/* Kesari India — logistics-focused design system */
:root {
  --color-bg: #f4f6f9;
  --color-surface: #ffffff;
  --color-text: #1a2332;
  --color-text-muted: #5c6b7f;
  --color-primary: #0c2340;
  --color-primary-hover: #153a5f;
  --color-accent: #c9a227;
  --color-accent-hover: #b89220;
  --color-border: #e2e8f0;
  --font-sans: "DM Sans", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(12, 35, 64, 0.08);
  --header-h: 4rem;
  --max: 72rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
}

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

a {
  color: var(--color-primary);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  padding: 0.75rem 1rem;
  background: var(--color-primary);
  color: #fff;
}

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

.container {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-h);
  gap: 1rem;
}

.logo {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  color: #fff;
  text-decoration: none;
}

.logo:hover {
  color: #fff;
  opacity: 0.92;
}

.logo-mark {
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.logo-sub {
  font-size: 0.7rem;
  opacity: 0.85;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.35);
  color: #fff;
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.875rem;
}

.nav-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.25rem 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-list a {
  color: rgba(255, 255, 255, 0.92);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9375rem;
}

.nav-list a:hover,
.nav-list a[aria-current="page"] {
  color: var(--color-accent);
  text-decoration: none;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.9375rem;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s, color 0.15s, transform 0.1s;
}

.btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

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

.btn-primary:hover {
  background: var(--color-accent-hover);
  color: var(--color-primary);
  text-decoration: none;
}

.btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.5);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #fff;
  color: #fff;
  text-decoration: none;
}

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, #1a3a5c 55%, #0c2340 100%);
  color: #fff;
  padding: clamp(2.5rem, 6vw, 4.5rem) 0;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 2rem;
  align-items: center;
}

@media (min-width: 900px) {
  .hero-inner {
    grid-template-columns: 1fr 1fr;
  }
}

.hero h1 {
  margin: 0 0 1rem;
  font-size: clamp(1.85rem, 4vw, 2.75rem);
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.hero-lead {
  margin: 0 0 1.5rem;
  font-size: 1.05rem;
  opacity: 0.92;
  max-width: 36rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.hero-card {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius);
  padding: 1.5rem;
  backdrop-filter: blur(8px);
}

.hero-card h2 {
  margin: 0 0 0.75rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-accent);
}

.hero-card ul {
  margin: 0;
  padding-left: 1.25rem;
  opacity: 0.95;
  font-size: 0.9375rem;
}

/* Sections */
section {
  padding: clamp(2.5rem, 5vw, 4rem) 0;
}

.section-title {
  margin: 0 0 0.5rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-primary);
}

.section-intro {
  margin: 0 0 2rem;
  max-width: 40rem;
  color: var(--color-text-muted);
}

/* Trust strip */
.trust-strip {
  background: var(--color-surface);
  border-block: 1px solid var(--color-border);
  padding: 1.25rem 0;
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
  text-align: center;
}

.trust-item strong {
  display: block;
  font-size: 1.35rem;
  color: var(--color-primary);
}

.trust-item span {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* Cards */
.card-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.card {
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--color-border);
}

.card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.125rem;
  color: var(--color-primary);
}

.card p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

.card-icon {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(12, 35, 64, 0.08), rgba(201, 162, 39, 0.15));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.02em;
}

/* CTA band */
.cta-band {
  background: var(--color-primary);
  color: #fff;
  padding: clamp(2rem, 4vw, 3rem) 0;
  text-align: center;
}

.cta-band h2 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.35rem, 2.5vw, 1.75rem);
}

.cta-band p {
  margin: 0 0 1.25rem;
  opacity: 0.9;
}

/* Footer */
.site-footer {
  background: #0a1c32;
  color: rgba(255, 255, 255, 0.75);
  padding: 2.5rem 0 1.5rem;
  font-size: 0.875rem;
}

.footer-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  margin-bottom: 2rem;
}

.site-footer h3 {
  margin: 0 0 0.75rem;
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
}

.site-footer a {
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--color-accent);
  text-decoration: underline;
}

.footer-bottom {
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: space-between;
  align-items: center;
}

/* Page header (inner pages) */
.page-header {
  background: var(--color-primary);
  color: #fff;
  padding: 2rem 0 2.5rem;
}

.page-header h1 {
  margin: 0;
  font-size: clamp(1.65rem, 3vw, 2.25rem);
}

.page-header p {
  margin: 0.5rem 0 0;
  opacity: 0.88;
  max-width: 36rem;
}

.breadcrumb {
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.8125rem;
  opacity: 0.85;
}

.breadcrumb a {
  color: #fff;
}

/* Forms */
.form-grid {
  display: grid;
  gap: 1rem;
  max-width: 32rem;
}

label {
  display: block;
  font-weight: 500;
  font-size: 0.875rem;
  margin-bottom: 0.35rem;
}

input,
select,
textarea {
  width: 100%;
  padding: 0.65rem 0.85rem;
  font-family: inherit;
  font-size: 1rem;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-surface);
}

input:focus,
select:focus,
textarea:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 1px;
}

textarea {
  min-height: 8rem;
  resize: vertical;
}

/* Prose */
.prose {
  max-width: 42rem;
}

.prose h2 {
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  font-size: 1.25rem;
  color: var(--color-primary);
}

.prose p,
.prose li {
  color: var(--color-text-muted);
}

/* Mobile nav */
@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .nav-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-primary);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1rem;
    display: none;
    flex-direction: column;
  }

  .nav-menu.is-open {
    display: flex;
  }

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
  }

  .header-inner {
    position: relative;
    flex-wrap: wrap;
  }

  .nav-menu {
    width: 100%;
    order: 3;
  }
}