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

:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #141414;
    --bg-tertiary: #1e1e1e;
    --bg-hover: #2a2a2a;
    --border-color: #2a2a2a;
    --text-primary: #f5f5f5;
    --text-secondary: #a0a0a0;
    --text-muted: #6b6b6b;
    --accent: #fff;
    --accent-dim: rgba(255, 255, 255, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.5;
}

.app {
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
    border-bottom: 1px solid var(--border-color);
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: var(--text-primary);
    color: var(--bg-primary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 18px;
}

.logo-text {
    font-size: 18px;
    font-weight: 600;
    letter-spacing: -0.02em;
}

.btn-ghost {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.15s ease;
}

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

/* Main */
.main {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Auth section */
.auth-section {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 24px;
}

.welcome {
    text-align: center;
    max-width: 480px;
}

.welcome h1 {
    font-size: 32px;
    font-weight: 600;
    letter-spacing: -0.03em;
    margin-bottom: 16px;
    line-height: 1.2;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 16px;
    margin-bottom: 32px;
}

.btn-primary {
    background: var(--text-primary);
    color: var(--bg-primary);
    border: none;
    padding: 14px 28px;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s ease;
}

.btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

/* Search section */
.search-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    max-width: 800px;
    width: 100%;
    margin: 0 auto;
    padding: 0 24px;
    overflow: hidden;
}

.results-area {
    flex: 1;
    overflow-y: auto;
    padding: 32px 0;
}

.empty-state {
    text-align: center;
    padding: 80px 0;
}

.empty-state p {
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.examples {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.example {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.15s ease;
}

.example:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

/* Search container */
.search-container {
    padding: 24px 0;
    border-top: 1px solid var(--border-color);
}

.search-box {
    display: flex;
    align-items: center;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 4px;
    transition: border-color 0.15s ease;
}

.search-box:focus-within {
    border-color: #444;
}

#search-input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 15px;
    padding: 14px 18px;
    outline: none;
}

#search-input::placeholder {
    color: var(--text-muted);
}

.clear-btn {
    width: 36px;
    height: 36px;
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.15s ease;
    font-size: 16px;
}

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

.search-btn {
    width: 44px;
    height: 44px;
    background: var(--text-primary);
    border: none;
    border-radius: 12px;
    color: var(--bg-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.15s ease;
}

.search-btn:hover {
    opacity: 0.85;
}

.search-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.search-hint {
    text-align: center;
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 12px;
}

/* Results */
.query-info {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 14px 18px;
    margin-bottom: 20px;
    font-size: 13px;
}

.query-info code {
    background: var(--bg-tertiary);
    padding: 3px 8px;
    border-radius: 6px;
    font-family: 'SF Mono', Monaco, monospace;
    color: var(--text-secondary);
}

.analysis-box {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-left: 3px solid var(--text-primary);
    border-radius: 12px;
    padding: 16px 20px;
    margin-bottom: 24px;
    font-size: 16px;
    color: var(--text-secondary);
}

.search-time {
    display: block;
    margin-top: 10px;
    font-size: 12px;
    color: var(--text-muted);
}

.analysis-box strong {
    color: var(--text-primary);
}

.results-header {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.email-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 18px 20px;
    margin-bottom: 12px;
    transition: border-color 0.15s ease;
    cursor: pointer;
}

.email-card:hover {
    border-color: #808080;
}

.email-attachment-icon {
    color: var(--text-muted);
    margin-right: 8px;
    font-size: 13px;
}

.email-subject {
    font-weight: 500;
    font-size: 15px;
    margin-bottom: 6px;
    color: var(--text-primary);
}

.email-from {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.email-snippet {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.5;
}

.email-date {
    font-size: 12px;
    color: #a0a0a0;
    margin-top: 10px;
}

/* Loading state */
.loading {
    text-align: center;
    padding: 60px 0;
    color: var(--text-secondary);
}

.loading-spinner {
    width: 24px;
    height: 24px;
    border: 2px solid var(--border-color);
    border-top-color: var(--text-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 16px;
}

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

/* Error state */
.error-box {
    background: rgba(220, 53, 69, 0.1);
    border: 1px solid rgba(220, 53, 69, 0.3);
    border-radius: 12px;
    padding: 16px 20px;
    color: #ff6b6b;
    font-size: 14px;
}

/* No results */
.no-results {
    text-align: center;
    padding: 40px 0;
    color: var(--text-secondary);
}

.suggestions {
    margin-top: 16px;
    text-align: left;
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 16px 20px;
}

.suggestions ul {
    margin-top: 8px;
    padding-left: 20px;
    color: var(--text-muted);
}

.suggestions li {
    margin-bottom: 6px;
}

/* Header actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.user-email {
    font-size: 14px;
    color: var(--text-secondary);
}

/* Auth container */
.auth-container {
    text-align: center;
    max-width: 360px;
    width: 100%;
}

.auth-container h1 {
    font-size: 28px;
    font-weight: 600;
    letter-spacing: -0.03em;
    margin-bottom: 8px;
}

.auth-tabs {
    display: flex;
    gap: 4px;
    background: var(--bg-secondary);
    padding: 4px;
    border-radius: 12px;
    margin-bottom: 24px;
}

.auth-tab {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 10px 16px;
    border-radius: 8px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.15s ease;
}

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

.auth-tab.active {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.auth-form input {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 14px 16px;
    border-radius: 10px;
    font-size: 15px;
    outline: none;
    transition: border-color 0.15s ease;
}

.auth-form input:focus {
    border-color: #444;
}

.auth-form input::placeholder {
    color: var(--text-muted);
}

.auth-form .btn-primary {
    margin-top: 8px;
}

.form-error {
    color: #ff6b6b;
    font-size: 13px;
    text-align: left;
    min-height: 20px;
}

.form-success {
    color: #51cf66;
    font-size: 13px;
    text-align: left;
    min-height: 20px;
}

/* Gmail section */
.gmail-section {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 24px;
}

/* Search footer */
.search-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 12px;
}

.search-footer .search-hint {
    margin: 0;
    text-align: left;
}

.btn-text {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 12px;
    cursor: pointer;
    padding: 4px 8px;
    transition: color 0.15s ease;
}

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

/* History link */
.history-link {
    display: inline-block;
    margin-top: 24px;
    color: var(--text-muted);
    font-size: 13px;
    text-decoration: none;
    transition: color 0.15s ease;
}

.history-link:hover {
    color: var(--text-secondary);
}

/* Modal */
.modal {
    position: fixed;
    inset: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    width: 90%;
    max-width: 500px;
    max-height: 70vh;
    display: flex;
    flex-direction: column;
}

.modal-content.modal-wide {
    max-width: 700px;
}

.modal-content.modal-email {
    max-width: 800px;
    height: 80vh;
    max-height: 80vh;
}

.email-detail-meta {
    padding-bottom: 16px;
    margin-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.email-detail-row {
    display: flex;
    margin-bottom: 8px;
    font-size: 14px;
}

.email-detail-label {
    color: var(--text-muted);
    width: 60px;
    flex-shrink: 0;
}

.email-detail-value {
    color: var(--text-primary);
    word-break: break-word;
}

.email-detail-date {
    color: #a0a0a0;
    font-size: 13px;
    margin-top: 8px;
}

.email-detail-body {
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-secondary);
    white-space: pre-wrap;
    word-break: break-word;
}

.email-detail-body-html {
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-secondary);
}

.email-detail-body-html iframe {
    width: 100%;
    border: none;
    min-height: 300px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    font-size: 18px;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 24px;
    cursor: pointer;
    padding: 0;
    line-height: 1;
    transition: color 0.15s ease;
}

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

.modal-body {
    flex: 1;
    overflow-y: auto;
    padding: 16px 24px;
}

/* History items */
.history-item {
    padding: 14px 16px;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    margin-bottom: 10px;
    cursor: pointer;
    transition: all 0.15s ease;
}

.history-item:hover {
    background: var(--bg-tertiary);
    border-color: #3a3a3a;
}

.history-prompt {
    font-size: 14px;
    color: var(--text-primary);
    margin-bottom: 6px;
}

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

.history-empty {
    text-align: center;
    padding: 40px 0;
    color: var(--text-muted);
}

/* Responsive */
@media (max-width: 640px) {
    .welcome h1,
    .auth-container h1 {
        font-size: 24px;
    }

    .examples {
        flex-direction: column;
        align-items: center;
    }

    .header {
        padding: 12px 16px;
    }

    .search-section {
        padding: 0 16px;
    }

    .search-footer {
        flex-direction: column;
        gap: 8px;
    }

    .modal-content {
        max-height: 80vh;
    }
}

/* Dev Details */
.btn-dev-details {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 12px;
    cursor: pointer;
    margin-bottom: 16px;
    transition: all 0.2s;
}

.btn-dev-details:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.dev-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.dev-table td {
    padding: 8px 12px;
    border-bottom: 1px solid var(--border-color);
    vertical-align: top;
}

.dev-table td:first-child {
    width: 120px;
    color: var(--text-secondary);
}

.dev-table code {
    background: var(--bg-primary);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 12px;
}

.dev-table pre {
    margin: 0;
    white-space: pre-wrap;
    word-break: break-word;
    font-size: 12px;
    max-height: 200px;
    overflow-y: auto;
}

/* Email attachments */
.email-attachments {
    margin-bottom: 16px;
    padding: 12px 16px;
    background: var(--bg-primary);
    border-radius: 8px;
}

.email-attachments-header {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.email-attachments-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.attachment-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 13px;
    transition: all 0.15s ease;
}

.attachment-item:hover {
    border-color: #808080;
    background: var(--bg-tertiary);
}

.attachment-item i {
    color: var(--text-muted);
}

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