/* =============================================================
   Altern8 — design system v2
   Refines the existing brand (Roboto + #b82927) into a proper
   token set: fluid type, 8px spacing rhythm, accessible colour.
   Vanilla CSS, no build step.
   ============================================================= */

/* ---------- 1. Tokens ---------- */
:root {
  /* Brand */
  --red-700: #8b1f1e;
  --red-600: #b82927;
  --red-500: #c8433f;
  --red-100: #f7dedd;
  --red-50: #fdf4f3;

  /* Ink — a real neutral ramp, replacing the ad-hoc greys */
  --ink-900: #14161a;
  --ink-800: #22262e;
  --ink-700: #343741;
  --ink-500: #5c626f;
  /* #838a97 read nicer but only hit 3.5:1 — this clears AA on white and on
     --bg-sunken, which is where most muted text actually sits. */
  --ink-400: #63697a;
  --ink-300: #b6bcc6;

  /* Surfaces */
  --bg: #ffffff;
  --bg-sunken: #f7f7f9;
  --bg-tint: #fdf7f6;
  --surface: #ffffff;
  --line: #e6e8ec;
  --line-strong: #d3d7de;

  --green-600: #1eab54;
  /* Brand green (#25d366) is only 1.98:1 against white text. Used for the
     icon-only float; text buttons use the darker tone, which clears AA. */
  --whatsapp: #25d366;
  --whatsapp-ink: #107a41;

  /* Fluid type scale (1.25 ratio, viewport-aware) */
  --step--1: clamp(0.875rem, 0.84rem + 0.17vw, 0.9375rem);
  --step-0: clamp(1rem, 0.97rem + 0.15vw, 1.0625rem);
  --step-1: clamp(1.125rem, 1.06rem + 0.31vw, 1.3125rem);
  --step-2: clamp(1.375rem, 1.24rem + 0.63vw, 1.75rem);
  --step-3: clamp(1.75rem, 1.5rem + 1.25vw, 2.5rem);
  --step-4: clamp(2.25rem, 1.6rem + 3.2vw, 4rem);

  /* Spacing — 8px rhythm */
  --s-1: 0.25rem;
  --s-2: 0.5rem;
  --s-3: 0.75rem;
  --s-4: 1rem;
  --s-5: 1.5rem;
  --s-6: 2rem;
  --s-7: 3rem;
  --s-8: 4rem;
  --section-y: clamp(3.5rem, 7vw, 6.5rem);

  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;
  --radius-pill: 99rem;

  --shadow-sm: 0 1px 2px rgba(20, 22, 26, 0.05);
  --shadow: 0 4px 16px -4px rgba(20, 22, 26, 0.1);
  --shadow-lg: 0 18px 44px -12px rgba(20, 22, 26, 0.18);

  --wrap: 1140px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- 2. Reset ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}
* {
  margin: 0;
}
html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}
body {
  font-family: Roboto, system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: var(--step-0);
  line-height: 1.65;
  color: var(--ink-700);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img,
svg {
  display: block;
  max-width: 100%;
}
img {
  height: auto;
}
h1,
h2,
h3,
h4 {
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--ink-900);
  text-wrap: balance;
}
p {
  text-wrap: pretty;
}
a {
  color: var(--red-600);
  text-decoration: none;
}
button,
input,
textarea,
select {
  font: inherit;
  color: inherit;
}
ul {
  list-style: none;
  padding: 0;
}

/* Visible, consistent focus — the current site has none */
:focus-visible {
  outline: 3px solid var(--red-500);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 200;
  background: var(--ink-900);
  color: #fff;
  padding: var(--s-3) var(--s-5);
  border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus {
  left: 0;
}

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

/* ---------- 3. Layout primitives ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
}
.section {
  padding-block: var(--section-y);
}
.section--sunken {
  background: var(--bg-sunken);
}
.section--tint {
  background: linear-gradient(180deg, var(--bg-tint), var(--bg));
}

.section-head {
  max-width: 46rem;
  margin-bottom: var(--s-7);
}
.section-head.is-centered {
  margin-inline: auto;
  text-align: center;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  font-family: "Roboto Condensed", Roboto, sans-serif;
  font-size: var(--step--1);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--red-600);
  margin-bottom: var(--s-3);
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--red-600);
  border-radius: 2px;
}
.is-centered .eyebrow::before {
  display: none;
}
.section-head h2 {
  font-size: var(--step-3);
}
.section-head p {
  margin-top: var(--s-4);
  font-size: var(--step-1);
  color: var(--ink-500);
}

/* ---------- 4. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-2);
  padding: 0.875rem 1.5rem;
  border-radius: var(--radius-pill);
  border: 1.5px solid transparent;
  font-size: var(--step-0);
  font-weight: 600;
  line-height: 1.2;
  cursor: pointer;
  text-align: center;
  transition:
    background-color 0.2s var(--ease),
    color 0.2s var(--ease),
    border-color 0.2s var(--ease),
    transform 0.2s var(--ease),
    box-shadow 0.2s var(--ease);
}
.btn svg {
  flex-shrink: 0;
}
.btn:hover {
  transform: translateY(-2px);
}
.btn:active {
  transform: translateY(0);
}

.btn--primary {
  background: var(--red-600);
  color: #fff;
  box-shadow: 0 6px 18px -6px rgba(184, 41, 39, 0.55);
}
.btn--primary:hover {
  background: var(--red-700);
  color: #fff;
  box-shadow: 0 12px 26px -8px rgba(184, 41, 39, 0.6);
}

.btn--secondary {
  background: transparent;
  color: var(--ink-800);
  border-color: var(--line-strong);
}
.btn--secondary:hover {
  color: var(--ink-900);
  border-color: var(--ink-700);
  background: #fff;
}

.btn--ghost {
  background: transparent;
  color: var(--red-600);
  padding-inline: 0;
}
.btn--ghost:hover {
  color: var(--red-700);
  transform: none;
}
.btn--ghost .arrow {
  transition: transform 0.2s var(--ease);
}
.btn--ghost:hover .arrow {
  transform: translateX(4px);
}

.btn--whatsapp {
  background: var(--whatsapp-ink);
  color: #fff;
}
.btn--whatsapp:hover {
  background: #0c6234;
  color: #fff;
}

.btn--onDark {
  background: #fff;
  color: var(--ink-900);
}
.btn--onDark:hover {
  background: #fff;
  color: var(--red-700);
}
.btn--onDarkGhost {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.35);
}
.btn--onDarkGhost:hover {
  color: #fff;
  border-color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

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

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-3);
}
.is-centered .btn-row {
  justify-content: center;
}

/* ---------- 5. Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition:
    border-color 0.25s var(--ease),
    box-shadow 0.25s var(--ease);
}
.site-header.is-stuck {
  border-bottom-color: var(--line);
  box-shadow: var(--shadow-sm);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  gap: var(--s-5);
  min-height: 72px;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 1px;
  font-family: "Roboto Condensed", Roboto, sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink-900);
  margin-right: auto;
}
.brand img {
  height: 0.92em;
  width: auto;
  align-self: center;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--s-1);
}
.nav > li {
  position: relative;
}
.nav a {
  display: block;
  padding: 0.5rem 0.875rem;
  border-radius: var(--radius-pill);
  font-size: var(--step--1);
  font-weight: 500;
  color: var(--ink-500);
  transition:
    color 0.2s var(--ease),
    background-color 0.2s var(--ease);
}
.nav a:hover {
  color: var(--ink-900);
  background: var(--bg-sunken);
}
.nav li.is-active > a {
  color: var(--red-600);
  font-weight: 600;
}

.nav-toggle {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  padding: 0.5rem 0.875rem;
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-pill);
  font-size: var(--step--1);
  font-weight: 600;
  cursor: pointer;
}
.nav-toggle[aria-expanded="true"] .icon-menu,
.nav-toggle[aria-expanded="false"] .icon-close {
  display: none;
}

.header-cta {
  display: inline-flex;
  padding: 0.625rem 1.125rem;
  font-size: var(--step--1);
}

/* Submenu — opens on hover AND on keyboard focus (current site is hover-only) */
.has-sub > button {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.5rem 0.875rem;
  background: none;
  border: 0;
  border-radius: var(--radius-pill);
  font-size: var(--step--1);
  font-weight: 500;
  color: var(--ink-500);
  cursor: pointer;
}
.has-sub > button:hover {
  color: var(--ink-900);
  background: var(--bg-sunken);
}
.has-sub > button svg {
  transition: transform 0.2s var(--ease);
}
.has-sub[data-open="true"] > button svg {
  transform: rotate(180deg);
}
.submenu {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  min-width: 232px;
  padding: var(--s-2);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition:
    opacity 0.18s var(--ease),
    transform 0.18s var(--ease),
    visibility 0.18s;
}
.has-sub[data-open="true"] .submenu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.submenu a {
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius-sm);
  color: var(--ink-700);
  font-weight: 500;
}
.submenu a:hover {
  background: var(--red-50);
  color: var(--red-600);
}

/* ---------- 6. Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(3.5rem, 8vw, 6.5rem) clamp(3rem, 6vw, 5rem);
  background:
    radial-gradient(
      60rem 34rem at 88% -8%,
      rgba(184, 41, 39, 0.09),
      transparent 62%
    ),
    radial-gradient(
      44rem 30rem at -6% 12%,
      rgba(52, 55, 65, 0.05),
      transparent 60%
    ),
    var(--bg);
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}
.hero h1 {
  font-size: var(--step-4);
  letter-spacing: -0.035em;
}
.hero h1 .accent {
  color: var(--red-600);
}
.hero-lede {
  margin-top: var(--s-5);
  max-width: 34rem;
  font-size: var(--step-1);
  color: var(--ink-500);
}
.hero .btn-row {
  margin-top: var(--s-6);
}
.hero-note {
  margin-top: var(--s-4);
  font-size: var(--step--1);
  color: var(--ink-400);
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
  margin-bottom: var(--s-5);
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: #fff;
  font-size: var(--step--1);
  font-weight: 500;
  color: var(--ink-500);
}
.badge svg {
  color: var(--red-600);
}

/* Hero visual: an abstract "two services" card stack, no stock photo needed */
.hero-visual {
  display: grid;
  gap: var(--s-4);
}
.hero-card {
  display: flex;
  gap: var(--s-4);
  padding: var(--s-5);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}
.hero-card__icon {
  flex-shrink: 0;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--red-50);
  color: var(--red-600);
}
.hero-card h2 {
  font-size: var(--step-1);
  margin-bottom: var(--s-1);
}
.hero-card p {
  font-size: var(--step--1);
  color: var(--ink-500);
  line-height: 1.55;
}
.hero-card--offset {
  margin-left: clamp(0rem, 4vw, 3rem);
}

/* ---------- 7. Proof strip ---------- */
.proof {
  padding-block: var(--s-6);
  border-block: 1px solid var(--line);
  background: var(--bg-sunken);
}
.proof p {
  text-align: center;
  font-size: var(--step--1);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-400);
  margin-bottom: var(--s-5);
}
.proof-logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: clamp(1.5rem, 5vw, 3.5rem);
}
.proof-logos img {
  height: 34px;
  width: auto;
  object-fit: contain;
  filter: grayscale(1);
  opacity: 0.55;
  transition:
    filter 0.25s var(--ease),
    opacity 0.25s var(--ease);
}
.proof-logos a:hover img,
.proof-logos a:focus-visible img {
  filter: grayscale(0);
  opacity: 1;
}

/* ---------- 8. Services ---------- */
.services {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 26rem), 1fr));
  gap: var(--s-5);
}
.service {
  display: flex;
  flex-direction: column;
  padding: clamp(1.75rem, 3vw, 2.5rem);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  transition:
    border-color 0.25s var(--ease),
    box-shadow 0.25s var(--ease),
    transform 0.25s var(--ease);
}
.service:hover {
  transform: translateY(-4px);
  border-color: var(--red-100);
  box-shadow: var(--shadow-lg);
}
.service__icon {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  margin-bottom: var(--s-5);
  border-radius: 14px;
  background: var(--red-50);
  color: var(--red-600);
}
.service h3 {
  font-size: var(--step-2);
}
.service > p {
  margin-top: var(--s-3);
  color: var(--ink-500);
}
.service ul {
  margin: var(--s-5) 0 var(--s-6);
  display: grid;
  gap: var(--s-3);
}
.service li {
  display: flex;
  gap: var(--s-3);
  align-items: flex-start;
  font-size: var(--step--1);
  line-height: 1.5;
}
.service li svg {
  flex-shrink: 0;
  margin-top: 3px;
  color: var(--red-600);
}
.service .btn-row {
  margin-top: auto;
}

.tech-strip {
  margin-top: var(--s-7);
  padding-top: var(--s-6);
  border-top: 1px solid var(--line);
}
.tech-strip h3 {
  font-size: var(--step--1);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-400);
  text-align: center;
  margin-bottom: var(--s-5);
}
.tech-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--s-3);
}
.tech-list li {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  padding: 0.45rem 0.9rem;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  font-size: var(--step--1);
  font-weight: 500;
  color: var(--ink-700);
}
.tech-list img {
  width: 18px;
  height: 18px;
  object-fit: contain;
}

/* ---------- 9. Stats ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 12rem), 1fr));
  gap: var(--s-5);
  padding: clamp(2rem, 4vw, 3rem);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--ink-900), var(--ink-800));
  color: #fff;
}
.stat {
  text-align: center;
  padding-inline: var(--s-3);
}
.stat dt {
  font-family: "Roboto Condensed", Roboto, sans-serif;
  font-size: clamp(2.25rem, 1.8rem + 2vw, 3.25rem);
  font-weight: 700;
  line-height: 1;
  color: #fff;
}
.stat dd {
  margin: var(--s-3) 0 0;
  font-size: var(--step--1);
  line-height: 1.45;
  color: rgba(255, 255, 255, 0.68);
}

/* ---------- 10. Work / portfolio ---------- */
.work-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 20rem), 1fr));
  gap: var(--s-5);
}
.work-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition:
    transform 0.25s var(--ease),
    box-shadow 0.25s var(--ease),
    border-color 0.25s var(--ease);
}
.work-card:hover {
  transform: translateY(-4px);
  border-color: var(--red-100);
  box-shadow: var(--shadow-lg);
}
.work-card__media {
  display: grid;
  place-items: center;
  aspect-ratio: 16 / 9;
  padding: var(--s-5);
  background: var(--bg-sunken);
  border-bottom: 1px solid var(--line);
}
.work-card__media img {
  max-height: 100%;
  width: auto;
  object-fit: contain;
  transition: transform 0.35s var(--ease);
}
.work-card:hover .work-card__media img {
  transform: scale(1.04);
}
.work-card__body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: var(--s-5);
}
.work-card h3 {
  font-size: var(--step-1);
}
.work-card__tagline {
  margin-top: var(--s-2);
  font-size: var(--step--1);
  color: var(--red-600);
  font-weight: 600;
}
.work-card p.work-card__desc {
  margin-top: var(--s-3);
  font-size: var(--step--1);
  line-height: 1.55;
  color: var(--ink-500);
}
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
  margin-top: var(--s-5);
}
.tag {
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-pill);
  background: var(--bg-sunken);
  border: 1px solid var(--line);
  font-size: 0.8125rem;
  color: var(--ink-500);
}
.work-card__link {
  margin-top: var(--s-5);
  align-self: flex-start;
  font-weight: 600;
  font-size: var(--step--1);
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
}
/* Whole card clickable, link stays the accessible name */
.work-card__link::after {
  content: "";
  position: absolute;
  inset: 0;
}
.work-card__link .arrow {
  transition: transform 0.2s var(--ease);
}
.work-card:hover .work-card__link .arrow {
  transform: translateX(4px);
}

/* ---------- 11. Process ---------- */
.process {
  counter-reset: step;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 15rem), 1fr));
  gap: var(--s-5);
}
.process li {
  counter-increment: step;
  padding-top: var(--s-5);
  border-top: 2px solid var(--line);
}
.process li::before {
  content: "0" counter(step);
  display: block;
  font-family: "Roboto Condensed", Roboto, sans-serif;
  font-size: var(--step-2);
  font-weight: 700;
  color: var(--red-600);
  margin-bottom: var(--s-2);
}
.process h3 {
  font-size: var(--step-1);
  margin-bottom: var(--s-2);
}
.process p {
  font-size: var(--step--1);
  color: var(--ink-500);
  line-height: 1.55;
}

/* ---------- 12. CTA band ---------- */
.cta-band {
  display: grid;
  gap: var(--s-6);
  align-items: center;
  padding: clamp(2.25rem, 5vw, 3.5rem);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--red-700), var(--red-600));
  color: #fff;
  box-shadow: var(--shadow-lg);
}
@media (min-width: 860px) {
  .cta-band {
    grid-template-columns: 1fr auto;
  }
}
.cta-band h2 {
  color: #fff;
  font-size: var(--step-3);
}
.cta-band p {
  margin-top: var(--s-3);
  color: rgba(255, 255, 255, 0.85);
  max-width: 38rem;
}

/* ---------- 13. Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 21rem), 1fr));
  gap: var(--s-6);
  align-items: start;
}
.contact-panel {
  padding: clamp(1.75rem, 3vw, 2.25rem);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}
.contact-panel h3 {
  font-size: var(--step-2);
  margin-bottom: var(--s-5);
}
.contact-list {
  display: grid;
  gap: var(--s-5);
}
.contact-list li {
  display: flex;
  gap: var(--s-4);
}
.contact-list svg {
  flex-shrink: 0;
  margin-top: 4px;
  color: var(--red-600);
}
.contact-list strong {
  display: block;
  font-size: var(--step--1);
  font-weight: 600;
  color: var(--ink-900);
  margin-bottom: 2px;
}
.contact-list span,
.contact-list a {
  font-size: var(--step--1);
  line-height: 1.5;
  color: var(--ink-500);
}
.contact-list a:hover {
  color: var(--red-600);
}

.field {
  margin-bottom: var(--s-4);
}
.field label {
  display: block;
  margin-bottom: var(--s-2);
  font-size: var(--step--1);
  font-weight: 600;
  color: var(--ink-800);
}
.field .hint {
  font-weight: 400;
  color: var(--ink-400);
}
.field input,
.field textarea,
.field select {
  width: 100%;
  padding: 0.75rem 0.875rem;
  background: #fff;
  border: 1.5px solid var(--line-strong);
  border-radius: var(--radius-sm);
  font-size: var(--step-0);
  transition:
    border-color 0.2s var(--ease),
    box-shadow 0.2s var(--ease);
}
.field textarea {
  min-height: 8rem;
  resize: vertical;
}
.field input:focus,
.field textarea:focus,
.field select:focus {
  outline: none;
  border-color: var(--red-600);
  box-shadow: 0 0 0 4px rgba(184, 41, 39, 0.12);
}
.field-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 12rem), 1fr));
  gap: var(--s-4);
}
.form-alt {
  display: flex;
  align-items: center;
  gap: var(--s-4);
  margin: var(--s-5) 0 var(--s-4);
  font-size: var(--step--1);
  color: var(--ink-400);
}
.form-alt::before,
.form-alt::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
}
.form-status {
  margin-top: var(--s-4);
  padding: var(--s-3) var(--s-4);
  border-radius: var(--radius-sm);
  font-size: var(--step--1);
  background: var(--red-50);
  border: 1px solid var(--red-100);
}
.form-status:empty {
  display: none;
}

/* ---------- 14. Footer ---------- */
.site-footer {
  background: var(--ink-900);
  color: rgba(255, 255, 255, 0.72);
  padding-block: var(--s-8) var(--s-5);
  font-size: var(--step--1);
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 13rem), 1fr));
  gap: var(--s-6);
}
.footer-grid > div:first-child {
  grid-column: span 1;
  max-width: 24rem;
}
.site-footer .brand {
  color: #fff;
  margin-bottom: var(--s-4);
}
.site-footer h4 {
  color: #fff;
  font-size: var(--step--1);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--s-4);
}
.site-footer ul {
  display: grid;
  gap: var(--s-3);
}
.site-footer a {
  color: rgba(255, 255, 255, 0.72);
}
.site-footer a:hover {
  color: #fff;
}
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-4);
  justify-content: space-between;
  margin-top: var(--s-7);
  padding-top: var(--s-5);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.5);
}

/* ---------- 15. Floating WhatsApp ---------- */
.wa-float {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 90;
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
  padding: 0.8rem 1.15rem;
  background: var(--whatsapp-ink);
  color: #fff;
  font-weight: 600;
  font-size: var(--step--1);
  border-radius: var(--radius-pill);
  box-shadow: 0 10px 28px -8px rgba(37, 211, 102, 0.7);
  transition:
    transform 0.25s var(--ease),
    box-shadow 0.25s var(--ease);
}
.wa-float:hover {
  transform: translateY(-3px);
  color: #fff;
}
@media (max-width: 640px) {
  .wa-float {
    padding: 0.9rem;
    right: 16px;
    bottom: 16px;
  }
  .wa-float span {
    display: none;
  }
}

/* ---------- 16. Reveal on scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity 0.6s var(--ease),
    transform 0.6s var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- 17. Responsive ---------- */
@media (max-width: 960px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .hero-card--offset {
    margin-left: 0;
  }
}

@media (max-width: 840px) {
  .nav-toggle {
    display: flex;
  }
  .header-cta {
    display: none;
  }
  .nav {
    position: fixed;
    inset: 72px 0 auto;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--s-4) clamp(1.25rem, 4vw, 2.5rem) var(--s-6);
    background: #fff;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-lg);
    max-height: calc(100dvh - 72px);
    overflow-y: auto;
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition:
      opacity 0.22s var(--ease),
      transform 0.22s var(--ease),
      visibility 0.22s;
  }
  .nav[data-open="true"] {
    opacity: 1;
    visibility: visible;
    transform: none;
  }
  .nav a,
  .has-sub > button {
    width: 100%;
    padding: 0.875rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: var(--step-0);
    text-align: left;
  }
  .nav > li + li {
    border-top: 1px solid var(--line);
  }
  .submenu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    border: 0;
    box-shadow: none;
    padding: 0 0 var(--s-3) var(--s-4);
    display: none;
  }
  .has-sub[data-open="true"] .submenu {
    display: block;
  }
  .nav .btn {
    margin-top: var(--s-5);
    width: 100%;
  }
  /* `.nav a` would otherwise win over `.btn--primary` and grey out the label */
  .nav a.btn--primary,
  .nav a.btn--primary:hover {
    color: #fff;
    background: var(--red-600);
  }
  .nav .nav-cta-mobile {
    border-top: 0;
  }
}

@media (min-width: 841px) {
  .nav-toggle {
    display: none;
  }
  .nav .nav-cta-mobile {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* =============================================================
   Interior pages (portfolio detail + blog) — restyles the
   existing class names with the v2 design system.
   ============================================================= */

/* ---- Back link (portfolio + blog) ---- */
.back-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  margin-bottom: var(--s-6);
  font-size: var(--step--1);
  font-weight: 600;
  color: var(--ink-500);
  transition: color 0.2s var(--ease), transform 0.2s var(--ease);
}
.back-btn:hover {
  color: var(--red-600);
  transform: translateX(-3px);
}
.back-btn .fa {
  color: inherit;
}

/* ---- The .modern-button used on interior pages ---- */
.modern-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-2);
  padding: 0.875rem 1.5rem;
  border-radius: var(--radius-pill);
  border: 1.5px solid transparent;
  background: var(--red-600);
  color: #fff;
  font-size: var(--step-0);
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s var(--ease), transform 0.2s var(--ease),
    box-shadow 0.2s var(--ease);
  box-shadow: 0 6px 18px -6px rgba(184, 41, 39, 0.55);
}
.modern-button:hover {
  background: var(--red-700);
  color: #fff;
  transform: translateY(-2px);
}

/* =============================================================
   Portfolio detail
   ============================================================= */
.portfolio-detail-body {
  background: var(--bg);
}
.portfolio-detail-body .bg-animation {
  display: none;
}
.portfolio-detail {
  max-width: var(--wrap);
  margin-inline: auto;
  padding: var(--s-7) clamp(1.25rem, 4vw, 2.5rem) var(--s-8);
}
.detail-header {
  max-width: 52rem;
  margin-bottom: var(--s-7);
  text-align: left;
}
.detail-title {
  font-size: var(--step-4);
  letter-spacing: -0.03em;
  margin-bottom: var(--s-3);
}
.detail-tagline {
  font-size: var(--step-2);
  color: var(--red-600);
  font-style: normal;
  font-weight: 600;
  margin-bottom: var(--s-5);
}
.detail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
  justify-content: flex-start;
  margin-bottom: var(--s-6);
}
.detail-tags .portfolio-tag {
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-pill);
  background: var(--red-50);
  border: 1px solid var(--red-100);
  color: var(--red-700);
  font-size: var(--step--1);
  font-weight: 500;
  text-transform: none;
  letter-spacing: 0;
}
.detail-image {
  margin: 0;
  padding: clamp(1.5rem, 4vw, 3rem);
  background: var(--bg-sunken);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  text-align: center;
}
.detail-image img {
  display: inline-block;
  max-width: 100%;
  max-height: 360px;
  width: auto;
  border-radius: var(--radius);
}
.detail-image img:hover {
  transform: none;
}
.detail-content {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: var(--s-6);
  align-items: start;
}
.content-main,
.content-sidebar {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 3vw, 2.5rem);
  text-align: left;
}
.content-main p {
  margin-bottom: var(--s-4);
  color: var(--ink-700);
}
.content-main > .section-title:not(:first-child),
.content-main > h3.section-title {
  margin-top: var(--s-6);
}
.section-title {
  font-size: var(--step-2);
  font-weight: 700;
  color: var(--ink-900);
  margin-bottom: var(--s-4);
  padding-bottom: var(--s-3);
  border-bottom: 2px solid var(--red-100);
}
.feature-list {
  padding: 0 0 var(--s-2);
  display: grid;
  gap: 0;
}
.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--s-3);
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--line);
  color: var(--ink-700);
}
.feature-list li:last-child {
  border-bottom: none;
}
.feature-list i {
  color: var(--red-600);
  margin-top: 4px;
  width: 18px;
  text-align: center;
}
.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(88px, 1fr));
  gap: var(--s-3);
  margin-top: var(--s-4);
}
.tech-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--s-2);
  padding: var(--s-4) var(--s-2);
  background: var(--bg-sunken);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-align: center;
  color: var(--ink-700);
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}
.tech-item:hover {
  transform: translateY(-3px);
  border-color: var(--red-100);
  background: #fff;
}
.tech-item img {
  width: 34px;
  height: 34px;
  object-fit: contain;
}
.tech-item span {
  font-size: 0.8125rem;
  font-weight: 600;
}
.content-sidebar {
  position: sticky;
  top: 96px;
}
.project-detail-item {
  padding-bottom: var(--s-4);
  margin-bottom: var(--s-4);
  border-bottom: 1px solid var(--line);
}
.project-detail-label {
  font-size: var(--step--1);
  font-weight: 600;
  color: var(--ink-400);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 4px;
}
.project-detail-value {
  margin: 0;
  color: var(--ink-900);
  font-weight: 500;
}
.content-sidebar .modern-button {
  width: 100%;
  margin-top: var(--s-2);
}
@media (max-width: 860px) {
  .detail-content {
    grid-template-columns: 1fr;
  }
  .content-sidebar {
    position: static;
  }
}

/* =============================================================
   Blog
   ============================================================= */
.blog-body {
  background: var(--bg);
}
/* Hide the legacy blog topbar/brand — pages now use .site-header */
.blog-topbar {
  display: none;
}
.blog-listing,
.blog-article {
  max-width: var(--wrap);
  margin-inline: auto;
  padding: var(--s-7) clamp(1.25rem, 4vw, 2.5rem) var(--s-8);
}
.blog-hero {
  max-width: 46rem;
  margin-bottom: var(--s-7);
  text-align: left;
}
.blog-hero h1 {
  font-size: var(--step-4);
  letter-spacing: -0.03em;
  margin-bottom: var(--s-4);
}
.blog-hero p {
  font-size: var(--step-1);
  color: var(--ink-500);
}
.cat-filter {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
  margin-bottom: var(--s-7);
}
.cat-chip {
  padding: 0.45rem 1rem;
  border-radius: var(--radius-pill);
  border: 1.5px solid var(--line-strong);
  background: #fff;
  color: var(--ink-500);
  font-size: var(--step--1);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s var(--ease);
}
.cat-chip:hover {
  border-color: var(--ink-700);
  color: var(--ink-900);
}
.cat-chip.is-active {
  background: var(--red-600);
  border-color: var(--red-600);
  color: #fff;
}
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 20rem), 1fr));
  gap: var(--s-5);
}
.blog-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  color: inherit;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease),
    border-color 0.25s var(--ease);
}
.blog-card:hover {
  transform: translateY(-4px);
  border-color: var(--red-100);
  box-shadow: var(--shadow-lg);
}
.blog-card-img {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg-sunken);
  border-bottom: 1px solid var(--line);
}
.blog-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s var(--ease);
}
.blog-card:hover .blog-card-img img {
  transform: scale(1.04);
}
.blog-card-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: var(--s-5);
}
.post-cat {
  display: inline-block;
  align-self: flex-start;
  padding: 0.2rem 0.65rem;
  border-radius: var(--radius-pill);
  background: var(--red-50);
  color: var(--red-700);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: var(--s-3);
}
.blog-card-title {
  font-size: var(--step-1);
  line-height: 1.25;
  margin-bottom: var(--s-3);
  color: var(--ink-900);
}
.blog-card-excerpt {
  font-size: var(--step--1);
  color: var(--ink-500);
  line-height: 1.55;
  margin-bottom: var(--s-4);
}
.post-meta {
  margin-top: auto;
  font-size: var(--step--1);
  color: var(--ink-400);
}

/* ---- Blog article (single post) ---- */
.blog-article article {
  max-width: 44rem;
  margin-inline: auto;
}
.post-header {
  margin-bottom: var(--s-6);
  text-align: left;
}
.post-header .post-cat {
  margin-bottom: var(--s-4);
}
.post-header h1 {
  font-size: var(--step-3);
  letter-spacing: -0.025em;
  margin-bottom: var(--s-4);
}
.post-header .post-meta {
  margin-bottom: var(--s-5);
}
.post-hero {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
}
.post-hero img {
  width: 100%;
  height: auto;
  display: block;
}
.post-body {
  font-size: var(--step-1);
  line-height: 1.75;
  color: var(--ink-700);
}
.post-body > * + * {
  margin-top: var(--s-5);
}
.post-body h2 {
  font-size: var(--step-2);
  margin-top: var(--s-7);
}
.post-body h3 {
  font-size: var(--step-1);
  margin-top: var(--s-6);
}
.post-body a {
  color: var(--red-600);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.post-body ul,
.post-body ol {
  padding-left: 1.4rem;
  display: grid;
  gap: var(--s-2);
}
.post-body ul {
  list-style: disc;
}
.post-body ol {
  list-style: decimal;
}
.post-body li {
  line-height: 1.6;
}
.post-body img {
  border-radius: var(--radius);
  margin-block: var(--s-5);
}
.post-body blockquote {
  border-left: 3px solid var(--red-600);
  padding-left: var(--s-5);
  color: var(--ink-500);
  font-style: italic;
}

/* Blog post CTA band (uses existing .cta-band markup) */
.blog-article .cta-band,
.cta-band-actions {
  text-align: left;
}
.cta-band-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-3);
  margin-top: var(--s-4);
}
.cta-band .modern-button {
  background: #fff;
  color: var(--ink-900);
  box-shadow: none;
}
.cta-band .modern-button:hover {
  background: #fff;
  color: var(--red-700);
}
.cta-band .modern-button.wa-btn {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.4);
  color: #fff;
}