/* ====================================================
   LinkSnap — Material Design 3 (Google Style)
   ==================================================== */

/* Google Fonts — Roboto */
@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500;700&family=Google+Sans:wght@400;500;700&display=swap');

:root {
  /* MD3 Dark Theme — Google style */
  --md-primary: #8ab4f8;
  --md-primary-container: #1a3a6b;
  --md-on-primary: #062e6f;
  --md-on-primary-container: #d2e3fc;
  --md-secondary: #9aa0a6;
  --md-secondary-container: #3c4043;
  --md-on-secondary: #3c4043;
  --md-tertiary: #81c995;
  --md-error: #f28b82;
  --md-error-container: #601410;
  --md-surface: #202124;
  --md-surface-variant: #292a2d;
  --md-surface-2: #303134;
  --md-on-surface: #e8eaed;
  --md-on-surface-variant: #9aa0a6;
  --md-outline: #3c4043;
  --md-outline-variant: #35363a;

  /* Google Brand Colors (dark-adapted) */
  --google-blue: #8ab4f8;
  --google-red: #f28b82;
  --google-yellow: #fdd663;
  --google-green: #81c995;

  /* Elevation shadows (dark theme) */
  --elevation-1: 0 1px 2px rgba(0, 0, 0, 0.6), 0 1px 3px 1px rgba(0, 0, 0, 0.4);
  --elevation-2: 0 1px 2px rgba(0, 0, 0, 0.6), 0 2px 6px 2px rgba(0, 0, 0, 0.4);
  --elevation-3: 0 4px 8px 3px rgba(0, 0, 0, 0.4), 0 1px 3px rgba(0, 0, 0, 0.5);
  --elevation-4: 0 6px 10px 4px rgba(0, 0, 0, 0.4), 0 2px 3px rgba(0, 0, 0, 0.5);

  /* Radii */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 100px;

  /* Transitions */
  --transition: 0.2s cubic-bezier(0.2, 0, 0, 1);
  --transition-long: 0.3s cubic-bezier(0.2, 0, 0, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Roboto', 'Google Sans', system-ui, sans-serif;
  background: var(--md-surface-variant);
  color: var(--md-on-surface);
  line-height: 1.5;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ── Container ── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============================================================
   HEADER / TOP APP BAR (MD3)
   ============================================================ */
.header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: var(--md-surface);
  border-bottom: 1px solid var(--md-outline);
  height: 64px;
  display: flex;
  align-items: center;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}

.logo-icon {
  width: 32px;
  height: 32px;
  background: var(--md-primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.logo-text {
  font-family: 'Google Sans', 'Roboto', sans-serif;
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--md-on-surface);
  letter-spacing: 0;
}

/* Nav */
.nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  text-decoration: none;
  color: var(--md-on-surface-variant);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: var(--radius-full);
  transition: background var(--transition), color var(--transition);
  position: relative;
}

.nav-link:hover {
  background: rgba(26, 115, 232, 0.08);
  color: var(--md-primary);
}

.nav-link.active {
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
}

/* Hamburger */
.burger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  border-radius: 50%;
  color: var(--md-on-surface-variant);
  transition: background var(--transition);
}

.burger:hover {
  background: var(--md-surface-2);
}

.burger svg {
  display: block;
}

/* User chip */
.user-chip {
  display: none;
  align-items: center;
  gap: 8px;
  background: var(--md-surface-variant);
  border: 1px solid var(--md-outline);
  border-radius: var(--radius-full);
  padding: 4px 12px 4px 4px;
  cursor: pointer;
  transition: box-shadow var(--transition);
}

.user-chip:hover {
  box-shadow: var(--elevation-1);
}

.user-avatar-initials {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--md-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  flex-shrink: 0;
}

.user-email {
  font-size: 0.8rem;
  color: var(--md-on-surface-variant);
  max-width: 150px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.btn-signout {
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--md-on-surface-variant);
  font-family: inherit;
  font-size: 0.8rem;
  padding: 4px 8px;
  border-radius: var(--radius-full);
  transition: background var(--transition), color var(--transition);
}

.btn-signout:hover {
  background: var(--md-error-container);
  color: var(--md-error);
}

/* Mobile nav drawer */
.mobile-drawer {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 300;
}

.mobile-drawer.open {
  display: flex;
}

.drawer-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.32);
  animation: fadeIn 0.2s ease;
}

.drawer-panel {
  position: absolute;
  top: 0;
  left: 0;
  width: 280px;
  height: 100%;
  background: var(--md-surface);
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  box-shadow: var(--elevation-4);
  animation: slideInLeft 0.25s cubic-bezier(0.2, 0, 0, 1);
}

.drawer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px;
  margin-bottom: 12px;
  text-decoration: none;
}

.drawer-logo .logo-text {
  font-size: 1.1rem;
}

.drawer-nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--md-on-surface-variant);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 12px 16px;
  border-radius: var(--radius-lg);
  transition: background var(--transition), color var(--transition);
}

.drawer-nav-link:hover {
  background: var(--md-surface-2);
}

.drawer-nav-link.active {
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
}

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
  background: var(--md-surface);
  padding: 72px 0 56px;
  border-bottom: 1px solid var(--md-outline);
}

.hero-inner {
  text-align: center;
}

.hero-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  border-radius: var(--radius-full);
  padding: 6px 16px;
  font-size: 0.8rem;
  font-weight: 500;
  margin-bottom: 24px;
  animation: fadeInDown 0.4s ease both;
}

.hero-title {
  font-family: 'Google Sans', 'Roboto', sans-serif;
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 400;
  line-height: 1.2;
  color: var(--md-on-surface);
  animation: fadeInDown 0.4s 0.1s ease both;
  letter-spacing: -0.01em;
}

.hero-title strong {
  font-weight: 700;
}

.hero-title .accent {
  color: var(--md-primary);
}

.hero-sub {
  margin-top: 16px;
  font-size: 1.1rem;
  color: var(--md-on-surface-variant);
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
  animation: fadeInDown 0.4s 0.15s ease both;
}

/* Shorten Card */
.shorten-card {
  margin-top: 40px;
  background: var(--md-surface);
  border: 1px solid var(--md-outline);
  border-radius: var(--radius-xl);
  padding: 28px;
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
  box-shadow: var(--elevation-2);
  animation: fadeInDown 0.4s 0.2s ease both;
}

.form-row {
  display: flex;
  gap: 12px;
}

.url-input {
  flex: 1;
  background: var(--md-surface);
  border: 1px solid var(--md-outline);
  border-radius: var(--radius-full);
  color: var(--md-on-surface);
  font-size: 0.95rem;
  font-family: inherit;
  padding: 14px 20px;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.url-input::placeholder {
  color: var(--md-on-surface-variant);
}

.url-input:focus {
  border-color: var(--md-primary);
  box-shadow: 0 0 0 2px rgba(26, 115, 232, 0.2);
}

.btn-shorten {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--md-primary);
  border: none;
  cursor: pointer;
  color: #fff;
  font-size: 0.9rem;
  font-weight: 500;
  font-family: inherit;
  padding: 14px 24px;
  border-radius: var(--radius-full);
  transition: box-shadow var(--transition), background var(--transition);
  white-space: nowrap;
  letter-spacing: 0.01em;
}

.btn-shorten:hover {
  box-shadow: var(--elevation-2);
  background: #1557b0;
}

.btn-shorten:active {
  box-shadow: none;
}

.btn-shorten:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.alias-row {
  display: flex;
  align-items: center;
  margin-top: 14px;
  background: var(--md-surface);
  border: 1px solid var(--md-outline);
  border-radius: var(--radius-full);
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.alias-row:focus-within {
  border-color: var(--md-primary);
  box-shadow: 0 0 0 2px rgba(26, 115, 232, 0.2);
}

.alias-prefix {
  padding: 10px 16px;
  color: var(--md-on-surface-variant);
  font-size: 0.88rem;
  border-right: 1px solid var(--md-outline);
  white-space: nowrap;
  user-select: none;
}

.alias-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--md-on-surface);
  font-size: 0.88rem;
  font-family: inherit;
  padding: 10px 16px;
}

.alias-input::placeholder {
  color: var(--md-on-surface-variant);
}

/* Result box */
.result-box {
  margin-top: 18px;
  background: var(--md-primary-container);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  animation: fadeIn 0.3s ease;
}

.result-label {
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--md-on-primary-container);
  margin-bottom: 8px;
  opacity: 0.7;
}

.result-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.result-link {
  font-size: 1rem;
  font-weight: 500;
  color: var(--md-on-primary-container);
  word-break: break-all;
}

.result-link:hover {
  text-decoration: underline;
}

.result-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 10px;
}

.btn-copy {
  background: var(--md-surface);
  border: 1px solid var(--md-outline);
  color: var(--md-primary);
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  padding: 7px 16px;
  border-radius: var(--radius-full);
  transition: box-shadow var(--transition), background var(--transition);
  white-space: nowrap;
}

.btn-copy:hover {
  box-shadow: var(--elevation-1);
  background: var(--md-surface-variant);
}

.btn-qr {
  background: transparent;
  border: 1px solid var(--md-on-primary-container);
  color: var(--md-on-primary-container);
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  padding: 7px 16px;
  border-radius: var(--radius-full);
  transition: background var(--transition);
}

.btn-qr:hover {
  background: rgba(0, 0, 0, 0.06);
}

.result-meta {
  margin-top: 6px;
  font-size: 0.78rem;
  color: var(--md-on-surface-variant);
}

/* Stats row */
.stats-row {
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: 0;
  margin-top: 36px;
  background: var(--md-surface);
  border: 1px solid var(--md-outline);
  border-radius: var(--radius-xl);
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
  overflow: hidden;
  box-shadow: var(--elevation-1);
  animation: fadeInDown 0.4s 0.3s ease both;
}

.stat-item {
  flex: 1;
  text-align: center;
  padding: 20px 16px;
}

.stat-num {
  display: block;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--md-primary);
}

.stat-label {
  font-size: 0.75rem;
  color: var(--md-on-surface-variant);
  margin-top: 2px;
}

.stat-divider {
  width: 1px;
  background: var(--md-outline);
}

/* ============================================================
   HOW IT WORKS / STEPS
   ============================================================ */
.how-section {
  padding: 64px 0;
  background: var(--md-surface-variant);
}

.section-title {
  font-family: 'Google Sans', 'Roboto', sans-serif;
  font-size: 1.75rem;
  font-weight: 500;
  color: var(--md-on-surface);
  margin-bottom: 8px;
}

.section-sub {
  font-size: 1rem;
  color: var(--md-on-surface-variant);
  margin-bottom: 40px;
}

.text-center {
  text-align: center;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.step-card {
  background: var(--md-surface);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  text-align: center;
  box-shadow: var(--elevation-1);
  transition: box-shadow var(--transition);
}

.step-card:hover {
  box-shadow: var(--elevation-3);
}

.step-num {
  width: 48px;
  height: 48px;
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 700;
  margin: 0 auto 16px;
}

.step-card h3 {
  font-size: 1rem;
  font-weight: 500;
  margin-bottom: 8px;
}

.step-card p {
  font-size: 0.88rem;
  color: var(--md-on-surface-variant);
}

/* ============================================================
   RECENT LINKS
   ============================================================ */
.recent-section {
  padding: 64px 0;
  background: var(--md-surface);
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.see-all {
  color: var(--md-primary);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: var(--radius-full);
  transition: background var(--transition);
}

.see-all:hover {
  background: rgba(26, 115, 232, 0.08);
}

.links-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
}

.link-card {
  background: var(--md-surface);
  border: 1px solid var(--md-outline);
  border-radius: var(--radius-lg);
  padding: 20px;
  transition: box-shadow var(--transition);
}

.link-card:hover {
  box-shadow: var(--elevation-2);
}

.link-card-slug {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--md-primary);
  margin-bottom: 4px;
}

.link-card-url {
  font-size: 0.8rem;
  color: var(--md-on-surface-variant);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 14px;
}

.link-card-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}

.link-card-clicks {
  font-size: 0.78rem;
  color: var(--md-on-surface-variant);
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 4px;
}

/* ============================================================
   FEATURES
   ============================================================ */
.features-section {
  padding: 64px 0;
  background: var(--md-surface-variant);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
  margin-top: 40px;
}

.feature-card {
  background: var(--md-surface);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  box-shadow: var(--elevation-1);
  transition: box-shadow var(--transition);
}

.feature-card:hover {
  box-shadow: var(--elevation-3);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 16px;
}

.feature-icon-blue {
  background: #d2e3fc;
}

.feature-icon-green {
  background: #e6f4ea;
}

.feature-icon-yellow {
  background: #fef8e1;
}

.feature-icon-red {
  background: #fce8e6;
}

.feature-card h3 {
  font-size: 1rem;
  font-weight: 500;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 0.85rem;
  color: var(--md-on-surface-variant);
}

/* ============================================================
   BUTTONS (MD3)
   ============================================================ */
.btn-sm {
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  border: 1px solid var(--md-outline);
  transition: box-shadow var(--transition), background var(--transition);
  background: var(--md-surface);
  color: var(--md-on-surface);
  letter-spacing: 0.01em;
}

.btn-sm:hover {
  box-shadow: var(--elevation-1);
  background: var(--md-surface-variant);
}

.btn-sm.primary {
  background: var(--md-primary);
  color: #fff;
  border-color: transparent;
}

.btn-sm.primary:hover {
  background: #1557b0;
  box-shadow: var(--elevation-2);
}

.btn-sm.danger {
  border-color: transparent;
}

.btn-sm.danger:hover {
  background: var(--md-error-container);
  color: var(--md-error);
  border-color: transparent;
}

.btn-copy-small {
  padding: 5px 10px;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  cursor: pointer;
  border: 1px solid var(--md-outline);
  background: var(--md-surface);
  color: var(--md-on-surface-variant);
  font-family: inherit;
  transition: all var(--transition);
}

.btn-copy-small:hover {
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  border-color: transparent;
}

/* ============================================================
   EMPTY STATE
   ============================================================ */
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--md-on-surface-variant);
  grid-column: 1 / -1;
}

.empty-icon {
  font-size: 3rem;
  margin-bottom: 12px;
  opacity: 0.6;
}

.empty-state a {
  color: var(--md-primary);
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  border-top: 1px solid var(--md-outline);
  padding: 24px 0;
  text-align: center;
  background: var(--md-surface);
}

.footer-copy {
  font-size: 0.78rem;
  color: var(--md-on-surface-variant);
  margin-top: 4px;
}

/* ============================================================
   DASHBOARD
   ============================================================ */
.dashboard-layout {
  display: flex;
  min-height: calc(100vh - 64px);
}

/* Nav Rail (sidebar) */
.nav-rail {
  width: 72px;
  background: var(--md-surface);
  border-right: 1px solid var(--md-outline);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 16px 0;
  gap: 4px;
  flex-shrink: 0;
  position: sticky;
  top: 64px;
  height: calc(100vh - 64px);
  overflow-y: auto;
}

.rail-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  width: 56px;
  padding: 12px 0;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: background var(--transition);
  text-decoration: none;
  color: var(--md-on-surface-variant);
}

.rail-item:hover {
  background: var(--md-surface-2);
}

.rail-item.active {
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
}

.rail-item span {
  font-size: 0.65rem;
  font-weight: 500;
}

/* Main content */
.dashboard-main {
  flex: 1;
  padding: 24px;
  min-width: 0;
}

/* Overview Cards */
.overview-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.overview-card {
  background: var(--md-surface);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--elevation-1);
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: box-shadow var(--transition);
  border-left: 4px solid transparent;
}

.overview-card:hover {
  box-shadow: var(--elevation-3);
}

.card-purple {
  border-left-color: var(--md-primary);
}

.card-blue {
  border-left-color: #1967d2;
}

.card-green {
  border-left-color: var(--google-green);
}

.card-orange {
  border-left-color: var(--google-yellow);
}

.ov-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.ov-label {
  font-size: 0.78rem;
  color: var(--md-on-surface-variant);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.ov-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.icon-purple {
  background: var(--md-primary-container);
}

.icon-blue {
  background: #d2e3fc;
}

.icon-green {
  background: #e6f4ea;
}

.icon-orange {
  background: #fef8e1;
}

.ov-num {
  font-size: 2rem;
  font-weight: 700;
  color: var(--md-on-surface);
  line-height: 1;
}

.card-purple .ov-num {
  color: var(--md-primary);
}

.card-blue .ov-num {
  color: #1967d2;
}

.card-green .ov-num {
  color: var(--google-green);
}

.card-orange .ov-num {
  color: #e37400;
}

/* Chart Panel */
.chart-panel {
  background: var(--md-surface);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: var(--elevation-1);
}

.chart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
}

.chart-title {
  font-size: 1rem;
  font-weight: 500;
  color: var(--md-on-surface);
}

/* Period tabs */
.period-tabs {
  display: flex;
  gap: 4px;
  background: var(--md-surface-variant);
  border-radius: var(--radius-full);
  padding: 4px;
}

.period-tab {
  background: transparent;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 500;
  padding: 5px 14px;
  border-radius: var(--radius-full);
  color: var(--md-on-surface-variant);
  transition: background var(--transition), color var(--transition);
}

.period-tab.active {
  background: var(--md-surface);
  color: var(--md-primary);
  box-shadow: var(--elevation-1);
}

.period-tab:hover:not(.active) {
  background: rgba(0, 0, 0, 0.04);
}

/* Links Panel */
.links-panel {
  background: var(--md-surface);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--elevation-1);
  margin-bottom: 24px;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
}

.panel-title {
  font-size: 1rem;
  font-weight: 500;
  color: var(--md-on-surface);
}

.panel-actions {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

.search-input {
  background: var(--md-surface-variant);
  border: 1px solid var(--md-outline);
  border-radius: var(--radius-full);
  color: var(--md-on-surface);
  font-family: inherit;
  font-size: 0.88rem;
  padding: 8px 18px;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 220px;
}

.search-input::placeholder {
  color: var(--md-on-surface-variant);
}

.search-input:focus {
  border-color: var(--md-primary);
  box-shadow: 0 0 0 2px rgba(26, 115, 232, 0.2);
  background: var(--md-surface);
}

.btn-new {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--md-primary);
  color: #fff;
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 500;
  font-family: inherit;
  padding: 9px 20px;
  border-radius: var(--radius-full);
  transition: box-shadow var(--transition), background var(--transition);
}

.btn-new:hover {
  background: #1557b0;
  box-shadow: var(--elevation-2);
}

/* Table */
.links-table-wrap {
  overflow-x: auto;
}

.dash-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.dash-table thead th {
  text-align: left;
  padding: 12px 16px;
  font-size: 0.78rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--md-on-surface-variant);
  border-bottom: 2px solid var(--md-outline);
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
  transition: color var(--transition);
}

.dash-table thead th:hover {
  color: var(--md-primary);
}

.dash-table thead th.sorted {
  color: var(--md-primary);
}

.dash-table tbody tr {
  border-bottom: 1px solid var(--md-outline-variant);
  transition: background var(--transition);
}

.dash-table tbody tr:hover {
  background: var(--md-surface-variant);
}

.dash-table tbody tr:last-child {
  border-bottom: none;
}

.dash-table td {
  padding: 14px 16px;
  vertical-align: middle;
}

.slug-cell a {
  color: var(--md-primary);
  text-decoration: none;
  font-weight: 500;
}

.slug-cell a:hover {
  text-decoration: underline;
}

.url-cell {
  max-width: 280px;
}

.url-cell a {
  color: var(--md-on-surface-variant);
  text-decoration: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: block;
}

.url-cell a:hover {
  color: var(--md-primary);
}

.clicks-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  border-radius: var(--radius-full);
  padding: 3px 10px;
  font-size: 0.78rem;
  font-weight: 500;
}

.table-actions {
  display: flex;
  gap: 6px;
  align-items: center;
}

/* Pagination */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 20px;
  flex-wrap: wrap;
}

.page-btn {
  min-width: 36px;
  height: 36px;
  border: 1px solid var(--md-outline);
  border-radius: var(--radius-sm);
  background: var(--md-surface);
  color: var(--md-on-surface);
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 10px;
  transition: background var(--transition), color var(--transition);
}

.page-btn:hover {
  background: var(--md-surface-variant);
}

.page-btn.active {
  background: var(--md-primary);
  color: #fff;
  border-color: transparent;
}

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

/* Sort indicator */
.sort-arrow {
  margin-left: 4px;
  opacity: 0;
  transition: opacity var(--transition);
}

.dash-table th:hover .sort-arrow {
  opacity: 0.5;
}

.dash-table th.sorted .sort-arrow {
  opacity: 1;
}

/* ============================================================
   MODALS (MD3)
   ============================================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.32);
  z-index: 400;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  animation: fadeIn 0.2s ease;
}

.modal-overlay.open {
  display: flex;
}

.modal {
  background: var(--md-surface);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 480px;
  box-shadow: var(--elevation-4);
  animation: modalIn 0.25s cubic-bezier(0.2, 0, 0, 1);
  overflow: hidden;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
}

.modal-wide {
  max-width: 780px;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px 16px;
  border-bottom: 1px solid var(--md-outline);
  flex-shrink: 0;
}

.modal-title {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--md-on-surface);
}

.modal-close {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--md-on-surface-variant);
  font-size: 1.2rem;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}

.modal-close:hover {
  background: var(--md-surface-2);
}

.modal-body {
  padding: 24px;
  overflow-y: auto;
  flex: 1;
}

.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--md-outline);
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  flex-shrink: 0;
}

.btn-cancel {
  background: transparent;
  border: 1px solid var(--md-outline);
  color: var(--md-on-surface);
  font-family: inherit;
  font-size: 0.88rem;
  font-weight: 500;
  padding: 9px 20px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background var(--transition);
}

.btn-cancel:hover {
  background: var(--md-surface-variant);
}

.btn-save {
  background: var(--md-primary);
  border: none;
  color: #fff;
  font-family: inherit;
  font-size: 0.88rem;
  font-weight: 500;
  padding: 9px 20px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: box-shadow var(--transition), background var(--transition);
}

.btn-save:hover {
  background: #1557b0;
  box-shadow: var(--elevation-2);
}

.form-label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--md-on-surface-variant);
  margin-bottom: 6px;
  display: block;
}

.modal-input {
  width: 100%;
  background: var(--md-surface);
  border: 1px solid var(--md-outline);
  border-radius: var(--radius-md);
  color: var(--md-on-surface);
  font-family: inherit;
  font-size: 0.95rem;
  padding: 12px 16px;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.modal-input:focus {
  border-color: var(--md-primary);
  box-shadow: 0 0 0 2px rgba(26, 115, 232, 0.2);
}

.modal-note {
  margin-top: 10px;
  font-size: 0.8rem;
  color: var(--md-error);
}

/* Stats modal specifics */
.stats-info-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.stats-info-item {
  background: var(--md-surface-variant);
  border-radius: var(--radius-md);
  padding: 14px 20px;
  text-align: center;
  flex: 1;
  min-width: 90px;
}

.stats-info-num {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--md-primary);
}

.stats-info-label {
  font-size: 0.72rem;
  color: var(--md-on-surface-variant);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: 2px;
}

.stats-chart-wrap {
  margin-bottom: 20px;
}

.stats-subtitle {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--md-on-surface-variant);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.breakdown-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 20px;
}

.breakdown-card {
  background: var(--md-surface-variant);
  border-radius: var(--radius-md);
  padding: 16px;
}

.breakdown-title {
  font-size: 0.82rem;
  font-weight: 500;
  margin-bottom: 12px;
  color: var(--md-on-surface-variant);
}

.breakdown-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.breakdown-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
}

.breakdown-row-label {
  color: var(--md-on-surface);
}

.breakdown-row-count {
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  border-radius: var(--radius-full);
  padding: 2px 8px;
  font-size: 0.75rem;
  font-weight: 500;
}

.referrers-wrap {
  margin-bottom: 20px;
}

.referrer-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.referrer-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--md-surface-variant);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 0.82rem;
}

.referrer-item-url {
  color: var(--md-on-surface);
  word-break: break-all;
}

.referrer-item-cnt {
  color: var(--md-on-surface-variant);
  white-space: nowrap;
  margin-left: 12px;
}

.clicks-log-wrap {}

.clicks-log {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--md-outline);
}

.click-row {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr 2fr;
  gap: 8px;
  padding: 10px 14px;
  font-size: 0.78rem;
  border-bottom: 1px solid var(--md-outline-variant);
  color: var(--md-on-surface);
}

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

.click-row-header {
  background: var(--md-surface-variant);
  font-size: 0.72rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--md-on-surface-variant);
}

/* QR modal */
.qr-modal-body {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  padding: 32px 24px;
}

.qr-url-label {
  font-size: 0.88rem;
  color: var(--md-primary);
  font-weight: 500;
  word-break: break-all;
  text-align: center;
}

#qrCanvas {
  border-radius: var(--radius-md);
  box-shadow: var(--elevation-2);
}

.btn-download-qr {
  background: var(--md-primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-full);
  font-family: inherit;
  font-size: 0.88rem;
  font-weight: 500;
  padding: 10px 24px;
  cursor: pointer;
  transition: box-shadow var(--transition), background var(--transition);
}

.btn-download-qr:hover {
  background: #1557b0;
  box-shadow: var(--elevation-2);
}

/* ============================================================
   TOAST
   ============================================================ */
#toast-container {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 9999;
  pointer-events: none;
  width: max-content;
  max-width: calc(100vw - 48px);
}

.toast {
  background: #3c4043;
  color: #fff;
  padding: 12px 20px;
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  font-weight: 500;
  pointer-events: auto;
  animation: toastIn 0.3s cubic-bezier(0.2, 0, 0, 1);
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: var(--elevation-3);
}

.toast.success {
  background: #1e8e3e;
}

.toast.error {
  background: #d93025;
}

.toast.info {
  background: #1a73e8;
}

/* ============================================================
   ANIMATIONS
   ============================================================ */
@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-12px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInLeft {
  from {
    transform: translateX(-100%);
  }

  to {
    transform: translateX(0);
  }
}

@keyframes modalIn {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(8px);
  }

  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

@keyframes toastIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1100px) {
  .overview-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 900px) {
  .nav-rail {
    display: none;
  }

  .nav {
    display: none;
  }

  .burger {
    display: flex;
    align-items: center;
    justify-content: center;
  }

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

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

  .click-row {
    grid-template-columns: 1.2fr 1fr 1fr;
  }

  .click-row span:nth-child(4),
  .click-row span:nth-child(5) {
    display: none;
  }
}

@media (max-width: 640px) {
  .container {
    padding: 0 16px;
  }

  .header {
    height: 56px;
  }

  .hero {
    padding: 48px 0 36px;
  }

  .hero-title {
    font-size: 1.9rem;
  }

  .hero-sub {
    font-size: 0.95rem;
  }

  .shorten-card {
    padding: 20px 16px;
    border-radius: var(--radius-lg);
  }

  .form-row {
    flex-direction: column;
  }

  .btn-shorten {
    justify-content: center;
  }

  .overview-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .ov-num {
    font-size: 1.5rem;
  }

  .dashboard-main {
    padding: 16px;
  }

  .stats-row {
    flex-wrap: wrap;
    max-width: 100%;
  }

  .stat-item {
    min-width: 33%;
  }

  .stat-divider {
    display: none;
  }

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

  .search-input {
    width: 100%;
  }

  .panel-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .panel-actions {
    width: 100%;
  }

  .modal {
    border-radius: var(--radius-lg);
  }

  .modal-wide {
    max-width: 100%;
  }

  .period-tabs {
    flex-wrap: wrap;
  }

  .period-tab {
    font-size: 0.75rem;
    padding: 4px 10px;
  }

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

  .chart-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .stats-row {
    margin-top: 24px;
  }

  .dash-table thead {
    display: none;
  }

  .dash-table tbody tr {
    display: flex;
    flex-direction: column;
    padding: 12px 16px;
    gap: 6px;
    border-bottom: 1px solid var(--md-outline-variant);
    border-radius: 0;
  }

  .dash-table td {
    padding: 0;
  }

  .url-cell {
    max-width: 100%;
  }

  .table-actions {
    justify-content: flex-start;
  }

  .login-split {
    flex-direction: column;
  }

  .login-brand-panel {
    padding: 24px;
  }
}

@media (max-width: 400px) {
  .overview-grid {
    grid-template-columns: 1fr;
  }

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