/* OctosX Main Styles */
@import './tokens.css';

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  line-height: 1.65;
  color: var(--color-text-primary);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }
input, textarea, select { font-family: inherit; }

/* ── Skip link ─────────────────────────────────────────────────── */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  padding: 0.5rem 1rem;
  background: var(--color-brand-primary);
  color: #fff;
  border-radius: var(--radius-sm);
  z-index: 9999;
  font-size: var(--text-xs);
  font-weight: 600;
  transition: top var(--transition-fast);
}
.skip-link:focus { top: 1rem; }

/* ── Layout helpers ────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: var(--section-py-lg); }
.section--subtle { background: var(--color-bg-subtle); }
.section--dark {
  background: var(--color-bg-dark);
  color: var(--color-text-on-dark);
}
.section--darker {
  background: var(--color-bg-darker);
  color: var(--color-text-on-dark);
}

/* ── Typography ────────────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--color-text-primary);
}

.section--dark h1,
.section--dark h2,
.section--dark h3,
.section--darker h1,
.section--darker h2,
.section--darker h3 {
  color: var(--color-text-on-dark);
}

.display-xl  { font-size: clamp(2.5rem, 5vw, var(--text-5xl)); font-weight: 700; letter-spacing: -0.02em; }
.display-lg  { font-size: clamp(2rem,   4vw, var(--text-4xl)); font-weight: 700; letter-spacing: -0.02em; }
.display-md  { font-size: clamp(1.75rem, 3vw, var(--text-3xl)); font-weight: 700; letter-spacing: -0.015em; }
.display-sm  { font-size: clamp(1.5rem,  2.5vw, var(--text-2xl)); font-weight: 600; }
.text-xl     { font-size: var(--text-xl); }
.text-lg     { font-size: var(--text-lg); }
.text-md     { font-size: var(--text-md); }
.text-sm     { font-size: var(--text-sm); }
.text-xs     { font-size: var(--text-xs); }

.eyebrow {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.lead {
  font-size: var(--text-md);
  line-height: 1.7;
  color: var(--color-text-secondary);
  max-width: 60ch;
}

.section--dark .lead,
.section--darker .lead {
  color: var(--color-text-on-dark-muted);
}

/* ── Section heading block ────────────────────────────────────── */
.section-header {
  margin-bottom: var(--space-12);
}
.section-header--center {
  text-align: center;
}
.section-header--center .lead {
  margin-inline: auto;
}
.section-header .eyebrow { margin-bottom: var(--space-3); }
.section-header h2 { margin-bottom: var(--space-4); }

/* ── Grid helpers ──────────────────────────────────────────────── */
.grid { display: grid; gap: var(--space-6); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-5 { grid-template-columns: repeat(5, 1fr); }

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-5 { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4, .grid-5 { grid-template-columns: 1fr; }
}

/* ── Utility ───────────────────────────────────────────────────── */
.flex            { display: flex; }
.flex-col        { flex-direction: column; }
.items-center    { align-items: center; }
.justify-center  { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-2  { gap: var(--space-2); }
.gap-3  { gap: var(--space-3); }
.gap-4  { gap: var(--space-4); }
.gap-6  { gap: var(--space-6); }
.gap-8  { gap: var(--space-8); }
.text-center { text-align: center; }
.mt-2  { margin-top: var(--space-2); }
.mt-4  { margin-top: var(--space-4); }
.mt-6  { margin-top: var(--space-6); }
.mt-8  { margin-top: var(--space-8); }
.mt-12 { margin-top: var(--space-12); }
.mb-2  { margin-bottom: var(--space-2); }
.mb-4  { margin-bottom: var(--space-4); }
.mb-6  { margin-bottom: var(--space-6); }
.mb-8  { margin-bottom: var(--space-8); }

.w-full { width: 100%; }

/* ── Scroll animation ──────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 300ms ease-out, transform 300ms ease-out;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 60ms; }
.reveal-delay-2 { transition-delay: 120ms; }
.reveal-delay-3 { transition-delay: 180ms; }
.reveal-delay-4 { transition-delay: 240ms; }
.reveal-delay-5 { transition-delay: 300ms; }

/* ── Hero backgrounds ──────────────────────────────────────────── */
.hero {
  position: relative;
  background: var(--color-bg-dark);
  color: var(--color-text-on-dark);
  overflow: hidden;
  padding-block: var(--space-32) var(--space-24);
}

.hero--page {
  padding-block: var(--space-24) var(--space-16);
}

.hero__bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

.hero__bg-gradient {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 60% 40%, rgba(49,130,206,0.12) 0%, transparent 60%);
  pointer-events: none;
}

.hero__bg-image {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  pointer-events: none;
}

.hero__bg-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg,
    rgba(15, 23, 42, 0.55) 0%,
    rgba(15, 23, 42, 0.75) 60%,
    rgba(15, 23, 42, 0.95) 100%);
}

.hero__content { position: relative; z-index: 1; }

.hero .eyebrow { color: var(--color-accent); margin-bottom: var(--space-4); }
.hero h1 { color: var(--color-text-on-dark); margin-bottom: var(--space-6); }
.hero .lead { color: var(--color-text-on-dark-muted); margin-bottom: var(--space-8); }

.hero__cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: center;
}

/* ── Nav ────────────────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  transition: background var(--transition-base), box-shadow var(--transition-base),
              backdrop-filter var(--transition-base);
  padding-block: 1.25rem;
}

.nav.scrolled {
  background: rgba(10, 31, 58, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--color-divider-dark);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-text-on-dark);
  flex-shrink: 0;
}

.nav__logo-mark {
  width: 32px; height: 32px;
  background: var(--color-accent);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--color-brand-primary);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.nav__link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-on-dark-muted);
  padding: 0.375rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
  position: relative;
}

.nav__link:hover { color: var(--color-text-on-dark); background: rgba(255,255,255,0.06); }
.nav__link.active { color: var(--color-text-on-dark); }
.nav__dropdown-toggle.active { color: var(--color-text-on-dark); }

/* Dropdown */
.nav__dropdown { position: relative; }

.nav__dropdown-toggle {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-on-dark-muted);
  padding: 0.375rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
  cursor: pointer;
}
.nav__dropdown-toggle:hover { color: var(--color-text-on-dark); background: rgba(255,255,255,0.06); }
.nav__dropdown-toggle svg { transition: transform var(--transition-fast); }
.nav__dropdown:hover .nav__dropdown-toggle svg { transform: rotate(180deg); }

.nav__dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-bg-dark);
  border: 1px solid var(--color-divider-dark);
  border-radius: var(--radius-md);
  padding: var(--space-2);
  min-width: 240px;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
  transform: translateX(-50%) translateY(-6px);
}

.nav__dropdown:hover .nav__dropdown-menu,
.nav__dropdown.open .nav__dropdown-menu {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.nav__dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  color: var(--color-text-on-dark-muted);
  font-size: 0.875rem;
  transition: color var(--transition-fast), background var(--transition-fast);
}
.nav__dropdown-item:hover {
  color: var(--color-text-on-dark);
  background: rgba(255,255,255,0.06);
}
.nav__dropdown-item-icon {
  width: 32px; height: 32px;
  background: rgba(255,255,255,0.06);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.nav__dropdown-item-text strong { display: block; color: var(--color-text-on-dark); font-weight: 500; font-size: 0.8125rem; }
.nav__dropdown-item-text span { font-size: 0.75rem; color: var(--color-text-on-dark-muted); }

.nav__right {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

/* Mobile nav */
.nav__mobile-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  color: var(--color-text-on-dark);
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}
.nav__mobile-toggle:hover { background: rgba(255,255,255,0.08); }

.nav__mobile-menu {
  display: none;
  position: fixed;
  top: 68px; left: 0; right: 0; bottom: 0;
  background: var(--color-bg-darker);
  padding: var(--space-6) var(--gutter);
  overflow-y: auto;
  flex-direction: column;
  gap: var(--space-2);
  z-index: 999;
}
.nav__mobile-menu.open { display: flex; }

.nav__mobile-link {
  display: block;
  padding: var(--space-4);
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--color-text-on-dark-muted);
  border-radius: var(--radius-md);
  transition: color var(--transition-fast), background var(--transition-fast);
}
.nav__mobile-link:hover { color: var(--color-text-on-dark); background: rgba(255,255,255,0.06); }
.nav__mobile-section-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-on-dark-muted);
  padding: var(--space-4) var(--space-4) var(--space-2);
  margin-top: var(--space-4);
}
.nav__mobile-cta { margin-top: var(--space-6); }

@media (max-width: 1024px) {
  .nav__links { display: none; }
  .nav__right .btn--primary { display: none; }
  .nav__mobile-toggle { display: flex; }
}

/* ── Footer ─────────────────────────────────────────────────────── */
.footer {
  background: var(--color-bg-darker);
  color: var(--color-text-on-dark-muted);
  padding-block: var(--space-24) var(--space-8);
  border-top: 1px solid var(--color-divider-dark);
}

.footer__main {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-16);
}

@media (max-width: 1024px) {
  .footer__main { grid-template-columns: 1fr 1fr 1fr; }
  .footer__brand { grid-column: 1 / -1; max-width: 400px; }
}
@media (max-width: 768px) {
  .footer__main { grid-template-columns: 1fr 1fr; }
  .footer__brand { grid-column: 1 / -1; }
}
@media (max-width: 480px) {
  .footer__main { grid-template-columns: 1fr; }
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--color-text-on-dark);
  margin-bottom: var(--space-4);
}

.footer__tagline {
  font-size: 0.875rem;
  line-height: 1.6;
  margin-bottom: var(--space-6);
  max-width: 36ch;
}

.footer__newsletter-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-on-dark);
  margin-bottom: var(--space-3);
}

.footer__newsletter-form {
  display: flex;
  gap: var(--space-2);
}

.footer__newsletter-input {
  flex: 1;
  padding: 0.5rem 0.75rem;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--color-divider-dark);
  border-radius: var(--radius-sm);
  color: var(--color-text-on-dark);
  font-size: 0.875rem;
  transition: border-color var(--transition-fast);
  outline: none;
}
.footer__newsletter-input::placeholder { color: var(--color-text-on-dark-muted); }
.footer__newsletter-input:focus { border-color: rgba(255,255,255,0.3); }

.footer__col-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-on-dark);
  letter-spacing: 0.04em;
  margin-bottom: var(--space-4);
}

.footer__col-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer__col-link {
  font-size: 0.875rem;
  color: var(--color-text-on-dark-muted);
  transition: color var(--transition-fast);
}
.footer__col-link:hover { color: var(--color-text-on-dark); }

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-divider-dark);
  font-size: 0.8125rem;
}

.footer__legal-links {
  display: flex;
  gap: var(--space-6);
}
.footer__legal-link {
  color: var(--color-text-on-dark-muted);
  transition: color var(--transition-fast);
}
.footer__legal-link:hover { color: var(--color-text-on-dark); }

.footer__partner-cta {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-accent);
  font-weight: 500;
  font-size: 0.875rem;
  transition: color var(--transition-fast);
}
.footer__partner-cta:hover { color: var(--color-accent-hover); }

/* ── Cookie notice ─────────────────────────────────────────────── */
.cookie-notice {
  position: fixed;
  bottom: var(--space-4);
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-bg-dark);
  border: 1px solid var(--color-divider-dark);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-6);
  display: flex;
  align-items: center;
  gap: var(--space-6);
  max-width: 680px;
  width: calc(100% - 2rem);
  z-index: 900;
  box-shadow: var(--shadow-lg);
  font-size: 0.8125rem;
  color: var(--color-text-on-dark-muted);
}
.cookie-notice.hidden { display: none; }

/* ── Breadcrumb ────────────────────────────────────────────────── */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.8125rem;
  color: var(--color-text-on-dark-muted);
  margin-bottom: var(--space-6);
}
.breadcrumb a { color: var(--color-text-on-dark-muted); transition: color var(--transition-fast); }
.breadcrumb a:hover { color: var(--color-text-on-dark); }
.breadcrumb__sep { color: var(--color-text-on-dark-muted); opacity: 0.4; }

/* ── Trust bar ─────────────────────────────────────────────────── */
.trust-bar {
  background: var(--color-bg-darker);
  border-bottom: 1px solid var(--color-divider-dark);
  padding-block: var(--space-4);
}
.trust-bar__inner {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-6);
  font-size: 0.8125rem;
  color: var(--color-text-on-dark-muted);
}
.trust-bar__sep {
  width: 1px;
  height: 1rem;
  background: var(--color-divider-dark);
}
.trust-bar__badge {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 500;
  color: var(--color-text-on-dark-muted);
}
.trust-bar__badge svg { color: var(--color-accent); }

/* ── Industries strip ──────────────────────────────────────────── */
.industries-strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-3);
}
.industry-tag {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--color-bg-section);
  border: 1px solid var(--color-divider);
  border-radius: 100px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: border-color var(--transition-fast), color var(--transition-fast);
}
.industry-tag:hover { border-color: var(--color-brand-primary); color: var(--color-brand-primary); }

/* ── Platform architecture ──────────────────────────────────────── */
.arch-diagram {
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  overflow-x: auto;
}
.arch-diagram svg { max-width: 100%; height: auto; }

/* ── Spec grid ──────────────────────────────────────────────────── */
.spec-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: var(--space-4);
}
.spec-item {
  padding: var(--space-4) var(--space-4);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--color-divider-dark);
  border-radius: var(--radius-md);
}
.spec-item__value {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--color-accent);
  margin-bottom: var(--space-1);
}
.spec-item__label {
  font-size: 0.8125rem;
  color: var(--color-text-on-dark-muted);
}

/* ── Protocol tags ──────────────────────────────────────────────── */
.protocol-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.protocol-tag {
  padding: var(--space-1) var(--space-3);
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--color-divider-dark);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--color-text-on-dark-muted);
}

/* ── Responsive section padding ────────────────────────────────── */
@media (max-width: 768px) {
  .section { padding-block: var(--section-py-sm); }
  .hero { padding-block: var(--space-24) var(--space-16); }
  .hero--page { padding-block: var(--space-16) var(--space-12); }
}