/* ============================================================
   TENACE — Shared Stylesheet
   Website: https://tenace.fit
   "Training for life."
   ============================================================ */

/* ── Google Fonts are loaded via <link> in each HTML file ── */

/* ============================================================
   1. CSS CUSTOM PROPERTIES (Design Tokens)
   ============================================================ */
:root {
  /* Brand colours */
  --color-primary:  #1E4D3B;  /* Forest Green — primary brand colour */
  --color-amber:    #E8913A;  /* Amber — CTA buttons, accents */
  --color-lime:     #A8C26E;  /* Lime Green — highlights, success states */
  --color-bg:       #F5F0E8;  /* Creamy White — page background */
  --color-surface:  #FFFFFF;  /* White — cards, surfaces */
  --color-text:     #3D3D3D;  /* Soft Charcoal — body text */
  --color-muted:    #7A7468;  /* Warm medium gray — secondary text */

  /* Tinted backgrounds (for subtle section fills) */
  --color-lime-tint:    rgba(168, 194, 110, 0.13);
  --color-lime-border:  rgba(168, 194, 110, 0.35);
  --color-primary-tint: rgba(30, 77, 59, 0.07);

  /* Spacing scale */
  --space-xs:  4px;
  --space-sm:  8px;
  --space-md:  16px;
  --space-lg:  24px;
  --space-xl:  40px;
  --space-2xl: 64px;
  --space-3xl: 96px;

  /* Border radii */
  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  16px;
  --radius-xl:  24px;
  --radius-pill: 9999px;

  /* Shadows */
  --shadow-card: 0 2px 16px rgba(30, 77, 59, 0.10);
  --shadow-nav:  0 2px 12px rgba(30, 77, 59, 0.18);

  /* Typography */
  --font-base: 'Inter', system-ui, -apple-system, sans-serif;

  /* Layout */
  --container-max: 1100px;
  --container-pad: clamp(20px, 5vw, 40px);
}

/* ============================================================
   2. CSS RESET
   ============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

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

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

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

ul, ol {
  list-style: none;
}

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

h1, h2, h3, h4, h5, h6 {
  line-height: 1.2;
  font-weight: 700;
}

/* ============================================================
   3. LAYOUT UTILITIES
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
}

/* ============================================================
   4. BUTTON STYLES
   ============================================================ */

/* Primary CTA — amber background, white text */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  background-color: var(--color-amber);
  color: #FFFFFF;
  font-weight: 700;
  font-size: 1rem;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: background-color 0.18s ease, transform 0.12s ease, box-shadow 0.18s ease;
  white-space: nowrap;
  text-decoration: none;
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background-color: #D07B28;  /* Slightly darker amber on hover */
  box-shadow: 0 4px 16px rgba(232, 145, 58, 0.35);
  transform: translateY(-1px);
  outline: none;
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: none;
}

/* Outline variant — forest green border and text */
.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  background-color: transparent;
  color: var(--color-primary);
  font-weight: 600;
  font-size: 1rem;
  padding: 12px 26px;
  border-radius: var(--radius-md);
  border: 2px solid var(--color-primary);
  cursor: pointer;
  transition: background-color 0.18s ease, color 0.18s ease, transform 0.12s ease;
  white-space: nowrap;
  text-decoration: none;
}

.btn-outline:hover,
.btn-outline:focus-visible {
  background-color: var(--color-primary);
  color: #FFFFFF;
  outline: none;
}

/* ============================================================
   5. NAVIGATION
   ============================================================ */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-primary);
  box-shadow: var(--shadow-nav);
}

.site-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
}

/* TENACE wordmark in the nav */
.site-nav__logo {
  font-size: 1.375rem;
  font-weight: 800;
  color: #FFFFFF;
  letter-spacing: 0.06em;
  text-decoration: none;
  line-height: 1;
}

.site-nav__logo:hover {
  opacity: 0.9;
}

/* Right-side nav actions */
.site-nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

/* Nav CTA button — amber, but slightly smaller */
.site-nav__cta {
  font-size: 0.9rem;
  padding: 10px 22px;
}

/* ============================================================
   6. FOOTER
   ============================================================ */
.site-footer {
  background-color: var(--color-primary);
  color: #FFFFFF;
  padding: 48px var(--container-pad);
}

.site-footer__inner {
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: var(--space-xl);
  align-items: start;
}

/* Column 1 — logo + tagline */
.site-footer__brand-name {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-sm);
}

.site-footer__tagline {
  font-size: 0.9rem;
  opacity: 0.75;
  font-style: italic;
}

/* Column headings */
.site-footer__heading {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.6;
  margin-bottom: var(--space-md);
}

/* Footer links */
.site-footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.site-footer__links a {
  font-size: 0.9rem;
  opacity: 0.8;
  transition: opacity 0.15s ease;
}

.site-footer__links a:hover {
  opacity: 1;
  text-decoration: underline;
}

/* Bottom copyright bar */
.site-footer__bottom {
  max-width: var(--container-max);
  margin: var(--space-xl) auto 0;
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  text-align: center;
  font-size: 0.82rem;
  opacity: 0.65;
}

/* ============================================================
   7. FORM ELEMENTS (shared across pages)
   ============================================================ */
.form-input {
  flex: 1;
  min-width: 0;          /* Allows shrinking inside flex containers */
  height: 50px;
  padding: 0 var(--space-md);
  border: 2px solid rgba(30, 77, 59, 0.20);
  border-radius: var(--radius-md);
  background-color: var(--color-surface);
  color: var(--color-text);
  font-size: 0.95rem;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
  outline: none;
}

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

.form-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(30, 77, 59, 0.10);
}

/* ============================================================
   8. PROSE / LEGAL PAGE STYLES
   Used on terms.html and privacy.html
   ============================================================ */
.prose-page {
  padding: var(--space-3xl) var(--container-pad);
  min-height: calc(100vh - 64px - 260px); /* Fill space between nav and footer */
}

.prose-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-xl);
  padding: clamp(32px, 6vw, 56px);
  max-width: 760px;
  margin: 0 auto;
  box-shadow: var(--shadow-card);
}

.prose-card h1 {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  color: var(--color-primary);
  margin-bottom: var(--space-xs);
}

.prose-card .prose-meta {
  font-size: 0.875rem;
  color: var(--color-muted);
  margin-bottom: var(--space-2xl);
}

.prose-card h2 {
  font-size: 1.15rem;
  color: var(--color-primary);
  margin-top: var(--space-xl);
  margin-bottom: var(--space-sm);
  padding-bottom: var(--space-xs);
  border-bottom: 2px solid var(--color-lime-border);
}

.prose-card p {
  font-size: 0.95rem;
  color: var(--color-text);
  line-height: 1.75;
  margin-bottom: var(--space-md);
}

.prose-card p:last-child {
  margin-bottom: 0;
}

.prose-card ul {
  list-style: disc;
  padding-left: var(--space-xl);
  margin-bottom: var(--space-md);
}

.prose-card ul li {
  font-size: 0.95rem;
  color: var(--color-text);
  line-height: 1.75;
  margin-bottom: var(--space-xs);
}

.prose-card a {
  color: var(--color-primary);
  text-decoration: underline;
  font-weight: 500;
}

.prose-card a:hover {
  color: var(--color-amber);
}

/* ============================================================
   9. RESPONSIVE — MOBILE BREAKPOINT (≤ 768px)
   ============================================================ */
@media (max-width: 768px) {
  /* Footer collapses to single column */
  .site-footer__inner {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  /* Nav CTA text shortens on very small screens */
  .site-nav__cta {
    font-size: 0.85rem;
    padding: 9px 16px;
  }

  /* Prose card removes excess padding on mobile */
  .prose-card {
    border-radius: var(--radius-lg);
  }

  .prose-page {
    padding: var(--space-xl) var(--container-pad);
  }
}

@media (max-width: 480px) {
  .site-nav__logo {
    font-size: 1.2rem;
  }
}