flex-direction: column;
    }

    .top-links a:last-child {
        margin-left: 0;
    }

    .form-grid,
    .details-grid,
    .settings-grid,
    .backup-grid {
        grid-template-columns: 1fr;
    }

    .field.full,
    .detail.full {
        grid-column: auto;
    }

    .search-form,
    .staff-search-form {
        flex-direction: column;
        align-items: stretch;
    }

    .verify-button,
    .search-button {
        width: 100%;
    }

    .staff-badges {
        justify-content: flex-start;
    }

    .verify-image {
        max-width: 100%;
    }
}