/**
 * @file cards.css
 * @brief Shared card styles for PostCard, CommentCard, UserCard (§5.5 Enhancement)
 *
 * Co-locates card component styles that were previously scattered across
 * styles.css and inline JS. All values use CSS custom properties from
 * design-system.css.
 */

/* Base card */
.card {
    background: var(--bg-secondary, #1a1a2e);
    border: 1px solid var(--border-color, #2a2a3e);
    border-radius: var(--radius-lg, 12px);
    padding: var(--spacing-4, 16px);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.card:hover {
    border-color: var(--border-hover, #3a3a4e);
}

/* Card header (avatar + name + timestamp) */
.card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-3, 12px);
    margin-bottom: var(--spacing-3, 12px);
}

.card-header-info {
    flex: 1;
    min-width: 0;
}

.card-header-name {
    font-weight: var(--font-semibold, 600);
    color: var(--text-primary, #e0e0f0);
    display: flex;
    align-items: center;
    gap: var(--spacing-1, 4px);
}

.card-header-username {
    font-size: var(--text-sm, 14px);
    color: var(--text-tertiary, #707080);
}

.card-header-timestamp {
    font-size: var(--text-xs, 12px);
    color: var(--text-tertiary, #707080);
}

/* Card content area */
.card-content {
    font-size: var(--text-base, 16px);
    line-height: 1.6;
    color: var(--text-primary, #e0e0f0);
    word-break: break-word;
}

/* Card action bar (reactions, comments, share, bookmark) */
.card-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-2, 8px);
    margin-top: var(--spacing-3, 12px);
    padding-top: var(--spacing-3, 12px);
    border-top: 1px solid var(--border-color, #2a2a3e);
}

.card-action-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-1, 4px);
    padding: var(--spacing-1, 4px) var(--spacing-2, 8px);
    border: none;
    border-radius: var(--radius-md, 8px);
    background: transparent;
    color: var(--text-secondary, #a0a0b0);
    font-size: var(--text-sm, 14px);
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
}

.card-action-btn:hover {
    background: var(--bg-hover, #252540);
    color: var(--text-primary, #e0e0f0);
}

.card-action-btn.active {
    color: var(--color-primary, #6366f1);
}

.card-action-btn.heart.active {
    color: var(--color-danger, #ef4444);
}

/* Post card specific */
.post-card {
    margin-bottom: var(--spacing-3, 12px);
}

.post-card-media {
    margin-top: var(--spacing-3, 12px);
    border-radius: var(--radius-md, 8px);
    overflow: hidden;
}

.post-card-media img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Comment card specific */
.comment-card {
    padding: var(--spacing-3, 12px);
    margin-left: var(--spacing-4, 16px);
    border-left: 2px solid var(--border-color, #2a2a3e);
}

.comment-card.top-level {
    margin-left: 0;
    border-left: none;
}

/* User card specific */
.user-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-3, 12px);
    padding: var(--spacing-3, 12px);
}

.user-card-bio {
    font-size: var(--text-sm, 14px);
    color: var(--text-secondary, #a0a0b0);
    margin-top: var(--spacing-1, 4px);
}

/* User card layout for full variant */
.user-card.full {
    flex-direction: column;
    align-items: stretch;
    padding: 0;
}
.user-card.full .user-card-content {
    padding: var(--spacing-3, 12px);
}
.user-card.full .user-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
}
.user-card.full .user-card-header-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.user-card.full .user-card-banner {
    height: 100px;
    background: var(--bg-tertiary, #252540);
    border-radius: var(--radius-md, 8px) var(--radius-md, 8px) 0 0;
    overflow: hidden;
}
.user-card.full .user-card-banner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.user-card.full .user-card-banner.placeholder {
    background: linear-gradient(135deg, var(--accent, #8b5cf6) 0%, var(--color-primary, #6366f1) 100%);
}

/* Compact user card adjustments */
.user-card.compact {
    flex-wrap: wrap;
}

/* Shared user-card stats row */
.user-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    padding: 0.5rem 0;
    border-top: 1px solid var(--border-color, #2a2a3e);
    font-size: 0.8125rem;
}
.user-stats.compact-stats {
    width: 100%;
    padding-top: 0.5rem;
    margin-top: 0.25rem;
}
.user-stat {
    color: var(--text-secondary, #a0a0b0);
    text-decoration: none;
    transition: color 0.2s;
}
.user-stat:hover {
    color: var(--text-primary, #e0e0f0);
}
.user-stat strong {
    color: var(--text-primary, #e0e0f0);
    font-weight: 700;
    margin-right: 0.2rem;
}

/* User card meta (location, website, joined) */
.user-card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    padding: 0.25rem 0;
    font-size: 0.8125rem;
    color: var(--text-secondary, #a0a0b0);
}
.user-meta-item {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}
.user-meta-item a {
    color: var(--accent, #8b5cf6);
    text-decoration: none;
}
.user-meta-item a:hover {
    text-decoration: underline;
}

/* Notification card specific */
.notification-card {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-3, 12px);
    padding: var(--spacing-3, 12px);
    border-bottom: 1px solid var(--border-color, #2a2a3e);
}

.notification-card.unread {
    background: var(--bg-highlight, rgba(99, 102, 241, 0.05));
}

.notification-card-icon {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--bg-tertiary, #252540);
}

/* Quoted post card */
.quoted-post-card {
    margin-top: var(--spacing-3, 12px);
    padding: var(--spacing-3, 12px);
    background: var(--bg-tertiary, #252540);
    border: 1px solid var(--border-color, #2a2a3e);
    border-radius: var(--radius-md, 8px);
}

/* Message card specific */
.message-card {
    display: flex;
    gap: var(--spacing-2, 8px);
    padding: var(--spacing-2, 8px) 0;
}

.message-card.outgoing {
    flex-direction: row-reverse;
}

.message-card-bubble {
    max-width: 70%;
    padding: var(--spacing-2, 8px) var(--spacing-3, 12px);
    border-radius: var(--radius-lg, 12px);
    font-size: var(--text-sm, 14px);
}

.message-card.incoming .message-card-bubble {
    background: var(--bg-tertiary, #252540);
    color: var(--text-primary, #e0e0f0);
}

.message-card.outgoing .message-card-bubble {
    background: var(--color-primary, #6366f1);
    color: var(--color-on-primary, #ffffff);
}

/* Stackable message cards — tighter gap for same-sender grouping */
.message-card.stacked {
    margin-top: -4px;
    padding-top: 2px;
}

.message-card.stacked .message-card-avatar {
    visibility: hidden;
}

.message-card.stacked .message-card-sender {
    display: none;
}

/* Content restricted placeholder for shared posts */
.cr-content-restricted {
    opacity: 0.7;
}

.cr-restricted-placeholder {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 16px;
    color: var(--text-muted, #6b7280);
    font-size: 0.875rem;
    font-style: italic;
}

.cr-restricted-placeholder i {
    font-size: 1rem;
    opacity: 0.6;
}

/* Voice clip player */
.voice-clip-player {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: var(--bg-tertiary, #252540);
    border-radius: var(--radius-lg, 12px);
    min-width: 180px;
}

.voice-clip-player .voice-play-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: none;
    background: var(--color-primary, #6366f1);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    flex-shrink: 0;
}

.voice-clip-player .voice-waveform {
    flex: 1;
    height: 24px;
    display: flex;
    align-items: center;
    gap: 1px;
}

.voice-clip-player .voice-waveform-bar {
    width: 3px;
    background: var(--color-primary, #6366f1);
    border-radius: 2px;
    opacity: 0.4;
    transition: opacity 0.15s;
}

.voice-clip-player .voice-waveform-bar.played {
    opacity: 1;
}

.voice-clip-player .voice-duration {
    font-size: 11px;
    color: var(--text-muted, #6b7280);
    flex-shrink: 0;
}

/* Call message card */
.call-message {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    background: var(--bg-tertiary, #252540);
    border-radius: var(--radius-lg, 12px);
    font-size: 0.875rem;
    color: var(--text-primary, #e0e0f0);
}

.call-message .call-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.call-message .call-icon.missed {
    background: rgba(239, 68, 68, 0.15);
    color: var(--color-danger, #ef4444);
}

.call-message .call-icon.completed {
    background: rgba(16, 185, 129, 0.15);
    color: var(--color-success, #10b981);
}

.call-message .call-info {
    flex: 1;
}

.call-message .call-duration {
    font-size: 11px;
    color: var(--text-muted, #6b7280);
}