/**
 * SecureMail v2 — English LP exclusive stylesheet
 *
 * Loaded AFTER style.css. Completely self-contained:
 *   - Own CSS variables for light / dark mode
 *   - Overrides of shared classes scoped to the EN landing page
 *   - New components (hero grid, code window, logo bar, mini-cta, faq)
 */

/* ================================================================
   CSS variables (light / dark)
   ================================================================ */

/* Default light */
:root {
  --color-bg:           #fafafa;
  --color-surface:      #fff;
  --color-text:         #222;
  --color-heading:      #1a3a6e;
  --color-muted:        #666;
  --color-border:       #e0e0e0;
  --color-accent:       #1a6ee0;
  --color-accent-hover: #155cbb;
  --color-hero-bg:      linear-gradient(180deg, #f4f8fd 0%, #fafafa 100%);
  --color-alt-bg:       #f4f6fa;
  --color-card-border:  #e0e6ef;
  --color-card-shadow:  rgba(26, 58, 110, 0.08);
  --color-input-bg:     #fff;
  --color-input-border: #c4c4c4;
}

/* OS dark preference */
@media (prefers-color-scheme: dark) {
  :root {
    --color-bg:           #0d1117;
    --color-surface:      #161b22;
    --color-text:         #c9d1d9;
    --color-heading:      #58a6ff;
    --color-muted:        #8b949e;
    --color-border:       #30363d;
    --color-accent:       #58a6ff;
    --color-accent-hover: #79b8ff;
    --color-hero-bg:      linear-gradient(180deg, #010409 0%, #0d1117 100%);
    --color-alt-bg:       #161b22;
    --color-card-border:  #30363d;
    --color-card-shadow:  rgba(0, 0, 0, 0.35);
    --color-input-bg:     #0d1117;
    --color-input-border: #30363d;
  }
}

/* Manual overrides (higher specificity than :root) */
html[data-theme="dark"] {
  --color-bg:           #0d1117;
  --color-surface:      #161b22;
  --color-text:         #c9d1d9;
  --color-heading:      #58a6ff;
  --color-muted:        #8b949e;
  --color-border:       #30363d;
  --color-accent:       #58a6ff;
  --color-accent-hover: #79b8ff;
  --color-hero-bg:      linear-gradient(180deg, #010409 0%, #0d1117 100%);
  --color-alt-bg:       #161b22;
  --color-card-border:  #30363d;
  --color-card-shadow:  rgba(0, 0, 0, 0.35);
  --color-input-bg:     #0d1117;
  --color-input-border: #30363d;
}

html[data-theme="light"] {
  --color-bg:           #fafafa;
  --color-surface:      #fff;
  --color-text:         #222;
  --color-heading:      #1a3a6e;
  --color-muted:        #666;
  --color-border:       #e0e0e0;
  --color-accent:       #1a6ee0;
  --color-accent-hover: #155cbb;
  --color-hero-bg:      linear-gradient(180deg, #f4f8fd 0%, #fafafa 100%);
  --color-alt-bg:       #f4f6fa;
  --color-card-border:  #e0e6ef;
  --color-card-shadow:  rgba(26, 58, 110, 0.08);
  --color-input-bg:     #fff;
  --color-input-border: #c4c4c4;
}

/* ================================================================
   Overrides of shared style.css classes
   ================================================================ */

body {
  color: var(--color-text);
  background: var(--color-bg);
}

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

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

.page {
  max-width: 1100px;
}

.site-header {
  background: var(--color-surface);
  border-bottom-color: var(--color-border);
}

.site-footer {
  background: var(--color-surface);
  border-top-color: var(--color-border);
}

/* Buttons */
.btn {
  background: var(--color-accent);
  border-radius: 6px;
  transition: background 150ms ease, transform 120ms ease;
}

.btn:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
}

.btn--secondary {
  background: var(--color-surface);
  color: var(--color-accent);
  border-color: var(--color-input-border);
}

.btn--secondary:hover {
  background: var(--color-alt-bg);
}

/* Forms */
.form__input,
.form__textarea,
.form__select {
  background: var(--color-input-bg);
  border-color: var(--color-input-border);
}

.form__input:focus,
.form__textarea:focus,
.form__select:focus {
  outline-color: var(--color-accent);
  border-color: var(--color-accent);
}

/* Alerts (light defaults) */
.alert--info {
  background: #e7f1fd;
  border-color: #b9d6f5;
  color: #0d4f9a;
}

.alert--success {
  background: #e7f5ea;
  border-color: #a6d8b4;
  color: #1e6b35;
}

.alert--error {
  background: #fbe9e7;
  border-color: #f2b7b0;
  color: #a61b1b;
}

/* Alerts (OS dark) */
@media (prefers-color-scheme: dark) {
  .alert--info {
    background: rgba(88, 166, 255, 0.12);
    border-color: rgba(88, 166, 255, 0.25);
    color: #79b8ff;
  }
  .alert--success {
    background: rgba(46, 160, 67, 0.12);
    border-color: rgba(46, 160, 67, 0.25);
    color: #3fb950;
  }
  .alert--error {
    background: rgba(248, 81, 73, 0.12);
    border-color: rgba(248, 81, 73, 0.25);
    color: #f85149;
  }
}

/* Alerts (manual dark override) */
html[data-theme="dark"] .alert--info {
  background: rgba(88, 166, 255, 0.12);
  border-color: rgba(88, 166, 255, 0.25);
  color: #79b8ff;
}
html[data-theme="dark"] .alert--success {
  background: rgba(46, 160, 67, 0.12);
  border-color: rgba(46, 160, 67, 0.25);
  color: #3fb950;
}
html[data-theme="dark"] .alert--error {
  background: rgba(248, 81, 73, 0.12);
  border-color: rgba(248, 81, 73, 0.25);
  color: #f85149;
}

/* Alerts (manual light override) */
html[data-theme="light"] .alert--info {
  background: #e7f1fd;
  border-color: #b9d6f5;
  color: #0d4f9a;
}
html[data-theme="light"] .alert--success {
  background: #e7f5ea;
  border-color: #a6d8b4;
  color: #1e6b35;
}
html[data-theme="light"] .alert--error {
  background: #fbe9e7;
  border-color: #f2b7b0;
  color: #a61b1b;
}

/* Hero */
.hero {
  background: var(--color-hero-bg);
  border-bottom-color: var(--color-border);
}

.hero__title {
  color: var(--color-heading);
}

.hero__subtitle {
  color: var(--color-text);
}

.stat-badge {
  background: var(--color-surface);
  border-color: var(--color-card-border);
  color: var(--color-heading);
}

/* Sections */
.section--alt {
  background: var(--color-alt-bg);
  border-top-color: var(--color-border);
  border-bottom-color: var(--color-border);
}

.section__heading {
  color: var(--color-heading);
}

/* Feature cards */
.feature-card {
  background: var(--color-surface);
  border-color: var(--color-card-border);
}

.feature-card:hover {
  box-shadow: 0 4px 12px var(--color-card-shadow);
}

.feature-card__icon {
  color: var(--color-accent);
}

.feature-card__title {
  color: var(--color-text);
}

.feature-card__desc {
  color: var(--color-muted);
}

/* How it works */
.how-step {
  background: var(--color-surface);
  border-color: var(--color-card-border);
}

.how-step__num {
  background: var(--color-accent);
}

.how-step__icon {
  color: var(--color-accent);
}

.how-step__desc {
  color: var(--color-muted);
}

/* Tabs */
.tabs {
  border-bottom-color: var(--color-border);
}

.tabs__item {
  color: var(--color-muted);
}

.tabs__item--active {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

/* Message view */
.message-meta {
  background: var(--color-surface);
  border-color: var(--color-border);
}

.message-body {
  background: var(--color-surface);
  border-color: var(--color-border);
}

/* Footer */
.footer-nav a {
  color: var(--color-muted);
}

.footer-meta {
  color: var(--color-muted);
}

/* ================================================================
   Theme toggle button
   ================================================================ */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  cursor: pointer;
  color: var(--color-text);
  font-size: 1.1rem;
  line-height: 1;
  transition: border-color 150ms ease, background 150ms ease;
}

.theme-toggle:hover {
  background: var(--color-alt-bg);
  border-color: var(--color-accent);
}

/* ================================================================
   EN LP specific new components
   ================================================================ */

/* ---------- Hero refactor ---------- */
.hero--en {
  padding: 3rem 0 3.5rem;
  text-align: left;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}

@media (min-width: 860px) {
  .hero__grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 3rem;
  }
}

.hero--en .hero__title {
  font-size: clamp(1.75rem, 4vw + 0.5rem, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 1rem;
}

.hero--en .hero__subtitle {
  font-size: 1.15rem;
  color: var(--color-muted);
  max-width: none;
  margin: 0 0 1.5rem;
  line-height: 1.65;
}

/* Hero micro-form */
.hero__form {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.hero__form input[type="email"] {
  flex: 1 1 220px;
  padding: 0.65rem 0.9rem;
  font: inherit;
  font-size: 1rem;
  color: inherit;
  background: var(--color-input-bg);
  border: 1px solid var(--color-input-border);
  border-radius: 6px;
  min-height: 44px;
}

.hero__form input[type="email"]:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 0;
  border-color: var(--color-accent);
}

.hero__form .btn {
  flex: 1 1 160px;
  padding: 0.65rem 1.25rem;
  font-size: 1rem;
}

.hero__trust {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.85rem;
  color: var(--color-muted);
}

.hero__avatars {
  display: inline-flex;
}

.hero__avatars span {
  display: inline-block;
  width: 28px;
  height: 28px;
  line-height: 28px;
  text-align: center;
  border-radius: 50%;
  background: var(--color-alt-bg);
  border: 2px solid var(--color-surface);
  font-size: 0.75rem;
  margin-left: -10px;
}

.hero__avatars span:first-child {
  margin-left: 0;
}

/* ---------- Code window visual ---------- */
.code-window {
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: 10px;
  box-shadow: 0 12px 40px var(--color-card-shadow);
  overflow: hidden;
  max-width: 420px;
  margin: 0 auto;
  transform: rotate(1deg);
  transition: transform 200ms ease;
}

.code-window:hover {
  transform: rotate(0deg);
}

.code-window__header {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.6rem 0.9rem;
  background: var(--color-alt-bg);
  border-bottom: 1px solid var(--color-card-border);
}

.code-window__header span:nth-child(1),
.code-window__header span:nth-child(2),
.code-window__header span:nth-child(3) {
  display: block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.code-window__header span:nth-child(1) { background: #ff5f57; }
.code-window__header span:nth-child(2) { background: #febc2e; }
.code-window__header span:nth-child(3) { background: #28c840; }

.code-window__header span:nth-child(4) {
  margin-left: auto;
  font-size: 0.75rem;
  color: var(--color-muted);
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

.code-window__body {
  padding: 1rem 1.2rem;
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--color-text);
}

.code-window__body .kw  { color: var(--color-accent); }

/* Default syntax colours (light mode) */
.code-window__body .tag { color: #d1242f; }
.code-window__body .str { color: #0d7377; }

/* OS dark */
@media (prefers-color-scheme: dark) {
  .code-window__body .tag { color: #f85149; }
  .code-window__body .str { color: #3fb950; }
}

/* Manual overrides */
html[data-theme="dark"] .code-window__body .tag { color: #f85149; }
html[data-theme="dark"] .code-window__body .str { color: #3fb950; }
html[data-theme="light"] .code-window__body .tag { color: #d1242f; }
html[data-theme="light"] .code-window__body .str { color: #0d7377; }

/* ---------- Logo bar ---------- */
.logo-bar {
  text-align: center;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
}

.logo-bar p {
  margin: 0;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-muted);
  letter-spacing: 0.02em;
}

.logo-bar strong {
  color: var(--color-heading);
}

/* ---------- Mini CTA banner ---------- */
.mini-cta {
  text-align: center;
  padding: 2.5rem 1rem;
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: 12px;
  max-width: 720px;
  margin: 0 auto;
}

.mini-cta__title {
  font-size: 1.4rem;
  margin: 0 0 0.5rem;
  color: var(--color-heading);
}

.mini-cta__lead {
  color: var(--color-muted);
  margin: 0 0 1.25rem;
}

/* ---------- FAQ ---------- */
.faq {
  max-width: 720px;
  margin: 0 auto;
}

.faq__item {
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: 8px;
  margin-bottom: 0.75rem;
  overflow: hidden;
}

.faq__question {
  padding: 1rem 1.25rem;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  color: var(--color-text);
}

.faq__question::-webkit-details-marker {
  display: none;
}

.faq__question::after {
  content: '+';
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--color-accent);
  flex-shrink: 0;
}

.faq__item[open] .faq__question::after {
  content: '−';
}

.faq__answer {
  padding: 0 1.25rem 1rem;
  color: var(--color-muted);
  font-size: 0.95rem;
  line-height: 1.65;
  margin: 0;
}

/* ---------- Hero tagline badges ---------- */
.hero__tagline {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.5rem;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  background: var(--color-alt-bg);
  color: var(--color-muted);
  border: 1px solid var(--color-card-border);
}

.tag--highlight {
  background: rgba(26, 110, 224, 0.1);
  color: var(--color-accent);
  border-color: rgba(26, 110, 224, 0.25);
}

@media (prefers-color-scheme: dark) {
  .tag--highlight {
    background: rgba(88, 166, 255, 0.12);
    border-color: rgba(88, 166, 255, 0.25);
  }
}

html[data-theme="dark"] .tag--highlight {
  background: rgba(88, 166, 255, 0.12);
  border-color: rgba(88, 166, 255, 0.25);
}

html[data-theme="light"] .tag--highlight {
  background: rgba(26, 110, 224, 0.1);
  border-color: rgba(26, 110, 224, 0.25);
}

/* ---------- No-catch banner ---------- */
.no-catch {
  text-align: center;
  padding: 2rem 1.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: 12px;
  max-width: 800px;
  margin: 0 auto;
}

.no-catch__label {
  margin: 0 0 0.75rem;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-heading);
  letter-spacing: -0.01em;
}

.no-catch__label .ti {
  color: var(--color-accent);
  font-size: 1.25em;
  vertical-align: -0.15em;
}

.no-catch__body {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.95rem;
  line-height: 1.7;
  max-width: 52em;
  margin-left: auto;
  margin-right: auto;
}

.no-catch__body strong {
  color: var(--color-text);
}

/* ---------- Entrance animations ---------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 400ms ease, transform 400ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}