/* ==========================================================================
   JT Burgurs — styles.css
   Palette: warm retro diner (burger-shop energy) — mustard, tomato, cream
   ========================================================================== */

:root {
  /* Color system */
  --color-ink: #241a12;          /* deep brown-black text */
  --color-ink-soft: #5c4a3a;     /* secondary text */
  --color-cream: #faf3e7;        /* page background */
  --color-cream-deep: #f2e6d0;   /* tinted sections */
  --color-mustard: #e8a11b;      /* primary accent */
  --color-mustard-deep: #b87800;/* accessible accent for text/borders */
  --color-tomato: #c8442c;       /* secondary accent */
  --color-tomato-deep: #a3301d;
  --color-white: #ffffff;

  /* Semantic */
  --bg: var(--color-cream);
  --bg-tint: var(--color-cream-deep);
  --text: var(--color-ink);
  --text-soft: var(--color-ink-soft);
  --accent: var(--color-mustard);
  --accent-deep: var(--color-mustard-deep);
  --link: var(--color-tomato-deep);

  /* Typography */
  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Public Sans", "Helvetica Neue", Arial, sans-serif;
  --step--1: clamp(0.85rem, 0.8rem + 0.25vw, 0.95rem);
  --step-0: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --step-1: clamp(1.25rem, 1.1rem + 0.6vw, 1.5rem);
  --step-2: clamp(1.55rem, 1.3rem + 1.2vw, 2.1rem);
  --step-3: clamp(2.1rem, 1.6rem + 2.4vw, 3.4rem);
  --step-4: clamp(2.6rem, 1.8rem + 4vw, 4.5rem);

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

  /* Layout & misc */
  --container: 1100px;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 10px 30px rgba(36, 26, 18, 0.12);
  --transition: 200ms ease;
}

/* ---------- Resets & base ---------- */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

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

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

a {
  color: var(--link);
}

:focus-visible {
  outline: 3px solid var(--accent-deep);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ---------- Container helpers ---------- */

.header-inner,
.hero-inner,
.about-inner,
.services-inner,
.why-inner,
.contact-inner,
.footer-inner {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-3);
}

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: rgba(250, 243, 231, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(36, 26, 18, 0.12);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  min-height: 68px;
}

.wordmark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--step-1);
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.wordmark:hover {
  color: var(--accent-deep);
}

/* Hamburger */
.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: none;
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

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

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

/* Mobile nav panel */
.primary-nav-wrap {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: var(--bg);
  border-bottom: 1px solid rgba(36, 26, 18, 0.15);
  box-shadow: var(--shadow);
  display: none;
}

#site-header.nav-open .primary-nav-wrap {
  display: block;
}

#site-header.nav-open .nav-toggle-bar:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

#site-header.nav-open .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

#site-header.nav-open .nav-toggle-bar:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

.primary-nav {
  list-style: none;
  display: flex;
  flex-direction: column;
  padding: var(--space-2) var(--space-3) var(--space-3);
}

.nav-link {
  display: block;
  padding: var(--space-2) var(--space-1);
  font-weight: 500;
  font-size: var(--step-0);
  color: var(--text);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background-color var(--transition);
}

.nav-link:hover {
  color: var(--accent-deep);
  background-color: var(--bg-tint);
}

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

  .primary-nav-wrap {
    position: static;
    display: block;
    background: none;
    border: 0;
    box-shadow: none;
  }

  .primary-nav {
    flex-direction: row;
    gap: var(--space-1);
    padding: 0;
  }

  .nav-link {
    padding: 0.4rem 0.75rem;
  }
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--step-0);
  padding: 0.8rem 1.8rem;
  border-radius: 999px;
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background-color var(--transition), color var(--transition),
    transform var(--transition), border-color var(--transition);
}

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

.btn-primary:hover {
  background-color: var(--color-tomato-deep);
  transform: translateY(-2px);
}

/* ---------- Sections ---------- */

.hero,
.about,
.services,
.why-choose-us,
.contact {
  padding-block: var(--space-6);
}

.section-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--step-2);
  color: var(--text);
  margin-bottom: var(--space-3);
}

.section-intro {
  color: var(--text-soft);
  font-size: var(--step-1);
  max-width: 46ch;
  margin-bottom: var(--space-4);
}

/* ---------- Hero ---------- */

.hero {
  padding-block: calc(var(--space-6) + 2rem);
  background:
    radial-gradient(circle at 12% 18%, rgba(232, 161, 27, 0.28) 0%, transparent 40%),
    radial-gradient(circle at 88% 78%, rgba(200, 68, 44, 0.22) 0%, transparent 45%),
    repeating-linear-gradient(
      135deg,
      transparent 0 34px,
      rgba(184, 120, 0, 0.06) 34px 68px
    ),
    var(--bg);
  border-bottom: 1px solid rgba(36, 26, 18, 0.1);
}

.hero-inner {
  max-width: 720px;
}

.hero-eyebrow {
  display: inline-block;
  font-size: var(--step--1);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--accent-deep);
  background-color: rgba(232, 161, 27, 0.18);
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  margin-bottom: var(--space-3);
}

.hero-headline {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--step-4);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-3);
}

.hero-valueprop {
  font-size: var(--step-1);
  color: var(--text-soft);
  max-width: 50ch;
  margin-bottom: var(--space-4);
}

/* ---------- About ---------- */

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

.about-inner {
  max-width: 760px;
}

.about-paragraph {
  color: var(--text-soft);
  margin-bottom: var(--space-2);
}

.about-paragraph:last-child {
  margin-bottom: 0;
}

/* ---------- Services ---------- */

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

.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

.service-card {
  background-color: var(--color-white);
  border: 1px solid rgba(36, 26, 18, 0.1);
  border-radius: var(--radius);
  padding: var(--space-3);
  box-shadow: 0 4px 14px rgba(36, 26, 18, 0.06);
  transition: transform var(--transition), box-shadow var(--transition);
}

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

.service-icon {
  width: 40px;
  height: 40px;
  color: var(--accent-deep);
  margin-bottom: var(--space-2);
}

.service-title {
  font-family: var(--font-display);
  font-size: var(--step-1);
  font-weight: 600;
  margin-bottom: var(--space-1);
}

.service-desc {
  color: var(--text-soft);
  font-size: var(--step-0);
}

@media (min-width: 600px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ---------- Why choose us ---------- */

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

.why-list {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

.why-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  background-color: var(--bg-tint);
  border-radius: var(--radius);
  padding: var(--space-3);
}

.why-icon {
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  color: var(--color-tomato);
}

.why-title {
  font-family: var(--font-display);
  font-size: var(--step-1);
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.why-desc {
  color: var(--text-soft);
}

@media (min-width: 768px) {
  .why-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ---------- Contact ---------- */

.contact {
  background-color: var(--bg-tint);
}

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

@media (min-width: 820px) {
  .contact-grid {
    grid-template-columns: 1.2fr 0.8fr;
    gap: var(--space-5);
  }
}

.contact-form {
  background-color: var(--color-white);
  border: 1px solid rgba(36, 26, 18, 0.1);
  border-radius: var(--radius);
  padding: var(--space-3);
  box-shadow: 0 4px 14px rgba(36, 26, 18, 0.06);
}

.form-field {
  margin-bottom: var(--space-3);
}

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

.form-input {
  width: 100%;
  font-family: var(--font-body);
  font-size: var(--step-0);
  color: var(--text);
  padding: 0.7rem 0.9rem;
  background-color: var(--bg);
  border: 2px solid rgba(36, 26, 18, 0.2);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition);
}

.form-input::placeholder {
  color: rgba(92, 74, 58, 0.6);
}

.form-input:hover {
  border-color: rgba(36, 26, 18, 0.45);
}

.form-input:focus {
  outline: none;
  border-color: var(--accent-deep);
  background-color: var(--color-white);
}

.form-textarea {
  min-height: 130px;
  resize: vertical;
}

.form-note {
  margin-top: var(--space-2);
  font-size: var(--step--1);
  font-weight: 600;
  color: var(--accent-deep);
  min-height: 1.2em;
}

.contact-subtitle {
  font-family: var(--font-display);
  font-size: var(--step-1);
  font-weight: 600;
  margin-bottom: var(--space-1);
}

.contact-text {
  color: var(--text-soft);
  margin-bottom: var(--space-3);
}

.social-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.social-link {
  display: inline-block;
  font-weight: 600;
  color: var(--link);
  text-decoration: none;
  padding: 0.3rem 0;
  border-bottom: 2px solid transparent;
  transition: border-color var(--transition), color var(--transition);
}

.social-link:hover {
  color: var(--accent-deep);
  border-bottom-color: var(--accent);
}

/* ---------- Footer ---------- */

.site-footer {
  background-color: var(--color-ink);
  color: rgba(250, 243, 231, 0.85);
  padding-block: var(--space-5) var(--space-3);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-2);
}

.footer-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--step-1);
  color: var(--color-cream);
}

.footer-tagline {
  font-size: var(--step--1);
  color: rgba(250, 243, 231, 0.7);
}

.footer-nav-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-3);
}

.footer-link {
  color: rgba(250, 243, 231, 0.85);
  text-decoration: none;
  font-size: var(--step--1);
  font-weight: 500;
  transition: color var(--transition);
}

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

.footer-copyright {
  margin-top: var(--space-2);
  font-size: var(--step--1);
  color: rgba(250, 243, 231, 0.55);
}

@media (min-width: 768px) {
  .footer-inner {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: baseline;
    justify-content: space-between;
    gap: var(--space-3);
  }

  .footer-copyright {
    margin-top: 0;
  }
}

/* ---------- Scroll reveal ---------- */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 600ms ease, transform 600ms ease;
}

.reveal.is-revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }

  .btn-primary:hover {
    transform: none;
  }

  .service-card:hover {
    transform: none;
  }
}