/* ==========================================================================
   FILE: static/css/marketing/content.css
   PURPOSE: светлая маркетинговая главная страница Ovelant
   ========================================================================== */

/* ==========================================================================
   Shared typography
   ========================================================================== */

.eyebrow,
.section-kicker {
  display: inline-flex;
  margin-bottom: 14px;
  color: var(--m-accent);
  font-size: 0.74rem;
  font-weight: 850;
  text-transform: uppercase;
  letter-spacing: 0.18em;
}

.hero-content h1,
.overview-heading h2,
.section-heading h2,
.platform-content h2,
.control-content h2,
.final-cta-card h2,
.faq-heading h2 {
  margin: 0;
  color: var(--m-text);
  font-family: var(--font-display);
  letter-spacing: -0.055em;
}

.overview-heading h2,
.section-heading h2,
.platform-content h2,
.control-content h2,
.final-cta-card h2,
.faq-heading h2 {
  font-size: clamp(2rem, 4vw, 3.35rem);
  line-height: 1.06;
}

.overview-heading p,
.section-heading p,
.platform-content p,
.control-content p,
.final-cta-card p {
  margin: 14px 0 0;
  color: var(--m-text-soft);
  font-size: 1.04rem;
}

/* ==========================================================================
   Buttons override for marketing page
   ========================================================================== */

.btn {
  min-height: 52px;
  padding: 0 24px;
  font-size: 0.96rem;
  font-weight: 850;
  border-radius: 13px;
}

.btn-primary {
  color: #FFFFFF;
  background: var(--brand-gradient-violet-horizon);
  box-shadow: 0 14px 32px rgba(106, 64, 248, 0.22);
}

.btn-primary:hover {
  background: var(--m-accent-dark);
}

.btn-secondary {
  color: var(--m-text);
  background: #FFFFFF;
  border: 1px solid var(--m-border-strong);
}

.btn-secondary:hover {
  border-color: #94A3B8;
  background: #F8FAFF;
}

/* ==========================================================================
   Full-width section backgrounds and transitions
   ========================================================================== */

.hero-section,
.overview-section,
#roles,
.platform-section,
#how-it-works,
.control-section,
.faq-section,
.final-cta {
  position: relative;
  overflow: hidden;
  isolation: isolate;
}

.hero-section > .container,
.overview-section > .container,
#roles > .container,
.platform-section > .container,
#how-it-works > .container,
.control-section > .container,
.faq-section > .container,
.final-cta > .container {
  position: relative;
  z-index: 2;
}

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

.hero-section {
  padding: 92px 0 154px;
  background:
    radial-gradient(circle at 88% 8%, rgba(106, 64, 248, 0.08), transparent 28%),
    radial-gradient(circle at 12% 82%, rgba(8, 18, 48, 0.055), transparent 32%),
    #FFFFFF;
}

.hero-section::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  z-index: 1;
  height: 92px;
  background: var(--m-bg-soft);
  clip-path: polygon(0 48%, 100% 0, 100% 100%, 0 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(430px, 0.92fr);
  align-items: center;
  gap: 92px;
}

.hero-content {
  max-width: 820px;
}

.hero-content h1 {
  max-width: 840px;
  font-size: clamp(3rem, 5.5vw, 5rem);
  line-height: 0.96;
  font-weight: 300;
  letter-spacing: -0.06em;
}

.hero-subtitle {
  max-width: 720px;
  margin: 24px 0 0;
  color: var(--m-text-soft);
  font-size: clamp(1.02rem, 1.22vw, 1.16rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.hero-note {
  margin-top: 26px;
  color: var(--m-text-muted);
  font-size: 0.92rem;
}

.hero-note span {
  display: inline-flex;
  padding-left: 14px;
  border-left: 2px solid var(--m-accent);
}

/* ==========================================================================
   Hero preview card
   ========================================================================== */

.role-card-preview {
  width: 100%;
  padding: 24px;
  border: 1px solid var(--m-border);
  border-radius: var(--m-radius-lg);
  background: #FFFFFF;
  box-shadow: var(--m-shadow-md);
}

.preview-header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.preview-header span,
.preview-header strong {
  color: var(--m-text-muted);
  font-size: 0.74rem;
  font-weight: 850;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.preview-header strong {
  color: var(--m-accent);
}

.preview-role {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 14px;
  padding: 16px;
  border: 1px solid var(--m-border);
  border-radius: var(--m-radius-md);
  background:
    linear-gradient(180deg, #FFFFFF, var(--m-surface-soft));
}

.preview-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  color: #FFFFFF;
  font-weight: 900;
  border-radius: 14px;
  background: var(--brand-gradient-violet-horizon);
}

.preview-role h2 {
  margin: 0;
  color: var(--m-text);
  font-size: 1.12rem;
}

.preview-role p {
  margin: 4px 0 0;
  color: var(--m-text-muted);
  font-size: 0.9rem;
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 14px;
}

.preview-block {
  padding: 14px;
  border: 1px solid var(--m-border);
  border-radius: var(--m-radius-sm);
  background: #FFFFFF;
}

.preview-block span {
  display: block;
  margin-bottom: 6px;
  color: var(--m-text);
  font-size: 0.76rem;
  font-weight: 850;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.preview-block p {
  margin: 0;
  color: var(--m-text-muted);
  font-size: 0.84rem;
}

/* ==========================================================================
   Overview section
   ========================================================================== */

.overview-section {
  padding: 0 0 98px;
  background: var(--m-bg);
}

.overview-panel {
  padding: clamp(32px, 4.8vw, 56px);
  border: 1px solid var(--m-border);
  border-radius: var(--m-radius-xl);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(248, 250, 255, 0.94));
  box-shadow: var(--m-shadow-sm);
}

.overview-heading {
  max-width: 880px;
  margin-bottom: 40px;
}

.overview-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.overview-item {
  position: relative;
  min-height: 168px;
  padding: 20px;
  border: 1px solid var(--m-border);
  border-radius: var(--m-radius-md);
  background: var(--m-surface-soft);
}

.overview-item::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 20px;
  right: 20px;
  height: 2px;
  border-radius: 999px;
  background: var(--m-accent);
}

.overview-item span,
.step-card span,
.control-item span {
  display: inline-flex;
  margin-bottom: 22px;
  color: var(--m-accent);
  font-weight: 850;
}

.overview-item h3,
.step-card h3,
.control-item h3,
.platform-item h3,
.role-tile h3 {
  margin: 0;
}

.overview-item h3 {
  color: var(--m-text);
  font-size: 1.06rem;
  letter-spacing: -0.03em;
}

.overview-item p {
  margin: 8px 0 0;
  color: var(--m-text-muted);
  font-size: 0.92rem;
}

/* ==========================================================================
   Common section spacing
   ========================================================================== */

.section {
  padding: 100px 0;
}

.section-heading {
  max-width: 880px;
  margin-bottom: 44px;
}

/* ==========================================================================
   Roles section
   ========================================================================== */

#roles {
  padding: 104px 0 128px;
  background: var(--m-bg);
}

#roles::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  z-index: 1;
  height: 92px;
  background: #FFFFFF;
  clip-path: polygon(0 100%, 100% 42%, 100% 100%, 0 100%);
}

.roles-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.role-tile {
  position: relative;
  padding: 26px;
  border: 1px solid var(--m-border);
  border-radius: var(--m-radius-lg);
  background: #FFFFFF;
  box-shadow: var(--m-shadow-sm);
}

.role-tile-featured {
  border-color: var(--m-accent-border);
  background:
    linear-gradient(180deg, rgba(106, 64, 248, 0.1), #FFFFFF 42%);
}

.role-tile-featured::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 24px;
  right: 24px;
  height: 2px;
  border-radius: 999px;
  background: var(--m-accent);
}

.tile-top {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 28px;
}

.tile-number,
.tile-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 0 11px;
  font-size: 0.78rem;
  font-weight: 850;
  border-radius: 999px;
}

.tile-number {
  color: #FFFFFF;
  background: var(--brand-gradient-violet-horizon);
}

.tile-tag {
  color: var(--m-accent);
  background: var(--m-accent-soft);
}

.role-tile h3 {
  color: var(--m-text);
  font-size: 1.24rem;
  letter-spacing: -0.04em;
}

.role-tile p {
  margin: 10px 0 18px;
  color: var(--m-text-soft);
  font-size: 0.94rem;
}

.role-tile ul {
  display: grid;
  gap: 8px;
}

.role-tile li {
  position: relative;
  padding-left: 20px;
  color: var(--m-text-soft);
  font-size: 0.9rem;
}

.role-tile li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--m-accent);
  font-weight: 900;
}

/* ==========================================================================
   Platform section
   ========================================================================== */

.platform-section {
  padding: 154px 0 114px;
  background: #FFFFFF;
}

.platform-grid,
.control-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.96fr) minmax(0, 1.04fr);
  gap: 76px;
  align-items: start;
}

.platform-list,
.control-cards {
  display: grid;
  gap: 14px;
}

.platform-item {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 16px;
  padding: 20px;
  border: 1px solid var(--m-border);
  border-radius: var(--m-radius-md);
  background: #FFFFFF;
  box-shadow: var(--m-shadow-sm);
}

.platform-item span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  color: #FFFFFF;
  font-weight: 850;
  border-radius: 14px;
  background: var(--brand-gradient-violet-horizon);
}

.platform-item h3 {
  color: var(--m-text);
  font-size: 1.08rem;
}

.platform-item p {
  margin: 5px 0 0;
  color: var(--m-text-soft);
  font-size: 0.94rem;
}

/* ==========================================================================
   How it works section
   ========================================================================== */

#how-it-works {
  padding: 138px 0 124px;
  background: var(--m-bg-muted);
}

#how-it-works::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: -1px;
  z-index: 1;
  height: 92px;
  background: #FFFFFF;
  clip-path: polygon(0 0, 100% 0, 100% 42%, 0 100%);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.step-card {
  padding: 24px;
  border: 1px solid var(--m-border);
  border-radius: var(--m-radius-md);
  background: #FFFFFF;
  box-shadow: var(--m-shadow-sm);
}

.step-card h3 {
  color: var(--m-text);
  font-size: 1.08rem;
}

.step-card p {
  margin: 8px 0 0;
  color: var(--m-text-soft);
  font-size: 0.92rem;
}

/* ==========================================================================
   Control section
   ========================================================================== */

.control-section {
  padding: 138px 0 124px;
  background: #FFFFFF;
}

.control-section::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: -1px;
  z-index: 1;
  height: 92px;
  background: var(--m-bg-muted);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 42%);
}

.control-cards {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.control-item {
  padding: 24px;
  border: 1px solid var(--m-border);
  border-radius: var(--m-radius-md);
  background: var(--m-surface-soft);
}

.control-item h3 {
  color: var(--m-text);
  font-size: 1.08rem;
}

.control-item p {
  margin: 8px 0 0;
  color: var(--m-text-soft);
  font-size: 0.92rem;
}

/* ==========================================================================
   FAQ section
   ========================================================================== */

.faq-section {
  padding: 138px 0 108px;
  background: var(--m-bg-soft);
}

.faq-section::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: -1px;
  z-index: 1;
  height: 92px;
  background: #FFFFFF;
  clip-path: polygon(0 0, 100% 0, 100% 42%, 0 100%);
}

.faq-heading {
  max-width: 880px;
  margin-bottom: 36px;
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-item {
  border: 1px solid var(--m-border);
  border-radius: var(--m-radius-md);
  background: #FFFFFF;
  box-shadow: var(--m-shadow-sm);
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 82px;
  padding: 0 24px;
  cursor: pointer;
  list-style: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary span {
  color: var(--m-text);
  font-size: 1.08rem;
  font-weight: 750;
  letter-spacing: -0.025em;
}

.faq-item summary i {
  position: relative;
  flex: 0 0 auto;
  width: 32px;
  height: 32px;
  border: 1px solid var(--m-accent-border);
  border-radius: 10px;
  background: var(--m-accent-soft);
}

.faq-item summary i::before,
.faq-item summary i::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 14px;
  height: 2px;
  border-radius: 999px;
  background: var(--m-accent);
  transform: translate(-50%, -50%);
}

.faq-item summary i::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.faq-item[open] summary i::after {
  display: none;
}

.faq-answer {
  padding: 0 24px 24px;
}

.faq-answer p {
  max-width: 780px;
  margin: 0;
  color: var(--m-text-soft);
  font-size: 0.98rem;
}

/* ==========================================================================
   Final CTA section
   ========================================================================== */

.final-cta {
  padding: 118px 0 112px;
  background: var(--m-bg-soft);
}

.final-cta-card {
  padding: clamp(34px, 6vw, 66px);
  text-align: center;
  border: 1px solid var(--m-accent-border);
  border-radius: var(--m-radius-xl);
  background:
    radial-gradient(circle at top right, rgba(106, 64, 248, 0.12), transparent 34%),
    linear-gradient(180deg, rgba(106, 64, 248, 0.08), #FFFFFF 46%);
  box-shadow: var(--m-shadow-md);
}

.final-cta-card .section-kicker {
  margin-bottom: 16px;
}

.final-cta-card h2 {
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}

.final-cta-card p {
  max-width: 650px;
  margin-left: auto;
  margin-right: auto;
}

.final-cta-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

/* ==========================================================================
   Reveal animations
   ========================================================================== */

.reveal {
  opacity: 1;
  transform: none;
}

html.js-enabled .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity 0.62s ease,
    transform 0.62s ease;
}

html.js-enabled .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

html.js-enabled .reveal-delay-1 {
  transition-delay: 0.1s;
}

html.js-enabled .reveal-delay-2 {
  transition-delay: 0.18s;
}

html.js-enabled .reveal-delay-3 {
  transition-delay: 0.26s;
}

html.js-enabled .reveal-delay-4 {
  transition-delay: 0.34s;
}

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

@media (max-width: 1080px) {
  .hero-grid,
  .platform-grid,
  .control-grid {
    grid-template-columns: 1fr;
  }

  .roles-grid,
  .overview-grid,
  .steps-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .role-card-preview {
    max-width: 680px;
  }
}

@media (max-width: 820px) {
  .hero-section {
    padding: 64px 0 112px;
  }

  .section,
  .platform-section,
  #how-it-works,
  .control-section,
  .faq-section {
    padding-top: 96px;
    padding-bottom: 76px;
  }

  .hero-section::after,
  #roles::after,
  #how-it-works::before,
  .control-section::before,
  .faq-section::before {
    height: 64px;
  }

  .control-cards {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .hero-content h1 {
    font-size: clamp(2.35rem, 11vw, 3.4rem);
  }

  .hero-actions,
  .final-cta-actions {
    flex-direction: column;
  }

  .preview-grid,
  .roles-grid,
  .overview-grid,
  .steps-grid {
    grid-template-columns: 1fr;
  }

  .preview-role {
    grid-template-columns: 1fr;
  }

  .section,
  .platform-section,
  #how-it-works,
  .control-section,
  .faq-section {
    padding-top: 78px;
    padding-bottom: 58px;
  }

  .hero-section::after,
  #roles::after,
  #how-it-works::before,
  .control-section::before,
  .faq-section::before {
    height: 48px;
  }

  .overview-panel {
    padding: 24px;
    border-radius: 26px;
  }

  .faq-item summary {
    min-height: 76px;
    padding: 0 20px;
  }

  .faq-item summary span {
    font-size: 1rem;
  }

  .faq-answer {
    padding: 0 20px 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  html.js-enabled .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}