/* ============================================================
   MarineOS — coming-soon page
   Custom palette: deep navy + warm sand + signal teal.
   Marine product, dealer audience, professional.
   ============================================================ */

:root {
  /* Type */
  --font-display: "Zodiak", Georgia, "Times New Roman", serif;
  --font-body: "Satoshi", "Helvetica Neue", system-ui, sans-serif;

  --text-xs: clamp(0.75rem, 0.7rem + 0.2vw, 0.8125rem);
  --text-sm: clamp(0.875rem, 0.82rem + 0.25vw, 0.9375rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.0625rem);
  --text-lg: clamp(1.125rem, 1rem + 0.6vw, 1.375rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.2vw, 2.125rem);
  --text-2xl: clamp(2rem, 1.4rem + 2.6vw, 3.25rem);
  --text-hero: clamp(2.5rem, 1.5rem + 4.6vw, 5rem);

  /* Spacing (4px base) */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Color — Marine palette
     Anchor: deep, oxidized-brass navy (the inside of a working hull at dusk).
     Accent: signal teal (channel-marker green-blue, daylight visible).
     Surface: warm sand. */
  --color-bg: #f6f1e7;
  --color-surface: #fbf7ee;
  --color-surface-2: #fffcf3;
  --color-surface-offset: #ede5d2;
  --color-border: #d8cdb4;
  --color-divider: #e2d8c1;

  --color-text: #0a1f24;
  --color-text-muted: #51626a;
  --color-text-faint: #8a9499;
  --color-text-inverse: #fbf7ee;

  --color-primary: #006e75;       /* signal teal */
  --color-primary-hover: #00565c;
  --color-primary-active: #003e43;
  --color-primary-highlight: #c9e0e0;

  --color-deep: #0a1f24;          /* deep navy section */
  --color-deep-2: #102a30;
  --color-warning: #b8541b;
  --color-success: #437a22;

  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-pill: 9999px;

  --transition-interactive: 200ms cubic-bezier(0.16, 1, 0.3, 1);

  --shadow-sm: 0 1px 2px rgba(10, 31, 36, 0.05);
  --shadow-md: 0 6px 18px rgba(10, 31, 36, 0.08);
  --shadow-lg: 0 18px 44px rgba(10, 31, 36, 0.14);

  --content: 1140px;
  --content-narrow: 720px;
}

/* ============================================================
   Reset / base
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: var(--space-16);
}
body {
  min-height: 100dvh;
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.55;
  color: var(--color-text);
  background-color: var(--color-bg);
  /* subtle paper-grain via two layered radial gradients */
  background-image:
    radial-gradient(1200px 600px at 80% -10%, rgba(0, 110, 117, 0.06), transparent 60%),
    radial-gradient(900px 600px at -10% 110%, rgba(184, 84, 27, 0.05), transparent 60%);
}
img, svg { display: block; max-width: 100%; }
input, button, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: none; }

h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; line-height: 1.1; letter-spacing: -0.01em; text-wrap: balance; }
p { text-wrap: pretty; max-width: 64ch; }

::selection { background: var(--color-primary-highlight); color: var(--color-deep); }

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

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

.skip {
  position: absolute; left: -9999px; top: auto;
  background: var(--color-deep); color: var(--color-text-inverse);
  padding: var(--space-2) var(--space-4); border-radius: var(--radius-md);
  z-index: 100;
}
.skip:focus { left: var(--space-4); top: var(--space-4); }

/* ============================================================
   Layout primitives
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--content);
  margin: 0 auto;
  padding-inline: clamp(var(--space-5), 4vw, var(--space-12));
}

.section {
  padding-block: clamp(var(--space-16), 9vw, var(--space-24));
  border-top: 1px solid var(--color-divider);
}
.section-alt {
  background: var(--color-surface-offset);
}
.section-cta {
  background: var(--color-deep);
  color: var(--color-text-inverse);
  border-top: none;
}
.section-cta .cta-bullets li,
.section-cta p { color: rgba(251, 247, 238, 0.78); }

/* ============================================================
   Header
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(246, 241, 231, 0.85);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--color-divider);
}
.header-row {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--space-4);
  padding-block: var(--space-4);
}
.brand {
  display: inline-flex; align-items: center; gap: var(--space-2);
  color: var(--color-deep);
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  letter-spacing: -0.01em;
}
.brand-mark { height: 34px; width: auto; flex: none; }
.status-pill {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding: 6px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-surface);
}
.header-right {
  display: inline-flex; align-items: center; gap: var(--space-3);
}
.header-login {
  display: inline-flex; align-items: center;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-deep);
  text-decoration: none;
  padding: 8px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: transparent;
  transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
}
.header-login:hover {
  border-color: var(--color-deep);
  color: var(--color-primary);
  background: var(--color-surface);
}
.header-login:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}
@media (max-width: 520px) {
  .header-right { gap: var(--space-2); }
  .status-pill { display: none; }
}
.status-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 0 0 rgba(0, 110, 117, 0.55);
  animation: pulse 2.4s cubic-bezier(0.16, 1, 0.3, 1) infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(0, 110, 117, 0.55); }
  70%  { box-shadow: 0 0 0 7px rgba(0, 110, 117, 0); }
  100% { box-shadow: 0 0 0 0 rgba(0, 110, 117, 0); }
}

/* ============================================================
   Hero
   ============================================================ */
.hero {
  padding-block: clamp(var(--space-16), 11vw, var(--space-32));
  position: relative;
  overflow: hidden;
}
.hero-inner { max-width: 940px; }
.eyebrow {
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-primary);
  font-weight: 500;
  margin-bottom: var(--space-5);
}
.hero-title {
  font-size: var(--text-hero);
  font-weight: 600;
  letter-spacing: -0.025em;
  color: var(--color-deep);
  margin-bottom: var(--space-6);
  max-width: 18ch;
}
.hero-lede {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 60ch;
  margin-bottom: var(--space-10);
  line-height: 1.5;
}
.hero-ctas {
  display: flex; flex-wrap: wrap; gap: var(--space-3);
  margin-bottom: var(--space-12);
}
.hero-trust {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  list-style: none;
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-divider);
  max-width: 920px;
}
.hero-trust li {
  position: relative;
  padding-left: 22px;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}
.hero-trust li::before {
  content: "";
  position: absolute; left: 0; top: 0.55em;
  width: 12px; height: 1.5px;
  background: var(--color-primary);
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 14px 22px;
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.01em;
  border: 1px solid transparent;
  transition: all var(--transition-interactive);
  text-decoration: none;
  white-space: nowrap;
}
.btn-primary {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover { background: var(--color-primary-hover); transform: translateY(-1px); box-shadow: var(--shadow-md); color: var(--color-text-inverse); }
.btn-primary:active { background: var(--color-primary-active); transform: translateY(0); }
.btn-ghost {
  background: transparent;
  color: var(--color-deep);
  border-color: var(--color-border);
}
.btn-ghost:hover { border-color: var(--color-deep); color: var(--color-deep); background: var(--color-surface); }

.btn-submit { width: 100%; padding-block: 16px; }
.btn-submit[disabled] { cursor: progress; opacity: 0.85; }
.btn-spinner {
  display: none;
  width: 16px; height: 16px;
  border-radius: 50%;
  border: 2px solid currentColor;
  border-top-color: transparent;
  animation: spin 0.8s linear infinite;
}
.btn-submit.loading .btn-spinner { display: inline-block; }
.btn-submit.loading .btn-label { opacity: 0.65; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ============================================================
   Sections + cards
   ============================================================ */
.section-title {
  font-size: var(--text-xl);
  color: var(--color-deep);
  margin-bottom: var(--space-10);
  max-width: 24ch;
}
.section-cta .section-title { color: var(--color-text-inverse); }

.cards {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: transform var(--transition-interactive), box-shadow var(--transition-interactive), border-color var(--transition-interactive);
}
.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}
.card-title {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-deep);
  margin-bottom: var(--space-3);
}
.card-body {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  line-height: 1.6;
}

.reasons {
  display: grid;
  gap: var(--space-8);
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}
.reason { padding-top: var(--space-3); }
.reason-num {
  display: inline-block;
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--color-primary);
  letter-spacing: 0.05em;
  margin-bottom: var(--space-3);
}
.reason-title {
  font-size: var(--text-lg);
  color: var(--color-deep);
  margin-bottom: var(--space-2);
}
.reason-body {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  line-height: 1.6;
}

/* ============================================================
   CTA section + form
   ============================================================ */
.cta-wrap {
  display: grid;
  gap: var(--space-12);
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  align-items: start;
}
@media (max-width: 880px) {
  .cta-wrap { grid-template-columns: 1fr; gap: var(--space-10); }
}
.cta-copy .eyebrow { color: #6fcfd0; }
.cta-title {
  font-size: var(--text-2xl);
  color: var(--color-text-inverse);
  margin-bottom: var(--space-5);
}
.cta-lede {
  font-size: var(--text-base);
  margin-bottom: var(--space-6);
  line-height: 1.6;
  max-width: 50ch;
}
.cta-bullets {
  list-style: none;
  display: grid;
  gap: var(--space-3);
}
.cta-bullets li {
  position: relative;
  padding-left: 20px;
  font-size: var(--text-sm);
}
.cta-bullets li::before {
  content: "";
  position: absolute; left: 0; top: 0.55em;
  width: 10px; height: 1.5px;
  background: #6fcfd0;
}

.form {
  background: var(--color-surface);
  color: var(--color-text);
  border-radius: var(--radius-lg);
  padding: clamp(var(--space-6), 4vw, var(--space-10));
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
}
.form .row { margin-bottom: var(--space-4); }
.form .row.two {
  display: grid; gap: var(--space-4);
  grid-template-columns: 1fr 1fr;
}
@media (max-width: 540px) { .form .row.two { grid-template-columns: 1fr; } }
.field { display: block; }
.label {
  display: block;
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 6px;
}
.label em { color: var(--color-primary); font-style: normal; }
.field input,
.field textarea {
  display: block; width: 100%;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  font-size: var(--text-base);
  color: var(--color-text);
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive), background var(--transition-interactive);
}
.field input::placeholder,
.field textarea::placeholder { color: var(--color-text-faint); }
.field input:hover,
.field textarea:hover { border-color: var(--color-text-faint); }
.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 110, 117, 0.18);
  background: var(--color-surface);
}
.field textarea { resize: vertical; min-height: 88px; }

.hp { position: absolute; left: -9999px; top: -9999px; height: 0; overflow: hidden; }

.form-status {
  margin-top: var(--space-4);
  font-size: var(--text-sm);
  min-height: 1.4em;
  color: var(--color-text-muted);
}
.form-status.success { color: var(--color-success); font-weight: 500; }
.form-status.error { color: var(--color-warning); }

.form.success-state .row,
.form.success-state .btn-submit { display: none; }
.form .success-message { display: none; }
.form.success-state .success-message {
  display: block;
  padding: var(--space-6);
  background: var(--color-surface-2);
  border: 1px solid var(--color-primary-highlight);
  border-radius: var(--radius-md);
}
.form.success-state .success-message h3 {
  font-size: var(--text-lg);
  color: var(--color-deep);
  margin-bottom: var(--space-2);
}
.form.success-state .success-message p { color: var(--color-text-muted); font-size: var(--text-sm); }

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  background: var(--color-bg);
  border-top: 1px solid var(--color-divider);
}
.footer-row {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: var(--space-4);
  padding-block: var(--space-8);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}
.footer-brand { display: inline-flex; align-items: center; gap: var(--space-2); color: var(--color-deep); font-weight: 500; }
.footer-brand svg { color: var(--color-primary); }
.footer-meta { display: inline-flex; flex-wrap: wrap; gap: var(--space-2); }
.dot { color: var(--color-text-faint); }

/* ============================================================
   Demo section + video thumbnail + modal
   ============================================================ */
.btn-icon { margin-right: 6px; vertical-align: -2px; }
button.btn { font-family: inherit; cursor: pointer; }
button.btn-ghost { background: transparent; }

.section-demo {
  background: var(--color-surface);
  border-block: 1px solid var(--color-divider);
}
.demo-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  gap: var(--space-8);
  align-items: center;
}
@media (max-width: 880px) {
  .demo-wrap { grid-template-columns: 1fr; gap: var(--space-6); }
}
.demo-title { text-align: left; margin-bottom: var(--space-4); }
.demo-lede {
  font-size: var(--text-md);
  color: var(--color-text-muted);
  line-height: 1.55;
  margin-bottom: var(--space-4);
}
.demo-bullets {
  list-style: none; padding: 0; margin: 0 0 var(--space-5) 0;
  display: flex; flex-direction: column; gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text);
}
.demo-bullets li { position: relative; padding-left: 22px; }
.demo-bullets li::before {
  content: ""; position: absolute; left: 0; top: 0.55em;
  width: 12px; height: 2px; background: var(--color-primary); border-radius: 2px;
}
.demo-ctas { display: flex; flex-wrap: wrap; gap: var(--space-3); }

.demo-thumb {
  position: relative; display: block; width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-deep);
  padding: 0; cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
  font-family: inherit;
}
.demo-thumb:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}
.demo-thumb:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 3px;
}
.demo-thumb img {
  display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover;
}
.demo-thumb-play {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--color-surface);
  filter: drop-shadow(0 6px 14px rgba(0,0,0,0.45));
  transition: transform 0.18s ease;
}
.demo-thumb-play svg { width: 64px; height: 64px; }
.demo-thumb:hover .demo-thumb-play { transform: translate(-50%, -50%) scale(1.05); }
.demo-thumb-meta {
  position: absolute; left: 14px; bottom: 12px;
  background: rgba(10, 31, 36, 0.78);
  color: var(--color-surface);
  font-size: 11px; letter-spacing: 0.04em; text-transform: uppercase;
  padding: 6px 10px; border-radius: 999px;
  backdrop-filter: blur(4px);
}

/* Modal */
.video-modal {
  position: fixed; inset: 0; z-index: 1000;
  display: flex; align-items: center; justify-content: center;
  padding: var(--space-4);
}
.video-modal[hidden] { display: none; }
.video-modal-backdrop {
  position: absolute; inset: 0;
  background: rgba(10, 31, 36, 0.82);
  backdrop-filter: blur(6px);
  cursor: pointer;
}
.video-modal-inner {
  position: relative;
  width: min(1100px, 100%);
  max-height: calc(100vh - 2 * var(--space-4));
  display: flex; flex-direction: column;
  background: var(--color-deep);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 40px 80px rgba(0,0,0,0.5);
  animation: video-modal-in 0.18s ease-out;
}
@keyframes video-modal-in {
  from { opacity: 0; transform: translateY(8px) scale(0.98); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}
.video-modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px;
  background: var(--color-deep-2);
  border-bottom: 1px solid rgba(251, 247, 238, 0.08);
}
.video-modal-title {
  margin: 0;
  font-size: var(--text-sm); letter-spacing: 0.02em;
  color: var(--color-surface);
  font-weight: 500;
}
.video-modal-close {
  appearance: none; background: transparent; border: 0; cursor: pointer;
  color: var(--color-surface);
  width: 32px; height: 32px; border-radius: 999px;
  display: inline-flex; align-items: center; justify-content: center;
  transition: background 0.15s ease;
}
.video-modal-close:hover { background: rgba(251, 247, 238, 0.10); }
.video-modal-close:focus-visible { outline: 2px solid var(--color-primary-highlight); outline-offset: 2px; }
.video-frame {
  position: relative; background: #000;
  aspect-ratio: 16 / 9;
}
.video-frame video {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  display: block;
}

/* Lock scroll when modal open */
body.video-modal-open { overflow: hidden; }

/* Dedicated /demo page player */
.demo-player-frame {
  position: relative;
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  aspect-ratio: 16 / 9;
  background: #000;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(10, 31, 36, 0.18);
  border: 1px solid var(--color-border);
}
.demo-player-frame video {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  display: block;
}
.demo-meta {
  text-align: center;
  margin-top: var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.demo-meta a { color: var(--color-primary); }
.demo-meta a:hover { color: var(--color-primary-hover); }