/*
 * Design Brief: Zenvora ← inspired by https://zenvora.cloud/
 *
 * Structure: sticky-nav → hero-split → tabbed-platform → staggered-capabilities
 *            → use-case-cards → feature-split-reverse → cta-band → footer-multi-column
 *
 * Reference tokens: light cool-gray bg (220 20% 97%), navy text (228 20% 10%),
 * cyan primary (#2ec5ff / hsl 193 83% 52%), Inter body + Space Grotesk display,
 * 0.75rem radius, hexagonal logo motif, workspace/dashboard polish — NOT dark gradient orbs.
 */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Space+Grotesk:wght@500;600;700&display=swap');

:root {
  --color-bg: #f5f6f8;
  --color-bg-alt: #ffffff;
  --color-surface: #ffffff;
  --color-surface-muted: #eceef2;
  --color-text: #14151a;
  --color-text-muted: #5c6370;
  --color-text-on-accent: #ffffff;
  --color-accent: #2ec5ff;
  --color-accent-hover: #13c4e8;
  --color-accent-bright: #13e7f6;
  --color-accent-soft: rgba(46, 197, 255, 0.12);
  --color-border: #dfe2e8;
  --color-success: #1b9e5a;
  --color-shadow: rgba(20, 21, 26, 0.08);
  --color-shadow-strong: rgba(20, 21, 26, 0.14);

  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;

  --radius-sm: 0.375rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-pill: 999px;

  --space-section: clamp(4rem, 8vw, 7rem);
  --space-block: clamp(1.5rem, 3vw, 2.5rem);
  --container-max: 1200px;
  --container-narrow: 760px;

  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-reveal: 0.7s cubic-bezier(0.16, 1, 0.3, 1);

  --header-height: 72px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

img, svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

ul, ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

h1, h2, h3, h4, p {
  margin: 0;
}

.container {
  width: min(var(--container-max), calc(100% - 2rem));
  margin-inline: auto;
}

.container--narrow {
  width: min(var(--container-narrow), calc(100% - 2rem));
  margin-inline: auto;
}

.eyebrow {
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent-hover);
}

.section-heading {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.section-lead {
  margin-top: 1rem;
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  color: var(--color-text-muted);
  max-width: 52ch;
}

.section-header {
  margin-bottom: var(--space-block);
}

.section-header--center {
  text-align: center;
}

.section-header--center .section-lead {
  margin-inline: auto;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.5rem;
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: background var(--transition-base), color var(--transition-base),
    border-color var(--transition-base), transform var(--transition-base),
    box-shadow var(--transition-base);
}

.btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-text-on-accent);
  box-shadow: 0 4px 14px rgba(46, 197, 255, 0.35);
}

.btn--primary:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(46, 197, 255, 0.4);
}

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

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

.btn--ghost {
  color: var(--color-text);
  padding-inline: 0.75rem;
}

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

/* ── Header / sticky-nav ── */

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--header-height);
  background: rgba(245, 246, 248, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.site-header.is-scrolled {
  border-color: var(--color-border);
  box-shadow: 0 4px 24px var(--color-shadow);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.site-logo img {
  width: 36px;
  height: 36px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.site-nav__links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.site-nav__links a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition-base);
}

.site-nav__links a:hover,
.site-nav__links a:focus-visible {
  color: var(--color-text);
}

.site-nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
}

.site-nav__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 1px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.site-nav__toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.site-nav__toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.site-nav__toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ── Hero / hero-split ── */

.hero {
  padding-top: calc(var(--header-height) + var(--space-section));
  padding-bottom: var(--space-section);
  overflow: hidden;
}

.hero--split .hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-top: 1rem;
}

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

.hero__subtitle {
  margin-top: 1.25rem;
  font-size: clamp(1rem, 1.6vw, 1.125rem);
  color: var(--color-text-muted);
  max-width: 46ch;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
  margin-top: 2rem;
}

.hero__trust {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}

.hero__stat {
  display: flex;
  flex-direction: column;
}

.hero__stat-value {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
}

.hero__stat-label {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.hero__visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 420px;
}

.hero__hex-scene {
  position: relative;
  width: 100%;
  max-width: 480px;
  aspect-ratio: 1;
}

.hero__hex-scene svg {
  width: 100%;
  height: 100%;
}

.hero__workspace-card {
  position: absolute;
  bottom: 8%;
  left: 5%;
  right: 5%;
  padding: 1rem 1.25rem;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: 0 12px 40px var(--color-shadow-strong);
  display: flex;
  align-items: center;
  gap: 0.875rem;
}

.hero__workspace-card-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--color-accent-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent-hover);
  font-family: var(--font-display);
  font-weight: 700;
}

.hero__workspace-card-text strong {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
}

.hero__workspace-card-text span {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* ── Platform / tabbed-platform ── */

.platform {
  padding-block: var(--space-section);
  background: var(--color-bg-alt);
  border-block: 1px solid var(--color-border);
}

.platform__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.platform__tab {
  padding: 0.625rem 1.25rem;
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-muted);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  transition: all var(--transition-base);
}

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

.platform__tab.is-active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-text-on-accent);
}

.platform__panel {
  display: none;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 4vw, 3.5rem);
  align-items: center;
}

.platform__panel.is-active {
  display: grid;
}

.platform__panel-copy h3 {
  font-family: var(--font-display);
  font-size: clamp(1.375rem, 2.5vw, 1.875rem);
  font-weight: 700;
  margin-bottom: 0.875rem;
}

.platform__panel-copy p {
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
}

.platform__feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.625rem 0;
  font-size: 0.9375rem;
}

.platform__feature-list li::before {
  content: '';
  flex-shrink: 0;
  width: 8px;
  height: 8px;
  margin-top: 0.5rem;
  background: var(--color-accent);
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
}

.platform__visual {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  min-height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.platform__visual-inner {
  width: 100%;
}

/* ── Capabilities / staggered-capabilities ── */

.capabilities {
  padding-block: var(--space-section);
}

.capability-row {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.5rem 2rem;
  padding: 2rem 0;
  border-bottom: 1px solid var(--color-border);
  align-items: start;
}

.capability-row:first-of-type {
  border-top: 1px solid var(--color-border);
}

.capability-row__index {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-accent-soft);
  line-height: 1;
  -webkit-text-stroke: 1px var(--color-accent);
  color: transparent;
}

.capability-row__content h3 {
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.capability-row__content p {
  color: var(--color-text-muted);
  max-width: 60ch;
}

.capability-row__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

.capability-row__tag {
  padding: 0.375rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 500;
  background: var(--color-surface-muted);
  border-radius: var(--radius-pill);
  color: var(--color-text-muted);
}

/* ── Solutions / use-case-cards ── */

.solutions {
  padding-block: var(--space-section);
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-surface-muted) 100%);
}

.solutions__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.solution-card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.solution-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 48px var(--color-shadow);
}

.solution-card__icon {
  width: 48px;
  height: 48px;
  margin-bottom: 1.25rem;
  color: var(--color-accent-hover);
}

.solution-card h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.625rem;
}

.solution-card p {
  flex: 1;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
}

.solution-card__link {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-accent-hover);
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  transition: gap var(--transition-base);
}

.solution-card:hover .solution-card__link {
  gap: 0.625rem;
}

/* ── Technology / feature-split-reverse ── */

.technology {
  padding-block: var(--space-section);
  background: var(--color-text);
  color: #e8eaed;
}

.technology .eyebrow {
  color: var(--color-accent-bright);
}

.technology .section-heading {
  color: #ffffff;
}

.technology .section-lead {
  color: #9aa0ab;
}

.technology__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

.technology__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.tech-stat {
  padding: 1.5rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
}

.tech-stat__value {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-accent-bright);
}

.tech-stat__label {
  margin-top: 0.375rem;
  font-size: 0.875rem;
  color: #9aa0ab;
}

.technology__diagram {
  position: relative;
  padding: 2.5rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
}

.tech-node {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: rgba(19, 231, 246, 0.08);
  border: 1px solid rgba(19, 231, 246, 0.25);
  border-radius: var(--radius-md);
  margin-bottom: 0.875rem;
}

.tech-node:last-child {
  margin-bottom: 0;
}

.tech-node__dot {
  width: 10px;
  height: 10px;
  background: var(--color-accent-bright);
  border-radius: 50%;
  flex-shrink: 0;
}

.tech-node span {
  font-size: 0.9375rem;
  font-weight: 500;
}

.technology__actions {
  margin-top: 2rem;
}

/* ── CTA / cta-band ── */

.cta-band {
  padding-block: var(--space-section);
}

.cta-band__inner {
  position: relative;
  overflow: hidden;
  padding: clamp(3rem, 6vw, 5rem);
  background: linear-gradient(135deg, rgba(46, 197, 255, 0.15) 0%, rgba(19, 231, 246, 0.08) 100%);
  border: 1px solid rgba(46, 197, 255, 0.3);
  border-radius: var(--radius-lg);
  text-align: center;
}

.cta-band__inner::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 50%, rgba(46, 197, 255, 0.12) 0%, transparent 50%),
    radial-gradient(circle at 80% 50%, rgba(19, 231, 246, 0.08) 0%, transparent 50%);
  pointer-events: none;
}

.cta-band__content {
  position: relative;
  z-index: 1;
}

.cta-band__content .section-heading {
  max-width: 18ch;
  margin-inline: auto;
}

.cta-band__content .section-lead {
  margin-inline: auto;
  margin-top: 1rem;
}

.cta-band__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.875rem;
  margin-top: 2rem;
}

/* ── Footer / footer-multi-column ── */

.site-footer {
  padding-block: var(--space-section) 2rem;
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}

.site-footer__brand p {
  margin-top: 1rem;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  max-width: 32ch;
}

.site-footer__email {
  display: inline-block;
  margin-top: 1.25rem;
  font-weight: 600;
  color: var(--color-accent-hover);
  transition: color var(--transition-base);
}

.site-footer__email:hover {
  color: var(--color-accent);
}

.site-footer__col h4 {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 1rem;
}

.site-footer__col ul li {
  margin-bottom: 0.625rem;
}

.site-footer__col a {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  transition: color var(--transition-base);
}

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

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* ── Modals ── */

.modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.modal[hidden] {
  display: none;
}

.modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(20, 21, 26, 0.5);
  backdrop-filter: blur(4px);
}

.modal__panel {
  position: relative;
  width: min(520px, 100%);
  max-height: calc(100vh - 3rem);
  overflow-y: auto;
  padding: 2rem;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 64px var(--color-shadow-strong);
}

.modal__close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--color-text-muted);
  border-radius: var(--radius-sm);
  transition: background var(--transition-base), color var(--transition-base);
}

.modal__close:hover {
  background: var(--color-surface-muted);
  color: var(--color-text);
}

.modal__panel h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.875rem;
  padding-right: 2rem;
}

.modal__panel p {
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.modal__panel ul {
  margin: 1rem 0;
  padding-left: 1.25rem;
  list-style: disc;
}

.modal__panel li {
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}

.modal__panel .btn {
  margin-top: 1.25rem;
}

/* ── Policy pages ── */

.page-content {
  padding-top: calc(var(--header-height) + 3rem);
  padding-bottom: var(--space-section);
}

.page-content h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.page-content .page-meta {
  color: var(--color-text-muted);
  font-size: 0.875rem;
  margin-bottom: 2.5rem;
}

.page-content h2 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  margin: 2rem 0 0.75rem;
}

.page-content p,
.page-content li {
  color: var(--color-text-muted);
  margin-bottom: 0.875rem;
}

.page-content ul {
  padding-left: 1.25rem;
  list-style: disc;
}