/* =============================================================================
   HAVALANDIRMA ISTANBUL — CORE STYLESHEET
   Design system implementation: color, type, spacing, radius, shadow, buttons,
   forms, cards, hover & animation tokens, plus every section component used
   across the site. Bootstrap 5 is used strictly for its grid + a few JS
   behaviors (navbar collapse, dropdown, accordion); all visual language below
   is fully custom so the site does not read as a Bootstrap theme.
   ========================================================================== */

/* ---------- Design tokens ---------- */
:root {
  /* Color system */
  --c-graphite: #12151a;
  --c-graphite-soft: #1a1e24;
  --c-steel-800: #1f242b;
  --c-steel-700: #262c34;
  --c-steel-600: #3a434c;
  --c-steel-400: #5b6570;
  --c-fog-300: #7d8790;
  --c-fog-200: #a9b0b8;
  --c-fog-100: #dee1e4;
  --c-paper: #f5f6f7;
  --c-white: #ffffff;

  --c-accent: #2f6fed;          /* Flow Blue */
  --c-accent-dim: #1f4fc4;
  --c-accent-soft: rgba(47, 111, 237, 0.14);
  --c-copper: #c97d3e;
  --c-success: #3fae72;
  --c-danger: #e2574c;

  --border-on-dark: rgba(255, 255, 255, 0.09);
  --border-on-dark-strong: rgba(255, 255, 255, 0.18);
  --border-on-light: #e1e4e7;

  /* Typography */
  --font-display: "Manrope", "Segoe UI", Arial, sans-serif;
  --font-body: "Inter", "Segoe UI", Arial, sans-serif;

  /* Spacing scale */
  --sp-1: 8px;
  --sp-2: 16px;
  --sp-3: 24px;
  --sp-4: 40px;
  --sp-5: 64px;
  --sp-6: 96px;
  --sp-7: 140px;

  /* Radius */
  --r-sm: 4px;
  --r-md: 8px;
  --r-none: 0;

  /* Motion */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --dur-fast: 200ms;
  --dur-base: 400ms;
  --dur-slow: 700ms;

  --container-max: 1280px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background: var(--c-graphite);
  color: var(--c-fog-100);
  font-size: 17px;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
}

ul {
  list-style: none;
}

.container-custom {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 40px;
}

@media (max-width: 767px) {
  .container-custom {
    padding: 0 20px;
  }
}

/* ---------- Typography ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  color: inherit;
  letter-spacing: -0.01em;
}

.display-1 {
  font-size: 64px;
  line-height: 1.05;
  letter-spacing: -0.02em;
  font-weight: 650;
}

.display-2 {
  font-size: 40px;
  line-height: 1.15;
  letter-spacing: -0.01em;
  font-weight: 620;
}

.display-3 {
  font-size: 24px;
  line-height: 1.3;
  font-weight: 600;
}

.body-lg {
  font-size: 19px;
  line-height: 1.65;
  color: var(--c-fog-200);
}

.body-base {
  font-size: 17px;
  line-height: 1.6;
}

.text-small {
  font-size: 13px;
  line-height: 1.4;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-accent);
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--c-accent);
  display: inline-block;
}

.eyebrow--muted {
  color: var(--c-fog-300);
}

.eyebrow--muted::before {
  background: var(--c-fog-300);
}

.text-muted-dark {
  color: var(--c-fog-200);
}

.text-muted-light {
  color: var(--c-steel-400);
}

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

.section--tight {
  padding: 64px 0;
}

.section--dark {
  background: var(--c-graphite);
  color: var(--c-fog-100);
}

.section--soft {
  background: var(--c-graphite-soft);
  color: var(--c-fog-100);
}

.section--light {
  background: var(--c-paper);
  color: var(--c-graphite);
}

.section--light .eyebrow--muted {
  color: var(--c-steel-400);
}

.section--light .text-muted-dark {
  color: var(--c-steel-600);
}

.section-head {
  max-width: 640px;
  margin-bottom: 56px;
}

.section-head--wide {
  max-width: 780px;
}

.section-head .display-2 {
  margin-top: 14px;
}

@media (max-width: 767px) {
  .section {
    padding: 64px 0;
  }
  .section-head {
    margin-bottom: 36px;
  }
}

.hr-line {
  height: 1px;
  width: 100%;
  background: var(--border-on-dark);
  border: none;
}

.section--light .hr-line {
  background: var(--border-on-light);
}

/* ---------- Buttons ---------- */
.btn-flow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 52px;
  padding: 14px 30px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: var(--r-sm);
  transition: background var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
  text-align: center;
  line-height: 1.3;
}

.btn-flow--default {
  min-height: 44px;
  padding: 10px 24px;
}

.btn-flow--sm {
  min-height: 36px;
  padding: 8px 18px;
  font-size: 12px;
}

.btn-flow--primary {
  background: var(--c-accent);
  color: var(--c-white);
}

.btn-flow--primary:hover {
  background: var(--c-accent-dim);
}

.btn-flow--secondary {
  background: transparent;
  border: 1px solid var(--border-on-dark-strong);
  color: var(--c-fog-100);
}

.btn-flow--secondary:hover {
  border-color: var(--c-accent);
  color: var(--c-accent);
}

.section--light .btn-flow--secondary {
  border-color: var(--border-on-light);
  color: var(--c-graphite);
}

.section--light .btn-flow--secondary:hover {
  border-color: var(--c-accent);
  color: var(--c-accent);
}

.btn-flow--ghost {
  height: auto;
  min-height: 0;
  padding: 0;
  background: none;
  color: var(--c-accent);
  position: relative;
}

.btn-flow--ghost .link-underline {
  position: relative;
  display: inline-block;
}

.btn-flow--ghost .link-underline::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-base) var(--ease);
}

.btn-flow--ghost:hover .link-underline::after {
  transform: scaleX(1);
}

.btn-flow--ghost i {
  transition: transform var(--dur-fast) var(--ease);
}

.btn-flow--ghost:hover i {
  transform: translateX(4px);
}

.btn-icon-circle {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 1px solid var(--border-on-dark-strong);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--c-fog-100);
  transition: border-color var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease);
}

.btn-icon-circle:hover {
  border-color: var(--c-accent);
  background: var(--c-accent-soft);
  color: var(--c-accent);
}

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 26px 0;
  transition: background var(--dur-base) var(--ease), padding var(--dur-base) var(--ease), border-color var(--dur-base) var(--ease);
  border-bottom: 1px solid transparent;
}

.site-header.is-scrolled {
  background: rgba(18, 21, 26, 0.92);
  backdrop-filter: blur(10px);
  padding: 16px 0;
  border-bottom: 1px solid var(--border-on-dark);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  line-height: 1;
}

.brand__icon {
  height: 38px;
  width: auto;
  flex-shrink: 0;
  transition: height var(--dur-base) var(--ease);
}

.site-header.is-scrolled .brand__icon {
  height: 32px;
}

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

.brand__name {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--c-white);
}

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

.brand__tag {
  margin-top: 5px;
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-fog-300);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 40px;
}

.main-nav__list {
  display: flex;
  align-items: center;
  gap: 36px;
}

.main-nav__link {
  font-size: 14px;
  font-weight: 500;
  color: var(--c-fog-100);
  position: relative;
  padding: 6px 0;
}

.main-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--c-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-base) var(--ease);
}

.main-nav__link:hover::after,
.main-nav__link.is-active::after {
  transform: scaleX(1);
}

.main-nav__link.is-active {
  color: var(--c-white);
}

.nav-dropdown {
  position: relative;
}

.nav-dropdown__toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.nav-dropdown__toggle i {
  font-size: 11px;
  transition: transform var(--dur-fast) var(--ease);
}

.nav-dropdown__menu {
  position: absolute;
  top: calc(100% + 18px);
  left: -20px;
  min-width: 280px;
  background: var(--c-steel-800);
  border: 1px solid var(--border-on-dark);
  border-radius: var(--r-md);
  padding: 14px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity var(--dur-base) var(--ease), transform var(--dur-base) var(--ease), visibility var(--dur-base);
}

.nav-dropdown:hover .nav-dropdown__menu,
.nav-dropdown.is-open .nav-dropdown__menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-dropdown:hover .nav-dropdown__toggle i {
  transform: rotate(180deg);
}

.nav-dropdown__item {
  display: block;
  padding: 10px 14px;
  font-size: 13.5px;
  border-radius: var(--r-sm);
  color: var(--c-fog-200);
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}

.nav-dropdown__item:hover {
  background: rgba(255, 255, 255, 0.04);
  color: var(--c-white);
}

.nav-dropdown__item--all {
  margin-top: 6px;
  border-top: 1px solid var(--border-on-dark);
  padding-top: 12px;
  color: var(--c-accent);
  font-weight: 600;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 20px;
}

.header-actions__phone {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--c-fog-200);
}

.header-actions__phone i {
  color: var(--c-accent);
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border-on-dark-strong);
  border-radius: var(--r-sm);
  color: var(--c-white);
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

/* Mobile off-canvas nav */
.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: 1100;
  background: var(--c-graphite-soft);
  transform: translateX(100%);
  transition: transform var(--dur-slow) var(--ease);
  padding: 26px 24px;
  overflow-y: auto;
}

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

.mobile-nav__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 40px;
}

.mobile-nav__close {
  width: 40px;
  height: 40px;
  border: 1px solid var(--border-on-dark-strong);
  border-radius: var(--r-sm);
  color: var(--c-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.mobile-nav__list {
  display: flex;
  flex-direction: column;
}

.mobile-nav__link {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 600;
  padding: 16px 0;
  border-bottom: 1px solid var(--border-on-dark);
  color: var(--c-fog-100);
}

.mobile-nav__item {
  border-bottom: 1px solid var(--border-on-dark);
}

.mobile-nav__item .mobile-nav__link {
  border-bottom: none;
}

.mobile-nav__toggle {
  width: 100%;
  text-align: left;
}

.mobile-nav__toggle i {
  transition: transform var(--dur-fast) var(--ease);
}

.mobile-nav__toggle.is-open i {
  transform: rotate(180deg);
}

.mobile-nav__sub {
  display: none;
  flex-direction: column;
  padding: 0 0 18px 4px;
}

.mobile-nav__sub a {
  font-size: 15px;
  color: var(--c-fog-300);
  padding: 8px 0;
}

.mobile-nav__cta {
  margin-top: 32px;
}

.nav-scrim {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1050;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur-base) var(--ease), visibility var(--dur-base);
}

.nav-scrim.is-open {
  opacity: 1;
  visibility: visible;
}

body.nav-locked {
  overflow: hidden;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 140px;
  padding-bottom: 100px;
  background: var(--c-graphite);
  overflow: hidden;
}

.hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
  background: linear-gradient(180deg, #171b21 0%, #0f1216 100%);
}

.hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.55;
}

.hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(18, 21, 26, 0.55) 0%, rgba(18, 21, 26, 0.86) 100%);
}

.hero__grid-pattern {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(var(--border-on-dark) 1px, transparent 1px), linear-gradient(90deg, var(--border-on-dark) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.5;
  z-index: 1;
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 760px;
}

.hero__content .display-1 {
  margin-top: 20px;
  color: var(--c-white);
}

.hero__lede {
  margin-top: 26px;
  max-width: 560px;
}

.hero__actions {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-top: 44px;
}

.hero__scroll-cue {
  position: absolute;
  bottom: 40px;
  left: 40px;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--c-fog-300);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.hero__scroll-cue .scroll-line {
  width: 1px;
  height: 34px;
  background: var(--c-fog-300);
  position: relative;
  overflow: hidden;
}

.hero__scroll-cue .scroll-line::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 40%;
  background: var(--c-accent);
  animation: scrollDrip 2.6s var(--ease) infinite;
}

@keyframes scrollDrip {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(250%); }
}

/* Overlap stat bar under hero */
.hero-overlap {
  position: relative;
  z-index: 3;
  margin-top: -86px;
}

.hero-overlap__bar {
  background: var(--c-steel-800);
  border: 1px solid var(--border-on-dark);
  border-radius: var(--r-md);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.hero-overlap__item {
  padding: 30px 34px;
  border-right: 1px solid var(--border-on-dark);
}

.hero-overlap__item:last-child {
  border-right: none;
}

.hero-overlap__item .stat-value {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 650;
  color: var(--c-white);
}

.hero-overlap__item .stat-label {
  margin-top: 6px;
  font-size: 12.5px;
  color: var(--c-fog-300);
}

/* ---------- Page hero (inner pages) ---------- */
.page-hero {
  padding-top: 200px;
  padding-bottom: 90px;
  background: var(--c-graphite);
  position: relative;
  overflow: hidden;
}

.page-hero__row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 60px;
}

.page-hero__row--visual {
  align-items: center;
}

.page-hero__text {
  flex: 1;
  min-width: 0;
}

.page-hero__visual {
  flex: 0 0 400px;
  max-width: 400px;
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--border-on-dark);
}

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

.page-hero__visual--illustration {
  background: var(--c-graphite-soft);
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-hero__visual--illustration svg {
  width: 78%;
  height: 78%;
}

.page-hero__breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--c-fog-300);
  margin-bottom: 22px;
}

.page-hero__breadcrumb a:hover {
  color: var(--c-accent);
}

.page-hero__title {
  color: var(--c-white);
  margin-top: 16px;
  max-width: 680px;
}

.page-hero__lede {
  max-width: 460px;
  text-align: left;
}

/* ---------- Capabilities ---------- */
.cap-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--border-on-dark);
  border-left: 1px solid var(--border-on-dark);
}

.cap-item {
  padding: 44px 40px;
  border-right: 1px solid var(--border-on-dark);
  border-bottom: 1px solid var(--border-on-dark);
  transition: background var(--dur-base) var(--ease);
}

.cap-item:nth-child(1),
.cap-item:nth-child(2) {
  grid-column: span 2;
  padding: 52px 44px;
}

.cap-item:nth-child(1) h3,
.cap-item:nth-child(2) h3 {
  font-size: 25px;
}

.cap-item:nth-child(1) p,
.cap-item:nth-child(2) p {
  max-width: 420px;
}

.cap-item:hover {
  background: rgba(255, 255, 255, 0.02);
}

.cap-item__index {
  font-family: var(--font-display);
  font-size: 13px;
  color: var(--c-fog-300);
}

.cap-item__icon {
  margin-top: 26px;
  font-size: 28px;
  color: var(--c-accent);
}

.cap-item h3 {
  margin-top: 22px;
  font-size: 21px;
}

.cap-item p {
  margin-top: 12px;
  color: var(--c-fog-200);
  font-size: 15.5px;
}

.cap-item__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 22px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--c-fog-200);
  transition: color var(--dur-fast) var(--ease);
}

.cap-item:hover .cap-item__link {
  color: var(--c-accent);
}

.cap-item:hover .cap-item__link i {
  transform: translateX(4px);
}

.cap-item__link i {
  transition: transform var(--dur-fast) var(--ease);
}

/* ---------- Industries slider ---------- */
.industries-slider {
  overflow: visible !important;
}

.industry-card {
  position: relative;
  height: 340px;
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--border-on-dark);
}

.industry-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--dur-slow) var(--ease);
}

.industry-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(18, 21, 26, 0) 30%, rgba(18, 21, 26, 0.92) 100%);
}

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

.industry-card__label {
  position: absolute;
  left: 24px;
  bottom: 22px;
  z-index: 2;
  color: var(--c-white);
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
}

.industry-card__meta {
  position: absolute;
  left: 24px;
  top: 20px;
  z-index: 2;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-fog-200);
}

.industries-nav {
  display: flex;
  gap: 12px;
}

/* ---------- Solutions zig-zag ---------- */
.solution-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  padding: 64px 0;
  border-bottom: 1px solid var(--border-on-dark);
}

.solution-row:first-of-type {
  padding-top: 0;
}

.solution-row:last-of-type {
  border-bottom: none;
  padding-bottom: 0;
}

.solution-row--reverse .solution-row__media {
  order: 2;
}

.solution-row--reverse .solution-row__content {
  order: 1;
}

.solution-row__media {
  position: relative;
  border-radius: var(--r-md);
  overflow: hidden;
  aspect-ratio: 4 / 3;
}

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

.solution-row__index {
  position: absolute;
  top: 20px;
  left: 20px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(18, 21, 26, 0.75);
  border: 1px solid var(--border-on-dark-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 14px;
  color: var(--c-white);
}

.solution-row__content h3 {
  font-size: 26px;
  margin-top: 14px;
}

.solution-row__content p {
  margin-top: 16px;
  color: var(--c-fog-200);
}

.solution-row__list {
  margin-top: 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.solution-row__list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 14.5px;
  color: var(--c-fog-200);
}

.solution-row__list i {
  color: var(--c-accent);
  margin-top: 3px;
}

/* ---------- Trust grid ---------- */
.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border-on-light);
  border: 1px solid var(--border-on-light);
}

.trust-item {
  background: var(--c-paper);
  padding: 40px 32px;
}

.trust-item i {
  font-size: 26px;
  color: var(--c-accent);
}

.trust-item h3 {
  margin-top: 22px;
  font-size: 18px;
  color: var(--c-graphite);
}

.trust-item p {
  margin-top: 10px;
  font-size: 14.5px;
  color: var(--c-steel-600);
}

/* ---------- Process timeline ---------- */
.process-track {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 28px;
  position: relative;
}

.process-track::before {
  content: "";
  position: absolute;
  top: 22px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--border-on-dark);
}

.process-step {
  position: relative;
}

.process-step__num {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--c-graphite);
  border: 1px solid var(--border-on-dark-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 14px;
  color: var(--c-accent);
  position: relative;
  z-index: 2;
}

.process-step h3 {
  margin-top: 24px;
  font-size: 17px;
}

.process-step p {
  margin-top: 10px;
  font-size: 14px;
  color: var(--c-fog-300);
}

.process-cta {
  margin-top: 64px;
  text-align: center;
}

/* ---------- Reach split ---------- */
.reach-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 70px;
  align-items: center;
}

.reach-map {
  position: relative;
  aspect-ratio: 1 / 1;
}

.reach-map svg {
  width: 100%;
  height: 100%;
}

.reach-map__pin {
  fill: var(--c-accent);
}

.reach-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border-on-dark);
  border: 1px solid var(--border-on-dark);
}

.reach-stat {
  background: var(--c-graphite-soft);
  padding: 34px 28px;
}

.reach-stat .stat-value {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 650;
  color: var(--c-white);
}

.reach-stat .stat-label {
  margin-top: 8px;
  font-size: 13px;
  color: var(--c-fog-300);
}

/* ---------- Projects grid ---------- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.project-card {
  position: relative;
  aspect-ratio: 3 / 4;
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--border-on-dark);
}

.project-card:nth-child(2) {
  margin-top: 48px;
}

.project-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--dur-slow) var(--ease);
}

.project-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(18, 21, 26, 0) 40%, rgba(18, 21, 26, 0.94) 100%);
}

.project-card:hover img {
  transform: scale(1.04);
}

.project-card__tag {
  position: absolute;
  top: 22px;
  left: 22px;
  z-index: 2;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-accent);
  background: rgba(18, 21, 26, 0.6);
  padding: 6px 12px;
  border: 1px solid var(--border-on-dark-strong);
}

.project-card__title {
  position: absolute;
  left: 22px;
  bottom: 22px;
  right: 22px;
  z-index: 2;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 600;
  color: var(--c-white);
}

/* ---------- Impact band ---------- */
.impact-band {
  background: var(--c-graphite-soft);
  border-top: 1px solid var(--border-on-dark);
  border-bottom: 1px solid var(--border-on-dark);
}

.impact-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.impact-item {
  padding: 20px 32px;
  border-right: 1px solid var(--border-on-dark);
}

.impact-item:last-child {
  border-right: none;
}

.impact-item .stat-value {
  font-family: var(--font-display);
  font-size: 34px;
  font-weight: 650;
  color: var(--c-white);
}

.impact-item .stat-label {
  margin-top: 10px;
  font-size: 13.5px;
  color: var(--c-fog-300);
  max-width: 220px;
}

/* ---------- Final CTA ---------- */
.final-cta {
  position: relative;
  text-align: center;
  overflow: hidden;
}

.final-cta__pattern {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(var(--border-on-dark) 1px, transparent 1px), linear-gradient(90deg, var(--border-on-dark) 1px, transparent 1px);
  background-size: 54px 54px;
  opacity: 0.6;
}

.final-cta__inner {
  position: relative;
  z-index: 2;
  max-width: 620px;
  margin: 0 auto;
}

.final-cta .display-2 {
  color: var(--c-white);
}

.final-cta__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 26px;
  margin-top: 38px;
  flex-wrap: wrap;
}

.final-cta__quick {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--c-fog-200);
}

/* ---------- About page ---------- */
.story-block {
  max-width: 760px;
}

.story-block p {
  margin-top: 20px;
  font-size: 18px;
  line-height: 1.75;
  color: var(--c-fog-200);
}

.story-block p:first-of-type {
  margin-top: 0;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border-on-light);
  border: 1px solid var(--border-on-light);
}

.value-item {
  background: var(--c-paper);
  padding: 38px 30px;
}

.value-item i {
  font-size: 24px;
  color: var(--c-accent);
}

.value-item h3 {
  margin-top: 20px;
  font-size: 17px;
  color: var(--c-graphite);
}

.value-item p {
  margin-top: 10px;
  font-size: 14px;
  color: var(--c-steel-600);
}

.team-row {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 70px;
  align-items: center;
}

.team-media {
  border-radius: var(--r-md);
  overflow: hidden;
  aspect-ratio: 5 / 4;
}

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

.team-roles {
  display: flex;
  flex-direction: column;
  gap: 22px;
  margin-top: 30px;
}

.team-role {
  display: flex;
  gap: 18px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--border-on-dark);
}

.team-role:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.team-role__num {
  font-family: var(--font-display);
  font-size: 13px;
  color: var(--c-fog-300);
  padding-top: 2px;
}

.team-role h3 {
  font-size: 16.5px;
}

.team-role p {
  margin-top: 6px;
  font-size: 14px;
  color: var(--c-fog-300);
}

/* ---------- Services pages ---------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border-on-dark);
  border: 1px solid var(--border-on-dark);
}

.service-tile {
  background: var(--c-graphite);
  padding: 44px 36px;
  transition: background var(--dur-base) var(--ease);
}

.service-tile:nth-child(1),
.service-tile:nth-child(2) {
  grid-column: span 2;
  padding: 52px 40px;
}

.service-tile:nth-child(1) h3,
.service-tile:nth-child(2) h3 {
  font-size: 23px;
}

.service-tile:nth-child(1) p,
.service-tile:nth-child(2) p {
  max-width: 440px;
}

.service-tile:hover {
  background: var(--c-graphite-soft);
}

.service-tile__icon {
  font-size: 26px;
  color: var(--c-accent);
}

.service-tile h3 {
  margin-top: 22px;
  font-size: 20px;
}

.service-tile p {
  margin-top: 12px;
  font-size: 14.5px;
  color: var(--c-fog-300);
}

.service-tile__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 20px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--c-fog-200);
}

.service-tile:hover .service-tile__link {
  color: var(--c-accent);
}

.compare-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border-on-light);
  border: 1px solid var(--border-on-light);
}

.compare-col {
  background: var(--c-paper);
  padding: 44px 42px;
}

.compare-col--highlight {
  background: var(--c-graphite);
  color: var(--c-white);
}

.compare-col h3 {
  font-size: 19px;
  color: var(--c-graphite);
}

.compare-col--highlight h3 {
  color: var(--c-white);
}

.compare-col ul {
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.compare-col li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 14.5px;
  color: var(--c-steel-600);
}

.compare-col--highlight li {
  color: var(--c-fog-200);
}

.compare-col li i {
  margin-top: 3px;
}

.compare-col--basic li i {
  color: var(--c-danger);
}

.compare-col--highlight li i {
  color: var(--c-success);
}

/* Service detail page */
.service-scope {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.service-scope__list {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.service-scope__list li {
  display: flex;
  gap: 14px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border-on-dark);
  font-size: 15px;
  color: var(--c-fog-200);
}

.service-scope__list li:last-child {
  border-bottom: none;
}

.service-scope__list i {
  color: var(--c-accent);
  margin-top: 3px;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.tag-chip {
  font-size: 12.5px;
  padding: 8px 16px;
  border: 1px solid var(--border-on-dark-strong);
  border-radius: 999px;
  color: var(--c-fog-200);
}

.service-related {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 26px 0;
  border-top: 1px solid var(--border-on-dark);
  border-bottom: 1px solid var(--border-on-dark);
}

.service-related a {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--c-fog-300);
}

.service-related a:hover {
  color: var(--c-accent);
}

/* ---------- Contact page ---------- */
.contact-split {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 70px;
  align-items: flex-start;
}

.form-field {
  margin-bottom: 26px;
}

.form-field label {
  display: block;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--c-fog-300);
  margin-bottom: 10px;
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border-on-dark-strong);
  color: var(--c-white);
  font-family: var(--font-body);
  font-size: 16px;
  padding: 12px 2px;
  outline: none;
  transition: border-color var(--dur-fast) var(--ease);
  border-radius: 0;
}

.form-field select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23A9B0B8' stroke-width='1.4' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 4px center;
}

.form-field select option {
  background: var(--c-steel-800);
  color: var(--c-white);
}

.form-field textarea {
  resize: vertical;
  min-height: 110px;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  border-color: var(--c-accent);
}

.form-field input::placeholder,
.form-field textarea::placeholder {
  color: var(--c-fog-300);
}

.form-status {
  margin-top: 18px;
  font-size: 14px;
  display: none;
}

.form-status.is-visible {
  display: block;
}

.form-status.is-success {
  color: var(--c-success);
}

.form-status.is-error {
  color: var(--c-danger);
}

.direct-panel {
  background: var(--c-graphite-soft);
  border: 1px solid var(--border-on-dark);
  border-radius: var(--r-md);
  padding: 40px 36px;
}

.direct-panel__row {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border-on-dark);
}

.direct-panel__row:last-of-type {
  border-bottom: none;
}

.direct-panel__row i {
  font-size: 18px;
  color: var(--c-accent);
  margin-top: 2px;
}

.direct-panel__row h4 {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  color: var(--c-fog-300);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.direct-panel__row p,
.direct-panel__row a {
  margin-top: 4px;
  font-size: 15.5px;
  color: var(--c-white);
}

.direct-panel__actions {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 28px;
}

.direct-panel__actions .btn-flow {
  width: 100%;
  justify-content: center;
}

.coverage-band {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.coverage-map {
  aspect-ratio: 16 / 10;
  border: 1px solid var(--border-on-dark);
  border-radius: var(--r-md);
  position: relative;
  overflow: hidden;
}

.coverage-map svg {
  width: 100%;
  height: 100%;
}

/* Accordion (FAQ) - custom skin over bootstrap accordion */
.faq-accordion .accordion-item {
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border-on-dark);
}

.faq-accordion .accordion-item:first-child {
  border-top: 1px solid var(--border-on-dark);
}

.faq-accordion .accordion-button {
  background: transparent;
  color: var(--c-white);
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  padding: 26px 4px;
  box-shadow: none;
}

.faq-accordion .accordion-button::after {
  filter: invert(1);
  width: 16px;
  height: 16px;
  background-size: 16px;
}

.faq-accordion .accordion-button:not(.collapsed) {
  color: var(--c-accent);
}

.faq-accordion .accordion-body {
  padding: 0 4px 28px;
  font-size: 15px;
  color: var(--c-fog-300);
  max-width: 720px;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--c-graphite-soft);
  border-top: 1px solid var(--border-on-dark);
  padding: 90px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
  gap: 50px;
  padding-bottom: 70px;
}

.footer-brand__logo {
  height: auto;
  width: 240px;
  max-width: 100%;
}

.footer-brand p {
  margin-top: 22px;
  max-width: 320px;
  font-size: 14.5px;
  color: var(--c-fog-300);
}

.footer-social {
  display: flex;
  gap: 12px;
  margin-top: 26px;
}

.footer-heading {
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-fog-300);
  margin-bottom: 22px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-links a {
  font-size: 14.5px;
  color: var(--c-fog-200);
  transition: color var(--dur-fast) var(--ease);
}

.footer-links a:hover {
  color: var(--c-accent);
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.footer-contact div {
  display: flex;
  gap: 12px;
  font-size: 14.5px;
  color: var(--c-fog-200);
}

.footer-contact i {
  color: var(--c-accent);
  margin-top: 3px;
}

.footer-bottom {
  border-top: 1px solid var(--border-on-dark);
  padding: 26px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--c-fog-300);
}

.footer-bottom a:hover {
  color: var(--c-accent);
}

/* ---------- Misc utilities ---------- */
.split-media {
  border-radius: var(--r-md);
  overflow: hidden;
}

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

.back-to-top {
  position: fixed;
  right: 28px;
  bottom: 28px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--c-accent);
  color: var(--c-white);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 900;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity var(--dur-base) var(--ease), transform var(--dur-base) var(--ease), visibility var(--dur-base);
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.media-note {
  font-size: 11px;
  color: var(--c-fog-300);
  opacity: 0.6;
}

/* ---------- Fixed WhatsApp button ---------- */
.whatsapp-fixed {
  position: fixed;
  left: 28px;
  bottom: 28px;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: #25d366;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  z-index: 950;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  transition: transform var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}

.whatsapp-fixed::before {
  content: "";
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 1px solid rgba(37, 211, 102, 0.5);
  animation: whatsappPulse 3.2s var(--ease) infinite;
}

@keyframes whatsappPulse {
  0% {
    transform: scale(0.92);
    opacity: 0.55;
  }
  100% {
    transform: scale(1.35);
    opacity: 0;
  }
}

.whatsapp-fixed:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
}

.whatsapp-fixed__tooltip {
  position: absolute;
  left: calc(100% + 14px);
  top: 50%;
  transform: translateY(-50%);
  background: var(--c-steel-800);
  color: var(--c-white);
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  padding: 8px 14px;
  border-radius: var(--r-sm);
  border: 1px solid var(--border-on-dark);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur-fast) var(--ease);
}

.whatsapp-fixed:hover .whatsapp-fixed__tooltip {
  opacity: 1;
  visibility: visible;
}