/*
 * Design Brief: Dynavex ← inspired by https://www.getdynamiq.ai/
 *
 * Structure: sticky-black-nav → hero-split (light periwinkle) → roi-stat-band (dark)
 *   → value-triptych → trust-bar → tabbed-platform → solutions-stagger-grid
 *   → security-compliance → data-safety-panel → cta-band → footer-multi-column
 *
 * Hero: split 50/50, Manrope typography, black pill badge, dual CTAs
 * Motion: fade-up reveals 0.7s, subtle hover lifts, no floating orbs
 */

:root {
  --color-bg: #ccd5eb;
  --color-bg-alt: #eef1f8;
  --color-bg-dark: #0a0a0a;
  --color-bg-darker: #000000;
  --color-surface: #ffffff;
  --color-surface-muted: #f4f6fb;
  --color-text: #0a0a0a;
  --color-text-muted: #5c6370;
  --color-text-on-dark: #ffffff;
  --color-text-muted-on-dark: rgba(255, 255, 255, 0.72);
  --color-accent: #0a0a0a;
  --color-accent-hover: #2d2d2d;
  --color-accent-light: #ffffff;
  --color-border: rgba(10, 10, 10, 0.12);
  --color-border-dark: rgba(255, 255, 255, 0.14);
  --color-grid-line: rgba(10, 10, 10, 0.06);
  --font-display: "Manrope", system-ui, -apple-system, sans-serif;
  --font-body: "Manrope", system-ui, -apple-system, sans-serif;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-pill: 999px;
  --space-section: clamp(4rem, 10vw, 7rem);
  --space-container: clamp(1.25rem, 4vw, 2rem);
  --header-height: 4.25rem;
  --max-width: 1180px;
  --shadow-card: 0 8px 32px rgba(10, 10, 10, 0.08);
  --shadow-elevated: 0 16px 48px rgba(10, 10, 10, 0.12);
  --transition-base: 0.35s cubic-bezier(0.25, 0.1, 0.25, 1);
  --transition-reveal: 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  width: 100%;
}

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  width: 100%;
  overflow-x: hidden;
}

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

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

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

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--space-container);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.35rem;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-pill);
  transition: background var(--transition-base), color var(--transition-base),
    border-color var(--transition-base), transform var(--transition-base);
}

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

.btn--primary {
  background: var(--color-accent);
  color: var(--color-accent-light);
}

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

.btn--secondary {
  background: transparent;
  color: var(--color-text);
  border: 1.5px solid var(--color-text);
}

.btn--secondary:hover {
  background: var(--color-text);
  color: var(--color-accent-light);
}

.btn--ghost-light {
  background: transparent;
  color: var(--color-text-on-dark);
  border: 1.5px solid rgba(255, 255, 255, 0.5);
}

.btn--ghost-light:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--color-text-on-dark);
}

.btn--primary-light {
  background: var(--color-accent-light);
  color: var(--color-accent);
}

.btn--primary-light:hover {
  background: #e8e8e8;
}

.btn--arrow::after {
  content: "→";
  font-size: 1.1em;
  transition: transform var(--transition-base);
}

.btn--arrow:hover::after {
  transform: translateX(3px);
}

/* Header — sticky-black-nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: var(--color-bg-darker);
  border-bottom: 1px solid var(--color-border-dark);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 1.5rem;
}

.site-header__logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  color: var(--color-text-on-dark);
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: -0.02em;
}

.site-header__logo img {
  width: 28px;
  height: 28px;
}

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

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

.site-nav__link:hover {
  color: var(--color-text-on-dark);
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
  color: var(--color-text-on-dark);
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: currentColor;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

/* Hero — hero-split */
.hero {
  background: var(--color-bg);
  overflow: hidden;
}

.hero--split .hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
  min-height: min(88vh, 820px);
  padding-block: clamp(3rem, 6vw, 5rem);
}

.hero__eyebrow {
  display: inline-block;
  padding: 0.35rem 0.85rem;
  margin-bottom: 1.25rem;
  font-size: 0.8125rem;
  font-weight: 600;
  background: var(--color-bg-darker);
  color: var(--color-text-on-dark);
  border-radius: var(--radius-pill);
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 5vw, 4rem);
  font-weight: 500;
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
}

.hero__subtitle {
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  color: var(--color-text-muted);
  max-width: 34rem;
  margin-bottom: 2rem;
}

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

.hero__visual {
  position: relative;
  min-height: 380px;
}

.hero__diagram {
  width: 100%;
  height: auto;
  max-width: 100%;
  filter: drop-shadow(0 16px 48px rgba(10, 10, 10, 0.12));
}

/* ROI stat band */
.section--dark {
  background: var(--color-bg-darker);
  color: var(--color-text-on-dark);
}

.roi-band {
  padding-block: var(--space-section);
  text-align: center;
}

.roi-band__title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 500;
  letter-spacing: -0.02em;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.roi-band__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.5rem, 3vw, 2.5rem);
}

.roi-stat {
  padding: 1.5rem;
}

.roi-stat__value {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  margin-bottom: 0.5rem;
}

.roi-stat__label {
  font-size: 0.9375rem;
  color: var(--color-text-muted-on-dark);
  max-width: 16rem;
  margin-inline: auto;
}

/* Value triptych */
.value-triptych {
  padding-block: var(--space-section);
  background: var(--color-bg);
}

.value-triptych__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.5rem, 3vw, 2rem);
}

.value-card {
  padding: clamp(1.5rem, 3vw, 2rem);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.value-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.value-card__title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}

.value-card__text {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

/* Trust bar */
.trust-bar {
  padding-block: clamp(2.5rem, 5vw, 3.5rem);
  background: var(--color-bg-alt);
  border-block: 1px solid var(--color-border);
}

.trust-bar__title {
  text-align: center;
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
}

.trust-bar__logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: clamp(2rem, 5vw, 4rem);
}

.trust-logo {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text-muted);
  opacity: 0.55;
  letter-spacing: -0.01em;
}

/* Tabbed platform */
.tabbed-platform {
  padding-block: var(--space-section);
  background: var(--color-surface-muted);
}

.section-header {
  text-align: center;
  max-width: 42rem;
  margin-inline: auto;
  margin-bottom: clamp(2.5rem, 5vw, 3.5rem);
}

.section-header__title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 500;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.section-header__subtitle {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
}

.section--dark .section-header__title {
  color: var(--color-text-on-dark);
}

.section--dark .section-header__subtitle {
  color: var(--color-text-muted-on-dark);
}

.platform-tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
}

.platform-tab {
  padding: 0.65rem 1.15rem;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-muted);
  transition: all var(--transition-base);
}

.platform-tab:hover {
  border-color: var(--color-text);
  color: var(--color-text);
}

.platform-tab.is-active {
  background: var(--color-accent);
  color: var(--color-accent-light);
  border-color: var(--color-accent);
}

.platform-panels {
  position: relative;
}

.platform-panel {
  display: none;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 4vw, 3rem);
  align-items: center;
  padding: clamp(2rem, 4vw, 3rem);
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
}

.platform-panel[hidden] {
  display: none !important;
}

.platform-panel.is-active {
  display: grid;
}

.platform-panel__title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.platform-panel__text {
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
}

.platform-panel__visual {
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  padding: 2rem;
  min-height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.platform-icon {
  width: 64px;
  height: 64px;
  color: var(--color-accent);
}

/* Solutions stagger grid */
.solutions {
  padding-block: var(--space-section);
  background: var(--color-bg);
}

.solutions__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(1.25rem, 2.5vw, 1.75rem);
}

.solution-block {
  display: flex;
  gap: 1.25rem;
  padding: clamp(1.5rem, 3vw, 2rem);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  transition: transform var(--transition-base), border-color var(--transition-base);
}

.solution-block:hover {
  transform: translateY(-3px);
  border-color: rgba(10, 10, 10, 0.25);
}

.solution-block__icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  font-size: 1.25rem;
}

.solution-block__title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

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

.solution-block__link {
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* Security compliance */
.security {
  padding-block: var(--space-section);
}

.compliance-badges {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.25rem, 2.5vw, 1.75rem);
  margin-bottom: clamp(3rem, 6vw, 4.5rem);
}

.compliance-badge {
  padding: clamp(1.5rem, 3vw, 2rem);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-lg);
  transition: background var(--transition-base);
}

.compliance-badge:hover {
  background: rgba(255, 255, 255, 0.1);
}

.compliance-badge__title {
  font-size: 1.375rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.compliance-badge__text {
  font-size: 0.9375rem;
  color: var(--color-text-muted-on-dark);
}

/* Data safety panel */
.data-safety {
  padding-block: var(--space-section);
  background: var(--color-surface-muted);
}

.data-safety__inner {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: clamp(2rem, 4vw, 3.5rem);
  align-items: start;
}

.data-safety__intro .section-header {
  text-align: left;
  margin-inline: 0;
  margin-bottom: 0;
}

.data-safety__features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.safety-feature {
  padding: 1.5rem;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.safety-feature__title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.safety-feature__text {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* CTA band */
.cta-band {
  padding-block: clamp(4rem, 8vw, 6rem);
  background: var(--color-bg-darker);
  color: var(--color-text-on-dark);
  text-align: center;
}

.cta-band__title {
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 500;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.cta-band__text {
  font-size: 1.0625rem;
  color: var(--color-text-muted-on-dark);
  max-width: 32rem;
  margin-inline: auto;
  margin-bottom: 2rem;
}

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

/* Footer */
.site-footer {
  background: var(--color-bg-darker);
  color: var(--color-text-muted-on-dark);
  padding-block: clamp(3rem, 6vw, 4.5rem) 2rem;
  border-top: 1px solid var(--color-border-dark);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: clamp(2rem, 4vw, 3rem);
  margin-bottom: 3rem;
}

.site-footer__brand {
  color: var(--color-text-on-dark);
  font-weight: 700;
  font-size: 1.125rem;
  margin-bottom: 0.75rem;
}

.site-footer__tagline {
  font-size: 0.9375rem;
  max-width: 18rem;
}

.site-footer__col-title {
  color: var(--color-text-on-dark);
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 1rem;
}

.site-footer__links li {
  margin-bottom: 0.5rem;
}

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

.site-footer__links a:hover {
  color: var(--color-text-on-dark);
}

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border-dark);
  font-size: 0.875rem;
}

.site-footer__email a {
  color: var(--color-text-on-dark);
  font-weight: 600;
}

.site-footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
}

/* 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(0, 0, 0, 0.55);
  backdrop-filter: blur(4px);
}

.modal__panel {
  position: relative;
  width: min(100%, 520px);
  max-height: 85vh;
  overflow-y: auto;
  padding: clamp(1.75rem, 4vw, 2.5rem);
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-elevated);
}

.modal__close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  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-bg-alt);
  color: var(--color-text);
}

.modal__panel h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
  padding-right: 2rem;
}

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

.modal__panel ul {
  list-style: disc;
  padding-left: 1.25rem;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.modal__panel li {
  margin-bottom: 0.35rem;
}

/* Policy pages */
.policy-page {
  padding-block: calc(var(--header-height) + 3rem) 4rem;
  background: var(--color-surface-muted);
  min-height: 70vh;
}

.policy-page__content {
  max-width: 720px;
}

.policy-page h1 {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  margin-bottom: 0.5rem;
}

.policy-page__updated {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  margin-bottom: 2rem;
}

.policy-page h2 {
  font-size: 1.25rem;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.policy-page p,
.policy-page li {
  color: var(--color-text-muted);
  margin-bottom: 0.75rem;
}

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