@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
  --primary: #3b82f6;
  --secondary: #60a5fa;
  --background: #ffffff;
  --surface: #f3f4f6;
  --text-primary: #111827;
  --text-secondary: #6b7280;
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --shadow-soft: 0 12px 30px rgba(17, 24, 39, 0.07);
  --shadow-hover: 0 18px 38px rgba(17, 24, 39, 0.11);
  --transition: 0.25s ease;
  --max-width: 1140px;
}

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

html,
body {
  min-height: 100%;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', sans-serif;
  font-size: 16px;
  line-height: 1.5;
  color: var(--text-primary);
  background: radial-gradient(circle at 8% 0%, #f5f9ff 0%, #ffffff 32%),
    radial-gradient(circle at 92% 8%, #eef5ff 0%, #ffffff 34%),
    var(--background);
}

body[data-page='landing'] {
  background: linear-gradient(180deg, #eff6ff 0%, #ffffff 28%, #f5f9ff 58%, #eaf2ff 100%);
}

body[data-page='landing'] main {
  background:
    radial-gradient(95% 65% at 8% 32%, rgba(219, 234, 254, 0.45) 0%, rgba(255, 255, 255, 0) 68%),
    radial-gradient(90% 70% at 92% 72%, rgba(96, 165, 250, 0.14) 0%, rgba(255, 255, 255, 0) 72%);
}

a {
  color: inherit;
  text-decoration: none;
}

img,
svg {
  display: block;
  max-width: 100%;
}

.page {
  min-height: 100vh;
  padding: 20px;
}

.app-shell {
  max-width: var(--max-width);
  margin: 0 auto;
  animation: fade-up 0.55s ease;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(6px);
  border-radius: var(--radius-lg);
  padding: 14px 18px;
  box-shadow: var(--shadow-soft);
  margin-bottom: 26px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.brand-logo {
  height: 44px;
  width: auto;
}

.brand-logo-lg {
  height: 52px;
  width: auto;
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(140deg, var(--primary), var(--secondary));
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 18px;
  box-shadow: 0 8px 18px rgba(59, 130, 246, 0.35);
}

.topbar-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-link {
  color: var(--text-secondary);
  font-weight: 500;
  border-radius: 10px;
  padding: 8px 12px;
  transition: var(--transition);
}

.nav-link:hover,
.nav-link.is-active {
  color: var(--text-primary);
  background: var(--surface);
}

.content-card,
.card {
  background: rgba(255, 255, 255, 0.92);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}

.content-card {
  padding: 22px;
}

.card {
  padding: 18px;
  transition: transform var(--transition), box-shadow var(--transition);
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.page-title {
  font-size: clamp(1.5rem, 2.3vw, 2rem);
  line-height: 1.2;
  letter-spacing: -0.015em;
  font-weight: 700;
}

.page-subtitle {
  color: var(--text-secondary);
  margin-top: 8px;
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 999px;
  padding: 7px 12px;
  font-size: 0.86rem;
  font-weight: 600;
}

.badge-soft {
  background: #e9f2ff;
  color: var(--primary);
}

.badge-success {
  background: rgba(16, 185, 129, 0.13);
  color: var(--success);
}

.badge-warning {
  background: rgba(245, 158, 11, 0.16);
  color: #9b6200;
}

.badge-danger {
  background: rgba(239, 68, 68, 0.15);
  color: #b91c1c;
}

.btn {
  border: none;
  border-radius: 11px;
  padding: 11px 15px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition),
    background var(--transition), color var(--transition), opacity var(--transition);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  color: #fff;
  background: linear-gradient(130deg, var(--primary), var(--secondary));
  box-shadow: 0 10px 20px rgba(59, 130, 246, 0.35);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 26px rgba(59, 130, 246, 0.4);
}

.btn-soft {
  color: var(--primary);
  background: #e9f2ff;
}

.btn-soft:hover {
  background: #dbeaff;
}

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

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

.input,
.textarea,
.file-input {
  width: 100%;
  border: 1px solid transparent;
  border-radius: 12px;
  padding: 11px 13px;
  background: var(--surface);
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--text-primary);
  transition: border-color var(--transition), background var(--transition),
    box-shadow var(--transition);
}

.input:focus,
.textarea:focus,
.file-input:focus {
  outline: none;
  border-color: rgba(59, 130, 246, 0.45);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.12);
  background: #fff;
}

.textarea {
  min-height: 120px;
  resize: vertical;
}

.stack {
  display: grid;
  gap: 10px;
}

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

.section {
  margin-top: 24px;
}

.section-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 14px;
}

.section-title {
  font-size: 1.17rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.section-caption {
  color: var(--text-secondary);
  margin-top: 3px;
}

.grid {
  display: grid;
  gap: 14px;
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.empty-state {
  text-align: center;
  color: var(--text-secondary);
  padding: 26px 14px;
  background: var(--surface);
  border-radius: var(--radius-md);
}

.muted {
  color: var(--text-secondary);
}

.auth-layout {
  min-height: calc(100vh - 40px);
  display: grid;
  gap: 24px;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: stretch;
}

.auth-hero {
  padding: clamp(24px, 5vw, 42px);
  border-radius: 24px;
  background: linear-gradient(160deg, #f7fbff 0%, #ffffff 100%);
  box-shadow: var(--shadow-soft);
  display: grid;
  align-content: center;
  gap: 18px;
}

.auth-kicker {
  display: inline-flex;
  width: fit-content;
  padding: 7px 12px;
  border-radius: 999px;
  background: #e9f2ff;
  color: var(--primary);
  font-size: 0.84rem;
  font-weight: 600;
}

.auth-title {
  font-size: clamp(2rem, 4.2vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.07;
}

.auth-points {
  display: grid;
  gap: 12px;
}

.auth-point {
  background: #fff;
  padding: 12px 14px;
  border-radius: 12px;
  box-shadow: inset 0 0 0 1px rgba(17, 24, 39, 0.06);
  color: var(--text-secondary);
}

.auth-card {
  background: #fff;
  border-radius: 24px;
  box-shadow: var(--shadow-soft);
  padding: clamp(20px, 4vw, 34px);
  display: grid;
  align-content: center;
  gap: 14px;
}

.auth-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  background: var(--surface);
  border-radius: 12px;
  padding: 6px;
}

.auth-tab {
  border: none;
  background: transparent;
  color: var(--text-secondary);
  border-radius: 9px;
  padding: 10px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.auth-tab.is-active {
  background: #fff;
  color: var(--text-primary);
  box-shadow: 0 4px 10px rgba(17, 24, 39, 0.09);
}

.auth-form {
  display: grid;
  gap: 12px;
}

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

.auth-note {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.auth-divider {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: rgba(107, 114, 128, 0.25);
}

.auth-social-grid {
  display: grid;
  gap: 10px;
}

.btn-social {
  min-height: 47px;
  background: #ffffff;
  color: var(--text-primary);
  border: 1px solid rgba(17, 24, 39, 0.15);
  box-shadow: 0 6px 14px rgba(17, 24, 39, 0.06);
  justify-content: flex-start;
  padding: 11px 14px;
  gap: 12px;
  letter-spacing: -0.01em;
}

.btn-social:hover {
  transform: translateY(-1px);
}

.btn-social:focus-visible {
  outline: none;
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.16);
}

.btn-social-google {
  background: #ffffff;
  color: #111827;
}

.btn-social-google:hover {
  background: #f9fafb;
  border-color: rgba(66, 133, 244, 0.45);
  box-shadow: 0 10px 18px rgba(17, 24, 39, 0.1);
}

.btn-social-github {
  background: #111827;
  color: #ffffff;
  border-color: #111827;
  box-shadow: 0 10px 18px rgba(17, 24, 39, 0.24);
}

.btn-social-github:hover {
  background: #0b1220;
  border-color: #0b1220;
  box-shadow: 0 14px 24px rgba(17, 24, 39, 0.28);
}

.social-icon-wrap {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  display: inline-grid;
  place-items: center;
}

.social-svg {
  width: 22px;
  height: 22px;
  display: block;
}

.social-svg-github {
  color: #ffffff;
}

.auth-feedback {
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 0.9rem;
  font-weight: 500;
}

.auth-feedback.warning {
  background: rgba(245, 158, 11, 0.14);
  color: #92400e;
}

.auth-feedback.success {
  background: rgba(16, 185, 129, 0.12);
  color: #0f7660;
}

.main-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: 2fr 1fr;
}

.class-card-title {
  font-size: 1.03rem;
  font-weight: 700;
}

.class-card-desc {
  color: var(--text-secondary);
  margin-top: 6px;
}

.class-meta {
  color: var(--text-secondary);
  margin-top: 12px;
  font-size: 0.88rem;
}

.assignment-item,
.material-item,
.discussion-item {
  background: #fff;
  border-radius: var(--radius-md);
  padding: 14px;
  box-shadow: inset 0 0 0 1px rgba(17, 24, 39, 0.05);
}

.assignment-item {
  display: grid;
  gap: 10px;
}

.assignment-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
}

.assignment-title {
  font-weight: 600;
  letter-spacing: -0.01em;
}

.assignment-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.countdown {
  font-size: 0.88rem;
  font-weight: 600;
}

.countdown.pending {
  color: #9a6508;
}

.countdown.submitted {
  color: #0a8a64;
}

.countdown.late {
  color: #c81e1e;
}

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0 14px;
}

.tab-btn {
  border: none;
  border-radius: 10px;
  padding: 9px 12px;
  color: var(--text-secondary);
  background: var(--surface);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.tab-btn.is-active {
  background: #eaf2ff;
  color: var(--primary);
}

.tab-panel {
  display: none;
}

.tab-panel.is-active {
  display: block;
  animation: fade-up 0.32s ease;
}

.breadcrumb {
  font-size: 0.9rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}

.breadcrumb a {
  color: var(--primary);
  font-weight: 500;
}

.detail-layout {
  display: grid;
  gap: 16px;
  grid-template-columns: 1.65fr 1fr;
}

.detail-card {
  padding: 22px;
}

.message-list {
  display: grid;
  gap: 10px;
}

.discussion-item {
  display: grid;
  gap: 8px;
}

.discussion-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: #dbeafe;
  color: #1d4ed8;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 0.82rem;
}

.user-meta {
  display: flex;
  align-items: center;
  gap: 10px;
}

.message-author {
  font-weight: 600;
}

.message-time {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.message-content {
  color: #223046;
}

.vote-btn {
  border: none;
  background: #eff6ff;
  color: #1d4ed8;
  border-radius: 999px;
  padding: 7px 12px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.vote-btn:hover {
  background: #dbeafe;
}

.toast {
  padding: 10px 12px;
  border-radius: 10px;
  font-size: 0.9rem;
  margin-top: 8px;
}

.toast.success {
  background: rgba(16, 185, 129, 0.12);
  color: #0f7660;
}

.toast.warning {
  background: rgba(245, 158, 11, 0.14);
  color: #92400e;
}

.footer-note {
  color: var(--text-secondary);
  text-align: center;
  margin-top: 22px;
  font-size: 0.88rem;
}

.section-anchor {
  scroll-margin-top: 110px;
}

.landing-nav-wrap {
  position: sticky;
  top: 0;
  z-index: 80;
  padding: 14px 20px 0;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0));
  backdrop-filter: blur(7px);
}

.landing-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 14px;
  border-radius: 16px;
  border: 1px solid rgba(17, 24, 39, 0.08);
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 12px 26px rgba(17, 24, 39, 0.08);
}

.landing-nav .brand-logo {
  height: 40px;
}

.landing-nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}

.landing-nav-links a {
  color: var(--text-secondary);
  font-weight: 500;
  border-radius: 10px;
  padding: 8px 12px;
  transition: var(--transition);
}

.landing-nav-links a:hover {
  color: var(--text-primary);
  background: var(--surface);
}

.landing-nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.landing-hero {
  padding: 46px 20px 26px;
}

.hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #EFF6FF 0%, #FFFFFF 40%, #DBEAFE 100%);
}

.hero::before {
  content: "";
  position: absolute;
  width: 500px;
  height: 500px;
  background: #3B82F6;
  opacity: 0.15;
  filter: blur(120px);
  top: -150px;
  right: -150px;
  z-index: 0;
  animation: floatSlow 10s ease-in-out infinite alternate;
}

.hero::after {
  content: "";
  position: absolute;
  width: 400px;
  height: 400px;
  background: #60A5FA;
  opacity: 0.12;
  filter: blur(100px);
  bottom: -120px;
  left: -120px;
  z-index: 0;
  animation: floatSlow 12s ease-in-out infinite alternate;
}

.landing-hero-grid {
  display: grid;
  gap: 22px;
  grid-template-columns: 1.02fr 0.98fr;
  align-items: center;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.landing-hero-copy,
.hero-mockup {
  position: relative;
  z-index: 2;
}

.landing-hero-copy h1 {
  margin-top: 12px;
  font-size: clamp(2.1rem, 5vw, 3.8rem);
  line-height: 1.05;
  letter-spacing: -0.025em;
}

.landing-hero-copy p {
  color: var(--text-secondary);
  margin-top: 14px;
  max-width: 56ch;
  font-size: 1.02rem;
}

.landing-cta-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 20px;
}

.hero-mockup {
  background: #fff;
  border-radius: 22px;
  padding: 18px;
  border: 1px solid rgba(17, 24, 39, 0.08);
  box-shadow: 0 28px 48px rgba(17, 24, 39, 0.12);
}

.hero-mockup-top {
  display: flex;
  align-items: center;
  gap: 8px;
}

.hero-pill {
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 0.8rem;
  font-weight: 600;
  background: #e9f2ff;
  color: var(--primary);
}

.hero-mockup-grid {
  margin-top: 14px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.hero-panel {
  background: var(--surface);
  border-radius: 13px;
  padding: 12px;
}

.hero-panel h3 {
  font-size: 0.92rem;
  letter-spacing: -0.01em;
}

.hero-panel p {
  margin-top: 5px;
  font-size: 0.9rem;
}

.hero-panel-wide {
  grid-column: 1 / -1;
}

.landing-section {
  padding: 62px 20px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.55), rgba(239, 246, 255, 0.66));
}

.value-strip {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.48), rgba(219, 234, 254, 0.66));
}

.final-cta {
  background: linear-gradient(180deg, rgba(239, 246, 255, 0.48), rgba(219, 234, 254, 0.66));
}

.landing-section-head {
  max-width: 680px;
  margin: 0 auto;
  text-align: center;
}

.landing-section-head h2 {
  font-size: clamp(1.55rem, 2.8vw, 2.3rem);
  letter-spacing: -0.02em;
  line-height: 1.13;
}

.landing-section-head p {
  margin-top: 10px;
  color: var(--text-secondary);
}

.feature-grid {
  margin-top: 24px;
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.feature-card {
  background: #fff;
  border-radius: 16px;
  border: 1px solid rgba(17, 24, 39, 0.07);
  padding: 18px;
  box-shadow: 0 12px 24px rgba(17, 24, 39, 0.07);
  transition: transform var(--transition), box-shadow var(--transition);
}

.feature-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 32px rgba(17, 24, 39, 0.12);
}

.feature-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  display: grid;
  place-items: center;
}

.feature-icon svg {
  width: 21px;
  height: 21px;
}

.feature-card h3 {
  margin-top: 12px;
  font-size: 1rem;
  letter-spacing: -0.01em;
}

.feature-card p {
  margin-top: 8px;
  color: var(--text-secondary);
  font-size: 0.93rem;
}

.preview-grid {
  margin-top: 24px;
  display: grid;
  gap: 14px;
  grid-template-columns: 1.2fr 1fr;
}

.preview-card {
  background: #fff;
  border-radius: 16px;
  border: 1px solid rgba(17, 24, 39, 0.08);
  padding: 16px;
  box-shadow: 0 16px 30px rgba(17, 24, 39, 0.09);
}

.preview-card-main {
  grid-row: span 2;
}

.preview-head {
  display: flex;
  align-items: center;
  gap: 6px;
}

.preview-head-title {
  margin-left: 6px;
  font-size: 0.86rem;
  font-weight: 600;
  color: #475569;
}

.preview-dot {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: #d1d5db;
}

.preview-content {
  margin-top: 14px;
  display: grid;
  gap: 10px;
}

.preview-widget {
  background: linear-gradient(140deg, #f8fbff, #eef5ff);
  border: 1px solid rgba(59, 130, 246, 0.18);
  border-radius: 12px;
  padding: 10px;
}

.preview-widget h4 {
  font-size: 0.84rem;
  letter-spacing: -0.01em;
}

.preview-widget p {
  margin-top: 4px;
  font-size: 0.82rem;
  color: #475569;
}

.preview-widget-large {
  padding: 12px;
}

.preview-widget-medium {
  display: grid;
  gap: 8px;
}

.preview-kpi-row {
  margin-top: 9px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.preview-kpi {
  background: #fff;
  border-radius: 10px;
  padding: 8px;
  box-shadow: inset 0 0 0 1px rgba(59, 130, 246, 0.12);
}

.preview-kpi strong {
  display: block;
  font-size: 1rem;
  letter-spacing: -0.02em;
}

.preview-kpi span {
  color: #64748b;
  font-size: 0.74rem;
}

.preview-tag {
  display: inline-flex;
  margin-top: 8px;
  border-radius: 999px;
  background: #dbeafe;
  color: #1d4ed8;
  padding: 4px 8px;
  font-size: 0.73rem;
  font-weight: 600;
}

.preview-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.preview-stack {
  margin-top: 14px;
  display: grid;
  gap: 8px;
}

.preview-line {
  min-height: 38px;
  border-radius: 10px;
  background: #e6edf8;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 10px;
  color: #334155;
  font-size: 0.78rem;
  font-weight: 500;
}

.preview-line.short {
  width: 92%;
}

.preview-line span:last-child {
  color: #2563eb;
  font-weight: 600;
}

.value-strip {
  padding-top: 52px;
  padding-bottom: 52px;
}

.value-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.value-card {
  background: linear-gradient(150deg, #eff6ff, #ffffff);
  border-radius: 16px;
  border: 1px solid rgba(59, 130, 246, 0.2);
  padding: 18px;
}

.value-card h3 {
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

.value-card p {
  margin-top: 8px;
  color: var(--text-secondary);
}

.final-cta {
  padding-top: 26px;
  padding-bottom: 64px;
}

.final-cta-inner {
  background: #0f172a;
  border-radius: 20px;
  padding: clamp(24px, 5vw, 38px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  box-shadow: 0 24px 40px rgba(15, 23, 42, 0.28);
}

.final-cta-inner h2 {
  color: #fff;
  font-size: clamp(1.35rem, 2.6vw, 2.1rem);
  letter-spacing: -0.02em;
  max-width: 26ch;
}

.landing-footer {
  border-top: 1px solid rgba(17, 24, 39, 0.08);
  background: linear-gradient(180deg, rgba(239, 246, 255, 0.82), rgba(219, 234, 254, 0.74));
}

.landing-footer-inner {
  padding: 18px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.landing-support {
  font-weight: 500;
}

.landing-support a {
  color: var(--primary);
}

.landing-support a:hover {
  color: #2563eb;
}

@keyframes floatSlow {
  from {
    transform: translateY(0px) translateX(0px);
  }

  to {
    transform: translateY(40px) translateX(20px);
  }
}

@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(7px);
  }

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

@media (max-width: 1024px) {
  .main-grid,
  .detail-layout {
    grid-template-columns: 1fr;
  }

  .auth-layout {
    grid-template-columns: 1fr;
  }

  .auth-hero {
    min-height: 240px;
  }

  .grid-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .landing-nav-wrap {
    padding: 12px 14px 0;
  }

  .hero::before {
    width: 420px;
    height: 420px;
    filter: blur(105px);
    right: -130px;
    top: -140px;
  }

  .hero::after {
    width: 340px;
    height: 340px;
    filter: blur(90px);
    left: -120px;
    bottom: -120px;
  }

  .landing-hero-grid,
  .preview-grid {
    grid-template-columns: 1fr;
  }

  .preview-card-main {
    grid-row: auto;
  }

  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 760px) {
  .page {
    padding: 14px;
  }

  .topbar {
    flex-wrap: wrap;
  }

  .topbar-nav {
    width: 100%;
    order: 3;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .main-grid,
  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }

  .section-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .row {
    flex-wrap: wrap;
  }

  .brand-logo {
    height: 36px;
  }

  .brand-logo-lg {
    height: 42px;
  }

  .landing-nav {
    flex-wrap: wrap;
  }

  .landing-nav-links,
  .landing-nav-actions {
    width: 100%;
    justify-content: center;
  }

  .landing-hero,
  .landing-section {
    padding-left: 14px;
    padding-right: 14px;
  }

  .landing-hero {
    padding-top: 38px;
  }

  .hero::before {
    width: 300px;
    height: 300px;
    right: -100px;
    top: -100px;
    filter: blur(78px);
  }

  .hero::after {
    width: 250px;
    height: 250px;
    left: -90px;
    bottom: -90px;
    filter: blur(68px);
  }

  .landing-cta-row {
    flex-wrap: wrap;
  }

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

  .final-cta-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .landing-footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero::before,
  .hero::after {
    animation: none;
  }
}