/* ============================================================
   Catalyst Studios — Design System
   Bold & Modern · Black / Gold / Ivory · Subtle elegant motion
   ============================================================ */

:root{
  /* --- Color: surfaces --- */
  --bg:            #0a0a0a;
  --bg-alt:        #121110;
  --bg-elevated:   #17150f;
  --bg-elevated-2: #1d1a12;

  /* --- Color: borders --- */
  --border:        rgba(255,255,255,0.08);
  --border-strong: rgba(212,175,55,0.35);

  /* --- Color: text --- */
  --ink:           #f5f3ec;
  --ink-soft:      #c9c6bc;
  --ink-mute:      #8f8c82;

  /* --- Color: gold system --- */
  --gold-deep:     #a97e2f;
  --gold:          #d4af37;
  --gold-light:    #f2d98d;
  --gradient-gold: linear-gradient(120deg, var(--gold-deep) 0%, var(--gold) 45%, var(--gold-light) 65%, var(--gold) 85%, var(--gold-deep) 100%);
  --gradient-gold-static: linear-gradient(135deg, var(--gold-deep), var(--gold-light));

  /* --- Type --- */
  --font-display: "Cormorant Garamond", "Times New Roman", serif;
  --font-body: "Jost", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  /* --- Spacing scale (4/8 rhythm) --- */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 16px;
  --sp-4: 24px;
  --sp-5: 32px;
  --sp-6: 48px;
  --sp-7: 64px;
  --sp-8: 96px;
  --sp-9: 128px;

  /* --- Radius / shadow --- */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --shadow-soft: 0 20px 60px -20px rgba(0,0,0,0.6);
  --shadow-gold: 0 8px 30px -8px rgba(212,175,55,0.35);

  /* --- Motion --- */
  --ease-out: cubic-bezier(.16,1,.3,1);
  --ease-in-out: cubic-bezier(.65,0,.35,1);
  --dur-fast: 180ms;
  --dur-med: 320ms;
  --dur-slow: 500ms;

  --container: 1180px;
}

/* ============ Reset ============ */
*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *, *::before, *::after{
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}
body, h1, h2, h3, h4, p, figure, blockquote, dl, dd{ margin: 0; }
ul, ol{ margin: 0; padding: 0; list-style: none; }
img, picture, svg{ display: block; max-width: 100%; }
a{ color: inherit; text-decoration: none; }
button{ font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
input, textarea, select{ font: inherit; color: inherit; }

body{
  background: var(--bg);
  color: var(--ink-soft);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  min-height: 100dvh;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* subtle film-grain / vignette texture on the whole page */
body::before{
  content:"";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(1200px 600px at 15% -10%, rgba(212,175,55,0.07), transparent 60%),
    radial-gradient(900px 500px at 100% 10%, rgba(212,175,55,0.05), transparent 55%);
}

h1, h2, h3, h4{
  font-family: var(--font-display);
  color: var(--ink);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: 0.01em;
}
h1{ font-size: clamp(2.6rem, 5.5vw, 4.6rem); font-weight: 600; }
h2{ font-size: clamp(2rem, 3.6vw, 3rem); }
h3{ font-size: clamp(1.35rem, 2.2vw, 1.75rem); }
h4{ font-size: 1.15rem; font-family: var(--font-body); font-weight: 600; letter-spacing: 0.02em; }

p{ max-width: 62ch; }
.text-lead{ font-size: clamp(1.05rem, 1.6vw, 1.25rem); color: var(--ink-soft); }
.text-mute{ color: var(--ink-mute); }

.gold-text{
  background: var(--gradient-gold-static);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.eyebrow{
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold-light);
  margin-bottom: var(--sp-3);
}
.eyebrow::before{
  content:"";
  width: 28px;
  height: 1px;
  background: var(--gradient-gold-static);
}

/* ============ Layout ============ */
.container{
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--sp-4);
}
@media (min-width: 640px){ .container{ padding-inline: var(--sp-6); } }

section{ position: relative; z-index: 1; }
.section{ padding-block: var(--sp-8); }
@media (max-width: 640px){ .section{ padding-block: var(--sp-7); } }

.section-head{ max-width: 640px; margin-bottom: var(--sp-7); }
.section-head.center{ margin-inline: auto; text-align: center; }

.grid{ display: grid; gap: var(--sp-5); }
.grid-2{ grid-template-columns: repeat(2, 1fr); }
.grid-3{ grid-template-columns: repeat(3, 1fr); }
.grid-4{ grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px){
  .grid-3, .grid-4{ grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px){
  .grid-2, .grid-3, .grid-4{ grid-template-columns: 1fr; }
}

.divider{
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-strong), transparent);
  border: none;
  margin-block: var(--sp-7);
}

/* ============ Buttons ============ */
.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  padding: 14px 30px;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  white-space: nowrap;
  transition: transform var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out);
  min-height: 48px;
}
.btn:active{ transform: scale(0.97); }
.btn:disabled{
  opacity: 0.6;
  cursor: default;
  pointer-events: none;
}
.btn-primary{
  background: var(--gradient-gold-static);
  color: #14110a;
}
.btn-primary:hover{
  box-shadow: var(--shadow-gold);
  transform: translateY(-2px);
}
.btn-ghost{
  border: 1px solid var(--border);
  color: var(--ink);
  background: rgba(255,255,255,0.02);
}
.btn-ghost:hover{
  border-color: var(--border-strong);
  background: rgba(212,175,55,0.06);
  transform: translateY(-2px);
}
.btn-sm{ padding: 10px 22px; font-size: 0.875rem; min-height: 40px; }
.btn-block{ width: 100%; }

/* ============ Header / Nav ============ */
.site-header{
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding-block: var(--sp-4);
  transition: padding var(--dur-med) var(--ease-out), background var(--dur-med) var(--ease-out), border-color var(--dur-med) var(--ease-out);
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled{
  padding-block: 14px;
  background: rgba(10,10,10,0.82);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--border);
}
.header-inner{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
}

.brand{ display: flex; align-items: center; gap: 2px; }
.brand-mark{
  width: 34px; height: 34px;
  flex-shrink: 0;
  object-fit: contain;
}
.brand-word{
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--ink);
}

.main-nav{ display: flex; align-items: center; gap: var(--sp-6); }
.nav-list{ display: flex; align-items: center; gap: var(--sp-5); }
.nav-link{
  position: relative;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--ink-soft);
  padding-block: 4px;
  transition: color var(--dur-fast) var(--ease-out);
}
.nav-link::after{
  content:"";
  position: absolute;
  left: 0; bottom: -2px;
  width: 0; height: 1px;
  background: var(--gradient-gold-static);
  transition: width var(--dur-med) var(--ease-out);
}
.nav-link:hover{ color: var(--ink); }
.nav-link:hover::after, .nav-link.is-active::after{ width: 100%; }
.nav-link.is-active{ color: var(--gold-light); }

.header-cta{ display: flex; align-items: center; gap: var(--sp-3); }

.nav-toggle{
  display: none;
  width: 44px; height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
}
.nav-toggle-bars{ position: relative; width: 22px; height: 16px; }
.nav-toggle-bars span{
  position: absolute; left: 0; right: 0; height: 1.5px;
  background: var(--ink);
  transition: transform var(--dur-med) var(--ease-out), opacity var(--dur-fast) var(--ease-out), top var(--dur-med) var(--ease-out);
}
.nav-toggle-bars span:nth-child(1){ top: 0; }
.nav-toggle-bars span:nth-child(2){ top: 7px; }
.nav-toggle-bars span:nth-child(3){ top: 14px; }
.nav-open .nav-toggle-bars span:nth-child(1){ top: 7px; transform: rotate(45deg); }
.nav-open .nav-toggle-bars span:nth-child(2){ opacity: 0; }
.nav-open .nav-toggle-bars span:nth-child(3){ top: 7px; transform: rotate(-45deg); }

@media (max-width: 860px){
  .main-nav{
    position: fixed;
    inset: 0 0 0 auto;
    width: min(340px, 86vw);
    height: 100dvh;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0;
    background: #0d0c09;
    border-left: 1px solid var(--border);
    padding: 100px var(--sp-5) var(--sp-5);
    transform: translateX(100%);
    transition: transform var(--dur-med) var(--ease-in-out);
  }
  .nav-open .main-nav{ transform: translateX(0); }
  .nav-list{ flex-direction: column; align-items: flex-start; gap: var(--sp-4); width: 100%; }
  .nav-link{ font-size: 1.15rem; }
  .header-cta{ margin-top: var(--sp-6); flex-direction: column; align-items: stretch; width: 100%; }
  .nav-toggle{ display: inline-flex; }
  .nav-scrim{
    position: fixed; inset: 0; z-index: 90;
    background: rgba(0,0,0,0.5);
    opacity: 0; pointer-events: none;
    transition: opacity var(--dur-med) var(--ease-out);
  }
  .nav-open .nav-scrim{ opacity: 1; pointer-events: auto; }
}
@media (min-width: 861px){
  .nav-scrim{ display: none; }
}

/* ============ Hero ============ */
.hero{
  padding-top: clamp(140px, 22vw, 200px);
  padding-bottom: var(--sp-8);
  position: relative;
  overflow: clip;
}
.hero-bg-glow{
  position: absolute;
  top: -10%; right: -10%;
  width: 60vw; height: 60vw;
  max-width: 700px; max-height: 700px;
  background: radial-gradient(circle, rgba(212,175,55,0.14), transparent 65%);
  pointer-events: none;
  z-index: 0;
}
.hero-inner{ position: relative; z-index: 1; max-width: 900px; }
.hero h1{ margin-bottom: var(--sp-4); }
.hero-actions{ display: flex; gap: var(--sp-3); flex-wrap: wrap; margin-top: var(--sp-6); }
.hero-meta{
  display: flex; gap: var(--sp-6); flex-wrap: wrap;
  margin-top: var(--sp-7);
  padding-top: var(--sp-5);
  border-top: 1px solid var(--border);
}
.hero-meta-item .num{
  font-family: var(--font-display);
  font-size: 1.8rem;
  color: var(--ink);
  display: block;
}
.hero-meta-item .label{ font-size: 0.82rem; color: var(--ink-mute); }

/* ============ Cards ============ */
.card{
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--sp-5);
  transition: transform var(--dur-med) var(--ease-out), border-color var(--dur-med) var(--ease-out), background var(--dur-med) var(--ease-out);
}
.card:hover{
  transform: translateY(-4px);
  border-color: var(--border-strong);
  background: var(--bg-elevated);
}
.card-icon{
  width: 46px; height: 46px;
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  background: rgba(212,175,55,0.1);
  border: 1px solid var(--border-strong);
  margin-bottom: var(--sp-4);
  color: var(--gold-light);
}
.card h3{ margin-bottom: var(--sp-2); }
.card p{ font-size: 0.95rem; }

/* ============ Reveal-on-scroll ============ */
[data-reveal]{
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out);
}
[data-reveal].is-visible{ opacity: 1; transform: translateY(0); }
[data-reveal-group] > *{ transition-delay: calc(var(--i, 0) * 70ms); }

/* ============ Process steps ============ */
.process-steps{ counter-reset: step; }
.process-step{
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--sp-4);
  padding-block: var(--sp-5);
  border-top: 1px solid var(--border);
}
.process-step:last-child{ border-bottom: 1px solid var(--border); }
.process-step .step-num{
  font-family: var(--font-display);
  font-size: 2.2rem;
  color: transparent;
  -webkit-text-stroke: 1px var(--border-strong);
}

/* ============ Case study cards ============ */
.case-card{
  display: grid;
  gap: var(--sp-5);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-alt);
}
.case-media{
  aspect-ratio: 16/10.5;
  background: var(--bg-elevated);
  position: relative;
  overflow: hidden;
}
.case-tag{
  position: absolute; top: var(--sp-3); left: var(--sp-3);
  font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(10,10,10,0.7);
  border: 1px solid var(--border-strong);
  color: var(--gold-light);
  backdrop-filter: blur(6px);
}
.case-body{ padding: 0 var(--sp-5) var(--sp-5); }
.case-body .kicker{ font-size: 0.8rem; color: var(--gold-light); letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: var(--sp-2); }

/* ============ Forms ============ */
.field{ margin-bottom: var(--sp-4); }
.field label{
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: var(--sp-2);
}
.field .req{ color: var(--gold-light); }
.field input,
.field textarea,
.field select{
  width: 100%;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 13px 16px;
  min-height: 48px;
  color: var(--ink);
  transition: border-color var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out);
}
.field textarea{ min-height: 140px; resize: vertical; }
.field input::placeholder, .field textarea::placeholder{ color: var(--ink-mute); }
.field input:focus, .field textarea:focus, .field select:focus{
  outline: none;
  border-color: var(--gold);
  background: var(--bg-elevated);
}
.field-hint{ font-size: 0.78rem; color: var(--ink-mute); margin-top: 6px; }
.field-row{ display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-4); }
@media (max-width: 640px){ .field-row{ grid-template-columns: 1fr; } }

fieldset{ border: none; padding: 0; }
.radio-card-group{ display: grid; grid-template-columns: repeat(3,1fr); gap: var(--sp-3); }
@media (max-width: 640px){ .radio-card-group{ grid-template-columns: 1fr; } }
.radio-card{
  position: relative;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: var(--sp-3);
  cursor: pointer;
  transition: border-color var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out);
}
.radio-card input{ position: absolute; opacity: 0; width: 1px; height: 1px; }
.radio-card:has(input:checked){
  border-color: var(--gold);
  background: rgba(212,175,55,0.08);
}
.radio-card:has(input:focus-visible){ outline: 2px solid var(--gold); outline-offset: 2px; }
.radio-card .title{ font-weight: 600; color: var(--ink); font-size: 0.92rem; }
.radio-card .desc{ font-size: 0.8rem; color: var(--ink-mute); }

.form-status{
  margin-top: var(--sp-4);
  padding: var(--sp-3) var(--sp-4);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  display: none;
}
.form-status.is-visible{ display: block; }
.form-status.success{ background: rgba(66,163,110,0.12); border: 1px solid rgba(66,163,110,0.4); color: #a8e6c1; }
.form-status.error{ background: rgba(200,70,70,0.12); border: 1px solid rgba(200,70,70,0.4); color: #f3b4b4; }

/* ============ Accordion (FAQ) ============ */
.accordion-item{ border-top: 1px solid var(--border); }
.accordion-item:last-child{ border-bottom: 1px solid var(--border); }
.accordion-trigger{
  width: 100%;
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--sp-4);
  padding-block: var(--sp-4);
  text-align: left;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  color: var(--ink);
}
.accordion-icon{
  flex-shrink: 0;
  width: 22px; height: 22px;
  position: relative;
}
.accordion-icon::before, .accordion-icon::after{
  content:"";
  position: absolute;
  background: var(--gold-light);
  transition: transform var(--dur-med) var(--ease-out);
}
.accordion-icon::before{ top: 50%; left: 0; width: 100%; height: 1.5px; transform: translateY(-50%); }
.accordion-icon::after{ top: 0; left: 50%; width: 1.5px; height: 100%; transform: translateX(-50%); }
.accordion-item.is-open .accordion-icon::after{ transform: translateX(-50%) rotate(90deg); opacity: 0; }
.accordion-panel{
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--dur-med) var(--ease-out);
}
.accordion-item.is-open .accordion-panel{ grid-template-rows: 1fr; }
.accordion-panel-inner{ overflow: hidden; }
.accordion-panel p{ padding-bottom: var(--sp-4); font-size: 0.95rem; }

/* ============ Pricing / package cards ============ */
.package-card{
  position: relative;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--sp-5);
  display: flex;
  flex-direction: column;
  background: var(--bg-alt);
}
.package-card.is-featured{
  border-color: var(--border-strong);
  background: linear-gradient(180deg, rgba(212,175,55,0.07), var(--bg-alt) 40%);
}
.package-badge{
  position: absolute; top: -13px; left: var(--sp-5);
  background: var(--gradient-gold-static);
  color: #14110a;
  font-size: 0.72rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase;
  padding: 5px 14px;
  border-radius: 999px;
}
.package-list{ margin-block: var(--sp-5); flex: 1; }
.package-list li{
  display: flex; gap: 10px;
  align-items: flex-start;
  font-size: 0.92rem;
  color: var(--ink-soft);
  padding-block: 7px;
}
.package-list svg{ flex-shrink: 0; margin-top: 3px; color: var(--gold-light); }

/* ============ Testimonial / quote ============ */
.quote-block{
  border-left: 2px solid var(--gold);
  padding-left: var(--sp-5);
}
.quote-block p{ font-family: var(--font-display); font-size: 1.4rem; color: var(--ink); font-style: italic; }
.quote-attrib{ margin-top: var(--sp-3); font-size: 0.88rem; color: var(--ink-mute); }

/* ============ CTA band ============ */
.cta-band{
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-strong);
  background: linear-gradient(135deg, rgba(212,175,55,0.1), transparent 60%), var(--bg-alt);
  padding: var(--sp-7) var(--sp-6);
  text-align: center;
}

/* ============ Footer ============ */
.site-footer{
  border-top: 1px solid var(--border);
  padding-block: var(--sp-7) var(--sp-5);
}
.footer-grid{
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: var(--sp-6);
  margin-bottom: var(--sp-7);
}
@media (max-width: 760px){ .footer-grid{ grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px){ .footer-grid{ grid-template-columns: 1fr; } }
.footer-col h4{ color: var(--ink); margin-bottom: var(--sp-3); font-size: 0.85rem; letter-spacing: 0.08em; text-transform: uppercase; }
.footer-col ul{ display: flex; flex-direction: column; gap: 10px; }
.footer-col a{ font-size: 0.92rem; color: var(--ink-soft); transition: color var(--dur-fast); }
.footer-col a:hover{ color: var(--gold-light); }
.footer-bottom{
  display: flex; justify-content: space-between; align-items: center; gap: var(--sp-4);
  padding-top: var(--sp-5);
  border-top: 1px solid var(--border);
  font-size: 0.82rem;
  color: var(--ink-mute);
  flex-wrap: wrap;
}

/* ============ Utility ============ */
.skip-link{
  position: absolute; left: -9999px; top: 0;
  background: var(--gold); color: #14110a;
  padding: 12px 20px; z-index: 1000; border-radius: 0 0 8px 0;
  font-weight: 600;
}
.skip-link:focus{ left: 0; }
:focus-visible{ outline: 2px solid var(--gold); outline-offset: 3px; }
.visually-hidden{
  position: absolute; width: 1px; height: 1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap;
}
.mt-0{ margin-top: 0; }
.center-text{ text-align: center; }
.flex-center{ display: flex; align-items: center; }
.gap-3{ gap: var(--sp-3); }

/* ============ Page hero (inner pages) ============ */
.page-hero{
  padding-top: clamp(130px, 18vw, 170px);
  padding-bottom: var(--sp-7);
}
.breadcrumb{
  display: flex; gap: 8px; align-items: center;
  font-size: 0.82rem; color: var(--ink-mute);
  margin-bottom: var(--sp-4);
}
.breadcrumb a:hover{ color: var(--gold-light); }