:root {
  --color-primary-dark: #0A1F33;
  --color-primary: #143A5C;
  --color-neutral: #5A6B7A;
  --color-surface: #FFFFFF;
  --color-accent-soft: #6B9BA6;
  --color-surface-alt: #F2F5F7;
  --color-accent: #E8A33D;
  --color-primary-soft: #D6E4F0;
  --font-heading: "Inter", sans-serif;
  --font-body: "Source Sans 3", sans-serif;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;
  --container-max: 1200px;
  --container-gutter: 24px;
  --radius-small: 4px;
  --radius-medium: 8px;
  --radius-large: 12px;
  --shadow-subtle: 0 1px 3px rgba(0, 0, 0, 0.1);
  --transition-fast: 0.2s ease;
}

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

html {
  -webkit-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-neutral);
  background-color: var(--color-surface);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img,
picture,
svg,
video,
canvas {
  display: block;
  max-width: 100%;
  height: auto;
}

input,
button,
textarea,
select {
  font: inherit;
  color: inherit;
}

button {
  background: none;
  border: none;
  cursor: pointer;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

ul,
ol {
  list-style-position: inside;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  color: var(--color-primary-dark);
  line-height: 1.2;
  font-weight: 700;
  margin-block-end: var(--space-4);
}

h1 {
  font-size: clamp(28px, 4vw, 36px);
  line-height: 1.2;
}

h2 {
  font-size: clamp(24px, 3vw, 28px);
  line-height: 1.3;
  font-weight: 600;
}

h3 {
  font-size: clamp(20px, 2.5vw, 22px);
  line-height: 1.4;
  font-weight: 600;
}

h4 {
  font-size: 18px;
  line-height: 1.4;
  font-weight: 600;
}

h5 {
  font-size: 16px;
  line-height: 1.5;
  font-weight: 600;
}

h6 {
  font-size: 14px;
  line-height: 1.5;
  font-weight: 600;
}

p {
  margin-block-end: var(--space-4);
  line-height: 1.6;
}

blockquote {
  margin-block-end: var(--space-4);
  padding-inline-start: var(--space-5);
  border-inline-start: 3px solid var(--color-accent-soft);
  color: var(--color-primary);
  font-style: italic;
}

figure {
  margin-block-end: var(--space-5);
}

figcaption {
  font-size: 14px;
  line-height: 1.5;
  color: var(--color-neutral);
  margin-block-start: var(--space-2);
}

address {
  font-style: normal;
}

pre,
code,
kbd,
samp {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.9em;
}

table {
  border-collapse: collapse;
  width: 100%;
  margin-block-end: var(--space-5);
}

th,
td {
  text-align: start;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-accent-soft);
}

th {
  background-color: var(--color-primary-dark);
  color: var(--color-surface);
  font-family: var(--font-heading);
  font-weight: 600;
}

tbody tr:nth-child(even) {
  background-color: var(--color-surface-alt);
}

hr {
  border: none;
  border-block-start: 1px solid var(--color-accent-soft);
  margin-block: var(--space-6);
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-gutter);
}

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

.section--compact {
  padding-block: var(--space-7);
}

.section--roomy {
  padding-block: var(--space-9);
}

.card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-accent-soft);
  border-radius: var(--radius-medium);
  padding: var(--space-5);
  box-shadow: var(--shadow-subtle);
}

.card--alt {
  background-color: var(--color-surface-alt);
}

.card > :last-child,
.panel > :last-child,
.section > :last-child {
  margin-block-end: 0;
}

.panel {
  background-color: var(--color-surface);
  border: 1px solid var(--color-accent-soft);
  border-radius: var(--radius-medium);
  padding: var(--space-5);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-small);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 16px;
  line-height: 1.4;
  border: 1px solid transparent;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
  text-decoration: none;
  min-height: 44px;
}

.btn:hover {
  text-decoration: none;
}

.btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

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

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

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

.btn--accent:hover {
  background-color: #d18f2e;
  color: var(--color-primary-dark);
}

.btn--outline {
  background-color: transparent;
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn--outline:hover {
  background-color: var(--color-primary-soft);
  color: var(--color-primary-dark);
}

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

.btn--ghost:hover {
  background-color: var(--color-primary-soft);
  color: var(--color-primary-dark);
}

.btn--small {
  padding: var(--space-2) var(--space-3);
  font-size: 14px;
  min-height: 36px;
}

.btn--large {
  padding: var(--space-4) var(--space-6);
  font-size: 18px;
  min-height: 52px;
}

.overline {
  display: block;
  font-family: var(--font-heading);
  font-size: 12px;
  line-height: 1.4;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin-block-end: var(--space-2);
}

.tag {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  background-color: var(--color-primary-soft);
  color: var(--color-primary-dark);
  border-radius: var(--radius-small);
  font-size: 14px;
  line-height: 1.5;
  font-weight: 600;
}

.tag--accent {
  background-color: var(--color-accent);
  color: var(--color-primary-dark);
}

.tag--outline {
  background-color: transparent;
  border: 1px solid var(--color-accent-soft);
  color: var(--color-neutral);
}

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

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  z-index: 1000;
  background-color: var(--color-primary-dark);
  color: var(--color-surface);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-small);
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: var(--space-4);
  color: var(--color-surface);
  text-decoration: none;
}

.flex {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  min-width: 0;
}

.flex > * {
  min-width: 0;
}

.flex--inline {
  display: inline-flex;
}

.flex--nowrap {
  flex-wrap: nowrap;
}

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

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

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

.flex--start {
  align-items: flex-start;
}

.flex--end {
  align-items: flex-end;
}

.flex--gap-sm {
  gap: var(--space-2);
}

.flex--gap-lg {
  gap: var(--space-6);
}

.flex--gap-xl {
  gap: var(--space-7);
}

.flex--grow {
  flex: 1 1 0;
}

.flex--shrink-none {
  flex-shrink: 0;
}

.grid {
  display: grid;
  gap: var(--space-5);
  min-width: 0;
}

.grid > * {
  min-width: 0;
}

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

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

.grid--4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.grid--auto {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid--gap-sm {
  gap: var(--space-3);
}

.grid--gap-lg {
  gap: var(--space-6);
}

.content-list {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-5) 0;
}

.content-list li {
  margin-block-end: var(--space-3);
  padding-inline-start: var(--space-5);
  position: relative;
}

.content-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-accent);
}

.content-list li:last-child {
  margin-block-end: 0;
}

.content-list--check li::before {
  content: "✓";
  width: auto;
  height: auto;
  background: none;
  color: var(--color-primary);
  font-weight: 700;
  top: 0;
}

.content-list--arrow li::before {
  content: "→";
  width: auto;
  height: auto;
  background: none;
  color: var(--color-accent);
  font-weight: 700;
  top: 0;
}

.form-field {
  margin-block-end: var(--space-4);
}

.form-field label {
  display: block;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 14px;
  color: var(--color-primary-dark);
  margin-block-end: var(--space-2);
}

.form-field input,
.form-field textarea,
.form-field select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-accent-soft);
  border-radius: var(--radius-small);
  background-color: var(--color-surface);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px var(--color-accent);
}

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

.form-field input::placeholder,
.form-field textarea::placeholder {
  color: var(--color-neutral);
  opacity: 0.7;
}

.form-field--error input,
.form-field--error textarea,
.form-field--error select {
  border-color: #c0392b;
}

.form-field__error {
  display: block;
  font-size: 14px;
  color: #c0392b;
  margin-block-start: var(--space-1);
}

.form-field__hint {
  display: block;
  font-size: 14px;
  color: var(--color-neutral);
  margin-block-start: var(--space-1);
}

.search-bar {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  border: 1px solid var(--color-accent-soft);
  border-radius: var(--radius-small);
  background-color: var(--color-surface);
  padding: var(--space-2) var(--space-3);
  min-width: 0;
}

.search-bar input {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  min-width: 0;
  color: var(--color-primary-dark);
}

.search-bar input::placeholder {
  color: var(--color-neutral);
  opacity: 0.7;
}

.search-bar button {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-small);
  color: var(--color-primary);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.search-bar button:hover {
  background-color: var(--color-primary-soft);
  color: var(--color-primary-dark);
}

.search-bar:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px var(--color-accent);
}

.table-responsive {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin-block-end: var(--space-5);
}

.table-responsive table {
  min-width: 600px;
  margin-block-end: 0;
}

.quick-facts {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  margin-block-end: var(--space-5);
}

.quick-facts__item {
  background-color: var(--color-surface-alt);
  border: 1px solid var(--color-accent-soft);
  border-radius: var(--radius-small);
  padding: var(--space-4);
}

.quick-facts__label {
  display: block;
  font-size: 12px;
  line-height: 1.4;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-neutral);
  margin-block-end: var(--space-1);
}

.quick-facts__value {
  display: block;
  font-family: var(--font-heading);
  font-size: 18px;
  line-height: 1.4;
  font-weight: 700;
  color: var(--color-primary-dark);
}

.deck-strip {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  background-color: var(--color-primary-dark);
  color: var(--color-surface);
  border-radius: var(--radius-small);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-block-end: var(--space-4);
}

.deck-strip__icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
}

.comparison-panel {
  border: 1px solid var(--color-accent-soft);
  border-radius: var(--radius-medium);
  overflow: hidden;
  margin-block-end: var(--space-5);
}

.comparison-panel__header {
  background-color: var(--color-primary-dark);
  color: var(--color-surface);
  padding: var(--space-4) var(--space-5);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 18px;
}

.comparison-panel__body {
  padding: var(--space-5);
  background-color: var(--color-surface);
}

.comparison-panel__body > :last-child {
  margin-block-end: 0;
}

.sidebar {
  background-color: var(--color-surface-alt);
  border: 1px solid var(--color-accent-soft);
  border-radius: var(--radius-medium);
  padding: var(--space-5);
}

.sidebar > :last-child {
  margin-block-end: 0;
}

.sidebar__title {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 600;
  color: var(--color-primary-dark);
  margin-block-end: var(--space-4);
  padding-block-end: var(--space-3);
  border-block-end: 1px solid var(--color-accent-soft);
}

.resource-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  background-color: var(--color-surface);
  border: 1px solid var(--color-accent-soft);
  border-radius: var(--radius-medium);
  padding: var(--space-5);
  box-shadow: var(--shadow-subtle);
}

.resource-card__title {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 600;
  color: var(--color-primary-dark);
  margin-block-end: 0;
}

.resource-card__body {
  color: var(--color-neutral);
  font-size: 16px;
  line-height: 1.6;
}

.resource-card__footer {
  margin-block-start: auto;
  padding-block-start: var(--space-3);
  border-block-start: 1px solid var(--color-accent-soft);
}

.resource-card > :last-child {
  margin-block-end: 0;
}

.image-frame {
  border: 1px solid var(--color-accent-soft);
  border-radius: var(--radius-small);
  overflow: hidden;
  background-color: var(--color-surface-alt);
}

.image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.image-frame--4-3 {
  aspect-ratio: 4 / 3;
}

.image-frame--16-9 {
  aspect-ratio: 16 / 9;
}

.image-frame--square {
  aspect-ratio: 1 / 1;
}

.hero-image {
  position: relative;
  border: 1px solid var(--color-accent-soft);
  border-radius: var(--radius-large);
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background-color: var(--color-primary-dark);
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background-color: var(--color-primary-dark);
  opacity: 0.2;
  pointer-events: none;
}

.hero-image__content {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-6);
  color: var(--color-surface);
}

.hero-image__content h1,
.hero-image__content h2,
.hero-image__content h3 {
  color: var(--color-surface);
  margin-block-end: var(--space-2);
}

.hero-image__content p {
  color: var(--color-surface);
  opacity: 0.9;
  margin-block-end: 0;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-small);
  font-size: 12px;
  line-height: 1.4;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background-color: var(--color-primary-soft);
  color: var(--color-primary-dark);
}

.badge--accent {
  background-color: var(--color-accent);
  color: var(--color-primary-dark);
}

.badge--dark {
  background-color: var(--color-primary-dark);
  color: var(--color-surface);
}

.badge--outline {
  background-color: transparent;
  border: 1px solid var(--color-accent-soft);
  color: var(--color-neutral);
}

@media (max-width: 1024px) {
  :root {
    --container-gutter: 20px;
  }

  .section {
    padding-block: var(--space-7);
  }

  .section--roomy {
    padding-block: var(--space-8);
  }

  .grid--4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  :root {
    --container-gutter: 16px;
  }

  .section {
    padding-block: var(--space-7);
  }

  .section--compact {
    padding-block: var(--space-6);
  }

  .section--roomy {
    padding-block: var(--space-7);
  }

  .card {
    padding: var(--space-4);
  }

  .panel {
    padding: var(--space-4);
  }

  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }

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

  .flex--column-mobile {
    flex-direction: column;
  }

  .hero-image__content {
    padding: var(--space-4);
  }

  .comparison-panel__header {
    padding: var(--space-3) var(--space-4);
    font-size: 16px;
  }

  .comparison-panel__body {
    padding: var(--space-4);
  }

  .sidebar {
    padding: var(--space-4);
  }

  .resource-card {
    padding: var(--space-4);
  }
}

@media (max-width: 480px) {
  .btn {
    width: 100%;
  }

  .btn--auto-width {
    width: auto;
  }

  .quick-facts {
    grid-template-columns: 1fr;
  }

  .deck-strip {
    font-size: 12px;
    padding: var(--space-2) var(--space-3);
  }
}

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