/* whis landing page - terminal-native minimalism */

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

/* Design Tokens - Dark theme (default and only) */
:root {
  /* Colors */
  --color-background: hsl(0, 0%, 7%);
  --color-background-weak: hsl(0, 0%, 11%);
  --color-background-weak-hover: hsl(0, 0%, 16%);
  --color-background-strong: hsl(0, 0%, 100%);
  --color-background-strong-hover: hsl(0, 0%, 90%);
  --color-background-interactive: hsl(48, 100%, 65%);

  --color-text: hsl(0, 0%, 80%);
  --color-text-weak: hsl(0, 0%, 62%);
  --color-text-strong: hsl(0, 0%, 100%);
  --color-text-inverted: hsl(0, 0%, 7%);

  --color-border: hsl(0, 0%, 28%);
  --color-border-weak: hsl(0, 0%, 24%);

  --color-icon: hsl(0, 0%, 55%);
  --color-accent: hsl(48, 100%, 60%);

  /* Layout */
  --padding: 5rem;
  --vertical-padding: 4rem;
  --max-width: 56rem;

  /* Typography */
  --font-mono: "JetBrains Mono", "Fira Code", "SF Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --font-size-base: 15px;
  --line-height: 1.7;

  /* Force dark color scheme */
  color-scheme: dark;
}

/* Responsive */
@media (max-width: 60rem) {
  :root {
    --padding: 2rem;
    --vertical-padding: 3rem;
  }
}

@media (max-width: 30rem) {
  :root {
    --padding: 1.25rem;
    --vertical-padding: 2rem;
  }
}

/* Base */
html {
  font-size: var(--font-size-base);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-mono);
  line-height: var(--line-height);
  background: var(--color-background);
  color: var(--color-text);
  min-height: 100vh;
}

/* Selection */
::selection {
  background: var(--color-background-interactive);
  color: var(--color-text-strong);
}

/* Links */
a {
  color: var(--color-text-strong);
  text-decoration: underline;
  text-underline-offset: 0.2em;
  text-decoration-thickness: 1px;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--color-accent);
}

/* Container */
[data-page="whis"] {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

[data-component="container"] {
  max-width: var(--max-width);
  width: 100%;
  margin: 0 auto;
  border-left: 1px solid var(--color-border-weak);
  border-right: 1px solid var(--color-border-weak);

  @media (max-width: 60rem) {
    border-left: none;
    border-right: none;
  }
}

/* ===================
   HERO SECTION
   =================== */
[data-component="hero"] {
  padding: calc(var(--vertical-padding) * 1.5) var(--padding);
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

[data-slot="wordmark"] {
  font-family: var(--font-mono);
  font-size: clamp(2.5rem, 8vw, 4rem);
  font-weight: 700;
  color: var(--color-text-strong);
  letter-spacing: -0.03em;
  display: block;
}

[data-slot="hero-copy"] h1 {
  font-size: clamp(1.75rem, 5vw, 2.5rem);
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

[data-slot="hero-copy"] p {
  font-size: 1rem;
  color: var(--color-text);
  max-width: 32rem;
}

[data-slot="hero-cta"] {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

[data-slot="cta-primary"] {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  background: var(--color-background-strong);
  color: var(--color-text-inverted);
  text-decoration: none;
  font-weight: 500;
  border-radius: 4px;
  transition: background 0.15s ease;
}

[data-slot="cta-primary"]:hover {
  background: var(--color-background-strong-hover);
  color: var(--color-text-inverted);
}

[data-slot="cta-secondary"] {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  background: transparent;
  color: var(--color-text-strong);
  text-decoration: none;
  font-weight: 500;
  border: 1px solid var(--color-text-weak);
  border-radius: 4px;
  transition: background 0.15s ease, border-color 0.15s ease;
}

[data-slot="cta-secondary"]:hover {
  background: var(--color-background-weak);
  border-color: var(--color-text-strong);
  color: var(--color-text-strong);
}

/* ===================
   INSTALL SECTION
   =================== */
[data-component="install"] {
  border-top: 1px solid var(--color-border-weak);
  padding: var(--vertical-padding) var(--padding);
}

[data-component="tabs"] {
  width: 100%;
}

[data-slot="tablist"] {
  display: flex;
  gap: 2rem;
  border-bottom: 1px solid var(--color-border-weak);
  margin-bottom: 0;
}

[data-slot="tab"] {
  appearance: none;
  background: transparent;
  border: none;
  padding: 0.75rem 0.25rem;
  font-family: inherit;
  font-size: 0.9rem;
  color: var(--color-text-weak);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color 0.15s ease, border-color 0.15s ease;
}

[data-slot="tab"]:hover {
  color: var(--color-text-strong);
}

[data-slot="tab"][aria-selected="true"] {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
  font-weight: 500;
}

[data-slot="panels"] {
  background: var(--color-background-weak);
  border: 1px solid var(--color-border-weak);
  border-top: none;
  border-radius: 0 0 6px 6px;
  padding: 1rem 1.5rem 1rem 1rem;
}

[data-slot="panel"] {
  display: block;
}

[data-slot="panel"][hidden] {
  display: none;
}

[data-slot="command"] {
  all: unset;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: 100%;
  padding: 0.5rem 0.75rem;
  border-radius: 4px;
  cursor: pointer;
  transition: background 0.15s ease;
}

[data-slot="command"]:hover [data-component="copy-status"] svg {
  color: var(--color-text-strong);
}

[data-slot="command"] code {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

[data-slot="prefix"] {
  color: var(--color-text-weak);
}

[data-slot="highlight"] {
  color: var(--color-text-strong);
  font-weight: 500;
}

[data-component="copy-status"] {
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

[data-component="copy-status"] svg {
  color: var(--color-icon);
}

[data-component="copy-status"] [data-slot="copy"] {
  display: block;
}

[data-component="copy-status"] [data-slot="check"] {
  display: none;
  color: var(--color-accent);
}

[data-copied] [data-component="copy-status"] [data-slot="copy"] {
  display: none;
}

[data-copied] [data-component="copy-status"] [data-slot="check"] {
  display: block;
}

/* ===================
   FEATURES SECTION
   =================== */
[data-component="features"] {
  border-top: 1px solid var(--color-border-weak);
  padding: var(--vertical-padding) var(--padding);
}

[data-slot="section-header"] {
  margin-bottom: 2rem;
}

[data-slot="section-header"] h2 {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--color-text-strong);
  margin-bottom: 0.5rem;
}

[data-slot="section-header"] p {
  color: var(--color-text);
}

[data-component="features"] ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

[data-component="features"] li {
  display: flex;
  gap: 0.75rem;
  line-height: 1.6;
}

[data-slot="marker"] {
  color: var(--color-icon);
  flex-shrink: 0;
}

[data-component="features"] li strong {
  color: var(--color-text-strong);
  font-weight: 500;
  margin-right: 0.5rem;
}

/* ===================
   DEMO SECTION
   =================== */
[data-component="demo"] {
  border-top: 1px solid var(--color-border-weak);
  padding: var(--vertical-padding) var(--padding);
}

[data-component="demo"] figure {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

[data-component="demo"] img {
  width: 100%;
  height: auto;
  border-radius: 6px;
  border: 1px solid var(--color-border-weak);
}

[data-component="demo"] figcaption {
  font-size: 0.85rem;
  color: var(--color-text-weak);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ===================
   QUICK START SECTION
   =================== */
[data-component="quickstart"] {
  border-top: 1px solid var(--color-border-weak);
  padding: var(--vertical-padding) var(--padding);
}

[data-component="quickstart"] h2 {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--color-text-strong);
  margin-bottom: 1.5rem;
}

[data-component="quickstart"] pre {
  background: var(--color-background-weak);
  border: 1px solid var(--color-border-weak);
  border-radius: 6px;
  padding: 1.5rem;
  overflow-x: auto;
}

[data-component="quickstart"] code {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1.8;
}

[data-slot="comment"] {
  color: var(--color-text-weak);
}

[data-slot="command"] {
  color: var(--color-text);
}

[data-slot="var"] {
  color: var(--color-accent);
}

[data-component="quickstart"] [data-slot="highlight"] {
  color: var(--color-text-strong);
  font-weight: 500;
}

/* ===================
   FAQ SECTION
   =================== */
[data-component="faq"] {
  border-top: 1px solid var(--color-border-weak);
  padding: var(--vertical-padding) var(--padding);
}

[data-component="faq"] h2 {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--color-text-strong);
  margin-bottom: 1.5rem;
}

[data-component="faq"] > ul {
  list-style: none;
  display: flex;
  flex-direction: column;
}

[data-component="faq-item"] {
  border-bottom: 1px solid var(--color-border-weak);
}

[data-component="faq-item"]:last-child {
  border-bottom: none;
}

[data-slot="faq-question"] {
  all: unset;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  width: 100%;
  padding: 1rem 0;
  cursor: pointer;
  color: var(--color-text-strong);
  font-weight: 500;
  transition: color 0.15s ease;
}

[data-slot="faq-question"]:hover {
  color: var(--color-text-strong);
}

[data-slot="faq-question"]:hover [data-slot="faq-icon-plus"],
[data-slot="faq-question"]:hover [data-slot="faq-icon-minus"] {
  color: var(--color-accent);
}

[data-slot="faq-icon-plus"],
[data-slot="faq-icon-minus"] {
  flex-shrink: 0;
  width: 1rem;
  text-align: center;
  color: var(--color-icon);
  font-weight: 400;
}

/* FAQ closed state */
[data-component="faq-item"][data-closed] [data-slot="faq-icon-plus"] {
  display: inline;
}

[data-component="faq-item"][data-closed] [data-slot="faq-icon-minus"] {
  display: none;
}

[data-component="faq-item"][data-closed] [data-slot="faq-answer"] {
  display: none;
}

/* FAQ expanded state */
[data-component="faq-item"][data-expanded] [data-slot="faq-icon-plus"] {
  display: none;
}

[data-component="faq-item"][data-expanded] [data-slot="faq-icon-minus"] {
  display: inline;
}

[data-component="faq-item"][data-expanded] [data-slot="faq-answer"] {
  display: block;
}

[data-slot="faq-answer"] {
  padding: 0 0 1rem 2rem;
  color: var(--color-text);
}

[data-slot="faq-answer"] code {
  background: var(--color-background-weak);
  padding: 0.15em 0.4em;
  border-radius: 3px;
  font-size: 0.9em;
}

/* ===================
   FOOTER
   =================== */
[data-component="footer"] {
  border-top: 1px solid var(--color-border-weak);
  display: flex;
  flex-wrap: wrap;
  margin-top: auto;
}

[data-component="footer"] [data-slot="cell"] {
  flex: 1;
  min-width: 0;
  padding: 1.25rem var(--padding);
  text-align: center;
  border-right: 1px solid var(--color-border-weak);
  font-size: 0.9rem;
}

[data-component="footer"] [data-slot="cell"]:last-child {
  border-right: none;
}

[data-component="footer"] [data-slot="cell"] a {
  text-decoration: none;
}

[data-component="footer"] [data-slot="cell"] a:hover {
  text-decoration: underline;
}

[data-component="footer"] [data-slot="cell"] span {
  color: var(--color-text-weak);
}

@media (max-width: 40rem) {
  [data-component="footer"] {
    flex-direction: column;
  }

  [data-component="footer"] [data-slot="cell"] {
    border-right: none;
    border-bottom: 1px solid var(--color-border-weak);
    padding: 1rem var(--padding);
  }

  [data-component="footer"] [data-slot="cell"]:last-child {
    border-bottom: none;
  }
}

/* ===================
   UTILITIES
   =================== */
@media (max-width: 30rem) {
  [data-slot="command"] code {
    font-size: 0.8rem;
  }
}

/* Smooth scroll */
html {
  scroll-behavior: smooth;
}

/* Focus styles */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

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