/**
 * Ginca Design System - Material Design 3 (M3) Specification
 * WCAG 2.2 AA Accessible, Responsive, Semantic Design Tokens
 */

:root {
    /* 1. M3 Semantic Color Tokens (Light Theme Default) */
    --md-sys-color-primary: #1a56db;
    --md-sys-color-on-primary: #ffffff;
    --md-sys-color-primary-container: #e0e7ff;
    --md-sys-color-on-primary-container: #1e3a8a;
    --md-sys-color-primary-hover: #1d4ed8;

    --md-sys-color-secondary: #475569;
    --md-sys-color-on-secondary: #ffffff;
    --md-sys-color-secondary-container: #f1f5f9;
    --md-sys-color-on-secondary-container: #0f172a;

    --md-sys-color-tertiary: #b45309;
    --md-sys-color-on-tertiary: #ffffff;
    --md-sys-color-tertiary-container: #fef3c7;
    --md-sys-color-on-tertiary-container: #78350f;

    --md-sys-color-surface: #f8fafc;
    --md-sys-color-on-surface: #0f172a;
    --md-sys-color-surface-variant: #f1f5f9;
    --md-sys-color-on-surface-variant: #475569;

    /* Tonal Surface Elevation */
    --md-sys-color-surface-container-lowest: #ffffff;
    --md-sys-color-surface-container-low: #f8fafc;
    --md-sys-color-surface-container: #f1f5f9;
    --md-sys-color-surface-container-high: #e2e8f0;
    --md-sys-color-surface-container-highest: #cbd5e1;

    --md-sys-color-outline: #cbd5e1;
    --md-sys-color-outline-variant: #e2e8f0;
    --md-sys-color-outline-focus: #1a56db;

    --md-sys-color-error: #dc2626;
    --md-sys-color-on-error: #ffffff;
    --md-sys-color-error-container: #fee2e2;
    --md-sys-color-on-error-container: #991b1b;

    --md-sys-color-success: #16a34a;
    --md-sys-color-on-success: #ffffff;
    --md-sys-color-success-container: #dcfce7;
    --md-sys-color-on-success-container: #166534;

    --md-sys-color-warning: #d97706;
    --md-sys-color-on-warning: #ffffff;
    --md-sys-color-warning-container: #fef3c7;
    --md-sys-color-on-warning-container: #92400e;

    /* 2. Backward Compatibility Mappings for Existing Components */
    --primary: var(--md-sys-color-primary);
    --primary-hover: var(--md-sys-color-primary-hover);
    --primary-light: var(--md-sys-color-primary-container);
    --primary-border: var(--md-sys-color-outline);

    --success: var(--md-sys-color-success);
    --success-hover: #15803d;
    --success-bg: var(--md-sys-color-success-container);
    --success-border: #86efac;
    --success-text: var(--md-sys-color-on-success-container);

    --warning: var(--md-sys-color-warning);
    --warning-hover: #b45309;
    --warning-bg: var(--md-sys-color-warning-container);
    --warning-border: #fde68a;
    --warning-text: var(--md-sys-color-on-warning-container);

    --danger: var(--md-sys-color-error);
    --danger-hover: #b91c1c;
    --danger-bg: var(--md-sys-color-error-container);
    --danger-border: #fca5a5;
    --danger-text: var(--md-sys-color-on-error-container);

    --bg-main: var(--md-sys-color-surface);
    --bg-card: var(--md-sys-color-surface-container-lowest);
    --surface: var(--md-sys-color-surface-container-lowest);

    --text-main: var(--md-sys-color-on-surface);
    --text-muted: var(--md-sys-color-on-surface-variant);
    --text-light: #64748b;

    --border: var(--md-sys-color-outline-variant);
    --border-subtle: #f1f5f9;

    /* 3. Shapes & Corner Radii */
    --radius-xs: 4px;
    --radius-sm: 8px;
    --radius: 12px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* 4. Elevation (Tonal & Shadows) */
    --shadow-sm: 0 1px 2px 0 rgb(15 23 42 / 0.05);
    --shadow: 0 2px 4px -1px rgb(15 23 42 / 0.06), 0 4px 6px -1px rgb(15 23 42 / 0.08);
    --shadow-md: 0 4px 6px -1px rgb(15 23 42 / 0.08), 0 10px 15px -3px rgb(15 23 42 / 0.08);
    --shadow-lg: 0 10px 25px -5px rgb(15 23 42 / 0.1), 0 8px 10px -6px rgb(15 23 42 / 0.06);
    --shadow-xl: 0 20px 25px -5px rgb(15 23 42 / 0.15), 0 8px 10px -6px rgb(15 23 42 / 0.08);

    /* 5. Motion Tokens */
    --motion-standard: cubic-bezier(0.2, 0.0, 0, 1.0);
    --motion-duration-short: 150ms;
    --motion-duration-medium: 250ms;
}

/* Base Reset & Typography */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    scrollbar-width: thin;
    scrollbar-color: var(--md-sys-color-outline-variant) transparent;
}

::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--md-sys-color-outline-variant);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--md-sys-color-outline);
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--md-sys-color-surface);
    color: var(--md-sys-color-on-surface);
    line-height: 1.5;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Accessibility Focus Ring */
:focus-visible {
    outline: 2px solid var(--md-sys-color-primary);
    outline-offset: 2px;
}

/* SVG Icon Helper */
.md-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    vertical-align: middle;
    flex-shrink: 0;
}

/* Header & Top Navigation Bar (M3 App Bar) */
.app-header {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 1px 3px rgba(15, 23, 42, 0.03);
    transition: box-shadow var(--motion-duration-short) var(--motion-standard);
}

.header-container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0.75rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--md-sys-color-primary);
    font-weight: 800;
    font-size: 1.25rem;
    letter-spacing: -0.025em;
    user-select: none;
}

.brand-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--md-sys-color-primary);
    color: var(--md-sys-color-on-primary);
    border-radius: var(--radius-sm);
    box-shadow: 0 2px 4px rgba(26, 86, 219, 0.25);
}

.brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.brand-name {
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--md-sys-color-on-surface);
}

.brand-tag {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--md-sys-color-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.app-nav {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    text-decoration: none;
    color: var(--md-sys-color-on-surface-variant);
    font-weight: 600;
    font-size: 0.875rem;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    transition: all var(--motion-duration-short) var(--motion-standard);
    border: none;
    background: transparent;
    cursor: pointer;
}

.nav-link:hover {
    color: var(--md-sys-color-primary);
    background-color: var(--md-sys-color-surface-container);
}

.nav-link.active {
    color: var(--md-sys-color-on-primary-container);
    background-color: var(--md-sys-color-primary-container);
    font-weight: 700;
}

/* User Profile Chip in Nav */
.user-profile-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.35rem 0.75rem 0.35rem 0.35rem;
    background: var(--md-sys-color-surface-container);
    border: 1px solid var(--md-sys-color-outline-variant);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--md-sys-color-on-surface);
}

.user-profile-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--md-sys-color-primary);
    color: var(--md-sys-color-on-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}

/* Main Layout */
.app-main {
    max-width: 1240px;
    margin: 2rem auto 4rem auto;
    padding: 0 1.5rem;
    width: 100%;
    box-sizing: border-box;
    display: block;
}

/* M3 Buttons */
.btn {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    min-height: 40px;
    padding: 0.55rem 1.25rem;
    font-weight: 600;
    font-size: 0.9rem;
    font-family: inherit;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    transition: background-color var(--motion-duration-short) var(--motion-standard),
                box-shadow var(--motion-duration-short) var(--motion-standard),
                transform var(--motion-duration-short) var(--motion-standard);
    text-decoration: none;
    box-sizing: border-box;
    white-space: nowrap;
    user-select: none;
}

.btn:active {
    transform: scale(0.98);
}

.btn-primary, .btn-filled {
    background: var(--md-sys-color-primary);
    color: var(--md-sys-color-on-primary);
    border-color: var(--md-sys-color-primary);
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover:not(:disabled), .btn-filled:hover:not(:disabled) {
    background: var(--md-sys-color-primary-hover);
    border-color: var(--md-sys-color-primary-hover);
    box-shadow: var(--shadow);
}

.btn-tonal {
    background: var(--md-sys-color-secondary-container);
    color: var(--md-sys-color-on-secondary-container);
    border-color: transparent;
}

.btn-tonal:hover:not(:disabled) {
    background: var(--md-sys-color-surface-container-high);
}

.btn-outline, .btn-outlined {
    background: var(--md-sys-color-surface-container-lowest);
    border: 1px solid var(--md-sys-color-outline);
    color: var(--md-sys-color-on-surface);
}

.btn-outline:hover:not(:disabled), .btn-outlined:hover:not(:disabled) {
    background: var(--md-sys-color-surface-container);
    border-color: var(--md-sys-color-on-surface-variant);
}

.btn-danger {
    background: var(--md-sys-color-error);
    color: var(--md-sys-color-on-error);
    border-color: var(--md-sys-color-error);
    box-shadow: var(--shadow-sm);
}

.btn-danger:hover:not(:disabled) {
    background: var(--danger-hover);
    border-color: var(--danger-hover);
    box-shadow: var(--shadow);
}

.btn-success {
    background: var(--md-sys-color-success);
    color: var(--md-sys-color-on-success);
    border-color: var(--md-sys-color-success);
    box-shadow: var(--shadow-sm);
}

.btn-success:hover:not(:disabled) {
    background: var(--success-hover);
    border-color: var(--success-hover);
    box-shadow: var(--shadow);
}

.btn-icon {
    width: 38px;
    height: 38px;
    min-height: 38px;
    padding: 0;
    border-radius: var(--radius-sm);
}

.btn-sm {
    min-height: 32px;
    padding: 0.35rem 0.75rem;
    font-size: 0.825rem;
    border-radius: var(--radius-xs);
}

.btn-lg {
    min-height: 48px;
    padding: 0.75rem 1.75rem;
    font-size: 1rem;
    border-radius: var(--radius-md);
}

.btn-block {
    width: 100%;
}

.btn:disabled {
    opacity: 0.55;
    cursor: not-allowed;
    pointer-events: none;
}

/* Forms & Outlined Inputs (Material Design 3 Style) */
.form-group {
    margin-bottom: 1.25rem;
    display: flex;
    flex-direction: column;
}

.form-label, label {
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
    color: var(--md-sys-color-on-surface);
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    width: 100%;
}

.input-icon {
    position: absolute;
    left: 0.85rem;
    color: var(--md-sys-color-on-surface-variant);
    pointer-events: none;
    display: flex;
    align-items: center;
}

.input-action-btn {
    position: absolute;
    right: 0.75rem;
    background: none;
    border: none;
    padding: 0.35rem;
    cursor: pointer;
    color: var(--md-sys-color-on-surface-variant);
    display: flex;
    align-items: center;
    border-radius: var(--radius-xs);
    transition: color var(--motion-duration-short);
}

.input-action-btn:hover {
    color: var(--md-sys-color-primary);
}

.form-input,
input[type="text"],
input[type="email"],
input[type="password"],
input[type="tel"],
input[type="number"],
input[type="datetime-local"],
select.form-input,
select,
textarea.form-input,
textarea {
    width: 100%;
    min-height: 42px;
    padding: 0.65rem 0.95rem;
    border: 1.5px solid var(--md-sys-color-outline);
    border-radius: var(--radius-sm);
    font-size: 0.925rem;
    font-family: inherit;
    color: var(--md-sys-color-on-surface);
    background: var(--md-sys-color-surface-container-lowest);
    outline: none;
    transition: border-color var(--motion-duration-short) var(--motion-standard),
                box-shadow var(--motion-duration-short) var(--motion-standard);
    box-sizing: border-box;
}

.input-with-icon {
    padding-left: 2.6rem !important;
}

.input-with-action {
    padding-right: 2.6rem !important;
}

.form-input:focus,
input:focus,
select:focus,
textarea:focus {
    border-color: var(--md-sys-color-primary);
    box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.15);
}

.form-input.is-invalid,
input.is-invalid {
    border-color: var(--md-sys-color-error);
    background-color: #fffbfa;
}

.form-input.is-invalid:focus,
input.is-invalid:focus {
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.15);
}

.field-error {
    color: var(--md-sys-color-error);
    font-size: 0.8rem;
    font-weight: 500;
    margin-top: 0.35rem;
    min-height: 1.1rem;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

/* Auth Cards & Layout */
.auth-page-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 180px);
    padding: 1.5rem 0;
}

.auth-card {
    background: var(--md-sys-color-surface-container-lowest);
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--md-sys-color-outline-variant);
    width: 100%;
    max-width: 440px;
    box-sizing: border-box;
    animation: authFadeIn var(--motion-duration-medium) var(--motion-standard);
}

@keyframes authFadeIn {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.auth-header {
    margin-bottom: 2rem;
    text-align: center;
}

.auth-header-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    background: var(--md-sys-color-primary-container);
    color: var(--md-sys-color-primary);
    border-radius: var(--radius-md);
    margin-bottom: 1rem;
}

.auth-card h2 {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--md-sys-color-on-surface);
    letter-spacing: -0.025em;
    margin-bottom: 0.4rem;
}

.auth-card .subtitle {
    color: var(--md-sys-color-on-surface-variant);
    font-size: 0.9rem;
}

.auth-footer {
    margin-top: 1.75rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--md-sys-color-outline-variant);
    text-align: center;
    font-size: 0.875rem;
    color: var(--md-sys-color-on-surface-variant);
}

.auth-footer a {
    color: var(--md-sys-color-primary);
    text-decoration: none;
    font-weight: 600;
}

.auth-footer a:hover {
    text-decoration: underline;
}

/* Universal Elevated Cards */
.dashboard-card {
    background: var(--md-sys-color-surface-container-lowest);
    padding: 1.75rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--md-sys-color-outline-variant);
    width: 100%;
    margin-bottom: 1.5rem;
    box-sizing: border-box;
    transition: box-shadow var(--motion-duration-short) var(--motion-standard);
}

.dashboard-card:hover {
    box-shadow: var(--shadow);
}

.dashboard-card h2 {
    font-size: 1.4rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    color: var(--md-sys-color-on-surface);
    letter-spacing: -0.02em;
}

.dashboard-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--md-sys-color-on-surface);
}

/* Page Header & Breadcrumbs */
.page-header {
    background: var(--md-sys-color-surface-container-lowest);
    padding: 1.5rem 1.75rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--md-sys-color-outline-variant);
    box-shadow: var(--shadow-sm);
    margin-bottom: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.breadcrumb-nav {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--md-sys-color-on-surface-variant);
    margin-bottom: 0.4rem;
}

.breadcrumb-nav a {
    color: var(--md-sys-color-primary);
    text-decoration: none;
    font-weight: 600;
}

.breadcrumb-nav a:hover {
    text-decoration: underline;
}

.breadcrumb-separator {
    color: var(--md-sys-color-outline);
}

/* Tabs (Material Design 3 Navigation) */
.tab-nav-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    margin-bottom: 1.5rem;
    width: 100%;
}

.tab-nav {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    border-bottom: 2px solid var(--md-sys-color-outline-variant);
    overflow-x: auto;
    overflow-y: hidden;
    padding: 2px 2px 0 2px;
    width: 100%;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    /* Hide native scrollbars across all browsers */
    scrollbar-width: none !important; /* Firefox */
    -ms-overflow-style: none !important; /* IE 10+ / Edge */
}

.tab-nav::-webkit-scrollbar {
    display: none !important; /* Chrome, Edge, Safari, Opera */
    width: 0 !important;
    height: 0 !important;
}

.tab-btn {
    padding: 0.65rem 1.15rem;
    min-height: 42px;
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px; /* Aligns indicator seamlessly with container bottom border */
    font-size: 0.875rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    color: var(--md-sys-color-on-surface-variant);
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    transition: color var(--motion-duration-short), background var(--motion-duration-short), border-color var(--motion-duration-short);
    white-space: nowrap;
    border-radius: var(--radius-xs) var(--radius-xs) 0 0;
    flex-shrink: 0;
    user-select: none;
}

.tab-btn:hover {
    color: var(--md-sys-color-on-surface);
    background: var(--md-sys-color-surface-container-high);
}

.tab-btn:focus-visible {
    outline: 2px solid var(--md-sys-color-primary);
    outline-offset: -2px;
}

.tab-btn.active {
    color: var(--md-sys-color-primary);
    border-bottom-color: var(--md-sys-color-primary);
    background: var(--md-sys-color-primary-container);
}

.tab-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    font-size: 0.725rem;
    font-weight: 700;
    border-radius: var(--radius-full);
    background: var(--md-sys-color-surface-container-highest);
    color: var(--md-sys-color-on-surface-variant);
    line-height: 1;
    transition: all var(--motion-duration-short);
}

.tab-btn:hover .tab-badge {
    background: var(--md-sys-color-surface-variant);
    color: var(--md-sys-color-on-surface);
}

.tab-btn.active .tab-badge {
    background: var(--md-sys-color-primary);
    color: var(--md-sys-color-on-primary);
}

/* Badges & Chips */
.user-badge, .badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    background: var(--md-sys-color-primary-container);
    color: var(--md-sys-color-on-primary-container);
    padding: 0.25rem 0.65rem;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
    line-height: 1;
}

.badge-success {
    background: var(--md-sys-color-success-container);
    color: var(--md-sys-color-on-success-container);
    border: 1px solid #bbf7d0;
}

.badge-warning {
    background: var(--md-sys-color-warning-container);
    color: var(--md-sys-color-on-warning-container);
    border: 1px solid #fde68a;
}

.badge-danger {
    background: var(--md-sys-color-error-container);
    color: var(--md-sys-color-on-error-container);
    border: 1px solid #fecaca;
}

.badge-neutral {
    background: var(--md-sys-color-surface-container);
    color: var(--md-sys-color-on-surface-variant);
    border: 1px solid var(--md-sys-color-outline-variant);
}

/* Alerts */
.alert {
    padding: 0.85rem 1.15rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    margin-bottom: 1.25rem;
    border: 1px solid transparent;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.alert-danger {
    background-color: var(--md-sys-color-error-container);
    color: var(--md-sys-color-on-error-container);
    border-color: #fecaca;
}

.alert-success {
    background-color: var(--md-sys-color-success-container);
    color: var(--md-sys-color-on-success-container);
    border-color: #bbf7d0;
}

.alert-warning {
    background-color: var(--md-sys-color-warning-container);
    color: var(--md-sys-color-on-warning-container);
    border-color: #fde68a;
}

/* Toasts (Snackbars) */
.md-toast-container {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    z-index: 9999;
    display: flex;
    flex-direction: column-reverse;
    gap: 0.75rem;
    max-width: 420px;
    width: calc(100% - 3rem);
    pointer-events: none;
}

.md-toast {
    pointer-events: auto;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.85rem 1.15rem;
    background: #1e293b;
    color: #ffffff;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    font-size: 0.875rem;
    font-weight: 500;
    line-height: 1.4;
    animation: toastSlideIn var(--motion-duration-medium) var(--motion-standard);
    transition: opacity var(--motion-duration-short), transform var(--motion-duration-short);
}

.md-toast--hiding {
    opacity: 0;
    transform: translateY(8px);
}

@keyframes toastSlideIn {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.md-toast--success {
    background: #064e3b;
    border-left: 4px solid #34d399;
}

.md-toast--error {
    background: #7f1d1d;
    border-left: 4px solid #f87171;
}

.md-toast--warning {
    background: #78350f;
    border-left: 4px solid #fbbf24;
}

.md-toast--info {
    background: #1e3a8a;
    border-left: 4px solid #60a5fa;
}

.md-toast__icon {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.md-toast__message {
    flex: 1;
}

.md-toast__close {
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.7);
    cursor: pointer;
    padding: 0.2rem;
    display: flex;
    align-items: center;
    border-radius: var(--radius-xs);
    transition: color var(--motion-duration-short);
}

.md-toast__close:hover {
    color: #ffffff;
}

/* Native Modal Dialog (<dialog>) */
.md-dialog {
    border: none;
    background: transparent;
    padding: 0;
    margin: auto;
    max-width: 480px;
    width: calc(100% - 2rem);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    outline: none;
}

.md-dialog:focus,
.md-dialog:focus-visible {
    outline: none;
}

.md-dialog::backdrop {
    background: rgba(15, 23, 42, 0.5);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.md-dialog__surface {
    background: var(--md-sys-color-surface-container-lowest);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    border: 1px solid var(--md-sys-color-outline-variant);
    animation: dialogScaleIn var(--motion-duration-medium) var(--motion-standard);
}

@keyframes dialogScaleIn {
    from {
        opacity: 0;
        transform: scale(0.96);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.md-dialog__header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.md-dialog__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    flex-shrink: 0;
}

.md-dialog__icon--primary {
    background: var(--md-sys-color-primary-container);
    color: var(--md-sys-color-primary);
}

.md-dialog__icon--danger {
    background: var(--md-sys-color-error-container);
    color: var(--md-sys-color-error);
}

.md-dialog__title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--md-sys-color-on-surface);
}

.md-dialog__body {
    font-size: 0.95rem;
    color: var(--md-sys-color-on-surface-variant);
    line-height: 1.5;
}

.md-dialog__actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    margin-top: 0.5rem;
}

/* Skeleton Screens Shimmer */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--md-sys-color-surface-container) 0%,
        var(--md-sys-color-surface-container-high) 50%,
        var(--md-sys-color-surface-container) 100%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite linear;
    border-radius: var(--radius-sm);
}

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.skeleton-text {
    height: 1rem;
    margin-bottom: 0.5rem;
    width: 80%;
}

.skeleton-title {
    height: 1.5rem;
    margin-bottom: 0.75rem;
    width: 50%;
}

.skeleton-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
}

/* Kanban System */
.kanban-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.25rem;
    align-items: flex-start;
}

.kanban-column {
    background: var(--md-sys-color-surface-container);
    border: 1px solid var(--md-sys-color-outline-variant);
    border-radius: var(--radius-md);
    padding: 1rem;
    min-height: 480px;
}

.kanban-column-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 0.6rem;
    border-bottom: 2px solid var(--md-sys-color-outline-variant);
}

.kanban-card {
    background: var(--md-sys-color-surface-container-lowest);
    border: 1px solid var(--md-sys-color-outline-variant);
    border-radius: var(--radius-sm);
    padding: 1rem;
    margin-bottom: 0.85rem;
    box-shadow: var(--shadow-sm);
    transition: transform var(--motion-duration-short), box-shadow var(--motion-duration-short);
    cursor: grab;
}

.kanban-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

/* Chat Operacional */
.chat-window {
    background: var(--md-sys-color-surface-container-lowest);
    border: 1px solid var(--md-sys-color-outline-variant);
    border-radius: var(--radius-md);
    height: 560px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.chat-messages-area {
    flex: 1;
    overflow-y: auto;
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    background: var(--md-sys-color-surface);
}

.chat-bubble {
    max-width: 75%;
    padding: 0.7rem 0.95rem;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    line-height: 1.4;
    word-break: break-word;
}

.chat-bubble-mine {
    align-self: flex-end;
    background: var(--md-sys-color-primary);
    color: var(--md-sys-color-on-primary);
    border-bottom-right-radius: 2px;
}

.chat-bubble-other {
    align-self: flex-start;
    background: var(--md-sys-color-surface-container-lowest);
    color: var(--md-sys-color-on-surface);
    border: 1px solid var(--md-sys-color-outline-variant);
    border-bottom-left-radius: 2px;
}

.chat-footer {
    padding: 1rem;
    background: var(--md-sys-color-surface-container-lowest);
    border-top: 1px solid var(--md-sys-color-outline-variant);
}

/* Spinner Loader */
.spinner {
    width: 38px;
    height: 38px;
    border: 3px solid var(--md-sys-color-outline-variant);
    border-top-color: var(--md-sys-color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 2rem auto;
}

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

/* Stats KPIs */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.25rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background: var(--md-sys-color-surface-container-lowest);
    border: 1px solid var(--md-sys-color-outline-variant);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-sm);
}

.stat-label {
    font-size: 0.8rem;
    color: var(--md-sys-color-on-surface-variant);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    margin-bottom: 0.35rem;
}

.stat-value {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--md-sys-color-on-surface);
    line-height: 1.2;
}

/* Responsive Utilities */
@media (max-width: 768px) {
    .header-container {
        padding: 0.65rem 1rem;
    }
    .brand-tag {
        display: none;
    }
    .app-main {
        padding: 0 1rem;
        margin-top: 1.25rem;
    }
    .auth-card {
        padding: 1.75rem 1.25rem;
    }
    .dashboard-card {
        padding: 1.25rem;
    }
    .page-header {
        padding: 1.25rem;
    }
    .md-toast-container {
        bottom: 1rem;
        right: 1rem;
        left: 1rem;
        width: auto;
    }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}