/* Mekanikum Design System — v1.1 */
/* Industrial light theme. Token-first, responsive, accessible. */

:root {
  /* ── Typography ── */
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, "Cascadia Mono", Consolas, monospace;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-bold: 700;
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.5rem;
  --text-2xl: 2rem;
  --text-3xl: 3rem;
  --leading-tight: 1.2;
  --leading-normal: 1.6;
  --leading-relaxed: 1.75;

  /* ── Spacing ── */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;

  /* ── Color — derived from logo: white base, dark charcoal/slate gear, near-black skull ── */
  --color-bg: #f7f7f7;
  --color-surface: #ffffff;
  --color-surface-raised: #f0f0f0;
  --color-text: #1a1a1a;
  --color-text-secondary: #555555;
  --color-text-tertiary: #888888;
  --color-border: #e0e0e0;
  --color-border-subtle: #f0f0f0;
  --color-accent: #c0392b;
  --color-accent-hover: #a93226;
  --color-accent-text: #ffffff;

  /* ── Layout ── */
  --max-width: 112ch;
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;

  /* ── Motion ── */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
}

/* ── Reset ── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text);
  background-color: var(--color-bg);
}

/* ── Layout ── */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

/* ── Header ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 3.5rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: var(--font-weight-bold);
  font-size: var(--text-lg);
  color: var(--color-text);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.brand img {
  height: 2rem;
  width: auto;
}

.brand:hover {
  color: var(--color-accent);
  transition: color var(--transition-fast);
}

/* ── Navigation ── */
.nav-list {
  display: flex;
  gap: var(--space-6);
  list-style: none;
  padding: 0;
}

.nav-list a {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  transition: color var(--transition-fast);
}

.nav-list a:hover,
.nav-list a[aria-current="page"] {
  color: var(--color-accent);
}

/* ── Main ── */
main {
  padding-block: var(--space-16);
}

/* ── Typography ── */
h1, h2, h3, h4 {
  line-height: var(--leading-tight);
  font-weight: var(--font-weight-bold);
  letter-spacing: -0.02em;
  color: #445760;
}

h1 { font-size: var(--text-3xl); }
h2 { font-size: var(--text-2xl); margin-top: var(--space-12); margin-bottom: var(--space-4); }
h3 { font-size: var(--text-xl); margin-top: var(--space-8); margin-bottom: var(--space-3); }

p {
  margin-bottom: var(--space-4);
  color: var(--color-text-secondary);
}

a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 0.15em;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-accent-hover);
}

/* ── Hero ── */
.hero {
  padding-block: var(--space-20);
  text-align: center;
}

.hero .logo-mark {
  height: 6rem;
  width: auto;
  margin-bottom: var(--space-6);
}

.hero h1 {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-4);
  color: var(--color-text);
}

.hero p {
  font-size: var(--text-lg);
  color: var(--color-text-tertiary);
  max-width: 60ch;
  margin-inline: auto;
}

/* ── Cards / Sections ── */
.section {
  margin-bottom: var(--space-12);
}

.section-title {
  font-size: var(--text-xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-4);
  color: var(--color-text);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(16rem, 1fr));
  gap: var(--space-6);
}

.card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}

.card:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.card h3 {
  font-size: var(--text-lg);
  margin-top: 0;
  margin-bottom: var(--space-2);
  color: var(--color-text);
}

.card p {
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
  margin-bottom: 0;
}

/* ── Footer ── */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-8);
  color: var(--color-text-tertiary);
  font-size: var(--text-sm);
  background-color: var(--color-surface);
}

.site-footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-footer p {
  margin: 0;
}

/* ── Header auth links ── */
.nav-auth {
  display: flex;
  gap: var(--space-4);
  align-items: center;
}

.nav-auth a {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  text-decoration: none;
}

.nav-auth a:hover {
  color: var(--color-accent);
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  line-height: var(--leading-tight);
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

.btn-primary {
  color: var(--color-accent-text);
  background-color: var(--color-accent);
  border-color: var(--color-accent);
}

.btn-primary:hover {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: var(--color-accent-text);
}

.btn-secondary {
  color: var(--color-text);
  background-color: var(--color-surface);
  border-color: var(--color-border);
}

.btn-secondary:hover {
  background-color: var(--color-surface-raised);
  border-color: var(--color-text-tertiary);
}

.btn-sm {
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-xs);
}

/* ── Home 3-column grid ── */
.home-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-8);
  align-items: start;
}

.home-col {
  min-width: 0;
}

.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border);
}

.section-header h2 {
  font-size: var(--text-lg);
  margin: 0;
  color: #445760;
}

.section-meta {
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.section-link {
  font-size: var(--text-sm);
  text-decoration: none;
}

.text-muted {
  color: var(--color-text-tertiary);
  font-size: var(--text-sm);
}

/* ── News items (home cards) ── */
.news-item {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  margin-bottom: var(--space-6);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.news-item:hover {
  border-color: var(--color-accent);
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

a.news-card:hover .news-item {
  border-color: var(--color-accent);
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.news-card {
  display: block;
  text-decoration: none;
  margin-bottom: var(--space-6);
}

.news-card:last-child {
  margin-bottom: 0;
}

.news-card:last-child .news-item {
  margin-bottom: 0;
}

.news-item h3 {
  font-size: var(--text-base);
  margin: 0 0 var(--space-1);
  color: var(--color-text);
}

.news-item h3 a {
  text-decoration: none;
}

.news-item time {
  display: block;
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-2);
}

.news-item p {
  font-size: var(--text-sm);
  margin-bottom: 0;
  color: var(--color-text-secondary);
}

/* ── Stock items ── */
.stock-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.stock-item {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.stock-item:hover {
  border-color: var(--color-accent);
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.stock-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  min-width: 0;
}

.stock-symbol {
  font-weight: var(--font-weight-bold);
  font-size: var(--text-sm);
  color: var(--color-text);
}

.stock-name {
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.stock-price {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: var(--space-1);
  flex-shrink: 0;
}

.stock-value {
  font-weight: var(--font-weight-bold);
  font-size: var(--text-base);
  color: var(--color-text);
}

.stock-change {
  font-size: var(--text-xs);
  font-weight: var(--font-weight-medium);
}

.stock-change.positive {
  color: #16a34a;
}

.stock-change.negative {
  color: #dc2626;
}

.nav-user {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
}

.logout-form {
  display: block;
  width: 100%;
  margin: 0;
}

.logout-form button,
.logout-form [type="submit"] {
  display: block;
  width: 100%;
  padding: var(--space-3) var(--space-4);
  color: var(--color-text);
  background: transparent;
  border: none;
  font-size: var(--text-sm);
  text-align: left;
  cursor: pointer;
}

.logout-form button:hover,
.logout-form [type="submit"]:hover {
  background-color: var(--color-bg);
  color: var(--color-accent);
}

/* ── Profile dropdown ── */
.nav-profile {
  position: relative;
}

.avatar-button {
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  border-radius: 50%;
}

.nav-avatar {
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--color-border);
  transition: border-color var(--transition-fast);
}

.avatar-button:hover .nav-avatar,
.avatar-button:focus .nav-avatar {
  border-color: var(--color-accent);
}

.nav-avatar-placeholder {
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: var(--color-accent-text);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-weight-bold);
  font-size: var(--text-sm);
  border: 2px solid transparent;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + var(--space-2));
  right: 0;
  z-index: 100;
  min-width: 12rem;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  list-style: none;
  padding: var(--space-2) 0;
  margin: 0;
  display: none;
}

.dropdown-menu.open {
  display: block;
}

.dropdown-menu li {
  padding: 0;
}

.dropdown-menu a,
.dropdown-menu button {
  display: block;
  width: 100%;
  padding: var(--space-3) var(--space-4);
  color: var(--color-text);
  text-decoration: none;
  font-size: var(--text-sm);
  background: transparent;
  border: none;
  text-align: left;
  cursor: pointer;
}

.dropdown-menu a:hover,
.dropdown-menu button:hover {
  background-color: var(--color-bg);
  color: var(--color-accent);
}

.dropdown-divider {
  height: 1px;
  margin: var(--space-2) var(--space-4);
  background-color: var(--color-border);
  padding: 0;
}

/* ── Forum / Community ── */
.forum-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

.forum-header h1 {
  margin: 0;
  font-size: var(--text-2xl);
}

.post-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.post-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-4);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.post-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.post-score {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 3rem;
  gap: var(--space-1);
}

.post-score .score-value {
  font-weight: var(--font-weight-bold);
  font-size: var(--text-lg);
  color: var(--color-text);
}

.post-score .vote-btn {
  background: transparent;
  border: none;
  color: var(--color-text-tertiary);
  cursor: pointer;
  font-size: var(--text-xl);
  line-height: 1;
  padding: var(--space-1);
}

.post-score .vote-btn:hover,
.post-score .vote-btn.active {
  color: var(--color-accent);
}

.post-title-row {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-2);
}

.post-title-row .post-title-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
}

.post-title-row .post-title-content .post-meta {
  margin-top: var(--space-1);
}

.post-avatar {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  border: 1px solid var(--color-border);
}

.post-avatar-placeholder {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: var(--color-accent-text);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-weight-bold);
  font-size: var(--text-sm);
  flex-shrink: 0;
}

.post-avatar-lg {
  width: 2.25rem;
  height: 2.25rem;
  font-size: var(--text-sm);
}

.post-title-row .post-title {
  margin: 0;
}

.post-detail .post-title-row {
  align-items: flex-start;
  margin-bottom: var(--space-2);
}

.post-detail .post-title-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
}

.post-detail .post-title-content h1 {
  font-size: var(--text-base);
  font-weight: var(--font-weight-bold);
  margin-bottom: 0;
  line-height: var(--leading-tight);
}

.post-detail .post-title-content .post-meta {
  margin-top: var(--space-1);
}

/* ── Comment avatars ── */
.comment-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-2);
}

.comment-avatar {
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--color-border);
}

.comment-avatar-placeholder {
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: var(--color-accent-text);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-weight-bold);
  font-size: var(--text-xs);
}

.comment-meta {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.vote-form {
  margin: 0;
  display: inline-flex;
}

.post-content {
  min-width: 0;
}

.post-title {
  font-size: var(--text-base);
  font-weight: var(--font-weight-bold);
  margin: 0;
  line-height: var(--leading-tight);
}

.post-title a {
  text-decoration: none;
  color: var(--color-text);
}

.post-title a:hover {
  color: var(--color-accent);
}

.post-meta {
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
  margin: var(--space-1) 0 0;
}

.post-excerpt {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin: var(--space-2) 0 0;
  line-height: var(--leading-normal);
  white-space: pre-wrap;
}

.post-actions {
  display: flex;
  gap: var(--space-4);
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
}

.post-actions a {
  text-decoration: none;
}

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

.btn-ghost:hover {
  color: var(--color-text);
  background-color: var(--color-surface-raised);
}

/* ── Reply forms and actions ── */
.comment-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-2);
}

.comment-actions .vote-btn {
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  line-height: 1;
}

.comment-actions .vote-btn:hover,
.comment-actions .vote-btn.active {
  color: var(--color-accent);
}

.comment-actions .score-value {
  font-size: var(--text-xs);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  min-width: 1.25rem;
  text-align: center;
}

.reply-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.reply-form {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--space-3);
  margin-top: var(--space-4);
}

.reply-form[hidden] {
  display: none;
}

.reply-form .auth-form {
  margin: 0;
}

.reply-form .auth-form textarea {
  min-height: 4rem;
  margin-bottom: var(--space-2);
  border: none;
  border-bottom: 1px solid var(--color-border);
  border-radius: 0;
  background: transparent;
  padding: var(--space-2) 0;
  resize: vertical;
}

.reply-form .auth-form textarea:focus {
  box-shadow: none;
  border-color: var(--color-accent);
}

.reply-form .auth-form button {
  width: auto;
}

.reply-form-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-3);
}

.reply-form-actions .btn {
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-xs);
}

.reply-form-post {
  margin-top: var(--space-3);
  border-top: none;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
}

/* ── Post detail ── */
.post-detail {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-4);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  margin-bottom: 0;
}

.post-detail .post-body {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: var(--leading-normal);
  white-space: pre-wrap;
  margin-top: var(--space-2);
  margin-bottom: var(--space-2);
}

.comment-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.comment-list-header {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border);
}

.comment-list-title {
  display: none;
}

.comment-sort-form {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.comment-sort-form select {
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  outline: none;
}

.comment-sort-form select:focus {
  border-color: var(--color-accent);
}

.comment-list-controls {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.comment-search-form {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.comment-search-form input[type="text"] {
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  outline: none;
  min-width: 12rem;
}

.comment-search-form input[type="text"]:focus {
  border-color: var(--color-accent);
}

.comment-search-form button,
.comment-search-form a {
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-xs);
}

.comment {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3);
}

.comment-replies {
  margin-top: var(--space-3);
  padding-left: var(--space-4);
  border-left: 2px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.comment-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-2);
}

.comment-author {
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
}

.comment-body {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: var(--leading-normal);
  margin-bottom: 0;
  white-space: pre-wrap;
}

.comment-form {
  display: none;
}

/* ── Auth forms ── */
.auth-body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - 7rem);
  padding-block: var(--space-4);
}

.auth-card {
  width: 100%;
  max-width: 24rem;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-8);
}

.auth-card h1 {
  font-size: var(--text-lg);
  text-align: center;
  margin-bottom: var(--space-4);
  margin-top: 0;
}

.auth-card.submit-card h1 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-4);
}

.auth-form label {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--space-2);
  color: var(--color-text-secondary);
}

.auth-form input,
.auth-form textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  margin-bottom: var(--space-4);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  font-family: inherit;
}

.auth-form textarea {
  min-height: 8rem;
  resize: vertical;
}

.auth-form input:focus,
.auth-form textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(192, 57, 43, 0.15);
}

.auth-form button {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-accent-text);
  background-color: var(--color-accent);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.auth-form button:hover {
  background-color: var(--color-accent-hover);
}

.auth-error {
  color: var(--color-accent);
  font-size: var(--text-sm);
  margin-bottom: var(--space-4);
  text-align: center;
}

.auth-link {
  text-align: center;
  margin-top: var(--space-6);
  margin-bottom: 0;
  font-size: var(--text-sm);
}

/* ── Submit post form ── */
.submit-form input[type="text"],
.submit-form textarea {
  width: 100%;
}

.submit-form-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-3);
  margin-top: var(--space-2);
}

.submit-form-actions .btn {
  width: auto;
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-xs);
}

.submit-form textarea {
  min-height: 6rem;
  resize: vertical;
}

.submit-card {
  max-width: 32rem;
}

/* ── Profile card ── */
.profile-card {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  padding: var(--space-8);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.profile-avatar {
  width: 8rem;
  height: 8rem;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--color-border);
}

.profile-avatar-placeholder {
  width: 8rem;
  height: 8rem;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: var(--color-accent-text);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-2xl);
  font-weight: var(--font-weight-bold);
}

.profile-info h1 {
  margin-top: 0;
  margin-bottom: var(--space-2);
}

.profile-info p {
  margin-bottom: var(--space-2);
}

.profile-section {
  margin-top: var(--space-6);
  padding: var(--space-6);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.profile-section h2 {
  font-size: var(--text-lg);
  margin-top: 0;
  margin-bottom: var(--space-4);
}

.profile-form {
  margin-bottom: var(--space-6);
}

.profile-form:last-child {
  margin-bottom: 0;
}

.profile-form button {
  width: auto;
}

.vote-stats {
  display: flex;
  gap: var(--space-6);
}

.vote-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--space-4) var(--space-6);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  min-width: 7rem;
}

.vote-stat-value {
  font-size: var(--text-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
}

.vote-stat.upvotes .vote-stat-value {
  color: var(--color-accent);
}

.vote-stat.downvotes .vote-stat-value {
  color: var(--color-text-secondary);
}

.vote-stat-label {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.top-comment {
  padding: var(--space-4);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.top-comment-score {
  font-weight: var(--font-weight-bold);
  color: var(--color-accent);
  margin: 0 0 var(--space-2);
}

.top-comment-content {
  margin: 0 0 var(--space-2);
  color: var(--color-text);
}

.top-comment-post {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

/* ── New users grid ── */
.new-users-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.user-card {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.user-card-avatar,
.user-card-avatar-placeholder {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.user-card-avatar-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-accent);
  color: var(--color-accent-text);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-bold);
}

.user-card-info {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.user-card-name {
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  font-size: var(--text-sm);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.user-card-date {
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
}

/* ── Account settings toggle ── */
.settings-toggle {
  cursor: pointer;
  user-select: none;
  position: relative;
  padding-left: var(--space-6);
}

.settings-toggle::before {
  content: "▸";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--color-accent);
}

.settings-toggle.open::before {
  content: "▾";
}

.settings-panel {
  margin-top: var(--space-4);
}

.settings-panel[hidden] {
  display: none;
}

/* ── Admin panel ── */
.admin-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-6);
}

.admin-header h1 {
  font-size: var(--text-2xl);
  margin: 0;
}

.admin-user-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.admin-user-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-4);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  flex-wrap: wrap;
}

.admin-user-info {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  min-width: 0;
}

.admin-user-avatar,
.admin-user-avatar-placeholder {
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.admin-user-avatar-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-accent);
  color: var(--color-accent-text);
  font-weight: var(--font-weight-bold);
}

.admin-user-name {
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
}

.admin-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.125rem var(--space-2);
  margin-left: var(--space-2);
  background-color: var(--color-accent);
  color: var(--color-accent-text);
  font-size: var(--text-xs);
  border-radius: var(--radius-sm);
}

.admin-badge.banned {
  background-color: var(--color-text-tertiary);
}

.admin-user-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.admin-action-form {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin: 0;
}

.admin-input {
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background-color: var(--color-surface);
  color: var(--color-text);
  width: 10rem;
}

.admin-action-form button {
  white-space: nowrap;
}

.btn-danger {
  background-color: #c0392b;
  color: #fff;
}

.btn-danger:hover {
  background-color: #a93226;
}

.btn-warning {
  background-color: #f39c12;
  color: #fff;
}

.btn-warning:hover {
  background-color: #e67e22;
}

/* ── Messages ── */
.message-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.message-card {
  padding: var(--space-4);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.message-card.message-in {
  border-left: 4px solid var(--color-accent);
}

.message-card.message-out {
  border-left: 4px solid var(--color-text-tertiary);
}

.message-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.message-subject {
  font-size: var(--text-base);
  margin: 0 0 var(--space-2);
  color: var(--color-text);
}

.message-content {
  margin: 0 0 var(--space-3);
  color: var(--color-text-secondary);
  white-space: pre-wrap;
}

.message-reply-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

.message-reply-form textarea {
  width: 100%;
  padding: var(--space-3);
  font-family: inherit;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  resize: vertical;
}

/* ── Admin delete post/comment button ── */
.admin-delete-form {
  display: inline-flex;
  margin: 0;
}

/* ── Help page ── */
.help-page h1 {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-6);
}

.help-page h3 {
  font-size: var(--text-base);
  margin-top: var(--space-4);
  margin-bottom: var(--space-2);
  color: var(--color-text);
}

.help-page pre {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  overflow-x: auto;
  margin-bottom: var(--space-4);
}

.help-page code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: var(--text-sm);
  color: var(--color-text);
  white-space: pre;
}

.help-list {
  padding-left: var(--space-6);
  margin: 0;
  color: var(--color-text-secondary);
}

.help-list li {
  margin-bottom: var(--space-2);
}

/* ── Avatar cropper ── */
.avatar-preview-wrap {
  display: flex;
  justify-content: center;
  margin-bottom: var(--space-6);
}

.cropper-wrap {
  margin-bottom: var(--space-6);
}

.cropper-frame {
  position: relative;
  margin: 0 auto var(--space-4);
  border-radius: 50%;
  overflow: hidden;
  background-color: var(--color-bg);
  border: 2px solid var(--color-border);
  cursor: grab;
  touch-action: none;
}

.cropper-frame:active {
  cursor: grabbing;
}

.cropper-frame canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.cropper-mask {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.35);
  pointer-events: none;
}

.cropper-controls {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-2);
}

.cropper-controls label {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin: 0;
}

.cropper-controls input[type="range"] {
  flex: 1;
  margin: 0;
}

.cropper-hint {
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
  margin: 0;
  text-align: center;
}

/* ── File input ── */
.auth-form input[type="file"] {
  padding: var(--space-2) 0;
  background: transparent;
  border: none;
}

/* ── Focus visibility ── */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

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

/* ── Dark mode ── */
@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #0f0f0f;
    --color-surface: #1a1a1a;
    --color-surface-raised: #222222;
    --color-text: #e8e8e8;
    --color-text-secondary: #a0a0a0;
    --color-text-tertiary: #707070;
    --color-border: #333333;
    --color-border-subtle: #1a1a1a;
    --color-accent: #e74c3c;
    --color-accent-hover: #c0392b;
    --color-accent-text: #ffffff;
  }

  .site-header {
    background-color: rgba(15, 15, 15, 0.92);
  }
}

/* ── Responsive ── */
@media (max-width: 960px) {
  .home-grid {
    grid-template-columns: 1fr 1fr;
  }

  .home-col-left {
    grid-column: 1 / -1;
  }
}

@media (max-width: 640px) {
  :root {
    --text-3xl: 2.25rem;
    --text-2xl: 1.75rem;
  }

  .site-header .container {
    height: auto;
    padding-block: var(--space-3);
    flex-direction: column;
    gap: var(--space-3);
  }

  .nav-list {
    gap: var(--space-4);
  }

  .hero {
    padding-block: var(--space-12);
  }

  .hero .logo-mark {
    height: 4rem;
  }

  main {
    padding-block: var(--space-8);
  }

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

  .home-col-left {
    grid-column: auto;
  }

  .site-footer .container {
    flex-direction: column;
    gap: var(--space-2);
    text-align: center;
  }
}