/* =========================================================
   CSS custom properties — Deep Ocean (default / free theme)
   All colour values live here. Component rules reference
   only variables; no hex literals appear outside this block.
   ========================================================= */
:root {
    --color-bg:      #070d1a;
    --color-surface: #0d1829;
    --color-card:    #132038;
    --color-accent:  #34d399;
    --color-text:    #dbeafe;
    --color-muted:   #4b6080;
    --color-overlay: rgba(0, 0, 0, 0.6);
    --color-warn:    #f59e0b;
    --color-error:   #f87171;

    --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
            Helvetica, Arial, sans-serif;
    --radius:       8px;
    --radius-full:  9999px;
    --rail-l:       240px;
    --rail-r:       220px;
    --centre-max:   600px;
}

/* ---- Paid theme overrides ---- */

body.slate {
    --color-bg:      #0f1117;
    --color-surface: #181c27;
    --color-card:    #222840;
    --color-accent:  #7c9ef8;
    --color-text:    #c8d4f0;
    --color-muted:   #556080;
}

body.amber {
    --color-bg:      #111111;
    --color-surface: #1a1a1a;
    --color-card:    #242424;
    --color-accent:  #f59e0b;
    --color-text:    #f0e8d0;
    --color-muted:   #88806a;
}

body.graphite {
    --color-bg:      #131416;
    --color-surface: #1c1f23;
    --color-card:    #252830;
    --color-accent:  #38bdf8;
    --color-text:    #c0d4e0;
    --color-muted:   #505c68;
}

/* =========================================================
   Reset / base
   ========================================================= */

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font);
    font-size: 15px;
    line-height: 1.5;
    min-height: 100vh;
}

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

a:hover {
    text-decoration: underline;
}

button {
    font-family: inherit;
    cursor: pointer;
}

/* =========================================================
   Three-column app shell
   ========================================================= */

.app {
    display: grid;
    grid-template-columns: var(--rail-l) minmax(0, 1fr) var(--rail-r);
    min-height: 100vh;
    max-width: 1280px;
    margin: 0 auto;
}

/* ---- Left rail ---- */

.left-rail {
    background: var(--color-surface);
    border-right: 1px solid var(--color-card);
    padding: 24px 16px;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.left-rail-inner {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.profile {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 4px 20px;
    border-bottom: 1px solid var(--color-card);
    margin-bottom: 16px;
}

.avatar-img,
.avatar-placeholder {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-full);
    flex-shrink: 0;
    object-fit: cover;
    background: var(--color-card);
}

.handle {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.nav {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.nav-link {
    display: block;
    padding: 10px 12px;
    border-radius: var(--radius);
    color: var(--color-text);
    font-size: 0.95rem;
    font-weight: 500;
    text-decoration: none;
    transition: background 0.12s;
}

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

.btn-logout {
    background: none;
    border: none;
    width: 100%;
    text-align: left;
    color: var(--color-muted);
    font-size: 0.95rem;
    font-weight: 500;
}

.btn-logout:hover {
    color: var(--color-text);
    background: var(--color-card);
}

.nav-divider {
    border: none;
    border-top: 1px solid var(--color-card);
    margin: 8px 0;
}

.btn-new-post {
    display: block;
    width: 100%;
    padding: 12px;
    margin-top: 16px;
    margin-bottom: 4px;
    background: var(--color-accent);
    color: #000;
    border: none;
    border-radius: var(--radius-full);
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.01em;
    transition: opacity 0.12s;
}

.btn-new-post:hover {
    opacity: 0.88;
}

/* ---- Centre ---- */

.centre {
    border-left: 1px solid var(--color-card);
    border-right: 1px solid var(--color-card);
    min-height: 100vh;
    min-width: 0;
}

.centre-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
    color: var(--color-muted);
}

/* ---- Right rail ---- */

.right-rail {
    background: var(--color-surface);
    border-left: 1px solid var(--color-card);
    padding: 24px 16px;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
}

.rail-heading {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-muted);
    margin-bottom: 12px;
}

.recent-tags {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.tag-link {
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    font-family: inherit;
    color: var(--color-accent);
    font-size: 0.9rem;
    font-weight: 500;
    text-align: left;
}

.muted-text {
    color: var(--color-muted);
    font-size: 0.88rem;
}

/* =========================================================
   Feed controls bar
   ========================================================= */

.feed-controls {
    padding: 12px 16px;
    border-bottom: 1px solid var(--color-card);
    position: sticky;
    top: 0;
    background: var(--color-bg);
    z-index: 10;
}

.feed-controls-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.feed-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-muted);
    display: flex;
    align-items: center;
    gap: 4px;
    flex-wrap: wrap;
}

.feed-active-tag {
    color: var(--color-accent);
}

.btn-back {
    background: none;
    border: 1px solid var(--color-muted);
    border-radius: var(--radius-full);
    color: var(--color-muted);
    font-family: var(--font);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 4px 12px;
    cursor: pointer;
    white-space: nowrap;
    transition: border-color 0.12s, color 0.12s;
}

.btn-back:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

/* =========================================================
   Post list + post cards
   ========================================================= */

.post-list {
    list-style: none;
}

.post-card {
    padding: 14px 16px;
    border-bottom: 1px solid var(--color-card);
    transition: background 0.1s;
    max-width: 100%;
    overflow: hidden;
}

.post-card:hover {
    background: var(--color-surface);
}

.post-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 8px;
}

.post-author {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}

.post-author-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    flex-shrink: 0;
    object-fit: cover;
    background: var(--color-card);
}

.post-author-initials {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--color-accent);
}

.post-author-info {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.post-author-name {
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--color-text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.post-author-handle {
    font-size: 0.8rem;
    color: var(--color-muted);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.post-timestamp {
    font-size: 0.78rem;
    color: var(--color-muted);
    white-space: nowrap;
    flex-shrink: 0;
}

.post-body {
    margin-left: 46px;
    margin-bottom: 8px;
}

.post-text {
    font-size: 0.93rem;
    line-height: 1.55;
    color: var(--color-text);
    white-space: pre-wrap;
    overflow-wrap: break-word;
    word-break: break-word;
}

.post-hashtag {
    color: var(--color-accent);
    font-weight: 500;
}

.post-meta {
    margin-left: 46px;
    display: flex;
    gap: 16px;
}

.post-count {
    font-size: 0.78rem;
    color: var(--color-muted);
    font-weight: 500;
}

.post-count::before {
    margin-right: 3px;
}

.post-count-reply::before  { content: '↩ '; }
.post-count-repost::before { content: '↻ '; }

.post-count-like {
    transition: color 0.1s;
}
.post-count-like:hover {
    color: var(--color-accent);
}
.post-count-like.liked {
    color: var(--color-accent);
}

/* ---- Post images ---- */

.post-images {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 8px;
    margin-left: 46px;
}

.post-image-link {
    display: block;
    flex: 1 1 calc(50% - 3px);
    max-width: 100%;
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--color-card);
}

.post-image {
    width: 100%;
    height: auto;
    max-height: 300px;
    object-fit: cover;
    display: block;
    border-radius: var(--radius);
}

/* ---- External link card ---- */

.link-card {
    display: flex;
    align-items: stretch;
    gap: 0;
    margin-top: 10px;
    border: 1px solid var(--color-card);
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--color-surface);
    color: var(--color-text);
    text-decoration: none;
    transition: border-color 0.15s;
    max-width: 100%;
}

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

.link-card-thumb {
    width: 96px;
    min-width: 96px;
    height: 96px;
    object-fit: cover;
    flex-shrink: 0;
}

.link-card-body {
    padding: 10px 12px;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 3px;
    justify-content: center;
}

.link-card-title {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--color-text);
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.link-card-desc {
    font-size: 0.8rem;
    color: var(--color-muted);
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.link-card-url {
    font-size: 0.75rem;
    color: var(--color-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-top: 2px;
}

/* =========================================================
   Feed states
   ========================================================= */

.feed-empty {
    padding: 48px 16px;
    text-align: center;
}

.feed-sentinel {
    list-style: none;
}

.feed-loading {
    padding: 24px;
    text-align: center;
    color: var(--color-muted);
    font-size: 0.85rem;
}

/* =========================================================
   Composer modal
   ========================================================= */

.composer-overlay {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-overlay);
    z-index: 100;
}

.composer-modal {
    background: var(--color-surface);
    border: 1px solid var(--color-card);
    border-radius: var(--radius);
    padding: 16px 20px 20px;
    width: 100%;
    max-width: 580px;
    max-height: 80vh;
    overflow-y: auto;
}

.composer-toolbar-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.btn-cancel {
    background: none;
    border: none;
    color: var(--color-muted);
    font-size: 0.9rem;
    font-weight: 500;
    padding: 6px 10px;
    border-radius: var(--radius);
    transition: color 0.12s, background 0.12s;
}

.btn-cancel:hover {
    color: var(--color-text);
    background: var(--color-card);
}

.btn-post {
    background: var(--color-accent);
    border: none;
    color: #000;
    font-size: 0.9rem;
    font-weight: 700;
    padding: 8px 20px;
    border-radius: var(--radius-full);
    transition: opacity 0.12s;
}

.btn-post:hover:not(:disabled) {
    opacity: 0.88;
}

.btn-post:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.composer-body {
    display: flex;
    gap: 12px;
    margin-bottom: 12px;
}

.composer-avatar {
    flex-shrink: 0;
}

.composer-textarea {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--color-text);
    font-family: var(--font);
    font-size: 1rem;
    line-height: 1.5;
    resize: none;
    min-height: 100px;
    outline: none;
    width: 100%;
}

.composer-textarea::placeholder {
    color: var(--color-muted);
}

.composer-suffix-preview {
    margin: 0 0 12px 50px;
    padding: 8px 12px;
    border-left: 3px solid var(--color-accent);
    background: var(--color-card);
    border-radius: 0 var(--radius) var(--radius) 0;
    color: var(--color-muted);
    font-size: 0.88rem;
    word-break: break-word;
}

.composer-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--color-card);
}

.composer-select {
    background: var(--color-card);
    border: 1px solid var(--color-muted);
    border-radius: var(--radius);
    color: var(--color-text);
    font-family: var(--font);
    font-size: 0.88rem;
    padding: 6px 10px;
    outline: none;
    flex: 1;
    max-width: 260px;
}

.composer-select:focus {
    border-color: var(--color-accent);
}

.char-counter {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-muted);
    min-width: 28px;
    text-align: right;
    flex-shrink: 0;
}

.char-counter.warn {
    color: var(--color-warn);
}

.char-counter.over {
    color: var(--color-error);
}

.composer-error {
    margin-top: 10px;
    padding: 8px 12px;
    background: var(--color-card);
    border-left: 3px solid var(--color-error);
    border-radius: 0 var(--radius) var(--radius) 0;
    color: var(--color-error);
    font-size: 0.88rem;
}

/* =========================================================
   Templates management page
   ========================================================= */

.templates-page {
    padding: 24px 20px;
    max-width: 680px;
}

.page-title {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--color-text);
    letter-spacing: -0.02em;
    margin-bottom: 4px;
}

.page-subtitle {
    font-size: 0.85rem;
    color: var(--color-muted);
    margin-bottom: 28px;
}

.section-heading {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-muted);
    margin-bottom: 10px;
}

.add-template-section {
    background: var(--color-surface);
    border: 1px solid var(--color-card);
    border-radius: var(--radius);
    padding: 16px;
    margin-bottom: 24px;
}

.add-template-form {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

/* ---- Shared input style for template forms ---- */

.tr-input {
    background: var(--color-card);
    border: 1px solid var(--color-muted);
    border-radius: var(--radius);
    color: var(--color-text);
    font-family: var(--font);
    font-size: 0.88rem;
    padding: 8px 10px;
    outline: none;
    transition: border-color 0.12s;
    min-width: 0;
}

.tr-input:focus {
    border-color: var(--color-accent);
}

.tr-input::placeholder {
    color: var(--color-muted);
}

.tr-input-suffix {
    flex: 1;
    min-width: 160px;
}

.btn-add-template {
    background: var(--color-accent);
    border: none;
    border-radius: var(--radius);
    color: #000;
    font-family: var(--font);
    font-size: 0.88rem;
    font-weight: 700;
    padding: 8px 18px;
    white-space: nowrap;
    transition: opacity 0.12s;
}

.btn-add-template:hover {
    opacity: 0.88;
}

.form-error {
    margin-top: 8px;
    padding: 7px 10px;
    background: var(--color-card);
    border-left: 3px solid var(--color-error);
    border-radius: 0 var(--radius) var(--radius) 0;
    color: var(--color-error);
    font-size: 0.82rem;
}

/* ---- Template list ---- */

.template-list {
    list-style: none;
    border: 1px solid var(--color-card);
    border-radius: var(--radius);
    overflow: hidden;
    transition: border-color 0.4s ease;
}

.template-list.reorder-saved {
    border-color: var(--color-accent);
}

.template-empty {
    padding: 32px 20px;
    text-align: center;
    color: var(--color-muted);
    font-size: 0.88rem;
}

/* ---- Template row ---- */

.template-row {
    border-bottom: 1px solid var(--color-card);
    background: var(--color-surface);
    transition: background 0.1s;
}

.template-row:last-child {
    border-bottom: none;
}

.template-row.dragging {
    opacity: 0.45;
}

.template-row.drag-over {
    border-top: 2px solid var(--color-accent);
    background: var(--color-card);
}

/* View state */

.tr-view {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
}

.drag-handle {
    color: var(--color-muted);
    font-size: 1rem;
    cursor: grab;
    flex-shrink: 0;
    user-select: none;
    letter-spacing: -3px;
}

.drag-handle:active {
    cursor: grabbing;
}

.tr-content {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.tr-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.tr-suffix {
    font-size: 0.8rem;
    color: var(--color-accent);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.tr-actions {
    display: flex;
    gap: 6px;
    flex-shrink: 0;
}

/* Shared row button */

.btn-tr {
    background: none;
    border: 1px solid var(--color-muted);
    border-radius: var(--radius);
    color: var(--color-muted);
    cursor: pointer;
    font-family: var(--font);
    font-size: 0.78rem;
    font-weight: 600;
    padding: 4px 10px;
    transition: border-color 0.12s, color 0.12s, background 0.12s;
}

.btn-tr:hover {
    border-color: var(--color-text);
    color: var(--color-text);
}

.btn-tr-save {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.btn-tr-save:hover {
    background: var(--color-accent);
    color: #000;
}

.btn-tr-danger {
    border-color: var(--color-error);
    color: var(--color-error);
}

.btn-tr-danger:hover {
    background: var(--color-error);
    color: #000;
}

/* Edit state */

.tr-edit {
    padding: 12px 14px;
}

.tr-edit form {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.tr-edit-fields {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.tr-edit-fields .tr-input:first-child {
    width: 180px;
}

.tr-edit-actions {
    display: flex;
    gap: 6px;
}

/* Delete confirmation state */

.tr-delete-confirm {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 14px;
    background: var(--color-card);
    flex-wrap: wrap;
}

.tr-confirm-label {
    flex: 1;
    font-size: 0.88rem;
    color: var(--color-text);
    font-weight: 500;
}

/* =========================================================
   Login page
   ========================================================= */

.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.login-card {
    background: var(--color-surface);
    border: 1px solid var(--color-card);
    border-radius: var(--radius);
    padding: 40px 36px;
    width: 100%;
    max-width: 380px;
    text-align: center;
}

.login-logo {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--color-accent);
    letter-spacing: -0.02em;
    margin-bottom: 6px;
}

.login-tagline {
    color: var(--color-muted);
    font-size: 0.88rem;
    margin-bottom: 32px;
}

.login-input {
    display: block;
    width: 100%;
    padding: 12px 14px;
    margin-bottom: 14px;
    background: var(--color-card);
    border: 1px solid var(--color-muted);
    border-radius: var(--radius);
    color: var(--color-text);
    font-size: 0.95rem;
    font-family: inherit;
    outline: none;
    transition: border-color 0.12s;
}

.login-input:focus {
    border-color: var(--color-accent);
}

.login-input::placeholder {
    color: var(--color-muted);
}

.btn-signin {
    display: block;
    width: 100%;
    padding: 12px;
    background: var(--color-accent);
    color: #000;
    border: none;
    border-radius: var(--radius);
    font-size: 0.95rem;
    font-weight: 700;
    transition: opacity 0.12s;
}

.btn-signin:hover {
    opacity: 0.88;
}

/* =========================================================
   Error pages (404, 500)
   ========================================================= */

.error-page {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    gap: 12px;
    text-align: center;
    padding: 32px;
}

.error-code {
    font-size: 5rem;
    font-weight: 800;
    color: var(--color-accent);
    line-height: 1;
}

.error-message {
    font-size: 1.1rem;
    color: var(--color-muted);
}

.btn-primary {
    display: inline-block;
    margin-top: 8px;
    padding: 10px 24px;
    background: var(--color-accent);
    color: #000;
    border-radius: var(--radius);
    font-weight: 700;
    font-size: 0.95rem;
    text-decoration: none;
}

.btn-primary:hover {
    opacity: 0.88;
    text-decoration: none;
}

/* =========================================================
   Responsive breakpoints
   ========================================================= */

/* Hide right rail below 600px — layout becomes two-column */
@media (max-width: 600px) {
    .app {
        grid-template-columns: var(--rail-l) minmax(0, 1fr);
    }

    .right-rail {
        display: none;
    }
}

/* Below 480px: collapse left rail to avatar + New Post button only */
@media (max-width: 480px) {
    .app {
        grid-template-columns: 64px minmax(0, 1fr);
    }

    .left-rail {
        padding: 12px 8px;
        align-items: center;
    }

    .profile {
        flex-direction: column;
        padding: 0 0 16px;
        gap: 0;
    }

    .handle,
    .nav,
    .btn-logout {
        display: none;
    }

    .btn-new-post {
        width: 40px;
        height: 40px;
        padding: 0;
        border-radius: var(--radius-full);
        font-size: 1.4rem;
        line-height: 40px;
        text-align: center;
        overflow: hidden;
        text-indent: -9999px;
    }

    .btn-new-post::after {
        content: '+';
        display: block;
        text-indent: 0;
        font-size: 1.5rem;
        line-height: 40px;
    }
}