/* ═══════════════════════════════════════════ */
/*  Weekly Allocation System — Styles         */
/* ═══════════════════════════════════════════ */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg: #0f1117;
    --bg2: #1a1d27;
    --bg3: #242837;
    --border: #2d3348;
    --text: #e4e6f0;
    --text2: #8b8fa8;
    --primary: #6366f1;
    --primary-hover: #818cf8;
    --success: #22c55e;
    --danger: #ef4444;
    --warning: #f59e0b;
    --radius: 8px;
}

body {
    font-family: 'Inter', -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
}

/* ── Pages ── */
.page { display: none; }
.page.active { display: flex; }

/* ── Login ── */
#login-page {
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #0f1117 0%, #1a1d27 50%, #0f1117 100%);
}

.login-container {
    width: 400px;
    padding: 40px;
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-header h1 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
}

.login-header .subtitle {
    color: var(--text2);
    font-size: 14px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text2);
    margin-bottom: 6px;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-size: 15px;
    transition: border-color 0.2s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary);
}

.login-footer {
    text-align: center;
    margin-top: 20px;
    color: var(--text2);
    font-size: 12px;
}

.error-msg {
    margin-top: 12px;
    padding: 10px;
    background: rgba(239,68,68,0.1);
    border: 1px solid var(--danger);
    border-radius: var(--radius);
    color: var(--danger);
    font-size: 13px;
}

/* ── Buttons ── */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s;
}

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

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

.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text2);
}

.btn-outline:hover {
    border-color: var(--text);
    color: var(--text);
}

.btn-sm {
    padding: 6px 14px;
    font-size: 13px;
}

.btn-full {
    width: 100%;
    padding: 14px;
}

/* ── App Layout ── */
#app-page {
    flex-direction: column;
    min-height: 100vh;
}

/* Top Bar */
.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    height: 56px;
    background: var(--bg2);
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo {
    font-size: 18px;
    font-weight: 600;
}

.version {
    background: var(--bg3);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    color: var(--text2);
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.user-info {
    font-size: 13px;
    color: var(--text2);
}

/* Sidebar */
.sidebar {
    position: fixed;
    top: 56px;
    left: 0;
    width: 220px;
    height: calc(100vh - 56px);
    background: var(--bg2);
    border-right: 1px solid var(--border);
    overflow-y: auto;
    padding: 16px 0;
}

.sidebar-section {
    margin-bottom: 20px;
    padding: 0 16px;
}

.sidebar-section h3 {
    font-size: 11px;
    font-weight: 600;
    color: var(--text2);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.nav-link {
    display: block;
    padding: 8px 12px;
    color: var(--text2);
    text-decoration: none;
    font-size: 13px;
    border-radius: 6px;
    margin-bottom: 2px;
    transition: all 0.15s;
}

.nav-link:hover {
    background: var(--bg3);
    color: var(--text);
}

.nav-link.active {
    background: rgba(99, 102, 241, 0.15);
    color: var(--primary-hover);
}

/* Content */
.content {
    margin-left: 220px;
    margin-top: 0;
    padding: 24px;
    flex: 1;
    min-height: calc(100vh - 56px);
}

.content-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.content-header h2 {
    font-size: 22px;
    font-weight: 600;
}

.search-input {
    padding: 8px 16px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-size: 13px;
    width: 250px;
}

.search-input:focus {
    outline: none;
    border-color: var(--primary);
}

/* Table */
.table-container {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
}

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

.data-table th {
    padding: 12px 16px;
    text-align: left;
    font-size: 12px;
    font-weight: 600;
    color: var(--text2);
    text-transform: uppercase;
    letter-spacing: 0.3px;
    background: var(--bg3);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    white-space: nowrap;
}

.data-table td {
    padding: 10px 16px;
    font-size: 13px;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

.data-table tr:hover td {
    background: rgba(99, 102, 241, 0.05);
}

.data-table tbody tr:last-child td {
    border-bottom: none;
}

/* Tag / badge */
.tag {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 500;
}

.tag-exclusive {
    background: rgba(245, 158, 11, 0.15);
    color: var(--warning);
}

.tag-normal {
    background: rgba(34, 197, 94, 0.15);
    color: var(--success);
}

.tag-shortage {
    background: rgba(239, 68, 68, 0.15);
    color: var(--danger);
}

.tag-ok {
    background: rgba(34, 197, 94, 0.15);
    color: var(--success);
}

/* Loading / empty */
.loading, .empty-state {
    padding: 40px;
    text-align: center;
    color: var(--text2);
}

.spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--border);
    border-top: 3px solid var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 12px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Engine panel */
.engine-panel, .add-panel {
    margin-top: 20px;
}

.card {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
}

.card h3 {
    margin-bottom: 12px;
}

.card p {
    color: var(--text2);
    margin-bottom: 16px;
    font-size: 14px;
}

.engine-result {
    margin-top: 16px;
    padding: 12px;
    border-radius: var(--radius);
    font-size: 14px;
    display: none;
}

.engine-result.show {
    display: block;
}

.engine-result.success {
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid var(--success);
    color: var(--success);
}

.engine-result.error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--danger);
    color: var(--danger);
}

/* Inline form */
.inline-form {
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
}

.inline-form select,
.inline-form input {
    padding: 10px 14px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-size: 14px;
}

.inline-form select:focus,
.inline-form input:focus {
    outline: none;
    border-color: var(--primary);
}

/* Scrollable table wrapper */
.table-container {
    max-height: calc(100vh - 200px);
    overflow: auto;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar { display: none; }
    .content { margin-left: 0; }
    .topbar { padding: 0 12px; }
}

/* Upload Zone */
.upload-zone {
    text-align: center;
    padding: 40px 20px;
    border: 2px dashed var(--border);
    border-radius: 12px;
    transition: border-color 0.2s;
}

.upload-zone:hover {
    border-color: var(--primary);
}

.upload-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

/* Result Card */
.result-summary {
    display: flex;
    gap: 16px;
    margin-top: 16px;
    flex-wrap: wrap;
}

.stat {
    background: var(--bg3);
    padding: 12px 20px;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    min-width: 120px;
}

.stat-label {
    font-size: 11px;
    color: var(--text2);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.stat-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--text);
}

.stat-danger {
    color: var(--danger);
}

/* Result Errors */
.result-errors {
    margin-top: 12px;
    padding: 12px;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--danger);
    border-radius: 8px;
    color: var(--danger);
    font-size: 13px;
}

/* Cell demand highlight */
.cell-demand {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-hover);
    font-weight: 600;
}

/* Email template card */
.email-template-card {
    background: var(--bg3);
    padding: 16px;
    border-radius: 8px;
    margin-bottom: 12px;
}

.email-template-card h4 {
    margin-bottom: 8px;
}

/* Panel */
.panel {
    margin-bottom: 20px;
    display: none;
}

.panel:first-child {
    display: block;
}

/* Checkbox list */
.checkbox-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    max-height: 200px;
    overflow-y: auto;
    padding: 8px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
}

.checkbox-item {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 8px;
    background: var(--bg3);
    border-radius: 4px;
    font-size: 12px;
    cursor: pointer;
}

.checkbox-item:hover {
    background: rgba(99, 102, 241, 0.15);
}

.checkbox-item input {
    margin: 0;
}

/* Inline form vertical */
.inline-form-vertical {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.form-row {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.form-row label {
    font-size: 12px;
    color: var(--text2);
    font-weight: 500;
}

.form-row input, .form-row select {
    padding: 10px 12px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text);
    font-size: 14px;
}

.form-row input:focus, .form-row select:focus {
    outline: none;
    border-color: var(--primary);
}

/* Progress area */
.progress-area {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    padding: 20px;
    margin-top: 16px;
}

/* Brand Switcher */
.brand-switcher {
    display: inline-flex;
    background: var(--bg3);
    border-radius: 6px;
    padding: 2px;
    margin-right: 12px;
}

.brand-btn {
    padding: 6px 16px;
    background: transparent;
    border: none;
    color: var(--text2);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.2s;
}

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

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

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-content {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.modal-header h3 {
    font-size: 20px;
    font-weight: 600;
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--text2);
    font-size: 24px;
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
}

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

/* Help Tips (tooltips) */
.help-tip {
    display: inline-block;
    width: 16px;
    height: 16px;
    background: var(--primary);
    color: #fff;
    border-radius: 50%;
    text-align: center;
    font-size: 11px;
    line-height: 16px;
    cursor: help;
    margin-left: 4px;
    position: relative;
}

.help-tip:hover::after {
    content: attr(title);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg);
    border: 1px solid var(--border);
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 12px;
    white-space: nowrap;
    z-index: 100;
    margin-bottom: 4px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

/* Help Block */
.help-block {
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 13px;
    margin-bottom: 16px;
}

.help-block.info {
    background: rgba(99, 102, 241, 0.1);
    border-left: 3px solid var(--primary);
    color: var(--text);
}

.help-block.warning {
    background: rgba(245, 158, 11, 0.1);
    border-left: 3px solid var(--warning);
    color: var(--warning);
}

/* Editor Tabs */
.editor-tabs {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.editor-tab-btn {
    padding: 8px 16px;
}

.editor-tab-btn.active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.editor-tab-btn:hover:not(.active) {
    background: var(--bg3);
}

/* Warehouse buttons */
.warehouse-btn {
    padding: 10px 24px;
    font-size: 14px;
    font-weight: 500;
}

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

/* Stock paste textarea */
#stock-paste-area:focus {
    outline: none;
    border-color: var(--primary);
}

/* Parse result card */
.stock-parse-summary {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.parse-stat {
    background: var(--bg3);
    padding: 12px 20px;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    min-width: 140px;
}

.parse-stat-label {
    font-size: 11px;
    color: var(--text2);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.parse-stat-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--text);
}

/* Status tags */
.status-tag {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
}

.status-new {
    background: rgba(34, 197, 94, 0.15);
    color: var(--success);
}

.status-update {
    background: rgba(59, 130, 246, 0.15);
    color: #60a5fa;
}

.status-error {
    background: rgba(239, 68, 68, 0.15);
    color: var(--danger);
}

/* Editor Content */
.editor-content {
    margin-top: 20px;
}

/* Edit inputs */
.edit-input {
    width: 100%;
    padding: 6px 10px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text);
    font-size: 13px;
}

.edit-input:focus {
    outline: none;
    border-color: var(--primary);
}

/* Help sections in instructions */
.help-section {
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border);
}

.help-section:last-child {
    border-bottom: none;
}

.help-section h4 {
    margin-bottom: 12px;
    color: var(--primary-hover);
}

.help-section ol, .help-section ul {
    margin-left: 20px;
    margin-top: 8px;
}

.help-section li {
    margin-bottom: 6px;
}

.code-block {
    background: var(--bg3);
    padding: 12px;
    border-radius: 6px;
    font-family: monospace;
    font-size: 12px;
    margin: 8px 0;
    overflow-x: auto;
    white-space: pre;
}