/* ==========================================================================
   dazz.ai — stylesheet
   Design tokens live in :root so the whole look can be retuned from here.
   ========================================================================== */

:root {
  /* -- Color: cool neutral base, single blue accent lifted from the logo -- */
  --color-bg: #F7F8FA;
  --color-bg-raised: #FFFFFF;
  --color-surface: #EEF2F7;
  --color-ink: #10131A;
  --color-ink-soft: #545B68;
  --color-ink-faint: #8891A0;
  --color-accent: #2F7FF5;
  --color-accent-dark: #1857B8;
  --color-accent-tint: #E5EFFF;
  --color-line: #DEE3EA;

  /* -- Type -- */
  --font-display: 'Outfit', 'Segoe UI', sans-serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;

  --fs-h1: clamp(2.4rem, 4.4vw, 3.6rem);
  --fs-h2: clamp(1.7rem, 2.8vw, 2.35rem);
  --fs-h3: 1.15rem;
  --fs-body: 1.0625rem;
  --fs-small: 0.9rem;

  /* -- Layout -- */
  --content-width: 1120px;
  --gutter: 24px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;

  /* -- Motion -- */
  --ease-standard: cubic-bezier(0.4, 0, 0.2, 1);
  --duration-fast: 160ms;
  --duration-medium: 420ms;
}

/* ==========================================================================
   Reset & base
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: var(--font-display);
  color: var(--color-ink);
  line-height: 1.12;
  margin: 0;
}

p {
  margin: 0;
}

a {
  color: inherit;
}

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

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

button, input {
  font-family: inherit;
  font-size: inherit;
}

.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;
}

.container {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* Keyboard focus visibility, kept consistent across interactive elements */
a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ==========================================================================
   Buttons & form fields
   ========================================================================== */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: var(--radius-sm);
  padding: 0.85em 1.5em;
  font-weight: 600;
  font-size: 0.98rem;
  cursor: pointer;
  transition: background var(--duration-fast) var(--ease-standard),
              transform var(--duration-fast) var(--ease-standard);
  white-space: nowrap;
}

.button--primary {
  background: var(--color-accent);
  color: #FFFFFF;
}

.button--primary:hover {
  background: var(--color-accent-dark);
}

.button--primary:active {
  transform: scale(0.98);
}

.input-base,
.hero__input,
.cta__input {
  border: 1.5px solid var(--color-line);
  background: var(--color-bg-raised);
  border-radius: var(--radius-sm);
  padding: 0.85em 1.1em;
  color: var(--color-ink);
  transition: border-color var(--duration-fast) var(--ease-standard);
}

.hero__input:focus,
.cta__input:focus {
  border-color: var(--color-accent);
  outline: none;
}

/* ==========================================================================
   Header / nav
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(247, 248, 250, 0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--duration-fast) var(--ease-standard);
}

.site-header.is-scrolled {
  border-bottom-color: var(--color-line);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.nav__brand {
  display: flex;
  align-items: center;
  text-decoration: none;
}

/* Wordmark: recreates the logo's two-tone treatment in real text so it stays
   crisp and legible at any size, instead of scaling the raster logo. */
.wordmark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.4rem;
  letter-spacing: -0.01em;
  display: inline-flex;
}

.wordmark--small {
  font-size: 1.1rem;
}

.wordmark__solid {
  color: var(--color-accent);
}

.wordmark__outline {
  color: transparent;
  -webkit-text-stroke: 1px var(--color-ink-faint);
}

.nav__menu {
  display: flex;
  align-items: center;
  gap: 2.1rem;
}

.nav__link {
  text-decoration: none;
  color: var(--color-ink-soft);
  font-size: 0.96rem;
  font-weight: 500;
  transition: color var(--duration-fast) var(--ease-standard);
}

.nav__link:hover {
  color: var(--color-ink);
}

.nav__link--cta {
  color: #FFFFFF;
  background: var(--color-accent);
  padding: 0.55em 1.15em;
  border-radius: var(--radius-sm);
}

.nav__link--cta:hover {
  background: var(--color-accent-dark);
  color: #FFFFFF;
}

.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 38px;
  height: 38px;
  background: none;
  border: none;
  cursor: pointer;
}

.nav__toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--color-ink);
  border-radius: 2px;
  transition: transform var(--duration-fast) var(--ease-standard),
              opacity var(--duration-fast) var(--ease-standard);
}

.nav__toggle[aria-expanded="true"] span:first-child {
  transform: translateY(3.5px) rotate(45deg);
}

.nav__toggle[aria-expanded="true"] span:last-child {
  transform: translateY(-3.5px) rotate(-45deg);
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 2rem;
  padding: 5.5rem 24px 6rem;
}

.hero__title {
  font-size: var(--fs-h1);
  font-weight: 600;
  letter-spacing: -0.01em;
}

.hero__title-outline {
  color: transparent;
  -webkit-text-stroke: 1.5px var(--color-ink);
}

.hero__lead {
  margin-top: 1.5rem;
  max-width: 46ch;
  color: var(--color-ink-soft);
  font-size: 1.08rem;
}

.hero__form {
  display: flex;
  gap: 0.6rem;
  margin-top: 2.2rem;
  max-width: 440px;
}

.hero__input {
  flex: 1;
  min-width: 0;
}

.hero__note {
  margin-top: 0.8rem;
  font-size: var(--fs-small);
  color: var(--color-ink-faint);
}

.hero__graphic {
  display: flex;
  align-items: center;
  justify-content: center;
}

.zigzag-mark {
  width: 100%;
  max-width: 320px;
  height: auto;
}

.zigzag-mark__stroke {
  fill: none;
  stroke: var(--color-accent);
  stroke-width: 14;
  stroke-linecap: round;
  stroke-linejoin: round;
  opacity: 0.16;
}

.zigzag-mark__pulse {
  fill: var(--color-accent);
  offset-path: path("M40 40 L180 40 L40 180 L180 180");
  animation: travel 3.2s var(--ease-standard) infinite;
}

@keyframes travel {
  0%   { offset-distance: 0%; opacity: 0; }
  8%   { opacity: 1; }
  92%  { opacity: 1; }
  100% { offset-distance: 100%; opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .zigzag-mark__pulse {
    animation: none;
    opacity: 1;
    offset-distance: 0%;
  }
}

/* ==========================================================================
   Section head (shared)
   ========================================================================== */

.section-head {
  max-width: 640px;
  margin-bottom: 3.2rem;
}

.section-head__title {
  font-size: var(--fs-h2);
  font-weight: 600;
  letter-spacing: -0.01em;
}

.section-head__lead {
  margin-top: 0.9rem;
  color: var(--color-ink-soft);
}

/* ==========================================================================
   How it works — flow diagram
   ========================================================================== */

.flow {
  padding: 5rem 0 6rem;
  --flow-gap: 2.4rem;
  --flow-rule-y: 0.62rem; /* vertical center of the node-index label, where the connecting rule sits */
}

.flow__diagram {
  display: flex;
  align-items: flex-start;
  gap: var(--flow-gap);
}

.flow__node {
  position: relative;
  flex: 1 1 0;
  min-width: 0;
}

/* Connecting rule + arrowhead drawn in the gap before every node but the first */
.flow__node:not(:first-child)::before {
  content: "";
  position: absolute;
  top: var(--flow-rule-y);
  left: calc(var(--flow-gap) * -1);
  width: var(--flow-gap);
  height: 1.5px;
  background: var(--color-line);
}

.flow__node:not(:first-child)::after {
  content: "";
  position: absolute;
  top: var(--flow-rule-y);
  left: calc(var(--flow-gap) * -1 + 4px);
  width: 6px;
  height: 6px;
  border-right: 1.5px solid var(--color-ink-faint);
  border-bottom: 1.5px solid var(--color-ink-faint);
  transform: translateY(-50%) rotate(-45deg);
}

.flow__node-index {
  display: block;
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 600;
  line-height: 1;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

.flow__node-title {
  font-size: var(--fs-h3);
  font-weight: 600;
  margin-bottom: 0.6rem;
}

.flow__node-copy {
  color: var(--color-ink-soft);
  font-size: 0.97rem;
  padding-right: 0.4rem;
}

/* ==========================================================================
   Providers / principles
   ========================================================================== */

.principles {
  padding: 5rem 0 6rem;
  background: var(--color-bg-raised);
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
}

.principles__grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 3.5rem;
}

.principles__intro .section-head__title {
  font-size: var(--fs-h2);
}

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

.principles__item {
  padding: 1.5rem 0;
  border-top: 1px solid var(--color-line);
}

.principles__item:last-child {
  padding-bottom: 0;
}

.principles__item-title {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.principles__item-copy {
  color: var(--color-ink-soft);
  font-size: 0.97rem;
  max-width: 56ch;
}

/* ==========================================================================
   Status
   ========================================================================== */

.status {
  padding: 5rem 0 6rem;
}

.status__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.6rem 3rem;
}

.status__line {
  color: var(--color-ink-soft);
  font-size: 0.98rem;
  padding-left: 1.1rem;
  border-left: 2px solid var(--color-accent-tint);
}

.status__line strong {
  color: var(--color-ink);
  font-weight: 600;
}

/* ==========================================================================
   Early access / CTA
   ========================================================================== */

.cta {
  padding: 5.5rem 0 6.5rem;
}

.cta__inner {
  background: var(--color-ink);
  border-radius: var(--radius-lg);
  padding: 3.6rem 3rem;
  text-align: left;
}

.cta__title {
  font-size: var(--fs-h2);
  font-weight: 600;
  color: #FFFFFF;
  max-width: 26ch;
}

.cta__lead {
  margin-top: 0.8rem;
  color: #AEB6C4;
  max-width: 46ch;
}

.cta__form {
  display: flex;
  gap: 0.6rem;
  margin-top: 2rem;
  max-width: 440px;
}

.cta__input {
  flex: 1;
  min-width: 0;
  background: #1B1F29;
  border-color: #2C3140;
  color: #FFFFFF;
}

.cta__input::placeholder {
  color: #6C7484;
}

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

.cta__note {
  margin-top: 0.8rem;
  font-size: var(--fs-small);
  color: #7C8494;
  min-height: 1.2em;
}

.cta__note.is-success {
  color: #78C77E;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  padding: 2.6rem 0 3rem;
}

.site-footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}



.site-footer__meta {
  color: var(--color-ink-faint);
  font-size: var(--fs-small);
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    padding-top: 3.2rem;
  }

  .hero__graphic {
    order: -1;
    max-width: 220px;
    margin: 0 auto;
  }

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

  .flow__diagram {
    flex-direction: column;
    gap: 2.4rem;
  }

  .flow__node:not(:first-child)::before,
  .flow__node:not(:first-child)::after {
    content: none;
  }

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

  .cta__inner {
    padding: 2.6rem 1.8rem;
  }
}

@media (max-width: 700px) {
  .nav__toggle {
    display: flex;
  }

  .nav__menu {
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: var(--color-bg-raised);
    border-bottom: 1px solid var(--color-line);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 0.5rem var(--gutter) 1.2rem;
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--duration-medium) var(--ease-standard),
                opacity var(--duration-medium) var(--ease-standard);
  }

  .nav__menu.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav__link {
    width: 100%;
    padding: 0.85rem 0;
    border-bottom: 1px solid var(--color-line);
  }

  .nav__link--cta {
    margin-top: 0.9rem;
    text-align: center;
    border-bottom: none;
  }

  .hero__form,
  .cta__form {
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  .hero__title-outline {
    -webkit-text-stroke-width: 1.2px;
  }
}