/* ==============================================================
   OmiHub - Modern Dashboard Styles
   ============================================================== */

:root {
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --primary-light: #eff6ff;
    --success: #10b981;
    --success-light: #ecfdf5;
    --warning: #f59e0b;
    --warning-light: #fffbeb;
    --danger: #ef4444;
    --danger-light: #fef2f2;
    --dark: #0f172a;
    --slate-800: #1e293b;
    --slate-700: #334155;
    --slate-600: #475569;
    --slate-500: #64748b;
    --slate-400: #94a3b8;
    --slate-200: #e2e8f0;
    --slate-100: #f1f5f9;
    --slate-50: #f8fafc;
    --white: #ffffff;
    --radius: 10px;
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--slate-50);
    color: var(--slate-800);
    line-height: 1.6;
    min-height: 100vh;
}

/* ==============================================================
   Login Screen
   ============================================================== */
.login-body {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    padding: 20px;
}

.login-card {
    background: var(--white);
    border-radius: 16px;
    padding: 40px;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.3);
}

.login-header {
    text-align: center;
    margin-bottom: 28px;
}

.logo-circle {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary) 0%, #1d4ed8 100%);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin: 0 auto 16px;
    box-shadow: 0 4px 10px rgba(59, 130, 246, 0.4);
}

.login-header h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--slate-800);
}

.login-header .subtitle {
    font-size: 13px;
    color: var(--slate-500);
    margin-top: 4px;
}

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

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--slate-700);
    margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 11px 14px;
    border: 1px solid var(--slate-200);
    border-radius: 8px;
    font-size: 14px;
    background: var(--white);
    transition: all 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    text-decoration: none;
}

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

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

.btn-secondary {
    background: var(--slate-100);
    color: var(--slate-700);
}

.btn-secondary:hover {
    background: var(--slate-200);
}

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

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

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
}

.btn-block {
    width: 100%;
}

.login-footer {
    text-align: center;
    margin-top: 24px;
    font-size: 12px;
    color: var(--slate-400);
}

.alert {
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 13px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.alert-error {
    background: var(--danger-light);
    color: var(--danger);
    border: 1px solid #fecaca;
}

.alert-success {
    background: var(--success-light);
    color: var(--success);
    border: 1px solid #a7f3d0;
}

/* ==============================================================
   Main App Layout
   ============================================================== */
.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Top Navbar */
.navbar {
    background: var(--white);
    border-bottom: 1px solid var(--slate-200);
    padding: 0 24px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 40;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-logo {
    width: 36px;
    height: 36px;
    background: var(--primary);
    color: var(--white);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
}

.nav-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--slate-800);
}

.nav-tag {
    font-size: 11px;
    background: var(--slate-100);
    color: var(--slate-600);
    padding: 2px 8px;
    border-radius: 9999px;
    font-weight: 600;
}

.nav-user {
    display: flex;
    align-items: center;
    gap: 16px;
}

.nav-user-info {
    font-size: 13px;
    color: var(--slate-600);
    display: flex;
    align-items: center;
    gap: 6px;
}

/* Navigation Tabs */
.tabs-bar {
    background: var(--white);
    border-bottom: 1px solid var(--slate-200);
    padding: 0 24px;
    display: flex;
    gap: 8px;
    overflow-x: auto;
}

.tab-btn {
    padding: 14px 18px;
    font-size: 14px;
    font-weight: 600;
    color: var(--slate-500);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s;
    white-space: nowrap;
}

.tab-btn:hover {
    color: var(--slate-800);
}

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

.tab-badge {
    background: var(--slate-100);
    color: var(--slate-600);
    font-size: 11px;
    padding: 2px 7px;
    border-radius: 9999px;
}

.tab-btn.active .tab-badge {
    background: var(--primary-light);
    color: var(--primary);
}

/* Main Content Area */
.main-content {
    flex: 1;
    padding: 28px 24px;
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
    animation: fadeIn 0.2s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(4px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes cardFlash {
    0% { transform: scale(0.98); box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.4); }
    50% { transform: scale(1.02); box-shadow: 0 0 0 6px rgba(59, 130, 246, 0.2); }
    100% { transform: scale(1); box-shadow: 0 2px 6px rgba(0,0,0,0.04); }
}

.card-flash-update {
    animation: cardFlash 0.7s ease-in-out;
}

/* ==============================================================
   Components: Stats Cards (Compact & Space-saving)
   ============================================================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 10px;
    margin-bottom: 16px;
}

.stat-card {
    background: var(--white);
    border: 1px solid var(--slate-200);
    border-radius: 10px;
    padding: 10px 14px;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 1px 2px 0 rgb(0 0 0 / 0.04);
    min-width: 0;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.stat-card:hover {
    box-shadow: 0 2px 6px 0 rgb(0 0 0 / 0.08);
}

.stat-icon {
    width: 34px;
    height: 34px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    flex-shrink: 0;
}

.stat-icon.blue { background: var(--primary-light); color: var(--primary); }
.stat-icon.green { background: var(--success-light); color: var(--success); }
.stat-icon.emerald { background: #ecfdf5; color: #059669; }
.stat-icon.amber { background: var(--warning-light); color: var(--warning); }
.stat-icon.purple { background: #f3e8ff; color: #9333ea; }

.stat-value {
    font-size: 16px;
    font-weight: 700;
    color: var(--slate-800);
    line-height: 1.2;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.stat-label {
    font-size: 11px;
    color: var(--slate-500);
    line-height: 1.2;
    margin-top: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ==============================================================
   Components: Cards & Panels
   ============================================================== */
.card {
    background: var(--white);
    border: 1px solid var(--slate-200);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: 0 1px 3px 0 rgb(0 0 0 / 0.05);
}

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

.card-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--slate-800);
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Drag & Drop Upload Area */
.upload-dropzone {
    border: 2px dashed var(--slate-200);
    border-radius: var(--radius);
    padding: 36px 20px;
    text-align: center;
    background: var(--slate-50);
    cursor: pointer;
    transition: all 0.2s;
    margin-bottom: 24px;
}

.upload-dropzone:hover,
.upload-dropzone.dragover {
    border-color: var(--primary);
    background: var(--primary-light);
}

.dropzone-icon {
    font-size: 40px;
    color: var(--primary);
    margin-bottom: 12px;
}

.dropzone-text {
    font-size: 14px;
    font-weight: 600;
    color: var(--slate-700);
}

.dropzone-sub {
    font-size: 12px;
    color: var(--slate-400);
    margin-top: 4px;
}

/* Data Table */
.table-wrapper {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
    text-align: left;
}

th {
    background: var(--slate-50);
    color: var(--slate-600);
    font-weight: 600;
    padding: 12px 16px;
    border-bottom: 1px solid var(--slate-200);
}

td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--slate-100);
    color: var(--slate-700);
}

tr:hover td {
    background: var(--slate-50);
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 8px;
    border-radius: 9999px;
    font-size: 11px;
    font-weight: 600;
}

.badge-success { background: var(--success-light); color: var(--success); }
.badge-warning { background: var(--warning-light); color: var(--warning); }
.badge-danger { background: var(--danger-light); color: var(--danger); }
.badge-secondary { background: var(--slate-100); color: var(--slate-600); }
.badge-primary { background: var(--primary-light); color: var(--primary); }

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 100;
    padding: 20px;
}

.modal-overlay.active {
    display: flex;
}

.modal-box {
    background: var(--white);
    border-radius: 14px;
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    padding: 24px;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--slate-200);
}

.modal-close {
    background: none;
    border: none;
    font-size: 18px;
    color: var(--slate-400);
    cursor: pointer;
}

.modal-close:hover {
    color: var(--slate-700);
}

/* Code block */
pre.code-block {
    background: var(--slate-800);
    color: #e2e8f0;
    padding: 16px;
    border-radius: 8px;
    font-family: monospace;
    font-size: 12px;
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-all;
}

/* Responsive */
@media (max-width: 768px) {
    .navbar { padding: 0 16px; }
    .main-content { padding: 16px 12px; }
    .tabs-bar { padding: 0 12px; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
}
@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr; }
}

/* ==============================================================
   Calendar Tab Styles (Multiple Google Calendars & Event Creator)
   ============================================================== */
#calendar-account-pills button:hover {
    filter: brightness(0.96);
    transform: translateY(-1px);
}
#calendar-frame-container {
    width: 100%;
    min-height: 720px;
    height: 75vh;
    border-radius: 8px;
    overflow: hidden;
    background: #ffffff;
    border: 1px solid var(--slate-200);
}

#calendar-frame-container iframe {
    width: 100%;
    height: 100%;
    min-height: 720px;
    border: none;
    display: block;
}

@media (max-width: 768px) {
    #calendar-frame-container,
    #calendar-frame-container iframe {
        min-height: 540px;
        height: 65vh;
    }
}

/* ==============================================================
   Task & ToDo Tab Styles
   ============================================================== */
.filter-pill {
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    border: 1px solid var(--slate-200);
    background: var(--white);
    color: var(--slate-600);
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.filter-pill:hover {
    background: var(--slate-100);
    color: var(--slate-800);
}

.filter-pill.active {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
    box-shadow: 0 2px 6px rgba(59, 130, 246, 0.3);
}

.filter-pill .pill-badge {
    background: rgba(0, 0, 0, 0.08);
    padding: 1px 6px;
    border-radius: 10px;
    font-size: 11px;
}

.filter-pill.active .pill-badge {
    background: rgba(255, 255, 255, 0.25);
    color: #ffffff;
}

.task-card {
    background: var(--white);
    border: 1px solid var(--slate-200);
    border-radius: 12px;
    padding: 14px 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    transition: all 0.2s ease;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
    position: relative;
    border-left: 5px solid #cbd5e1;
}

.task-card:hover {
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.06);
    transform: translateY(-1px);
}

.task-card.priority-high {
    border-left-color: var(--danger);
}

.task-card.priority-medium {
    border-left-color: var(--warning);
}

.task-card.priority-low {
    border-left-color: #3b82f6;
}

.task-card.completed {
    background: #f8fafc;
    border-color: #e2e8f0;
    border-left-color: var(--success);
    opacity: 0.75;
}

.task-card.completed .task-title-text {
    text-decoration: line-through;
    color: var(--slate-400);
}

.task-main-row {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    justify-content: space-between;
}

.task-left-section {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    flex: 1;
}

.task-checkbox-btn {
    width: 22px;
    height: 22px;
    min-width: 22px;
    border-radius: 6px;
    border: 2px solid #cbd5e1;
    background: #ffffff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: transparent;
    transition: all 0.2s ease;
    margin-top: 2px;
}

.task-checkbox-btn:hover {
    border-color: var(--primary);
}

.task-card.completed .task-checkbox-btn {
    background: var(--success);
    border-color: var(--success);
    color: #ffffff;
}

.task-title-area {
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex: 1;
}

.task-title-text {
    font-size: 14px;
    font-weight: 600;
    color: var(--slate-800);
    line-height: 1.4;
    transition: color 0.15s ease;
}

.task-card[style*="cursor:pointer"]:hover .task-title-text span:first-child {
    color: var(--primary);
}

.task-meta-pills {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
    font-size: 11px;
}

.task-due-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 7px;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 600;
    background: #f1f5f9;
    color: #475569;
}

.task-due-badge.overdue {
    background: #fef2f2;
    color: #dc2626;
    border: 1px solid #fecaca;
}

.task-due-badge.soon {
    background: #fffbeb;
    color: #b45309;
    border: 1px solid #fde68a;
}

.task-actions {
    display: flex;
    align-items: center;
    gap: 6px;
}

.task-action-btn {
    background: none;
    border: none;
    color: var(--slate-400);
    cursor: pointer;
    font-size: 14px;
    padding: 6px;
    border-radius: 6px;
    transition: all 0.15s ease;
}

.task-action-btn:hover {
    background: var(--slate-100);
    color: var(--slate-700);
}

.task-action-btn.star.active {
    color: #f59e0b;
}

.task-expand-details {
    padding: 10px 14px;
    background: #f8fafc;
    border-radius: 8px;
    font-size: 12px;
    line-height: 1.6;
    color: var(--slate-600);
    border: 1px solid #f1f5f9;
}

/* ==============================================================
   Settings Accordion Styles (折りたたみ設定)
   ============================================================== */
.setting-accordion {
    margin-bottom: 12px !important;
    border: 1px solid var(--slate-200);
    border-radius: 12px;
    background: #ffffff;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
    overflow: hidden;
    transition: box-shadow 0.2s ease;
}

.setting-accordion:hover {
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.06);
}

.setting-accordion summary {
    list-style: none;
    cursor: pointer;
    user-select: none;
    padding: 14px 18px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #ffffff;
    transition: background-color 0.15s ease;
}

.setting-accordion summary::-webkit-details-marker {
    display: none;
}

.setting-accordion summary:hover {
    background: #f8fafc;
}

.setting-accordion .accordion-chevron {
    transition: transform 0.25s ease;
    color: var(--slate-400);
    font-size: 13px;
}

.setting-accordion[open] .accordion-chevron {
    transform: rotate(180deg);
}

.setting-accordion-content {
    padding: 16px 20px 20px;
    border-top: 1px solid #f1f5f9;
    background: #ffffff;
}

.setting-icon {
    width: 34px;
    height: 34px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    flex-shrink: 0;
}

/* ==============================================================
   Email Viewer Styles (受信メール一覧)
   ============================================================== */
.email-item-card {
    background: var(--white);
    border: 1px solid var(--slate-200);
    border-radius: 12px;
    padding: 14px 18px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    transition: all 0.2s ease;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
    margin-bottom: 10px;
}

.email-item-card:hover {
    border-color: #93c5fd;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.08);
    transform: translateY(-1px);
}

.email-item-card.has-task {
    border-left: 4px solid #10b981;
}

.email-meta-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 12px;
}

.email-subject-line {
    font-size: 15px;
    font-weight: 700;
    color: var(--slate-800);
    margin: 2px 0;
    line-height: 1.4;
}

.email-snippet-text {
    font-size: 13px;
    color: var(--slate-600);
    line-height: 1.5;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ==============================================================
   AI Research Notes & Deep Research Styles
   ============================================================== */
.research-card {
    transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.research-card:hover {
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.06);
    border-color: #cbd5e1;
}

.research-card.research-card-deep {
    border-left: 4px solid #7c3aed !important;
    background: linear-gradient(180deg, #ffffff 0%, #faf5ff 100%);
}

.research-card.archived {
    opacity: 0.75;
    background: #f8fafc;
}

.research-markdown-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 12px 0;
    font-size: 12px;
}

.research-markdown-body table th {
    background: #f1f5f9;
    padding: 8px 10px;
    font-weight: 700;
    border: 1px solid #cbd5e1;
    text-align: left;
}

.research-markdown-body table td {
    padding: 8px 10px;
    border: 1px solid #e2e8f0;
    text-align: left;
}

.research-markdown-body code {
    background: #f1f5f9;
    padding: 2px 5px;
    border-radius: 4px;
    font-size: 11px;
    font-family: monospace;
    color: #475569;
}

.research-markdown-body pre {
    background: #1e293b;
    color: #f8fafc;
    padding: 12px;
    border-radius: 6px;
    overflow-x: auto;
    font-size: 12px;
}

/* まなび・学習カルテカード */
.study-mistake-card {
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.study-mistake-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06) !important;
}