/* ================= BASE & DESIGN SYSTEM ================= */
:root {
  --bg: #f8fafc;
  --card: #ffffff;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --accent: #4f46e5;
  --accent-hover: #4338ca;
  --border: #e2e8f0;
  --danger: #ef4444;
  --danger-hover: #dc2626;
  --success: #10b981;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --header-height: 70px;
}

body.dark {
  --bg: #0f172a;
  --card: #1e293b;
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --border: #334155;
  --shadow: 0 10px 15px -3px rgb(0 0 0 / 0.3), 0 4px 6px -4px rgb(0 0 0 / 0.3);
}

* {
  box-sizing: border-box;
}

body {
  visibility: hidden;
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text-main);
  transition: background-color 0.3s ease, color 0.3s ease;
  line-height: 1.6;
  overflow-x: hidden;
}

/* ================= TYPOGRAPHY ================= */
h1, h2, h3, h4 {
  color: var(--text-main);
  margin-top: 0;
  font-weight: 700;
  letter-spacing: -0.025em;
}

h1 { font-size: 2.25rem; margin-bottom: 1.5rem; }
h2 { font-size: 1.5rem; margin-bottom: 1rem; }
h3 { font-size: 1.25rem; margin-bottom: 0.75rem; }

p { color: var(--text-main); margin-bottom: 1rem; opacity: 0.9; }
small { color: var(--text-muted); font-size: 0.875rem; font-weight: 500; }

/* ================= GLOBAL HEADER ================= */
.global-header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(8px);
  background: rgba(var(--card-rgb, 255, 255, 255), 0.8);
}

body.dark .global-header {
  background: rgba(30, 41, 59, 0.8);
}

.header-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: var(--header-height);
}

.nav-links {
  display: flex;
  gap: 8px;
}

.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 600;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

.nav-link:hover {
  color: var(--text-main);
  background: var(--bg);
}

.nav-link.active {
  color: var(--accent);
  background: rgba(79, 70, 229, 0.1);
}

.user-controls {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Theme Toggle */
.theme-toggle {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text-main);
  width: 36px;
  height: 36px;
  cursor: pointer;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  padding: 0;
}

.theme-toggle:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}

/* ================= CONTAINERS & GRIDS ================= */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 32px 24px;
}

.card {
  background: var(--card);
  padding: 24px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  margin-bottom: 24px;
  position: relative;
  overflow: hidden; /* Prevent content overflow */
}

.story-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
  width: 100%;
}

/* ================= INTERACTIVE CARDS ================= */
.card.hoverable {
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
}

.card.hoverable:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: var(--accent);
}

/* ================= BUTTONS ================= */
button {
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  background: var(--accent);
  color: white;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

button:hover { background: var(--accent-hover); transform: translateY(-1px); }
button:active { transform: translateY(0); }
button:disabled {
  background: var(--text-muted);
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

button.secondary {
  background: var(--card);
  border-color: var(--border);
  color: var(--text-main);
}
button.secondary:hover {
  background: var(--bg);
  border-color: var(--text-muted);
}

button.danger { background: var(--danger); }
button.danger:hover { background: var(--danger-hover); }

button.icon-btn {
  padding: 8px;
  background: transparent;
  color: var(--text-muted);
  border: none;
  min-width: 32px;
  height: 32px;
}
button.icon-btn:hover {
  background: var(--bg);
  color: var(--text-main);
  border-radius: var(--radius-sm);
}

/* ================= INPUTS ================= */
input, textarea, select {
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.9375rem;
  transition: all 0.2s ease;
  box-sizing: border-box;
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
  background: var(--card);
}

/* ================= SEARCH & TABS ================= */
.search-container {
  margin-bottom: 24px;
  position: relative;
}

.search-input {
  padding-left: 44px;
}

.search-container::before {
  content: '🔍';
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-55%); /* Nudged up slightly for better visual alignment */
  font-size: 14px;
  color: var(--text-muted);
  z-index: 1;
  pointer-events: none;
}

.tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 24px;
  background: var(--bg);
  padding: 4px;
  border-radius: var(--radius-sm);
  width: fit-content;
}

.tabs button {
  background: transparent;
  color: var(--text-muted);
  border: none;
  padding: 8px 20px;
  border-radius: calc(var(--radius-sm) - 2px);
}

.tabs button.active {
  background: var(--card);
  color: var(--accent);
  box-shadow: var(--shadow-sm);
}

/* ================= COMMENTS DRAWER ================= */
.archive-layout {
  display: flex;
  gap: 0;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  min-height: calc(100vh - 150px);
}

.archive-main {
  flex: 1;
  min-width: 0;
}

.comments-drawer {
  width: 0;
  height: calc(100vh - var(--header-height) - 40px);
  position: sticky;
  top: calc(var(--header-height) + 20px);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1), margin 0.3s ease;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow);
}

.comments-drawer.open {
  width: 400px;
  margin-left: 24px;
}

.drawer-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.drawer-content {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
}

.drawer-footer {
  padding: 20px 24px;
  border-top: 1px solid var(--border);
  background: var(--card);
}

/* ================= INTERACTIONS ================= */
.item-action-row {
  display: flex;
  gap: 8px;
  align-items: center;
}

.action-icon-btn {
  background: var(--bg);
  border: 1px solid var(--border);
  cursor: pointer;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
  color: var(--text-muted);
  font-weight: 600;
  transition: all 0.2s ease;
}

.action-icon-btn:hover {
  background: var(--border);
  color: var(--text-main);
}

.action-icon-btn.liked {
  color: var(--danger);
  border-color: var(--danger);
  background: rgba(239, 68, 68, 0.05);
}

/* ================= COMMUNITY FEED ================= */
.post-actions {
  display: flex;
  gap: 12px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.comments-section {
  margin-top: 16px;
  background: var(--bg);
  border-radius: var(--radius-sm);
  padding: 16px;
  border: 1px solid var(--border);
}

.comment {
  margin-bottom: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.comment:last-child { border-bottom: none; margin-bottom: 0; }

.comment-author { font-weight: 700; font-size: 0.75rem; color: var(--accent); }
.comment-text { font-size: 0.875rem; display: block; margin-top: 2px; }

/* ================= STORY PAGE ================= */
.story-page {
  display: flex;
  gap: 32px;
  align-items: flex-start;
}

.chapter-list {
  width: 280px;
  position: sticky;
  top: calc(var(--header-height) + 32px);
  max-height: calc(100vh - var(--header-height) - 64px);
  padding: 16px;
}

.chapter-item {
  padding: 12px 16px;
  margin-bottom: 4px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.chapter-item:hover { background: var(--bg); color: var(--text-main); }
.chapter-item.active { background: var(--accent); color: white; }

.story-viewer {
  flex: 1;
  padding: 48px;
  min-width: 0;
}

/* ================= PREMIUM AUTH PAGE ================= */
.login-page-bg {
  min-height: calc(100vh - var(--header-height));
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(79, 70, 229, 0.05) 0%, rgba(255, 255, 255, 0) 100%);
}

body.dark .login-page-bg {
  background: linear-gradient(135deg, rgba(79, 70, 229, 0.1) 0%, rgba(15, 23, 42, 0) 100%);
}

.auth-container {
  width: 100%;
  max-width: 440px;
  padding: 40px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.auth-brand-header {
  text-align: center;
  margin-bottom: 32px;
}

.auth-logo {
  font-size: 48px;
  margin-bottom: 16px;
  display: inline-block;
  background: linear-gradient(135deg, var(--card) 0%, rgba(79, 70, 229, 0.1) 100%);
  padding: 16px;
  border-radius: 20px;
  box-shadow: 0 0 20px rgba(79, 70, 229, 0.2);
  border: 1px solid var(--accent);
}

.auth-brand-header h1 {
  font-size: 1.75rem;
  margin-bottom: 8px;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.auth-brand-header p {
  color: var(--text-muted);
  font-size: 1rem;
}

.modern-shadow {
  box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.05), 0 8px 10px -6px rgb(0 0 0 / 0.01);
  padding: 32px;
  border-radius: 16px;
  margin-bottom: 0;
  width: 100%;
}

body.dark .modern-shadow {
  box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.3), 0 8px 10px -6px rgb(0 0 0 / 0.2);
}

.input-group {
  margin-bottom: 20px;
}

.input-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 8px;
}

.input-group input {
  padding: 12px 16px;
  background: var(--bg);
  border-radius: var(--radius-sm);
}

.input-group input:focus {
  background: var(--card);
}

/* Custom Checkbox */
.checkbox-container {
  display: flex;
  align-items: center;
  position: relative;
  padding-left: 28px;
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--text-muted);
  user-select: none;
  margin-top: 12px;
  line-height: 1.4;
}

.checkbox-container input {
  position: absolute;
  opacity: 0;
  cursor: pointer;
  height: 0;
  width: 0;
}

.checkmark {
  position: absolute;
  top: 50%;
  left: 0;
  transform: translateY(-50%);
  height: 18px;
  width: 18px;
  background-color: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  transition: all 0.2s ease;
}

.checkbox-container:hover input ~ .checkmark {
  border-color: var(--text-muted);
}

.checkbox-container input:checked ~ .checkmark {
  background-color: var(--accent);
  border-color: var(--accent);
}

.checkmark:after {
  content: "";
  position: absolute;
  display: none;
}

.checkbox-container input:checked ~ .checkmark:after {
  display: block;
}

.checkbox-container .checkmark:after {
  left: 6px;
  top: 2px;
  width: 4px;
  height: 9px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

/* Buttons */
.auth-btn-group {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 32px;
}

.primary-btn {
  width: 100%;
  padding: 12px;
  font-size: 1rem;
}

.ghost-btn {
  background: transparent;
  color: var(--text-muted);
  width: 100%;
  padding: 12px;
  border: none;
}

.ghost-btn:hover {
  background: var(--bg);
  color: var(--text-main);
  transform: none;
}

.outline-btn {
  background: transparent;
  width: 100%;
  padding: 12px;
  border: 1px solid var(--border);
  color: var(--text-muted);
}

.outline-btn:hover {
  background: var(--bg);
  border-color: var(--text-muted);
  color: var(--text-main);
}

.accent-outline {
  border-color: var(--accent);
  color: var(--accent);
}

.accent-outline:hover {
  background: rgba(79, 70, 229, 0.05);
}

/* Divider */
.divider {
  display: flex;
  align-items: center;
  text-align: center;
  margin: 8px 0;
}

.divider::before, .divider::after {
  content: '';
  flex: 1;
  border-bottom: 1px solid var(--border);
}

.divider span {
  padding: 0 12px;
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

/* Specific Auth Elements */
.agreement-box {
  background: var(--bg);
  padding: 16px;
  border-radius: var(--radius-sm);
  border: 1px dashed var(--border);
}

.agreement-label {
  margin-top: 0;
  font-size: 0.8125rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.guest-warning-banner {
  display: flex;
  gap: 12px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  align-items: flex-start;
}

.warning-icon {
  font-size: 20px;
}

.warning-text {
  font-size: 0.8125rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ================= FEEDBACK & UTILS ================= */
.toast {
  background: var(--card);
  color: var(--text-main);
  padding: 16px 24px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  font-size: 0.875rem;
  z-index: 2000;
}

.toast.loading { border-left: 4px solid var(--accent); }
.toast.success { border-left: 4px solid var(--success); }
.toast.error { border-left: 4px solid var(--danger); }

/* ================= MOBILE ================= */
@media (max-width: 1024px) {
  .comments-drawer.open {
    width: 320px;
  }
}

@media (max-width: 768px) {
  .story-page { flex-direction: column; }
  .chapter-list { width: 100%; position: static; max-height: 250px; }
  .story-viewer { padding: 24px; }
  .archive-layout { flex-direction: column; }
  .comments-drawer.open { width: 100%; margin-left: 0; margin-top: 24px; position: static; }
  .header-container { padding: 0 16px; }
  .nav-links { overflow-x: auto; padding-bottom: 4px; }
}

/* ================= USER DROPDOWN ================= */
.user-dropdown {
  position: relative;
  display: inline-block;
}

.dropdown-btn {
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
  transition: all 0.2s ease;
}

.dropdown-btn:hover {
  border-color: var(--accent);
  background: var(--card);
}

.dropdown-content {
  display: none;
  position: absolute;
  right: 0;
  top: 100%;
  background: var(--card);
  min-width: 160px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  z-index: 10000;
  margin-top: 8px;
  padding: 8px 0;
  overflow: hidden;
}

.dropdown-content button {
  width: 100%;
  text-align: left;
  background: transparent;
  border: none;
  padding: 10px 16px;
  font-size: 14px;
  border-radius: 0;
  color: var(--text-main);
  cursor: pointer;
}

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

.dropdown-content button.danger-text {
  color: #ef4444;
}

.dropdown-content button.danger-text:hover {
  background: #fef2f2;
}

.dropdown-content.show {
  display: block;
}

/* Modal for deletion */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 20000;
  backdrop-filter: blur(4px);
}

.modal-card {
  background: var(--card);
  padding: 32px;
  border-radius: var(--radius-lg);
  max-width: 400px;
  width: 90%;
  box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1);
  text-align: center;
}