:root {
  --color-space-void: #0a0f1a;
  --color-midnight-blue: #0d1b2a;
  --color-steel-blue: #1b263b;
  --color-slate-blue: #415a77;
  --color-mist-blue: #778da9;
  --color-silver-white: #e0e1dd;
  --color-deep-violet: #4b0082;
  --color-royal-blue: #3d5a80;

  --font-heading: "Cormorant Garamond", serif;
  --font-body: "Inter", sans-serif;

  --text-display-size: clamp(3rem, 6vw, 4.5rem);
  --text-h1-size: clamp(2.25rem, 4.5vw, 3rem);
  --text-h2-size: clamp(1.75rem, 3.5vw, 2.25rem);
  --text-h3-size: clamp(1.375rem, 2.5vw, 1.5rem);
  --text-body-size: 1.125rem;
  --text-small-size: 0.875rem;

  --text-display-line-height: 1.1;
  --text-h1-line-height: 1.2;
  --text-h2-line-height: 1.3;
  --text-h3-line-height: 1.4;
  --text-body-line-height: 1.6;
  --text-small-line-height: 1.5;

  --text-display-weight: 600;
  --text-h1-weight: 600;
  --text-h2-weight: 600;
  --text-h3-weight: 600;
  --text-body-weight: 400;
  --text-small-weight: 400;

  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 3rem;
  --space-2xl: 6rem;

  --container-max-width: 1200px;
  --container-padding: var(--space-lg);
  --section-padding-desktop: var(--space-2xl);
  --section-padding-mobile: var(--space-xl);
  --card-padding: var(--space-lg);
  --card-padding-mobile: var(--space-md);
  --nav-margin-top: var(--space-md);

  --surface-translucent: rgba(13, 27, 42, 0.72);
  --surface-elevated: rgba(27, 38, 59, 0.85);
  --surface-card-gradient: linear-gradient(145deg, rgba(13, 27, 42, 0.92), rgba(27, 38, 59, 0.88));
  --border-subtle: 1px solid rgba(65, 90, 119, 0.4);
  --shadow-soft: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 24px rgba(61, 90, 128, 0.25);
  --focus-outline: 2px solid var(--color-royal-blue);
  --focus-glow: 0 0 12px rgba(61, 90, 128, 0.5);

  --radius-small: 4px;
  --radius-medium: 8px;
  --radius-large: 16px;
  --radius-pill: 999px;

  --transition-fast: 180ms ease;
  --transition-base: 280ms ease;
  --transition-slow: 500ms ease;
}

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

html {
  font-size: 100%;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  background-color: var(--color-space-void);
  color: var(--color-silver-white);
}

body {
  font-family: var(--font-body);
  font-size: var(--text-body-size);
  font-weight: var(--text-body-weight);
  line-height: var(--text-body-line-height);
  min-height: 100vh;
  min-width: 320px;
  overflow-x: hidden;
  background-color: var(--color-space-void);
  color: var(--color-silver-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

button {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

a {
  color: var(--color-royal-blue);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-mist-blue);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
[tabindex]:focus-visible {
  outline: var(--focus-outline);
  outline-offset: 2px;
  box-shadow: var(--focus-glow);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: var(--text-h1-weight);
  color: var(--color-silver-white);
  letter-spacing: 0.02em;
  overflow-wrap: break-word;
  word-wrap: break-word;
  hyphens: auto;
}

h1 {
  font-size: var(--text-h1-size);
  line-height: var(--text-h1-line-height);
  margin-block-end: var(--space-lg);
}

h2 {
  font-size: var(--text-h2-size);
  line-height: var(--text-h2-line-height);
  margin-block-end: var(--space-md);
}

h3 {
  font-size: var(--text-h3-size);
  line-height: var(--text-h3-line-height);
  margin-block-end: var(--space-md);
}

h4,
h5,
h6 {
  font-size: var(--text-body-size);
  line-height: var(--text-body-line-height);
  margin-block-end: var(--space-sm);
}

p {
  font-size: var(--text-body-size);
  line-height: var(--text-body-line-height);
  margin-block-end: var(--space-md);
  overflow-wrap: break-word;
  word-wrap: break-word;
}

ul,
ol {
  margin-block-end: var(--space-md);
  padding-inline-start: var(--space-lg);
}

ul ul,
ol ol,
ul ol,
ol ul {
  margin-block-end: 0;
}

blockquote {
  margin-block-end: var(--space-md);
  padding-inline-start: var(--space-lg);
  border-inline-start: 2px solid var(--color-slate-blue);
  color: var(--color-mist-blue);
  font-style: italic;
}

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

figcaption {
  font-size: var(--text-small-size);
  line-height: var(--text-small-line-height);
  color: var(--color-mist-blue);
  margin-block-start: var(--space-xs);
}

hr {
  border: none;
  border-block-start: var(--border-subtle);
  margin-block: var(--space-xl);
}

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

th,
td {
  padding: var(--space-sm) var(--space-md);
  text-align: start;
  border-block-end: var(--border-subtle);
}

th {
  font-weight: 600;
  color: var(--color-silver-white);
}

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

pre {
  background-color: var(--color-midnight-blue);
  border: var(--border-subtle);
  border-radius: var(--radius-medium);
  padding: var(--space-md);
  overflow-x: auto;
  margin-block-end: var(--space-md);
}

small {
  font-size: var(--text-small-size);
  line-height: var(--text-small-line-height);
}

strong {
  font-weight: 600;
}

em {
  font-style: italic;
}

abbr[title] {
  text-decoration: underline dotted;
  cursor: help;
}

mark {
  background-color: rgba(75, 0, 130, 0.4);
  color: var(--color-silver-white);
  padding-inline: 0.2em;
  border-radius: var(--radius-small);
}

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

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

@media (max-width: 768px) {
  .section {
    padding-block: var(--section-padding-mobile);
  }
}

.surface-card {
  background: var(--surface-card-gradient);
  border: var(--border-subtle);
  border-radius: var(--radius-large);
  padding: var(--card-padding);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

@media (max-width: 768px) {
  .surface-card {
    padding: var(--card-padding-mobile);
  }
}

.surface-elevated {
  background: var(--surface-elevated);
  border: var(--border-subtle);
  border-radius: var(--radius-medium);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  background-color: var(--color-royal-blue);
  color: var(--color-silver-white);
  font-family: var(--font-body);
  font-size: var(--text-body-size);
  font-weight: 500;
  line-height: 1.2;
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-small);
  border: 1px solid transparent;
  min-height: 44px;
  text-align: center;
  cursor: pointer;
  transition: background-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
  text-decoration: none;
}

.btn:hover {
  background-color: var(--color-mist-blue);
  color: var(--color-space-void);
  box-shadow: var(--shadow-glow);
  transform: translateY(-1px);
}

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

.btn:focus-visible {
  outline: var(--focus-outline);
  outline-offset: 2px;
  box-shadow: var(--focus-glow);
}

.btn-secondary {
  background-color: transparent;
  border-color: var(--color-slate-blue);
  color: var(--color-silver-white);
}

.btn-secondary:hover {
  background-color: rgba(65, 90, 119, 0.25);
  color: var(--color-silver-white);
  border-color: var(--color-mist-blue);
}

.btn-ghost {
  background-color: transparent;
  border-color: transparent;
  color: var(--color-mist-blue);
}

.btn-ghost:hover {
  background-color: rgba(119, 141, 169, 0.15);
  color: var(--color-silver-white);
  border-color: transparent;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  margin-block-end: var(--space-md);
}

.form-label {
  font-size: var(--text-small-size);
  font-weight: 500;
  color: var(--color-mist-blue);
  letter-spacing: 0.03em;
}

.form-input,
.form-textarea,
.form-select {
  background-color: rgba(10, 15, 26, 0.7);
  border: none;
  border-block-end: 1px solid var(--color-slate-blue);
  border-radius: var(--radius-small) var(--radius-small) 0 0;
  padding: var(--space-sm) var(--space-md);
  color: var(--color-silver-white);
  font-size: var(--text-body-size);
  line-height: var(--text-body-line-height);
  min-height: 44px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-block-end-color: var(--color-royal-blue);
  background-color: rgba(10, 15, 26, 0.9);
  box-shadow: var(--focus-glow);
}

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

.form-select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23778da9' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-md) center;
  padding-inline-end: var(--space-xl);
}

.form-hint {
  font-size: var(--text-small-size);
  line-height: var(--text-small-line-height);
  color: var(--color-mist-blue);
}

.form-error {
  font-size: var(--text-small-size);
  line-height: var(--text-small-line-height);
  color: #e57373;
}

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

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

.flex-row {
  display: flex;
  flex-direction: row;
  gap: var(--space-md);
  align-items: center;
  flex-wrap: wrap;
  min-width: 0;
}

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

.flex-column {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  min-width: 0;
}

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

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  min-width: 0;
}

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

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  flex-wrap: wrap;
  min-width: 0;
}

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

.flex-start {
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
  gap: var(--space-md);
  flex-wrap: wrap;
  min-width: 0;
}

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

.flex-end {
  display: flex;
  align-items: flex-end;
  justify-content: flex-end;
  gap: var(--space-md);
  flex-wrap: wrap;
  min-width: 0;
}

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

.flex-1 {
  flex: 1 1 0%;
  min-width: 0;
}

.flex-auto {
  flex: 0 1 auto;
  min-width: 0;
}

.flex-none {
  flex: none;
}

.flex-grow {
  flex: 1 0 auto;
  min-width: 0;
}

.flex-shrink {
  flex: 0 1 auto;
  min-width: 0;
}

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

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

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

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

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

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

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

.grid-auto {
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: repeat(auto-fill, minmax(min(280px, 100%), 1fr));
}

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

.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-md);
  z-index: 10000;
  background-color: var(--color-royal-blue);
  color: var(--color-silver-white);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-small);
  font-weight: 500;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-md);
}

:where(h1, h2, h3, h4, h5, h6, p, ul, ol, blockquote, figure, table, pre):last-child {
  margin-block-end: 0;
}

:where(.surface-card, .surface-elevated, .form-field, .flex-column, .flex-row, .flex, .flex-center, .flex-between, .flex-start, .flex-end, .grid-auto) > :last-child {
  margin-block-end: 0;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    transition-delay: 0ms !important;
  }
}

@media (max-width: 768px) {
  :root {
    --container-padding: var(--space-md);
    --section-padding-desktop: var(--space-xl);
  }

  .btn {
    padding: var(--space-sm) var(--space-md);
    font-size: var(--text-small-size);
  }
}