@import url("./reset/index.css");

:root {
  --spacing: 0.25rem;

  --spacing-xs: calc(var(--spacing) * 1);
  --spacing-sm: calc(var(--spacing) * 2);
  --spacing-base: calc(var(--spacing) * 4);
  --spacing-md: calc(var(--spacing) * 8);
  --spacing-lg: calc(var(--spacing) * 12);

  --color-black: #000000;
  --color-white: #ffffff;
  --color-border: #e0e0e0;
  --color-gray-dark: #666666;

  --breakpoint-mobile: 40rem;
  --breakpoint-tablet: 48rem;
  --breakpoint-laptop: 64rem;
  --breakpoint-desktop: 80rem;

  --font-weight-bold: 700;
  --font-weight-normal: 400;

  --font-size-sm: clamp(0.8rem, 0.17vi + 0.76rem, 0.89rem);
  --font-size-base: clamp(1rem, 0.34vi + 0.91rem, 1.19rem);
  --font-size-md: clamp(1.25rem, 0.61vi + 1.1rem, 1.58rem);
  --font-size-lg: clamp(1.56rem, 1vi + 1.31rem, 2.11rem);
  --font-size-xl: clamp(1.95rem, 1.56vi + 1.56rem, 2.81rem);
  --font-size-2l: clamp(2.44rem, 2.38vi + 1.85rem, 3.75rem);
  --font-size-3l: clamp(3.05rem, 3.54vi + 2.17rem, 5rem);
  --font-size-4l: clamp(3.81rem, 5.18vi + 2.52rem, 6.66rem);

  --z-index-title: 20;
  --z-index-page-top: 50;
  --z-index-header: 100;
  --z-index-nav-header: calc(var(--z-index-header) + 1);

  --nav-header-height: calc(var(--spacing-base) * 4);
  --news-banner-height: calc(var(--spacing-sm) * 4);
  --header-height: calc(var(--nav-header-height) + var(--news-banner-height));
}

html {
  scroll-padding-top: var(--header-height);
  scroll-behavior: smooth;
  timeline-scope: --hero;
}

/* Header */
.fixed-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-index-header);
}

.nav-header {
  position: relative;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-base);
  z-index: var(--z-index-nav-header);
  height: var(--nav-header-height);
}

.nav-header .cluster {
  justify-content: space-between;
}

.header-logo {
  color: var(--color-black);
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-bold);
}

.header-nav {
  display: none;
  gap: var(--spacing-md);
  align-items: center;

  @media (min-width: 48rem) {
    display: flex;
  }
}

.nav-header a {
  color: var(--color-black);
  font-weight: var(--font-weight-normal);
}

.mobile-menu-checkbox {
  display: none;
}

.mobile-menu-toggle {
  display: flex;
  caret-color: transparent;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  position: absolute;
  right: var(--spacing-base);
  top: 50%;
  transform: translateY(-50%);
  gap: var(--spacing-xs);

  @media (min-width: 48rem) {
    display: none;
  }
}

.hamburger-line {
  width: 1rem;
  height: 0.125rem;
  background: var(--color-black);
  transition: all 0.3s ease;
}

.mobile-menu-checkbox:checked
  + .mobile-menu-toggle
  .hamburger-line:nth-child(1) {
  transform: rotate(45deg);
  position: relative;
  top: 6px;
}

.mobile-menu-checkbox:checked
  + .mobile-menu-toggle
  .hamburger-line:nth-child(2) {
  opacity: 0;
}

.mobile-menu-checkbox:checked
  + .mobile-menu-toggle
  .hamburger-line:nth-child(3) {
  transform: rotate(-45deg);
  position: relative;
  top: -6px;
}

.mobile-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--color-white);
  padding: var(--spacing-base);
  box-shadow: 0 4px 8px -4px rgba(0, 0, 0, 0.1);
}

.mobile-menu-checkbox:checked ~ .mobile-menu {
  display: block;
}

.mobile-menu-items {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.mobile-menu-items a {
  color: var(--color-black);
  font-weight: var(--font-weight-normal);
}

/* News Banner */
.news-banner {
  position: relative;
  background-color: var(--color-black);
  color: var(--color-white);
  padding: var(--spacing-sm);
  text-align: center;
  font-size: var(--font-size-sm);
  height: var(--news-banner-height);
}

/* Hero Section */
.hero-cover {
  display: grid;
  place-items: center;
  min-height: 100dvh;

  view-timeline-name: --hero;
  view-timeline-axis: block;
}

.hero-container {
  display: grid;
  grid-template-columns: 1fr;
  justify-items: center;
  gap: var(--spacing-lg);
  max-width: var(--breakpoint-desktop);
  padding: 0 var(--spacing-base);
}

.hero-title {
  font-size: var(--font-size-4l);
  font-weight: var(--font-weight-bold);
  text-align: center;
}

.hero-subtitle {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-normal);
  text-align: center;
  word-break: keep-all;
}

.hero-description {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
}

.sections {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

/* Feature Section */
.section {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
}

.section-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  text-align: center;
}

.feature-grid {
  --_column: 1;
  display: grid;
  grid-template-columns: repeat(var(--_column), 1fr);
  gap: var(--spacing-sm);

  @media (min-width: 40rem) {
    --_column: 2;
  }
  @media (min-width: 48rem) {
    --_column: 3;
  }
}

.feature-card {
  display: grid;
  border: 1px solid var(--color-border);
  padding: var(--spacing-base);
  grid-template-rows: subgrid;
  grid-template-areas:
    "icon"
    "title"
    "description";
  grid-row: span 3;
}

.card-icon {
  grid-area: icon;
  font-size: var(--font-size-base);
}

.card-title {
  grid-area: title;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
}

.card-description {
  grid-area: description;
  font-size: var(--font-size-sm);
}

/* Technology Tag Section */
.tech-tag {
  padding: var(--spacing-xs) var(--spacing-sm);
  background-color: var(--color-black);
  color: var(--color-white);
}

/* Demo Section */
.sidebar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-base);
}

.sidebar-video {
  flex-basis: 25rem;
  flex-grow: 1;
}

.sidebar-steps {
  flex-basis: 50%;
  flex-grow: 999;
}

.demo-video {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  padding: var(--spacing-base);
  background-color: var(--color-border);
}

.demo-title {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-bold);
}

.demo-description {
  font-size: var(--font-size-sm);
}

.step-items {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-sm);
}

.step-item {
  display: grid;
  grid-template-rows: subgrid;
  grid-template-areas:
    "title"
    "description";
  grid-row: span 2;

  padding: var(--spacing-base);
  border-top: 1px solid var(--color-border);
  border-right: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  border-left: 3px solid var(--color-black);
}

.step-item-title {
  grid-area: title;
  font-size: var(--font-size-base);
}

.step-item-description {
  grid-area: description;
  font-size: var(--font-size-sm);
}

/* Review Section */
.reel {
  display: flex;
  overflow-x: auto;
  --_gap: var(--spacing-sm);
  gap: var(--_gap);

  & > * {
    --_column: 1.5;
    flex-grow: 0;
    flex-shrink: 0;
    flex-basis: calc(
      (100% - (var(--_gap) * (var(--_column) - 1))) / var(--_column)
    );
    @media (min-width: 40rem) {
      --_column: 2.5;
    }
    @media (min-width: 48rem) {
      --_column: 3.5;
    }
  }
}

.review-card {
  display: grid;
  row-gap: var(--spacing-sm);
  border: 1px solid var(--color-border);
  background: var(--color-white);
  padding: var(--spacing-base);
}

.quote {
  font-style: italic;
  color: var(--color-black);
  font-size: var(--font-size-sm);
}

.reviewer {
  color: var(--color-gray-dark);
  font-size: var(--font-size-sm);
}

.rating {
  color: var(--color-black);
  font-size: var(--font-size-sm);
}

/* Pricing Section */
.price-items {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);

  & > * {
    flex-grow: 1;
    flex-basis: calc((45rem - 100%) * 999);
  }
}

.price-item {
  position: relative;
  display: grid;
  grid-template:
    "name" auto
    "." 0
    "price" auto
    "." var(--spacing-md)
    "features" auto
    "." var(--spacing-md)
    "button" auto / auto;

  border: 1px solid var(--color-border);
  padding: var(--spacing-base);

  &.popular {
    border-color: var(--color-black);
  }

  & > button {
    grid-area: button;
    width: fit-content;
    margin: 0 auto;
  }
}

.popular-badge {
  position: absolute;
  top: -1rem;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-black);
  color: var(--color-white);
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
}

.plan-name {
  grid-area: name;
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-bold);
  text-align: center;
}

.plan-price {
  grid-area: price;
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  text-align: center;

  & > span {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-normal);
    margin-left: var(--spacing-xs);
  }
}

.plan-features {
  grid-area: features;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xs);
  padding: 0 var(--spacing-sm);
}

.plan-feature {
  font-size: var(--font-size-sm);
  color: var(--color-gray-dark);
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-xs) 0;
}

/* Contact Section */

.contact-form {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
  max-width: var(--breakpoint-tablet);
  width: 100%;
  margin: 0 auto;
  padding: var(--spacing-base);
  border: 1px solid var(--color-border);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
}

input {
  padding: var(--spacing-xs);
  border: 1px solid var(--color-border);
  font-size: var(--font-size-base);

  &::placeholder {
    color: var(--color-border);
  }
}

textarea {
  padding: var(--spacing-xs);
  border: 1px solid var(--color-border);
  font-size: var(--font-size-base);
  resize: vertical;

  &::placeholder {
    color: var(--color-border);
  }
}

.contact-btn {
  width: fit-content;
  justify-self: center;
}

.contact-description {
  font-size: var(--font-size-sm);
  color: var(--color-gray-dark);
  text-align: center;
}

/* Footer Section */
.footer {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-base);
  background: var(--color-black);
  color: var(--color-white);
  padding: var(--spacing-base) 0;
}

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

.footer-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
}

.footer-description {
  font-size: var(--font-size-sm);
}

.footer-items {
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  max-width: var(--breakpoint-desktop);
  padding: 0 var(--spacing-base);
  margin: 0 auto;
}

.footer-item {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.footer-subtitle {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
}

.footer-link {
  font-size: var(--font-size-sm);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-base);
  border-top: 1px solid var(--color-gray-dark);
}

/* Utility Classes */
.cluster {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  justify-content: center;
  align-items: center;
}

.container {
  max-width: var(--breakpoint-desktop);
  margin-left: auto;
  margin-right: auto;
  padding: 0 var(--spacing-base);
}

/* Buttons */
.btn {
  padding: var(--spacing-base) var(--spacing-md);
  border: 1px solid var(--color-black);
  color: var(--color-black);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  cursor: pointer;
}

.btn-primary {
  background: var(--color-black);
  color: var(--color-white);
}

.btn-secondary {
  border: 1px solid var(--color-black);
  color: var(--color-gray-dark);
}

.btn-outline {
  border: 1px solid var(--color-black);
}

/* Sticky Section Titles */
.sticky-section-title {
  position: sticky;
  top: var(--header-height);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  padding: var(--spacing-base);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--spacing-md);
  z-index: var(--z-index-title);
}

.page-top-btn {
  position: fixed;
  bottom: var(--spacing-md);
  right: var(--spacing-md);
  width: 3.5rem;
  height: 3.5rem;
  background: var(--color-black);
  color: var(--color-white);
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: var(--z-index-page-top);

  opacity: 0;
  pointer-events: none;
  animation: show-btn linear both;
  animation-timeline: --hero;
  animation-duration: auto;
  animation-range: exit 0% exit 30%;
  @supports not (animation-timeline: --hero) {
    opacity: 1;
    pointer-events: auto;
  }
}

@keyframes show-btn {
  from {
    opacity: 0;
    pointer-events: none;
  }
  to {
    opacity: 1;
    pointer-events: auto;
  }
}

.page-top-arrow {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
}

.page-top-text {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
}