/* Base site styles — dog-foods the token system */
@import './tokens.css';

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

html {
  font-family: var(--font-sans);
  font-size: var(--text-base-size);
  line-height: var(--text-base-line-height);
  color: var(--color-text-primary);
  background: var(--color-bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.3s ease, color 0.3s ease;
}

body {
  min-height: 100vh;
}

a { color: var(--color-text-secondary); text-decoration: none; transition: color 0.15s; }
a:hover { color: var(--color-text-primary); }

/* ---- App Shell ---- */
.app-shell {
  min-height: 100vh;
}

/* ---- Main Content ---- */
.site-main {
  margin-left: 220px;
  margin-top: 48px;
  padding: var(--sp-8) var(--sp-8);
  max-width: 960px;
  transition: margin-left 0.2s var(--ease-default);
}


.page-title {
  font-size: var(--text-3xl-size);
  font-weight: var(--text-3xl-weight);
  line-height: var(--text-3xl-line-height);
  letter-spacing: -0.02em;
  margin-bottom: var(--sp-2);
}

.page-subtitle {
  font-size: var(--text-lg-size);
  font-weight: var(--weight-regular);
  line-height: var(--text-lg-line-height);
  color: var(--color-text-secondary);
  margin-bottom: var(--sp-8);
}

/* ---- Section ---- */
.section {
  margin-bottom: var(--sp-12);
}

.section__title {
  font-size: var(--text-xl-size);
  font-weight: var(--text-xl-weight);
  line-height: var(--text-xl-line-height);
  margin-bottom: var(--sp-4);
}

.section__desc {
  font-size: var(--text-base-size);
  color: var(--color-text-secondary);
  margin-bottom: var(--sp-6);
  max-width: 600px;
}

/* ---- Token Table ---- */
.token-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm-size);
}

.token-table th {
  text-align: left;
  padding: var(--sp-2) var(--sp-3);
  font-weight: var(--weight-semibold);
  color: var(--color-text-tertiary);
  font-size: var(--text-xs-size);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-bottom: 1px solid var(--color-border-default);
}

.token-table td {
  padding: var(--sp-2) var(--sp-3);
  border-bottom: 1px solid var(--color-border-subtle);
  vertical-align: middle;
}

.token-table code {
  font-family: var(--font-mono);
  font-size: var(--text-xs-size);
  background: var(--color-bg-elevated);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
}

/* ---- Side-by-Side Preview ---- */
.preview-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-4);
  margin-bottom: var(--sp-6);
}

.preview-pane {
  padding: var(--sp-6);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
}

.preview-pane--light {
  background: #F0F0F0;
}

.preview-pane--dark {
  background: #171717;
  color: #FAFAFA;
}

.preview-pane__label {
  position: absolute;
  top: var(--sp-2);
  right: var(--sp-3);
  font-size: var(--text-xs-size);
  color: var(--color-text-tertiary);
  font-family: var(--font-mono);
}

/* ---- Hero Entrance Animations ---- */

/* Title decipher characters */
.page-title--animating .hero-char {
  display: inline-block;
  min-width: 0.05em; /* prevent layout shift on narrow chars */
}

.page-title--animating .hero-char--scrambling {
  font-family: var(--font-mono);
  opacity: 0.6;
}

.page-title--animating .hero-char--settled {
  font-family: var(--font-sans);
  animation: decipher-char 150ms var(--ease-out) forwards;
}

/* Subtitle fade + slide */
.page-subtitle--animating {
  opacity: 0;
  transform: translateY(8px);
}

.page-subtitle--visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 400ms var(--ease-out), transform 400ms var(--ease-out);
}

/* Spec card stagger */
.spec-card--animating {
  opacity: 0;
  transform: translateY(8px);
}

.spec-card--visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 500ms var(--ease-out), transform 500ms var(--ease-out);
}

@keyframes decipher-char {
  from { opacity: 0.6; }
  to { opacity: 1; }
}

/* ---- Overview Component Cards ---- */
.overview-card {
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-subtle);
  text-decoration: none;
  overflow: hidden;
  transition: border-color 0.15s, background 0.15s, box-shadow 0.15s;
}

.overview-card:hover {
  border-color: var(--color-border-default);
  background: var(--color-overlay);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.overview-card__preview {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 80px;
  padding: var(--sp-3);
  pointer-events: none;
  overflow: hidden;
  background: var(--color-bg-inset);
}

.overview-card__label {
  display: block;
  padding: var(--sp-2) var(--sp-3);
  font-size: var(--text-sm-size);
  color: var(--color-text-primary);
  border-top: 1px solid var(--color-border-subtle);
}