/* ============================================
   AStone Tech Landing Page — SAP Blue Theme
   Primary: #0057D2  Hero BG: #0040B0
   Brand: #0070F2    Dark: #002A86
   ============================================ */

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* SAP Blue System */
  --blue-1: #EBF8FF;
  --blue-2: #D1EFFF;
  --blue-3: #A6E0FF;
  --blue-4: #89D1FF;
  --blue-5: #4DB1FF;
  --blue-6: #1B90FF;
  --blue-7: #0070F2;
  --blue-8: #0057D2;
  --blue-9: #0040B0;
  --blue-10: #002A86;
  --blue-11: #00144A;

  /* Semantic */
  --color-primary: var(--blue-8);
  --color-primary-hover: var(--blue-9);
  --color-primary-dark: var(--blue-10);
  --color-hero-bg: var(--blue-9);

  /* Surfaces */
  --color-bg: #FFFFFF;
  --color-surface: #F8FAFC;
  --color-surface-alt: #F1F5F9;
  --color-border: #E2E8F0;
  --color-border-light: #F0F4F8;

  /* Text */
  --color-text: #0F172A;
  --color-text-secondary: #475569;
  --color-text-tertiary: #94A3B8;
  --color-text-inverse: #FFFFFF;

  /* Type Scale */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 4.5rem);

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,20,74,0.05);
  --shadow-md: 0 4px 12px rgba(0,20,74,0.08);
  --shadow-lg: 0 12px 32px rgba(0,20,74,0.12);
  --shadow-xl: 0 20px 48px rgba(0,20,74,0.16);

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --transition: 180ms var(--ease-out);

  /* Fonts */
  --font-display: 'Cabinet Grotesk', 'Inter', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Widths */
  --content-max: 1200px;
  --content-narrow: 720px;
}

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  min-height: 100dvh;
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
}

img, svg { display: block; max-width: 100%; height: auto; }
a { text-decoration: none; color: inherit; }
button { cursor: pointer; background: none; border: none; font: inherit; }
h1, h2, h3, h4, h5, h6 { line-height: 1.15; text-wrap: balance; }
p { text-wrap: pretty; }

::selection {
  background: rgba(0, 87, 210, 0.2);
  color: var(--color-text);
}

.container {
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  padding-inline: var(--space-6);
}

/* --- Header --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: #ffffff;
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow 0.3s;
}

.header--scrolled {
  box-shadow: var(--shadow-md);
}

.header--hero {
  background: #ffffff;
  backdrop-filter: blur(20px);
}

.header--hero .header__link,
.header--hero .header__wordmark {
  color: #000000;
}
.header--hero .header__wordmark-accent {
  color: var(--color-primary);
}
.header--hero .btn--ghost {
  color: var(--color-text-secondary);
  border-color: var(--color-border);
}
.header--hero .btn--ghost:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.header--hero .header__hamburger span {
  background: #000000;
}

.header__inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--space-8);
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: var(--space-8);
  height: 64px;
}

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
  margin-right: var(--space-8);
}

.header__wordmark {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 1.25rem;
  color: #000000;
  letter-spacing: -0.02em;
}

.header__wordmark-accent {
  color: var(--color-primary);
}

.header__nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  margin-right: auto;
}

.header__link {
  font-size: var(--text-sm);
  font-weight: 300;
  color: #000000;
  transition: color var(--transition);
  white-space: nowrap;
  padding: var(--space-2) 0;
  position: relative;
}

.header__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width 0.3s var(--ease-out);
}

.header__link:hover::after {
  width: 100%;
}

.header__link:hover {
  color: var(--color-primary);
}

.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-shrink: 0;
  margin-left: auto;
}

.header__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  width: 40px;
  height: 40px;
  justify-content: center;
  align-items: center;
}

.header__hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background: #000000;
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

.header__hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.header__hamburger.active span:nth-child(2) {
  opacity: 0;
}
.header__hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Nav */
.mobile-nav {
  position: absolute;
  top: calc(64px + 10px);
  right: var(--space-4);
  left: auto;
  width: 280px;
  z-index: 99;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  max-height: 75vh;
  overflow-y: auto;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-10px);
  transition: opacity 0.3s, transform 0.3s;
}

.mobile-nav.active {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.mobile-nav__inner {
  display: flex;
  flex-direction: column;
  padding: var(--space-4);
  gap: var(--space-3);
}

.mobile-nav__link {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 300;
  color: #000000;
  opacity: 0.9;
  transition: opacity var(--transition);
  padding: var(--space-2) 0;
}

.mobile-nav__link:hover {
  opacity: 1;
}

.mobile-nav__actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-top: var(--space-3);
  width: 100%;
}

.mobile-nav__actions .btn {
  font-size: var(--text-sm);
  font-weight: 300;
  padding: 0.625rem 1.25rem;
  width: 100%;
  justify-content: center;
}

.mobile-nav__actions .btn--primary {
  background: var(--color-primary);
  color: #ffffff;
  border-color: var(--color-primary);
}

.mobile-nav__actions .btn--ghost {
  background: transparent;
  color: #000000;
  border-color: var(--color-border);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.625rem 1.25rem;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 300;
  border-radius: var(--radius-lg);
  white-space: nowrap;
  transition: all var(--transition);
  border: 1.5px solid transparent;
}

.btn__icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  border-color: var(--color-primary);
}

.btn--primary:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  box-shadow: 0 4px 16px rgba(0, 87, 210, 0.35);
}

.btn--ghost {
  background: transparent;
  color: #000000;
  border-color: var(--color-border);
  font-weight: 500;
}

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

.btn--outline {
  background: transparent;
  color: var(--color-text-inverse);
  border-color: rgba(255, 255, 255, 0.4);
}

.btn--outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.7);
}

.btn--white {
  background: #fff;
  color: var(--blue-9);
  border-color: #fff;
}

.btn--white:hover {
  background: var(--blue-1);
  border-color: var(--blue-1);
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}

.btn--outline-white {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.4);
}

.btn--outline-white:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.7);
}

.btn--lg {
  padding: clamp(0.625rem, 0.5rem + 0.5vw, 0.875rem) clamp(1.25rem, 1rem + 1vw, 2rem);
  font-size: clamp(0.8rem, 0.7rem + 0.4vw, 1rem);
  font-weight: 300;
  border-radius: var(--radius-md);
  letter-spacing: 0.01em;
}

.btn--full { width: 100%; }

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 75vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: var(--space-8);
  padding: calc(64px + var(--space-12)) 80px var(--space-12) 80px;
  background: linear-gradient(135deg, var(--blue-11) 0%, var(--blue-10) 25%, var(--blue-9) 50%, var(--blue-8) 100%);
  overflow: hidden;
}

.hero > .hero__content {
  justify-self: start;
  text-align: left;
}

.hero > .hero__visual {
  justify-self: end;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 60%;
  height: 100%;
  background: radial-gradient(circle at 70% 50%, rgba(77, 177, 255, 0.15) 0%, transparent 60%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 200px;
  background: linear-gradient(to top, rgba(0, 20, 74, 0.3), transparent);
  pointer-events: none;
}

.hero__bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 800"><defs><linearGradient id="g" x1="0%" y1="0%" x2="100%" y2="100%"><stop offset="0%" style="stop-color:%2300144A;stop-opacity:0.03"/><stop offset="100%" style="stop-color:%230057D2;stop-opacity:0.08"/></linearGradient></defs><rect fill="url(%23g)" width="1440" height="800"/></svg>');
  background-size: cover;
  z-index: 0;
}

.hero__content {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 600px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-full);
  font-size: clamp(0.65rem, 0.6rem + 0.25vw, 0.75rem);
  font-weight: 600;
  color: var(--blue-2);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: var(--space-4);
  backdrop-filter: blur(10px);
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 1.5rem + 2.5vw, 3.25rem);
  font-weight: 800;
  color: var(--color-text-inverse);
  letter-spacing: -0.03em;
  margin-bottom: var(--space-4);
  line-height: 1.15;
}

.hero__subtitle {
  font-size: clamp(0.875rem, 0.8rem + 0.4vw, 1.1rem);
  color: rgba(255, 255, 255, 0.8);
  max-width: 520px;
  margin-bottom: var(--space-6);
  line-height: 1.6;
  font-weight: 400;
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.hero__cta .btn--lg {
  flex: 0 1 auto;
  min-width: 180px;
  max-width: 100%;
}

.hero__stats {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

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

.hero__stat-value {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 1rem + 0.8vw, 1.75rem);
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.02em;
}

.hero__stat-label {
  font-size: clamp(0.7rem, 0.65rem + 0.25vw, 0.85rem);
  color: rgba(255, 255, 255, 0.7);
  white-space: nowrap;
  font-weight: 500;
}

.hero__stat-divider {
  width: 1px;
  height: 32px;
  background: rgba(255, 255, 255, 0.2);
}

.hero__visual {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 700px;
  margin: 0 auto;
}

.hero__mockup {
  background: #1a1a2e;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: 0 32px 64px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(255, 255, 255, 0.05);
  transform: perspective(1200px) rotateY(-4deg) rotateX(2deg);
  transition: transform 0.6s var(--ease-out);
  width: 100%;
}

.hero__mockup:hover {
  transform: perspective(1200px) rotateY(-1deg) rotateX(1deg);
}

.hero__mockup-bar {
  display: flex;
  gap: 4px;
  padding: 8px 12px;
  background: #0d0d1a;
}

.hero__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #333;
}
.hero__dot:first-child { background: #ff5f57; }
.hero__dot:nth-child(2) { background: #febc2e; }
.hero__dot:nth-child(3) { background: #28c840; }

.hero__mockup-img {
  width: 100%;
  display: block;
}

/* --- Trust Bar --- */
.trust-bar {
  position: relative;
  z-index: 1;
  background: var(--blue-11);
  padding: var(--space-8) 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.trust-bar__label {
  font-size: var(--text-xs);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.4);
  text-align: center;
  margin-bottom: var(--space-4);
}

.trust-bar__items {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.trust-bar__item {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
  color: rgba(255, 255, 255, 0.2);
  letter-spacing: -0.01em;
}

.trust-bar__dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
}

/* --- Applications --- */
.applications {
  padding: clamp(var(--space-16), 8vw, var(--space-24)) 0;
  background: var(--color-surface);
}

.applications-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.application-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: var(--space-8);
  border-radius: var(--radius-2xl);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  transition: all 0.3s var(--ease-out);
  text-decoration: none;
  color: inherit;
}

.application-card:hover {
  border-color: var(--blue-5);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.application-card__icon-wrap {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--blue-8), var(--blue-7));
  color: #fff;
  margin-bottom: var(--space-6);
}

.application-card__icon {
  width: 28px;
  height: 28px;
}

.application-card__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-3);
  letter-spacing: -0.01em;
}

.application-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-6);
  flex-grow: 1;
}

.application-card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary);
  transition: gap 0.3s var(--ease-out);
}

.application-card__arrow {
  width: 16px;
  height: 16px;
}

.application-card:hover .application-card__link {
  gap: var(--space-3);
}

/* --- Section Header --- */
.section-header {
  text-align: center;
  max-width: var(--content-narrow);
  margin: 0 auto var(--space-12);
}

.section-header__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.03em;
  margin-bottom: var(--space-4);
}

.section-header__desc {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.section-header--light .section-header__title {
  color: var(--color-text-inverse);
}
.section-header--light .section-header__desc {
  color: rgba(255, 255, 255, 0.7);
}

/* --- What Is / Features --- */
.what-is {
  padding: clamp(var(--space-16), 8vw, var(--space-32)) 0;
  background: var(--color-bg);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.feature-card {
  padding: var(--space-8);
  border-radius: var(--radius-2xl);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  transition: box-shadow 0.3s, transform 0.3s;
}

.feature-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.feature-card--highlight {
  background: linear-gradient(135deg, var(--blue-9), var(--blue-8));
  border-color: transparent;
  color: var(--color-text-inverse);
}

.feature-card--highlight .feature-card__desc {
  color: rgba(255, 255, 255, 0.75);
}

.feature-card--highlight .feature-card__icon-wrap {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
}

.feature-card__icon-wrap {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  background: var(--blue-1);
  color: var(--color-primary);
  margin-bottom: var(--space-6);
}

.feature-card__icon {
  width: 24px;
  height: 24px;
}

.feature-card__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-3);
  letter-spacing: -0.01em;
}

.feature-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* --- Modules --- */
.modules {
  padding: clamp(var(--space-16), 8vw, var(--space-32)) 0;
  background: var(--color-surface);
}

.modules-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

.module-card {
  position: relative;
  padding: var(--space-6) var(--space-6) var(--space-8);
  border-radius: var(--radius-xl);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  transition: all 0.3s var(--ease-out);
  overflow: hidden;
}

.module-card:hover {
  border-color: var(--blue-5);
  box-shadow: var(--shadow-md), 0 0 0 1px var(--blue-5);
  transform: translateY(-2px);
}

.module-card__number {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--color-text-tertiary);
}

.module-card__icon-wrap {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--blue-1);
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.module-card__icon-wrap svg {
  width: 20px;
  height: 20px;
}

.module-card__title {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-2);
  letter-spacing: -0.01em;
}

.module-card__desc {
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
  line-height: 1.65;
}

/* --- Workflow --- */
.workflow {
  padding: clamp(var(--space-16), 8vw, var(--space-32)) 0;
  background: linear-gradient(135deg, var(--blue-11) 0%, var(--blue-9) 100%);
}

.workflow-pipeline {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0;
  margin-bottom: var(--space-12);
  padding: var(--space-8) var(--space-4);
}

.workflow-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
}

.workflow-step__dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--blue-5);
  border: 3px solid var(--blue-3);
  box-shadow: 0 0 12px rgba(77, 177, 255, 0.4);
}

.workflow-step--final .workflow-step__dot {
  background: #28c840;
  border-color: #86efac;
  box-shadow: 0 0 12px rgba(40, 200, 64, 0.4);
}

.workflow-step__label {
  font-size: var(--text-xs);
  font-weight: 600;
  color: rgba(255, 255, 255, 0.8);
  white-space: nowrap;
}

.workflow-step__line {
  width: clamp(24px, 4vw, 56px);
  height: 2px;
  background: linear-gradient(90deg, var(--blue-5), var(--blue-3));
  opacity: 0.4;
  margin-top: -20px;
}

.workflow-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.workflow-info-card {
  padding: var(--space-6);
  border-radius: var(--radius-xl);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(8px);
}

.workflow-info-card__icon {
  width: 32px;
  height: 32px;
  color: var(--blue-4);
  margin-bottom: var(--space-4);
}

.workflow-info-card__title {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-text-inverse);
  margin-bottom: var(--space-2);
}

.workflow-info-card__desc {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.65;
}

/* --- Benefits --- */
.benefits {
  padding: clamp(var(--space-16), 8vw, var(--space-32)) 0;
  background: var(--color-bg);
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.benefit-card {
  text-align: center;
  padding: var(--space-8) var(--space-5);
  border-radius: var(--radius-2xl);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  transition: all 0.3s;
}

.benefit-card:hover {
  border-color: var(--blue-5);
  box-shadow: var(--shadow-md);
}

.benefit-card__value {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.03em;
  margin-bottom: var(--space-2);
}

.benefit-card__label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.benefit-card__desc {
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* --- FAQ --- */
.faq {
  padding: clamp(var(--space-16), 8vw, var(--space-32)) 0;
  background: var(--color-surface);
}

.faq-list {
  max-width: var(--content-narrow);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: var(--color-bg);
  overflow: hidden;
  transition: border-color 0.3s;
}

.faq-item[open] {
  border-color: var(--blue-5);
}

.faq-item__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-6);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  list-style: none;
  user-select: none;
}

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

.faq-item__chevron {
  width: 20px;
  height: 20px;
  color: var(--color-text-tertiary);
  transition: transform 0.3s;
  flex-shrink: 0;
}

.faq-item[open] .faq-item__chevron {
  transform: rotate(180deg);
}

.faq-item__answer {
  padding: 0 var(--space-6) var(--space-5);
}

.faq-item__answer p {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* --- CTA Section --- */
.cta-section {
  padding: clamp(var(--space-12), 6vw, var(--space-20)) 0;
  background: var(--color-bg);
}

.cta-block {
  text-align: center;
  padding: clamp(var(--space-12), 6vw, var(--space-20)) var(--space-8);
  border-radius: var(--radius-2xl);
  background: linear-gradient(135deg, var(--blue-9) 0%, var(--blue-8) 60%, var(--blue-7) 100%);
  position: relative;
  overflow: hidden;
}

.cta-block::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(77, 177, 255, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.cta-block__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--color-text-inverse);
  letter-spacing: -0.03em;
  margin-bottom: var(--space-4);
  position: relative;
}

.cta-block__desc {
  font-size: var(--text-base);
  color: rgba(255, 255, 255, 0.7);
  max-width: 520px;
  margin: 0 auto var(--space-8);
  line-height: 1.7;
  position: relative;
}

.cta-block__actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-4);
  position: relative;
}

/* --- Footer --- */
.footer {
  padding: var(--space-16) 0 var(--space-8);
  background: var(--blue-11);
  color: rgba(255, 255, 255, 0.6);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}

.footer__brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.footer__brand .header__wordmark {
  color: var(--color-text-inverse);
}

.footer__brand .header__wordmark-accent {
  color: var(--blue-4);
}

.footer__tagline {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.45);
  max-width: 280px;
  line-height: 1.6;
}

.footer__col {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer__heading {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.35);
  margin-bottom: var(--space-1);
}

.footer__link {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--transition);
}

.footer__link:hover {
  color: var(--blue-4);
}

.footer__bottom {
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.3);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
}

.footer__social {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.6);
  transition: all 0.3s var(--ease-out);
}

.footer__social-link:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
  transform: translateY(-2px);
}

.footer__social-icon {
  width: 20px;
  height: 20px;
}

/* --- Animations --- */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
    padding: calc(64px + var(--space-4)) 50px var(--space-4);
    gap: var(--space-3);
  }

  .hero > .hero__content {
    justify-self: start;
    max-width: 100%;
    text-align: left;
  }

  .hero > .hero__visual {
    display: none;
  }

  .hero__badge {
    font-size: 0.6rem;
    padding: 0.2rem 0.5rem;
    margin-bottom: var(--space-2);
  }

  .hero__title {
    font-size: clamp(1.25rem, 1rem + 2.5vw, 1.75rem);
    margin-bottom: var(--space-2);
    line-height: 1.2;
  }

  .hero__subtitle {
    font-size: clamp(0.7rem, 0.65rem + 0.4vw, 0.85rem);
    margin-bottom: var(--space-3);
    max-width: 100%;
    line-height: 1.5;
  }

  .hero__cta {
    margin-bottom: var(--space-3);
    gap: var(--space-2);
    flex-direction: row;
    flex-wrap: nowrap;
  }

  .hero__cta .btn--lg {
    width: auto;
    min-width: 140px;
    max-width: 200px;
    flex: 0 0 auto;
    padding: 0.6rem 1rem !important;
    font-size: 0.7rem !important;
    text-align: center;
  }

  .btn--lg {
    padding: 0.625rem 1.25rem !important;
    font-size: 0.8rem !important;
    white-space: nowrap;
  }

  .hero__stats {
    gap: var(--space-2);
    padding-top: var(--space-2);
    flex-wrap: wrap;
  }

  .hero__stat-value {
    font-size: clamp(0.9rem, 0.8rem + 0.6vw, 1.1rem);
  }

  .hero__stat-label {
    font-size: 0.6rem;
  }

  .hero__stat-divider {
    height: 20px;
  }

  .hero__mockup {
    transform: none;
    max-width: 100%;
    width: 100%;
    margin: 0;
  }
  .hero__mockup:hover {
    transform: none;
  }

  .hero__mockup-img {
    width: 100%;
    height: auto;
    display: block;
  }

  .hero__mockup-bar {
    padding: 6px 10px;
    gap: 3px;
  }

  .hero__dot {
    width: 6px;
    height: 6px;
  }

  .hero__visual {
    max-width: 100%;
    width: 100%;
    overflow: hidden;
  }

  .applications-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .feature-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .modules-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .benefits-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }
}

@media (max-width: 768px) {
  .header__nav {
    display: none;
  }
  .header__actions .btn--ghost,
  .header__actions .btn--primary {
    display: none;
  }
  .header__hamburger {
    display: flex;
  }

  .hero__stats {
    flex-wrap: wrap;
    gap: var(--space-4);
  }
  .hero__stat-divider {
    display: none;
  }

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

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

  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  .hero__cta {
    flex-direction: column;
  }

  .workflow-pipeline {
    justify-content: flex-start;
    overflow-x: auto;
    padding: var(--space-4);
  }
}

@media (max-width: 480px) {
  .hero__title {
    font-size: clamp(1.75rem, 1rem + 3.5vw, 3rem);
  }
  .cta-block {
    padding: var(--space-10) var(--space-5);
  }
  .cta-block__actions {
    flex-direction: column;
    align-items: center;
  }
}

/* Focus visible */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}