/* =========================================================
   VitaCore Wellness - Global Stylesheet
   Mobile-first, responsive, custom CSS (no frameworks)
   ========================================================= */

/* ---------- Reset & Base ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-primary: #1f7a4c;
  --color-primary-dark: #145c38;
  --color-accent: #f5a623;
  --color-bg: #ffffff;
  --color-bg-alt: #f4f8f5;
  --color-text: #1f2d25;
  --color-muted: #5c6b63;
  --color-border: #e2e8e4;
  --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 8px 20px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.10);
  --radius: 10px;
  --radius-lg: 16px;
  --max-width: 1180px;
  --transition: 0.25s ease;
  --font-body: "Inter", "Helvetica Neue", Arial, sans-serif;
  --font-head: "Poppins", "Helvetica Neue", Arial, sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

a:hover {
  color: var(--color-primary-dark);
}

h1, h2, h3, h4 {
  font-family: var(--font-head);
  color: var(--color-text);
  line-height: 1.25;
  font-weight: 700;
}

h1 { font-size: 2rem; }
h2 { font-size: 1.6rem; }
h3 { font-size: 1.2rem; }

p { color: var(--color-muted); }

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.section {
  padding: 3rem 0;
}

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

.section-title {
  text-align: center;
  margin-bottom: 0.5rem;
}

.section-subtitle {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 2.5rem;
  color: var(--color-muted);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 0.75rem 1.4rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition);
  text-align: center;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-primary);
  color: #fff;
}

.btn-accent {
  background: var(--color-accent);
  color: #fff;
}

.btn-accent:hover {
  background: #e09616;
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-lg {
  padding: 1rem 1.8rem;
  font-size: 1.05rem;
}

/* ---------- Header / Navigation ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--color-border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--color-text);
}

.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 700;
}

.nav-toggle {
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: transform var(--transition), opacity var(--transition);
}

.nav-menu {
  list-style: none;
  display: none;
  flex-direction: column;
  gap: 0.5rem;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: #fff;
  border-bottom: 1px solid var(--color-border);
  padding: 1rem 1.25rem 1.5rem;
  box-shadow: var(--shadow-sm);
}

.nav-menu.open {
  display: flex;
}

.nav-menu a {
  display: block;
  padding: 0.6rem 0;
  color: var(--color-text);
  font-weight: 500;
  border-bottom: 1px solid var(--color-border);
}

.nav-menu a.active,
.nav-menu a:hover {
  color: var(--color-primary);
}

.nav-menu .btn {
  margin-top: 0.5rem;
}

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(135deg, #e9f4ee 0%, #f7fbf5 100%);
  padding: 3rem 0 3.5rem;
}

.hero-inner {
  display: grid;
  gap: 2rem;
  align-items: center;
}

.hero-eyebrow {
  display: inline-block;
  background: rgba(31, 122, 76, 0.12);
  color: var(--color-primary-dark);
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.hero h1 {
  font-size: 2.1rem;
  margin-bottom: 1rem;
}

.hero p.lead {
  font-size: 1.05rem;
  margin-bottom: 1.75rem;
  max-width: 540px;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.hero-visual {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  aspect-ratio: 4 / 3;
  display: grid;
  place-items: center;
  color: var(--color-muted);
  font-style: italic;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(31, 122, 76, 0.18), transparent 45%),
    radial-gradient(circle at 80% 70%, rgba(245, 166, 35, 0.18), transparent 45%),
    linear-gradient(135deg, #f7fbf5, #fff);
}

/* ---------- Feature Grid ---------- */
.grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: 1fr;
}

.card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: transform var(--transition), box-shadow var(--transition);
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.card .icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(31, 122, 76, 0.12);
  color: var(--color-primary);
  display: grid;
  place-items: center;
  font-weight: 700;
  margin-bottom: 0.9rem;
}

.card h3 {
  margin-bottom: 0.4rem;
}

/* ---------- Stats Strip ---------- */
.stats {
  background: var(--color-primary);
  color: #fff;
  padding: 2rem 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  text-align: center;
}

.stat-number {
  font-family: var(--font-head);
  font-size: 2rem;
  font-weight: 700;
}

.stat-label {
  opacity: 0.9;
  font-size: 0.9rem;
}

/* ---------- Plan / Pricing Cards ---------- */
.plans {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 1fr;
}

.plan-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative;
}

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

.plan-card.featured {
  border: 2px solid var(--color-primary);
}

.plan-card.featured::before {
  content: "Most Popular";
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: var(--color-accent);
  color: #fff;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.plan-header {
  background: linear-gradient(135deg, #eaf4ed, #fff5e0);
  padding: 2rem 1.5rem;
  text-align: center;
}

.plan-header .plan-duration {
  font-size: 0.85rem;
  color: var(--color-primary);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.plan-header h3 {
  font-size: 1.5rem;
  margin-bottom: 0.4rem;
}

.plan-price {
  font-family: var(--font-head);
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0.75rem 0 0.25rem;
}

.plan-price .period {
  font-size: 0.9rem;
  color: var(--color-muted);
  font-weight: 500;
}

.plan-body {
  padding: 1.75rem 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.plan-features {
  list-style: none;
  margin-bottom: 1.5rem;
}

.plan-features li {
  padding: 0.5rem 0;
  padding-left: 1.75rem;
  position: relative;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
}

.plan-features li:last-child {
  border-bottom: none;
}

.plan-features li::before {
  content: "\2713";
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 20px;
  height: 20px;
  background: var(--color-primary);
  color: #fff;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 0.7rem;
  font-weight: 700;
}

.plan-cta {
  margin-top: auto;
}

/* ---------- CTA Banner ---------- */
.cta-banner {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 2.25rem 1.5rem;
  text-align: center;
}

.cta-banner h2 {
  color: #fff;
  margin-bottom: 0.5rem;
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 1.25rem;
}

.cta-banner .btn-primary {
  background: var(--color-accent);
}

.cta-banner .btn-primary:hover {
  background: #e09616;
}

/* ---------- Forms ---------- */
.form {
  display: grid;
  gap: 1rem;
  max-width: 640px;
  margin: 0 auto;
}

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

.form label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: var(--color-text);
}

.form input,
.form select,
.form textarea {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 1rem;
  background: #fff;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form input:focus,
.form select:focus,
.form textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(31, 122, 76, 0.15);
}

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

/* ---------- Contact Info Block ---------- */
.info-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
  margin-bottom: 2rem;
}

.info-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.25rem;
  text-align: center;
}

.info-card h4 {
  margin-bottom: 0.3rem;
  color: var(--color-primary);
}

/* ---------- Page Header (inner pages) ---------- */
.page-header {
  background: linear-gradient(135deg, #e9f4ee 0%, #f7fbf5 100%);
  padding: 3rem 0 2.5rem;
  text-align: center;
}

.page-header h1 {
  margin-bottom: 0.5rem;
}

.breadcrumb {
  font-size: 0.9rem;
  color: var(--color-muted);
}

/* ---------- Timeline (program weeks) ---------- */
.timeline {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}

.timeline-item {
  background: #fff;
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius);
  padding: 1.25rem 1.25rem 1.25rem 1.5rem;
  box-shadow: var(--shadow-sm);
}

.timeline-item h4 {
  color: var(--color-primary);
  margin-bottom: 0.3rem;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.timeline-item h3 {
  margin-bottom: 0.4rem;
}

/* ---------- FAQ ---------- */
.faq {
  max-width: 780px;
  margin: 0 auto;
  display: grid;
  gap: 0.75rem;
}

.faq details {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
}

.faq summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--color-text);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq summary::-webkit-details-marker { display: none; }

.faq summary::after {
  content: "+";
  font-size: 1.4rem;
  color: var(--color-primary);
  font-weight: 700;
  line-height: 1;
}

.faq details[open] summary::after {
  content: "\2212";
}

.faq details p {
  margin-top: 0.6rem;
  color: var(--color-muted);
}

/* ---------- Footer ---------- */
.site-footer {
  background: #122a1e;
  color: #cfd8d3;
  padding: 2.5rem 0 1.25rem;
  margin-top: 3rem;
}

.footer-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: 1fr;
  margin-bottom: 2rem;
}

.site-footer h4 {
  color: #fff;
  font-size: 1rem;
  margin-bottom: 0.85rem;
}

.site-footer ul {
  list-style: none;
}

.site-footer li {
  margin-bottom: 0.45rem;
}

.site-footer a {
  color: #cfd8d3;
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 1rem;
  text-align: center;
  font-size: 0.85rem;
  color: #9cada3;
}

/* ---------- Utility ---------- */
.text-center { text-align: center; }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }

/* =========================================================
   Responsive breakpoints
   ========================================================= */

/* Tablet */
@media (min-width: 640px) {
  h1 { font-size: 2.5rem; }
  h2 { font-size: 2rem; }

  .section { padding: 4rem 0; }

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

  .grid { grid-template-columns: repeat(2, 1fr); }

  .stats-grid { grid-template-columns: repeat(4, 1fr); }

  .info-grid { grid-template-columns: repeat(3, 1fr); }

  .footer-grid { grid-template-columns: repeat(2, 1fr); }

  .hero h1 { font-size: 2.75rem; }
}

/* Desktop */
@media (min-width: 960px) {
  .nav-toggle { display: none; }

  .nav-menu {
    display: flex;
    flex-direction: row;
    position: static;
    background: transparent;
    border: none;
    padding: 0;
    box-shadow: none;
    align-items: center;
    gap: 1.75rem;
  }

  .nav-menu a {
    padding: 0;
    border-bottom: none;
  }

  .nav-menu .btn { margin: 0; }

  .hero-inner { grid-template-columns: 1.1fr 1fr; gap: 3rem; }

  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }

  .plans { grid-template-columns: repeat(2, 1fr); gap: 2rem; }

  .timeline { grid-template-columns: repeat(2, 1fr); }

  .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; }

  .cta-banner { padding: 3rem 2rem; }

  h1 { font-size: 3rem; }
  .hero h1 { font-size: 3.25rem; }
}