/* ===================================================================
   components.css — 디자인 가이드 §7 / §8 컴포넌트 모음 (docs/12 §7)
   =================================================================== */

* { box-sizing: border-box; }

/* ---------- Layout shell ---------- */
.app-container {
    display: grid;
    grid-template-columns: var(--sidebar-width) 1fr;
    min-height: 100vh;
    transition: grid-template-columns var(--transition-normal);
}
body.sidebar-collapsed .app-container {
    grid-template-columns: var(--sidebar-collapsed-width) 1fr;
}

/* ---------- Sidebar ---------- */
.sidebar {
    background: var(--color-card);
    border-right: 1px solid var(--color-border);
    overflow: hidden;
    transition: width var(--transition-normal);
    display: flex; flex-direction: column;
}
.sidebar-header {
    height: var(--header-height);
    display: flex; align-items: center;
    padding: 0 var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}
.sidebar-logo {
    display: inline-flex; align-items: center; gap: var(--spacing-sm);
    font-weight: 700; color: var(--color-text);
}
.sidebar-logo i { color: var(--color-primary); font-size: 1.4rem; }
body.sidebar-collapsed .sidebar-logo span { display: none; }

.sidebar-nav { padding: var(--spacing-md) 0; overflow-y: auto; }
.nav-section { list-style: none; padding: 0 0 var(--spacing-md); margin: 0; }
.nav-section-title { padding: var(--spacing-sm) var(--spacing-lg); }
.nav-item {
    display: flex; align-items: center; gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    color: var(--color-text-secondary);
    border-left: 3px solid transparent;
    transition: background var(--transition-fast), color var(--transition-fast);
}
.nav-item:hover { background: var(--color-surface); color: var(--color-text); text-decoration: none; }
.nav-item.active {
    background: var(--color-surface);
    color: var(--color-primary);
    border-left-color: var(--color-primary);
    font-weight: 600;
}
body.sidebar-collapsed .nav-item span,
body.sidebar-collapsed .nav-section-title { display: none; }

/* ---------- Header ---------- */
.header {
    height: var(--header-height);
    background: var(--color-card);
    border-bottom: 1px solid var(--color-border);
    padding: 0 var(--spacing-lg);
    display: flex; align-items: center; justify-content: space-between;
    gap: var(--spacing-md);
    position: sticky; top: 0; z-index: 10;
}
.header-left, .header-right { display: flex; align-items: center; gap: var(--spacing-sm); }
.header-search {
    display: flex; align-items: center; gap: var(--spacing-xs);
    background: var(--color-surface);
    padding: 4px var(--spacing-sm);
    border-radius: var(--radius-md);
    min-width: 240px;
}
.header-search i { color: var(--color-text-secondary); }
.header-search input {
    border: 0; background: transparent; outline: none;
    color: var(--color-text); width: 100%;
}
.header-profile { display: flex; align-items: center; gap: var(--spacing-sm); }

/* ---------- Main content ---------- */
.main-content {
    background: var(--color-background);
    min-width: 0;
    display: flex; flex-direction: column;
}
.page-content { padding: var(--spacing-lg); flex: 1; }
.page-header {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: var(--spacing-lg); flex-wrap: wrap; gap: var(--spacing-sm);
}
.page-actions { display: flex; gap: var(--spacing-sm); flex-wrap: wrap; }

/* ---------- Auth shell ---------- */
.auth-shell {
    min-height: 100vh;
    background: var(--color-background);
    display: flex; align-items: center; justify-content: center;
    padding: var(--spacing-lg);
}
.auth-card {
    background: var(--color-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-xl);
    width: 100%; max-width: 420px;
    border: 1px solid var(--color-border);
}
.auth-card-header { text-align: center; margin-bottom: var(--spacing-lg); }
.auth-card-logo { font-size: 2.4rem; color: var(--color-primary); }
.auth-card-title { margin-top: var(--spacing-sm); }
.auth-card-subtitle { color: var(--color-text-secondary); margin-top: var(--spacing-xs); font-size: 0.929rem; }

/* ---------- Cards ---------- */
.card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-lg);
    overflow: hidden;
}
.card-header { padding: var(--spacing-md); border-bottom: 1px solid var(--color-border); }
.card-title  { margin: 0; }
.card-body   { padding: var(--spacing-md); }
.card-footer {
    padding: var(--spacing-md);
    border-top: 1px solid var(--color-border);
    display: flex; align-items: center; justify-content: space-between;
    flex-wrap: wrap; gap: var(--spacing-sm);
}

/* ---------- Stat grid ---------- */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}
.stat-card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    display: flex; gap: var(--spacing-md); align-items: center;
}
.stat-icon {
    width: 48px; height: 48px; flex-shrink: 0;
    border-radius: var(--radius-md);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.4rem; color: white;
}
.stat-icon.primary   { background: var(--color-primary); }
.stat-icon.secondary { background: var(--color-secondary); }
.stat-icon.warning   { background: var(--color-warning); }
.stat-icon.danger    { background: var(--color-danger); }
.stat-info { flex: 1; min-width: 0; }
.stat-change.positive { color: var(--color-success); font-size: 0.857rem; }
.stat-change.negative { color: var(--color-danger);  font-size: 0.857rem; }

/* ---------- Tables ---------- */
.table-responsive { overflow-x: auto; }
.data-table {
    width: 100%; border-collapse: collapse;
    font-size: 0.95rem;
}
.data-table th, .data-table td {
    text-align: left;
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
    vertical-align: middle;
}
.data-table th {
    background: var(--color-surface);
    color: var(--color-text-secondary);
    font-weight: 600;
    font-size: 0.857rem;
}
.data-table tbody tr:hover { background: var(--color-surface); }
.data-table tbody tr.is-deleted td { color: var(--color-text-secondary); text-decoration: line-through; }

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex; align-items: center; gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    font-size: 0.95rem; font-weight: 500;
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
    text-decoration: none;
    line-height: 1.2;
}
.btn:hover { text-decoration: none; }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }
.btn-block { display: flex; width: 100%; justify-content: center; }
.btn-sm    { padding: 4px var(--spacing-sm); font-size: 0.857rem; }

.btn-primary    { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.btn-primary:hover    { background: var(--color-primary-dark); border-color: var(--color-primary-dark); color: #fff; }
.btn-secondary  { background: var(--color-surface); color: var(--color-text); border-color: var(--color-border); }
.btn-secondary:hover  { background: var(--color-border); }
.btn-success    { background: var(--color-success); color: #fff; border-color: var(--color-success); }
.btn-warning    { background: var(--color-warning); color: #fff; border-color: var(--color-warning); }
.btn-danger     { background: var(--color-danger);  color: #fff; border-color: var(--color-danger); }
.btn-outline    { background: transparent; color: var(--color-text); border-color: var(--color-border); }
.btn-outline-danger {
    background: transparent;
    color: var(--color-danger);
    border-color: var(--color-danger);
}
.btn-outline-danger:hover { background: var(--color-danger); color: #fff; }
.btn-icon {
    background: transparent; border: 0;
    width: 36px; height: 36px;
    display: inline-flex; align-items: center; justify-content: center;
    font-size: 1.15rem; color: var(--color-text-secondary);
    border-radius: var(--radius-sm); cursor: pointer;
}
.btn-icon:hover { background: var(--color-surface); color: var(--color-text); }

/* ---------- Status badges ---------- */
.badge,
.status-badge,
.trust-badge {
    display: inline-flex; align-items: center; gap: 4px;
    padding: 2px var(--spacing-sm);
    border-radius: 99px;
    background: var(--color-surface);
    color: var(--color-text);
}
.status-badge.in-progress { background: rgba(21, 101, 192, 0.12); color: var(--color-secondary); }
.status-badge.completed,
.status-badge.normal      { background: rgba(56, 142, 60, 0.12); color: var(--color-success); }
.status-badge.follow-up,
.status-badge.warning     { background: rgba(245, 124, 0, 0.12); color: var(--color-warning); }
.status-badge.danger      { background: rgba(211, 47, 47, 0.12); color: var(--color-danger); }
.status-badge.offline     { background: var(--color-surface); color: var(--color-text-secondary); }

.trust-badge.verified  { background: rgba(56, 142, 60, 0.12); color: var(--color-success); }
.trust-badge.unverified { background: rgba(245, 124, 0, 0.12); color: var(--color-warning); }
.trust-badge.official  { background: rgba(21, 101, 192, 0.12); color: var(--color-secondary); }

.badge-list { display: flex; gap: var(--spacing-xs); flex-wrap: wrap; }

/* ---------- Forms ---------- */
.form-stack { display: flex; flex-direction: column; gap: var(--spacing-md); }
.form-row {
    display: flex; gap: var(--spacing-md); flex-wrap: wrap;
    align-items: flex-end;
}
.form-row > * { flex: 1; min-width: 180px; }
.form-row > .form-group-grow { flex: 3; }

.form-group { display: flex; flex-direction: column; gap: var(--spacing-xs); }
.form-control {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-border);
    background: var(--color-card);
    color: var(--color-text);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    width: 100%;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(46, 125, 50, 0.20);
}
.form-control[readonly] { background: var(--color-surface); }

.form-check { display: inline-flex; align-items: center; gap: var(--spacing-xs); }
.form-check.inline { margin-right: var(--spacing-md); }

/* ---------- Filter bar ---------- */
.filter-bar {
    display: flex; align-items: flex-end; gap: var(--spacing-sm);
    flex-wrap: wrap;
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}
.filter-bar .form-group { flex: 1; min-width: 160px; }

/* ---------- Tabs ---------- */
.tab-nav {
    display: flex; gap: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border);
    margin-bottom: var(--spacing-lg);
    overflow-x: auto;
}
.tab-link {
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 2px solid transparent;
    color: var(--color-text-secondary);
    font-weight: 500;
    white-space: nowrap;
}
.tab-link:hover { color: var(--color-text); text-decoration: none; }
.tab-link.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

/* ---------- Pagination ---------- */
.pagination {
    display: inline-flex; gap: 4px;
}
.page-link {
    display: inline-flex; align-items: center; justify-content: center;
    min-width: 32px; height: 32px;
    padding: 0 var(--spacing-sm);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text); background: var(--color-card);
}
.page-link:hover { background: var(--color-surface); text-decoration: none; }
.page-link.active {
    background: var(--color-primary); border-color: var(--color-primary); color: #fff;
}
.page-link.disabled { color: var(--color-text-secondary); cursor: not-allowed; }

/* ---------- Alerts ---------- */
.alert {
    display: flex; align-items: flex-start; gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-md);
    border: 1px solid transparent;
}
.alert-success { background: rgba(56, 142, 60, 0.10);  color: var(--color-success); border-color: rgba(56, 142, 60, 0.25); }
.alert-danger  { background: rgba(211, 47, 47, 0.10);  color: var(--color-danger);  border-color: rgba(211, 47, 47, 0.25); }
.alert-warning { background: rgba(245, 124, 0, 0.10);  color: var(--color-warning); border-color: rgba(245, 124, 0, 0.25); }
.alert-info    { background: rgba(21, 101, 192, 0.10); color: var(--color-secondary); border-color: rgba(21, 101, 192, 0.25); }

/* ---------- Empty state ---------- */
.empty-state {
    background: var(--color-card);
    border: 1px dashed var(--color-border);
    border-radius: var(--radius-md);
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--color-text-secondary);
}
.empty-state i { font-size: 2.4rem; color: var(--color-border); display: block; margin-bottom: var(--spacing-sm); }

/* ---------- Key-value list ---------- */
.key-value {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: var(--spacing-xs) var(--spacing-md);
}
.key-value dt {
    color: var(--color-text-secondary);
    font-size: 0.929rem;
    font-weight: 500;
}
.key-value dd { margin: 0; }

/* ---------- Inline form (action buttons in tables) ---------- */
.inline-form { display: inline; }

/* ---------- Mobile ---------- */
@media (max-width: 768px) {
    .app-container { grid-template-columns: 0 1fr; }
    .sidebar       { position: fixed; left: 0; top: 0; height: 100vh; width: var(--sidebar-width); z-index: 100;
                     transform: translateX(-100%); transition: transform var(--transition-normal); }
    body.sidebar-open .sidebar { transform: translateX(0); box-shadow: var(--shadow-lg); }
    .header-search { display: none; }
    .key-value     { grid-template-columns: 1fr; }
}