/* ============================================================
   PROFOUND — Global Stylesheet
   B2B Market Research Intelligence Platform
   ============================================================ */

/* ===== RESET ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; scroll-behavior: smooth; }
body { font-family: 'Inter', sans-serif; color: #1a1a2e; line-height: 1.5; background: #fff; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul, ol { list-style: none; }

/* ===== DESIGN TOKENS ===== */
:root {
  /* Colors */
  --navy: #031E3A;
  --navy-light: #0a2a4a;
  --denim: #0B66C3;
  --denim-hover: #0a5baf;
  --white: #FFFFFF;
  --off-white: #F7F7F8;
  --gray-50: #F9FAFB;
  --gray-100: #F3F4F6;
  --gray-200: #E5E7EB;
  --gray-300: #D1D5DB;
  --gray-400: #9CA3AF;
  --gray-500: #6B7280;
  --gray-600: #4B5563;
  --gray-700: #374151;
  --gray-800: #1F2937;
  --gray-900: #111827;
  --border-light: rgba(255,255,255,0.2);
  --border-dark: #E5E7EB;
  --star-gold: #F5A623;

  /* Typography */
  --font-heading: 'Sora', sans-serif;
  --font-body: 'Inter', sans-serif;
  --text-tiny: 12px;
  --text-small: 16px;
  --text-regular: 18px;
  --text-medium: 20px;
  --heading-6: 24px;
  --heading-5: 32px;
  --heading-4: 40px;
  --heading-3: 48px;
  --heading-2: 56px;
  --heading-1: 64px;

  /* Spacing */
  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 32px;
  --space-xl: 48px;
  --space-2xl: 64px;
  --space-3xl: 80px;
  --section-padding: 80px;
  --page-padding: 64px;

  /* Layout */
  --container-max: 1280px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;

  /* Transitions */
  --transition: 0.2s ease;
  --transition-slow: 0.35s ease;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 { font-family: var(--font-heading); font-weight: 700; }
h1 { font-size: var(--heading-1); line-height: 1.1; letter-spacing: -1.5px; }
h2 { font-size: var(--heading-2); line-height: 1.15; letter-spacing: -1px; }
h3 { font-size: var(--heading-3); line-height: 1.2; letter-spacing: -0.48px; }
h4 { font-size: var(--heading-4); line-height: 1.3; letter-spacing: -0.4px; }
h5 { font-size: var(--heading-5); line-height: 1.3; letter-spacing: -0.32px; }
h6 { font-size: var(--heading-6); line-height: 1.3; letter-spacing: -0.24px; }

.text-tiny { font-size: var(--text-tiny); }
.text-small { font-size: var(--text-small); }
.text-regular { font-size: var(--text-regular); }
.text-medium { font-size: var(--text-medium); }
.text-muted { color: var(--gray-500); }
.text-muted-light { color: rgba(255,255,255,0.7); }
.text-center { text-align: center; }
.text-white { color: var(--white); }

.subheading {
  font-family: var(--font-body);
  font-size: var(--text-small);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ===== LAYOUT ===== */
.container {
  max-width: var(--container-max);
  width: 100%;
  margin: 0 auto;
  padding: 0 var(--page-padding);
}

.section {
  padding: var(--section-padding) 0;
}

.section--dark {
  background: var(--navy);
  color: var(--white);
}

.section--light {
  background: var(--white);
  color: var(--gray-900);
}

.section--gray {
  background: var(--gray-50);
  color: var(--gray-900);
}

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-lg); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-lg); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-lg); }

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-size: var(--text-regular);
  font-weight: 500;
  line-height: 1.5;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn--primary {
  background: var(--denim);
  border: 1px solid var(--denim);
  color: var(--white);
}
.btn--primary:hover { background: var(--denim-hover); border-color: var(--denim-hover); }

.btn--secondary-light {
  background: transparent;
  border: 1px solid var(--border-light);
  color: var(--white);
}
.btn--secondary-light:hover { border-color: rgba(255,255,255,0.4); background: rgba(255,255,255,0.05); }

.btn--secondary-dark {
  background: transparent;
  border: 1px solid var(--border-dark);
  color: var(--gray-900);
}
.btn--secondary-dark:hover { border-color: var(--gray-400); background: var(--gray-50); }

.btn--full { width: 100%; }
.btn--sm { padding: 8px 16px; font-size: var(--text-small); }
.btn--lg { padding: 16px 32px; font-size: var(--text-medium); }

/* ===== NAVIGATION ===== */
.nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--white);
  border-bottom: 1px solid var(--border-dark);
}

.nav--dark {
  background: var(--navy);
  border-bottom: 1px solid var(--border-light);
}

.nav__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--page-padding);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav__logo {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 24px;
  letter-spacing: -0.5px;
}

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

.nav__link {
  font-size: 14px;
  font-weight: 500;
  transition: opacity var(--transition);
  position: relative;
  padding: 8px 0;
}

.nav__link:hover { opacity: 0.7; }

.nav__link--dropdown::after {
  content: '';
  display: inline-block;
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 4px solid currentColor;
  margin-left: 6px;
  vertical-align: middle;
}

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

.nav__search {
  width: 20px;
  height: 20px;
  cursor: pointer;
  opacity: 0.7;
  transition: opacity var(--transition);
}
.nav__search:hover { opacity: 1; }

.nav__cta {
  padding: 8px 20px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
}

/* Mega Menu */
.mega-menu {
  display: none;
  position: absolute;
  top: 72px;
  left: 0;
  right: 0;
  background: var(--white);
  border-bottom: 1px solid var(--border-dark);
  padding: var(--space-lg) 0;
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
  z-index: 999;
}

.mega-menu.is-active { display: block; }

.mega-menu__grid {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--page-padding);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

.mega-menu__col-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: var(--space-sm);
}

.mega-menu__link {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 6px 0;
  font-size: 14px;
  color: var(--gray-600);
  transition: color var(--transition);
}
.mega-menu__link:hover { color: var(--denim); }

.mega-menu__link svg { width: 16px; height: 16px; flex-shrink: 0; }

/* Mobile Nav */
.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  z-index: 1001;
}
.nav__hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: currentColor;
  border-radius: 1px;
  transition: all 0.3s ease;
}

/* Hamburger → X animation */
.nav__hamburger.is-active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav__hamburger.is-active span:nth-child(2) {
  opacity: 0;
}
.nav__hamburger.is-active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* No-scroll body lock */
body.no-scroll {
  overflow: hidden;
}

/* Scrolled state — slightly smaller, with shadow */
.nav--scrolled {
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.1);
}

/* Mobile drawer overlay */
.nav--open .nav__links {
  display: flex !important;
  flex-direction: column;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--navy);
  padding: var(--space-lg) var(--page-padding);
  gap: 0;
  z-index: 1000;
  overflow-y: auto;
  animation: slideDown 0.3s ease;
}

.nav--open .nav__links .nav__link {
  display: block;
  padding: 16px 0;
  font-size: 18px;
  color: var(--white) !important;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.nav--open .nav__actions {
  display: flex !important;
}

/* Light nav mobile drawer uses white bg */
.nav:not(.nav--dark).nav--open .nav__links {
  background: var(--white);
}
.nav:not(.nav--dark).nav--open .nav__links .nav__link {
  color: var(--navy) !important;
  border-bottom-color: var(--border-dark);
}

/* Mega-menu mobile layout */
@media (max-width: 1024px) {
  .mega-menu.is-active {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    bottom: 0;
    overflow-y: auto;
    z-index: 999;
  }
  .mega-menu__grid {
    grid-template-columns: 1fr;
  }
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== FOOTER ===== */
.footer {
  background: var(--white);
  border-top: 1px solid var(--border-dark);
  padding: var(--space-3xl) 0 var(--space-lg);
}

.footer--dark {
  background: var(--navy);
  border-top: 1px solid var(--border-light);
  color: var(--white);
}

.footer__grid {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--page-padding);
  display: grid;
  grid-template-columns: 1.5fr repeat(4, 1fr);
  gap: var(--space-xl);
}

.footer__brand {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 24px;
  margin-bottom: var(--space-sm);
}

.footer__col-title {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.footer__link {
  display: block;
  font-size: 14px;
  color: var(--gray-500);
  padding: 4px 0;
  transition: color var(--transition);
}
.footer__link:hover { color: var(--denim); }

.footer--dark .footer__link { color: rgba(255,255,255,0.6); }
.footer--dark .footer__link:hover { color: var(--white); }

.footer__bottom {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--space-lg) var(--page-padding) 0;
  margin-top: var(--space-xl);
  border-top: 1px solid var(--border-dark);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--text-tiny);
  color: var(--gray-400);
}

.footer--dark .footer__bottom { border-top-color: var(--border-light); }

.footer__socials {
  display: flex;
  gap: var(--space-sm);
}

.footer__socials a {
  width: 20px;
  height: 20px;
  opacity: 0.5;
  transition: opacity var(--transition);
}
.footer__socials a:hover { opacity: 1; }

/* ===== HERO ===== */
.hero {
  padding: 120px 0 var(--section-padding);
  text-align: center;
}

.hero--dark { background: var(--navy); color: var(--white); }
.hero--light { background: var(--white); color: var(--gray-900); }

.hero__subtitle {
  font-size: var(--text-regular);
  max-width: 640px;
  margin: var(--space-md) auto 0;
  opacity: 0.8;
}

.hero__actions {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  margin-top: var(--space-lg);
}

/* ===== SECTION HEADER (centered heading+sub) ===== */
.section-header {
  text-align: center;
  max-width: 768px;
  margin: 0 auto var(--space-xl);
}

.section-header__tag {
  font-family: var(--font-body);
  font-size: var(--text-small);
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--gray-500);
}

.section-header__tag--light { color: rgba(255,255,255,0.6); }

.section-header__subtitle {
  font-size: var(--text-regular);
  margin-top: var(--space-sm);
  color: var(--gray-500);
}

.section--dark .section-header__subtitle { color: rgba(255,255,255,0.7); }

/* ===== CARDS ===== */
.card {
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow var(--transition);
}

.card:hover { box-shadow: 0 4px 16px rgba(0,0,0,0.08); }

.card--dark {
  border-color: var(--border-light);
  background: var(--navy-light);
}

.card__image {
  width: 100%;
  aspect-ratio: 16/10;
  background: var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: center;
}

.card__image--dark { background: var(--navy-light); }

.card__image svg {
  width: 48px;
  height: 48px;
  opacity: 0.3;
}

.card__body {
  padding: var(--space-md);
}

.card__tag {
  font-size: var(--text-tiny);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--gray-400);
  margin-bottom: var(--space-xs);
}

.card__title {
  font-family: var(--font-heading);
  font-size: var(--text-medium);
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.card__text {
  font-size: var(--text-small);
  color: var(--gray-500);
  line-height: 1.6;
}

.card__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--text-small);
  font-weight: 500;
  margin-top: var(--space-sm);
  color: var(--gray-900);
  transition: gap var(--transition);
}
.card__link:hover { gap: 10px; }

.card--dark .card__text { color: rgba(255,255,255,0.6); }
.card--dark .card__link { color: var(--white); }

/* ===== STATS ===== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  text-align: center;
}

.stat__number {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--heading-1);
  line-height: 1;
  letter-spacing: -2px;
}

.stat__label {
  font-size: var(--text-small);
  margin-top: var(--space-xs);
  color: var(--gray-500);
}

.section--dark .stat__label { color: rgba(255,255,255,0.6); }

/* Stacked stats (vertical) */
.stat-stack { display: flex; flex-direction: column; gap: var(--space-lg); }

.stat-stack .stat__number {
  font-size: var(--heading-2);
}

/* ===== ACCORDION / FAQ ===== */
.accordion { border-bottom: 1px solid var(--border-dark); }
.section--dark .accordion { border-bottom-color: var(--border-light); }

.accordion__item { border-top: 1px solid var(--border-dark); }
.section--dark .accordion__item { border-top-color: var(--border-light); }

.accordion__header {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
  padding: var(--space-sm) 0;
  width: 100%;
  cursor: pointer;
  background: none;
  border: none;
  color: inherit;
  text-align: left;
  font-family: var(--font-body);
  transition: opacity var(--transition);
}
.accordion__header:hover { opacity: 0.8; }

.accordion__icon {
  width: 24px; height: 24px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  transition: transform 0.3s ease;
}
.accordion__item.is-open .accordion__icon { transform: rotate(180deg); }

.accordion__title {
  flex: 1;
  font-size: var(--text-medium);
  font-weight: 600;
  line-height: 1.5;
}

.accordion__body {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}
.accordion__item.is-open .accordion__body { max-height: 500px; }

.accordion__body-inner { padding-bottom: var(--space-md); }

.accordion__text {
  font-size: var(--text-regular);
  line-height: 1.6;
  color: var(--gray-500);
}
.section--dark .accordion__text { color: rgba(255,255,255,0.7); }

/* Two-column FAQ */
.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg) var(--space-xl);
}

.faq-item__question {
  font-size: var(--text-regular);
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.faq-item__answer {
  font-size: var(--text-small);
  color: var(--gray-500);
  line-height: 1.6;
}

/* ===== TESTIMONIAL ===== */
.testimonial {
  text-align: center;
  max-width: 768px;
  margin: 0 auto;
}

.testimonial__stars {
  display: flex;
  justify-content: center;
  gap: 4px;
  margin-bottom: var(--space-md);
}

.testimonial__stars svg { width: 20px; height: 20px; }

.testimonial__quote {
  font-size: var(--heading-6);
  font-weight: 400;
  line-height: 1.5;
  font-style: italic;
}

.testimonial__author {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.testimonial__avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gray-200);
  overflow: hidden;
}

.testimonial__name {
  font-size: var(--text-small);
  font-weight: 600;
}

.testimonial__role {
  font-size: 14px;
  color: var(--gray-400);
}

/* ===== PRICING ===== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.pricing-card {
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  text-align: center;
}

.pricing-card--featured {
  border-color: var(--denim);
  box-shadow: 0 0 0 1px var(--denim);
}

.pricing-card__name {
  font-size: var(--text-medium);
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.pricing-card__price {
  font-family: var(--font-heading);
  font-size: var(--heading-3);
  font-weight: 700;
  letter-spacing: -1px;
}

.pricing-card__period {
  font-size: var(--text-small);
  color: var(--gray-400);
}

.pricing-card__desc {
  font-size: var(--text-small);
  color: var(--gray-500);
  margin: var(--space-sm) 0 var(--space-md);
}

.pricing-card__features {
  text-align: left;
  margin: var(--space-md) 0;
}

.pricing-card__feature {
  display: flex;
  align-items: flex-start;
  gap: var(--space-xs);
  padding: 6px 0;
  font-size: var(--text-small);
}

.pricing-card__feature svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--denim);
}

/* ===== IMAGE PLACEHOLDERS ===== */
.placeholder-img {
  background: var(--gray-100);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.placeholder-img--dark {
  background: var(--navy-light);
}

.placeholder-img svg {
  width: 48px;
  height: 48px;
  opacity: 0.25;
}

/* ===== LOGO BAR ===== */
.logo-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xl);
  flex-wrap: wrap;
  padding: var(--space-lg) 0;
}

.logo-bar__item {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--text-medium);
  opacity: 0.3;
}

/* ===== SPLIT (text + image side by side) ===== */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.split--reverse { direction: rtl; }
.split--reverse > * { direction: ltr; }

.split__content { display: flex; flex-direction: column; gap: var(--space-sm); }

.split__tag {
  font-size: var(--text-small);
  font-weight: 600;
  color: var(--gray-500);
}

.split__title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--heading-4);
  line-height: 1.2;
  letter-spacing: -0.4px;
}

.split__text {
  font-size: var(--text-regular);
  color: var(--gray-500);
  line-height: 1.6;
}

.split__image {
  width: 100%;
  aspect-ratio: 4/3;
  background: var(--gray-100);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.section--dark .split__text { color: rgba(255,255,255,0.7); }
.section--dark .split__tag { color: rgba(255,255,255,0.5); }
.section--dark .split__image { background: var(--navy-light); }

/* ===== FEATURE ROWS ===== */
.feature-list { display: flex; flex-direction: column; gap: var(--space-sm); }

.feature-list__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  font-size: var(--text-regular);
}

.feature-list__icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  margin-top: 2px;
}

/* ===== COMPARISON TABLE ===== */
.comparison-table {
  width: 100%;
  border-collapse: collapse;
}

.comparison-table th,
.comparison-table td {
  padding: 12px 16px;
  text-align: center;
  font-size: var(--text-small);
  border-bottom: 1px solid var(--border-dark);
}

.comparison-table th:first-child,
.comparison-table td:first-child {
  text-align: left;
  font-weight: 500;
}

.comparison-table thead th {
  font-weight: 600;
  font-size: var(--text-medium);
  padding-bottom: var(--space-md);
}

.comparison-table .category-row td {
  font-weight: 600;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--gray-400);
  padding-top: var(--space-md);
}

/* ===== TIMELINE ===== */
.timeline { position: relative; padding-left: var(--space-xl); }

.timeline::before {
  content: '';
  position: absolute;
  left: 12px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border-dark);
}

.timeline__item {
  position: relative;
  padding-bottom: var(--space-xl);
}

.timeline__item::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--space-xl) + 6px);
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--denim);
  border: 3px solid var(--white);
}

.timeline__year {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--heading-6);
  margin-bottom: var(--space-xs);
}

.timeline__title {
  font-weight: 600;
  font-size: var(--text-medium);
  margin-bottom: var(--space-xs);
}

.timeline__text {
  font-size: var(--text-small);
  color: var(--gray-500);
}

/* ===== CTA BANNER ===== */
.cta-banner {
  text-align: center;
  padding: var(--section-padding) 0;
}

.cta-banner__heading {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--heading-4);
  margin-bottom: var(--space-sm);
}

.cta-banner__text {
  font-size: var(--text-regular);
  color: var(--gray-500);
  max-width: 560px;
  margin: 0 auto var(--space-lg);
}

.section--dark .cta-banner__text { color: rgba(255,255,255,0.7); }

/* ===== FORM ===== */
.input {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-md);
  font-size: var(--text-small);
  font-family: var(--font-body);
  transition: border-color var(--transition);
}
.input:focus { outline: none; border-color: var(--denim); }

.input--dark {
  background: transparent;
  border-color: var(--border-light);
  color: var(--white);
}

.input-group {
  display: flex;
  gap: var(--space-xs);
}

/* ===== BREADCRUMBS ===== */
.breadcrumbs {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  flex-wrap: wrap;
  font-size: var(--text-small);
}

.breadcrumbs__sep {
  width: 16px; height: 16px;
  display: flex; align-items: center; justify-content: center;
}

.breadcrumbs__sep svg { width: 6px; height: 10px; }
.breadcrumbs__active { font-weight: 600; }

/* ===== TABS ===== */
.tabs {
  display: flex;
  gap: var(--space-md);
  border-bottom: 1px solid var(--border-dark);
  margin-bottom: var(--space-lg);
}

.tab {
  padding: var(--space-sm) 0;
  font-size: var(--text-small);
  font-weight: 500;
  color: var(--gray-400);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: all var(--transition);
  cursor: pointer;
}

.tab.is-active {
  color: var(--gray-900);
  border-bottom-color: var(--gray-900);
}

.section--dark .tab.is-active {
  color: var(--white);
  border-bottom-color: var(--white);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1200px) {
  .footer__grid { grid-template-columns: 1fr repeat(3, 1fr); gap: var(--space-lg); }
}

@media (max-width: 1024px) {
  :root {
    --page-padding: 40px;
    --section-padding: 60px;
    --heading-1: 48px;
    --heading-2: 44px;
    --heading-3: 40px;
    --heading-4: 32px;
    --heading-5: 28px;
  }

  .split { grid-template-columns: 1fr; gap: var(--space-xl); }
  .split--reverse { direction: ltr; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
  .faq-grid { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: repeat(2, 1fr); }

  .nav__links { display: none; }
  .nav__hamburger { display: flex; }
}

@media (max-width: 768px) {
  :root {
    --page-padding: 24px;
    --section-padding: 48px;
    --heading-1: 40px;
    --heading-2: 36px;
    --heading-3: 32px;
    --heading-4: 28px;
    --heading-5: 24px;
    --text-regular: 16px;
    --text-medium: 18px;
  }

  h1 { letter-spacing: -1px; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; gap: var(--space-lg); }
  .hero { padding: 80px 0 var(--space-xl); }
  .hero__actions { flex-direction: column; align-items: stretch; }
  .footer__grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  :root {
    --page-padding: 16px;
    --section-padding: 40px;
    --heading-1: 32px;
    --heading-2: 30px;
    --heading-3: 28px;
  }
}

/* ===== UTILITIES ===== */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }