/* FreelanceDesk — Base styles (Apple-inspired) */

:root {
    --color-bg: #eef1f6;
    --color-bg-accent: #e4ebf6;
    --color-surface: #ffffff;
    --color-surface-muted: #f8fafc;
    --color-text: #111827;
    --color-text-muted: #64748b;
    --color-border: #dbe3ef;
    --color-primary: #2563eb;
    --color-primary-hover: #1d4ed8;
    --color-primary-soft: rgba(37, 99, 235, 0.1);
    --color-secondary: #f1f5f9;
    --color-success: #16a34a;
    --color-warning: #d97706;
    --color-danger: #dc2626;
    --color-info: #0284c7;

    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 22px;

    --shadow-card: 0 1px 2px rgba(15, 23, 42, 0.04), 0 12px 32px rgba(15, 23, 42, 0.06);
    --shadow-elevated: 0 18px 48px rgba(15, 23, 42, 0.12);
    --shadow-soft: 0 8px 24px rgba(37, 99, 235, 0.08);

    --font-system: Inter, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    --sidebar-width: 272px;
    --topbar-height: 72px;

    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
}

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

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

body {
    margin: 0;
    font-family: var(--font-system);
    color: var(--color-text);
    background:
        radial-gradient(circle at top left, rgba(37, 99, 235, 0.08), transparent 28%),
        linear-gradient(180deg, var(--color-bg-accent) 0%, var(--color-bg) 42%, #f8fafc 100%);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--color-primary);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

h1, h2, h3, h4, p {
    margin: 0;
}

h1 {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

h2 {
    font-size: 1.125rem;
    font-weight: 600;
}

img {
    max-width: 100%;
    height: auto;
}

/* Utilities */
.text-muted {
    color: var(--color-text-muted);
}

.text-sm {
    font-size: 0.875rem;
}

.mt-md {
    margin-top: var(--space-md);
}

.mt-lg {
    margin-top: var(--space-lg);
}

/* Cards */
.card {
    background: var(--color-surface);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-card);
    border: 1px solid rgba(148, 163, 184, 0.18);
    overflow: hidden;
}

.card__header {
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid var(--color-border);
    background: linear-gradient(180deg, rgba(255,255,255,0.98), rgba(248,250,252,0.92));
}

.card__header h2,
.card__header h3 {
    margin-bottom: 0.25rem;
}

.card__content {
    padding: var(--space-lg);
}

.card > .form {
    padding: var(--space-lg);
}

.card--metric {
    display: flex;
    gap: var(--space-md);
    padding: var(--space-lg);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

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

.card__icon {
    font-size: 1.75rem;
    line-height: 1;
}

.card__label {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-xs);
}

.card__value {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.card__hint {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    margin-top: var(--space-xs);
}

/* Grid */
.grid {
    display: grid;
    gap: var(--space-md);
}

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

@media (min-width: 640px) {
    .grid--metrics {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .grid--metrics {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 0.625rem 1.125rem;
    font-family: inherit;
    font-size: 0.9375rem;
    font-weight: 500;
    line-height: 1.2;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    text-decoration: none;
    transition: background 0.15s ease, transform 0.1s ease;
}

.btn:hover {
    text-decoration: none;
}

.btn--primary {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    color: #fff;
    box-shadow: var(--shadow-soft);
}

.btn--primary:hover {
    background: var(--color-primary-hover);
    color: #fff;
}

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

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

.btn--ghost {
    background: transparent;
    color: var(--color-text);
}

.btn--ghost:hover {
    background: rgba(0, 0, 0, 0.05);
}

.btn--block {
    width: 100%;
}

.btn--sm {
    padding: 0.4375rem 0.875rem;
    font-size: 0.875rem;
}

.btn--icon {
    padding: 0.5rem;
    min-width: 2.5rem;
    min-height: 2.5rem;
}

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

.form-group label {
    display: block;
    margin-bottom: var(--space-sm);
    font-size: 0.875rem;
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 0.8rem 0.95rem;
    font-family: inherit;
    font-size: 0.975rem;
    color: var(--color-text);
    background: var(--color-surface-muted);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.form-control:focus {
    outline: none;
    background: #fff;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

.form-control.is-invalid {
    border-color: var(--color-danger);
}

.form-error {
    color: var(--color-danger);
    font-size: 0.8125rem;
    margin-top: var(--space-xs);
}

/* Badges */
.badge {
    display: inline-block;
    padding: 0.125rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 999px;
    margin-right: var(--space-sm);
}

.badge--success { background: rgba(52, 199, 89, 0.15); color: #248a3d; }
.badge--warning { background: rgba(255, 149, 0, 0.15); color: #c93400; }
.badge--info { background: rgba(90, 200, 250, 0.15); color: #0071a8; }
.badge--muted { background: rgba(110, 110, 115, 0.15); color: #6e6e73; }
.badge--danger { background: rgba(255, 59, 48, 0.15); color: #d70015; }

.btn--danger {
    background: var(--color-danger);
    color: #fff;
}

.btn--danger:hover {
    background: #e0352b;
    color: #fff;
}

.alert--info {
    background: rgba(90, 200, 250, 0.1);
    color: #0071a8;
    border: 1px solid rgba(90, 200, 250, 0.2);
}

.is-hidden {
    display: none !important;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
    font-weight: 500;
}

/* Page header with actions */
.page-header--actions {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.page-header__buttons {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

/* Search bar */
.search-bar {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.search-bar .form-control {
    flex: 1;
    min-width: 200px;
}

/* Data table */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9375rem;
}

.data-table th,
.data-table td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.data-table th {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.data-table tbody tr:hover {
    background: rgba(0, 0, 0, 0.02);
}

.table-actions {
    white-space: nowrap;
    text-align: right;
}

/* Detail list */
.detail-list {
    margin: 0;
    display: grid;
    gap: var(--space-sm);
}

.detail-list dt {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    font-weight: 500;
}

.detail-list dd {
    margin: 0 0 var(--space-sm);
}

/* Grid variants */
.grid--2col {
    display: grid;
    gap: var(--space-md);
}

.grid--metrics-5 {
    grid-template-columns: 1fr;
}

@media (min-width: 640px) {
    .grid--metrics-5 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .grid--2col {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid--metrics-5 {
        grid-template-columns: repeat(5, 1fr);
    }

    .grid--metrics-6 {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1280px) {
    .grid--metrics-6 {
        grid-template-columns: repeat(6, 1fr);
    }
}

@media (max-width: 767px) {
    .data-table thead {
        display: none;
    }

    .data-table tr {
        display: block;
        margin-bottom: var(--space-md);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-sm);
        padding: var(--space-sm);
    }

    .data-table td {
        display: flex;
        justify-content: space-between;
        align-items: center;
        border-bottom: 1px solid var(--color-border);
        padding: 0.5rem 0.75rem;
    }

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

    .data-table td::before {
        content: attr(data-label);
        font-weight: 600;
        font-size: 0.8125rem;
        color: var(--color-text-muted);
        margin-right: var(--space-md);
    }

    .table-actions {
        justify-content: flex-end;
    }
}


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

.list-demo li {
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--color-border);
}

.list-demo li:last-child {
    border-bottom: none;
}

/* Page header */
.page-header {
    margin-bottom: var(--space-lg);
}

.page-header h1 {
    margin-bottom: var(--space-xs);
}

/* Auth layout */
.layout-auth,
.layout-install {
    min-height: 100vh;
}

.auth-wrapper,
.install-wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
}

.auth-card,
.install-card {
    width: 100%;
    max-width: 420px;
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-elevated);
    padding: var(--space-xl);
    border: 1px solid rgba(0, 0, 0, 0.04);
}

.auth-header,
.install-header {
    text-align: center;
    margin-bottom: var(--space-lg);
}

.auth-logo {
    width: 56px;
    height: 56px;
    margin: 0 auto var(--space-md);
    background: linear-gradient(135deg, #0071e3, #5ac8fa);
    color: #fff;
    font-weight: 700;
    font-size: 1.25rem;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.auth-footer {
    margin-top: var(--space-lg);
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

.auth-links {
    margin-top: var(--space-lg);
    text-align: center;
}

.auth-links__row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    margin: var(--space-sm) 0;
    font-size: 0.875rem;
}

/* Install */
.install-steps {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.install-step {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    padding: var(--space-md);
    border-radius: var(--radius-sm);
    background: var(--color-bg);
    opacity: 0.6;
}

.install-step.is-active {
    opacity: 1;
    background: rgba(0, 113, 227, 0.08);
    border: 1px solid rgba(0, 113, 227, 0.2);
}

.install-step__number {
    width: 28px;
    height: 28px;
    flex-shrink: 0;
    background: var(--color-primary);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    font-weight: 600;
}

/* Error pages */
.error-page {
    text-align: center;
    padding: var(--space-xl) 0;
}

.error-code {
    font-size: 4rem;
    font-weight: 700;
    color: var(--color-text-muted);
    letter-spacing: -0.04em;
    line-height: 1;
    margin-bottom: var(--space-md);
}

.error-page h1 {
    margin-bottom: var(--space-sm);
}

.error-page .btn {
    margin-top: var(--space-lg);
}

/* Toast */
.toast-container {
    position: fixed;
    bottom: var(--space-lg);
    right: var(--space-lg);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    pointer-events: none;
}

.toast {
    background: var(--color-text);
    color: #fff;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-elevated);
    font-size: 0.875rem;
    animation: toast-in 0.25s ease;
    pointer-events: auto;
}

.toast--success { background: #248a3d; }
.toast--error { background: var(--color-danger); }

@keyframes toast-in {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.install-card--wide {
    max-width: 640px;
}

.install-step.is-done {
    opacity: 1;
    background: rgba(52, 199, 89, 0.08);
    border: 1px solid rgba(52, 199, 89, 0.2);
}

.install-step.is-done .install-step__number {
    background: var(--color-success);
}

/* Requirements */
.requirement-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.requirement-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--color-border);
}

.requirement-item:last-child {
    border-bottom: none;
}

.requirement-item.is-fail {
    color: var(--color-danger);
}

.requirement-item.is-warn {
    color: var(--color-warning);
}

/* Alerts */
.alert {
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.9375rem;
    margin-bottom: var(--space-md);
}

.alert--error {
    background: rgba(255, 59, 48, 0.1);
    color: #c41e16;
    border: 1px solid rgba(255, 59, 48, 0.2);
}

.alert--success {
    background: rgba(52, 199, 89, 0.1);
    color: #248a3d;
    border: 1px solid rgba(52, 199, 89, 0.2);
}

/* Form layout */
.form-row {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.form-group--grow {
    flex: 1;
    min-width: 200px;
}

.form-group--sm {
    width: 120px;
    flex-shrink: 0;
}

.form-hint {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    margin-top: var(--space-xs);
}

.form-divider {
    border: none;
    border-top: 1px solid var(--color-border);
    margin: var(--space-lg) 0;
}

.form-actions {
    display: flex;
    gap: var(--space-md);
    justify-content: flex-end;
    flex-wrap: wrap;
    margin-top: var(--space-lg);
}

.form-actions .btn--block {
    width: auto;
}

/* Content area */
.content {
    padding: var(--space-lg);
    max-width: 1280px;
}

@media (min-width: 768px) {
    .content {
        padding: var(--space-xl);
    }
}

@media (max-width: 480px) {
    .form-actions {
        flex-direction: column;
    }

    .form-actions .btn {
        width: 100%;
    }
}

/* Invoice module */
.search-bar--filters {
    flex-wrap: wrap;
}

.search-bar--filters .form-control {
    min-width: 140px;
    flex: 1 1 140px;
}

.grid--invoice-detail {
    display: grid;
    gap: var(--space-lg);
}

@media (min-width: 960px) {
    .grid--invoice-detail {
        grid-template-columns: 1fr 320px;
        align-items: start;
    }
}

.invoice-items__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.invoice-items__header h3 {
    margin: 0;
    font-size: 1.125rem;
}

.invoice-items__table .col-narrow {
    width: 100px;
}

.invoice-totals {
    display: flex;
    justify-content: flex-end;
    margin-top: var(--space-lg);
}

.invoice-totals__list {
    min-width: 240px;
}

.invoice-totals__list > div {
    display: flex;
    justify-content: space-between;
    gap: var(--space-lg);
    padding: var(--space-xs) 0;
}

.invoice-totals__grand {
    border-top: 1px solid var(--color-border);
    margin-top: var(--space-sm);
    padding-top: var(--space-sm) !important;
    font-weight: 600;
    font-size: 1.0625rem;
}

.detail-list--summary dd {
    font-weight: 600;
}

.text-success { color: #248a3d; }
.text-danger { color: #d70015; }
.text-right { text-align: right; }

.btn--block {
    width: 100%;
}

.empty-state {
    text-align: center;
    padding: var(--space-xl) var(--space-md);
}

.card--summary .card__content {
    padding-top: 0;
}

/* Ticket thread */
.grid--ticket-detail {
    display: grid;
    gap: var(--space-lg);
}

@media (min-width: 960px) {
    .grid--ticket-detail {
        grid-template-columns: 1fr 300px;
        align-items: start;
    }
}

.ticket-thread {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.ticket-message {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-md);
}

.ticket-message--client {
    border-left: 3px solid var(--color-primary);
}

.ticket-message--admin {
    border-left: 3px solid #248a3d;
}

.ticket-message--internal {
    border-left: 3px solid #6e6e73;
    background: rgba(110, 110, 115, 0.06);
}

.ticket-message__header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.ticket-message__header time {
    margin-left: auto;
}

.ticket-message__body {
    line-height: 1.55;
    white-space: normal;
    word-break: break-word;
}

.mb-md {
    margin-bottom: var(--space-md);
}

.tabs-nav {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.tabs-nav__link {
    padding: 0.5rem 0.875rem;
    border-radius: var(--radius-sm);
    text-decoration: none;
    color: var(--color-text-muted);
    font-weight: 500;
}

.tabs-nav__link.is-active {
    background: var(--color-primary-soft);
    color: var(--color-primary);
}

.grid--metrics-4 {
    grid-template-columns: 1fr;
}

@media (min-width: 640px) {
    .grid--metrics-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .grid--metrics-4 {
        grid-template-columns: repeat(4, 1fr);
    }
}

.grid--metrics-6 {
    grid-template-columns: 1fr;
}

@media (min-width: 640px) {
    .grid--metrics-6 {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Settings */
.settings-grid {
    display: grid;
    gap: var(--space-lg);
    grid-template-columns: 1fr;
}

.settings-panel--wide {
    grid-column: 1 / -1;
}

@media (min-width: 1100px) {
    .settings-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

.branding-preview-grid {
    display: grid;
    gap: var(--space-lg);
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.branding-preview {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.branding-preview__label {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.branding-preview__image {
    width: 100%;
    max-height: 88px;
    object-fit: contain;
    object-position: left center;
    background: var(--color-surface-muted);
    border: 1px dashed var(--color-border);
    border-radius: var(--radius-sm);
    padding: var(--space-md);
}

.branding-preview__favicon {
    width: 48px;
    height: 48px;
    object-fit: contain;
    background: var(--color-surface-muted);
    border: 1px dashed var(--color-border);
    border-radius: 12px;
    padding: 0.5rem;
}

.branding-preview__placeholder {
    width: 72px;
    height: 72px;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: #fff;
    background: linear-gradient(135deg, #2563eb, #7c3aed);
}

.branding-preview__placeholder--sm {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    font-size: 0.75rem;
}

.version-badges {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.version-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.45rem 0.8rem;
    border-radius: 999px;
    background: var(--color-primary-soft);
    color: var(--color-primary);
    font-size: 0.875rem;
    font-weight: 600;
}

.version-badge--muted {
    background: var(--color-secondary);
    color: var(--color-text-muted);
}

.form-actions--start {
    justify-content: flex-start;
}

.update-form {
    max-width: 520px;
}

.module-list {
    display: grid;
    gap: var(--space-md);
}

.module-item {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    background: var(--color-surface);
}

.module-item--core {
    background: var(--color-secondary);
}

.module-item__toggle {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-weight: 600;
    cursor: pointer;
}

.module-item__desc {
    margin: 0.35rem 0 0.5rem 1.6rem;
}

.module-item__meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
    margin-left: 1.6rem;
}

.page-header--client {
    margin-bottom: var(--space-lg);
}

.profile-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--space-md);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    background: var(--color-surface-muted);
    border: 1px solid var(--color-border);
}

.profile-summary__item {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.topbar__user {
    text-decoration: none;
    transition: color 0.2s ease;
}

.topbar__user:hover {
    color: var(--color-primary);
    text-decoration: none;
}