/* ───────────────────────────────────────────────
   Complete MEP Solutions LLP
   Enhanced UI Styles for Turnkey MEP Microsite
   ─────────────────────────────────────────────── */

/* ── Design Tokens ── */
:root {
  /* Primary palette */
  --color-navy: #0b1f3a;
  --color-navy-light: #1a3154;
  --color-blue: #2563eb;
  --color-blue-soft: #e0edff;
  --color-orange: #f97316;
  --color-orange-soft: #fff0e0;
  --color-orange-glow: rgba(249, 115, 22, 0.25);

  /* Neutrals */
  --color-ink: #1e293b;
  --color-muted: #64748b;
  --color-line: #e9edf2;
  --color-soft: #f8fafc;
  --color-white: #ffffff;
  --color-shadow: rgba(11, 31, 58, 0.1);

  /* Typography */
  --font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  /* Borders */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* Transitions */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --transition-fast: 180ms ease;
  --transition-med: 300ms var(--ease-out);
  --transition-slow: 500ms var(--ease-out);
}

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

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

body {
  margin: 0;
  font-family: var(--font-family);
  color: var(--color-ink);
  background: var(--color-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

.container {
  width: min(1120px, calc(100% - 2rem));
  margin-inline: auto;
}

/* ── Typography ── */
h1 {
  font-size: clamp(2.4rem, 5.5vw, 4.2rem);
  font-weight: var(--font-weight-extrabold);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 1rem;
  color: var(--color-navy);
}

h2 {
  font-size: clamp(1.8rem, 3.2vw, 2.8rem);
  font-weight: var(--font-weight-bold);
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 0 0 0.5rem;
  color: var(--color-navy);
}

h3 {
  font-size: clamp(1.1rem, 1.4vw, 1.3rem);
  font-weight: var(--font-weight-semibold);
  line-height: 1.3;
  margin: 0 0 0.5rem;
  color: var(--color-navy);
}

p {
  margin: 0 0 1rem;
  color: var(--color-muted);
}

/* ── Topbar ── */
.topbar {
  background: var(--color-navy);
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.875rem;
  padding: 0.4rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.topbar .container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
}

.topbar a {
  color: rgba(255, 255, 255, 0.85);
  font-weight: var(--font-weight-medium);
  transition: color var(--transition-fast);
  margin-left: 1.2rem;
}

.topbar a:hover {
  color: var(--color-orange);
}

.topbar a:first-of-type {
  margin-left: 0;
}

/* ── Header ── */
.header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-line);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.03);
}

.nav-wrap {
  min-height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand img {
  width: 200px;
  max-width: 48vw;
  height: auto;
  transition: transform var(--transition-med);
}

.brand:hover img {
  transform: scale(1.02);
}

.nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.9rem;
  font-weight: var(--font-weight-semibold);
  color: var(--color-navy);
}

.nav a {
  padding: 0.5rem 1rem;
  border-radius: 999px;
  transition:
    background var(--transition-fast),
    color var(--transition-fast),
    transform var(--transition-fast);
}

.nav a:hover {
  background: var(--color-blue-soft);
  color: var(--color-blue);
}

.nav a[aria-current="page"] {
  background: var(--color-blue-soft);
  color: var(--color-blue);
}

.nav a.quote {
  background: var(--color-orange);
  color: var(--color-white) !important;
  padding: 0.5rem 1.2rem;
  border-radius: 999px;
  font-weight: var(--font-weight-bold);
  box-shadow: 0 4px 12px rgba(249, 115, 22, 0.3);
  transition:
    background var(--transition-fast),
    transform var(--transition-fast),
    box-shadow var(--transition-fast);
}

.nav a.quote:hover {
  background: #e0670e;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(249, 115, 22, 0.4);
}

.menu-toggle {
  display: none;
  border: 1px solid var(--color-line);
  background: var(--color-white);
  padding: 0.4rem 1rem;
  border-radius: 999px;
  font-weight: var(--font-weight-bold);
  font-size: 0.9rem;
  cursor: pointer;
  transition:
    background var(--transition-fast),
    border-color var(--transition-fast);
}

.menu-toggle:hover {
  background: var(--color-soft);
  border-color: var(--color-blue);
}

/* ── Hero ── */
.hero {
  background: linear-gradient(135deg, var(--color-navy) 0%, #1a3154 60%, #2a4b75);
  color: var(--color-white);
  padding: 4.5rem 0;
  overflow: hidden;
  position: relative;
}

.hero::after {
  content: "";
  position: absolute;
  top: -50%;
  right: -10%;
  width: 60%;
  height: 200%;
  background: radial-gradient(ellipse at 70% 50%, rgba(249, 115, 22, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 2.5rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero h1 {
  color: var(--color-white);
  margin-top: 0.5rem;
  background: linear-gradient(to right, #ffffff, #fcd7b0);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  color: rgba(255, 255, 255, 0.85);
  max-width: 600px;
}

.hero .eyebrow {
  color: var(--color-orange) !important;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-weight: var(--font-weight-extrabold);
}

.hero img {
  border-radius: var(--radius-md);
  border: 4px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
  aspect-ratio: 16/10;
  object-fit: cover;
  transition:
    transform var(--transition-slow),
    box-shadow var(--transition-slow);
}

.hero img:hover {
  transform: scale(1.01);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.3);
}

/* ── Buttons ── */
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.8rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.6rem;
  border-radius: 999px;
  font-weight: var(--font-weight-bold);
  font-size: 0.95rem;
  border: 2px solid transparent;
  transition:
    background var(--transition-fast),
    color var(--transition-fast),
    border-color var(--transition-fast),
    transform var(--transition-fast),
    box-shadow var(--transition-fast);
  cursor: pointer;
  text-align: center;
}

.btn.primary {
  background: var(--color-orange);
  color: var(--color-white);
  box-shadow: 0 4px 14px rgba(249, 115, 22, 0.35);
}

.btn.primary:hover {
  background: #e0670e;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(249, 115, 22, 0.45);
}

.btn.light {
  background: var(--color-white);
  color: var(--color-navy);
  border-color: var(--color-line);
}

.btn.light:hover {
  background: var(--color-orange-soft);
  border-color: var(--color-orange);
  color: var(--color-orange);
  transform: translateY(-2px);
}

/* ── Sections ── */
.section {
  padding: 4rem 0;
}

.section:nth-child(even):not(.section-dark):not(.section-blue):not(.section-light):not(.cta) {
  background: var(--color-soft);
}

.section-head {
  max-width: 780px;
  margin-bottom: 2.5rem;
}

.section-head .eyebrow {
  color: var(--color-orange);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-weight: var(--font-weight-extrabold);
}

.section-head h2 {
  margin: 0.3rem 0 0.8rem;
}

.section-head p {
  color: var(--color-muted);
  font-size: 1.05rem;
}

/* ── Cards ── */
.cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.card {
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: 0 4px 12px var(--color-shadow);
  transition:
    transform var(--transition-med),
    box-shadow var(--transition-med),
    border-color var(--transition-med);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--color-orange);
  opacity: 0.6;
  transition: opacity var(--transition-fast);
}

.card:nth-child(2n)::before {
  background: var(--color-blue);
}

.card:nth-child(3n)::before {
  background: #8b5cf6; /* purple accent */
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 32px rgba(11, 31, 58, 0.12);
  border-color: var(--color-orange);
}

.card:hover::before {
  opacity: 1;
}

.card h3 {
  margin-top: 0.2rem;
}

.card p {
  margin-bottom: 0;
  color: var(--color-muted);
}

/* ── Split panel ── */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}

.panel {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 1.8rem;
  box-shadow: 0 4px 12px var(--color-shadow);
  border-left: 4px solid var(--color-blue);
  transition:
    transform var(--transition-med),
    box-shadow var(--transition-med);
}

.panel:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(11, 31, 58, 0.1);
}

.panel h2 {
  font-size: 1.4rem;
  margin-bottom: 0.8rem;
}

.list {
  display: grid;
  gap: 0.6rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.list li {
  padding: 0.6rem 1rem;
  background: var(--color-soft);
  border-radius: var(--radius-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-ink);
  border-left: 3px solid var(--color-blue);
}

/* ── CTA section ── */
.cta {
  background: var(--color-navy);
  color: var(--color-white);
  text-align: center;
  padding: 3rem 0;
}

.cta h2 {
  color: var(--color-white);
}

.cta p {
  color: rgba(255, 255, 255, 0.8);
  max-width: 600px;
  margin-inline: auto;
}

.cta .btn.light {
  color: var(--color-navy);
}

.cta .btn.light:hover {
  background: var(--color-orange-soft);
  border-color: var(--color-orange);
  color: var(--color-orange);
}

/* ── Trust Strip ── */
.trust-strip {
  background: var(--color-white);
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  padding: 1.5rem 0;
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}

.trust-item {
  padding: 1.2rem 1.5rem;
  border-right: 1px solid var(--color-line);
  text-align: center;
}

.trust-item:last-child {
  border-right: 0;
}

.trust-item strong {
  display: block;
  color: var(--color-navy);
  font-size: 1rem;
  font-weight: var(--font-weight-bold);
}

.trust-item span {
  display: block;
  margin-top: 0.2rem;
  color: var(--color-muted);
  font-size: 0.875rem;
}

/* ── Quick Answer ── */
.quick-answer {
  background: var(--color-white);
  border-left: 6px solid var(--color-orange);
  border-radius: var(--radius-md);
  padding: 2rem;
  box-shadow: 0 8px 24px var(--color-shadow);
}

.quick-answer h2 {
  font-size: 1.8rem;
  margin: 0.5rem 0;
  color: var(--color-navy);
}

.quick-answer p {
  font-size: 1.05rem;
  color: var(--color-muted);
}

/* ── Process Steps ── */
.process-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.2rem;
}

.process-step {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  transition:
    background var(--transition-med),
    transform var(--transition-med);
}

.process-step:hover {
  background: rgba(255, 255, 255, 0.12);
  transform: translateY(-4px);
}

.process-step span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-sm);
  background: var(--color-orange);
  color: var(--color-white);
  font-weight: var(--font-weight-extrabold);
  font-size: 0.9rem;
}

.process-step h3 {
  margin: 0.8rem 0 0.4rem;
  color: var(--color-white);
  font-size: 1rem;
}

.process-step p {
  margin: 0;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.875rem;
}

/* ── FAQ ── */
.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.faq-card {
  background: var(--color-white);
  border-left: 4px solid var(--color-blue);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: 0 4px 12px var(--color-shadow);
  transition:
    transform var(--transition-med),
    box-shadow var(--transition-med);
}

.faq-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(11, 31, 58, 0.1);
}

.faq-card h3 {
  margin-top: 0;
  font-size: 1.05rem;
}

.faq-card p {
  margin: 0;
  color: var(--color-muted);
}

/* ── Section Variants ── */
.section-blue {
  background: var(--color-blue-soft);
}

.section-dark {
  background: linear-gradient(145deg, var(--color-navy) 0%, #102744 100%);
  color: rgba(255, 255, 255, 0.9);
}

.section-dark h2,
.section-dark .section-title,
.section-dark .lead {
  color: var(--color-white);
}

.section-dark p {
  color: rgba(255, 255, 255, 0.74);
}

.section-light {
  background: var(--color-soft);
}

/* ── CTA Inner (inside dark section) ── */
.cta-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 2rem;
  padding: 1.5rem 0;
}

.cta-inner h2 {
  color: var(--color-white);
  font-size: clamp(1.8rem, 3vw, 2.6rem);
}

.cta-inner p {
  color: rgba(255, 255, 255, 0.8);
  max-width: 600px;
}

.cta-inner .btn.primary {
  background: var(--color-orange);
}

.cta-inner .btn.primary:hover {
  background: #e0670e;
}

.cta-inner .btn.light {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.3);
  color: var(--color-white);
}

.cta-inner .btn.light:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--color-white);
}

/* ── Check List ── */
.check-list {
  display: grid;
  gap: 0.6rem;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 2rem;
  color: var(--color-ink);
  font-weight: var(--font-weight-medium);
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--color-orange);
  font-weight: var(--font-weight-extrabold);
}

/* ── Footer ── */
.footer {
  background: var(--color-navy);
  color: rgba(255, 255, 255, 0.85);
  padding-top: 3rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1.2fr 0.8fr 1fr;
  gap: 2rem;
}

.footer-logo {
  width: 200px;
  background: var(--color-white);
  border-radius: var(--radius-sm);
  padding: 0.5rem;
  margin-bottom: 0.8rem;
}

.footer h2 {
  color: var(--color-white);
  font-size: 1.1rem;
  margin-bottom: 0.8rem;
}

.footer a {
  display: block;
  margin: 0.4rem 0;
  color: rgba(255, 255, 255, 0.7);
  transition:
    color var(--transition-fast),
    transform var(--transition-fast);
}

.footer a:hover {
  color: var(--color-orange);
  transform: translateX(4px);
}

.copyright {
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin-top: 2rem;
  padding: 1.2rem 0;
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.875rem;
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .cards {
    grid-template-columns: repeat(2, 1fr);
  }
  .process-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .trust-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 860px) {
  .menu-toggle {
    display: block;
  }

  .nav {
    display: none;
    position: absolute;
    left: 1rem;
    right: 1rem;
    top: 70px;
    flex-direction: column;
    align-items: stretch;
    background: var(--color-white);
    border: 1px solid var(--color-line);
    border-radius: var(--radius-md);
    padding: 1rem;
    box-shadow: 0 12px 32px var(--color-shadow);
    gap: 0.25rem;
  }

  .nav.open {
    display: flex;
  }

  .nav a {
    border-radius: var(--radius-sm);
    padding: 0.6rem 1rem;
    text-align: center;
  }

  .hero-grid,
  .split,
  .cta-inner {
    grid-template-columns: 1fr;
  }

  .hero-grid img {
    order: -1;
  }

  .hero {
    padding: 2.5rem 0;
  }

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

  .trust-item {
    border-right: 0;
    border-bottom: 1px solid var(--color-line);
  }

  .trust-item:last-child {
    border-bottom: 0;
  }
}

@media (max-width: 640px) {
  .cards,
  .process-grid,
  .faq-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

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

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

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

  .hero-grid img {
    min-height: 200px;
  }

  .topbar .container {
    flex-direction: column;
    align-items: flex-start;
  }

  .topbar a {
    margin-left: 0;
    margin-right: 1rem;
  }

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

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

  .cta-inner .actions {
    flex-direction: row;
  }

  .section {
    padding: 2.5rem 0;
  }
}

/* ── Utility animations ── */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.card,
.panel,
.process-step,
.faq-card,
.trust-item {
  animation: fadeInUp 0.6s var(--ease-out) both;
}

.card:nth-child(1) {
  animation-delay: 0.05s;
}
.card:nth-child(2) {
  animation-delay: 0.1s;
}
.card:nth-child(3) {
  animation-delay: 0.15s;
}
.card:nth-child(4) {
  animation-delay: 0.2s;
}
.card:nth-child(5) {
  animation-delay: 0.25s;
}
.card:nth-child(6) {
  animation-delay: 0.3s;
}
.card:nth-child(7) {
  animation-delay: 0.35s;
}
.card:nth-child(8) {
  animation-delay: 0.4s;
}

/* subtle pulse on call-to-action buttons */
.btn.primary {
  animation: pulse-glow 2.5s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%,
  100% {
    box-shadow: 0 4px 14px rgba(249, 115, 22, 0.35);
  }
  50% {
    box-shadow: 0 4px 24px rgba(249, 115, 22, 0.6);
  }
}

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