/* =============================================================
   DANCEFLOW — SHARED DESIGN SYSTEM
   Link this file in every subpage <head> alongside cookie.css
   Example: <link rel="stylesheet" href="/design-system.css">
   ============================================================= */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,700;0,900;1,700&family=Inter:wght@300;400;500;600;700&display=swap');

/* ---- Design Tokens ---- */
:root {
  --c-yellow:        #DCB040;
  --c-yellow-hover:  #C89A28;
  --c-yellow-active: #B08A20;
  --c-black:         #0A0A0A;
  --c-charcoal:      #1C1C1C;
  --c-dark:          #2A2A2A;
  --c-white:         #FFFFFF;
  --c-cream:         #F8F5F0;
  --c-warm-gray:     #EBEBEB;
  --c-gray-mid:      #888888;
  --c-gray-dark:     #444444;
  --c-accent:        #7A1515;

  --ff-display: 'Playfair Display', Georgia, serif;
  --ff-body:    'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  --fs-display: clamp(2.5rem, 6vw, 4.5rem);
  --fs-h2:      clamp(1.75rem, 4vw, 3rem);
  --fs-h3:      clamp(1.25rem, 2.5vw, 2rem);
  --fs-h4:      1.25rem;
  --fs-body:    1.0625rem;
  --fs-sm:      0.875rem;
  --fs-xs:      0.75rem;

  --space-1:4px; --space-2:8px; --space-3:12px; --space-4:16px;
  --space-5:24px; --space-6:32px; --space-7:48px; --space-8:64px;
  --space-9:80px; --space-10:120px;

  --max-width:   1280px;
  --pad-x:       clamp(1.25rem, 4vw, 6rem);
  --radius-sm:   4px;
  --radius-md:   12px;

  --shadow-sm: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,.12), 0 2px 6px rgba(0,0,0,.08);
  --shadow-lg: 0 12px 40px rgba(0,0,0,.18), 0 4px 12px rgba(0,0,0,.10);

  --t-fast:   150ms cubic-bezier(.25,.1,.25,1);
  --t-normal: 250ms cubic-bezier(.25,.1,.25,1);
  --t-slow:   400ms cubic-bezier(.25,.1,.25,1);
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--ff-body);
  font-size: var(--fs-body);
  line-height: 1.65;
  color: var(--c-charcoal);
  background: var(--c-white);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; padding-left: 0; }
h1,h2,h3 { font-family: var(--ff-display); line-height: 1.1; color: var(--c-black); }
h4,h5,h6 { font-family: var(--ff-body); font-weight: 600; }
:focus-visible { outline: 3px solid var(--c-yellow); outline-offset: 3px; }

/* ---- Layout ---- */
.df-container { width: 100%; max-width: var(--max-width); margin-inline: auto; padding-inline: var(--pad-x); }

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  font-family: var(--ff-body); font-size: var(--fs-sm); font-weight: 700;
  letter-spacing: .06em; text-transform: uppercase;
  border: 2px solid transparent; border-radius: var(--radius-sm);
  cursor: pointer; padding: 13px 28px;
  transition: background var(--t-fast), transform var(--t-fast), box-shadow var(--t-fast);
  text-decoration: none;
}
.btn:focus-visible { outline: 3px solid var(--c-yellow); outline-offset: 3px; }
.btn-primary { background: var(--c-yellow); color: var(--c-black); border-color: var(--c-yellow); }
.btn-primary:hover { background: var(--c-yellow-hover); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-primary:active { background: var(--c-yellow-active); transform: translateY(0); }
.btn-outline { background: transparent; color: var(--c-white); border-color: rgba(255,255,255,.5); }
.btn-outline:hover { border-color: var(--c-white); background: rgba(255,255,255,.08); transform: translateY(-2px); }
.btn-dark { background: var(--c-charcoal); color: var(--c-white); border-color: var(--c-charcoal); }
.btn-dark:hover { background: var(--c-dark); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-lg { padding: 16px 40px; font-size: .9375rem; }

/* ---- Eyebrow / label ---- */
.df-eyebrow {
  display: inline-block; font-size: var(--fs-xs); font-weight: 700;
  letter-spacing: .18em; text-transform: uppercase; color: var(--c-yellow);
  margin-bottom: var(--space-3);
}

/* ---- Section header ---- */
.df-section { padding-block: var(--space-10); }
.df-section--cream { background: var(--c-cream); }
.df-section--dark  { background: var(--c-charcoal); color: var(--c-white); }
.df-section__header { text-align: center; max-width: 640px; margin: 0 auto var(--space-8); }
.df-section__title { font-size: var(--fs-h2); margin-bottom: var(--space-4); }
.df-section--dark .df-section__title { color: var(--c-white); }
.df-section__lead { font-size: var(--fs-body); color: var(--c-gray-dark); line-height: 1.65; }
.df-section--dark .df-section__lead { color: rgba(255,255,255,.62); }

/* ---- Scroll Reveal ---- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity var(--t-slow), transform var(--t-slow); }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-d1 { transition-delay: 100ms; }
.reveal-d2 { transition-delay: 200ms; }
.reveal-d3 { transition-delay: 300ms; }

/* ---- Shared Nav (subpages) ---- */
.df-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: var(--space-5) var(--pad-x);
  display: flex; align-items: center; justify-content: space-between;
  transition: background var(--t-normal), box-shadow var(--t-normal), padding var(--t-normal);
}
.df-nav.scrolled {
  background: rgba(10,10,10,.96);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 rgba(255,255,255,.06);
  padding-block: var(--space-3);
}
.df-nav__logo {
  display: block; height: 56px; width: 140px;
  background: url('/images/logo.svg') no-repeat left center; background-size: contain;
  flex-shrink: 0; transition: filter var(--t-normal);
}
.df-nav.scrolled .df-nav__logo { filter: brightness(0) invert(1); }
.df-nav__toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: var(--space-2); z-index: 1001; }
.df-nav__toggle span { display: block; width: 22px; height: 2px; background: var(--c-white); border-radius: 2px; transition: transform var(--t-normal), opacity var(--t-normal); }
.df-nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.df-nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.df-nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.df-nav__links { display: flex; align-items: center; gap: 2px; }
.df-nav__link { font-size: var(--fs-sm); font-weight: 500; color: rgba(255,255,255,.82); padding: var(--space-2) var(--space-3); border-radius: var(--radius-sm); transition: color var(--t-fast); }
.df-nav__link:hover, .df-nav__link:focus-visible { color: var(--c-yellow); }
.df-nav__link--cta { background: var(--c-yellow); color: var(--c-black) !important; font-weight: 700; padding: var(--space-2) var(--space-5); border-radius: var(--radius-sm); transition: background var(--t-fast); margin-left: var(--space-2); }
.df-nav__link--cta:hover { background: var(--c-yellow-hover); }
.df-nav__link--current { color: var(--c-yellow) !important; }
.df-nav__link--btn-primary { background: var(--c-yellow); color: var(--c-black) !important; font-weight: 700; padding: var(--space-2) var(--space-4); border-radius: var(--radius-sm); transition: background var(--t-fast), transform var(--t-fast); margin-left: var(--space-2); }
.df-nav__link--btn-primary:hover { background: var(--c-yellow-hover); transform: translateY(-1px); }
.df-nav__link--btn-outline { background: transparent; color: var(--c-white) !important; border: 2px solid rgba(255,255,255,.5); padding: var(--space-2) var(--space-4); border-radius: var(--radius-sm); transition: border-color var(--t-fast), background var(--t-fast), transform var(--t-fast); margin-left: var(--space-2); }
.df-nav__link--btn-outline:hover { border-color: var(--c-white); background: rgba(255,255,255,.08); transform: translateY(-1px); }
.df-nav__overlay { position: fixed; inset: 0; background: rgba(0,0,0,.55); z-index: 999; opacity: 0; pointer-events: none; transition: opacity var(--t-normal); }
.df-nav__overlay.open { opacity: 1; pointer-events: all; }

/* ---- Shared Footer ---- */
.df-footer { background: var(--c-charcoal); padding-top: var(--space-10); padding-bottom: var(--space-7); padding-inline: var(--pad-x); }
.df-footer__inner { max-width: var(--max-width); margin-inline: auto; }
.df-footer__top { display: grid; grid-template-columns: 1fr; gap: var(--space-8); padding-bottom: var(--space-6); border-bottom: 1px solid rgba(255,255,255,.1); margin-bottom: var(--space-4); }
.df-footer__logo { height: 52px; filter: brightness(0) invert(1); margin-bottom: var(--space-4); }
.df-footer__brand-desc { font-size: var(--fs-sm); color: rgba(255,255,255,.45); max-width: 30ch; line-height: 1.6; }
.df-footer__col-title { font-size: var(--fs-xs); font-weight: 800; letter-spacing: .14em; text-transform: uppercase; color: var(--c-yellow); margin-bottom: var(--space-4); }
.df-footer__links { display: flex; flex-direction: column; gap: var(--space-3); }
.df-footer__link { font-size: var(--fs-sm); color: rgba(255,255,255,.5); transition: color var(--t-fast); }
.df-footer__link:hover { color: var(--c-white); }
.df-footer__bottom { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--space-3); }
.df-footer__copy { font-size: var(--fs-xs); color: rgba(255,255,255,.3); }
.df-footer__copy a { color: rgba(255,255,255,.5); text-decoration: underline; text-underline-offset: 3px; }

/* ---- Mobile Nav (shared) ---- */
@media (max-width: 1023px) {
  .df-nav__toggle { display: flex; }
  .df-nav__links {
    position: fixed; top: 0; right: -100%;
    width: min(320px, 88vw); height: 100dvh;
    background: var(--c-charcoal); flex-direction: column; align-items: flex-start;
    padding: calc(80px + var(--space-7)) var(--space-6) var(--space-6);
    gap: var(--space-2); transition: right var(--t-normal); overflow-y: auto;
    box-shadow: var(--shadow-lg); z-index: 1000;
  }
  .df-nav__links.open { right: 0; }
  .df-nav__links > li { width: 100%; }
  .df-nav__link { font-size: 1rem; padding: var(--space-3) var(--space-4); width: 100%; display: block; }
  .df-nav__link--cta { display: flex; width: 100%; justify-content: center; margin: var(--space-3) 0 0; }
  .df-nav__link--btn-outline { display: none; }
  .df-nav__link--btn-primary {
    display: flex; align-items: center; justify-content: center;
    margin-left: 0; width: 100%; margin-top: var(--space-5);
  }
}

@media (min-width: 768px) {
  .df-footer__top { grid-template-columns: 2fr 1fr 1fr 1fr; }
}

/* ---- Subpage Hero (dark full-width header for inner pages) ---- */
.df-page-hero {
  background: var(--c-charcoal);
  padding-top: calc(var(--space-9) + 80px);
  padding-bottom: var(--space-9);
  padding-inline: var(--pad-x);
  text-align: center;
}
.df-page-hero__eyebrow { color: var(--c-yellow); font-size: var(--fs-xs); font-weight: 700; letter-spacing: .18em; text-transform: uppercase; margin-bottom: var(--space-3); }
.df-page-hero__title { font-size: var(--fs-h2); color: var(--c-white); margin-bottom: var(--space-4); }
.df-page-hero__lead { font-size: var(--fs-body); color: rgba(255,255,255,.65); max-width: 56ch; margin-inline: auto; line-height: 1.65; }
