/* ==========================================================================
   clovertech.ai — Premium Editorial Styles
   ========================================================================== */

/* --------------------------------------------------------------------------
   Custom Properties
   -------------------------------------------------------------------------- */
:root {
  /* Dark palette */
  --color-black: #0a0a0a;
  --color-charcoal: #141414;
  --color-dark: #1a1a1a;
  --color-dark-elevated: #222222;

  /* Light palette */
  --color-white: #ffffff;
  --color-off-white: #fafafa;
  --color-cream: #f5f5f4;

  /* Grays */
  --color-gray-100: #e5e5e5;
  --color-gray-200: #d4d4d4;
  --color-gray-300: #a3a3a3;
  --color-gray-400: #737373;
  --color-gray-500: #525252;
  --color-gray-600: #404040;

  /* Accent — deep muted green */
  --color-accent: #4a5d52;
  --color-accent-light: #5a7066;

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
    monospace;

  /* Type 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: 2rem;
  --text-4xl: 2.5rem;
  --text-5xl: 3.25rem;
  --text-6xl: 4rem;

  /* 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;

  /* Layout */
  --max-width: 1200px;
  --max-width-narrow: 720px;
  --nav-height: 72px;

  /* Borders */
  --border-radius: 2px;

  /* Transitions */
  --transition: 200ms ease;
}

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

* {
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-gray-600);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

/* --------------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------------- */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 500;
  line-height: 1.2;
  color: var(--color-black);
}

h1 {
  font-size: var(--text-3xl);
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 1.15;
}

h2 {
  font-size: var(--text-sm);
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-gray-400);
}

h3 {
  font-size: var(--text-xl);
  font-weight: 500;
  letter-spacing: -0.01em;
}

p {
  margin-bottom: var(--space-4);
}

p:last-child {
  margin-bottom: 0;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}

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

/* --------------------------------------------------------------------------
   Layout
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

/* --------------------------------------------------------------------------
   Navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background-color: transparent;
  transition: background-color var(--transition);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-height);
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.logo {
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-white);
  letter-spacing: -0.01em;
}

.logo:hover {
  color: var(--color-white);
}

.nav-links {
  display: flex;
  gap: var(--space-8);
  list-style: none;
}

.nav-links a {
  font-size: var(--text-sm);
  color: var(--color-gray-300);
  transition: color var(--transition);
}

.nav-links a:hover {
  color: var(--color-white);
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 400;
  letter-spacing: 0.02em;
  border-radius: var(--border-radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

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

.btn-outline {
  background-color: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.4);
}

.btn-outline:hover {
  background-color: var(--color-white);
  color: var(--color-black);
  border-color: var(--color-white);
}

.btn-solid {
  background-color: var(--color-black);
  color: var(--color-white);
  border-color: var(--color-black);
}

.btn-solid:hover {
  background-color: var(--color-charcoal);
  border-color: var(--color-charcoal);
}

.btn-small {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
}

.btn-text {
  font-size: var(--text-sm);
  color: var(--color-gray-300);
  padding: var(--space-3) 0;
  border-bottom: 1px solid transparent;
  transition: all var(--transition);
}

.btn-text:hover {
  color: var(--color-white);
  border-bottom-color: var(--color-white);
}

/* Light theme buttons (for light sections) */
.services .btn-outline,
.approach .btn-outline,
.about .btn-outline,
.contact .btn-outline {
  color: var(--color-black);
  border-color: var(--color-gray-200);
}

.services .btn-outline:hover,
.approach .btn-outline:hover,
.about .btn-outline:hover,
.contact .btn-outline:hover {
  background-color: var(--color-black);
  color: var(--color-white);
  border-color: var(--color-black);
}

/* --------------------------------------------------------------------------
   Section Styles
   -------------------------------------------------------------------------- */
section {
  padding: var(--space-20) 0;
}

.section-header {
  margin-bottom: var(--space-12);
}

.section-header h2 {
  display: inline-block;
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-gray-200);
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: var(--space-32) 0 var(--space-24);
  background-color: var(--color-charcoal);
  overflow: hidden;
}

.hero-background {
  position: absolute;
  inset: 0;
  background-color: var(--color-charcoal);
  background-image: url("background.png");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(10, 10, 10, 0.4) 0%,
    rgba(20, 20, 20, 0.7) 100%
  );
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero-content {
  max-width: 800px;
}

.hero-eyebrow {
  display: block;
  font-size: var(--text-xs);
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-gray-400);
  margin-bottom: var(--space-6);
}

.hero h1 {
  color: var(--color-white);
  margin-bottom: var(--space-6);
}

.hero-subtitle {
  font-size: var(--text-lg);
  color: var(--color-gray-300);
  max-width: 560px;
  margin-bottom: var(--space-10);
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-6);
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
}

.scroll-indicator span {
  width: 1px;
  height: 48px;
  background: linear-gradient(
    to bottom,
    var(--color-gray-400) 0%,
    transparent 100%
  );
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%,
  100% {
    opacity: 0.3;
  }
  50% {
    opacity: 0.8;
  }
}

/* --------------------------------------------------------------------------
   Services Section
   -------------------------------------------------------------------------- */
.services {
  background-color: var(--color-white);
  padding: var(--space-24) 0;
}

.services-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-16);
  max-width: var(--max-width-narrow);
}

.service-item {
  padding-left: var(--space-8);
  border-left: 1px solid var(--color-gray-200);
}

.service-item h3 {
  margin-bottom: var(--space-3);
  color: var(--color-black);
}

.service-item p {
  color: var(--color-gray-500);
  font-size: var(--text-base);
  line-height: 1.7;
}

/* --------------------------------------------------------------------------
   Approach Section
   -------------------------------------------------------------------------- */
.approach {
  background-color: var(--color-cream);
  padding: var(--space-24) 0;
}

.approach-content {
  max-width: var(--max-width-narrow);
}

.approach-intro {
  font-size: var(--text-lg);
  color: var(--color-gray-500);
  margin-bottom: var(--space-12);
  line-height: 1.7;
}

.approach-steps {
  display: flex;
  flex-direction: column;
  gap: var(--space-10);
}

.approach-step {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  gap: var(--space-2) var(--space-6);
}

.step-label {
  grid-row: 1 / 3;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-gray-400);
  padding-top: var(--space-1);
}

.approach-step h3 {
  color: var(--color-black);
  margin: 0;
}

.approach-step p {
  color: var(--color-gray-500);
  font-size: var(--text-sm);
  margin: 0;
}

/* --------------------------------------------------------------------------
   About Section
   -------------------------------------------------------------------------- */
.about {
  background-color: var(--color-white);
  padding: var(--space-24) 0;
}

.about-content {
  max-width: var(--max-width-narrow);
}

.about-lead {
  font-size: var(--text-2xl);
  font-weight: 400;
  color: var(--color-black);
  letter-spacing: -0.02em;
  line-height: 1.4;
  margin-bottom: var(--space-6);
}

.about-body {
  font-size: var(--text-base);
  color: var(--color-gray-500);
  line-height: 1.8;
}

/* --------------------------------------------------------------------------
   Contact Section
   -------------------------------------------------------------------------- */
.contact {
  background-color: var(--color-cream);
  padding: var(--space-24) 0;
}

.contact-content {
  max-width: var(--max-width-narrow);
}

.contact-intro {
  margin-bottom: var(--space-8);
}

.contact-intro p {
  font-size: var(--text-lg);
  color: var(--color-gray-500);
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  margin-bottom: var(--space-12);
  padding-bottom: var(--space-12);
  border-bottom: 1px solid var(--color-gray-200);
}

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

.contact-label {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-gray-400);
}

.contact-link {
  font-size: var(--text-base);
  color: var(--color-black);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition);
  width: fit-content;
}

.contact-link:hover {
  border-bottom-color: var(--color-black);
}

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

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}

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

.form-group label {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-gray-400);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  color: var(--color-black);
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--border-radius);
  transition: border-color var(--transition);
}

.form-group input:hover,
.form-group textarea:hover {
  border-color: var(--color-gray-300);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-black);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.contact-form .btn {
  align-self: flex-start;
  margin-top: var(--space-2);
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.site-footer {
  padding: var(--space-8) 0;
  background-color: var(--color-charcoal);
}

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

.copyright {
  font-size: var(--text-sm);
  color: var(--color-gray-400);
}

.location {
  font-size: var(--text-xs);
  color: var(--color-gray-500);
}

/* --------------------------------------------------------------------------
   Responsive — Tablet (768px+)
   -------------------------------------------------------------------------- */
@media (min-width: 768px) {
  :root {
    --nav-height: 80px;
  }

  h1 {
    font-size: var(--text-4xl);
  }

  .nav-links {
    gap: var(--space-10);
  }

  .hero {
    padding: var(--space-32) 0;
  }

  .hero-subtitle {
    font-size: var(--text-xl);
  }

  section {
    padding: var(--space-24) 0;
  }

  .section-header {
    margin-bottom: var(--space-16);
  }

  .services-list {
    gap: var(--space-12);
  }

  .service-item {
    padding-left: var(--space-10);
  }

  .approach-steps {
    flex-direction: row;
    gap: var(--space-12);
  }

  .approach-step {
    flex: 1;
  }

  .contact-methods {
    flex-direction: row;
    gap: var(--space-16);
  }

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

  .footer-content {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

/* --------------------------------------------------------------------------
   Responsive — Desktop (1024px+)
   -------------------------------------------------------------------------- */
@media (min-width: 1024px) {
  h1 {
    font-size: var(--text-5xl);
  }

  .hero-content {
    max-width: 900px;
  }

  section {
    padding: var(--space-32) 0;
  }
}

/* --------------------------------------------------------------------------
   Responsive — Large Desktop (1280px+)
   -------------------------------------------------------------------------- */
@media (min-width: 1280px) {
  h1 {
    font-size: var(--text-6xl);
  }
}

/* --------------------------------------------------------------------------
   Mobile adjustments (small screens)
   -------------------------------------------------------------------------- */
@media (max-width: 639px) {
  .nav-links {
    gap: var(--space-4);
  }

  .nav-links a {
    font-size: var(--text-xs);
  }

  .hero-cta {
    flex-direction: column;
    align-items: flex-start;
  }

  .scroll-indicator {
    display: none;
  }
}

/* --------------------------------------------------------------------------
   Print Styles
   -------------------------------------------------------------------------- */
@media print {
  .site-header {
    position: static;
    background: transparent;
  }

  .hero {
    min-height: auto;
    background: var(--color-white);
    color: var(--color-black);
  }

  .hero h1,
  .hero-eyebrow,
  .hero-subtitle {
    color: var(--color-black);
  }

  .btn,
  .scroll-indicator,
  .contact-form {
    display: none;
  }

  section {
    padding: var(--space-8) 0;
    page-break-inside: avoid;
  }
}

/* --------------------------------------------------------------------------
   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;
  }
}