/* ================================================================
   TrkFit V4 — css/layout.css
   Navbar • Footer • Page Wrappers • Grid System
================================================================ */

/* ── Page wrapper ────────────────────────────────────────────── */
.page-wrap {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

body:not(.app-body) {
  padding-top: var(--nav-h);
}

.page-body {
  flex: 1;
}

/* ── Container ───────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: clamp(16px, 5vw, 32px);
}

.container-sm { max-width: var(--max-w-sm); margin-inline: auto; padding-inline: clamp(16px, 5vw, 32px); }
.container-lg { max-width: var(--max-w-lg); margin-inline: auto; padding-inline: clamp(16px, 5vw, 32px); }

/* ── Section spacing ─────────────────────────────────────────── */
.section {
  padding-block: clamp(48px, 8vw, 96px);
}
.section-sm { padding-block: clamp(32px, 5vw, 56px); }
.section-lg { padding-block: clamp(64px, 10vw, 120px); }

/* ── Section header ──────────────────────────────────────────── */
.section-label {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: var(--ls-wider);
  color: var(--c-accent);
  margin-bottom: var(--sp-3);
}

.section-title {
  font-family: var(--font-head);
  font-size: var(--fs-4xl);
  font-weight: 800;
  line-height: var(--lh-tight);
  letter-spacing: var(--ls-snug);
  color: var(--c-text);
  margin-bottom: var(--sp-4);
}

.section-sub {
  font-size: var(--fs-xl);
  color: var(--c-text2);
  line-height: var(--lh-loose);
  max-width: 600px;
}

.section-header { margin-bottom: clamp(32px, 5vw, 56px); }
.section-header.center { text-align: center; }
.section-header.center .section-sub { margin-inline: auto; }

.highlight { color: var(--c-accent); }

/* ── 2-column grid ───────────────────────────────────────────── */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
}
@media (min-width: 640px) { .grid-2 { grid-template-columns: 1fr 1fr; } }

/* ── 3-column grid ───────────────────────────────────────────── */
.grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 3vw, 28px);
}
@media (min-width: 640px) { .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 900px) { .grid-3 { grid-template-columns: repeat(3, 1fr); } }

/* ── 4-column grid ───────────────────────────────────────────── */
.grid-4 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(12px, 2vw, 24px);
}
@media (min-width: 640px) { .grid-4 { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 900px) { .grid-4 { grid-template-columns: repeat(4, 1fr); } }

/* ================================================================
   NAVBAR
================================================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: var(--z-nav);
  background: rgba(255,255,255,.92);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border-bottom: 1px solid transparent;
  transition: background var(--tr), border-color var(--tr), box-shadow var(--tr);
}

[data-theme="dark"] .navbar {
  background: rgba(8,14,24,.92);
}

.navbar.scrolled {
  background: rgba(255,255,255,.98);
  border-color: var(--c-border);
  box-shadow: var(--sh-sm);
}

[data-theme="dark"] .navbar.scrolled {
  background: rgba(8,14,24,.98);
}

/* Mobile: always solid */
@media (max-width: 899px) {
  .navbar {
    background: rgba(255,255,255,.97) !important;
    border-bottom: 1px solid var(--c-border) !important;
  }
  [data-theme="dark"] .navbar {
    background: rgba(8,14,24,.97) !important;
  }
}

.nav-inner {
  height: 100%;
  max-width: var(--max-w-lg);
  margin-inline: auto;
  padding-inline: clamp(10px, 3vw, 32px);
  display: flex;
  align-items: center;
  gap: clamp(6px, 2vw, var(--sp-4));
  overflow: hidden;
}

/* ── Logo ─────────────────────────────────────────────────────── */
.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 800;
  color: var(--c-text);
  letter-spacing: var(--ls-snug);
  flex-shrink: 0;
  transition: opacity var(--tr);
}

.nav-logo:hover { opacity: .8; }

.nav-logo svg {
  width: 32px;
  height: 32px;
}

.logo-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--c-accent);
  border-radius: 50%;
  margin-left: 1px;
  margin-bottom: 10px;
  animation: logoDot 2s ease-in-out infinite;
}

/* ── Desktop nav links ───────────────────────────────────────── */
.nav-links {
  display: none;
  align-items: center;
  gap: var(--sp-1);
  flex: 1;
  margin-left: var(--sp-4);
}

@media (min-width: 900px) { .nav-links { display: flex; } }

.nav-links a {
  padding: var(--sp-2) var(--sp-3);
  border-radius: var(--r-sm);
  font-size: var(--fs-base);
  font-weight: 600;
  color: var(--c-text2);
  transition: background var(--tr), color var(--tr);
  white-space: nowrap;
}

.nav-links a:hover,
.nav-links a.active {
  background: var(--c-surface2);
  color: var(--c-text);
}

.nav-links a.active { color: var(--c-accent); }

/* ── Nav actions ─────────────────────────────────────────────── */
.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  margin-left: auto;
}

/* Country chip — hidden on mobile */
.country-chip {
  display: none;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  border-radius: var(--r-full);
  font-size: var(--fs-sm);
  font-weight: 600;
  background: var(--c-surface2);
  border: 1.5px solid var(--c-border);
  color: var(--c-text2);
  cursor: pointer;
  transition: all var(--tr);
  white-space: nowrap;
}

.country-chip:hover { border-color: var(--c-accent); color: var(--c-accent); }

@media (min-width: 640px) { .country-chip { display: inline-flex; } }

/* Theme toggle */
.btn-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--r-sm);
  background: var(--c-surface2);
  border: 1.5px solid var(--c-border);
  color: var(--c-text2);
  font-size: 16px;
  transition: all var(--tr);
  flex-shrink: 0;
}

.btn-icon:hover {
  border-color: var(--c-accent);
  color: var(--c-accent);
  background: var(--c-accent-lt);
}

/* Lang toggle */
.lang-toggle {
  padding: 5px 10px;
  border-radius: var(--r-full);
  font-size: var(--fs-sm);
  font-weight: 700;
  background: var(--c-surface2);
  border: 1.5px solid var(--c-border);
  color: var(--c-text2);
  transition: all var(--tr);
  white-space: nowrap;
  flex-shrink: 0;
}

.lang-toggle:hover { border-color: var(--c-blue); color: var(--c-blue); }

/* Nav CTA buttons */
.nav-cta {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
}

/* Hide login ghost on small screens */
@media (max-width: 700px) { .nav-cta .btn-ghost { display: none; } }

/* On very small screens: hide lang toggle to avoid overflow */
@media (max-width: 420px) { .lang-toggle { display: none !important; } }

/* On tiny screens: shrink Get Started button */
@media (max-width: 380px) {
  .nav-cta .btn-sm { padding: 6px 10px; font-size: 11px; }
  .btn-icon { width: 30px; height: 30px; font-size: 14px; }
}

/* On extremely small screens (<360px): hide logo text to save space */
@media (max-width: 360px) {
  .nav-logo-text { display: none; }
  .nav-logo { gap: 0; }
  .nav-logo svg { width: 26px; height: 26px; }
  .logo-dot { display: none; }
}

/* ── Hamburger ───────────────────────────────────────────────── */
.nav-hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  border-radius: var(--r-sm);
  border: 1.5px solid var(--c-border);
  background: var(--c-surface2);
  flex-shrink: 0;
}

@media (min-width: 900px) { .nav-hamburger { display: none; } }

.nav-hamburger span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--c-text2);
  border-radius: 2px;
  transition: transform var(--tr-md), opacity var(--tr), background var(--tr);
  transform-origin: center;
}

.nav-hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

/* ── Mobile nav drawer ───────────────────────────────────────── */
.mobile-nav {
  position: fixed;
  top: var(--nav-h); left: 0; right: 0;
  z-index: var(--z-mob);
  background: var(--c-surface);
  border-bottom: 1px solid var(--c-border);
  padding: var(--sp-3) var(--sp-4) var(--sp-5);
  box-shadow: var(--sh-md);
  display: flex;
  flex-direction: column;
  gap: var(--sp-1);
  transform: translateY(-110%);
  transition: transform var(--tr-md);
  pointer-events: none;
  max-height: calc(100dvh - var(--nav-h));
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.mobile-nav::-webkit-scrollbar { display: none; }
.mobile-nav.open { transform: translateY(0); pointer-events: all; }

@media (min-width: 900px) { .mobile-nav { display: none; } }

.mobile-nav a {
  padding: var(--sp-3) var(--sp-4);
  border-radius: var(--r-sm);
  font-size: var(--fs-md);
  font-weight: 600;
  color: var(--c-text2);
  transition: background var(--tr), color var(--tr);
}

.mobile-nav a:hover,
.mobile-nav a.active {
  background: var(--c-surface2);
  color: var(--c-text);
}

.mobile-nav a.active { color: var(--c-accent); }

.mob-divider {
  height: 1px;
  background: var(--c-border);
  margin-block: var(--sp-2);
}

.mob-nav-footer {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-3) var(--sp-4) 0;
  margin-top: var(--sp-2);
  flex-wrap: wrap;
}

/* ================================================================
   SITE FOOTER
================================================================ */
.site-footer {
  background: var(--c-bg2);
  border-top: 1px solid var(--c-border);
  padding-top: clamp(40px, 6vw, 64px);
}

.footer-inner {
  max-width: var(--max-w-lg);
  margin-inline: auto;
  padding-inline: clamp(16px, 5vw, 32px);
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 40px);
  padding-bottom: clamp(32px, 5vw, 48px);
}

@media (min-width: 480px) {
  .footer-inner { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 860px) {
  .footer-inner { grid-template-columns: 2fr 1fr 1fr 1fr; }
}

.footer-brand { max-width: 280px; }
.footer-brand p {
  font-size: var(--fs-sm);
  color: var(--c-text3);
  line-height: var(--lh-loose);
  margin-top: var(--sp-3);
}

.footer-social {
  display: flex;
  gap: var(--sp-2);
  margin-top: var(--sp-4);
}

.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: var(--r-sm);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  font-size: 14px;
  color: var(--c-text3);
  transition: all var(--tr);
}

.footer-social a:hover {
  border-color: var(--c-accent);
  color: var(--c-accent);
  transform: translateY(-2px);
}

.footer-col h4 {
  font-family: var(--font-head);
  font-size: var(--fs-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: var(--ls-wider);
  color: var(--c-text3);
  margin-bottom: var(--sp-4);
}

.footer-col ul { display: flex; flex-direction: column; gap: var(--sp-2); }

.footer-col ul li a {
  font-size: var(--fs-sm);
  color: var(--c-text3);
  transition: color var(--tr);
}

.footer-col ul li a:hover { color: var(--c-accent); }

.footer-bottom {
  border-top: 1px solid var(--c-border);
  padding: var(--sp-4) clamp(16px, 5vw, 32px);
  max-width: var(--max-w-lg);
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--sp-2);
  font-size: var(--fs-xs);
  color: var(--c-text4);
  width: 100%;
}

/* ── Announcement bar (optional top strip) ───────────────────── */
.ann-bar {
  background: var(--grad-accent);
  color: #fff;
  text-align: center;
  padding: var(--sp-2) var(--sp-4);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: var(--ls-wide);
}