/* ==================================================
   TensorApps — Corporate Site Styles
   ================================================== */

:root {
  --bg: #ffffff;
  --bg-elevated: #f6f6f7;
  --bg-card: rgba(0, 0, 0, 0.03);
  --border-soft: rgba(0, 0, 0, 0.09);
  --text-primary: #121212;
  --text-secondary: #55585e;
  --text-muted: #8a8d93;
  --brand-yellow: #ffb800;
  --brand-yellow-soft: #ffcf4d;
  --brand-yellow-dim: rgba(255, 184, 0, 0.12);
  --brand-yellow-ink: #8a5a00;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --max-width: 1200px;
  --font-heading: "Plus Jakarta Sans", "Inter", sans-serif;
  --font-body: "Inter", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5 {
  font-family: var(--font-heading);
  font-weight: 800;
  line-height: 1.15;
  margin: 0 0 16px;
  letter-spacing: -0.01em;
}

p {
  margin: 0 0 16px;
  color: var(--text-secondary);
}

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

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 32px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--brand-yellow-ink);
  margin-bottom: 16px;
}

.eyebrow::before {
  content: "";
  width: 20px;
  height: 2px;
  background: var(--brand-yellow);
  display: inline-block;
}

.section-head {
  max-width: 640px;
  margin: 0 auto 56px;
  text-align: center;
}

.section-head h2 {
  font-size: clamp(28px, 4vw, 42px);
  color: var(--text-primary);
}

.section-head p {
  font-size: 17px;
}

section {
  padding: 100px 0;
  position: relative;
}

/* Buttons
================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 28px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 15px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--brand-yellow);
  color: #121212;
  box-shadow: 0 8px 24px rgba(255, 184, 0, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(255, 184, 0, 0.35);
}

.btn-ghost {
  background: transparent;
  border-color: rgba(0, 0, 0, 0.2);
  color: var(--text-primary);
}

.btn-ghost:hover {
  border-color: var(--brand-yellow);
  color: var(--brand-yellow);
  transform: translateY(-2px);
}

.btn-block {
  width: 100%;
}

/* Header
================================================== */
.s-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 32px;
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-soft);
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 19px;
  color: var(--text-primary);
}

.site-logo img {
  width: 32px;
  height: 32px;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 36px;
}

.header-nav a {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--text-secondary);
  transition: color 0.2s ease;
  position: relative;
}

.header-nav a:hover,
.header-nav a.active {
  color: var(--text-primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
}

/* Hero
================================================== */
.s-hero {
  padding: 190px 0 120px;
  overflow: hidden;
  background:
    radial-gradient(circle at 85% 15%, rgba(255, 184, 0, 0.14), transparent 45%),
    radial-gradient(circle at 10% 90%, rgba(255, 184, 0, 0.08), transparent 40%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-tagline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--brand-yellow-dim);
  border: 1px solid rgba(255, 184, 0, 0.35);
  color: var(--brand-yellow-ink);
  padding: 8px 18px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 14px;
  margin-bottom: 24px;
}

.hero-content h1 {
  font-size: clamp(34px, 5vw, 56px);
  color: var(--text-primary);
}

.hero-content h1 .highlight {
  color: var(--brand-yellow);
}

.hero-content p {
  font-size: 18px;
  max-width: 560px;
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 20px;
}

.hero-promo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--brand-yellow-ink);
  margin-bottom: 36px;
}

.hero-promo i {
  color: var(--brand-yellow);
}

.hero-stats {
  display: flex;
  gap: 40px;
}

.hero-stats .stat b {
  display: block;
  font-family: var(--font-heading);
  font-size: 26px;
  color: var(--text-primary);
}

.hero-stats .stat span {
  font-size: 13px;
  color: var(--text-muted);
}

/* Hero dashboard mockup
================================================== */
.hero-visual {
  position: relative;
}

.dashboard-card {
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  padding: 24px;
  backdrop-filter: blur(20px);
  box-shadow: 0 30px 80px rgba(18, 18, 18, 0.12);
}

.dashboard-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.dashboard-dots {
  display: flex;
  gap: 6px;
}

.dashboard-dots span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.15);
}

.dashboard-dots span:first-child {
  background: var(--brand-yellow);
}

.dashboard-pill {
  font-size: 11px;
  font-weight: 700;
  color: var(--brand-yellow-ink);
  background: var(--brand-yellow-dim);
  padding: 4px 10px;
  border-radius: 999px;
}

.dashboard-chart {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  height: 120px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border-soft);
  margin-bottom: 20px;
}

.dashboard-chart span {
  flex: 1;
  background: linear-gradient(180deg, var(--brand-yellow), rgba(255, 184, 0, 0.15));
  border-radius: 6px 6px 0 0;
}

.dashboard-rows {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.dashboard-row {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(0, 0, 0, 0.02);
  border: 1px solid var(--border-soft);
  padding: 12px 14px;
  border-radius: var(--radius-sm);
}

.dashboard-row i {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: var(--brand-yellow-dim);
  color: var(--brand-yellow);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
}

.dashboard-row .label {
  flex: 1;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-primary);
}

.dashboard-row .status {
  font-size: 11px;
  font-weight: 700;
  color: #4ade80;
}

.dashboard-float {
  position: absolute;
  background: #ffffff;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  box-shadow: 0 20px 50px rgba(18, 18, 18, 0.16);
}

.dashboard-float--top {
  top: -24px;
  right: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.dashboard-float--top i {
  color: var(--brand-yellow);
}

.dashboard-float--bottom {
  bottom: -28px;
  left: -20px;
}

.dashboard-float small {
  display: block;
  color: var(--text-muted);
  font-size: 11px;
}

.dashboard-float strong {
  font-size: 18px;
  color: var(--text-primary);
}

/* Logo strip
================================================== */
.logo-strip {
  padding: 40px 0;
  border-top: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
}

.logo-strip .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}

.logo-strip span {
  font-size: 13px;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.logo-strip .strip-items {
  display: flex;
  gap: 36px;
  color: var(--text-muted);
  font-size: 22px;
}

/* Bento / Pillars
================================================== */
.s-pillars {
  background: var(--bg);
}

.bento-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.bento-card {
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.bento-card:hover {
  transform: translateY(-6px);
  border-color: rgba(255, 184, 0, 0.4);
}

.bento-card--feature {
  grid-column: span 2;
  background: linear-gradient(145deg, rgba(255, 184, 0, 0.12), rgba(0, 0, 0, 0.02));
}

.bento-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-sm);
  background: var(--brand-yellow-dim);
  color: var(--brand-yellow);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 24px;
}

.bento-card h3 {
  font-size: 21px;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.bento-card p {
  font-size: 15px;
  margin-bottom: 20px;
}

.bento-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.bento-tags span {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-secondary);
  background: rgba(0, 0, 0, 0.04);
  border: 1px solid var(--border-soft);
  padding: 6px 12px;
  border-radius: 999px;
}

/* Process timeline
================================================== */
.s-process {
  background: var(--bg-elevated);
}

.timeline {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.timeline::before {
  content: "";
  position: absolute;
  top: 34px;
  left: 6%;
  right: 6%;
  height: 2px;
  background: repeating-linear-gradient(
    90deg,
    rgba(255, 184, 0, 0.4) 0,
    rgba(255, 184, 0, 0.4) 8px,
    transparent 8px,
    transparent 16px
  );
  z-index: 0;
}

.timeline-step {
  position: relative;
  z-index: 1;
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  padding: 28px 22px;
  text-align: left;
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.timeline-step:hover {
  transform: translateY(-6px);
  border-color: rgba(255, 184, 0, 0.4);
}

.timeline-step .step-number {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--brand-yellow);
  color: #121212;
  font-weight: 800;
  font-family: var(--font-heading);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

.timeline-step h3 {
  font-size: 17px;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.timeline-step p {
  font-size: 14px;
  margin-bottom: 0;
}

/* Tech stack
================================================== */
.s-tech {
  background: var(--bg);
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 18px;
}

.tech-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  padding: 28px 14px;
  text-align: center;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
  color: var(--text-secondary);
}

.tech-item:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 184, 0, 0.4);
  box-shadow: 0 12px 24px rgba(255, 184, 0, 0.14);
}

.tech-item__icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  background: var(--brand-yellow-dim);
  color: var(--brand-yellow);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  transition: transform 0.2s ease;
}

.tech-item__icon i,
.tech-item__icon svg {
  width: 1em;
  height: 1em;
}

.tech-item:hover .tech-item__icon {
  transform: scale(1.08);
}

.tech-item__label {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--text-primary);
}

/* Contact
================================================== */
.s-contact {
  background: var(--bg-elevated);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: flex-start;
}

.contact-intro h2 {
  font-size: clamp(28px, 4vw, 40px);
  color: var(--text-primary);
}

.consult-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--brand-yellow-dim);
  border: 1px solid rgba(255, 184, 0, 0.35);
  color: var(--brand-yellow-ink);
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 13.5px;
  font-weight: 700;
  margin-top: 18px;
}

.consult-badge i {
  color: var(--brand-yellow);
}

.contact-methods {
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-method {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  border-radius: var(--radius-md);
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.contact-method:hover {
  border-color: rgba(255, 184, 0, 0.4);
  transform: translateX(4px);
}

.contact-method i {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: #121212;
  background: var(--brand-yellow);
  flex-shrink: 0;
}

.contact-method.whatsapp i {
  background: #25d366;
}

.contact-method .label {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.contact-method strong {
  display: block;
  font-size: 15px;
  color: var(--text-primary);
}

.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  padding: 36px;
  backdrop-filter: blur(20px);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-bottom: 18px;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-field.full {
  grid-column: 1 / -1;
}

.form-field label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-field input,
.form-field select,
.form-field textarea {
  background: rgba(0, 0, 0, 0.02);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  padding: 13px 16px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 14.5px;
  outline: none;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  border-color: var(--brand-yellow);
  background: rgba(0, 0, 0, 0.03);
}

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

.form-note {
  font-size: 12.5px;
  color: var(--text-muted);
  margin-top: 14px;
  text-align: center;
}

/* Footer
================================================== */
.s-footer {
  background: #0d0d0d;
  border-top: 1px solid var(--border-soft);
  padding: 80px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1.3fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--border-soft);
}

.footer-brand .site-logo {
  margin-bottom: 14px;
}

.footer-tagline {
  color: var(--brand-yellow);
  font-weight: 700;
  font-size: 15px;
  margin-bottom: 18px;
}

.footer-brand p {
  font-size: 14px;
  max-width: 320px;
}

.footer-social {
  display: flex;
  gap: 12px;
  margin-top: 20px;
}

.footer-social a {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  border: 1px solid var(--border-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.footer-social a:hover {
  color: var(--brand-yellow);
  border-color: var(--brand-yellow);
}

.footer-col h4 {
  font-size: 14px;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 20px;
}

.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col ul a {
  font-size: 14.5px;
  color: var(--text-secondary);
  transition: color 0.2s ease;
}

.footer-col ul a:hover {
  color: var(--brand-yellow);
}

.footer-legal {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.9;
}

.footer-legal strong {
  color: #fff;
  display: block;
  margin-bottom: 6px;
}

.footer-legal .gstin {
  display: inline-block;
  margin-top: 6px;
  padding: 4px 10px;
  border: 1px solid var(--border-soft);
  border-radius: 999px;
  font-size: 12.5px;
  color: var(--brand-yellow);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 24px;
  font-size: 13px;
  color: var(--text-muted);
}

/* Floating WhatsApp
================================================== */
.whatsapp-float {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 400;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: #25d366;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  box-shadow: 0 12px 30px rgba(37, 211, 102, 0.45);
  transition: transform 0.2s ease;
}

.whatsapp-float:hover {
  transform: scale(1.08);
}

/* Reveal animation
================================================== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* Linked cards (services / tech grid items are <a>)
================================================== */
.bento-card {
  display: block;
  text-decoration: none;
}

.tech-item {
  text-decoration: none;
}

.bento-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  font-weight: 700;
  color: var(--brand-yellow-ink);
}

.bento-card:hover .bento-more {
  gap: 12px;
  transition: gap 0.2s ease;
}

.tech-item {
  position: relative;
}

/* Page hero (subpages: services & technology detail)
================================================== */
.page-hero {
  padding: 160px 0 80px;
  background:
    radial-gradient(circle at 88% 10%, rgba(255, 184, 0, 0.14), transparent 45%);
}

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.breadcrumb a {
  color: var(--text-secondary);
}

.breadcrumb a:hover {
  color: var(--brand-yellow-ink);
}

.breadcrumb span[aria-current] {
  color: var(--text-primary);
}

.page-hero h1 {
  font-size: clamp(30px, 4.5vw, 46px);
  color: var(--text-primary);
  max-width: 780px;
}

.page-hero h1 i {
  color: var(--brand-yellow-ink);
  margin-right: 10px;
}

.page-hero .lead {
  font-size: 18px;
  max-width: 680px;
  margin-bottom: 0;
}

/* Detail page layout (services & technology)
================================================== */
.detail-section {
  padding: 80px 0;
}

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

.detail-grid {
  display: grid;
  grid-template-columns: 1.7fr 1fr;
  gap: 48px;
  align-items: start;
}

.detail-grid h2 {
  font-size: 26px;
  color: var(--text-primary);
}

.detail-grid h3 {
  font-size: 19px;
  color: var(--text-primary);
  margin-top: 32px;
}

.detail-list {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.detail-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 15px;
  color: var(--text-secondary);
}

.detail-list i {
  color: var(--brand-yellow-ink);
  background: var(--brand-yellow-dim);
  width: 24px;
  height: 24px;
  min-width: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  margin-top: 2px;
}

.sidebar-card {
  position: sticky;
  top: 100px;
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.sidebar-card h4 {
  font-size: 16px;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.sidebar-card p {
  font-size: 14.5px;
  margin-bottom: 24px;
}

.sidebar-card .contact-method {
  padding: 12px 14px;
}

.sidebar-card .contact-method + .contact-method {
  margin-top: 10px;
}

/* Related grid (cross-links between services and technology pages)
================================================== */
.related-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.related-card {
  display: block;
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  padding: 20px;
  text-decoration: none;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.related-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 184, 0, 0.4);
}

.related-card i {
  font-size: 22px;
  color: var(--brand-yellow-ink);
  margin-bottom: 10px;
}

.related-card span {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
}

/* Responsive
================================================== */
@media (max-width: 1024px) {
  .hero-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    order: -1;
    max-width: 420px;
    margin: 0 auto 40px;
  }

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

  .bento-card--feature {
    grid-column: span 2;
  }

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

  .timeline::before {
    display: none;
  }

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

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

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

  .sidebar-card {
    position: static;
  }

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

@media (max-width: 780px) {
  .header-nav {
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    flex-direction: column;
    align-items: flex-start;
    padding: 24px 32px;
    gap: 20px;
    border-bottom: 1px solid var(--border-soft);
    transform: translateY(-130%);
    transition: transform 0.3s ease;
  }

  .header-nav.is-open {
    transform: translateY(0);
  }

  .nav-toggle {
    display: flex;
  }

  .header-actions .btn-primary span {
    display: none;
  }

  section {
    padding: 72px 0;
  }

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

  .bento-card--feature {
    grid-column: span 1;
  }

  .tech-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .form-field.full {
    grid-column: 1;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

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

  .page-hero {
    padding: 130px 0 56px;
  }
}