/* ============================================================
   MZZM CONSULTING — STYLESHEET
   Dark motorsports aesthetic, CSS custom properties, mobile-first
   ============================================================ */

/* ------------------------------------------------------------
   0. CUSTOM PROPERTIES (DESIGN TOKENS)
   ------------------------------------------------------------ */
:root {
  /* Core palette */
  --color-bg:          #0a0a0b;
  --color-bg-2:        #111114;
  --color-bg-3:        #18181d;
  --color-bg-4:        #1e1e25;
  --color-surface:     #16161c;
  --color-surface-2:   #1c1c24;

  /* Borders */
  --color-border:      rgba(255, 255, 255, 0.07);
  --color-border-2:    rgba(255, 255, 255, 0.12);

  /* Text */
  --color-text:        #f0f0f4;
  --color-text-muted:  #8a8a9a;
  --color-text-faint:  #5a5a6a;

  /* Accent — electric blue */
  --color-accent:      #0080ff;
  --color-accent-dark: #0060cc;
  --color-accent-light:#4da6ff;
  --color-accent-glow: rgba(0, 128, 255, 0.25);

  /* Gradients */
  --gradient-hero: linear-gradient(
    160deg,
    #0a0a0b 0%,
    #090b10 40%,
    #0f0f14 70%,
    #0a0a0b 100%
  );

  /* Typography */
  --font-sans:    'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Barlow Condensed', 'Inter', sans-serif;

  /* Scale */
  --text-xs:   0.75rem;
  --text-sm:   0.875rem;
  --text-base: 1rem;
  --text-lg:   1.125rem;
  --text-xl:   1.25rem;
  --text-2xl:  1.5rem;
  --text-3xl:  1.875rem;
  --text-4xl:  2.25rem;
  --text-5xl:  3rem;
  --text-6xl:  3.75rem;
  --text-7xl:  4.5rem;

  /* Spacing */
  --space-1:   0.25rem;
  --space-2:   0.5rem;
  --space-3:   0.75rem;
  --space-4:   1rem;
  --space-5:   1.25rem;
  --space-6:   1.5rem;
  --space-8:   2rem;
  --space-10:  2.5rem;
  --space-12:  3rem;
  --space-16:  4rem;
  --space-20:  5rem;
  --space-24:  6rem;
  --space-32:  8rem;

  /* Radius */
  --radius-sm: 4px;
  --radius:    8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  /* Shadows */
  --shadow-sm:  0 1px 3px rgba(0,0,0,0.5);
  --shadow:     0 4px 16px rgba(0,0,0,0.6);
  --shadow-lg:  0 12px 40px rgba(0,0,0,0.7);
  --shadow-accent: 0 0 32px rgba(0,128,255,0.2);

  /* Motion */
  --ease-out:  cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in:   cubic-bezier(0.7, 0, 0.84, 0);
  --dur-fast:  150ms;
  --dur-base:  250ms;
  --dur-slow:  400ms;

  /* Layout */
  --container: 1200px;
  --nav-h:     72px;
}

/* ------------------------------------------------------------
   1. RESET & BASE
   ------------------------------------------------------------ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-h);
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input,
select,
textarea {
  font-family: inherit;
}

/* Focus ring — visible for keyboard users */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* Selection */
::selection {
  background: var(--color-accent);
  color: #fff;
}

/* ------------------------------------------------------------
   2. UTILITY CLASSES
   ------------------------------------------------------------ */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

@media (min-width: 768px) {
  .container { padding-inline: var(--space-8); }
}

@media (min-width: 1024px) {
  .container { padding-inline: var(--space-12); }
}

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

.body-lg {
  font-size: var(--text-lg);
  line-height: 1.7;
  color: var(--color-text-muted);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.875rem 1.75rem;
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: var(--radius);
  transition: all var(--dur-base) var(--ease-out);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-accent);
  color: #fff;
  box-shadow: 0 4px 20px var(--color-accent-glow);
}

.btn--primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--dur-base) var(--ease-out);
}

.btn--primary:hover {
  background: var(--color-accent-light);
  box-shadow: 0 6px 32px rgba(0,128,255,0.4);
  transform: translateY(-1px);
}

.btn--primary:hover::before { opacity: 1; }

.btn--primary:active { transform: translateY(0); }

.btn--ghost {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border-2);
}

.btn--ghost:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: rgba(0,128,255,0.05);
  transform: translateY(-1px);
}

/* Section scaffolding */
.section {
  padding-block: var(--space-24);
  position: relative;
}

@media (min-width: 768px) {
  .section { padding-block: var(--space-32); }
}

.section-eyebrow {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.section-eyebrow::before {
  content: '';
  display: block;
  width: 32px;
  height: 2px;
  background: var(--color-accent);
  flex-shrink: 0;
}

.section-heading {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-4);
}

@media (min-width: 768px) {
  .section-heading { font-size: var(--text-5xl); }
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin-inline: auto;
  margin-bottom: var(--space-16);
}

.section-header .section-eyebrow {
  justify-content: center;
}

.section-header .section-eyebrow::before {
  display: none;
}

.section-sub {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ------------------------------------------------------------
   3. NAVIGATION
   ------------------------------------------------------------ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  transition: background var(--dur-slow) var(--ease-out),
              backdrop-filter var(--dur-slow) var(--ease-out),
              box-shadow var(--dur-slow) var(--ease-out);
}

.site-header.scrolled {
  background: rgba(10, 10, 11, 0.92);
  backdrop-filter: blur(16px) saturate(1.5);
  -webkit-backdrop-filter: blur(16px) saturate(1.5);
  box-shadow: 0 1px 0 var(--color-border), var(--shadow);
}

.nav-inner {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .nav-inner { padding-inline: var(--space-8); }
}

@media (min-width: 1024px) {
  .nav-inner { padding-inline: var(--space-12); }
}

.nav-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}

.nav-logo svg {
  display: block;
}

.footer-logo {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

/* Desktop nav */
.nav-links {
  display: none;
  align-items: center;
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .nav-links {
    display: flex;
  }
}

.nav-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
  transition: color var(--dur-fast) var(--ease-out);
  position: relative;
  padding-block: var(--space-1);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-base) var(--ease-out);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-text);
}

.nav-link.active::after,
.nav-link:hover::after {
  transform: scaleX(1);
}

.nav-link.nav-cta {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 1.25rem;
  background: var(--color-accent);
  color: #fff;
  border-radius: var(--radius);
  font-weight: 600;
  transition: background var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out);
}

.nav-link.nav-cta::after { display: none; }

.nav-link.nav-cta:hover {
  background: var(--color-accent-light);
  transform: translateY(-1px);
  color: #fff;
}

/* Hamburger toggle */
.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  padding: 4px;
  border-radius: var(--radius-sm);
  transition: background var(--dur-fast);
  flex-shrink: 0;
}

.nav-toggle:hover { background: rgba(255,255,255,0.05); }

@media (min-width: 768px) {
  .nav-toggle { display: none; }
}

.hamburger-bar {
  display: block;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--dur-base) var(--ease-out),
              opacity var(--dur-base) var(--ease-out),
              width var(--dur-base) var(--ease-out);
}

.hamburger-bar:last-child {
  width: 70%;
}

/* Open state */
.nav-toggle[aria-expanded="true"] .hamburger-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.nav-toggle[aria-expanded="true"] .hamburger-bar:nth-child(3) {
  width: 100%;
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile nav menu */
@media (max-width: 767px) {
  .nav-links {
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 10, 11, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-8);
    padding: var(--space-8);
    pointer-events: none;
    opacity: 0;
    transform: translateY(-8px);
    transition: opacity var(--dur-slow) var(--ease-out),
                transform var(--dur-slow) var(--ease-out);
  }

  .nav-links.open {
    display: flex;
    pointer-events: auto;
    opacity: 1;
    transform: translateY(0);
  }

  .nav-link {
    font-size: var(--text-2xl);
    font-weight: 600;
    color: var(--color-text);
  }

  .nav-link.nav-cta {
    font-size: var(--text-xl);
    padding: 0.875rem 2rem;
    margin-top: var(--space-4);
  }
}

/* ------------------------------------------------------------
   4. HERO
   ------------------------------------------------------------ */
.hero {
  min-height: 100svh;
  position: relative;
  display: flex;
  align-items: center;
  padding-top: var(--nav-h);
  overflow: hidden;
}

/* Background layers */
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 40%, black 40%, transparent 100%);
}

.hero-stripe {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, transparent, var(--color-accent-glow), transparent);
  animation: stripe-glow 4s ease-in-out infinite;
}

.hero-stripe--1 {
  left: 20%;
  animation-delay: 0s;
  opacity: 0.4;
}

.hero-stripe--2 {
  left: 60%;
  animation-delay: 1.3s;
  opacity: 0.25;
}

.hero-stripe--3 {
  right: 15%;
  animation-delay: 2.6s;
  opacity: 0.3;
}

@keyframes stripe-glow {
  0%, 100% { opacity: 0; transform: scaleY(0.3); }
  50%       { opacity: 1; transform: scaleY(1); }
}

.hero-glare {
  position: absolute;
  top: -10%;
  left: 50%;
  width: 900px;
  height: 600px;
  transform: translateX(-50%);
  background: radial-gradient(ellipse at center, rgba(0,128,255,0.12) 0%, transparent 70%);
  pointer-events: none;
}

/* Hero content */
.hero-content {
  position: relative;
  z-index: 1;
  padding-block: var(--space-20);
}

.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-6);
  animation: fade-up 0.8s var(--ease-out) both;
}

.eyebrow-line {
  display: block;
  width: 40px;
  height: 2px;
  background: var(--color-accent);
}

.hero-heading {
  font-family: var(--font-display);
  font-size: clamp(var(--text-5xl), 8vw, var(--text-7xl));
  font-weight: 800;
  line-height: 1.0;
  letter-spacing: -0.02em;
  max-width: 14ch;
  margin-bottom: var(--space-6);
  animation: fade-up 0.8s var(--ease-out) 0.1s both;
}

.hero-sub {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 56ch;
  margin-bottom: var(--space-10);
  animation: fade-up 0.8s var(--ease-out) 0.2s both;
}

@media (min-width: 768px) {
  .hero-sub { font-size: var(--text-xl); }
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-16);
  animation: fade-up 0.8s var(--ease-out) 0.3s both;
}

/* Hero stats */
.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-8);
  align-items: center;
  animation: fade-up 0.8s var(--ease-out) 0.4s both;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.stat-value {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  font-weight: 800;
  color: var(--color-text);
  line-height: 1;
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-faint);
}

.stat-divider {
  width: 1px;
  height: 48px;
  background: var(--color-border-2);
}

@media (max-width: 480px) {
  .stat-divider { display: none; }
}

/* Scroll cue */
.hero-scroll-cue {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-faint);
  transition: color var(--dur-base) var(--ease-out);
  animation: fade-in 1s var(--ease-out) 1s both;
  z-index: 1;
}

.hero-scroll-cue:hover { color: var(--color-accent); }

.scroll-line {
  display: block;
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, transparent, currentColor);
}

/* ------------------------------------------------------------
   5. ABOUT
   ------------------------------------------------------------ */
.about {
  background: var(--color-bg-2);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.about-grid {
  display: grid;
  gap: var(--space-16);
  align-items: center;
}

@media (min-width: 1024px) {
  .about-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-20);
  }
}

.about-text p + p { margin-top: var(--space-4); }

.about-text p {
  color: var(--color-text-muted);
  line-height: 1.7;
}

.about-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-8);
}

.badge {
  display: inline-block;
  padding: 0.375rem 0.875rem;
  border-radius: 999px;
  border: 1px solid var(--color-border-2);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  background: var(--color-bg-3);
  transition: border-color var(--dur-base) var(--ease-out),
              color var(--dur-base) var(--ease-out);
}

.badge:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* About visual */
.about-visual {
  position: relative;
  height: 360px;
  display: none;
}

@media (min-width: 1024px) {
  .about-visual { display: block; }
}

.about-card {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: border-color var(--dur-base) var(--ease-out),
              transform var(--dur-slow) var(--ease-out);
}

.about-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px) !important;
}

.about-card--1 {
  top: 0;
  left: 0;
  width: 160px;
  animation: float 6s ease-in-out infinite;
}

.about-card--2 {
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 170px;
  animation: float 6s ease-in-out 2s infinite;
}

.about-card--3 {
  bottom: 0;
  right: 0;
  width: 160px;
  animation: float 6s ease-in-out 4s infinite;
}

.about-card-icon {
  color: var(--color-accent);
}

.about-card-label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  text-align: center;
}

.about-bg-accent {
  position: absolute;
  inset: 10%;
  background: radial-gradient(ellipse at center, var(--color-accent-glow) 0%, transparent 70%);
  pointer-events: none;
  z-index: -1;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-12px); }
}

/* Override float for hovered state */
.about-card--2 {
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

/* ------------------------------------------------------------
   6. SERVICES
   ------------------------------------------------------------ */
.services {
  background: var(--color-bg);
}

.services-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.015) 1px, transparent 1px);
  background-size: 80px 80px;
  pointer-events: none;
}

.services-grid {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .services-grid { grid-template-columns: repeat(4, 1fr); gap: var(--space-5); }
}

.service-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding: var(--space-8);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  transition: border-color var(--dur-base) var(--ease-out),
              transform var(--dur-slow) var(--ease-out),
              box-shadow var(--dur-base) var(--ease-out);
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
  transform: scaleX(0);
  transition: transform var(--dur-slow) var(--ease-out);
}

.service-card:hover {
  border-color: rgba(0,128,255,0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg), var(--shadow-accent);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-card--featured {
  background: linear-gradient(135deg, var(--color-surface-2) 0%, var(--color-bg-3) 100%);
  border-color: rgba(0,128,255,0.2);
}

.service-card-number {
  font-family: var(--font-display);
  font-size: var(--text-5xl);
  font-weight: 800;
  color: var(--color-border-2);
  line-height: 1;
  letter-spacing: -0.04em;
  position: absolute;
  top: var(--space-4);
  right: var(--space-5);
  transition: color var(--dur-base) var(--ease-out);
}

.service-card:hover .service-card-number {
  color: rgba(0,128,255,0.15);
}

.service-card-icon {
  color: var(--color-accent);
  transition: transform var(--dur-slow) var(--ease-out);
}

.service-card:hover .service-card-icon {
  transform: scale(1.1);
}

.service-card-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text);
}

.service-card-desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
  flex-grow: 1;
}

.service-card-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.service-card-list li {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-faint);
}

.service-card-list li::before {
  content: '';
  display: block;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-accent);
  flex-shrink: 0;
}

.service-card-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-accent);
  margin-top: auto;
  transition: gap var(--dur-base) var(--ease-out),
              color var(--dur-base) var(--ease-out);
}

.service-card-link:hover {
  gap: var(--space-3);
  color: var(--color-accent-light);
}

.featured-tag {
  position: absolute;
  top: var(--space-4);
  left: var(--space-5);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(0,128,255,0.08);
}

/* ------------------------------------------------------------
   7. WHY MZZM
   ------------------------------------------------------------ */
.why-mzzm {
  background: var(--color-bg-2);
  border-top: 1px solid var(--color-border);
}

.why-grid {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: 1fr;
  margin-bottom: var(--space-16);
}

@media (min-width: 640px) {
  .why-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .why-grid { grid-template-columns: repeat(4, 1fr); }
}

.why-card {
  padding: var(--space-8);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  transition: border-color var(--dur-base) var(--ease-out),
              transform var(--dur-slow) var(--ease-out);
}

.why-card:hover {
  border-color: rgba(0,128,255,0.3);
  transform: translateY(-4px);
}

.why-card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  background: rgba(0,128,255,0.1);
  border: 1px solid rgba(0,128,255,0.2);
  color: var(--color-accent);
  margin-bottom: var(--space-5);
  transition: background var(--dur-base) var(--ease-out),
              transform var(--dur-slow) var(--ease-out);
}

.why-card:hover .why-card-icon {
  background: rgba(0,128,255,0.2);
  transform: scale(1.05);
}

.why-card-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: var(--space-3);
  color: var(--color-text);
}

.why-card-desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
}

.why-cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-5);
  text-align: center;
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
}

.why-cta p {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
}

/* ------------------------------------------------------------
   8. CONTACT
   ------------------------------------------------------------ */
.contact {
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  overflow: hidden;
}

.contact-bg {
  position: absolute;
  bottom: -20%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(ellipse at center, rgba(0,128,255,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.contact-grid {
  display: grid;
  gap: var(--space-16);
  align-items: start;
}

@media (min-width: 1024px) {
  .contact-grid {
    grid-template-columns: 5fr 7fr;
    gap: var(--space-20);
  }
}

.contact-info .section-heading {
  margin-bottom: var(--space-5);
}

.contact-info .body-lg {
  margin-bottom: var(--space-8);
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  margin-bottom: var(--space-8);
}

.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
}

.contact-detail-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius);
  background: var(--color-bg-3);
  border: 1px solid var(--color-border);
  color: var(--color-accent);
  flex-shrink: 0;
}

.contact-detail-label {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: 2px;
}

.contact-detail-value {
  font-size: var(--text-base);
  color: var(--color-text);
  font-weight: 500;
  transition: color var(--dur-fast) var(--ease-out);
}

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

.contact-availability {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.availability-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 3px rgba(34,197,94,0.2);
  animation: pulse-dot 2s ease-in-out infinite;
  flex-shrink: 0;
}

@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 0 3px rgba(34,197,94,0.2); }
  50%       { box-shadow: 0 0 0 6px rgba(34,197,94,0.1); }
}

/* Contact form */
.contact-form-wrapper {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
}

@media (min-width: 640px) {
  .contact-form-wrapper { padding: var(--space-10); }
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.form-row {
  display: grid;
  gap: var(--space-5);
}

@media (min-width: 640px) {
  .form-row { grid-template-columns: 1fr 1fr; }
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
  letter-spacing: 0.01em;
}

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

.form-input {
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--color-bg-3);
  border: 1px solid var(--color-border-2);
  border-radius: var(--radius);
  color: var(--color-text);
  font-size: var(--text-base);
  line-height: 1.5;
  transition: border-color var(--dur-base) var(--ease-out),
              box-shadow var(--dur-base) var(--ease-out),
              background var(--dur-base) var(--ease-out);
}

.form-input::placeholder {
  color: var(--color-text-faint);
}

.form-input:hover {
  border-color: rgba(255,255,255,0.2);
  background: var(--color-bg-4);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(0,128,255,0.15);
  background: var(--color-bg-4);
}

.form-input.error {
  border-color: var(--color-accent);
  background: rgba(0,128,255,0.04);
}

/* Select */
.select-wrapper {
  position: relative;
}

.form-select {
  padding-right: 2.5rem;
  cursor: pointer;
}

.form-select option {
  background: var(--color-bg-3);
  color: var(--color-text);
}

.select-arrow {
  position: absolute;
  right: 0.875rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-faint);
  pointer-events: none;
}

/* Textarea */
.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-error {
  font-size: var(--text-xs);
  color: var(--color-accent);
  font-weight: 500;
  min-height: 1.2em;
}

.form-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
  padding-top: var(--space-2);
}

.form-privacy {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  line-height: 1.5;
  max-width: 32ch;
}

.btn--submit {
  flex-shrink: 0;
  min-width: 160px;
  justify-content: center;
}

.btn--submit .btn-icon {
  transition: transform var(--dur-base) var(--ease-out);
}

.btn--submit:hover .btn-icon {
  transform: translateX(3px);
}

/* Loading state */
.btn--submit.loading {
  pointer-events: none;
  opacity: 0.8;
}

/* Success message */
.form-success {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-5);
  background: rgba(34,197,94,0.08);
  border: 1px solid rgba(34,197,94,0.25);
  border-radius: var(--radius-lg);
  color: #4ade80;
  animation: fade-up 0.5s var(--ease-out) both;
}

.form-success[hidden] { display: none; }

.form-success strong { display: block; margin-bottom: var(--space-1); }

.form-success p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* ------------------------------------------------------------
   9. FOOTER
   ------------------------------------------------------------ */
.site-footer {
  background: var(--color-bg-2);
  border-top: 1px solid var(--color-border);
}

.footer-inner {
  display: grid;
  gap: var(--space-12);
  padding-block: var(--space-16);
}

@media (min-width: 768px) {
  .footer-inner {
    grid-template-columns: 1fr 2fr;
    align-items: start;
  }
}

.footer-logo {
  margin-bottom: var(--space-3);
}

.footer-tagline {
  font-size: var(--text-sm);
  color: var(--color-text-faint);
  line-height: 1.6;
  max-width: 28ch;
}

.footer-nav {
  display: grid;
  gap: var(--space-8);
  grid-template-columns: repeat(2, 1fr);
}

@media (min-width: 640px) {
  .footer-nav { grid-template-columns: repeat(3, 1fr); }
}

.footer-nav-heading {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}

.footer-nav ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-link {
  font-size: var(--text-sm);
  color: var(--color-text-faint);
  transition: color var(--dur-fast) var(--ease-out);
}

.footer-link:hover { color: var(--color-text); }

.footer-bottom {
  border-top: 1px solid var(--color-border);
}

.footer-bottom-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding-block: var(--space-6);
  align-items: flex-start;
}

@media (min-width: 640px) {
  .footer-bottom-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.footer-copy {
  font-size: var(--text-sm);
  color: var(--color-text-faint);
}

.footer-legal {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-faint);
}

.footer-link--sm {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

/* ------------------------------------------------------------
   10. ANIMATIONS
   ------------------------------------------------------------ */
@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* Reveal animations via IntersectionObserver */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--dur-slow) var(--ease-out),
              transform var(--dur-slow) var(--ease-out);
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

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

  html { scroll-behavior: auto; }
}

/* ------------------------------------------------------------
   12. PRINT
   ------------------------------------------------------------ */
@media print {
  .site-header,
  .hero-scroll-cue,
  .nav-toggle { display: none; }

  body { color: #000; background: #fff; }
}