/* ============================================================
   FROGTEK CORPORATE WEBSITE — STYLES
   ============================================================ */

/* --- Brown Font Family --- */
@font-face {
  font-family: 'Brown';
  src: url('fonts/Brown-Regular.woff') format('woff'),
       url('fonts/Brown-Regular.ttf') format('truetype');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Brown';
  src: url('fonts/Brown-Bold.woff') format('woff'),
       url('fonts/Brown-Bold.ttf') format('truetype');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Brown';
  src: url('fonts/Brown-Light.woff') format('woff'),
       url('fonts/Brown-Light.ttf') format('truetype');
  font-weight: 300;
  font-style: normal;
  font-display: swap;
}

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

:root {
  --clr-bg: #FFFFFF;
  --clr-bg-subtle: #F8FAFB;
  --clr-bg-dark: #354251;
  --clr-surface: #F3F4F6;
  --clr-border: #E5E7EB;
  --clr-border-dark: #D1D5DB;
  --clr-text: #0D1117;
  --clr-text-2: #4B5563;
  --clr-text-3: #9CA3AF;
  --clr-navy: #354251;
  --clr-navy-mid: #4A5A6B;
  --clr-aqua: #1FE5C8;
  --clr-aqua-pale: #E8FBF9;
  --clr-accent: #354251;

  --font: 'Brown', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;

  --shadow-sm: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,.08), 0 2px 6px rgba(0,0,0,.04);
  --shadow-lg: 0 16px 48px rgba(0,0,0,.10), 0 4px 16px rgba(0,0,0,.06);

  --transition: 0.22s cubic-bezier(.4,0,.2,1);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--clr-bg);
  color: var(--clr-text);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, svg { display: block; }
a { color: inherit; text-decoration: none; }

/* --- Container --- */
.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Sections --- */
.section { padding: 96px 0; }

.section__label {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-navy-mid);
  margin-bottom: 16px;
}

.section__title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--clr-text);
  margin-bottom: 20px;
}

.section__body {
  font-size: 17px;
  line-height: 1.7;
  color: var(--clr-text-2);
  max-width: 560px;
  margin-bottom: 16px;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  outline: none;
  white-space: nowrap;
}

.btn--primary {
  background: var(--clr-navy);
  color: #fff;
}
.btn--primary:hover {
  background: var(--clr-navy-mid);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(53,66,81,0.25);
}

.btn--ghost {
  background: transparent;
  color: var(--clr-text);
  border: 1.5px solid var(--clr-border-dark);
}
.btn--ghost:hover {
  border-color: var(--clr-text);
  background: var(--clr-surface);
  transform: translateY(-1px);
}

.btn--large { padding: 15px 32px; font-size: 16px; }

/* --- Desktop line breaks --- */
@media (max-width: 768px) {
  .desktop-br { display: none; }
}


/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.nav.scrolled {
  border-bottom-color: var(--clr-border);
  box-shadow: 0 1px 8px rgba(0,0,0,0.06);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--clr-text);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav__links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--clr-text-2);
  transition: color var(--transition);
}
.nav__links a:hover { color: var(--clr-text); }

.nav__cta {
  padding: 8px 18px;
  background: var(--clr-navy);
  color: #fff !important;
  border-radius: var(--radius-sm);
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition) !important;
}
.nav__cta:hover {
  background: var(--clr-navy-mid) !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(53,66,81,0.2);
}

.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav__hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--clr-text);
  border-radius: 2px;
  transition: all var(--transition);
}

/* Mobile menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  z-index: 99;
  background: var(--clr-bg);
  border-bottom: 1px solid var(--clr-border);
  padding: 16px 24px;
  flex-direction: column;
  gap: 0;
}
.mobile-menu a {
  display: block;
  padding: 14px 0;
  font-size: 16px;
  font-weight: 500;
  color: var(--clr-text-2);
  border-bottom: 1px solid var(--clr-border);
  transition: color var(--transition);
}
.mobile-menu a:last-child { border-bottom: none; }
.mobile-menu a:hover { color: var(--clr-text); }
.mobile-menu.open { display: flex; }

@media (max-width: 768px) {
  .nav__links { display: none; }
  .nav__hamburger { display: flex; }
}


/* ============================================================
   REVEAL ANIMATIONS
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s cubic-bezier(.4,0,.2,1), transform 0.6s cubic-bezier(.4,0,.2,1);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}


/* ============================================================
   HERO
   ============================================================ */
.hero {
  padding: 140px 0 96px;
  background: var(--clr-bg);
  overflow: hidden;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-navy-mid);
  background: var(--clr-aqua-pale);
  border: 1px solid rgba(31,229,200,0.3);
  padding: 5px 12px;
  border-radius: 999px;
  margin-bottom: 24px;
}

.hero__headline {
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--clr-text);
  margin-bottom: 24px;
}

.hero__sub {
  font-size: 18px;
  line-height: 1.7;
  color: var(--clr-text-2);
  margin-bottom: 20px;
  max-width: 480px;
}

.hero__geo {
  font-size: 13px;
  color: var(--clr-text-3);
  margin-bottom: 36px;
  line-height: 1.6;
}

.hero__actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* Hero flywheel diagram */
.hero__visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero__flywheel {
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-md);
  width: 100%;
  max-width: 320px;
}

.flywheel__svg {
  width: 100%;
  height: auto;
  display: block;
}

@media (max-width: 900px) {
  .hero__inner { grid-template-columns: 1fr; gap: 48px; }
  .hero { padding: 110px 0 72px; }
  .hero__flywheel { max-width: 300px; margin: 0 auto; }
}


/* ============================================================
   WHO WE ARE
   ============================================================ */
.who { background: var(--clr-bg-subtle); }

.who__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.who__visual {
  display: flex;
  justify-content: center;
}

.who__illustration {
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  width: 100%;
  max-width: 380px;
}

@media (max-width: 900px) {
  .who__inner { grid-template-columns: 1fr; gap: 40px; }
  .who__visual { justify-content: flex-start; }
}


/* ============================================================
   CHALLENGE
   ============================================================ */
.challenge { background: var(--clr-bg); }

.challenge__inner { display: flex; flex-direction: column; gap: 0; }

.challenge__header { max-width: 600px; margin-bottom: 56px; }

.challenge__intro { max-width: 100%; }

.challenge__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.challenge__card {
  background: var(--clr-bg-subtle);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  padding: 28px;
  transition: box-shadow var(--transition), transform var(--transition);
}
.challenge__card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.challenge__card-icon {
  width: 44px;
  height: 44px;
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-text-2);
  margin-bottom: 16px;
}

.challenge__card h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--clr-text);
}

.challenge__card p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--clr-text-2);
}

@media (max-width: 600px) {
  .challenge__grid { grid-template-columns: 1fr; }
}


/* ============================================================
   OUR MODEL
   ============================================================ */
.model { background: var(--clr-bg-subtle); }

.model__header { max-width: 580px; margin-bottom: 64px; }
.model__intro { max-width: 100%; }

.model__flow {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: 0;
  align-items: start;
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.model__step {
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
  transition: background var(--transition);
}
.model__step:hover { background: var(--clr-bg-subtle); }

.model__step-number {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--clr-text-3);
  text-transform: uppercase;
}

.model__step-icon {
  width: 48px;
  height: 48px;
  background: var(--clr-aqua-pale);
  border: 1px solid rgba(31,229,200,0.3);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-navy);
}

.model__step h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--clr-text);
  line-height: 1.3;
}

.model__step p {
  font-size: 14px;
  line-height: 1.65;
  color: var(--clr-text-2);
}

.model__tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--clr-navy-mid);
  background: var(--clr-aqua-pale);
  border: 1px solid rgba(31,229,200,0.3);
  padding: 3px 10px;
  border-radius: 999px;
  margin-top: 4px;
  width: fit-content;
}

.model__connector {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 8px;
  align-self: center;
  color: var(--clr-text-3);
}

.model__note {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 24px;
  font-size: 13px;
  color: var(--clr-text-3);
  font-style: italic;
}

@media (max-width: 900px) {
  .model__flow {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
  }
  .model__connector {
    padding: 8px 32px;
    align-self: auto;
    transform: rotate(90deg);
  }
  .model__step { border-bottom: 1px solid var(--clr-border); }
  .model__step:last-child { border-bottom: none; }
}


/* ============================================================
   SCALE
   ============================================================ */
.scale { background: var(--clr-bg-dark); color: #fff; }

.scale__header { margin-bottom: 64px; }
.scale__header .section__label { color: var(--clr-aqua); }
.scale__header .section__title { color: #fff; }

.scale__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  background: rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.scale__stat {
  background: var(--clr-bg-dark);
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: background var(--transition);
}
.scale__stat:hover { background: rgba(255,255,255,0.04); }

.scale__number {
  font-size: clamp(36px, 5vw, 52px);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: #fff;
  line-height: 1;
}

.scale__label {
  font-size: 14px;
  color: rgba(255,255,255,0.5);
  font-weight: 400;
  line-height: 1.4;
}

.scale__stat--accent .scale__number { color: var(--clr-aqua); }
.scale__stat--accent .scale__label { color: rgba(31,229,200,0.65); }

@media (max-width: 768px) {
  .scale__grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .scale__grid { grid-template-columns: 1fr; }
}


/* ============================================================
   PRODUCTS
   ============================================================ */
.products { background: var(--clr-bg); }
.products__header { max-width: 480px; margin-bottom: 56px; }

.products__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.product__card {
  background: var(--clr-bg-subtle);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 40px;
  position: relative;
  transition: box-shadow var(--transition), transform var(--transition);
}
.product__card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.product__card--dark {
  background: var(--clr-navy);
  border-color: var(--clr-navy);
  color: #fff;
}

.product__badge {
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 999px;
}

.product__badge--free {
  background: var(--clr-aqua-pale);
  color: var(--clr-navy);
  border: 1px solid rgba(31,229,200,0.3);
}

.product__badge--b2b {
  background: rgba(255,255,255,0.15);
  color: rgba(255,255,255,0.8);
  border: 1px solid rgba(255,255,255,0.2);
}

.product__icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  color: var(--clr-navy);
}

.product__card--dark .product__icon {
  background: rgba(255,255,255,0.12);
  border-color: rgba(255,255,255,0.2);
  color: #fff;
}

.product__name {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.product__desc {
  font-size: 15px;
  line-height: 1.65;
  color: var(--clr-text-2);
  margin-bottom: 28px;
}
.product__card--dark .product__desc { color: rgba(255,255,255,0.7); }

.product__features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 11px;
}

.product__features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--clr-text-2);
}

.product__card--dark .product__features li { color: rgba(255,255,255,0.75); }

.product__features li svg {
  color: var(--clr-navy-mid);
  flex-shrink: 0;
}
.product__card--dark .product__features li svg { color: var(--clr-aqua); }

.product__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 24px;
  font-size: 13px;
  font-weight: 600;
  color: var(--clr-navy-mid);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), color var(--transition);
}
.product__link:hover {
  border-bottom-color: var(--clr-navy-mid);
  color: var(--clr-navy);
}

.product__link--light {
  color: rgba(255,255,255,0.7);
}
.product__link--light:hover {
  color: #fff;
  border-bottom-color: rgba(255,255,255,0.5);
}

@media (max-width: 768px) {
  .products__grid { grid-template-columns: 1fr; }
}


/* ============================================================
   IMPACT
   ============================================================ */
.impact { background: var(--clr-bg-subtle); }

.impact__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.impact__text { }

.impact__visual { }

.impact__bar-chart {
  display: flex;
  align-items: flex-end;
  gap: 16px;
  height: 200px;
  padding: 24px;
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.bar__item {
  flex: 1;
  height: 100%;
  display: flex;
  align-items: flex-end;
}

.bar__fill {
  width: 100%;
  height: var(--h);
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: 6px 6px 0 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: center;
  padding-bottom: 8px;
  transition: height 1s cubic-bezier(.4,0,.2,1);
}

.bar__fill--accent {
  background: var(--clr-navy);
  border-color: var(--clr-navy);
}

.bar__fill span {
  font-size: 11px;
  font-weight: 600;
  color: var(--clr-text-3);
  letter-spacing: 0.04em;
}
.bar__fill--accent span { color: rgba(255,255,255,0.7); }

.impact__chart-label {
  font-size: 12px;
  color: var(--clr-text-3);
  text-align: center;
  margin-top: 12px;
  font-style: italic;
}

@media (max-width: 900px) {
  .impact__inner { grid-template-columns: 1fr; gap: 40px; }
}


/* ============================================================
   GLOBAL STRUCTURE
   ============================================================ */
.global { background: var(--clr-bg); }
.global__header { margin-bottom: 56px; max-width: 560px; }
.global__intro { max-width: 100%; }

.global__grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 2px;
  background: var(--clr-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--clr-border);
}

.global__item {
  background: var(--clr-bg);
  padding: 28px 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: background var(--transition);
}
.global__item:hover { background: var(--clr-bg-subtle); }

.global__flag {
  font-size: 28px;
  line-height: 1;
}

.global__info h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--clr-text);
  margin-bottom: 4px;
}

.global__info p {
  font-size: 13px;
  color: var(--clr-text-3);
  line-height: 1.5;
}

@media (max-width: 900px) {
  .global__grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 600px) {
  .global__grid { grid-template-columns: repeat(2, 1fr); }
}


/* ============================================================
   CTA
   ============================================================ */
.cta { background: var(--clr-bg-subtle); }

.cta__inner {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}

.cta__headline {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 20px;
}

.cta__sub {
  font-size: 17px;
  color: var(--clr-text-2);
  line-height: 1.7;
  margin-bottom: 40px;
}

.cta__actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}


/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--clr-bg-dark);
  color: rgba(255,255,255,0.5);
  padding-top: 72px;
}

.footer__inner {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 48px;
  padding-bottom: 56px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer__links {
  display: contents;
}

.footer__brand .nav__logo {
  color: #fff;
  margin-bottom: 16px;
}

.footer__tagline {
  font-size: 14px;
  line-height: 1.6;
  color: rgba(255,255,255,0.35);
  max-width: 240px;
  margin-bottom: 16px;
}

.footer__social {
  display: flex;
  gap: 12px;
  align-items: center;
}

.footer__social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: rgba(255,255,255,0.07);
  color: rgba(255,255,255,0.45);
  border: 1px solid rgba(255,255,255,0.1);
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}
.footer__social a:hover {
  background: rgba(255,255,255,0.12);
  color: rgba(255,255,255,0.85);
  border-color: rgba(255,255,255,0.2);
}

.footer__col {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer__col-title {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: 4px;
}

.footer__col a {
  font-size: 14px;
  color: rgba(255,255,255,0.55);
  transition: color var(--transition);
}
.footer__col a:hover { color: #fff; }

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
}

.footer__bottom p {
  font-size: 13px;
  color: rgba(255,255,255,0.25);
}

.footer__legal {
  display: flex;
  gap: 24px;
}
.footer__legal a {
  font-size: 13px;
  color: rgba(255,255,255,0.25);
  transition: color var(--transition);
}
.footer__legal a:hover { color: rgba(255,255,255,0.6); }

@media (max-width: 900px) {
  .footer__inner { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 600px) {
  .footer__inner { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; gap: 12px; text-align: center; }
}