/* ============================================================
   FLOW FLOW — styles.css
   One-page site. Palette + type sampled directly from the
   Bach & Brew reference mockup.
   Sections: Reset → Tokens → Typography → Buttons → Nav →
             Footer → Utilities → Responsive
============================================================ */


/* ============================================================
   RESET + BASE
============================================================ */

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--cream);
  color: var(--ink);
  font-family: 'Libre Baskerville', Georgia, serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
  list-style: none;
}


/* ============================================================
   DESIGN TOKENS — sampled from the reference mockup
============================================================ */

:root {
  --bg:           #FFFFFF;          /* card / panel fills */
  --cream:        #F6F3E2;          /* page background */
  --teal:         #006884;          /* nav bar, buttons, links */
  --teal-dark:    #005066;          /* teal hover state */
  --border:       #B7AD8E;          /* hairline borders, card outlines */
  --icon-stroke:  #45412F;          /* hand-drawn icon line color */
  --ink:          #26221B;          /* headings, body text */
  --ink-soft:     #6B6355;          /* muted body text */

  --font-heading: 'Playfair Display SC', Georgia, serif;
  --font-body:    'Lora', Georgia, serif;

  --section-pad-v:      88px;
  --section-pad-v-mob:  52px;
  --content-max:        1180px;
  --content-pad:        48px;
  --content-pad-mob:    22px;

  --radius-card:  16px;
  --radius-pill:  100px;
  --transition:   0.2s ease;
}


/* ============================================================
   TYPOGRAPHY
============================================================ */

h1, h2, h3 {
  font-family: var(--font-heading);
  font-weight: 400;
  color: var(--ink);
  line-height: 1.12;
}

h1 { font-size: clamp(2.8rem, 6vw, 5rem); }
h2 { font-size: clamp(1.9rem, 3.6vw, 2.6rem); }
h3 { font-size: 1.2rem; letter-spacing: 0.01em; }

p {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--ink);
}

/* Small-caps section label */
.label {
  font-family: var(--font-body);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 0.85rem;
}


/* ============================================================
   BUTTONS — one teal pill, flat, matching the mockup
============================================================ */

.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  padding: 0.85em 2em;
  border-radius: var(--radius-pill);
  border: none;
  background: var(--teal);
  color: #FFFFFF;
  cursor: pointer;
  transition: background-color var(--transition);
}

.btn:hover {
  background: var(--teal-dark);
}


/* ============================================================
   NAV
============================================================ */

.nav {
  position: relative;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 0 var(--content-pad);
  height: 64px;
  background: var(--teal);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 9px;
  flex-shrink: 0;
  transition: opacity var(--transition);
}

.nav__logo:hover {
  opacity: 0.8;
}

.nav__brand-logo {
  height: 40px;
  width: auto;
  display: block;
  flex-shrink: 0;
  filter: brightness(0) invert(1);
}

/* Nav links — centered between logo and CTA */
.nav__links {
  display: flex;
  align-items: center;
  gap: 2.25rem;
  margin: 0 auto;
}

.nav__link {
  position: relative;
  font-family: var(--font-body);
  font-style: italic;
  font-size: 0.85rem;
  color: #FFFFFF;
  opacity: 0.82;
  transition: opacity var(--transition);
}

.nav__link:hover {
  opacity: 1;
}

/* CTA button in nav — white pill on the teal bar */
.nav__cta {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.78rem;
  letter-spacing: 0.03em;
  padding: 0.5em 1.35em;
  border-radius: var(--radius-pill);
  border: none;
  background: #FFFFFF;
  color: var(--teal);
  transition: opacity var(--transition);
}

.nav__cta:hover {
  opacity: 0.85;
}

/* Hamburger toggle — hidden on desktop */
.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 2px;
  flex-shrink: 0;
}

.nav__toggle span {
  display: block;
  width: 100%;
  height: 1.5px;
  background: #FFFFFF;
  border-radius: 2px;
  transition: transform 0.26s ease, opacity 0.26s ease, background 0.26s ease;
  transform-origin: center;
}

.nav__toggle[aria-expanded="true"] span {
  background: var(--ink);
}

.nav__toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7.5px) rotate(45deg);
}
.nav__toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.nav__toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7.5px) rotate(-45deg);
}


/* ============================================================
   FOOTER
============================================================ */

.footer {
  background-color: var(--ink);
  padding: 48px var(--content-pad) 26px;
}

.footer__inner {
  max-width: var(--content-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-rows: auto auto auto;
  gap: 1.25rem 4rem;
  align-items: start;
}

.footer__brand {
  grid-column: 1;
  grid-row: 1;
}

.footer__logo {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 0.75rem;
}

.footer__brand-logo {
  height: 30px;
  width: auto;
  display: block;
  filter: brightness(0) invert(1);
  opacity: 0.75;
}

.footer__tagline {
  font-family: var(--font-body);
  font-style: italic;
  font-size: 0.85rem;
  color: #FFFFFF;
  opacity: 0.55;
}

.footer__nav {
  grid-column: 2;
  grid-row: 1;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  align-items: flex-end;
}

.footer__link {
  font-family: var(--font-body);
  font-size: 0.8rem;
  color: var(--bg);
  opacity: 0.55;
  transition: opacity var(--transition);
}

.footer__link:hover {
  opacity: 1;
}

.footer__cta-line {
  grid-column: 1 / -1;
  grid-row: 2;
  font-family: var(--font-heading);
  font-size: clamp(1.25rem, 2.8vw, 1.7rem);
  color: var(--bg);
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
}

.footer__copy {
  grid-column: 1 / -1;
  grid-row: 3;
  font-family: var(--font-body);
  font-size: 0.76rem;
  color: #FFFFFF;
  opacity: 0.4;
  padding-top: 1.25rem;
}


/* ============================================================
   UTILITIES
============================================================ */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}


/* ============================================================
   SCROLL ANIMATIONS (main.js watches .fade-up)
============================================================ */

.fade-up {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.is-visible {
  opacity: 1;
  transform: none;
}

.fade-up--d1 { transition-delay: 0.08s; }
.fade-up--d2 { transition-delay: 0.16s; }
.fade-up--d3 { transition-delay: 0.26s; }


/* ============================================================
   RESPONSIVE — MOBILE (≤ 768px)
============================================================ */

@media (max-width: 768px) {

  :root {
    --section-pad-v-mob: 48px;
    --content-pad-mob:   20px;
  }

  html { font-size: 15px; }

  p { line-height: 1.7; }

  .btn {
    padding: 1em 1.9em;
    font-size: 0.85rem;
    min-height: 46px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .nav {
    padding: 0 var(--content-pad-mob);
    height: 60px;
    gap: 0;
  }

  .nav__brand-logo {
    height: 30px;
  }

  .nav__cta {
    display: none;
  }

  .nav__toggle {
    display: flex;
    margin-left: auto;
    position: relative;
    z-index: 200;
  }

  .nav__logo {
    position: relative;
    z-index: 200;
  }

  .nav__links {
    display: none;
  }

  .nav__links--open {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    position: fixed;
    inset: 0;
    z-index: 195;
    background: var(--cream);
    padding: 72px var(--content-pad-mob) 120px;
    gap: 0;
    overflow: hidden;
    animation: nav-reveal 0.4s cubic-bezier(0.22, 1, 0.36, 1) forwards;
  }

  @keyframes nav-reveal {
    from { clip-path: inset(0 0 100% 0); }
    to   { clip-path: inset(0 0 0% 0); }
  }

  .nav__links--open .nav__link {
    display: block;
    width: auto;
    padding: 0.55rem 0;
    font-family: var(--font-heading);
    font-size: clamp(2rem, 10vw, 2.6rem);
    font-style: normal;
    color: var(--ink);
    opacity: 0;
    animation: link-rise 0.36s cubic-bezier(0.22, 1, 0.36, 1) both;
  }

  .nav__links--open li:nth-child(1) .nav__link { animation-delay: 0.18s; }
  .nav__links--open li:nth-child(2) .nav__link { animation-delay: 0.24s; }

  @keyframes link-rise {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 0.9; transform: none; }
  }

  .nav__links--open .nav__link:hover { opacity: 1 !important; }

  .nav__links--open ~ .nav__cta {
    display: block;
    position: fixed;
    bottom: 32px;
    left: var(--content-pad-mob);
    right: var(--content-pad-mob);
    width: auto;
    z-index: 196;
    text-align: center;
    padding: 1em 1.5em;
    font-size: 0.82rem;
    background: var(--teal);
    color: #FFFFFF;
    animation: link-rise 0.36s cubic-bezier(0.22, 1, 0.36, 1) 0.3s both;
  }

  .footer {
    padding: 36px var(--content-pad-mob) 24px;
  }

  .footer__inner {
    grid-template-columns: 1fr;
    gap: 1.15rem;
  }

  .footer__nav {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: flex-start;
    gap: 0.65rem 1.1rem;
  }

  .footer__brand-logo {
    height: 24px;
  }

}