/* ============================================================
   JT Burgers — styles.css
   Mobile-first, hand-written CSS
   ============================================================ */

/* ---------- Design tokens ---------- */
:root {
  /* Colour system: charcoal + mustard + warm cream (burger joint palette) */
  --color-bg: #faf6ee;            /* warm cream */
  --color-bg-alt: #f1e9da;        /* tinted section background */
  --color-ink: #241c14;           /* near-black brown */
  --color-ink-soft: #4c4034;      /* body text */
  --color-brand: #e0972b;         /* mustard / grilled gold */
  --color-brand-deep: #b06a10;    /* darker amber for text on light */
  --color-accent: #a3321f;        /* flame red for small accents */
  --color-surface: #ffffff;
  --color-line: #e3d7c3;

  /* Focus outline */
  --color-focus: #b06a10;

  /* Typography scale */
  --font-display: "Bricolage Grotesque", "Trebuchet MS", sans-serif;
  --font-body: "Inter", "Segoe UI", system-ui, sans-serif;
  --step--1: 0.875rem;
  --step-0: 1rem;
  --step-1: 1.125rem;
  --step-2: 1.5rem;
  --step-3: 2rem;
  --step-4: 2.5rem;
  --step-5: 3.25rem;

  /* Spacing scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2.5rem;
  --space-6: 4rem;
  --space-7: 6rem;

  /* Layout */
  --container: 1100px;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(36, 28, 20, 0.08);
  --header-h: 64px;

  /* Motion */
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --dur: 0.45s;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + var(--space-3));
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.65;
  color: var(--color-ink-soft);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: var(--font-display);
  color: var(--color-ink);
  line-height: 1.15;
  margin: 0 0 var(--space-3);
}

p {
  margin: 0 0 var(--space-3);
}

a {
  color: var(--color-brand-deep);
  text-decoration-thickness: from-font;
}

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

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

:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---------- Layout helpers ---------- */
.section-inner {
  width: min(var(--container), 100% - 2 * var(--space-4));
  margin-inline: auto;
}

section {
  padding-block: var(--space-7);
}

.section-title {
  font-size: var(--step-3);
  font-weight: 800;
  letter-spacing: -0.01em;
}

.section-intro {
  font-size: var(--step-1);
  max-width: 46ch;
  margin-bottom: var(--space-5);
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-line);
}

.header-inner {
  width: min(var(--container), 100% - 2 * var(--space-4));
  margin-inline: auto;
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding-block: var(--space-2);
}

.wordmark {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--step-2);
  color: var(--color-ink);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.wordmark::after {
  content: "";
  display: inline-block;
  width: 0.5em;
  height: 0.5em;
  margin-left: 0.15em;
  border-radius: 50%;
  background: var(--color-brand);
  vertical-align: baseline;
}

/* Hamburger button */
.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: transparent;
  border: 1px solid var(--color-line);
  border-radius: 8px;
  cursor: pointer;
}

.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 3px;
  border-radius: 2px;
  background-color: var(--color-ink);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

/* Mobile nav: hidden by default, slides open when .nav-open is set on header */
.primary-nav-wrap {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-line);
  box-shadow: var(--shadow);
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--dur) var(--ease);
}

.primary-nav {
  list-style: none;
  margin: 0;
  padding: var(--space-3) var(--space-4) var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.primary-nav a {
  display: block;
  padding: var(--space-2) var(--space-2);
  color: var(--color-ink);
  font-weight: 600;
  text-decoration: none;
  border-radius: 8px;
}

.primary-nav a:hover {
  background-color: var(--color-bg-alt);
  color: var(--color-ink);
}

.nav-cta {
  background-color: var(--color-brand);
  color: var(--color-ink) !important;
}

.nav-cta:hover {
  background-color: var(--color-accent);
  color: #fff !important;
}

.nav-open .primary-nav-wrap {
  max-height: 26rem;
}

/* Hamburger -> X when open */
.nav-open .nav-toggle-bar:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}
.nav-open .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}
.nav-open .nav-toggle-bar:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding-block: var(--space-7);
  overflow: hidden;
  background:
    radial-gradient(circle at 12% 15%, rgba(224, 151, 43, 0.22), transparent 42%),
    radial-gradient(circle at 88% 85%, rgba(163, 50, 31, 0.16), transparent 45%),
    linear-gradient(160deg, #faf6ee 0%, #f3e7d0 100%);
}

/* Decorative pattern: subtle dotted "grill marks" layer */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(90deg, rgba(36, 28, 20, 0.045) 0 1px, transparent 1px 90px),
    repeating-linear-gradient(0deg, rgba(36, 28, 20, 0.045) 0 1px, transparent 1px 90px);
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  width: min(var(--container), 100% - 2 * var(--space-4));
  margin-inline: auto;
  max-width: 720px;
}

.hero-kicker {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: var(--step--1);
  font-weight: 600;
  color: var(--color-brand-deep);
  margin-bottom: var(--space-3);
}

.hero-headline {
  font-size: var(--step-4);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-3);
}

.hero-sub {
  font-size: var(--step-1);
  margin-bottom: var(--space-5);
  max-width: 48ch;
}

/* ---------- Buttons ---------- */
.button {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--step-0);
  padding: var(--space-3) var(--space-5);
  border: 2px solid transparent;
  border-radius: 999px;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.2s var(--ease), background-color 0.2s var(--ease),
    color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.button-primary {
  background-color: var(--color-brand);
  color: var(--color-ink);
}

.button-primary:hover {
  background-color: var(--color-accent);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

/* ---------- Sections ---------- */
.about {
  background-color: var(--color-bg);
}

.about p {
  max-width: 62ch;
  font-size: var(--step-1);
}

.services {
  background-color: var(--color-bg-alt);
}

.services-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1fr;
}

.service-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: var(--space-5) var(--space-4);
  box-shadow: var(--shadow);
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.service-card:hover {
  transform: translateY(-4px);
}

.service-icon {
  width: 48px;
  height: 48px;
  color: var(--color-brand-deep);
  margin-bottom: var(--space-3);
}

.service-title {
  font-size: var(--step-2);
  font-weight: 800;
}

/* ---------- Why choose us ---------- */
.why-choose-us {
  background-color: var(--color-bg);
}

.why-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1fr;
}

.why-item {
  border-left: 4px solid var(--color-brand);
  padding-left: var(--space-4);
}

.why-title {
  font-size: var(--step-1);
  font-weight: 800;
}

/* ---------- Contact ---------- */
.contact {
  background-color: var(--color-bg-alt);
}

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

.contact-details {
  font-style: normal;
  margin-bottom: var(--space-4);
}

.contact-location {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 500;
  color: var(--color-ink);
}

.contact-icon {
  width: 24px;
  height: 24px;
  flex: none;
  color: var(--color-accent);
}

.social-links {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin: 0;
  padding: 0;
}

.social-links a {
  font-weight: 600;
  color: var(--color-brand-deep);
  text-decoration: none;
  border-bottom: 2px solid var(--color-brand);
  padding-bottom: 2px;
}

.social-links a:hover {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.contact-form {
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: var(--space-5) var(--space-4);
  box-shadow: var(--shadow);
}

.form-field {
  margin-bottom: var(--space-4);
}

.form-field label {
  display: block;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: var(--space-1);
}

.form-field input,
.form-field textarea {
  width: 100%;
  font: inherit;
  color: var(--color-ink);
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-line);
  border-radius: 8px;
  background-color: var(--color-bg);
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

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

.form-field input:hover,
.form-field textarea:hover {
  border-color: var(--color-brand-deep);
}

.form-field input:focus,
.form-field textarea:focus {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
  border-color: var(--color-focus);
}

.form-note {
  margin: var(--space-3) 0 0;
  font-weight: 600;
  color: var(--color-brand-deep);
  min-height: 1.5em;
}

/* ---------- Footer ---------- */
.site-footer {
  background-color: var(--color-ink);
  color: #d8cdbb;
  padding-block: var(--space-6) var(--space-4);
}

.footer-inner {
  display: grid;
  gap: var(--space-4);
}

.footer-wordmark {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--step-3);
  color: #fff;
  margin: 0;
}

.footer-tagline {
  margin: var(--space-1) 0 0;
  max-width: 34ch;
}

.footer-nav-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin: 0;
  padding: 0;
}

.footer-nav-list a {
  color: #f0e6d4;
  font-weight: 600;
  text-decoration: none;
}

.footer-nav-list a:hover {
  color: var(--color-brand);
  text-decoration: underline;
}

.footer-legal {
  margin: 0;
  font-size: var(--step--1);
  color: #a99c88;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: var(--space-3);
}

/* ---------- Scroll reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.reveal.is-revealed {
  opacity: 1;
  transform: none;
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* ---------- Responsive: larger phones ---------- */
@media (min-width: 560px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ---------- Responsive: tablet ---------- */
@media (min-width: 760px) {
  .why-list {
    grid-template-columns: repeat(2, 1fr);
  }
  .contact-grid {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }
  .hero-headline {
    font-size: var(--step-5);
  }
}

/* ---------- Responsive: desktop nav ---------- */
@media (min-width: 880px) {
  .nav-toggle {
    display: none;
  }

  .primary-nav-wrap {
    position: static;
    max-height: none;
    overflow: visible;
    background: none;
    border: 0;
    box-shadow: none;
  }

  .primary-nav {
    flex-direction: row;
    align-items: center;
    gap: var(--space-2);
    padding: 0;
  }

  .primary-nav a {
    padding: var(--space-1) var(--space-2);
  }

  .nav-cta {
    padding: var(--space-2) var(--space-4);
  }
}

/* ---------- Responsive: wide desktop ---------- */
@media (min-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .why-list {
    grid-template-columns: repeat(4, 1fr);
  }
  .footer-inner {
    grid-template-columns: 1fr auto;
    align-items: start;
  }
  .footer-inner .footer-nav {
    justify-self: end;
  }
  .footer-legal {
    grid-column: 1 / -1;
  }
}