/* 1. CSS Variables */
:root {
  --color-brand: #314254;
  --color-dark: #1f2d3a;
  --color-dark-deep: #151f28;
  --color-ink: #17232e;
  --color-slate: #4b6073;
  --color-muted: #697b8c;
  --color-bg: #f5f7f9;
  --color-bg-soft: #eef2f5;
  --color-white: #ffffff;
  --color-border: #dce3e9;
  --color-accent: #39a9c8;
  --color-accent-light: #72c7de;
  --color-success: #1c7d5a;
  --color-error: #b42318;
  --container-width: 1200px;
  --section-spacing: clamp(4.75rem, 8vw, 8rem);
  --radius-sm: 0.5rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
  --shadow-subtle: 0 12px 35px rgb(31 45 58 / 0.08);
  --transition: 240ms ease;
  --header-height: 4.75rem;
}

/* 2. Reset */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 1.25rem);
}

body,
h1,
h2,
h3,
p,
figure,
blockquote,
dl,
dd {
  margin: 0;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

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

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

/* 3. Base */
body {
  min-width: 20rem;
  overflow-x: hidden;
  color: var(--color-ink);
  background: var(--color-white);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.7;
  text-rendering: optimizeLegibility;
}

body.menu-open {
  overflow: hidden;
}

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

address {
  font-style: normal;
}

::selection {
  color: var(--color-white);
  background: var(--color-accent);
}

:focus-visible {
  outline: 3px solid var(--color-accent-light);
  outline-offset: 4px;
}

.svg-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.skip-link {
  position: fixed;
  z-index: 2000;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.75rem 1rem;
  color: var(--color-white);
  background: var(--color-accent);
  border-radius: var(--radius-sm);
  font-weight: 700;
  transform: translateY(-150%);
  transition: transform var(--transition);
}

.skip-link:focus {
  transform: translateY(0);
}

/* 4. Typography */
h1,
h2,
h3 {
  color: inherit;
  font-weight: 650;
  line-height: 1.12;
  letter-spacing: -0.035em;
}

h1 {
  max-width: 16ch;
  font-size: clamp(2.55rem, 6vw, 4.9rem);
}

h2 {
  font-size: clamp(2.1rem, 5vw, 4.25rem);
}

h3 {
  font-size: clamp(1.2rem, 2.1vw, 1.55rem);
}

p {
  color: var(--color-muted);
}

.lead-copy {
  color: var(--color-slate);
  font-size: clamp(1.2rem, 2vw, 1.55rem);
  line-height: 1.55;
}

/* 5. Layout */
.container {
  width: min(calc(100% - 2rem), var(--container-width));
  margin-inline: auto;
}

.section {
  position: relative;
  padding-block: var(--section-spacing);
}

.section-heading {
  display: grid;
  gap: 1.5rem;
  margin-bottom: clamp(2.5rem, 5vw, 4.5rem);
}

.section-heading h2 {
  margin-top: 0.75rem;
}

.section-heading > p {
  max-width: 36rem;
  align-self: end;
  font-size: 1.05rem;
}

.section-label {
  display: flex;
  gap: 0.35rem;
  align-items: center;
  color: var(--color-slate);
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0.18em;
  line-height: 1;
  text-transform: uppercase;
}

.section-label::after {
  width: 3.5rem;
  height: 1px;
  margin-left: 0.65rem;
  background: var(--color-border);
  content: "";
}

.section-label span {
  color: var(--color-accent);
}

.section-label-light {
  color: rgb(255 255 255 / 0.55);
}

.section-label-light::after {
  background: rgb(255 255 255 / 0.15);
}

/* 6. Utilities */
.icon {
  width: 1.15rem;
  height: 1.15rem;
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

/* 7. Buttons */
.btn {
  display: inline-flex;
  min-height: 2.875rem;
  padding: 0.78rem 1.2rem;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.87rem;
  font-weight: 720;
  line-height: 1.2;
  text-align: center;
  transition: color var(--transition), background var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  color: var(--color-dark-deep);
  background: var(--color-white);
  box-shadow: 0 10px 30px rgb(0 0 0 / 0.16);
}

.btn-primary:hover {
  background: #edf9fc;
  box-shadow: 0 14px 32px rgb(0 0 0 / 0.24);
}

.btn-ghost {
  color: var(--color-white);
  border-color: rgb(255 255 255 / 0.3);
  background: rgb(255 255 255 / 0.04);
}

.btn-ghost:hover,
.btn-outline-light:hover {
  border-color: rgb(255 255 255 / 0.7);
  background: rgb(255 255 255 / 0.09);
}

.btn-outline-light {
  color: var(--color-white);
  border-color: rgb(255 255 255 / 0.25);
}

/* 8. Header */
.site-header {
  position: fixed;
  z-index: 1000;
  top: 0;
  right: 0;
  left: 0;
  height: var(--header-height);
  color: var(--color-white);
  background: rgb(21 31 40 / 0.55);
  border-bottom: 1px solid rgb(255 255 255 / 0.08);
  transition: height var(--transition), background var(--transition), box-shadow var(--transition), backdrop-filter var(--transition);
}

.site-header.is-scrolled {
  height: 4.25rem;
  background: rgb(21 31 40 / 0.95);
  box-shadow: 0 10px 30px rgb(0 0 0 / 0.14);
}

.header-inner {
  display: flex;
  height: 100%;
  align-items: center;
  justify-content: space-between;
}

.brand {
  position: relative;
  z-index: 1002;
  display: block;
  width: 7.7rem;
  height: 3.35rem;
}

.brand img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.menu-toggle {
  position: relative;
  z-index: 1002;
  display: grid;
  width: 2.875rem;
  height: 2.875rem;
  padding: 0.75rem;
  place-content: center;
  gap: 0.3rem;
  color: var(--color-white);
  background: transparent;
  border: 1px solid rgb(255 255 255 / 0.2);
  border-radius: var(--radius-sm);
}

.menu-toggle span {
  display: block;
  width: 1.25rem;
  height: 1px;
  background: currentColor;
  transition: transform var(--transition), opacity var(--transition);
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(0.36rem) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-0.36rem) rotate(-45deg);
}

.primary-nav {
  position: fixed;
  z-index: 1001;
  inset: 0;
  display: flex;
  padding: 7rem 2rem 2.5rem;
  flex-direction: column;
  align-items: stretch;
  justify-content: flex-start;
  gap: 2.25rem;
  overflow-y: auto;
  visibility: hidden;
  background: var(--color-dark-deep);
  opacity: 0;
  transform: translateY(-1.5rem);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
}

.primary-nav.is-open {
  visibility: visible;
  opacity: 1;
  transform: translateY(0);
}

.primary-nav ul {
  display: grid;
  gap: 0;
}

.primary-nav li {
  border-bottom: 1px solid rgb(255 255 255 / 0.1);
}

.primary-nav li:first-child {
  border-top: 1px solid rgb(255 255 255 / 0.1);
}

.primary-nav li a {
  display: block;
  padding: 0.9rem 0;
  font-size: clamp(1.45rem, 6vw, 2rem);
  font-weight: 620;
}

.btn-header {
  color: var(--color-dark-deep);
  background: var(--color-white);
}

/* 9. Hero */
.hero {
  position: relative;
  display: flex;
  min-height: max(48rem, 100svh);
  padding-top: calc(var(--header-height) + 3.75rem);
  align-items: center;
  overflow: hidden;
  color: var(--color-white);
  background:
    radial-gradient(circle at 80% 32%, rgb(57 169 200 / 0.12), transparent 30rem),
    linear-gradient(135deg, #17232e 0%, var(--color-dark-deep) 55%, #1d303d 100%);
}

.hero-grid,
.vision-grid,
.cta-grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgb(255 255 255 / 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgb(255 255 255 / 0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, black, transparent 90%);
}

.hero-scanline {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 9%;
  width: 1px;
  background: linear-gradient(to bottom, transparent, rgb(57 169 200 / 0.45), transparent);
}

.hero-layout {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 3rem;
  padding-bottom: 8rem;
}

.eyebrow {
  display: flex;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem;
  color: rgb(255 255 255 / 0.7);
  font-size: 0.68rem;
  font-weight: 720;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.eyebrow span {
  width: 1.75rem;
  height: 1px;
  background: var(--color-accent);
}

.eyebrow b {
  color: var(--color-accent-light);
}

.hero h1 {
  color: var(--color-white);
}

.hero-lead {
  max-width: 43rem;
  margin-top: 1.75rem;
  color: rgb(255 255 255 / 0.68);
  font-size: clamp(1.02rem, 2vw, 1.18rem);
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  margin-top: 2rem;
  flex-direction: column;
  gap: 0.75rem;
}

.hero-meta {
  display: flex;
  margin-top: 2.25rem;
  padding-top: 1.35rem;
  flex-wrap: wrap;
  gap: 1.5rem 2.5rem;
  border-top: 1px solid rgb(255 255 255 / 0.13);
}

.hero-meta span {
  color: var(--color-white);
  font-size: 0.9rem;
  font-weight: 650;
}

.hero-meta small {
  display: block;
  margin-bottom: 0.25rem;
  color: rgb(255 255 255 / 0.42);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.hero-visual {
  position: relative;
  width: min(100%, 34rem);
  margin-inline: auto;
  aspect-ratio: 1;
}

.hero-visual::before,
.hero-visual::after {
  position: absolute;
  width: 2.5rem;
  height: 2.5rem;
  border-color: rgb(91 192 219 / 0.55);
  content: "";
}

.hero-visual::before {
  top: 0;
  left: 0;
  border-top: 1px solid;
  border-left: 1px solid;
}

.hero-visual::after {
  right: 0;
  bottom: 0;
  border-right: 1px solid;
  border-bottom: 1px solid;
}

.hero-visual svg {
  width: 100%;
  height: 100%;
}

.diagram-orbit,
.diagram-axis,
.diagram-wave,
.diagram-pulse,
.diagram-center {
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.diagram-orbit {
  stroke: rgb(255 255 255 / 0.17);
  stroke-width: 1;
  stroke-dasharray: 7 10;
  transform-origin: center;
}

.orbit-one {
  animation: orbit 36s linear infinite;
}

.orbit-two {
  stroke: rgb(57 169 200 / 0.32);
  animation: orbit-reverse 28s linear infinite;
}

.orbit-three {
  stroke-dasharray: 2 8;
  animation: orbit 18s linear infinite;
}

.diagram-axis {
  stroke: rgb(255 255 255 / 0.09);
  stroke-width: 1;
}

.diagram-axis.minor {
  stroke-dasharray: 2 12;
}

.diagram-wave {
  stroke: url(#wave-gradient);
  stroke-width: 2.5;
}

.diagram-pulse {
  stroke: rgb(255 255 255 / 0.11);
  stroke-width: 1;
}

.diagram-nodes circle {
  fill: var(--color-accent);
  filter: drop-shadow(0 0 6px rgb(57 169 200 / 0.7));
}

.diagram-center circle,
.diagram-center path {
  stroke: rgb(255 255 255 / 0.72);
  stroke-width: 1.5;
}

.visual-coordinate {
  position: absolute;
  z-index: 2;
  color: rgb(255 255 255 / 0.37);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.56rem;
  letter-spacing: 0.12em;
}

.visual-coordinate-top {
  top: 0.6rem;
  right: 0.75rem;
}

.visual-coordinate-bottom {
  bottom: 0.75rem;
  left: 0.75rem;
}

.visual-readout {
  position: absolute;
  right: 1rem;
  bottom: 2.2rem;
  display: grid;
  grid-template-columns: repeat(5, 1.2rem);
  gap: 0.2rem;
  padding: 0.65rem 0.75rem;
  background: rgb(17 27 35 / 0.82);
  border: 1px solid rgb(255 255 255 / 0.11);
  backdrop-filter: blur(8px);
}

.visual-readout span,
.visual-readout strong {
  grid-column: 1 / -1;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.48rem;
  letter-spacing: 0.12em;
}

.visual-readout span {
  color: rgb(255 255 255 / 0.38);
}

.visual-readout strong {
  color: var(--color-accent-light);
}

.visual-readout i {
  height: 2px;
  background: var(--color-accent);
}

.visual-readout i:nth-of-type(2) { opacity: 0.75; }
.visual-readout i:nth-of-type(3) { opacity: 0.5; }
.visual-readout i:nth-of-type(4) { opacity: 0.3; }
.visual-readout i:nth-of-type(5) { opacity: 0.16; }

.hero-keywords {
  position: absolute;
  z-index: 2;
  right: 0;
  bottom: 0;
  left: 0;
  border-top: 1px solid rgb(255 255 255 / 0.09);
}

.hero-keywords .container {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
}

.hero-keywords span {
  padding: 0.9rem 0.5rem;
  color: rgb(255 255 255 / 0.38);
  border-right: 1px solid rgb(255 255 255 / 0.08);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.59rem;
  letter-spacing: 0.1em;
  text-align: center;
  text-transform: uppercase;
}

/* 10. About */
.about {
  background: var(--color-white);
}

.about-layout {
  display: grid;
  gap: 3rem;
  margin-top: 2rem;
}

.section-intro h2 {
  margin-bottom: 1.5rem;
}

.section-intro .lead-copy {
  max-width: 40rem;
  margin-bottom: 1.2rem;
}

.section-intro > p:last-child {
  max-width: 42rem;
}

.capability-panel {
  position: relative;
  padding: clamp(1.25rem, 4vw, 2.25rem);
  overflow: hidden;
  color: var(--color-white);
  background: var(--color-brand);
  border-radius: var(--radius-md);
}

.panel-head {
  display: flex;
  margin-bottom: 2.25rem;
  justify-content: space-between;
  color: rgb(255 255 255 / 0.46);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.6rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.capability-panel ol {
  position: relative;
  z-index: 1;
}

.capability-panel li {
  display: grid;
  padding: 1rem 0;
  grid-template-columns: 2.5rem 1fr;
  gap: 0.75rem;
  align-items: center;
  border-bottom: 1px solid rgb(255 255 255 / 0.1);
  font-size: clamp(1rem, 2.2vw, 1.2rem);
}

.capability-panel li span {
  color: var(--color-accent-light);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.65rem;
}

.panel-diagram {
  position: absolute;
  right: -5rem;
  bottom: -5rem;
  width: 14rem;
  height: 14rem;
  border: 1px solid rgb(255 255 255 / 0.08);
  border-radius: 50%;
}

.panel-diagram span {
  position: absolute;
  inset: 20%;
  border: 1px solid rgb(255 255 255 / 0.07);
  border-radius: 50%;
}

.panel-diagram span:nth-child(2) { inset: 38%; }
.panel-diagram span:nth-child(3) { top: 50%; right: 0; bottom: auto; left: 0; border-radius: 0; }
.panel-diagram span:nth-child(4) { top: 0; right: auto; bottom: 0; left: 50%; border-radius: 0; }

/* 11. Capabilities */
.capabilities {
  background: var(--color-bg);
}

.capability-grid {
  display: grid;
  gap: 1rem;
}

.capability-card {
  padding: clamp(1.3rem, 3vw, 2rem);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.capability-card:hover {
  border-color: #b9c9d4;
  box-shadow: var(--shadow-subtle);
  transform: translateY(-4px);
}

.card-top {
  display: flex;
  margin-bottom: 2.25rem;
  align-items: center;
  justify-content: space-between;
}

.card-number {
  color: var(--color-muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.67rem;
}

.card-icon,
.service-icon,
.contact-icon {
  width: 2.65rem;
  height: 2.65rem;
  padding: 0.65rem;
  color: var(--color-brand);
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.3;
  background: var(--color-bg-soft);
  border-radius: var(--radius-sm);
}

.capability-card h3 {
  max-width: 16ch;
  margin-bottom: 1rem;
}

.capability-card p {
  font-size: 0.94rem;
}

/* 12. Vision & Mission */
.vision {
  overflow: hidden;
  color: var(--color-white);
  background: var(--color-dark-deep);
}

.vision::after {
  position: absolute;
  top: -12rem;
  right: -10rem;
  width: 30rem;
  height: 30rem;
  border: 1px solid rgb(57 169 200 / 0.12);
  border-radius: 50%;
  box-shadow: 0 0 0 5rem rgb(57 169 200 / 0.025), 0 0 0 10rem rgb(57 169 200 / 0.018);
  content: "";
}

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

.vision-layout {
  display: grid;
  gap: clamp(3.5rem, 8vw, 6rem);
  margin-top: 2.5rem;
}

.vision-kicker {
  margin-bottom: 1rem;
  color: var(--color-accent-light);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.vision-statement h2 {
  color: var(--color-white);
  font-size: clamp(2rem, 4.5vw, 4rem);
  line-height: 1.22;
}

.mission-list {
  border-top: 1px solid rgb(255 255 255 / 0.13);
}

.mission-item {
  display: grid;
  padding: 1.45rem 0;
  grid-template-columns: 2.5rem 1fr;
  gap: 0.75rem;
  border-bottom: 1px solid rgb(255 255 255 / 0.13);
}

.mission-item > span {
  padding-top: 0.2rem;
  color: var(--color-accent-light);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.65rem;
}

.mission-item h3 {
  margin-bottom: 0.5rem;
  color: var(--color-white);
  font-size: 1.15rem;
  letter-spacing: -0.015em;
}

.mission-item p {
  color: rgb(255 255 255 / 0.58);
  font-size: 0.91rem;
}

/* 13. Services */
.services {
  background: var(--color-white);
}

.service-categories {
  display: grid;
  gap: 1rem;
}

.service-category {
  position: relative;
  padding: clamp(1.35rem, 3.5vw, 2.35rem);
  overflow: hidden;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.service-category-featured {
  color: var(--color-white);
  background: var(--color-brand);
  border-color: var(--color-brand);
}

.service-category-head {
  display: flex;
  margin-bottom: 2rem;
  align-items: center;
  justify-content: space-between;
}

.service-category-head span {
  color: var(--color-muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.57rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.service-category-featured .service-category-head span {
  color: rgb(255 255 255 / 0.45);
}

.service-category-featured .service-icon {
  color: var(--color-white);
  background: rgb(255 255 255 / 0.09);
}

.service-category h3 {
  margin-bottom: 1.5rem;
}

.service-category-featured h3 {
  color: var(--color-white);
}

.service-category li {
  display: flex;
  padding: 0.85rem 0;
  align-items: flex-start;
  gap: 0.75rem;
  color: var(--color-slate);
  border-top: 1px solid var(--color-border);
  font-size: 0.92rem;
}

.service-category-featured li {
  color: rgb(255 255 255 / 0.78);
  border-color: rgb(255 255 255 / 0.11);
}

.service-category li .icon {
  margin-top: 0.25rem;
  color: var(--color-accent);
}

.service-line {
  position: absolute;
  right: -3rem;
  bottom: -2.5rem;
  width: 12rem;
  height: 8rem;
  border-top: 1px solid rgb(255 255 255 / 0.08);
  border-left: 1px solid rgb(255 255 255 / 0.08);
  transform: skewX(-30deg);
}

/* 14. Why Rekindo */
.approach {
  background: var(--color-bg-soft);
}

.approach-layout {
  display: grid;
  gap: 3.5rem;
}

.approach-index {
  margin-bottom: 1rem;
  color: var(--color-accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.15em;
}

.approach-intro h2 {
  margin-bottom: 1.25rem;
}

.approach-intro > p:not(.approach-index) {
  max-width: 32rem;
}

.approach-axis {
  position: relative;
  display: flex;
  height: 5rem;
  margin-top: 2.25rem;
  align-items: center;
  justify-content: space-between;
}

.approach-axis::before {
  position: absolute;
  right: 0;
  left: 0;
  height: 1px;
  background: var(--color-border);
  content: "";
}

.approach-axis span {
  position: relative;
  width: 0.7rem;
  height: 0.7rem;
  background: var(--color-white);
  border: 2px solid var(--color-accent);
  border-radius: 50%;
}

.approach-list {
  border-top: 1px solid #cbd6df;
}

.approach-item {
  display: grid;
  padding: 1.5rem 0;
  grid-template-columns: 2.5rem 1fr;
  gap: 0.75rem;
  border-bottom: 1px solid #cbd6df;
}

.approach-item > span {
  color: var(--color-accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.65rem;
}

.approach-item h3 {
  margin-bottom: 0.45rem;
  font-size: 1.15rem;
}

.approach-item p {
  font-size: 0.91rem;
}

/* 15. Projects */
.projects {
  background: var(--color-white);
}

.timeline {
  display: grid;
  gap: 4.5rem;
}

.timeline-year {
  display: grid;
  gap: 1.75rem;
}

.year-marker {
  display: flex;
  padding-bottom: 1rem;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 2px solid var(--color-dark);
}

.year-marker span {
  font-size: clamp(2.25rem, 7vw, 4rem);
  font-weight: 650;
  letter-spacing: -0.06em;
  line-height: 1;
}

.year-marker small {
  max-width: 12rem;
  color: var(--color-muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.56rem;
  letter-spacing: 0.1em;
  text-align: right;
  text-transform: uppercase;
}

.year-projects {
  display: grid;
  gap: 1rem;
}

.project-card {
  position: relative;
  padding: clamp(1.3rem, 3vw, 2rem);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

.project-card::before {
  position: absolute;
  top: 0;
  left: 1.25rem;
  width: 2.5rem;
  height: 2px;
  background: var(--color-accent);
  content: "";
}

.project-index {
  margin-bottom: 1.75rem;
  color: var(--color-muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.58rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.project-category {
  margin-bottom: 0.65rem;
  color: var(--color-accent);
  font-size: 0.65rem;
  font-weight: 750;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.project-card h3 {
  margin-bottom: 0.9rem;
}

.project-card > p:last-of-type {
  font-size: 0.92rem;
}

.project-card dl {
  display: grid;
  margin-top: 1.5rem;
  gap: 0.5rem;
}

.project-card dl div {
  display: grid;
  padding-top: 0.5rem;
  grid-template-columns: 4.5rem 1fr;
  gap: 0.75rem;
  border-top: 1px solid var(--color-border);
  font-size: 0.77rem;
}

.project-card dt {
  color: var(--color-muted);
}

.project-card dd {
  color: var(--color-slate);
  font-weight: 650;
}

.project-gallery {
  display: grid;
  margin-top: clamp(5rem, 10vw, 8rem);
  gap: 1rem;
}

.gallery-heading {
  padding-block: 1.5rem;
  align-self: end;
}

.gallery-heading p {
  margin-bottom: 0.6rem;
  color: var(--color-accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.gallery-heading h3 {
  font-size: clamp(1.65rem, 3vw, 2.35rem);
}

.gallery-item {
  position: relative;
  min-height: 17rem;
  overflow: hidden;
  background: var(--color-bg-soft);
  border-radius: var(--radius-sm);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  min-height: 17rem;
  object-fit: cover;
  transition: transform 600ms ease;
}

.gallery-item:hover img {
  transform: scale(1.025);
}

.gallery-item figcaption {
  position: absolute;
  right: 0.75rem;
  bottom: 0.75rem;
  left: 0.75rem;
  display: flex;
  padding: 0.75rem 0.9rem;
  align-items: center;
  gap: 0.75rem;
  color: var(--color-white);
  background: rgb(21 31 40 / 0.8);
  border: 1px solid rgb(255 255 255 / 0.13);
  border-radius: 0.35rem;
  font-size: 0.75rem;
  line-height: 1.35;
  backdrop-filter: blur(9px);
}

.gallery-item figcaption span {
  color: var(--color-accent-light);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

/* 16. CTA */
.engineering-cta {
  position: relative;
  padding-block: clamp(4rem, 7vw, 6.5rem);
  overflow: hidden;
  color: var(--color-white);
  background: var(--color-brand);
}

.engineering-cta::after {
  position: absolute;
  top: 50%;
  right: -9rem;
  width: 24rem;
  height: 24rem;
  border: 1px solid rgb(255 255 255 / 0.08);
  border-radius: 50%;
  content: "";
  transform: translateY(-50%);
}

.cta-grid {
  opacity: 0.55;
  mask-image: linear-gradient(90deg, black, transparent 80%);
}

.cta-layout {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 2rem;
}

.cta-kicker {
  margin-bottom: 1rem;
  color: var(--color-accent-light);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.engineering-cta h2 {
  max-width: 16ch;
  color: var(--color-white);
}

.engineering-cta h2 + p {
  max-width: 43rem;
  margin-top: 1.15rem;
  color: rgb(255 255 255 / 0.63);
}

.cta-actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* 17. Contact */
.contact {
  background: var(--color-white);
}

.contact-layout {
  display: grid;
  gap: 3.25rem;
  margin-top: 2rem;
}

.contact-details h2 {
  margin-bottom: 1.25rem;
}

.contact-lead {
  max-width: 38rem;
  font-size: 1.04rem;
}

.contact-details address {
  display: grid;
  margin-top: 2.5rem;
  gap: 1rem;
}

.contact-item {
  display: grid;
  padding: 1.15rem 0;
  grid-template-columns: 3rem 1fr;
  gap: 1rem;
  border-top: 1px solid var(--color-border);
}

.contact-icon {
  width: 2.65rem;
  height: 2.65rem;
}

.contact-item span {
  display: block;
  margin-bottom: 0.3rem;
  color: var(--color-muted);
  font-size: 0.63rem;
  font-weight: 720;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.contact-item strong {
  display: block;
  margin-bottom: 0.25rem;
  color: var(--color-ink);
  font-size: 0.95rem;
}

.contact-item p {
  font-size: 0.91rem;
}

.contact-item a {
  display: flex;
  width: fit-content;
  margin-top: 0.3rem;
  align-items: center;
  gap: 0.4rem;
  color: var(--color-brand);
  font-size: 0.9rem;
  font-weight: 680;
  overflow-wrap: anywhere;
}

.contact-item a:hover {
  color: var(--color-accent);
}

.inquiry-panel {
  padding: clamp(1.35rem, 4vw, 2.5rem);
  color: var(--color-white);
  background: var(--color-dark-deep);
  border-radius: var(--radius-md);
  box-shadow: 0 18px 48px rgb(21 31 40 / 0.16);
}

.inquiry-head {
  display: flex;
  margin-bottom: 1.25rem;
  justify-content: space-between;
  gap: 1rem;
  color: rgb(255 255 255 / 0.4);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.57rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.inquiry-head p {
  color: var(--color-accent-light);
}

.inquiry-panel h3 {
  margin-bottom: 0.65rem;
  color: var(--color-white);
  font-size: clamp(1.55rem, 3vw, 2.1rem);
}

.inquiry-panel > p {
  color: rgb(255 255 255 / 0.52);
  font-size: 0.86rem;
}

.inquiry-panel form {
  display: grid;
  margin-top: 1.75rem;
  gap: 1rem;
}

.form-row {
  display: grid;
  gap: 1rem;
}

.form-field {
  display: grid;
  gap: 0.4rem;
}

.form-field label {
  color: rgb(255 255 255 / 0.77);
  font-size: 0.78rem;
  font-weight: 650;
}

.form-field label span {
  color: var(--color-accent-light);
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  min-height: 3rem;
  padding: 0.75rem 0.85rem;
  color: var(--color-white);
  background: rgb(255 255 255 / 0.055);
  border: 1px solid rgb(255 255 255 / 0.15);
  border-radius: 0.4rem;
  outline: none;
  transition: border-color var(--transition), background var(--transition), box-shadow var(--transition);
}

.form-field textarea {
  min-height: 7rem;
  resize: vertical;
}

.form-field select {
  color-scheme: dark;
}

.form-field input::placeholder,
.form-field textarea::placeholder {
  color: rgb(255 255 255 / 0.35);
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  background: rgb(255 255 255 / 0.08);
  border-color: var(--color-accent-light);
  box-shadow: 0 0 0 3px rgb(57 169 200 / 0.17);
}

.form-field [aria-invalid="true"] {
  border-color: #ff9c92;
}

.field-error {
  min-height: 1em;
  color: #ffb4ad;
  font-size: 0.7rem;
  line-height: 1.35;
}

.form-status {
  min-height: 1.35rem;
  color: #ffb4ad;
  font-size: 0.76rem;
}

.btn-form {
  width: 100%;
  margin-top: 0.25rem;
  color: var(--color-dark-deep);
  background: var(--color-white);
}

.btn-form .icon-arrow {
  margin-left: auto;
}

/* 18. Footer */
.site-footer {
  color: var(--color-white);
  background: #101820;
}

.footer-main {
  display: grid;
  padding-block: 4rem 3rem;
  gap: 2.5rem;
}

.footer-brand img {
  width: 10.5rem;
  height: 5.5rem;
  margin-bottom: 1rem;
  object-fit: contain;
  object-position: left center;
}

.footer-brand p {
  max-width: 29rem;
  color: rgb(255 255 255 / 0.48);
  font-size: 0.86rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.45rem;
}

.footer-links a {
  color: rgb(255 255 255 / 0.72);
  font-size: 0.86rem;
}

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

.footer-bottom {
  display: flex;
  padding-block: 1.25rem;
  flex-direction: column;
  gap: 0.35rem;
  border-top: 1px solid rgb(255 255 255 / 0.08);
}

.footer-bottom p {
  color: rgb(255 255 255 / 0.34);
  font-size: 0.7rem;
}

/* 19. Floating WhatsApp */
.floating-whatsapp {
  position: fixed;
  z-index: 900;
  right: 1rem;
  bottom: 1rem;
  display: flex;
  min-width: 3.25rem;
  height: 3.25rem;
  padding: 0 0.9rem;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  visibility: hidden;
  color: var(--color-white);
  background: #167e5b;
  border: 1px solid rgb(255 255 255 / 0.25);
  border-radius: 999px;
  box-shadow: 0 10px 25px rgb(0 0 0 / 0.2);
  opacity: 0;
  transform: translateY(1rem);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition), background var(--transition);
}

.floating-whatsapp.is-visible {
  visibility: visible;
  opacity: 1;
  transform: translateY(0);
}

.floating-whatsapp:hover {
  background: #106948;
}

.floating-whatsapp svg {
  width: 1.4rem;
  height: 1.4rem;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.6;
}

.floating-whatsapp span {
  display: none;
  font-size: 0.75rem;
  font-weight: 700;
}

/* 20. Animations */
.js .reveal {
  opacity: 0;
  transform: translateY(1.25rem);
  transition: opacity 520ms ease, transform 520ms ease;
}

.js .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes orbit {
  to { transform: rotate(360deg); }
}

@keyframes orbit-reverse {
  to { transform: rotate(-360deg); }
}

/* 21. Responsive Media Queries */
@media (min-width: 36rem) {
  .container {
    width: min(calc(100% - 3rem), var(--container-width));
  }

  .hero-actions,
  .cta-actions {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .hero-keywords .container {
    grid-template-columns: repeat(4, 1fr);
  }

  .capability-grid,
  .year-projects,
  .form-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .service-categories {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .service-category:last-child {
    grid-column: 1 / -1;
  }

  .project-gallery {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-auto-rows: 17rem;
  }

  .gallery-heading {
    grid-column: 1;
  }

  .gallery-item,
  .gallery-item img {
    min-height: 100%;
  }

  .gallery-item-wide {
    grid-column: 1 / -1;
  }

  .floating-whatsapp span {
    display: inline;
  }
}

@media (min-width: 48rem) {
  .section-heading {
    grid-template-columns: minmax(0, 1.25fr) minmax(17rem, 0.75fr);
    align-items: end;
  }

  .about-layout {
    grid-template-columns: minmax(0, 1.05fr) minmax(20rem, 0.75fr);
    align-items: start;
  }

  .capability-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .vision-layout {
    grid-template-columns: minmax(0, 1.15fr) minmax(20rem, 0.85fr);
    align-items: start;
  }

  .service-categories {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .service-category-featured {
    grid-row: span 2;
  }

  .service-category:last-child {
    grid-column: auto;
  }

  .approach-layout {
    grid-template-columns: minmax(0, 0.8fr) minmax(24rem, 1.2fr);
    align-items: start;
  }

  .approach-intro {
    position: sticky;
    top: calc(var(--header-height) + 2rem);
  }

  .timeline-year {
    grid-template-columns: minmax(9rem, 0.28fr) minmax(0, 1fr);
    gap: 2.5rem;
  }

  .year-marker {
    position: sticky;
    top: calc(var(--header-height) + 2rem);
    display: block;
    height: fit-content;
    padding: 0 0 1.25rem;
    border-bottom-width: 1px;
  }

  .year-marker span,
  .year-marker small {
    display: block;
    text-align: left;
  }

  .year-marker small {
    margin-top: 0.8rem;
  }

  .project-gallery {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    grid-auto-rows: 18rem;
  }

  .gallery-heading {
    grid-column: 1;
  }

  .gallery-item-wide {
    grid-column: span 2;
  }

  .cta-layout {
    grid-template-columns: minmax(0, 1.2fr) minmax(18rem, 0.8fr);
    align-items: end;
  }

  .cta-actions {
    justify-content: flex-end;
  }

  .contact-layout {
    grid-template-columns: minmax(0, 0.88fr) minmax(25rem, 1.12fr);
    align-items: start;
  }

  .footer-main {
    grid-template-columns: minmax(0, 1.8fr) minmax(9rem, 0.6fr);
  }

  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

@media (min-width: 60rem) {
  .site-header.is-scrolled {
    backdrop-filter: blur(14px);
  }

  .menu-toggle {
    display: none;
  }

  .primary-nav {
    position: static;
    display: flex;
    padding: 0;
    flex-direction: row;
    align-items: center;
    justify-content: flex-end;
    gap: 2rem;
    visibility: visible;
    background: transparent;
    opacity: 1;
    transform: none;
  }

  .primary-nav ul {
    display: flex;
    align-items: center;
    gap: 1.65rem;
  }

  .primary-nav li,
  .primary-nav li:first-child {
    border: 0;
  }

  .primary-nav li a {
    position: relative;
    padding: 0.5rem 0;
    color: rgb(255 255 255 / 0.68);
    font-size: 0.78rem;
    font-weight: 620;
  }

  .primary-nav li a::after {
    position: absolute;
    right: 0;
    bottom: 0;
    left: 0;
    height: 1px;
    background: var(--color-accent-light);
    content: "";
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--transition);
  }

  .primary-nav li a:hover {
    color: var(--color-white);
  }

  .primary-nav li a:hover::after {
    transform: scaleX(1);
    transform-origin: left;
  }

  .btn-header {
    min-height: 2.5rem;
    padding: 0.65rem 1rem;
    font-size: 0.76rem;
  }

  .hero {
    min-height: 52rem;
    padding-top: calc(var(--header-height) + 3rem);
  }

  .hero-layout {
    grid-template-columns: minmax(0, 1.08fr) minmax(26rem, 0.92fr);
    align-items: center;
    gap: 3rem;
  }

  .hero-content {
    padding-block: 2rem;
  }

  .hero-visual {
    width: min(100%, 35rem);
  }

  .capability-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .service-categories {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: stretch;
  }

  .service-category-featured {
    grid-row: auto;
  }

  .project-gallery {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .gallery-heading {
    grid-column: 1;
  }

  .gallery-item-wide {
    grid-column: span 2;
  }
}

@media (min-width: 75rem) {
  .container {
    width: min(calc(100% - 5rem), var(--container-width));
  }

  .hero-layout {
    gap: 5rem;
  }

  .brand {
    width: 8.5rem;
  }
}

@media (max-width: 23rem) {
  .container {
    width: min(calc(100% - 1.25rem), var(--container-width));
  }

  .hero-actions .btn,
  .cta-actions .btn {
    width: 100%;
  }

  .hero-meta {
    gap: 1rem;
  }

  .project-card dl div {
    grid-template-columns: 1fr;
    gap: 0.1rem;
  }
}

/* Graceful fallback when JavaScript is unavailable. */
html:not(.js) .site-header {
  position: relative;
  height: auto;
  background: var(--color-dark-deep);
}

html:not(.js) .header-inner {
  padding-block: 0.75rem;
  flex-wrap: wrap;
}

html:not(.js) .menu-toggle {
  display: none;
}

html:not(.js) .primary-nav {
  position: static;
  display: grid;
  width: 100%;
  padding: 0.75rem 0 0;
  visibility: visible;
  background: transparent;
  opacity: 1;
  transform: none;
}

html:not(.js) .primary-nav ul {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

html:not(.js) .primary-nav li a {
  padding: 0.6rem 0;
  font-size: 0.85rem;
}

html:not(.js) .hero {
  padding-top: 4rem;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .js .reveal {
    opacity: 1;
    transform: none;
  }
}