/* =============================================================
   CI System — base styles
   ============================================================= */

:root {
    --color-primary:        #2563eb;
    --color-primary-dark:   #1d4ed8;
    --color-primary-light:  #eff6ff;
    --color-sidebar-bg:     #0f172a;
    --color-sidebar-text:   #94a3b8;
    --color-sidebar-active: #1e3a5f;
    --color-bg:             #f1f5f9;
    --color-surface:        #ffffff;
    --color-border:         #e2e8f0;
    --color-text:           #0f172a;
    --color-text-muted:     #64748b;
    --color-success-bg:     #f0fdf4;
    --color-success-border: #86efac;
    --color-success-text:   #15803d;
    --color-error-bg:       #fef2f2;
    --color-error-border:   #f87171;
    --color-error-text:     #b91c1c;
    --color-warning-bg:     #fffbeb;
    --color-warning-border: #fbbf24;
    --color-warning-text:   #92400e;
    --color-danger:         #dc2626;
    --color-danger-dark:    #b91c1c;
    --sidebar-width:        240px;
    --topbar-height:        56px;
    --radius:               6px;
    --shadow-sm:            0 1px 3px rgba(0,0,0,.08);
    --shadow:               0 2px 8px rgba(0,0,0,.10);
}

*, *::before, *::after { box-sizing: border-box; }

html { height: 100%; }

body {
    margin: 0;
    font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    font-size: 15px;
    line-height: 1.5;
    color: var(--color-text);
    background: var(--color-bg);
    min-height: 100%;
}

a { color: var(--color-primary); }
a:hover { color: var(--color-primary-dark); }

code {
    font-family: 'Courier New', monospace;
    font-size: .875em;
    background: #f1f5f9;
    padding: 1px 5px;
    border-radius: 3px;
}

/* =============================================================
   Typography helpers
   ============================================================= */
.text-muted  { color: var(--color-text-muted); }

/* =============================================================
   Buttons
   ============================================================= */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: var(--radius);
    border: 1px solid transparent;
    font-size: .875rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    white-space: nowrap;
    transition: background .15s, border-color .15s, color .15s;
    line-height: 1.4;
}
.btn:focus-visible {
    outline: 3px solid rgba(37,99,235,.4);
    outline-offset: 2px;
}

.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: #fff;
    color: var(--color-text);
    border-color: var(--color-border);
}
.btn--secondary:hover { background: #f8fafc; color: var(--color-text); }

.btn--danger {
    background: #fff;
    color: var(--color-danger);
    border-color: #fca5a5;
}
.btn--danger:hover { background: var(--color-error-bg); }

.btn--sm {
    padding: 4px 10px;
    font-size: .8125rem;
}

.btn--full { width: 100%; justify-content: center; }

/* =============================================================
   Alerts
   ============================================================= */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius);
    border: 1px solid transparent;
    margin-bottom: 20px;
    font-size: .9rem;
}
.alert--success {
    background: var(--color-success-bg);
    border-color: var(--color-success-border);
    color: var(--color-success-text);
}
.alert--error {
    background: var(--color-error-bg);
    border-color: var(--color-error-border);
    color: var(--color-error-text);
}
.alert--warning {
    background: var(--color-warning-bg);
    border-color: var(--color-warning-border);
    color: var(--color-warning-text);
}
.alert__list {
    margin: 4px 0 0 16px;
    padding: 0;
}
.alert__list li { margin-bottom: 2px; }

/* =============================================================
   Forms
   ============================================================= */
.form { max-width: 560px; }

.form-group {
    margin-bottom: 18px;
}

.form-label {
    display: block;
    font-size: .875rem;
    font-weight: 600;
    color: #374151;
    margin-bottom: 5px;
}

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

.form-input {
    width: 100%;
    padding: 9px 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: .9375rem;
    font-family: inherit;
    color: var(--color-text);
    background: #fff;
    transition: border-color .15s, box-shadow .15s;
}
.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,.15);
}
.form-input:disabled {
    background: #f8fafc;
    color: var(--color-text-muted);
    cursor: not-allowed;
}

textarea.form-input { resize: vertical; min-height: 80px; }

select.form-input { appearance: auto; }

.form-hint {
    display: block;
    font-size: .8125rem;
    color: var(--color-text-muted);
    margin-top: 4px;
}

.form-error {
    display: block;
    font-size: .8125rem;
    color: var(--color-error-text);
    margin-top: 4px;
}

.form-check {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: .9375rem;
}
.form-check input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
}

.form-actions {
    display: flex;
    gap: 10px;
    align-items: center;
    margin-top: 24px;
}

/* =============================================================
   Cards
   ============================================================= */
.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
}

.card__body { padding: 20px 24px; }

.card__title {
    font-size: 1rem;
    font-weight: 600;
    margin: 0 0 12px;
    color: var(--color-text);
}

/* =============================================================
   Tables
   ============================================================= */
.table-wrapper { overflow-x: auto; }

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: .9rem;
}

.table th {
    text-align: left;
    padding: 10px 14px;
    font-size: .8125rem;
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: .04em;
    border-bottom: 2px solid var(--color-border);
    white-space: nowrap;
}

.table td {
    padding: 11px 14px;
    border-bottom: 1px solid var(--color-border);
    vertical-align: middle;
}

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

.table tbody tr:hover td { background: #f8fafc; }

.th-actions, .td-actions { text-align: right; white-space: nowrap; }
.td-actions { vertical-align: middle; }
.td-actions .btn,
.td-actions .inline-form { vertical-align: middle; }
.td-actions .inline-form { margin-left: 6px; }
.td-reorder { white-space: nowrap; }
.td-reorder form { margin: 0; }
.btn--reorder {
    background: #fff;
    color: var(--color-text-muted);
    border-color: var(--color-border);
    padding: 2px 6px;
    font-size: .875rem;
    line-height: 1;
    min-width: 1.6rem;
    justify-content: center;
}
.btn--reorder:hover:not(:disabled) { background: #f1f5f9; color: var(--color-text); }
.btn--reorder:disabled { opacity: .3; cursor: default; }

/* =============================================================
   Badges
   ============================================================= */
.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 99px;
    font-size: .75rem;
    font-weight: 600;
    white-space: nowrap;
}
.badge--success  { background: #dcfce7; color: #15803d; }
.badge--warning  { background: #fef9c3; color: #854d0e; }
.badge--info     { background: #dbeafe; color: #1e40af; }
.badge--neutral  { background: #f1f5f9; color: #475569; }
.badge--danger   { background: #fee2e2; color: #b91c1c; }

/* =============================================================
   Inline form (delete button beside edit link)
   ============================================================= */
.inline-form {
    display: inline;
    margin: 0;
    padding: 0;
}

/* =============================================================
   Quick links
   ============================================================= */
.quick-links {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.quick-links li a {
    font-weight: 500;
}

/* =============================================================
   Login layout
   ============================================================= */
.layout-login {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 24px 16px;
    background: var(--color-bg);
}

.login-box {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    box-shadow: var(--shadow);
    padding: 36px;
    width: 100%;
    max-width: 400px;
}

.login-box .form { max-width: none; }

.login-box__header { margin-bottom: 24px; }
.login-box__title  { margin: 0; font-size: 1.4rem; font-weight: 700; color: var(--color-text); }
.login-box__subtitle { margin: 4px 0 0; color: var(--color-text-muted); font-size: .9rem; }

/* =============================================================
   Error pages
   ============================================================= */
.layout-error {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}
.error-page {
    text-align: center;
    padding: 40px 24px;
}
.error-page h1 { font-size: 1.75rem; color: var(--color-text); }
.error-page p  { color: var(--color-text-muted); }