/* ========================================
   Minimal Design System
   Philosophy: Warm paper, rich ink, selective presence
   ======================================== */

:root {
    /* Paper tones—warm, not clinical white */
    --paper: #f8f6f3;
    --paper-soft: #f3f1ed;
    --paper-accent: #eae7e1;

    /* Ink hierarchy—rich, not harsh black */
    --ink: #2c2825;
    --ink-soft: #5c5651;
    --ink-muted: #8a847d;
    --ink-whisper: #b8b2aa;

    /* Olive accent—used sparingly like a highlighter pen */
    --olive: #7d8c5c;
    --olive-dark: #5c6b42;
    --olive-soft: rgba(125, 140, 92, 0.15);
    --olive-muted: #9ba87a;

    /* Lines—barely there */
    --line: rgba(120, 113, 108, 0.12);
    --line-emphasis: rgba(120, 113, 108, 0.25);

    /* Spacing scale */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2.5rem;
    --space-2xl: 4rem;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background-color: var(--paper);
    color: var(--ink);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1.65;
}

/* ========================================
   Auth Container
   ======================================== */

.auth-container {
    background: var(--paper);
    padding: var(--space-xl);
    width: 100%;
    max-width: 360px;
}

.auth-container h1 {
    text-align: center;
    margin-bottom: var(--space-xl);
    color: var(--ink);
    font-size: 1.5rem;
    font-weight: 500;
    letter-spacing: -0.01em;
}

/* ========================================
   Form Elements
   ======================================== */

.form-group {
    margin-bottom: var(--space-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--space-sm);
    color: var(--ink-muted);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.form-group input {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: 4px;
    font-size: 1rem;
    color: var(--ink);
    transition: border-color 150ms ease;
}

.form-group input:focus {
    outline: none;
    border-color: var(--olive-muted);
    box-shadow: 0 0 0 2px var(--olive-soft);
}

.form-group input::placeholder {
    color: var(--ink-whisper);
}

/* ========================================
   Buttons
   ======================================== */

.btn-primary {
    width: 100%;
    padding: 0.75rem 1.25rem;
    background: var(--olive);
    color: var(--paper);
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 150ms ease;
}

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

.btn-primary:disabled {
    background: var(--ink-whisper);
    cursor: not-allowed;
}

.btn-secondary {
    width: 100%;
    padding: 0.75rem 1.25rem;
    background: transparent;
    color: var(--ink);
    border: 1px solid var(--line-emphasis);
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: border-color 150ms ease;
}

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

/* ========================================
   Messages
   ======================================== */

.error-message {
    color: #a65d57;
    font-size: 0.875rem;
    margin-bottom: var(--space-md);
    text-align: center;
    min-height: 1.25rem;
}

.success-message {
    color: var(--olive-dark);
    font-size: 0.875rem;
    margin-bottom: var(--space-md);
    text-align: center;
}

/* ========================================
   Links
   ======================================== */

.register-link,
.login-link {
    text-align: center;
    margin-top: var(--space-xl);
    color: var(--ink-muted);
    font-size: 0.875rem;
}

.register-link a,
.login-link a {
    color: var(--ink);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 150ms ease;
}

.register-link a:hover,
.login-link a:hover {
    border-bottom-color: var(--ink-muted);
}

.auth-links {
    margin-top: var(--space-xl);
    text-align: center;
}

.auth-links p {
    margin-bottom: var(--space-sm);
    color: var(--ink-muted);
    font-size: 0.875rem;
}

.auth-links a {
    color: var(--ink);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 150ms ease;
}

.auth-links a:hover {
    border-bottom-color: var(--ink-muted);
}

/* ========================================
   Info Container (Landing Page)
   ======================================== */

.info-container {
    background: var(--paper);
    padding: var(--space-xl);
    max-width: 560px;
    width: 100%;
}

.info-container h1 {
    margin-bottom: var(--space-md);
    color: var(--ink);
    font-size: 1.5rem;
    font-weight: 500;
    letter-spacing: -0.01em;
}

.info-container h3 {
    margin-top: var(--space-xl);
    margin-bottom: var(--space-md);
    color: var(--ink);
    font-size: 1rem;
    font-weight: 600;
}

.info-container p {
    color: var(--ink-soft);
    line-height: 1.65;
    margin-bottom: var(--space-md);
}

.info-container ul {
    margin-left: var(--space-lg);
    color: var(--ink-soft);
    margin-bottom: var(--space-md);
}

.info-container li {
    margin-bottom: var(--space-xs);
}

/* ========================================
   Endpoint List
   ======================================== */

.endpoint-list {
    background: var(--paper-soft);
    padding: var(--space-md);
    border-radius: 4px;
    margin: var(--space-md) 0;
}

.endpoint-list code {
    display: block;
    padding: var(--space-sm) 0;
    font-family: 'JetBrains Mono', 'SF Mono', Monaco, monospace;
    font-size: 0.875rem;
    color: var(--ink-soft);
}

.endpoint-list code:first-child {
    padding-top: 0;
}

.endpoint-list code:last-child {
    padding-bottom: 0;
}

/* ========================================
   Page Links
   ======================================== */

.links {
    margin-top: var(--space-xl);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--line);
}

.links a {
    color: var(--ink);
    text-decoration: none;
    margin-right: var(--space-lg);
    font-size: 0.875rem;
    border-bottom: 1px solid transparent;
    transition: border-color 150ms ease;
}

.links a:hover {
    border-bottom-color: var(--ink-muted);
}

/* ========================================
   Admin Page
   ======================================== */

.admin-container {
    background: var(--paper);
    padding: var(--space-xl);
    max-width: 900px;
    width: 100%;
    min-height: 100vh;
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--line);
}

.admin-header h1 {
    color: var(--ink);
    font-size: 1.5rem;
    font-weight: 500;
    letter-spacing: -0.01em;
}

/* User Table */
.user-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: var(--space-lg);
}

.user-table th,
.user-table td {
    padding: var(--space-md);
    text-align: left;
    border-bottom: 1px solid var(--line);
}

.user-table th {
    color: var(--ink-muted);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.user-table td {
    color: var(--ink-soft);
    font-size: 0.875rem;
}

.user-table tr:hover {
    background: var(--paper-soft);
}

/* Role Badge */
.role-badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
}

.role-badge.root {
    background: var(--olive-soft);
    color: var(--olive-dark);
}

.role-badge.admin {
    background: rgba(92, 107, 66, 0.15);
    color: #5c6b42;
}

.role-badge.user {
    background: var(--paper-accent);
    color: var(--ink-muted);
}

/* Role Select */
.role-select {
    padding: 0.375rem 0.5rem;
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: 4px;
    font-size: 0.875rem;
    color: var(--ink);
    cursor: pointer;
}

.role-select:focus {
    outline: none;
    border-color: var(--olive-muted);
}

.role-select:disabled {
    background: var(--paper-soft);
    color: var(--ink-whisper);
    cursor: not-allowed;
}

/* Admin Login Form */
.admin-login-container {
    background: var(--paper);
    padding: var(--space-xl);
    width: 100%;
    max-width: 360px;
}

.admin-login-container h1 {
    text-align: center;
    margin-bottom: var(--space-xl);
    color: var(--ink);
    font-size: 1.5rem;
    font-weight: 500;
}

/* Stats */
.admin-stats {
    display: flex;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.stat-card {
    background: var(--paper-soft);
    padding: var(--space-lg);
    border-radius: 4px;
    flex: 1;
}

.stat-card .stat-label {
    color: var(--ink-muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-card .stat-value {
    color: var(--ink);
    font-size: 1.5rem;
    font-weight: 500;
    margin-top: var(--space-xs);
}

/* Loading */
.loading {
    text-align: center;
    padding: var(--space-xl);
    color: var(--ink-muted);
}

/* Hidden */
.hidden {
    display: none !important;
}

/* ========================================
   Tabs
   ======================================== */

.admin-tabs {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-xl);
    border-bottom: 1px solid var(--line);
    padding-bottom: var(--space-sm);
}

.tab-btn {
    padding: 0.5rem 1rem;
    background: transparent;
    border: none;
    color: var(--ink-muted);
    font-size: 0.875rem;
    cursor: pointer;
    position: relative;
    transition: color 150ms ease;
}

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

.tab-btn.active {
    color: var(--ink);
    font-weight: 500;
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: calc(-1 * var(--space-sm) - 1px);
    left: 0;
    right: 0;
    height: 2px;
    background: var(--olive);
}

.tab-content {
    display: none;
}

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

/* ========================================
   Section Header
   ======================================== */

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-lg);
}

.section-header h2 {
    color: var(--ink);
    font-size: 1.125rem;
    font-weight: 500;
}

.section-header .btn-primary {
    width: auto;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* ========================================
   Detail Panel
   ======================================== */

.detail-panel {
    margin-top: var(--space-xl);
    padding: var(--space-lg);
    background: var(--paper-soft);
    border-radius: 4px;
}

.detail-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--line);
}

.detail-header h3 {
    color: var(--ink);
    font-size: 1rem;
    font-weight: 500;
}

.detail-body h4 {
    color: var(--ink);
    font-size: 0.875rem;
    font-weight: 500;
    margin-top: var(--space-lg);
    margin-bottom: var(--space-md);
}

.detail-info p {
    color: var(--ink-soft);
    font-size: 0.875rem;
    margin-bottom: var(--space-sm);
}

.detail-info strong {
    color: var(--ink-muted);
}

.permission-actions {
    margin-bottom: var(--space-md);
}

.permission-actions .btn-secondary {
    width: auto;
    padding: 0.375rem 0.75rem;
    font-size: 0.75rem;
}

/* ========================================
   Modal
   ======================================== */

.modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-content {
    background: var(--paper);
    padding: var(--space-xl);
    border-radius: 8px;
    width: 100%;
    max-width: 440px;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-lg);
}

.modal-header h3 {
    color: var(--ink);
    font-size: 1.125rem;
    font-weight: 500;
}

.modal-actions {
    display: flex;
    gap: var(--space-md);
    margin-top: var(--space-lg);
}

.modal-actions .btn-secondary,
.modal-actions .btn-primary {
    flex: 1;
}

/* ========================================
   Buttons (Extended)
   ======================================== */

.btn-close {
    background: transparent;
    border: none;
    color: var(--ink-muted);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0;
    line-height: 1;
}

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

.btn-link {
    background: transparent;
    border: none;
    color: var(--olive);
    font-size: 0.875rem;
    cursor: pointer;
    padding: 0;
    text-decoration: none;
}

.btn-link:hover {
    color: var(--olive-dark);
    text-decoration: underline;
}

.btn-link-small {
    background: transparent;
    border: 1px solid var(--olive);
    color: var(--olive);
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    border-radius: 4px;
    cursor: pointer;
    transition: all 150ms ease;
}

.btn-link-small:hover {
    background: var(--olive);
    color: var(--paper);
}

.btn-danger-small {
    background: transparent;
    border: 1px solid #a65d57;
    color: #a65d57;
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    border-radius: 4px;
    cursor: pointer;
    transition: all 150ms ease;
}

.btn-danger-small:hover {
    background: #a65d57;
    color: var(--paper);
}

.btn-copy {
    padding: 0.375rem 0.75rem;
    background: var(--olive);
    color: var(--paper);
    border: none;
    border-radius: 4px;
    font-size: 0.75rem;
    cursor: pointer;
    white-space: nowrap;
}

.btn-copy:hover {
    background: var(--olive-dark);
}

/* ========================================
   Secret Display
   ======================================== */

.secret-display .warning-text {
    color: #a65d57;
    font-size: 0.875rem;
    margin-bottom: var(--space-lg);
    padding: var(--space-md);
    background: rgba(166, 93, 87, 0.1);
    border-radius: 4px;
}

.secret-value {
    font-family: 'JetBrains Mono', 'SF Mono', Monaco, monospace;
    font-size: 0.875rem;
    color: var(--ink);
    padding: var(--space-sm) var(--space-md);
    background: var(--paper-soft);
    border-radius: 4px;
    word-break: break-all;
}

.secret-value-container {
    display: flex;
    gap: var(--space-sm);
    align-items: center;
}

.secret-value-container .secret-value {
    flex: 1;
}

/* ========================================
   Additional Admin Styles
   ======================================== */

.action-buttons {
    display: flex;
    gap: var(--space-md);
}

/* 테이블 셀 내의 action-buttons */
td.action-buttons {
    display: table-cell;
}

td.action-buttons button {
    margin-right: var(--space-md);
}

td.action-buttons button:last-child {
    margin-right: 0;
}

.modal-large {
    max-width: 600px;
}

.modal-body {
    margin-bottom: var(--space-lg);
}

.service-info {
    background: var(--paper-soft);
    padding: var(--space-md);
    border-radius: 4px;
    margin-bottom: var(--space-lg);
}

.service-info p {
    color: var(--ink-soft);
    font-size: 0.875rem;
    margin-bottom: var(--space-xs);
}

.service-info p:last-child {
    margin-bottom: 0;
}

.section-header-small {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-md);
}

.section-header-small h4 {
    color: var(--ink);
    font-size: 0.875rem;
    font-weight: 500;
    margin: 0;
}

.btn-secondary-small {
    padding: 0.375rem 0.75rem;
    background: transparent;
    color: var(--ink);
    border: 1px solid var(--line-emphasis);
    border-radius: 4px;
    font-size: 0.75rem;
    cursor: pointer;
}

.btn-secondary-small:hover {
    border-color: var(--ink-muted);
}

.readonly-value {
    font-family: 'JetBrains Mono', 'SF Mono', Monaco, monospace;
    font-size: 0.875rem;
    color: var(--ink-muted);
    padding: var(--space-sm) var(--space-md);
    background: var(--paper-soft);
    border-radius: 4px;
}

.connected-services {
    color: var(--ink-muted);
    font-size: 0.75rem;
}

/* Modal Wide */
.modal-wide {
    max-width: 600px;
}

/* Status Badge */
.status-badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 500;
}

.status-badge.active {
    background: var(--olive-soft);
    color: var(--olive-dark);
}

.status-badge.inactive {
    background: rgba(166, 93, 87, 0.15);
    color: #a65d57;
}

/* User Info in Modal */
.user-info {
    background: var(--paper-soft);
    padding: var(--space-md);
    border-radius: 4px;
    margin-bottom: var(--space-lg);
}

.user-info p {
    color: var(--ink-soft);
    font-size: 0.875rem;
    margin: 0;
}

/* ========================================
   Dashboard (Index Page)
   ======================================== */

.dashboard-container {
    background: var(--paper);
    padding: var(--space-xl);
    max-width: 600px;
    width: 100%;
}

/* Dashboard Header */
.dashboard-header {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.dashboard-header .page-title {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--ink);
    margin: 0 0 var(--space-md) 0;
    letter-spacing: -0.02em;
}

.dashboard-header .page-title::after {
    content: '';
    display: block;
    width: 40px;
    height: 2px;
    background: var(--olive);
    margin: var(--space-sm) auto 0;
    border-radius: 1px;
}

/* Auth Buttons */
.auth-buttons {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
}

.auth-btn {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: 4px;
    border: none;
    background: transparent;
    color: var(--ink-muted);
    transition: color 150ms ease;
    cursor: pointer;
    text-decoration: none;
}

.auth-btn:hover {
    color: var(--ink);
}

.auth-btn svg {
    flex-shrink: 0;
}

.auth-btn-mypage:hover {
    color: var(--olive);
}

.auth-btn-logout:hover {
    color: var(--ink-soft);
}

.auth-divider {
    width: 1px;
    height: 12px;
    background: var(--line-emphasis);
}

.auth-email {
    color: var(--ink-muted);
    font-size: 0.75rem;
    max-width: 180px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Dashboard Content */
.dashboard-content {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.welcome-card {
    text-align: center;
    padding: var(--space-xl) var(--space-lg);
}

.welcome-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background: var(--olive-soft);
    border-radius: 50%;
    margin-bottom: var(--space-lg);
    color: var(--olive);
}

.welcome-card h2 {
    color: var(--ink);
    font-size: 1.125rem;
    font-weight: 500;
    margin-bottom: var(--space-sm);
}

.welcome-card p {
    color: var(--ink-muted);
    font-size: 0.875rem;
}

/* Hidden utility */
.hidden {
    display: none !important;
}