/* ==========================================================================
   Surya Prakash Techsol — Stylesheet
   Organized: Custom Properties > Reset > Base > Layout > Components > Pages > Utilities > Media Queries
   ========================================================================== */

/* ---------- Custom Properties ---------- */
:root {
  /* Color system — sampled from the Surya Prakash Techsol logo (navy + solar orange) */
  --bg: #FAFAFA;
  --bg-alt: #F1F4F8;
  --surface: #FFFFFF;
  --text: #142033;
  --text-muted: #56607A;
  --primary: #1B4A7C;
  --primary-dark: #123A63;
  --primary-light: #E7EEF6;
  --accent: #D8430A;
  --border: #E2E7EE;
  --dark-bg: #0F2038;
  --dark-text: #F1F4F8;
  --dark-text-muted: #A9B7CC;

  /* Typography */
  --font-heading: 'Sora', 'Segoe UI', sans-serif;
  --font-body: 'IBM Plex Sans', 'Segoe UI', sans-serif;

  /* Spacing scale */
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 3rem;
  --space-6: 4rem;
  --space-7: 6rem;

  /* Radii & shadows */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-pill: 999px;
  --shadow-sm: 0 1px 2px rgba(20, 32, 51, 0.06);
  --shadow-md: 0 8px 24px rgba(20, 32, 51, 0.08);
  --shadow-lg: 0 16px 40px rgba(20, 32, 51, 0.12);

  /* Layout */
  --container-width: 1200px;
  --header-height: 76px;

  /* Motion */
  --transition-fast: 150ms ease;
  --transition-base: 240ms ease;
}

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

* {
  margin: 0;
}

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

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

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

button {
  cursor: pointer;
}

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

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

/* ---------- Base ---------- */
body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text);
  background-color: var(--bg);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text);
  line-height: 1.2;
  font-weight: 700;
}

h1 { font-size: clamp(2.25rem, 4.5vw, 3.5rem); font-weight: 800; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.75rem, 3vw, 2.5rem); font-weight: 700; letter-spacing: -0.01em; }
h3 { font-size: 1.25rem; font-weight: 600; }
h4 { font-size: 1.1rem; font-weight: 600; }

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

/* Visible focus states for accessibility */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--primary);
  color: #fff;
  padding: 0.75rem 1.25rem;
  z-index: 200;
  border-radius: 0 0 var(--radius-sm) 0;
}

.skip-link:focus {
  left: 0;
}

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: var(--space-3);
}

.section {
  padding-block: var(--space-7);
}

.section--alt {
  background-color: var(--bg-alt);
}

.section-header {
  max-width: 640px;
  margin-bottom: var(--space-5);
}

.section-header.center {
  margin-inline: auto;
  text-align: center;
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--primary);
  text-transform: uppercase;
  margin-bottom: var(--space-2);
  position: relative;
  padding-left: 1.4rem;
}

.eyebrow::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 1rem;
  height: 2px;
  background: var(--accent);
}

.section-header p {
  margin-top: var(--space-2);
  font-size: 1.05rem;
}

mark.accent {
  background: none;
  color: var(--accent);
  font-style: normal;
}

/* Hexagon / molecular line-art background motif */
.hex-pattern {
  background-color: var(--bg);
  background-image:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='84' height='96' viewBox='0 0 84 96'%3E%3Cg fill='none' stroke='%231B4A7C' stroke-opacity='0.12' stroke-width='1.2'%3E%3Cpath d='M42 0 L84 24 L84 72 L42 96 L0 72 L0 24 Z'/%3E%3Ccircle cx='42' cy='0' r='2'/%3E%3Ccircle cx='84' cy='24' r='2'/%3E%3Ccircle cx='84' cy='72' r='2'/%3E%3Ccircle cx='42' cy='96' r='2'/%3E%3Ccircle cx='0' cy='72' r='2'/%3E%3Ccircle cx='0' cy='24' r='2'/%3E%3C/g%3E%3C/svg%3E");
  background-size: 84px 96px;
}

.hex-pattern--dark {
  background-color: var(--dark-bg);
  background-image:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='84' height='96' viewBox='0 0 84 96'%3E%3Cg fill='none' stroke='%23F1F4F8' stroke-opacity='0.08' stroke-width='1.2'%3E%3Cpath d='M42 0 L84 24 L84 72 L42 96 L0 72 L0 24 Z'/%3E%3Ccircle cx='42' cy='0' r='2'/%3E%3Ccircle cx='84' cy='24' r='2'/%3E%3Ccircle cx='84' cy='72' r='2'/%3E%3Ccircle cx='42' cy='96' r='2'/%3E%3Ccircle cx='0' cy='72' r='2'/%3E%3Ccircle cx='0' cy='24' r='2'/%3E%3C/g%3E%3C/svg%3E");
  background-size: 84px 96px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius-pill);
  border: 2px solid transparent;
  transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
  white-space: nowrap;
}

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

.btn-primary:hover {
  background-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
}

.btn-on-dark {
  background-color: var(--accent);
  color: #fff;
}

.btn-on-dark:hover {
  background-color: #B23606;
  transform: translateY(-2px);
}

.btn-block {
  width: 100%;
}

.btn-sm {
  padding: 0.6rem 1.25rem;
  font-size: 0.85rem;
}

/* ---------- Badge / Pill ---------- */
.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary-dark);
  background-color: var(--primary-light);
  padding: 0.45rem 1rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(27, 74, 124, 0.15);
}

.badge-pill .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(27, 74, 124, 0.18);
}

.tag {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--primary-dark);
  background: var(--primary-light);
  border-radius: var(--radius-pill);
  padding: 0.3rem 0.85rem;
  letter-spacing: 0.03em;
}

.tag--accent {
  color: #B23606;
  background: #FDE7DC;
}

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border);
}

/* Blur lives on a pseudo-element (not .site-header itself) so the header
   never becomes a containing block for position:fixed descendants —
   otherwise .main-nav's mobile inset resolves against the header's own
   ~76px box instead of the viewport. */
.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-color: rgba(250, 250, 249, 0.92);
  backdrop-filter: blur(8px);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-height);
  gap: var(--space-3);
}

.logo {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.logo img {
  height: 36px;
  width: auto;
}

.logo .logo-primary {
  color: var(--primary);
}

.logo .logo-accent {
  color: var(--accent);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-5);
}

.nav-links {
  display: flex;
  gap: var(--space-4);
  align-items: center;
}

.nav-links a {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-muted);
  padding: 0.5rem 0;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width var(--transition-fast);
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--text);
}

.nav-links a:hover::after,
.nav-links a[aria-current="page"]::after {
  width: 100%;
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--text);
  margin-inline: auto;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- Hero ---------- */
.hero {
  padding-block: var(--space-7) var(--space-6);
  text-align: center;
}

.hero-inner {
  max-width: 780px;
  margin-inline: auto;
}

.hero h1 {
  margin-block: var(--space-3);
}

.hero-sub {
  font-size: 1.15rem;
  max-width: 640px;
  margin-inline: auto;
  margin-bottom: var(--space-4);
}

.hero-actions {
  display: flex;
  gap: var(--space-2);
  justify-content: center;
  flex-wrap: wrap;
}

/* Page header (interior pages) */
.page-header {
  padding-block: var(--space-6) var(--space-5);
  text-align: center;
}

.page-header .section-header {
  max-width: 720px;
}

/* ---------- Stats bar ---------- */
.stats-bar {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
  padding-block: var(--space-5);
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 800;
  color: var(--primary);
  display: block;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ---------- Cards / Grids ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(27, 74, 124, 0.25);
}

.icon-chip {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-sm);
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-3);
  flex-shrink: 0;
}

.icon-chip svg {
  width: 28px;
  height: 28px;
  stroke: var(--primary);
}

.card h3 {
  margin-bottom: var(--space-1);
}

.card p {
  font-size: 0.95rem;
  margin-bottom: var(--space-2);
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: var(--space-2);
  margin-top: auto;
}

.card-link {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  margin-top: var(--space-1);
  transition: gap var(--transition-fast);
}

.card-link:hover {
  gap: 0.55rem;
  color: var(--primary-dark);
}

/* Expanded detail card (services / industries pages) */
.detail-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: var(--space-4);
  scroll-margin-top: calc(var(--header-height) + 16px);
}

.detail-card + .detail-card {
  margin-top: var(--space-3);
}

.detail-card .icon-chip {
  width: 72px;
  height: 72px;
  margin-bottom: 0;
}

.detail-card .icon-chip svg {
  width: 36px;
  height: 36px;
}

.detail-card ul {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem 1.5rem;
  margin-top: var(--space-2);
}

.detail-card li {
  font-size: 0.95rem;
  color: var(--text-muted);
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}

.detail-card li::before {
  content: "";
  flex-shrink: 0;
  width: 8px;
  height: 8px;
  margin-top: 0.45rem;
  border-radius: 2px;
  background: var(--accent);
}

/* ---------- Process steps ---------- */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
  counter-reset: step;
}

.process-step {
  position: relative;
  padding: var(--space-4) var(--space-3);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.process-step .step-number {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 2rem;
  color: var(--primary-light);
  -webkit-text-stroke: 1.5px var(--primary);
  margin-bottom: var(--space-2);
  display: block;
}

.process-step h3 {
  margin-bottom: var(--space-1);
}

.process-step p {
  font-size: 0.92rem;
}

.metrics-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
  margin-top: var(--space-5);
  text-align: center;
}

.metrics-row .stat-number {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
}

/* ---------- Tech stack ---------- */
.stack-groups {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

.stack-group {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
}

.stack-group h3 {
  color: var(--primary);
  margin-bottom: var(--space-2);
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.pill-list li {
  font-size: 0.88rem;
  font-weight: 500;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-pill);
  color: var(--text);
}

/* ---------- Case studies ---------- */
.case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
}

.case-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.case-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.case-card-tags {
  display: flex;
  gap: 0.5rem;
  margin-bottom: var(--space-2);
  flex-wrap: wrap;
}

.case-card h3 {
  margin-bottom: 0.2rem;
}

.case-org {
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: var(--space-2);
}

.case-card p.case-desc {
  font-size: 0.95rem;
  margin-bottom: var(--space-3);
}

.case-card .feature-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: var(--space-3);
}

.case-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2);
  border-top: 1px solid var(--border);
  padding-top: var(--space-3);
  margin-top: auto;
}

.case-metric-number {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.4rem;
  color: var(--primary);
  display: block;
}

.case-metric-label {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.status-tag {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-pill);
  background: var(--primary);
  color: #fff;
}

/* ---------- FAQ Accordion ---------- */
.faq-list {
  max-width: 800px;
  margin-inline: auto;
}

.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  background: transparent;
  border: none;
  text-align: left;
  padding: var(--space-3) 0.25rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--text);
}

.faq-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  transition: transform var(--transition-base);
}

.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  background: var(--primary);
  border-radius: 2px;
}

.faq-icon::before {
  width: 12px;
  height: 2px;
}

.faq-icon::after {
  width: 2px;
  height: 12px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.faq-question[aria-expanded="true"] .faq-icon::after {
  transform: rotate(90deg);
  opacity: 0;
}

.faq-answer {
  overflow: hidden;
  max-height: 0;
  transition: max-height var(--transition-base) ease;
}

.faq-answer p {
  padding: 0 0.25rem var(--space-3);
  font-size: 0.98rem;
}

/* ---------- CTA band (dark bookend) ---------- */
.cta-band {
  background-color: var(--dark-bg);
  color: var(--dark-text);
  text-align: center;
  padding-block: var(--space-6);
}

.cta-band h2 {
  color: #fff;
  margin-bottom: var(--space-2);
}

.cta-band p {
  color: var(--dark-text-muted);
  max-width: 560px;
  margin-inline: auto;
  margin-bottom: var(--space-4);
  font-size: 1.05rem;
}

.cta-band .hero-actions {
  margin-bottom: var(--space-2);
}

.cta-band .cta-email {
  color: var(--dark-text-muted);
  font-size: 0.95rem;
}

.cta-band .cta-email a {
  color: #fff;
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- Footer ---------- */
.site-footer {
  background-color: var(--dark-bg);
  color: var(--dark-text-muted);
  padding-block: var(--space-6) var(--space-3);
}

.footer-top {
  padding-bottom: var(--space-5);
  border-bottom: 1px solid rgba(241, 244, 248, 0.12);
  margin-bottom: var(--space-5);
}

.footer-brand .logo .logo-primary {
  color: #fff;
}

.footer-brand p {
  color: var(--dark-text-muted);
  font-size: 0.95rem;
  margin-top: var(--space-2);
  max-width: 520px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1.3fr;
  gap: var(--space-4);
  padding-bottom: var(--space-5);
}

.footer-col h4 {
  color: #fff;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-2);
}

.footer-col ul li {
  margin-bottom: 0.6rem;
}

.footer-col ul a {
  font-size: 0.92rem;
  color: var(--dark-text-muted);
  transition: color var(--transition-fast);
}

.footer-col ul a:hover {
  color: #fff;
}

.footer-contact li {
  font-size: 0.92rem;
  margin-bottom: 0.6rem;
  display: flex;
  gap: 0.5rem;
  align-items: flex-start;
}

.footer-contact svg {
  width: 18px;
  height: 18px;
  stroke: var(--primary);
  flex-shrink: 0;
  margin-top: 0.15rem;
}

.footer-bottom {
  border-top: 1px solid rgba(241, 245, 243, 0.12);
  padding-top: var(--space-3);
  text-align: center;
  font-size: 0.85rem;
}

/* ---------- Contact page ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: var(--space-5);
  align-items: start;
}

.contact-form-card,
.contact-info-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
}

.form-group {
  margin-bottom: var(--space-3);
}

.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.4rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg);
  font-size: 0.95rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  outline: none;
  box-shadow: 0 0 0 3px rgba(27, 74, 124, 0.15);
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

.form-note {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: var(--space-1);
}

.success-message {
  display: none;
  text-align: center;
  padding: var(--space-5) var(--space-3);
}

.success-message.is-visible {
  display: block;
}

.success-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-3);
}

.success-icon svg {
  width: 32px;
  height: 32px;
  stroke: var(--primary);
}

.contact-form.is-hidden {
  display: none;
}

.contact-info-card h3 {
  margin-bottom: var(--space-2);
}

.contact-info-card ul {
  margin-bottom: var(--space-4);
}

.contact-info-card li {
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
  font-size: 0.95rem;
  margin-bottom: var(--space-2);
}

.contact-info-card li svg {
  width: 20px;
  height: 20px;
  stroke: var(--primary);
  flex-shrink: 0;
  margin-top: 0.15rem;
}

.next-steps {
  border-top: 1px solid var(--border);
  padding-top: var(--space-3);
}

.next-steps h4 {
  margin-bottom: var(--space-2);
}

.next-steps ol {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.next-steps li {
  font-size: 0.9rem;
  color: var(--text-muted);
  display: flex;
  gap: 0.5rem;
}

.next-steps li .step-num {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--primary);
  flex-shrink: 0;
}

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

.story-block p + p {
  margin-top: var(--space-2);
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
}

.team-card {
  text-align: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-3);
}

.avatar-initials {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary-dark);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-2);
}

.team-card h3 {
  font-size: 1.05rem;
  margin-bottom: 0.3rem;
}

.team-card p {
  font-size: 0.9rem;
}

/* ---------- Mini CTA (industries page) ---------- */
.mini-cta {
  background: var(--primary-light);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  text-align: center;
}

.mini-cta h2 {
  margin-bottom: var(--space-2);
}

.mini-cta p {
  max-width: 560px;
  margin-inline: auto;
  margin-bottom: var(--space-3);
}

/* ---------- Scroll reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .card-grid,
  .case-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .process-grid,
  .metrics-row,
  .values-grid,
  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .stack-groups {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 860px) {
  .main-nav {
    position: fixed;
    inset: var(--header-height) 0 0 0;
    background: var(--bg);
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-4) var(--space-3);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-base), transform var(--transition-base);
    overflow-y: auto;
  }

  .main-nav.is-open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .nav-links {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
    width: 100%;
  }

  .nav-links a {
    display: block;
    width: 100%;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border);
  }

  .nav-cta {
    margin-top: var(--space-3);
    width: 100%;
  }

  .nav-cta .btn {
    width: 100%;
  }

  .nav-toggle {
    display: flex;
  }
}

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

  .card-grid,
  .case-grid,
  .process-grid,
  .metrics-row,
  .values-grid,
  .team-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .detail-card {
    grid-template-columns: 1fr;
  }

  .detail-card ul {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
}

@media (max-width: 480px) {
  :root {
    --space-7: 3.5rem;
    --space-6: 2.75rem;
  }
}