/* Learning Plan Assistant - Teal/Cream Theme with Animations & Parallax */

:root {
  --teal: #0F766E;
  --teal-dark: #0B5F58;
  --teal-light: #14B8A6;
  --white: #FFFFFF;
  --cream: #FFF8F0;
  --cream-soft: #F5E6D3;
  --grey-light: #9B9B9B;
  --grey-medium: #6B6B6B;
  --grey-dark: #2C2C2C;
  --ink: #1E2A28;
  --ink-soft: #6B6B6B;
  --muted: #9B9B9B;
  --border: #E7D5C2;
  --surface: var(--cream);
  --bg-alt: var(--cream-soft);
  --accent: var(--teal);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --transition-smooth: cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.2);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--teal);
  color: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* App topbar uses the home nav styles but should NOT behave like the full-height home hero */
.app-topbar {
  position: relative;
  z-index: 10;
}

.app-body .site-nav {
  padding: 18px 32px;
}

.app-body .page {
  padding-top: 0;
}

.app-body .page-band {
  padding-top: 28px;
}

/* Home Page Styles */
.site-body {
  background: var(--teal);
  min-height: 100vh;
  position: relative;
}

.site-shell {
  background: var(--teal);
  min-height: 100vh;
  padding: 0;
  position: relative;
  overflow: hidden;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 32px;
  position: relative;
  z-index: 10;
  animation: fadeInDown 0.6s var(--transition-smooth);
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.site-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.site-logo-icon {
  width: 40px;
  height: 40px;
  border: 2px solid var(--white);
  border-radius: 50%;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.site-logo-icon::before,
.site-logo-icon::after {
  content: '';
  position: absolute;
  width: 12px;
  height: 12px;
  border: 2px solid var(--white);
  border-radius: 50%;
}

.site-logo-icon::before {
  top: 8px;
  left: 8px;
}

.site-logo-icon::after {
  bottom: 8px;
  right: 8px;
}

.site-logo-main {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--white);
}

.site-nav-links {
  display: flex;
  gap: 24px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-weight: 500;
}

.site-nav-links a {
  text-decoration: none;
  color: var(--white);
  padding: 8px 0;
  position: relative;
  transition: opacity 0.3s var(--transition-smooth);
}

.site-nav-links a:hover {
  opacity: 0.8;
}

.site-nav-links a.is-active {
  opacity: 1;
}

.site-nav-links a.is-active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--white);
}

/* Home Page Layout */
.site-hero {
  display: grid;
  grid-template-columns: 280px 1fr;
  min-height: calc(100vh - 80px);
  position: relative;
}

.site-sidebar {
  padding: 40px 32px;
  border-right: 1px solid rgba(255, 255, 255, 0.2);
  position: relative;
  z-index: 5;
  animation: slideInLeft 0.8s var(--transition-smooth);
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.site-sidebar-nav {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.site-sidebar-nav li {
  margin: 0;
}

.site-sidebar-nav a {
  display: block;
  padding: 12px 0;
  color: var(--white);
  text-decoration: none;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-weight: 500;
  transition: opacity 0.3s var(--transition-smooth), transform 0.3s var(--transition-smooth);
  position: relative;
}

.site-sidebar-nav a:hover {
  opacity: 0.8;
  transform: translateX(4px);
}

.site-sidebar-nav a.is-active {
  opacity: 1;
}

.site-sidebar-nav a.is-active::before {
  content: '';
  position: absolute;
  left: -32px;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 20px;
  background: var(--white);
}

.site-hero-content {
  padding: 80px 60px;
  position: relative;
  z-index: 5;
  animation: fadeInUp 0.8s var(--transition-smooth) 0.2s backwards;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.site-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  line-height: 1.1;
  margin: 0 0 24px;
  font-family: "Georgia", "Times New Roman", serif;
  color: var(--white);
  font-weight: 400;
  max-width: 800px;
}

.site-lede {
  font-size: 16px;
  color: var(--white);
  margin: 0 0 32px;
  max-width: 600px;
  line-height: 1.7;
  opacity: 0.95;
}

.site-cta-row {
  display: flex;
  gap: 16px;
  margin-top: 40px;
}

.site-cta-primary {
  padding: 14px 32px;
  background: var(--white);
  color: var(--teal);
  text-decoration: none;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: transform 0.3s var(--transition-smooth), box-shadow 0.3s var(--transition-smooth);
  display: inline-block;
}

.site-cta-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* White Content Box */
.site-info {
  background: var(--white);
  padding: 80px 60px;
  margin: 0;
  position: relative;
  z-index: 5;
}

.site-info-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.site-info-inner h2 {
  margin: 0 0 24px;
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-family: "Georgia", "Times New Roman", serif;
  color: var(--grey-dark);
  font-weight: 400;
  line-height: 1.2;
}

.site-info-inner ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.site-info-inner li {
  font-size: 14px;
  line-height: 1.7;
  color: var(--grey-medium);
}

.site-info-inner strong {
  color: var(--grey-dark);
  font-weight: 600;
  display: block;
  margin-bottom: 4px;
}

/* App Page Styles */
.page {
  min-height: 100vh;
  background: var(--teal);
  padding-bottom: 80px;
  position: relative;
}

.page-band {
  padding: 40px 60px;
  position: relative;
  animation: fadeInUp 0.6s var(--transition-smooth) backwards;
}

.page-band[data-animate="0"] {
  animation-delay: 0.1s;
}

.page-band[data-animate="1"] {
  animation-delay: 0.2s;
}

.page-band[data-animate="2"] {
  animation-delay: 0.3s;
}

/* Parallax effect for page bands */
@media (min-width: 1024px) {
  .page-band {
    will-change: transform;
  }
}

.card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  transition: transform 0.3s var(--transition-smooth), box-shadow 0.3s var(--transition-smooth);
  max-width: 1400px;
  margin: 0 auto;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--teal), var(--teal-light));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s var(--transition-smooth);
}

.card:hover::before {
  transform: scaleX(1);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
}

.card-pad {
  padding: 40px;
}

@media (max-width: 768px) {
  .card-pad {
    padding: 24px 20px;
  }
}

/* Tabs */
.tabs-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

.tabs-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.tabs-logo {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--teal);
}

.tabs-logo-sub {
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--grey-light);
}

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

.tab-link {
  padding: 10px 20px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--grey-medium);
  font-size: 12px;
  text-transform: lowercase;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s var(--transition-smooth);
  font-family: inherit;
}

.tab-link:hover {
  border-color: var(--teal);
  color: var(--teal);
  transform: translateY(-2px);
}

.tab-link.is-active {
  background: var(--teal);
  color: var(--white);
  border-color: var(--teal);
}

.tab-panel {
  display: none;
  animation: fadeIn 0.4s var(--transition-smooth);
}

.tab-panel.is-active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Section switcher (dropdown nav) */
.section-switcher {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
}

.section-switcher-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--grey-light);
  display: flex;
  align-items: center;
  gap: 6px;
}

.section-switcher-icon {
  font-size: 14px;
}

.section-select {
  min-width: 220px;
}

/* Professional section menu (popover) */
.section-menu {
  position: relative;
}

.section-menu-button {
  display: inline-grid;
  grid-template-columns: auto auto 1fr auto;
  align-items: center;
  gap: 10px;
  min-width: 320px;
  padding: 12px 14px;
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color 0.2s var(--transition-smooth), box-shadow 0.2s var(--transition-smooth), transform 0.2s var(--transition-smooth);
  color: var(--ink);
}

.section-menu-button:hover {
  border-color: rgba(74, 144, 226, 0.5);
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.08);
  transform: translateY(-1px);
}

.section-menu-button[aria-expanded="true"] {
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.12);
}

.section-menu-icon,
.section-menu-caret {
  color: var(--grey-medium);
  display: inline-flex;
}

.section-menu-label {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--grey-light);
}

.section-menu-value {
  font-size: 14px;
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.section-menu-popover {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  min-width: 320px;
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 10px;
  display: none;
  z-index: 50;
  transform-origin: top right;
  animation: menuPop 0.18s var(--transition-smooth);
}

@keyframes menuPop {
  from { opacity: 0; transform: translateY(-6px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.section-menu[data-open="true"] .section-menu-popover {
  display: block;
}

.section-menu-item {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 10px;
  border: 0;
  border-radius: var(--radius-sm);
  background: transparent;
  cursor: pointer;
  color: var(--ink);
  text-align: left;
  transition: background 0.15s var(--transition-smooth), transform 0.15s var(--transition-smooth);
}

.section-menu-item:hover {
  background: rgba(74, 144, 226, 0.08);
  transform: translateX(2px);
}

.section-menu-item.is-active {
  background: rgba(74, 144, 226, 0.12);
}

.section-menu-item .item-icon {
  color: var(--teal);
  display: inline-flex;
}

.section-menu-item .item-text {
  font-size: 14px;
  color: var(--ink);
}

@media (max-width: 768px) {
  .section-menu-button,
  .section-menu-popover {
    min-width: 260px;
  }
}

.kicker {
  display: block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--teal);
  margin-bottom: 12px;
}

.lede {
  font-size: 16px;
  line-height: 1.7;
  color: var(--grey-medium);
  margin: 0;
}

.small {
  font-size: 14px;
  color: var(--grey-medium);
  margin: 0;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-top: 20px;
}

.horizontal-fields {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}

/* Learning plan – teacher-friendly finder layout */
.ip-layout {
  display: grid;
  grid-template-columns: 360px minmax(0, 1fr);
  gap: 24px;
  margin-top: 18px;
}

.ip-sidebar {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.ip-filters {
  display: grid;
  gap: 14px;
}

.ip-list {
  background: var(--bg-alt);
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.ip-list-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
}

.ip-list-title {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--grey-light);
}

.ip-list-count {
  font-size: 12px;
  color: var(--grey-medium);
}

.ip-list-items {
  max-height: 520px;
  overflow: auto;
}

.ip-barrier-item {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 14px;
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  text-align: left;
  color: var(--ink);
  transition: background 0.15s var(--transition-smooth);
}

.ip-barrier-item:hover {
  background: rgba(74, 144, 226, 0.08);
}

.ip-barrier-item.is-active {
  background: rgba(74, 144, 226, 0.14);
}

.ip-barrier-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  text-transform: lowercase;
}

.ip-barrier-tags {
  font-size: 12px;
  color: var(--grey-medium);
}

.ip-detail {
  min-height: 520px;
}

.ip-empty {
  border: 2px dashed var(--border);
  border-radius: var(--radius-md);
  padding: 28px;
  color: var(--ink);
  background: var(--bg-alt);
}

.ip-empty-title {
  font-family: "Georgia", "Times New Roman", serif;
  font-size: 22px;
  margin-bottom: 6px;
  color: var(--ink);
}

.ip-empty-text {
  color: var(--grey-medium);
  font-size: 14px;
  max-width: 48ch;
}

.ip-detail-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 2px solid var(--border);
  overflow: hidden;
}

.ip-detail-header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
  border-bottom: 1px solid var(--border);
}

.ip-detail-label {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  text-transform: lowercase;
  margin-bottom: 6px;
}

.ip-detail-desc {
  color: var(--grey-medium);
  font-size: 14px;
  line-height: 1.55;
}

.ip-detail-actions {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.ip-adjustments {
  padding: 16px 20px 20px;
}

.ip-adjustments-title {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--grey-light);
  margin-bottom: 12px;
}

.ip-adj-card {
  background: var(--bg-alt);
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px;
  margin-bottom: 12px;
}

.ip-adj-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  margin-bottom: 10px;
}

.ip-adj-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
}

.ip-adj-controls {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 10px;
}

@media (max-width: 1024px) {
  .ip-layout {
    grid-template-columns: 1fr;
  }
  .ip-list-items {
    max-height: 320px;
  }
  .ip-adj-controls {
    grid-template-columns: 1fr;
  }
}

.section {
  margin-top: 32px;
}

.section:first-child {
  margin-top: 0;
}

.tab-panel .lede {
  margin-bottom: 22px;
}

.tab-panel .form-grid {
  margin-top: 0;
}

.button-row {
  margin-top: 12px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

/* Beta UI helpers */
.beta-hidden {
  display: none !important;
}

.beta-banner {
  margin: 12px 0 18px;
  padding: 12px 14px;
  background: var(--bg-alt);
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--ink);
}

.beta-toggle {
  margin: 18px 0 18px;
  padding: 14px 14px;
  background: var(--bg-alt);
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
}

.beta-toggle-row {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 14px;
  color: var(--ink);
}

.beta-toggle-row input[type="checkbox"] {
  margin-top: 3px;
  accent-color: var(--teal);
}

.beta-panel {
  padding: 14px 14px;
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-alt);
}

.beta-panel-title {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--grey-light);
  margin-bottom: 10px;
}

.beta-row {
  display: grid;
  gap: 12px;
}

.beta-field label {
  font-size: 12px;
}

.beta-inline {
  display: flex;
  gap: 8px;
}

.beta-add-btn {
  padding: 12px 14px;
  white-space: nowrap;
}

.beta-student-list {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.beta-student-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 999px;
  background: var(--surface);
  border: 2px solid var(--border);
  color: var(--ink);
  font-size: 13px;
}

.beta-student-pill button {
  border: 0;
  background: transparent;
  cursor: pointer;
  color: var(--grey-medium);
  font-size: 14px;
}

.beta-note {
  margin-top: 10px;
  font-size: 12px;
  color: var(--grey-medium);
}

.lp-saved {
  border-top: 1px solid var(--border);
  padding: 16px 20px 18px;
  background: rgba(255, 255, 255, 0.35);
}

.lp-saved-title {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--grey-light);
  margin-bottom: 10px;
}

.lp-saved-item {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: flex-start;
  padding: 10px 10px;
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  margin-bottom: 10px;
}

.lp-saved-item-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 4px;
}

.lp-saved-item-meta {
  font-size: 12px;
  color: var(--grey-medium);
}

.lp-saved-item button {
  padding: 8px 12px;
  font-size: 12px;
}

label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--grey-dark);
  margin-bottom: 8px;
}

.form-control,
input[type="text"],
input[type="date"] {
  width: 100%;
  padding: 12px 16px;
  font-size: 14px;
  font-family: inherit;
  color: var(--ink);
  background: var(--white);
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  transition: all 0.2s var(--transition-smooth);
}

.form-control:focus,
input[type="text"]:focus,
input[type="date"]:focus {
  outline: none;
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}

.form-control:hover,
input[type="text"]:hover,
input[type="date"]:hover {
  border-color: var(--grey-light);
}

.nccd-copyable {
  width: 100%;
  padding: 16px;
  font-size: 14px;
  font-family: inherit;
  line-height: 1.7;
  color: var(--ink);
  background: var(--bg-alt);
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  resize: vertical;
  transition: all 0.2s var(--transition-smooth);
}

.nccd-copyable:focus {
  outline: none;
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
  background: var(--surface);
}

.btn {
  padding: 12px 24px;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--white);
  background: var(--teal);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.3s var(--transition-smooth);
  font-family: inherit;
}

.btn:hover {
  background: var(--teal-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn:active {
  transform: translateY(0);
}

.btn.secondary {
  background: var(--teal);
  color: var(--white);
}

.btn.secondary:hover {
  background: var(--teal-dark);
}

.btn.ghost {
  background: transparent;
  color: var(--teal);
  border: 1px solid var(--teal);
}

.btn.ghost:hover {
  background: var(--teal);
  color: var(--white);
}

.category-selector {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 12px;
  margin-top: 12px;
}

.category-option {
  display: flex;
  align-items: center;
  padding: 14px 16px;
  background: var(--bg-alt);
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.3s var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.category-option::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 0;
  height: 100%;
  background: var(--teal);
  transition: width 0.3s var(--transition-smooth);
  z-index: 0;
}

.category-option:hover {
  border-color: var(--teal);
  transform: translateX(4px);
  box-shadow: var(--shadow-sm);
}

.category-option input[type="checkbox"] {
  margin-right: 12px;
  width: 18px;
  height: 18px;
  cursor: pointer;
  z-index: 1;
  position: relative;
  accent-color: var(--teal);
}

.category-option input[type="checkbox"]:checked ~ span {
  color: var(--teal-dark);
  font-weight: 600;
}

.category-option:has(input[type="checkbox"]:checked) {
  background: rgba(74, 144, 226, 0.1);
  border-color: var(--teal);
}

.category-option:has(input[type="checkbox"]:checked)::before {
  width: 4px;
}

.category-option span {
  position: relative;
  z-index: 1;
  font-size: 14px;
  color: var(--ink);
  transition: color 0.2s var(--transition-smooth);
  text-transform: lowercase;
}

/* IP Support Sections */
.ip-barrier-section {
  margin-bottom: 20px;
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  overflow: hidden;
  transition: all 0.3s var(--transition-smooth);
  animation: slideDown 0.3s var(--transition-smooth);
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.ip-barrier-section.open {
  border-color: var(--teal);
  box-shadow: var(--shadow-md);
}

.ip-barrier-header {
  width: 100%;
  padding: 24px;
  text-align: left;
  background: transparent;
  border: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
  transition: all 0.2s var(--transition-smooth);
}

.ip-barrier-header:hover {
  background: var(--bg-alt);
}

.ip-barrier-header .barrier-label {
  flex: 1;
  padding-right: 140px;
}

.ip-barrier-header .barrier-label strong {
  font-size: 16px;
  color: var(--ink);
  text-transform: capitalize;
  display: block;
  margin-bottom: 4px;
}

.ip-barrier-header .barrier-desc {
  color: var(--grey-medium);
  font-size: 14px;
  line-height: 1.5;
}

.ip-barrier-header .toggle-icon {
  font-size: 24px;
  color: var(--teal);
  font-weight: 700;
  min-width: 24px;
  text-align: center;
  transition: transform 0.3s var(--transition-smooth);
}

.ip-barrier-section.open .ip-barrier-header .toggle-icon {
  transform: rotate(180deg);
}

.ip-barrier-content {
  padding: 0 24px 24px 24px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s var(--transition-smooth), padding 0.3s var(--transition-smooth);
}

.ip-barrier-section.open .ip-barrier-content {
  max-height: 2000px;
  padding: 0 24px 24px 24px;
}

.ip-adjustments-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 16px;
}

.ip-adjustment-item {
  padding: 20px;
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-alt);
  position: relative;
  transition: all 0.3s var(--transition-smooth);
  animation: fadeIn 0.3s var(--transition-smooth) backwards;
}

.ip-adjustment-item:nth-child(1) { animation-delay: 0.1s; }
.ip-adjustment-item:nth-child(2) { animation-delay: 0.2s; }
.ip-adjustment-item:nth-child(3) { animation-delay: 0.3s; }

.ip-adjustment-item:hover {
  border-color: var(--teal);
  box-shadow: var(--shadow-sm);
  transform: translateX(4px);
}

.ip-adjustment-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.ip-adjustment-header strong {
  font-size: 15px;
  color: var(--ink);
  font-weight: 700;
  text-transform: capitalize;
}

.ip-adjustment-controls {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin-bottom: 12px;
}

.ip-adjustment-controls label {
  font-size: 11px;
  margin-bottom: 4px;
}

.ip-adjustment-controls select {
  font-size: 13px;
  padding: 8px 12px;
}

.ip-adjustment-text {
  width: 100%;
  border: none;
  background: transparent;
  resize: none;
  padding: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink);
  font-family: inherit;
  min-height: 60px;
}

.howto-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.howto-list li {
  padding-left: 24px;
  position: relative;
  color: var(--grey-medium);
  font-size: 14px;
  line-height: 1.7;
}

.howto-list li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--teal);
  font-size: 20px;
  line-height: 1;
}

.howto-list strong {
  color: var(--grey-dark);
  display: block;
  margin-bottom: 4px;
}

.footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 20px 24px;
  background: var(--white);
  border-top: 2px solid var(--border);
  font-size: 13px;
  color: var(--grey-medium);
  text-align: center;
  z-index: 100;
}

.footer .accent {
  color: var(--teal);
  font-weight: 600;
}

/* Parallax Scroll Effect */
@media (min-width: 1024px) {
  .page-band {
    transform: translateZ(0);
    will-change: transform;
  }
}

/* Responsive Design */
@media (max-width: 1024px) {
  .site-hero {
    grid-template-columns: 1fr;
  }
  
  .site-sidebar {
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    padding: 24px 32px;
  }
  
  .site-sidebar-nav {
    flex-direction: row;
    flex-wrap: wrap;
  }
  
  .site-sidebar-nav a.is-active::before {
    display: none;
  }
  
  .site-hero-content {
    padding: 40px 32px;
  }
  
  .site-info {
    padding: 60px 32px;
  }
  
  .site-info-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .page-band {
    padding: 32px 24px;
  }
}

@media (max-width: 768px) {
  .site-nav {
    flex-direction: column;
    gap: 16px;
    align-items: flex-start;
  }
  
  .form-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .category-selector {
    grid-template-columns: 1fr;
  }
  
  .ip-barrier-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  
  .ip-barrier-header .barrier-label {
    padding-right: 0;
  }
  
  .ip-adjustment-controls {
    grid-template-columns: 1fr;
  }
  
  .footer {
    padding: 16px;
    font-size: 12px;
  }
  
  .tabs-nav {
    flex-direction: column;
  }
  
  .tab-link {
    width: 100%;
    text-align: left;
  }
}

/* Focus visible for accessibility */
*:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
}

/* Print styles */
@media print {
  .footer {
    position: static;
    border-top: 1px solid var(--border);
    margin-top: 40px;
  }
  
  .btn {
    display: none;
  }
  
  .ip-barrier-section {
    break-inside: avoid;
  }
}