/* ============================================================
   KWAMTECH — B2B Wholesale Distribution of Durable Goods
   Design system + components
   ============================================================ */

:root,
[data-theme='light'] {
  /* Surfaces */
  --color-bg: #f7f6f2;
  --color-surface: #f9f8f5;
  --color-surface-2: #fbfbf9;
  --color-surface-offset: #f2efea;
  --color-divider: #e2dfd8;
  --color-border: #d4d1ca;

  /* Text */
  --color-text: #211f18;
  --color-text-muted: #6c6b66;
  --color-text-faint: #a8a69f;
  --color-text-inverse: #f9f8f4;

  /* Accent — deep teal */
  --color-primary: #0c5e64;
  --color-primary-hover: #0a4a4f;
  --color-primary-active: #073438;
  --color-primary-soft: #d9eaea;
  --color-on-primary: #f9f8f4;

  /* Accent — warm gold */
  --color-gold: #c08400;
  --color-gold-soft: #f3e6c4;

  --shadow-sm: 0 1px 2px rgba(20, 18, 12, 0.06);
  --shadow-md: 0 6px 20px rgba(20, 18, 12, 0.08);
  --shadow-lg: 0 18px 48px rgba(20, 18, 12, 0.14);
}

[data-theme='dark'] {
  --color-bg: #14130f;
  --color-surface: #1b1a16;
  --color-surface-2: #211f1a;
  --color-surface-offset: #1d1c17;
  --color-divider: #2a2823;
  --color-border: #38352e;

  --color-text: #d6d3ca;
  --color-text-muted: #8f8c84;
  --color-text-faint: #5f5d56;
  --color-text-inverse: #1b1a16;

  --color-primary: #57a7ad;
  --color-primary-hover: #3d8c92;
  --color-primary-active: #2c6f74;
  --color-primary-soft: #1f2c2d;
  --color-on-primary: #0f0e0b;

  --color-gold: #e6b13c;
  --color-gold-soft: #332a14;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 18px 48px rgba(0, 0, 0, 0.6);
}

/* ---------- Type scale ---------- */
:root {
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.8125rem);
  --text-sm: clamp(0.875rem, 0.83rem + 0.25vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.2rem, 1.05rem + 0.6vw, 1.5rem);
  --text-xl: clamp(1.6rem, 1.25rem + 1.5vw, 2.4rem);
  --text-2xl: clamp(2.2rem, 1.4rem + 3.4vw, 4rem);

  --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;

  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 0.875rem;
  --radius-xl: 1.25rem;
  --radius-full: 9999px;

  --content-narrow: 680px;
  --content-default: 1080px;
  --content-wide: 1240px;

  --transition: 200ms cubic-bezier(0.16, 1, 0.3, 1);

  --font-display: 'General Sans', 'Satoshi', 'Segoe UI', sans-serif;
  --font-body: 'Satoshi', 'Inter', 'Segoe UI', system-ui, sans-serif;
}

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

html {
  -webkit-text-size-adjust: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: 6rem;
}

body {
  min-height: 100dvh;
  line-height: 1.65;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
}

img,
picture,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

ul {
  list-style: none;
}

input,
button,
textarea,
select {
  font: inherit;
  color: inherit;
}

h1,
h2,
h3,
h4 {
  text-wrap: balance;
  line-height: 1.12;
  letter-spacing: -0.01em;
}

p,
li {
  text-wrap: pretty;
  max-width: 70ch;
}

::selection {
  background: var(--color-primary);
  color: var(--color-on-primary);
}

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

a,
button,
input,
textarea,
select {
  transition: color var(--transition), background var(--transition),
    border-color var(--transition), box-shadow var(--transition),
    transform var(--transition);
}

button {
  cursor: pointer;
  background: none;
  border: none;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

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

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--content-default);
  margin-inline: auto;
  padding-inline: clamp(1.1rem, 4vw, 2.5rem);
}

.section {
  padding-block: clamp(var(--space-10), 7vw, var(--space-24));
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.eyebrow::before {
  content: '';
  width: 1.6rem;
  height: 1px;
  background: currentColor;
  opacity: 0.6;
}

.section-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  max-width: 22ch;
}

.section-intro {
  color: var(--color-text-muted);
  max-width: 60ch;
  margin-top: var(--space-3);
}

/* ---------- Header ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in oklab, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-divider);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  height: 4.2rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--color-text);
}

.brand__mark {
  width: 2.1rem;
  height: 2.1rem;
  flex-shrink: 0;
  color: var(--color-primary);
}

.brand__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
}

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

.nav {
  display: none;
  align-items: center;
  gap: var(--space-6);
}

.nav a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
}

.nav a:hover {
  color: var(--color-text);
}

.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.icon-btn {
  display: inline-grid;
  place-items: center;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  border: 1px solid transparent;
}

.icon-btn:hover {
  color: var(--color-text);
  background: var(--color-surface-offset);
}

.menu-btn {
  display: inline-grid;
  place-items: center;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: var(--radius-sm);
  color: var(--color-text);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  font-size: var(--text-sm);
  font-weight: 600;
  padding: 0.85em 1.4em;
  border-radius: var(--radius-full);
  text-decoration: none;
  white-space: nowrap;
  border: 1px solid transparent;
  line-height: 1;
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-on-primary);
  box-shadow: var(--shadow-sm);
}

.btn--primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn--primary:active {
  background: var(--color-primary-active);
  transform: translateY(0);
}

.btn--ghost {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn--ghost:hover {
  border-color: var(--color-text-muted);
  background: var(--color-surface-offset);
}

.btn--on-dark {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.22);
  backdrop-filter: blur(6px);
}

.btn--on-dark:hover {
  background: rgba(255, 255, 255, 0.16);
  transform: translateY(-1px);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: clamp(560px, 92vh, 820px);
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  color: #f5f3ee;
}

.hero__media {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(
    180deg,
    rgba(10, 12, 14, 0.55) 0%,
    rgba(10, 12, 14, 0.35) 40%,
    rgba(10, 12, 14, 0.82) 100%
  );
}

.hero__content {
  width: 100%;
  padding-block: clamp(2.5rem, 6vw, 5rem);
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #e6b13c;
  margin-bottom: var(--space-4);
}

.hero__eyebrow::before {
  content: '';
  width: 1.6rem;
  height: 1px;
  background: currentColor;
  opacity: 0.7;
}

.hero__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  line-height: 1.04;
  max-width: 16ch;
  text-wrap: balance;
}

.hero__title .gold {
  color: #e6b13c;
}

.hero__sub {
  margin-top: var(--space-5);
  font-size: var(--text-lg);
  color: #e7e4dd;
  max-width: 52ch;
  line-height: 1.5;
}

.hero__cta {
  margin-top: var(--space-8);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

/* ---------- Credibility strip ---------- */
.creds {
  border-bottom: 1px solid var(--color-divider);
  background: var(--color-surface);
}

.creds__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-2) var(--space-4);
  padding-block: var(--space-8);
}

.cred {
  display: flex;
  gap: 0.7rem;
  align-items: flex-start;
}

.cred__icon {
  flex-shrink: 0;
  width: 1.4rem;
  height: 1.4rem;
  color: var(--color-primary);
  margin-top: 0.1rem;
}

.cred__label {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.cred__text {
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-text);
}

/* ---------- Category grid ---------- */
.cat-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
  margin-top: var(--space-10);
}

.cat-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-surface);
  transition: transform var(--transition), box-shadow var(--transition),
    border-color var(--transition);
}

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

.cat-card__media {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--color-surface-offset);
}

.cat-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 600ms cubic-bezier(0.16, 1, 0.3, 1);
}

.cat-card:hover .cat-card__media img {
  transform: scale(1.05);
}

.cat-card__body {
  padding: var(--space-6);
}

.cat-card__num {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-gold);
}

.cat-card__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  margin-top: var(--space-2);
}

.cat-card__desc {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  margin-top: var(--space-2);
}

/* ---------- Steps ---------- */
.steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  margin-top: var(--space-10);
  counter-reset: step;
}

.step {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
}

.step__num {
  flex-shrink: 0;
  width: 2.4rem;
  height: 2.4rem;
  display: grid;
  place-items: center;
  border-radius: var(--radius-full);
  background: var(--color-primary-soft);
  color: var(--color-primary);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-sm);
}

.step__title {
  font-weight: 600;
  font-size: var(--text-sm);
}

.step__desc {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  margin-top: 0.2rem;
}

/* ---------- Audience / value ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  align-items: start;
  margin-top: var(--space-10);
}

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

.chip {
  padding: 0.7em 1em;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 500;
  text-align: center;
  background: var(--color-surface);
}

.value-list {
  display: grid;
  gap: var(--space-5);
  margin-top: var(--space-6);
}

.value {
  display: flex;
  gap: 0.8rem;
}

.value__icon {
  flex-shrink: 0;
  width: 1.5rem;
  height: 1.5rem;
  color: var(--color-gold);
  margin-top: 0.1rem;
}

.value__title {
  font-weight: 600;
}

.value__desc {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  margin-top: 0.15rem;
}

/* ---------- Quote form ---------- */
.cta-band {
  background: var(--color-primary);
  color: var(--color-on-primary);
  position: relative;
  overflow: hidden;
}

.cta-band::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(
    60% 80% at 85% 20%,
    rgba(230, 177, 60, 0.22),
    transparent 70%
  );
  pointer-events: none;
}

.cta-band .container {
  position: relative;
  z-index: 1;
}

.cta-band__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  align-items: center;
}

.cta-band h2 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  color: #fff;
}

.cta-band p {
  color: rgba(255, 255, 255, 0.82);
  margin-top: var(--space-3);
}

.form-card {
  background: var(--color-surface);
  color: var(--color-text);
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.field {
  margin-bottom: var(--space-4);
}

.field label {
  display: block;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 0.4rem;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 0.75em 0.9em;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface-2);
  color: var(--color-text);
  font-size: var(--text-sm);
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-soft);
}

.field textarea {
  min-height: 5.5rem;
  resize: vertical;
}

.form-note {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-3);
}

.form-success {
  display: none;
  text-align: center;
  padding: var(--space-6) var(--space-4);
}

.form-success.show {
  display: block;
}

.form-success__icon {
  width: 3rem;
  height: 3rem;
  margin-inline: auto;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.form-success h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
}

.form-success p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  margin-top: var(--space-2);
}

/* ---------- FAQ ---------- */
.faq {
  margin-top: var(--space-8);
  border-top: 1px solid var(--color-divider);
}

.faq details {
  border-bottom: 1px solid var(--color-divider);
}

.faq summary {
  list-style: none;
  cursor: pointer;
  padding: var(--space-5) 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  font-weight: 600;
  font-size: var(--text-base);
}

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

.faq summary .plus {
  flex-shrink: 0;
  width: 1.4rem;
  height: 1.4rem;
  color: var(--color-primary);
  transition: transform var(--transition);
}

.faq details[open] summary .plus {
  transform: rotate(45deg);
}

.faq .answer {
  padding-bottom: var(--space-5);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  max-width: 70ch;
}

/* ---------- Footer ---------- */
.footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-divider);
  padding-block: var(--space-12) var(--space-8);
}

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

.footer__brand .brand {
  margin-bottom: var(--space-3);
}

.footer__about {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  max-width: 42ch;
}

.footer__cols {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

.footer__col h4 {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
}

.footer__col a {
  display: block;
  font-size: var(--text-sm);
  color: var(--color-text);
  text-decoration: none;
  padding: 0.2rem 0;
}

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

.footer__bottom {
  margin-top: var(--space-10);
  padding-top: var(--space-5);
  border-top: 1px solid var(--color-divider);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: space-between;
  align-items: center;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.footer__legal a {
  color: var(--color-text-muted);
  text-decoration: none;
}

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

/* ---------- Mobile nav ---------- */
.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: var(--color-bg);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 300ms cubic-bezier(0.16, 1, 0.3, 1);
}

.mobile-nav.open {
  transform: translateX(0);
}

.mobile-nav__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-8);
}

.mobile-nav__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  flex: 1;
}

.mobile-nav__links a {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  padding: 0.6rem 0;
  color: var(--color-text);
  text-decoration: none;
  border-bottom: 1px solid var(--color-divider);
}

.mobile-nav__cta {
  margin-top: var(--space-4);
}

/* ---------- Policy pages ---------- */
.policy {
  padding-block: clamp(var(--space-10), 6vw, var(--space-20));
}

.policy h1 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.policy__meta {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  margin-bottom: var(--space-8);
}

.policy h2 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
}

.policy p,
.policy li {
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
  max-width: 72ch;
}

.policy ul {
  list-style: disc;
  padding-left: 1.3rem;
  margin-bottom: var(--space-3);
}

.policy a {
  color: var(--color-primary);
}

/* ---------- Desktop ---------- */
@media (min-width: 720px) {
  .creds__grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .cat-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .cat-grid .cat-card:last-child {
    grid-column: 1 / -1;
  }
  .audience {
    grid-template-columns: repeat(3, 1fr);
  }
  .footer__grid {
    grid-template-columns: 1.4fr 1fr;
  }
  .footer__cols {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 980px) {
  .nav {
    display: flex;
  }
  .menu-btn {
    display: none;
  }
  .cat-grid {
    grid-template-columns: repeat(6, 1fr);
  }
  .cat-grid .cat-card {
    grid-column: span 2;
  }
  .cat-grid .cat-card:nth-child(4),
  .cat-grid .cat-card:nth-child(5) {
    grid-column: span 3;
  }
  .steps {
    grid-template-columns: repeat(5, 1fr);
  }
  .step {
    flex-direction: column;
    gap: var(--space-3);
  }
  .split {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
  }
  .cta-band__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
  }
  .footer__grid {
    grid-template-columns: 1.4fr 2fr;
  }
  .footer__cols {
    grid-template-columns: repeat(3, 1fr);
  }
}