/* ============================================================
   CMS Alpine — Website Stylesheet
   Design: Hana (typography/panel) + Lena (UI/UX)

   System: IBM Plex Sans / IBM Plex Mono
   Palette: #0a0a0a bg / #e0e0e0 primary / #888 secondary / #CC0000 accent
   Principle: No gradients. No shadows. No rounded corners. Sharp edges.
   ============================================================ */

/* --- Reset & Base ------------------------------------------ */

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

:root {
  --bg:          #0a0a0a;
  --bg-raised:   #111111;
  --bg-surface:  #181818;
  --text-primary: #e0e0e0;
  --text-secondary: #888888;
  --text-dim:    #555555;
  --accent:      #CC0000;
  --accent-dim:  #8a0000;
  --border:      #2a2a2a;
  --border-subtle: #1e1e1e;

  --font-sans: 'IBM Plex Sans', 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'IBM Plex Mono', 'Courier New', monospace;

  --spacing-xs:  0.25rem;
  --spacing-sm:  0.5rem;
  --spacing-md:  1rem;
  --spacing-lg:  2rem;
  --spacing-xl:  4rem;
  --spacing-2xl: 8rem;

  --max-width: 1080px;
  --nav-height: 56px;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  min-height: 100vh;
}

/* --- Typography -------------------------------------------- */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h3 { font-size: 1.25rem; }
h4 { font-size: 1rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; }

p {
  color: var(--text-secondary);
  max-width: 62ch;
}

p + p {
  margin-top: var(--spacing-md);
}

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

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

strong {
  color: var(--text-primary);
  font-weight: 600;
}

code, .mono {
  font-family: var(--font-mono);
  font-size: 0.875em;
  color: var(--text-secondary);
}

/* --- Layout helpers --------------------------------------- */

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.section {
  padding: var(--spacing-2xl) 0;
}

.section + .section {
  border-top: 1px solid var(--accent);
}

/* Red rule divider — used inline as a block element */
.rule-red {
  display: block;
  width: 100%;
  height: 1px;
  background-color: var(--accent);
  border: none;
  margin: var(--spacing-xl) 0;
}

.rule-subtle {
  display: block;
  width: 100%;
  height: 1px;
  background-color: var(--border);
  border: none;
  margin: var(--spacing-xl) 0;
}

/* --- Navigation ------------------------------------------- */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background-color: var(--bg);
  border-bottom: 1px solid var(--border);
  z-index: 100;
  display: flex;
  align-items: center;
}

.nav__inner {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__brand {
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
  text-decoration: none;
}

.nav__cms {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--accent);
}

.nav__dot {
  width: 5px;
  height: 5px;
  background-color: var(--accent);
  border-radius: 50%;
  display: inline-block;
  position: relative;
  top: -2px;
  margin: 0 1px;
}

.nav__alpine {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  color: var(--text-primary);
  text-transform: uppercase;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  list-style: none;
}

.nav__links a {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-secondary);
  transition: color 0.15s ease;
}

.nav__links a:hover,
.nav__links a.active {
  color: var(--text-primary);
}

/* Mobile nav toggle */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav__toggle span {
  display: block;
  width: 22px;
  height: 1px;
  background-color: var(--text-primary);
  transition: all 0.2s ease;
}

/* Page offset for fixed nav */
.page-body {
  padding-top: var(--nav-height);
}

/* --- Hero ------------------------------------------------- */

.hero {
  min-height: calc(100vh - var(--nav-height));
  display: flex;
  align-items: center;
  padding: var(--spacing-2xl) 0;
  border-bottom: 1px solid var(--accent);
}

.hero__inner {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.hero__label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--spacing-lg);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.hero__label::before {
  content: '';
  display: inline-block;
  width: 20px;
  height: 1px;
  background-color: var(--accent);
}

.hero__headline {
  font-size: clamp(2.25rem, 6vw, 4.5rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.05;
  color: var(--text-primary);
  margin-bottom: var(--spacing-lg);
  max-width: 14ch;
}

.hero__headline em {
  font-style: normal;
  color: var(--accent);
}

.hero__subhead {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 52ch;
  line-height: 1.65;
  margin-bottom: var(--spacing-xl);
}

.hero__actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  margin-bottom: var(--spacing-2xl);
}

.hero__render {
  margin-top: var(--spacing-xl);
}

/* --- Buttons ---------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 0.75rem 1.75rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
  /* No border-radius. Sharp corners. ThinkPad discipline. */
}

.btn--primary {
  background-color: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
}

.btn--primary:hover {
  background-color: var(--accent-dim);
  border-color: var(--accent-dim);
  color: #ffffff;
}

.btn--ghost {
  background-color: transparent;
  color: var(--text-secondary);
  border-color: var(--border);
}

.btn--ghost:hover {
  border-color: var(--text-secondary);
  color: var(--text-primary);
}

.btn--outline-accent {
  background-color: transparent;
  color: var(--accent);
  border-color: var(--accent);
}

.btn--outline-accent:hover {
  background-color: var(--accent);
  color: #ffffff;
}

/* --- Product render placeholder -------------------------- */

.render-placeholder {
  background-color: var(--bg-raised);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  position: relative;
  overflow: hidden;
}

.render-placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  border: 1px solid var(--accent);
  opacity: 0.15;
  pointer-events: none;
}

/* Subtle animated red glow pulse on the border */
.render-placeholder::after {
  content: '';
  position: absolute;
  inset: 0;
  border: 1px solid var(--accent);
  opacity: 0;
  pointer-events: none;
  animation: border-pulse 4s ease-in-out infinite;
}

@keyframes border-pulse {
  0%, 100% { opacity: 0; }
  50% { opacity: 0.25; }
}

.render-placeholder--hero {
  width: 100%;
  aspect-ratio: 16 / 7;
  max-height: 460px;
}

.render-placeholder--large {
  width: 100%;
  aspect-ratio: 16 / 7;
  max-height: 520px;
}

.render-placeholder--gallery {
  aspect-ratio: 4 / 3;
}

.render-placeholder__label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-dim);
  text-align: center;
}

.render-placeholder__sublabel {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  text-align: center;
}

/* The three red corner ticks on the placeholder */
.render-placeholder__corner {
  position: absolute;
  width: 14px;
  height: 14px;
}

.render-placeholder__corner--tl { top: 10px; left: 10px; border-top: 1px solid var(--accent); border-left: 1px solid var(--accent); }
.render-placeholder__corner--tr { top: 10px; right: 10px; border-top: 1px solid var(--accent); border-right: 1px solid var(--accent); }
.render-placeholder__corner--bl { bottom: 10px; left: 10px; border-bottom: 1px solid var(--accent); border-left: 1px solid var(--accent); }
.render-placeholder__corner--br { bottom: 10px; right: 10px; border-bottom: 1px solid var(--accent); border-right: 1px solid var(--accent); }

/* --- Feature pillars -------------------------------------- */

.pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--border);
}

.pillar {
  padding: var(--spacing-xl) var(--spacing-lg);
  border-right: 1px solid var(--border);
}

.pillar:last-child {
  border-right: none;
}

.pillar__number {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: var(--spacing-lg);
  display: block;
}

.pillar__title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
  letter-spacing: -0.01em;
}

.pillar__body {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: none;
}

/* --- Specs table ----------------------------------------- */

.specs-section {
  padding: var(--spacing-xl) 0;
}

.specs-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--spacing-lg);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.specs-label::before {
  content: '';
  display: inline-block;
  width: 20px;
  height: 1px;
  background-color: var(--accent);
}

.specs-table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--border);
}

.specs-table tr {
  border-bottom: 1px solid var(--border-subtle);
}

.specs-table tr:last-child {
  border-bottom: none;
}

.specs-table th {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  font-weight: 400;
  text-align: left;
  padding: 1rem 1.25rem;
  width: 220px;
  vertical-align: top;
  border-right: 1px solid var(--border-subtle);
  background-color: var(--bg-raised);
}

.specs-table td {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--text-primary);
  padding: 1rem 1.25rem;
  vertical-align: top;
}

.specs-table td .spec-note {
  display: block;
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-top: 0.25rem;
}

/* --- Feature blocks -------------------------------------- */

.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: start;
  padding: var(--spacing-xl) 0;
  border-bottom: 1px solid var(--border-subtle);
}

.feature-block:last-child {
  border-bottom: none;
}

.feature-block--reverse {
  direction: rtl;
}

.feature-block--reverse > * {
  direction: ltr;
}

.feature-block__tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--spacing-sm);
  display: block;
}

.feature-block__title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.feature-block__body {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.75;
  max-width: none;
}

.feature-block__list {
  list-style: none;
  margin-top: var(--spacing-md);
}

.feature-block__list li {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.feature-block__list li::before {
  content: '—';
  color: var(--accent);
  flex-shrink: 0;
}

.feature-block__list li:last-child {
  border-bottom: none;
}

/* --- Gallery grid ---------------------------------------- */

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background-color: var(--border);
}

.gallery-grid > * {
  background-color: var(--bg);
}

/* --- Notify / Email form --------------------------------- */

.notify-bar {
  background-color: var(--bg-raised);
  border-top: 1px solid var(--accent);
  border-bottom: 1px solid var(--border);
  padding: var(--spacing-xl) 0;
}

.notify-bar__inner {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-xl);
  flex-wrap: wrap;
}

.notify-bar__copy h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.notify-bar__copy p {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.notify-form {
  display: flex;
  gap: 0;
  flex-shrink: 0;
}

.notify-form__input {
  padding: 0.75rem 1rem;
  background-color: var(--bg);
  border: 1px solid var(--border);
  border-right: none;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  width: 240px;
  outline: none;
  transition: border-color 0.15s ease;
}

.notify-form__input::placeholder {
  color: var(--text-dim);
}

.notify-form__input:focus {
  border-color: var(--accent);
}

.notify-form__btn {
  padding: 0.75rem 1.25rem;
  background-color: var(--accent);
  color: #ffffff;
  border: 1px solid var(--accent);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background-color 0.15s ease;
  white-space: nowrap;
}

.notify-form__btn:hover {
  background-color: var(--accent-dim);
}

/* --- About / Story --------------------------------------- */

.story-section {
  max-width: 68ch;
}

.story-lead {
  font-size: 1.25rem;
  color: var(--text-primary);
  line-height: 1.65;
  font-weight: 400;
  margin-bottom: var(--spacing-lg);
  max-width: none;
}

.story-body {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: none;
}

.principles-list {
  list-style: none;
  margin-top: var(--spacing-xl);
  border-top: 1px solid var(--border);
}

.principles-list li {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: var(--spacing-lg);
  padding: var(--spacing-md) 0;
  border-bottom: 1px solid var(--border-subtle);
  align-items: start;
}

.principles-list li:last-child {
  border-bottom: none;
}

.principles-list .principle-name {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  padding-top: 0.15rem;
}

.principles-list .principle-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* --- Team grid ------------------------------------------- */

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 0;
  border-top: 1px solid var(--border);
  border-left: 1px solid var(--border);
}

.team-member {
  padding: var(--spacing-lg);
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.team-member__role {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--spacing-xs);
}

.team-member__name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.team-member__location {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-dim);
}

/* --- Section headers ------------------------------------- */

.section-header {
  margin-bottom: var(--spacing-xl);
}

.section-header__tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--spacing-sm);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.section-header__tag::before {
  content: '';
  display: inline-block;
  width: 20px;
  height: 1px;
  background-color: var(--accent);
}

.section-header__title {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  margin-bottom: var(--spacing-sm);
}

.section-header__body {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 58ch;
  line-height: 1.7;
}

/* --- Footer ---------------------------------------------- */

.footer {
  background-color: var(--bg);
  border-top: 1px solid var(--border);
  padding: var(--spacing-xl) 0;
}

.footer__inner {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.footer__brand {
  display: flex;
  align-items: baseline;
  gap: 0.3rem;
}

.footer__cms {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--accent);
}

.footer__alpine {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  color: var(--text-dim);
  text-transform: uppercase;
}

.footer__copy {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--text-dim);
}

.footer__links {
  display: flex;
  gap: var(--spacing-lg);
  list-style: none;
}

.footer__links a {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
  transition: color 0.15s ease;
}

.footer__links a:hover {
  color: var(--text-secondary);
}

/* --- Page headers (product, about) ----------------------- */

.page-header {
  padding: var(--spacing-xl) 0;
  border-bottom: 1px solid var(--accent);
}

.page-header__tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.page-header__tag::before {
  content: '';
  display: inline-block;
  width: 20px;
  height: 1px;
  background-color: var(--accent);
}

.page-header__title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.05;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
}

.page-header__sub {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  max-width: 56ch;
  line-height: 1.65;
}

/* --- Utility --------------------------------------------- */

.text-accent { color: var(--accent); }
.text-mono { font-family: var(--font-mono); }
.text-secondary { color: var(--text-secondary); }
.text-dim { color: var(--text-dim); }
.text-center { text-align: center; }

/* Horizontal scroll snap for narrow viewports */
.scroll-x {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

/* Accessible screen-reader-only text */
.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;
}

/* --- Responsive ------------------------------------------ */

@media (max-width: 900px) {
  :root {
    --spacing-xl: 3rem;
    --spacing-2xl: 5rem;
  }

  .pillars {
    grid-template-columns: 1fr;
  }

  .pillar {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }

  .pillar:last-child {
    border-bottom: none;
  }

  .feature-block {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .feature-block--reverse {
    direction: ltr;
  }

  .gallery-grid {
    grid-template-columns: 1fr 1fr;
  }

  .notify-bar__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-lg);
  }

  .notify-form {
    width: 100%;
  }

  .notify-form__input {
    flex: 1;
    min-width: 0;
  }

  .principles-list li {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
  }
}

@media (max-width: 640px) {
  :root {
    --spacing-2xl: 4rem;
  }

  .nav__links {
    display: none;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background-color: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: var(--spacing-lg);
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-lg);
  }

  .nav__links.open {
    display: flex;
  }

  .nav__toggle {
    display: flex;
  }

  .gallery-grid {
    grid-template-columns: 1fr;
  }

  .footer__inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .specs-table th {
    width: 120px;
    font-size: 0.65rem;
  }

  .specs-table td {
    font-size: 0.8rem;
  }
}