/**
 * SpecLab - Cadernos de Encargos e Especificações
 * Design System baseado no Guia de Estilo EXI v1.0
 */

:root {
    --color-primary: #2596be;
    --color-primary-dark: #1a7a9e;
    --color-primary-light: #e6f4f9;
    --color-primary-lighter: #f0f8fb;
    --color-success: #1a7f37;
    --color-warning: #b35c00;
    --color-error: #b42318;
    --color-muted: #667085;
    --color-bg: #f3f4f6;
    --color-bg-alt: #f8f9fa;
    --color-surface: #ffffff;
    --color-border: #e5e7eb;
    --color-text: #111827;
    --color-text-secondary: #374151;
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-size-xs: 11px;
    --font-size-sm: 12px;
    --font-size-base: 13px;
    --font-size-lg: 14px;
    --font-size-xl: 18px;
    --font-size-2xl: 24px;
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 12px;
    --spacing-lg: 18px;
    --spacing-xl: 24px;
    --spacing-2xl: 32px;
    --radius: 6px;
    --border-radius-sm: 6px;
    --border-radius-md: 10px;
    --border-radius-lg: 14px;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --transition-fast: 150ms ease-in-out;
    --transition-base: 250ms ease-in-out;
}

* { box-sizing: border-box; }

body {
    font-family: var(--font-family);
    background: var(--color-bg);
    margin: 0;
    color: var(--color-text);
    font-size: var(--font-size-base);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 { margin: 0; font-weight: 600; line-height: 1.2; }
h1 { font-size: 20px; font-weight: 700; }
h2 { font-size: 16px; }
h3 { font-size: var(--font-size-lg); }
h4 { font-size: var(--font-size-base); }
a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-primary-dark); }

/* ---- LOGIN ---- */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--color-primary-lighter) 0%, var(--color-primary-light) 50%, color-mix(in srgb, var(--color-primary) 15%, white) 100%);
}

.login-box {
    background: var(--color-surface);
    border-radius: var(--border-radius-lg);
    padding: 40px;
    width: 100%;
    max-width: 420px;
    text-align: center;
    box-shadow: 0 20px 60px color-mix(in srgb, var(--color-primary) 12%, transparent), 0 1px 3px rgba(0,0,0,0.08);
}

.login-box img {
    height: 64px;
    margin-bottom: var(--spacing-lg);
}

.login-box h1 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-xl);
}

.login-box p {
    color: var(--color-muted);
    font-size: var(--font-size-sm);
    margin: 0 0 var(--spacing-xl);
}

.login-box form { text-align: left; }

/* ---- LAYOUT ---- */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-md) var(--spacing-xl);
}

/* ---- HEADER ---- */
.app-header {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-md) var(--spacing-xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.app-header .logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.app-header .logo img { height: 36px; }

.app-header .logo h1 {
    font-size: var(--font-size-lg);
    color: var(--color-primary);
}

.app-header .logo span {
    color: var(--color-muted);
    font-size: var(--font-size-sm);
    font-weight: 400;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.user-info {
    color: var(--color-muted);
    font-size: var(--font-size-sm);
    margin-right: var(--spacing-md);
}

/* ---- NAVIGATION ---- */
.nav-bar {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 0 var(--spacing-xl);
    display: flex;
    gap: var(--spacing-xs);
}

.nav-item {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--color-muted);
    border-bottom: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    display: inline-block;
}

.nav-item:hover {
    color: var(--color-primary);
    background: var(--color-primary-lighter);
}

.nav-item.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

/* ---- CARDS ---- */
.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-sm);
}

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

.card-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text);
}

/* ---- BUTTONS ---- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border: none;
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-base);
    font-weight: 500;
    font-family: var(--font-family);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
    line-height: 1.4;
}

.btn:hover { transform: translateY(-1px); }
.btn:focus-visible, .tab:focus-visible, .nav-item:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.btn-primary {
    background: var(--color-primary);
    color: white;
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    box-shadow: 0 4px 12px color-mix(in srgb, var(--color-primary) 30%, transparent);
    color: white;
}

.btn-outline-primary {
    background: var(--color-surface);
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
}

.btn-outline-primary:hover {
    background: var(--color-primary);
    color: white;
}

.btn-secondary {
    background: var(--color-surface);
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

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

.btn-success {
    background: var(--color-success);
    color: white;
}

.btn-success:hover {
    background: #157a30;
    box-shadow: 0 4px 12px rgba(26, 127, 55, 0.3);
}

.btn-danger {
    background: rgba(180, 35, 24, 0.1);
    color: var(--color-error);
    border: 1px solid rgba(180, 35, 24, 0.2);
}

.btn-danger:hover { background: rgba(180, 35, 24, 0.15); }

.btn-ghost {
    background: transparent;
    color: var(--color-primary);
    padding: 6px 12px;
}

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

.btn-sm { padding: 5px 10px; font-size: var(--font-size-sm); }
.btn-lg { padding: 12px 24px; font-size: var(--font-size-lg); width: 100%; justify-content: center; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

/* ---- FORMS ---- */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xs);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="date"],
input[type="number"],
input[type="search"],
select,
textarea {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    color: var(--color-text);
    background: var(--color-surface);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

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

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-primary) 15%, transparent);
}

input::placeholder, textarea::placeholder {
    color: #aaa;
}

input[type="checkbox"],
input[type="radio"] {
    accent-color: var(--color-primary);
    width: 18px;
    height: 18px;
    cursor: pointer;
}

/* ---- TABS ---- */
.tabs {
    display: flex;
    gap: var(--spacing-xs);
    border-bottom: 2px solid var(--color-border);
    margin-bottom: var(--spacing-lg);
    overflow-x: auto;
}

.tab {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--color-muted);
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
    background: none;
    border-top: none;
    border-left: none;
    border-right: none;
    font-family: var(--font-family);
}

.tab:hover { color: var(--color-primary); background: var(--color-primary-lighter); }
.tab.active { color: var(--color-primary); border-bottom-color: var(--color-primary); }

.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ---- TABLE ---- */
.table-wrap {
    overflow-x: auto;
    margin: var(--spacing-md) 0;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 10px 12px;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
    font-size: var(--font-size-sm);
}

th {
    background: var(--color-bg);
    font-weight: 600;
    color: var(--color-text-secondary);
    position: sticky;
    top: 0;
}

tr:hover { background: var(--color-primary-lighter); }

/* ---- ALERTS ---- */
.alert {
    padding: var(--spacing-md);
    border-radius: var(--border-radius-sm);
    margin-bottom: var(--spacing-md);
    border: 1px solid;
    font-size: var(--font-size-sm);
}

.alert-success { background: rgba(26, 127, 55, 0.1); color: var(--color-success); border-color: rgba(26, 127, 55, 0.35); }
.alert-warning { background: rgba(179, 92, 0, 0.1); color: var(--color-warning); border-color: rgba(179, 92, 0, 0.35); }
.alert-error { background: rgba(180, 35, 24, 0.1); color: var(--color-error); border-color: rgba(180, 35, 24, 0.35); }
.alert-info { background: var(--color-primary-light); color: var(--color-primary-dark); border-color: color-mix(in srgb, var(--color-primary) 35%, transparent); }

/* ---- PILLS / BADGES ---- */
.pill {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: var(--font-size-xs);
    font-weight: 500;
}

.pill-primary { background: var(--color-primary-light); color: var(--color-primary-dark); }
.pill-success { background: rgba(26, 127, 55, 0.1); color: var(--color-success); }
.pill-warning { background: rgba(179, 92, 0, 0.1); color: var(--color-warning); }
.pill-error { background: rgba(180, 35, 24, 0.1); color: var(--color-error); }
.pill-muted { background: var(--color-bg); color: var(--color-muted); }
.pill-info { background: #e0f2fe; color: #0369a1; }
.pill-danger { background: #fee2e2; color: #b91c1c; }

/* ---- MODAL ---- */
.modal-overlay {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    z-index: 9999;
    backdrop-filter: blur(2px);
    overflow-y: auto;
    padding: 32px 0;
}

.modal-box {
    background: white;
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl) var(--spacing-2xl);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    animation: modalIn 0.2s ease-out;
}

.modal-box-lg {
    max-width: 800px;
}

@keyframes modalIn {
    from { opacity: 0; transform: scale(0.95) translateY(-10px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

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

.modal-close {
    background: none;
    border: none;
    font-size: 20px;
    color: var(--color-muted);
    cursor: pointer;
    padding: 4px;
    line-height: 1;
}

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

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

/* ---- CONTENT GRID ---- */
.content-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-lg);
}

@media (min-width: 1024px) {
    .content-grid.with-sidebar {
        grid-template-columns: 5fr 3fr;
    }
}

.sidebar {
    position: sticky;
    top: 80px;
    align-self: start;
}

/* ---- STATS ---- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.stat-number {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-muted);
    margin-top: var(--spacing-xs);
}

/* ---- SEARCH & FILTERS ---- */
.search-filters {
    margin-bottom: var(--spacing-lg);
}
.sf-top {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
    margin-bottom: var(--spacing-sm);
}
.sf-search {
    flex: 1;
    padding: 10px 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 14px;
    background: white;
}
.sf-search:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-lighter);
}
.sf-filters {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 8px;
    align-items: center;
}
.sf-filters select {
    padding: 7px 10px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 13px;
    background: white;
    color: var(--color-text);
    cursor: pointer;
    width: 100%;
}
.sf-filters select:focus {
    outline: none;
    border-color: var(--color-primary);
}

/* ---- MULTI-SELECT DROPDOWN ---- */
.multi-select-wrap {
    position: relative;
}
.multi-select-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: white;
    cursor: pointer;
    font-size: 14px;
    color: #667085;
    min-height: 38px;
}
.multi-select-toggle:hover {
    border-color: var(--color-primary);
}
.multi-select-label.has-values {
    color: #111827;
}
.multi-select-label {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
}
.multi-select-arrow {
    font-size: 10px;
    margin-left: 8px;
    color: #999;
}
.multi-select-dropdown {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: 100;
    background: white;
    border: 1px solid var(--color-border);
    border-top: none;
    border-radius: 0 0 var(--radius) var(--radius);
    max-height: 220px;
    overflow-y: auto;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}
.multi-select-wrap.open .multi-select-dropdown {
    display: block;
}
.multi-select-wrap.open .multi-select-toggle {
    border-radius: var(--radius) var(--radius) 0 0;
    border-color: var(--color-primary);
}
.multi-select-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    cursor: pointer;
    font-size: 13px;
    color: #374151;
    transition: background 0.1s;
}
.multi-select-item:hover {
    background: var(--color-primary-lighter, #f0f7ff);
}
.multi-select-item input[type="checkbox"] {
    accent-color: var(--color-primary);
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

/* Legacy */
.search-bar {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    align-items: center;
    flex-wrap: wrap;
}
.search-bar input[type="search"] {
    flex: 1;
    min-width: 200px;
}

/* ---- FILE UPLOAD ---- */
.upload-zone {
    border: 2px dashed var(--color-border);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-2xl);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    background: var(--color-bg);
}

.upload-zone:hover,
.upload-zone.dragover {
    border-color: var(--color-primary);
    background: var(--color-primary-lighter);
}

.upload-zone .icon {
    font-size: 32px;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.upload-zone p {
    color: var(--color-muted);
    font-size: var(--font-size-sm);
    margin: var(--spacing-xs) 0 0;
}

.file-list {
    list-style: none;
    padding: 0;
    margin: var(--spacing-md) 0 0;
}

.file-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-bg);
    border-radius: var(--border-radius-sm);
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-sm);
}

.file-item .file-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.file-item .file-size {
    color: var(--color-muted);
    margin: 0 var(--spacing-md);
}

/* ---- PARAMETER TABLE EDITOR ---- */
.param-table {
    margin-top: var(--spacing-md);
}

.param-table input,
.param-table select {
    padding: 6px 8px;
    font-size: var(--font-size-sm);
}

.param-row {
    display: grid;
    grid-template-columns: 150px 1fr 1fr 120px 120px 40px;
    gap: var(--spacing-xs);
    align-items: center;
    margin-bottom: var(--spacing-xs);
}

.param-row.header {
    font-weight: 600;
    font-size: var(--font-size-xs);
    color: var(--color-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-sm);
}

.remove-btn {
    background: none;
    border: none;
    color: var(--color-error);
    cursor: pointer;
    font-size: 16px;
    padding: 4px;
    border-radius: 4px;
}

.remove-btn:hover { background: rgba(180, 35, 24, 0.1); }

/* ---- SECTION EDITOR ---- */
.section-block {
    background: var(--color-bg);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.section-block textarea {
    background: var(--color-surface);
}

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

/* ---- PREVIEW (PDF-like) ---- */
.preview-container {
    background: var(--color-surface);
    border: 1px solid var(--color-primary);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 4px 20px color-mix(in srgb, var(--color-primary) 10%, transparent), 0 1px 3px rgba(0,0,0,0.08);
    overflow: hidden;
}

.preview-header {
    background: var(--color-primary);
    color: white;
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.preview-header h3 { color: white; font-size: var(--font-size-base); }

.preview-body {
    padding: var(--spacing-lg);
    font-size: var(--font-size-sm);
    max-height: calc(100vh - 200px);
    overflow-y: auto;
}

.preview-body h4 {
    color: var(--color-primary);
    border-bottom: 1px solid var(--color-primary-light);
    padding-bottom: var(--spacing-xs);
    margin: var(--spacing-lg) 0 var(--spacing-sm);
    font-size: var(--font-size-base);
}

.preview-body h4:first-child { margin-top: 0; }

.preview-body p,
.preview-body div p {
    margin: 0 0 0.35em !important;
    line-height: 1.4;
    padding: 0;
}
.preview-body p:last-child,
.preview-body div p:last-child { margin-bottom: 0 !important; }

.preview-section-content {
    font-size: var(--font-size-sm);
    margin: 0 0 var(--spacing-xs);
    line-height: 1.4;
}

.preview-body table {
    font-size: var(--font-size-xs);
    margin: var(--spacing-sm) 0;
}

.preview-body table th {
    background: var(--color-primary);
    color: white;
    font-size: var(--font-size-xs);
    padding: 5px 8px;
}

.preview-body table td {
    padding: 4px 8px;
}

.preview-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.preview-logo img { height: 40px; }

.preview-meta {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xs);
    font-size: var(--font-size-xs);
    color: var(--color-muted);
    padding: var(--spacing-sm);
    background: var(--color-bg);
    border-radius: var(--border-radius-sm);
    margin-bottom: var(--spacing-md);
}

.preview-meta .meta-full { grid-column: 1 / -1; }
.preview-meta strong { color: var(--color-text); }

/* ---- PUBLIC VIEW ---- */
.public-page {
    max-width: 900px;
    margin: var(--spacing-2xl) auto;
    padding: 0 var(--spacing-xl);
}

.public-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.public-header img { height: 56px; margin-bottom: var(--spacing-md); }

.password-form {
    max-width: 400px;
    margin: var(--spacing-2xl) auto;
    text-align: center;
}

/* ---- EMPTY STATE ---- */
.empty-state {
    text-align: center;
    padding: calc(var(--spacing-2xl) * 2);
    color: var(--color-muted);
}

.empty-state .icon {
    font-size: 48px;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

/* ---- SPINNER ---- */
.spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: var(--spacing-xl) auto;
}

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

/* ---- TOAST ---- */
.toast-container {
    position: fixed;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.toast {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-lg);
    font-size: var(--font-size-sm);
    animation: slideIn 0.3s ease-out;
    min-width: 250px;
    max-width: 400px;
}

.toast-success { background: var(--color-success); color: white; }
.toast-error { background: var(--color-error); color: white; }
.toast-warning { background: var(--color-warning); color: white; }
.toast-info { background: var(--color-primary); color: white; }

@keyframes slideIn {
    from { opacity: 0; transform: translateX(100px); }
    to { opacity: 1; transform: translateX(0); }
}

/* ---- UTILITIES ---- */
.muted { color: var(--color-muted); font-size: var(--font-size-sm); }
.text-center { text-align: center; }
.text-right { text-align: right; }
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.hidden { display: none !important; }
.no-print { }

/* ---- SPECLAB FOOTER ---- */
.speclab-footer {
    text-align: center;
    padding: 16px 0;
    margin-top: 40px;
    font-size: 12px;
    color: #9ca3af;
    border-top: 1px solid #f3f4f6;
}
.speclab-footer strong {
    color: #6b7280;
    font-weight: 600;
}

/* ---- DROPDOWN MENU ---- */
.dropdown { position: relative; display: inline-block; }
.dropdown-menu {
    display: none;
    position: absolute;
    right: 0;
    top: 100%;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-md);
    min-width: 180px;
    z-index: 200;
    padding: var(--spacing-xs) 0;
}

.dropdown-menu.show { display: block; }

.dropdown-menu a,
.dropdown-menu button {
    display: block;
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    background: none;
    border: none;
    font-size: var(--font-size-sm);
    color: var(--color-text);
    cursor: pointer;
    font-family: var(--font-family);
}

.dropdown-menu a:hover,
.dropdown-menu button:hover {
    background: var(--color-primary-lighter);
    color: var(--color-primary);
}

.dropdown-divider {
    height: 1px;
    background: var(--color-border);
    margin: var(--spacing-xs) 0;
}

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
    .app-header { flex-wrap: wrap; gap: var(--spacing-sm); }
    .param-row { grid-template-columns: 1fr 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .search-bar { flex-direction: column; }
    .search-bar input[type="search"] { width: 100%; }
    .sf-top { flex-direction: column; }
    .sf-filters { grid-template-columns: 1fr 1fr; }
}

/* ---- PRINT STYLES ---- */
@media print {
    @page { size: A4; margin: 15mm; }

    body {
        font-size: 10pt;
        line-height: 1.3;
        color: #000;
        background: white;
    }

    .no-print,
    .app-header,
    .nav-bar,
    .search-bar,
    .btn,
    .toast-container,
    .modal-overlay { display: none !important; }

    .card {
        border: none;
        box-shadow: none;
        padding: 0;
    }

    .print-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding-bottom: 8pt;
        border-bottom: 2pt solid var(--color-primary);
        margin-bottom: 12pt;
    }

    .print-header .title { font-size: 14pt; font-weight: bold; color: var(--color-primary); }
    .print-header .subtitle { font-size: 9pt; color: #666; }
    .print-header img { height: 40pt; }

    table {
        page-break-inside: avoid;
        font-size: 9pt;
    }

    table th {
        background: var(--color-primary) !important;
        color: white !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
        padding: 3pt 5pt;
    }

    table td {
        padding: 2pt 5pt;
        border: 0.5pt solid #ccc;
    }

    .print-footer {
        display: flex;
        justify-content: space-between;
        font-size: 8pt;
        color: #666;
        border-top: 1pt solid #ddd;
        padding-top: 8pt;
        margin-top: 20pt;
    }

    .print-only { display: block !important; }
}

.print-only { display: none; }

/* ---- CATEGORY HEADER ---- */
.category-header {
    background: var(--color-primary);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    font-size: var(--font-size-sm);
    margin: var(--spacing-md) 0 var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* ---- INLINE EDIT ---- */
.editable-field {
    min-height: 20px;
    padding: 4px 8px;
    border: 1px dashed transparent;
    border-radius: 4px;
    cursor: text;
    transition: border-color var(--transition-fast);
}

.editable-field:hover { border-color: var(--color-border); }
.editable-field:focus {
    outline: none;
    border-color: var(--color-primary);
    background: var(--color-primary-lighter);
}

/* ---- ACCORDION ---- */
.accordion-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    cursor: pointer;
    background: var(--color-bg);
    border-radius: var(--border-radius-sm);
    transition: background var(--transition-fast);
    user-select: none;
}

.accordion-header:hover { background: var(--color-primary-lighter); }
.accordion-header .arrow { transition: transform var(--transition-fast); }
.accordion-header.open .arrow { transform: rotate(90deg); }
.accordion-body { padding: var(--spacing-md); display: none; }
.accordion-body.open { display: block; }

/* ---- SHARE LINK ---- */
.share-link {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
    background: var(--color-bg);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    margin-top: var(--spacing-sm);
}

.share-link input {
    flex: 1;
    background: var(--color-surface);
    font-size: var(--font-size-sm);
    font-family: monospace;
}

/* ---- FORM VALIDATION STATES ---- */
input:invalid:not(:placeholder-shown):not(:focus),
select:invalid:not(:placeholder-shown):not(:focus),
textarea:invalid:not(:placeholder-shown):not(:focus) {
    border-color: var(--color-error, #dc3545);
}

input:invalid:not(:placeholder-shown):not(:focus) ~ .field-error,
select:invalid:not(:placeholder-shown):not(:focus) ~ .field-error {
    display: block;
}

input:valid:not(:placeholder-shown) {
    border-color: var(--color-success, #1a7f37);
}

.field-error {
    color: var(--color-error, #dc3545);
    font-size: 0.85rem;
    margin-top: 0.25rem;
    min-height: 1.2em;
}

input:required + .field-error:empty,
select:required + .field-error:empty {
    min-height: 0;
}