/* ==========================================================================
   Krąg — Ustalanie Terminu Spotkania
   Mobile-first, clean, responsive styles inspired by legacy Google Sheets
   ========================================================================== */

:root {
    --bg-main: #f8fafc;
    --bg-card: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    
    /* Legacy Google Sheets Header Colors */
    --header-bg: #374151;
    --header-text: #ffffff;
    
    /* Status Colors */
    --status-ok-bg: #d9ead3;
    --status-ok-text: #274e13;
    --status-ok-border: #b6d7a8;
    
    --status-nie-bg: #f4cccc;
    --status-nie-text: #990000;
    --status-nie-border: #ea9999;
    
    /* Summary Badge Colors */
    --summary-full-bg: #b7e1cd;
    --summary-full-text: #0d5329;
    --summary-full-border: #85d1a8;
    
    --summary-partial-bg: #f1f5f9;
    --summary-partial-text: #334155;
    --summary-partial-border: #cbd5e1;

    /* Highlight Active Person */
    --active-col-bg: rgba(59, 130, 246, 0.05);
    --active-col-border: #3b82f6;

    /* Theme accents */
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --danger: #dc2626;
    --danger-hover: #b91c1c;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.5;
    font-size: 15px;
    overflow-x: hidden;
}

/* Kontener główny aplikacji */
.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ==========================================================================
   Nagłówek i Pasek Tożsamości
   ========================================================================== */

.app-header {
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 40;
}

.header-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 10px 16px;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
    gap: 8px;
}

.header-main {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    width: 100%;
}

.header-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
    margin: 0;
}

.save-status {
    position: absolute;
    right: 0;
    font-size: 12px;
    font-weight: 600;
    transition: opacity 0.2s ease;
}
.save-status.saving { color: #d97706; }
.save-status.saved { color: #16a34a; }
.save-status.error { color: #dc2626; }

/* Pasek tożsamości użytkownika w nagłówku */
.user-active-bar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background-color: #f1f5f9;
    border: 1px solid var(--border-color);
    border-radius: 9999px;
    padding: 4px 14px;
    font-size: 13px;
    transition: all 0.2s ease;
}

.user-active-bar.no-user {
    background-color: #fef2f2;
    border-color: #fecaca;
}

.user-active-info {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    color: var(--text-secondary);
}

.user-active-info strong {
    color: var(--primary);
    font-weight: 700;
}

.user-active-info .user-label-empty {
    color: #991b1b;
    font-weight: 500;
}

.btn-change-identity {
    background: none;
    border: none;
    color: var(--primary);
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
    padding: 2px 6px;
    border-radius: 4px;
    text-decoration: underline;
    transition: background-color 0.15s ease;
}

.btn-change-identity:hover {
    background-color: rgba(37, 99, 235, 0.08);
}

.btn-change-identity.btn-choose {
    background-color: var(--primary);
    color: #ffffff;
    text-decoration: none;
    padding: 3px 10px;
    border-radius: 9999px;
    font-size: 12px;
    font-weight: 600;
}

.btn-change-identity.btn-choose:hover {
    background-color: var(--primary-hover);
}

/* ==========================================================================
   Tabela Główna ze Sticky Columns i Headerem
   ========================================================================== */

.table-wrapper {
    flex: 1;
    overflow: hidden;
    position: relative;
    padding: 12px 16px;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

.table-scroll-area {
    width: 100%;
    overflow-x: auto;
    overflow-y: auto;
    max-height: calc(100vh - 210px);
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    position: relative;
    -webkit-overflow-scrolling: touch;
}

.terminarz-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 14px;
    min-width: 750px;
}

/* Nagłówki tabeli - zgodne z arkuszem kalkulacyjnym (#374151) */
.terminarz-table thead th {
    background-color: var(--header-bg);
    color: var(--header-text);
    font-weight: 700;
    text-align: center;
    vertical-align: middle;
    padding: 12px 8px;
    border-bottom: 2px solid #1f2937;
    border-right: 1px solid #4b5563;
    white-space: nowrap;
    position: sticky;
    top: 0;
    z-index: 20;
}

.terminarz-table thead th.sticky-col {
    z-index: 30; /* Lewy górny róg musi być ponad wszystkim */
    left: 0;
    text-align: center;
    padding-left: 6px;
    padding-right: 6px;
    background-color: var(--header-bg);
}

.terminarz-table thead th.sticky-col-2 {
    z-index: 30;
    left: 75px;
    text-align: center;
    padding-left: 4px;
    padding-right: 4px;
    background-color: var(--header-bg);
    border-right: 2px solid #6b7280;
}

.col-date {
    width: 75px;
    min-width: 75px;
    max-width: 75px;
    text-align: left;
}

.col-summary {
    width: 62px;
    min-width: 62px;
    max-width: 62px;
    text-align: center;
}

.col-person {
    width: 120px;
    min-width: 120px;
    max-width: 120px;
    text-align: center;
}

.person-header-wrap {
    display: flex;
    flex-direction: column;
    align-items: left;
    gap: 2px;
}

.person-name {
    font-size: 13.5px;
    letter-spacing: -0.01em;
}

/* Wiersze tabeli */
.terminarz-table tbody tr {
    transition: background-color 0.1s ease;
}

.terminarz-table tbody tr:hover {
    background-color: rgba(0, 0, 0, 0.02);
}

/* Wiersze weekendowe - subtelny ciepły akcent */
.terminarz-table tbody tr.is-weekend {
    background-color: #faf5ee;
}

.terminarz-table tbody tr.is-weekend:hover {
    background-color: #f5ede0;
}

/* Niedziela kończy pełen tydzień - wyraźna linia oddzielająca */
.terminarz-table tbody tr.is-sunday td {
    border-bottom: 2.5px solid #94a3b8;
}

.terminarz-table td {
    padding: 10px 8px;
    border-bottom: 1px solid var(--border-color);
    border-right: 1px solid var(--border-color);
    vertical-align: middle;
}

/* Kolumna daty - Sticky 1 po lewej */
.terminarz-table td.sticky-col {
    position: sticky;
    left: 0;
    background-color: #ffffff;
    z-index: 10;
    padding: 8px 6px;
}

.terminarz-table tbody tr.is-weekend td.sticky-col {
    background-color: #faf5ee;
}

.terminarz-table tbody tr.is-weekend:hover td.sticky-col {
    background-color: #f5ede0;
}

/* Kolumna sumy - Sticky 2 po lewej */
.terminarz-table td.sticky-col-2 {
    position: sticky;
    left: 75px;
    background-color: #ffffff;
    z-index: 10;
    padding: 8px 4px;
    border-right: 2px solid #cbd5e1;
    box-shadow: 2px 0 4px -2px rgba(0, 0, 0, 0.1);
}

.terminarz-table tbody tr.is-weekend td.sticky-col-2 {
    background-color: #faf5ee;
}

.terminarz-table tbody tr.is-weekend:hover td.sticky-col-2 {
    background-color: #f5ede0;
}

/* Zawartość komórki daty (nowoczesny format kalendarzowy) */
.date-cell-content {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 6px;
    padding-left: 4px;
}

.date-num {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
    min-width: 22px;
    text-align: left;
    font-variant-numeric: tabular-nums;
    line-height: 1;
}

.date-day {
    font-size: 11px;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.02em;
    padding: 2.5px 5.5px;
    border-radius: 4px;
    background-color: #f1f5f9;
    line-height: 1;
}

.date-day.day-weekend {
    color: #991b1b;
    background-color: #fee2e2;
}

/* Komórki statusu ('ok' i 'nie') */
.cell-status {
    cursor: pointer;
    user-select: none;
    transition: transform 0.08s ease, filter 0.15s ease;
    outline: none;
    text-align: center;
}

.cell-inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    height: 38px;
    border-radius: 6px;
    font-weight: 700;
    font-size: 14px;
}

/* Stylizacja 'ok' */
.cell-status.status-ok .cell-inner {
    background-color: var(--status-ok-bg);
    color: var(--status-ok-text);
    border: 1px solid var(--status-ok-border);
}

/* Stylizacja 'nie' */
.cell-status.status-nie .cell-inner {
    background-color: var(--status-nie-bg);
    color: var(--status-nie-text);
    border: 1px solid var(--status-nie-border);
}

/* Interakcje i aktywna kolumna */
.cell-status:active {
    transform: scale(0.95);
}

.cell-status:focus-visible {
    box-shadow: inset 0 0 0 2px var(--primary);
}

/* Wyróżnienie aktywnej kolumny zalogowanego/wybranego uczestnika */
.col-active-user {
    background-color: var(--active-col-bg) !important;
}

.terminarz-table thead th.col-active-user {
    background-color: #1e293b !important;
    color: #60a5fa !important;
    border-bottom: 2px solid #3b82f6 !important;
}

.cell-status.col-active-user {
    position: relative;
}

.cell-status.col-active-user .cell-inner {
    box-shadow: 0 1px 3px rgba(37, 99, 235, 0.15);
}

/* Komórka nieaktywna (gdy wybrano kogoś innego) */
.cell-status.disabled-cell {
    cursor: not-allowed;
    opacity: 0.65;
}

.cell-status.disabled-cell:hover {
    filter: none;
}

/* Kolumna Suma (2. pozycja, sticky) */
.cell-summary {
    padding: 6px 4px;
    text-align: center;
}

.summary-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 3px 6px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: -0.01em;
    font-variant-numeric: tabular-nums;
    line-height: 1.2;
    min-width: 38px;
}

/* Wszyscy pasują (n/n, np. 6/6 - zielone tło) */
.summary-full {
    background-color: var(--summary-full-bg);
    color: var(--summary-full-text);
    border: 1px solid var(--summary-full-border);
    box-shadow: 0 1px 2px rgba(13, 83, 41, 0.15);
}

/* Częściowe dopasowanie (np. 5/6, 2/6 - neutralne tło) */
.summary-partial {
    background-color: #f1f5f9;
    color: #475569;
    border: 1px solid #cbd5e1;
    font-weight: 600;
}

/* ==========================================================================
   Stopka informacyjna
   ========================================================================== */

.app-footer {
    padding: 12px 16px;
    background-color: var(--bg-card);
    border-top: 1px solid var(--border-color);
}

.footer-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
    gap: 16px;
}

.footer-info {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 16px;
    font-size: 13px;
    color: var(--text-secondary);
}

.legend-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.legend-dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    display: inline-block;
}
.legend-dot.dot-ok {
    background-color: #16a34a;
}
.legend-dot.dot-nie {
    background-color: #dc2626;
}

.footer-actions {
    display: flex;
    align-items: center;
    margin-left: auto;
}

.btn-icon-subtle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 6px;
    border: 1px solid transparent;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-icon-subtle:hover {
    color: var(--text-primary);
    background-color: #f1f5f9;
    border-color: var(--border-color);
}

/* ==========================================================================
   Modale i Panele
   ========================================================================== */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    padding: 16px;
    animation: fadeIn 0.2s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-dialog {
    background-color: #ffffff;
    border-radius: 12px;
    width: 100%;
    max-width: 520px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    animation: slideUp 0.2s ease-out;
}

.modal-dialog.modal-large {
    max-width: 900px;
}

.modal-dialog.modal-identity {
    max-width: 480px;
}

.identity-modal-intro {
    font-size: 13.5px;
    color: var(--text-secondary);
    margin-bottom: 14px;
}

.identity-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-bottom: 16px;
}

.identity-card-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 14px;
    background-color: #f8fafc;
    border: 1.5px solid var(--border-color);
    border-radius: 10px;
    font-size: 13.5px;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    text-align: left;
    transition: all 0.15s ease;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.identity-card-btn:hover {
    background-color: #f1f5f9;
    border-color: #cbd5e1;
    transform: translateY(-1px);
}

.identity-card-btn:active {
    transform: scale(0.98);
}

.identity-card-btn.selected {
    background-color: #eff6ff;
    border-color: var(--primary);
    color: var(--primary);
    box-shadow: 0 0 0 1px var(--primary);
}

.identity-card-btn .card-check {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 1.5px solid #cbd5e1;
    color: transparent;
    font-size: 11px;
    font-weight: bold;
    flex-shrink: 0;
    transition: all 0.15s ease;
}

.identity-card-btn.selected .card-check {
    background-color: var(--primary);
    border-color: var(--primary);
    color: #ffffff;
}

.identity-card-btn .card-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: normal;
    line-height: 1.3;
}

.identity-modal-footer {
    display: flex;
    justify-content: center;
    padding-top: 10px;
    border-top: 1px solid var(--border-color);
}

.btn-text-muted {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 13px;
    cursor: pointer;
    padding: 6px 12px;
    border-radius: 6px;
    transition: color 0.15s ease;
}

.btn-text-muted:hover {
    color: var(--text-secondary);
}

@keyframes slideUp {
    from { transform: translateY(16px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    background-color: #f8fafc;
}

.modal-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
}

.btn-close {
    background: none;
    border: none;
    font-size: 24px;
    color: var(--text-muted);
    cursor: pointer;
    line-height: 1;
    padding: 4px;
}

.btn-close:hover {
    color: var(--text-primary);
}

.modal-body {
    padding: 20px;
    overflow-y: auto;
}

/* Formularze w modalu */
.section-desc {
    font-size: 13.5px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text-primary);
}

.form-input, .form-select, .form-textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 14px;
    color: var(--text-primary);
    background-color: #ffffff;
    transition: border-color 0.15s ease;
    font-family: inherit;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.form-row {
    display: flex;
    gap: 12px;
}

.col-half {
    flex: 1;
}

.input-hint {
    display: block;
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 4px;
}

.warning-text {
    font-size: 12px;
    color: #b45309;
    margin-top: 14px;
    line-height: 1.4;
}

.form-alert {
    padding: 10px 12px;
    background-color: #fef2f2;
    border: 1px solid #fecaca;
    color: #b91c1c;
    border-radius: 6px;
    font-size: 13px;
    margin-bottom: 14px;
}

/* Zakładki panelu administratora */
.admin-tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 18px;
}

.admin-tab {
    flex: 1;
    padding: 10px 14px;
    border: none;
    background: none;
    font-size: 13.5px;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.15s ease;
}

.admin-tab:hover {
    color: var(--text-primary);
}

.admin-tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

/* Box statusu w generatorze (jak w komórce A17 w arkuszu) */
.status-box {
    background-color: #f8fafc;
    border: 1px dashed var(--border-color);
    border-radius: 6px;
    padding: 10px 14px;
    margin-bottom: 16px;
    font-size: 13px;
    color: var(--text-secondary);
    text-align: center;
}

.admin-footer-bar {
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
}

/* Przyciski */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 18px;
    font-size: 14px;
    font-weight: 600;
    border-radius: 6px;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.15s ease;
}

.btn-block {
    width: 100%;
}

.btn-primary {
    background-color: var(--primary);
    color: #ffffff;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
}

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

.btn-danger:hover {
    background-color: var(--danger-hover);
}

.btn-outline {
    background-color: transparent;
    border-color: var(--border-color);
    color: var(--text-secondary);
}

.btn-outline:hover {
    background-color: #f1f5f9;
    color: var(--text-primary);
}

/* Lista historii archiwum */
.history-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 14px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 10px;
    background-color: #f8fafc;
}

.history-info h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.history-meta {
    font-size: 12px;
    color: var(--text-muted);
}

.history-actions {
    display: flex;
    gap: 8px;
}

.btn-sm {
    padding: 6px 10px;
    font-size: 12px;
    border-radius: 5px;
}

/* Toast powiadomień */
.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    z-index: 200;
    pointer-events: none;
}

.toast {
    padding: 10px 16px;
    border-radius: 8px;
    background-color: #1e293b;
    color: #ffffff;
    font-size: 13.5px;
    font-weight: 500;
    box-shadow: var(--shadow-lg);
    animation: toastIn 0.25s ease-out;
    pointer-events: auto;
    display: flex;
    align-items: center;
    gap: 8px;
}

.toast.toast-error {
    background-color: #dc2626;
}

.toast.toast-success {
    background-color: #15803d;
}

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

/* ==========================================================================
   Mobile First Optymalizacje
   ========================================================================== */

@media (max-width: 640px) {
    .header-content {
        padding: 8px 12px;
        gap: 6px;
    }

    .header-title {
        font-size: 1.1rem;
    }

    .user-active-bar {
        font-size: 12px;
        padding: 3px 10px;
    }

    .modal-dialog.modal-identity {
        margin: 12px;
        max-height: 85vh;
    }

    .identity-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }

    .identity-card-btn {
        padding: 10px 10px;
        font-size: 12.5px;
    }

    .table-wrapper {
        padding: 6px;
    }

    .table-scroll-area {
        max-height: calc(100vh - 180px);
    }

    .col-date {
        width: 68px;
        min-width: 68px;
        max-width: 68px;
    }

    .col-summary {
        width: 54px;
        min-width: 54px;
        max-width: 54px;
    }

    .terminarz-table thead th.sticky-col-2,
    .terminarz-table td.sticky-col-2 {
        left: 68px;
    }

    .terminarz-table thead th.sticky-col,
    .terminarz-table td.sticky-col {
        padding-left: 4px;
        padding-right: 4px;
    }

    .date-num {
        font-size: 0.95rem;
        min-width: 16px;
    }

    .date-day {
        font-size: 9.5px;
        padding: 2px 3.5px;
    }

    .col-person {
        width: 105px;
        min-width: 105px;
        max-width: 105px;
    }

    .cell-inner {
        height: 36px;
        font-size: 13px;
    }

    .cell-summary {
        padding: 4px 2px;
    }

    .summary-badge {
        font-size: 11.5px;
        padding: 2.5px 4px;
        min-width: 32px;
    }

    .footer-container {
        flex-direction: row;
        justify-content: space-between;
    }

    .footer-info {
        font-size: 11.5px;
        gap: 8px;
    }

    .toast-container {
        left: 16px;
        right: 16px;
        bottom: 16px;
    }
}

@media (max-width: 380px) {
    .identity-grid {
        grid-template-columns: 1fr;
    }
}

/* ==========================================================================
   Ekran blokady hasłem (Login Gate)
   ========================================================================== */

.login-gate-body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    padding: 16px;
}

.login-gate-wrapper {
    width: 100%;
    max-width: 420px;
    margin: auto;
}

.login-gate-card {
    background-color: var(--bg-card);
    border-radius: 16px;
    border: 1px solid var(--border-color);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
    padding: 32px 24px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.login-gate-header {
    margin-bottom: 24px;
}

.login-gate-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 16px;
    background: #eff6ff;
    color: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 6px -1px rgba(37, 99, 235, 0.1);
}

.login-gate-title {
    font-size: 1.65rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
    margin-bottom: 4px;
}

.login-gate-subtitle {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.login-gate-content {
    text-align: left;
}

.login-gate-intro {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.45;
}

.login-input-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.login-password-wrap {
    position: relative;
    display: flex;
    align-items: center;
}

.login-password-input {
    width: 100%;
    padding: 12px 44px 12px 14px;
    font-size: 1rem;
    border: 1.5px solid var(--border-color);
    border-radius: 10px;
    transition: all 0.15s ease;
    background-color: #fafbfc;
}

.login-password-input:focus {
    outline: none;
    border-color: var(--primary);
    background-color: #ffffff;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.btn-toggle-pwd {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    transition: color 0.15s ease;
}

.btn-toggle-pwd:hover {
    color: var(--text-primary);
}

.login-submit-btn {
    margin-top: 16px;
    padding: 12px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 10px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background-color: var(--primary);
    color: #ffffff;
    border: none;
    cursor: pointer;
    transition: background-color 0.15s ease, transform 0.05s ease;
    box-shadow: 0 4px 6px -1px rgba(37, 99, 235, 0.2);
}

.login-submit-btn:hover {
    background-color: var(--primary-hover);
}

.login-submit-btn:active {
    transform: scale(0.99);
}

.login-submit-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.btn-spinner {
    width: 20px;
    height: 20px;
    border: 2.5px solid rgba(255, 255, 255, 0.3);
    border-top-color: #ffffff;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.login-gate-footer {
    margin-top: 24px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.gate-hint {
    font-size: 0.8rem;
    color: var(--text-muted);
}