/* =============================================================================
   ThomasCRM — main stylesheet
   Pure CSS: custom properties, flexbox, grid, media queries.
   No build step required.
   ============================================================================= */

/* ── Reset & base ─────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --brand:        #2563eb;   /* primary blue */
    --brand-dark:   #1d4ed8;
    --brand-light:  #eff6ff;
    --success:      #16a34a;
    --warning:      #ca8a04;
    --danger:       #dc2626;
    --gray-50:      #f9fafb;
    --gray-100:     #f3f4f6;
    --gray-200:     #e5e7eb;
    --gray-400:     #9ca3af;
    --gray-600:     #4b5563;
    --gray-800:     #1f2937;
    --sidebar-w:    240px;
    --header-h:     60px;
    --radius:       6px;
    --shadow:       0 1px 3px rgba(0,0,0,.12);
    --font:         'Segoe UI', system-ui, sans-serif;
}

html { font-size: 16px; }

body {
    font-family: var(--font);
    color: var(--gray-800);
    background: var(--gray-50);
    min-height: 100vh;
    display: flex;
}

a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Sidebar ──────────────────────────────────────────────────────────────── */
.sidebar {
    width: var(--sidebar-w);
    background: #1e293b;
    color: #cbd5e1;
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; left: 0;
    height: 100vh;
    z-index: 100;
    transition: transform .25s ease;
}

.sidebar-brand {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid #334155;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sidebar-logo {
    max-width: 100%;
    max-height: 56px;
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: 4px;
}

.sidebar-brand span { font-size: 1.4rem; }

.sidebar-nav { flex: 1; padding: 1rem 0; }

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: .75rem;
    padding: .65rem 1.5rem;
    color: #94a3b8;
    font-size: .9rem;
    transition: background .15s, color .15s;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
    background: #334155;
    color: #fff;
    text-decoration: none;
}

.sidebar-nav a .nav-icon { font-size: 1.1rem; width: 1.25rem; text-align: center; }

.sidebar-section {
    padding: .35rem 1.5rem;
    font-size: .7rem;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: #64748b;
    margin-top: .75rem;
}

/* ── Main wrapper ─────────────────────────────────────────────────────────── */
.main-wrapper {
    margin-left: var(--sidebar-w);
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ── Top header ───────────────────────────────────────────────────────────── */
.topbar {
    height: var(--header-h);
    background: #fff;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    padding: 0 1.5rem;
    gap: 1rem;
    position: sticky;
    top: 0;
    z-index: 50;
}

.topbar-hamburger {
    display: none;
    background: none;
    border: none;
    font-size: 1.4rem;
    cursor: pointer;
    color: var(--gray-600);
}

.topbar-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-800);
    flex: 1;
}

/* ── Language switcher ────────────────────────────────────────────────────── */
.lang-switcher {
    display: flex;
    gap: .25rem;
    align-items: center;
}

.lang-btn {
    padding: .25rem .6rem;
    border-radius: var(--radius);
    font-size: .75rem;
    font-weight: 600;
    color: var(--gray-400);
    border: 1px solid transparent;
    text-decoration: none;
    transition: all .15s;
    letter-spacing: .03em;
}

.lang-btn:hover { color: var(--gray-800); text-decoration: none; }

.lang-btn-active {
    color: var(--brand);
    border-color: var(--brand);
    background: var(--brand-light);
}

/* ── User menu (topbar) ───────────────────────────────────────────────────── */
.user-menu { position: relative; }

.user-menu-btn {
    display: flex;
    align-items: center;
    gap: .5rem;
    background: none;
    border: none;
    cursor: pointer;
    padding: .25rem .5rem;
    border-radius: var(--radius);
    transition: background .15s;
}
.user-menu-btn:hover { background: var(--gray-100); }

.topbar-avatar {
    width: 32px; height: 32px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--gray-200);
}

.topbar-avatar-initials {
    width: 32px; height: 32px;
    border-radius: 50%;
    background: var(--brand);
    color: #fff;
    font-weight: 700;
    font-size: .85rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.topbar-username {
    font-size: .875rem;
    font-weight: 500;
    color: var(--gray-800);
    max-width: 140px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.user-dropdown {
    display: none;
    position: absolute;
    right: 0; top: calc(100% + .5rem);
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    box-shadow: 0 8px 24px rgba(0,0,0,.12);
    min-width: 200px;
    z-index: 300;
    overflow: hidden;
}
.user-dropdown.open { display: block; }

.user-dropdown-header {
    padding: .75rem 1rem;
    border-bottom: 1px solid var(--gray-100);
    background: var(--gray-50);
}

.user-dropdown-item {
    display: flex;
    align-items: center;
    gap: .6rem;
    padding: .65rem 1rem;
    font-size: .875rem;
    color: var(--gray-800);
    text-decoration: none;
    transition: background .12s;
}
.user-dropdown-item:hover { background: var(--gray-50); text-decoration: none; }
.user-dropdown-item-danger { color: var(--danger); }
.user-dropdown-item-danger:hover { background: #fff1f1; }

.user-dropdown-divider {
    border-top: 1px solid var(--gray-100);
    margin: .25rem 0;
}

/* ── Page content ─────────────────────────────────────────────────────────── */
.content {
    padding: 1.75rem 2rem;
    flex: 1;
}

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: .75rem;
}

.page-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--gray-800);
}

/* ── Cards ────────────────────────────────────────────────────────────────── */
.card {
    background: #fff;
    border-radius: var(--radius);
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.card-header {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .5rem;
}

.card-header h2 { font-size: 1rem; font-weight: 600; }

.card-body { padding: 1.25rem; }

/* ── Dashboard stat boxes ──────────────────────────────────────────────────── */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1.75rem;
}

.stat-box {
    background: #fff;
    border-radius: var(--radius);
    border: 1px solid var(--gray-200);
    padding: 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: var(--shadow);
}

.stat-icon {
    width: 44px; height: 44px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.stat-icon.blue   { background: #dbeafe; }
.stat-icon.green  { background: #dcfce7; }
.stat-icon.yellow { background: #fef9c3; }
.stat-icon.red    { background: #fee2e2; }

.stat-info p  { font-size: .8rem; color: var(--gray-600); }
.stat-info h3 { font-size: 1.6rem; font-weight: 700; }

/* ── Table ────────────────────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }

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

thead th {
    background: var(--gray-50);
    border-bottom: 2px solid var(--gray-200);
    padding: .6rem 1rem;
    text-align: left;
    font-weight: 600;
    white-space: nowrap;
    color: var(--gray-600);
    font-size: .8rem;
    text-transform: uppercase;
    letter-spacing: .04em;
}

tbody td {
    padding: .75rem 1rem;
    border-bottom: 1px solid var(--gray-100);
    vertical-align: middle;
}

tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: var(--gray-50); }

.actions { display: flex; gap: .4rem; flex-wrap: wrap; }

/* ── Buttons ──────────────────────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    padding: .45rem .9rem;
    border-radius: var(--radius);
    font-size: .875rem;
    font-weight: 500;
    cursor: pointer;
    border: 1px solid transparent;
    transition: background .15s, border-color .15s, color .15s;
    text-decoration: none;
    line-height: 1;
}

.btn-primary   { background: var(--brand);   color: #fff; }
.btn-primary:hover { background: var(--brand-dark); text-decoration: none; color: #fff; }

.btn-success   { background: var(--success); color: #fff; }
.btn-success:hover { background: #15803d; text-decoration: none; color: #fff; }

.btn-warning   { background: var(--warning); color: #fff; }
.btn-warning:hover { background: #a16207; text-decoration: none; color: #fff; }

.btn-danger    { background: var(--danger);  color: #fff; }
.btn-danger:hover { background: #b91c1c; text-decoration: none; color: #fff; }

.btn-secondary {
    background: #fff;
    color: var(--gray-600);
    border-color: var(--gray-200);
}
.btn-secondary:hover { background: var(--gray-100); text-decoration: none; color: var(--gray-800); }

.btn-sm { padding: .3rem .65rem; font-size: .8rem; }

/* ── Forms ────────────────────────────────────────────────────────────────── */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem;
}

.form-group { display: flex; flex-direction: column; gap: .35rem; }
.form-group.full { grid-column: 1 / -1; }

label {
    font-size: .85rem;
    font-weight: 500;
    color: var(--gray-600);
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="date"],
input[type="number"],
input[type="search"],
select,
textarea {
    width: 100%;
    padding: .55rem .75rem;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    font-family: var(--font);
    font-size: .9rem;
    color: var(--gray-800);
    background: #fff;
    transition: border-color .15s, box-shadow .15s;
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--brand);
    box-shadow: 0 0 0 3px rgba(37,99,235,.15);
}

textarea { resize: vertical; min-height: 100px; }

.form-actions {
    display: flex;
    gap: .75rem;
    margin-top: 1.25rem;
    flex-wrap: wrap;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1rem;
}

.form-section-label {
    font-size: .72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--gray-400);
    border-bottom: 1px solid var(--gray-100);
    padding-bottom: .4rem;
    margin: 1.25rem 0 .75rem;
}

@media (max-width: 600px) {
    .form-row { grid-template-columns: 1fr; }
}

/* ── Badges ───────────────────────────────────────────────────────────────── */
.badge {
    display: inline-block;
    padding: .2rem .55rem;
    border-radius: 999px;
    font-size: .72rem;
    font-weight: 600;
    letter-spacing: .02em;
    text-transform: capitalize;
}

.badge-pending      { background: #fef3c7; color: #92400e; }
.badge-in_progress  { background: #dbeafe; color: #1e40af; }
.badge-done         { background: #dcfce7; color: #166534; }
.badge-active       { background: #dcfce7; color: #166534; }
.badge-on_hold      { background: #fef9c3; color: #854d0e; }
.badge-completed    { background: #e0f2fe; color: #0369a1; }
.badge-cancelled    { background: #fee2e2; color: #991b1b; }
.badge-inactive     { background: #f1f5f9; color: #475569; }
.badge-maintenance  { background: #fef9c3; color: #854d0e; }
.badge-retired      { background: #f1f5f9; color: #94a3b8; }
.badge-low          { background: #f0fdf4; color: #166534; }
.badge-medium       { background: #fef9c3; color: #854d0e; }
.badge-high         { background: #fee2e2; color: #991b1b; }
/* Invoice statuses */
.badge-draft        { background: #f1f5f9; color: #475569; }
.badge-sent         { background: #dbeafe; color: #1e40af; }
.badge-paid         { background: #dcfce7; color: #166534; }
.badge-overdue      { background: #fee2e2; color: #991b1b; }

/* ── Alerts ───────────────────────────────────────────────────────────────── */
.alert {
    padding: .75rem 1rem;
    border-radius: var(--radius);
    margin-bottom: 1rem;
    font-size: .9rem;
    display: flex;
    align-items: flex-start;
    gap: .5rem;
}

.alert-success { background: #dcfce7; color: #166534; border: 1px solid #bbf7d0; }
.alert-error   { background: #fee2e2; color: #991b1b; border: 1px solid #fecaca; }
.alert-info    { background: #dbeafe; color: #1e40af; border: 1px solid #bfdbfe; }
.field-error   { display:block; color:var(--danger); font-size:.78rem; margin-top:.25rem; }

/* ── Empty state ──────────────────────────────────────────────────────────── */
.empty-state {
    padding: 3rem 1rem;
    text-align: center;
    color: var(--gray-400);
}

.empty-state .empty-icon { font-size: 2.5rem; margin-bottom: .75rem; }
.empty-state p { font-size: .9rem; margin-bottom: 1rem; }

/* ── Detail page ──────────────────────────────────────────────────────────── */
.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1rem;
    margin-bottom: 1rem;
}

.detail-item label {
    display: block;
    font-size: .75rem;
    text-transform: uppercase;
    letter-spacing: .05em;
    color: var(--gray-400);
    margin-bottom: .2rem;
}

.detail-item p { font-size: .95rem; color: var(--gray-800); }
.detail-item.full { grid-column: 1 / -1; }

/* ── Confirm delete modal (pure CSS) ─────────────────────────────────────── */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.45);
    z-index: 200;
    align-items: center;
    justify-content: center;
}

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

.modal {
    background: #fff;
    border-radius: var(--radius);
    padding: 2rem;
    max-width: 400px;
    width: 90%;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0,0,0,.2);
}

.modal h3 { margin-bottom: .5rem; }
.modal p  { color: var(--gray-600); font-size: .9rem; margin-bottom: 1.5rem; }
.modal .modal-actions { display: flex; gap: .75rem; justify-content: center; }

/* ── Responsive ───────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .main-wrapper {
        margin-left: 0;
    }

    .topbar-hamburger {
        display: block;
    }

    .content {
        padding: 1.25rem 1rem;
    }

    .stat-grid {
        grid-template-columns: 1fr 1fr;
    }

    .form-grid {
        grid-template-columns: 1fr;
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    .stat-grid { grid-template-columns: 1fr; }
}

/* ── Inline editing ───────────────────────────────────────────────────────── */
.ie-field {
    cursor: text;
    padding: 2px 6px;
    border-radius: var(--radius);
    transition: background .15s;
    min-height: 1.4em;
    display: block;
}
.ie-field:hover {
    background: var(--gray-100);
}
.ie-field::after {
    content: ' \270E';
    font-size: .65em;
    color: var(--gray-400);
    opacity: 0;
    transition: opacity .15s;
}
.ie-field:hover::after { opacity: 1; }

.ie-input {
    width: 100%;
    padding: .3rem .5rem;
    border: 2px solid var(--brand);
    border-radius: var(--radius);
    font-size: inherit;
    font-family: inherit;
    color: var(--gray-800);
    background: #fff;
    outline: none;
    resize: vertical;
}

h1.ie-title {
    cursor: text;
}
h1.ie-title-active {
    outline: none;
    border-bottom: 2px solid var(--brand);
    padding-bottom: 2px;
}