/* ============================================
   Design Tokens
   The guide's tokens come from its gem, pal_e_design, whose tokens.css the layout links
   before this file. Here is only this app's own.
   ============================================ */
:root {
    --touch-min: 2.75rem; /* 44px — Apple HIG minimum touch target */
}

/* ============================================
   Reset
   ============================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    /* Safe-area insets for iOS notch / Dynamic Island */
    padding-top: env(safe-area-inset-top);
    padding-bottom: env(safe-area-inset-bottom);
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
}

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

/* ============================================
   Layout
   ============================================ */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ============================================
   Component: NavBar
   Partial: layouts/application.html.erb
   ============================================ */
.navbar {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-sm) 0;
    margin-bottom: var(--spacing-lg);
}
.navbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}
.navbar-brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text);
    text-decoration: none;
    font-family: var(--font-mono);
    min-height: var(--touch-min);
    display: inline-flex;
    align-items: center;
}
.navbar-brand:hover {
    color: var(--color-accent);
    text-decoration: none;
}
.navbar-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}
.nav-tab {
    font-size: 0.875rem;
    color: var(--color-muted);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius);
    transition: color 150ms ease, background 150ms ease;
    min-height: var(--touch-min);
    display: inline-flex;
    align-items: center;
}
.nav-tab:hover {
    color: var(--color-accent);
    text-decoration: none;
}
.nav-tab-active {
    color: var(--color-accent);
    font-weight: 700;
}

/* ============================================
   Component: Flash Messages
   Partial: layouts/_flash.html.erb
   ============================================ */
.flash {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius);
    margin-bottom: var(--spacing-lg);
    border: 1px solid;
}
.flash-notice {
    background: var(--color-accent-light);
    border-color: var(--color-accent);
    color: var(--color-text);
}
.flash-alert {
    background: #ffeef0;
    border-color: var(--color-danger);
    color: var(--color-danger);
}

/* ============================================
   Component: LinkIndex
   Partial: links/index.html.erb
   ============================================ */
.links-header {
    margin-bottom: var(--spacing-md);
}
.links-header h1 {
    font-size: 1.5rem;
}

/* ============================================
   Component: TenantSection
   Partial: links/_tenant.html.erb (the section list: links/index.html.erb)
   Stimulus: collapse_controller.js (header toggles .is-collapsed, persisted in localStorage)
             sortable_controller.js (the section list: a named section drags by the ☰ handle
               beside its toggle; and one per section grid — links reorder within a section)
   ============================================ */
.tenant {
    margin-bottom: var(--spacing-lg);
    border-radius: var(--radius);
    transition: opacity 150ms ease;
}
.tenant.is-dragging {
    opacity: 0.4;
}
.tenant.is-drag-over {
    outline: 2px solid var(--color-accent);
    outline-offset: var(--spacing-xs);
}
.tenant-header {
    display: flex;
    align-items: center;
    font-size: 1rem;
    margin-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border);
}
.tenant.is-selected .tenant-header {
    background: var(--color-accent-light);
    border-bottom-color: var(--color-accent);
}
.tenant-toggle {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex: 1;
    min-width: 0;
    min-height: var(--touch-min);
    padding: var(--spacing-xs) 0;
    background: none;
    border: none;
    font: inherit;
    font-weight: 700;
    color: var(--color-text);
    text-align: left;
    cursor: pointer;
}
.tenant-toggle:hover .tenant-name {
    color: var(--color-accent);
}
.tenant-chevron {
    display: inline-block;
    color: var(--color-muted);
    transition: transform 150ms ease;
}
.tenant.is-collapsed .tenant-chevron {
    transform: rotate(-90deg);
}
.tenant-count {
    font-size: 0.8rem;
    font-weight: 400;
    color: var(--color-muted);
}
/* Beside the toggle, never inside it: dragging or clicking it never collapses. */
.tenant-handle {
    cursor: grab;
    color: var(--color-muted);
    font-size: 1.1rem;
    padding: var(--spacing-sm);
    min-width: var(--touch-min);
    min-height: var(--touch-min);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    user-select: none;
    touch-action: none;
    flex-shrink: 0;
}
.tenant-handle:active {
    cursor: grabbing;
}
.tenant.is-selected .tenant-handle {
    color: var(--color-accent);
}

/* Phone: one column. Desktop fills the row with as many 240px+ cards as fit. */
.link-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
}
.tenant.is-collapsed .link-grid {
    display: none;
}

/* ============================================
   Component: LinkCard
   Partial: links/_link.html.erb
   Stimulus: card_controller.js (body navigates; chevron toggles .is-expanded)
             sortable_controller.js (drag-and-drop reorder; the handle is in the details)
   Compact by default: star, title, domain, tags. The details block (description,
   meta, actions, drag handle) is hidden until the card is expanded.
   ============================================ */
.link-card {
    --card-title-line: 1.3rem;

    position: relative;
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    transition: border-color 150ms ease, opacity 150ms ease;
}
.link-card:hover {
    border-color: var(--color-accent);
}
.link-card.is-dragging {
    opacity: 0.4;
}
.link-card.is-drag-over {
    border-left: 3px solid var(--color-accent);
}
.link-card.is-selected {
    border-color: var(--color-accent);
    background: var(--color-accent-light);
}
.link-card.is-selected .link-card-handle {
    color: var(--color-accent);
}

.link-card > form {
    flex-shrink: 0;
    line-height: 1;
}

.link-card-favorite {
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    min-width: var(--touch-min);
    min-height: var(--touch-min);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}
.link-card-favorite .star {
    font-size: 1.2rem;
    color: var(--color-muted);
    transition: color 150ms ease;
}
.link-card-favorite:hover .star {
    color: #e3b341;
}
.link-card-favorite.is-favorite .star {
    color: #e3b341;
}

.link-card-body {
    flex: 1;
    min-width: 0;
    /* Centre the title's first line on the 44px star and chevron beside it */
    padding: calc((var(--touch-min) - var(--card-title-line)) / 2) 0 var(--spacing-sm);
    cursor: pointer;
}

.link-card-title {
    font-size: 1rem;
    font-weight: 700;
    line-height: var(--card-title-line);
    overflow-wrap: anywhere;
}
.link-card-domain {
    display: block;
    font-size: 0.75rem;
    line-height: 1.4;
    color: var(--color-muted);
    font-family: var(--font-mono);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.link-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-xs);
}

.tag {
    display: inline-block;
    background: var(--color-accent-light);
    color: var(--color-accent);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 2px var(--spacing-sm);
    border-radius: var(--radius);
}

.link-card-expand {
    flex-shrink: 0;
    min-width: var(--touch-min);
    min-height: var(--touch-min);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    color: var(--color-muted);
    font-size: 1rem;
    cursor: pointer;
}
.link-card-expand:hover {
    color: var(--color-accent);
}
.link-card-chevron {
    display: inline-block;
    transition: transform 150ms ease;
}
.link-card.is-expanded .link-card-chevron {
    transform: rotate(180deg);
}

/* Details: hidden until expanded. .is-expanded (chevron) shows them in flow. */
.link-card-details {
    display: none;
    margin-top: var(--spacing-xs);
}
.link-card.is-expanded .link-card-details {
    display: block;
}
.link-card-description {
    color: var(--color-muted);
    font-size: 0.85rem;
    line-height: 1.4;
    margin-bottom: var(--spacing-xs);
}
.link-card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    font-size: 0.75rem;
    line-height: 1.4;
    color: var(--color-muted);
}
.link-card-repo {
    font-family: var(--font-mono);
}

.link-card-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xs);
    padding-top: var(--spacing-xs);
    border-top: 1px solid var(--color-border);
}
.link-card-handle {
    cursor: grab;
    color: var(--color-muted);
    font-size: 1.1rem;
    padding: var(--spacing-sm);
    min-width: var(--touch-min);
    min-height: var(--touch-min);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    user-select: none;
    touch-action: none;
    flex-shrink: 0;
}
.link-card-handle:active {
    cursor: grabbing;
}
.link-action {
    font-size: 0.8rem;
    color: var(--color-muted);
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
    padding: var(--spacing-xs) var(--spacing-sm);
    min-height: var(--touch-min);
    display: inline-flex;
    align-items: center;
}
.link-action:hover {
    color: var(--color-accent);
    text-decoration: none;
}
.link-action-danger:hover {
    color: var(--color-danger);
}

/* Hover-capable devices: hovering the card (or focusing inside it) reveals the
   details as an overlay hanging below the card, so the grid never reflows while
   the pointer scans across it. A pinned (.is-expanded) card stays in flow. */
@media (hover: hover) {
    .link-card:not(.is-expanded):hover,
    .link-card:not(.is-expanded):focus-within {
        border-color: var(--color-accent);
        border-bottom-left-radius: 0;
        border-bottom-right-radius: 0;
    }
    .link-card:not(.is-expanded):hover .link-card-details,
    .link-card:not(.is-expanded):focus-within .link-card-details {
        display: block;
        position: absolute;
        z-index: 1;
        top: 100%;
        left: -1px;
        right: -1px;
        margin-top: 0;
        padding: 0 var(--spacing-md) var(--spacing-sm);
        background: var(--color-surface);
        border: 1px solid var(--color-accent);
        border-top: none;
        border-radius: 0 0 var(--radius) var(--radius);
    }
}

/* ============================================
   Component: LinkDetail
   Partial: links/show.html.erb
   ============================================ */
.link-detail {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--spacing-xl);
}
.link-detail h1 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}
.link-detail-url {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--color-muted);
    margin-bottom: var(--spacing-lg);
    word-break: break-all;
}
.link-detail-repo {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    margin-bottom: var(--spacing-lg);
}
.link-detail-description {
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}
.link-detail-actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

/* ============================================
   Component: Empty State
   ============================================ */
.empty-state {
    text-align: center;
    padding: var(--spacing-xl) 0;
    color: var(--color-muted);
}
.empty-state p {
    margin-bottom: var(--spacing-md);
}

/* ============================================
   Forms
   Partial: links/_form.html.erb
   ============================================ */
.form .field {
    margin-bottom: var(--spacing-lg);
}
.form .field label {
    display: block;
    font-weight: 700;
    font-size: 0.9rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
}
.form .field input,
.form .field textarea,
.form .field select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 1rem;
    background: var(--color-surface);
    color: var(--color-text);
}
.form .field input:focus,
.form .field textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--color-accent-light);
}
.form .actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

.form-errors {
    background: #ffeef0;
    border: 1px solid var(--color-danger);
    border-radius: var(--radius);
    padding: var(--spacing-md) var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    color: var(--color-danger);
}
.form-errors h2 {
    font-size: 0.95rem;
    margin-bottom: var(--spacing-sm);
}
.form-errors ul {
    padding-left: var(--spacing-lg);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    min-height: var(--touch-min);
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 700;
    border: 1px solid transparent;
    border-radius: var(--radius);
    cursor: pointer;
    transition: background 150ms ease, border-color 150ms ease;
    text-decoration: none;
}
.btn:hover {
    text-decoration: none;
}
.btn-primary {
    background: var(--color-accent);
    color: white;
}
.btn-primary:hover {
    background: var(--color-link-hover);
    color: white;
}
.btn-secondary {
    background: var(--color-surface);
    color: var(--color-text);
    border-color: var(--color-border);
}
.btn-secondary:hover {
    border-color: var(--color-accent);
    color: var(--color-text);
}
.btn-danger {
    background: var(--color-surface);
    color: var(--color-danger);
    border-color: var(--color-danger);
}
.btn-danger:hover {
    background: var(--color-danger);
    color: white;
}
.btn-sm {
    font-size: 0.8rem;
    padding: var(--spacing-xs) var(--spacing-md);
    min-height: var(--touch-min);
}

/* ============================================
   Component: Click-tracked link buttons
   Reset button_to elements to look like plain links.
   Used in: links/_link.html.erb, links/show.html.erb
   ============================================ */
.link-card-track-form,
.link-detail-track-form {
    display: inline;
}

.link-card-track,
.link-detail-track {
    background: none;
    border: none;
    padding: 0;
    margin: 0;
    font: inherit;
    color: inherit;
    cursor: pointer;
    text-align: inherit;
    text-decoration: none;
}

.link-card-track:hover {
    color: var(--color-accent);
    text-decoration: none;
}

.link-detail-track:hover {
    color: var(--color-accent);
    text-decoration: none;
}

/* ============================================
   Component: Privacy Policy
   Partial: pages/privacy.html.erb
   ============================================ */
.privacy-page {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--spacing-lg) var(--spacing-md);
}
.privacy-page h1 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}
.privacy-updated {
    font-size: 0.85rem;
    color: var(--color-muted);
    margin-bottom: var(--spacing-lg);
}
.privacy-section {
    margin-bottom: var(--spacing-lg);
}
.privacy-section h2 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xs);
}
.privacy-section p {
    color: var(--color-muted);
    font-size: 0.95rem;
}
.privacy-back {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

/* ============================================
   Responsive — mobile-first
   ============================================ */

/* Compact spacing on small screens */
@media (max-width: 599px) {
    .navbar {
        margin-bottom: var(--spacing-md);
    }
    .link-detail {
        padding: var(--spacing-md);
    }
    .link-detail-actions {
        flex-wrap: wrap;
    }
    .form .actions {
        flex-wrap: wrap;
    }
}

@media (min-width: 600px) {
    .link-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }
    .privacy-page {
        padding: var(--spacing-xl);
    }
    .navbar {
        margin-bottom: var(--spacing-xl);
    }
    .navbar-links {
        gap: var(--spacing-md);
    }
}