/* Device Rescue — landing page styles
   Calm, reassuring, trustworthy. Supports light + dark via prefers-color-scheme. */

:root {
  --bg: #f6f4ef;
  --bg-raised: #ffffff;
  --text: #23271f;
  --text-muted: #565b4f;
  --accent: #2f6f4f;
  --accent-strong: #24583f;
  --accent-contrast: #ffffff;
  --border: #e0ddd2;
  --safety-bg: #eef4ea;
  --safety-border: #cfe0c4;
  --card-shadow: 0 1px 2px rgba(35, 39, 31, 0.06), 0 6px 20px rgba(35, 39, 31, 0.05);
  --code-bg: #edeadf;
  --disabled-bg: #e7e4d9;
  --disabled-text: #8b8a7c;
  --link: #2f6f4f;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #171a15;
    --bg-raised: #1f231b;
    --text: #ecebe3;
    --text-muted: #b5b8a9;
    --accent: #6fbf8c;
    --accent-strong: #86d1a3;
    --accent-contrast: #10150f;
    --border: #33392b;
    --safety-bg: #1e2a1c;
    --safety-border: #35462f;
    --card-shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.35);
    --code-bg: #262b1f;
    --disabled-bg: #262b1f;
    --disabled-text: #6d7365;
    --link: #86d1a3;
  }
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: light dark;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

h1, h2, h3 {
  font-family: Georgia, "Iowan Old Style", "Palatino Linotype", serif;
  line-height: 1.2;
  color: var(--text);
  letter-spacing: -0.01em;
}

a {
  color: var(--link);
}

/* Header */

.site-header {
  padding: 1.5rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--text);
  font-weight: 600;
  font-size: 1.05rem;
}

.brand-mark {
  color: var(--accent);
  font-size: 1.2rem;
}

/* Hero */

.hero {
  padding: 2.5rem 0 3rem;
}

.hero h1 {
  font-size: clamp(2rem, 4vw + 1rem, 2.75rem);
  margin: 0 0 0.75rem;
}

.pitch {
  font-size: 1.2rem;
  color: var(--text-muted);
  max-width: 42rem;
  margin: 0 0 2rem;
}

.safety-note {
  display: flex;
  gap: 0.9rem;
  align-items: flex-start;
  background: var(--safety-bg);
  border: 1px solid var(--safety-border);
  border-radius: 14px;
  padding: 1.1rem 1.25rem;
  margin-bottom: 2rem;
  max-width: 42rem;
}

.safety-icon {
  font-size: 1.4rem;
  line-height: 1;
  margin-top: 0.1rem;
}

.safety-note strong {
  display: block;
  margin-bottom: 0.3rem;
  font-size: 1.02rem;
}

.safety-note p {
  margin: 0;
  color: var(--text-muted);
}

/* Downloads */

.downloads {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-bottom: 1.1rem;
}

.download-help {
  font-size: 0.95rem;
  line-height: 1.6;
  margin: 0 0 1.5rem;
  opacity: 0.85;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  border-radius: 12px;
  padding: 0.85rem 1.3rem;
  text-decoration: none;
  font: inherit;
  cursor: pointer;
  border: 1px solid transparent;
  box-shadow: var(--card-shadow);
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

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

.btn-primary:hover {
  background: var(--accent-strong);
}

.btn-disabled {
  background: var(--disabled-bg);
  color: var(--disabled-text);
  cursor: not-allowed;
  box-shadow: none;
}

.btn-disabled:hover {
  transform: none;
}

.btn-icon {
  font-size: 1.3rem;
}

.btn-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1.25;
}

.btn-title {
  font-weight: 600;
  font-size: 1rem;
}

.btn-sub {
  font-size: 0.8rem;
  opacity: 0.85;
}

.fine-print {
  color: var(--text-muted);
  font-size: 0.92rem;
  max-width: 42rem;
  margin: 0;
}

/* How it works */

.how-it-works {
  padding: 2.5rem 0;
  border-top: 1px solid var(--border);
}

.how-it-works h2,
.walkthrough h2,
.requirements h2 {
  font-size: 1.6rem;
  margin: 0 0 1.5rem;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.step-card {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.3rem;
  box-shadow: var(--card-shadow);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.9rem;
  height: 1.9rem;
  border-radius: 50%;
  background: var(--safety-bg);
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.step-card h3 {
  font-size: 1.05rem;
  margin: 0 0 0.4rem;
}

.step-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Walkthrough */

.walkthrough {
  padding: 2.5rem 0;
  border-top: 1px solid var(--border);
}

.section-lede {
  color: var(--text-muted);
  max-width: 42rem;
  margin: -0.75rem 0 1.5rem;
}

.os-tabs {
  display: inline-flex;
  gap: 0.35rem;
  padding: 0.3rem;
  background: var(--code-bg);
  border-radius: 999px;
  margin-bottom: 1.5rem;
}

.os-tab {
  font: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  border: none;
  background: transparent;
  color: var(--text-muted);
  padding: 0.5rem 1.1rem;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.12s ease, color 0.12s ease;
}

.os-tab.is-active {
  background: var(--bg-raised);
  color: var(--text);
  box-shadow: var(--card-shadow);
}

.permissions-content .loading,
.permissions-content .error,
.permissions-content .empty {
  color: var(--text-muted);
}

.permission-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.permission-step {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.2rem 1.4rem;
  box-shadow: var(--card-shadow);
}

.permission-step-title {
  font-size: 1.02rem;
  margin: 0 0 0.4rem;
}

.permission-step-body {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.permission-step-action {
  display: inline-block;
  margin-top: 0.75rem;
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--accent);
  border: 1px solid var(--safety-border);
  background: var(--safety-bg);
  border-radius: 8px;
  padding: 0.45rem 0.85rem;
}

.permission-step-action:hover {
  border-color: var(--accent);
}

/* Site nav */

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-nav {
  display: flex;
  gap: 1.5rem;
}

.site-nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
}

.site-nav a:hover {
  color: var(--text);
}

/* Secondary button */

.btn-secondary {
  background: var(--bg-raised);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* Situations */

.situations {
  padding: 2.5rem 0;
  border-top: 1px solid var(--border);
}

.situations h2 {
  font-size: 1.6rem;
  margin: 0 0 0.5rem;
}

.situation-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.situation-card {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.3rem;
  box-shadow: var(--card-shadow);
}

.situation-icon {
  font-size: 1.5rem;
  display: block;
  margin-bottom: 0.5rem;
}

.situation-card h3 {
  font-size: 1rem;
  margin: 0 0 0.4rem;
}

.situation-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Rescue Stick */

.rescue-stick {
  padding: 3rem 0;
  border-top: 1px solid var(--border);
  background: var(--safety-bg);
}

.rescue-stick h2 {
  font-size: 1.6rem;
  margin: 0 0 1.5rem;
}

.stick-layout {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 2.5rem;
  align-items: start;
}

.stick-pitch {
  font-size: 1.1rem;
  margin: 0 0 1rem;
}

.stick-features {
  padding-left: 1.2rem;
  margin: 0 0 1rem;
  color: var(--text-muted);
}

.stick-features li {
  margin-bottom: 0.4rem;
  font-size: 0.95rem;
}

.stick-use-case {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin: 0 0 1.5rem;
}

.stick-cta {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.stick-price {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin: 0;
}

.stick-contents h3 {
  font-size: 1.05rem;
  margin: 0 0 0.75rem;
}

.stick-tree {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem 1.25rem;
  font-size: 0.85rem;
  line-height: 1.5;
  overflow-x: auto;
  margin: 0 0 0.75rem;
}

.stick-contents-note {
  color: var(--text-muted);
  font-size: 0.88rem;
  margin: 0;
}

.stick-contents-note code {
  background: var(--code-bg);
  padding: 0.15em 0.35em;
  border-radius: 4px;
  font-size: 0.9em;
}

/* Security Tools */

.tools-section {
  padding: 2.5rem 0;
  border-top: 1px solid var(--border);
}

.tools-section h2 {
  font-size: 1.6rem;
  margin: 0 0 0.5rem;
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-bottom: 1.25rem;
}

.tool-card {
  display: block;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.3rem;
  box-shadow: var(--card-shadow);
  text-decoration: none;
  color: var(--text);
  transition: transform 0.12s ease, box-shadow 0.12s ease, border-color 0.12s ease;
}

.tool-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
}

.tool-icon {
  font-size: 1.5rem;
  display: block;
  margin-bottom: 0.5rem;
}

.tool-card h3 {
  font-size: 1rem;
  margin: 0 0 0.4rem;
  color: var(--accent);
}

.tool-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.tools-more {
  color: var(--text-muted);
  font-size: 0.92rem;
}

/* Requirements */

.requirements {
  padding: 2.5rem 0 3rem;
  border-top: 1px solid var(--border);
}

.req-list {
  color: var(--text-muted);
  max-width: 42rem;
  padding-left: 1.2rem;
  margin: 0;
}

.req-list li {
  margin-bottom: 0.5rem;
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0 3rem;
}

.site-footer p {
  color: var(--text-muted);
  font-size: 0.88rem;
  margin: 0;
}

/* Responsive */

@media (max-width: 720px) {
  .site-header .wrap {
    flex-direction: column;
    gap: 0.75rem;
    align-items: flex-start;
  }

  .steps,
  .situation-grid,
  .tools-grid {
    grid-template-columns: 1fr;
  }

  .stick-layout {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .downloads {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    justify-content: center;
  }
}

@media (min-width: 721px) and (max-width: 960px) {
  .situation-grid,
  .tools-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}