/* ===========================================================
   MailCapital - Email & SMS infrastructure for eCommerce brands
   Design tokens
=========================================================== */
:root{
  /* Colors */
  --ink:        #14171F;   /* deep charcoal navy - inbox / system */
  --ink-soft:   #1D212C;
  --ink-line:   #2A2F3B;
  --paper:      #EFEDE2;   /* receipt paper */
  --paper-raised:#FAF9F3;
  --paper-line: #D9D5C6;
  --ink-text:   #1B1D22;
  --ink-text-70:rgba(27,29,34,.7);
  --paper-text-70: rgba(239,237,226,.72);
  --flash:      #FF5A36;   /* packaging-tape orange-red */
  --flash-dark: #E14A29;
  --grow:       #3FBE83;   /* growth mint-green */

  /* Type */
  --font-display: "Space Grotesk", sans-serif;
  --font-body: "Inter", sans-serif;
  --font-mono: "JetBrains Mono", monospace;

  /* Layout */
  --wrap: 1160px;
  --radius: 14px;
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
section[id], div[id]{ scroll-margin-top: 56px; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *, *::before, *::after{ animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
}

body{
  margin:0;
  background: var(--paper);
  color: var(--ink-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

img{ max-width:100%; display:block; }
a{ color: inherit; text-decoration: none; }
ul, ol{ margin:0; padding:0; list-style:none; }
h1,h2,h3{ margin:0; font-family: var(--font-display); letter-spacing: -0.01em; }

.wrap{
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 28px;
}

.skip-link{
  position:absolute; left:-9999px; top:0;
  background: var(--flash); color:#fff; padding:12px 18px; border-radius: 0 0 8px 0; z-index: 999;
}
.skip-link:focus{ left:0; }

:focus-visible{
  outline: 2px solid var(--flash);
  outline-offset: 3px;
}

.eyebrow{
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--flash-dark);
  margin: 0 0 14px;
  font-weight: 600;
}
.eyebrow--light{ color: #FF8A6B; }

.section-title{
  font-size: clamp(28px, 3.6vw, 42px);
  line-height: 1.12;
  font-weight: 600;
  margin: 0 0 44px;
  max-width: 640px;
}
.section-title--light{ color: var(--paper); margin-bottom: 20px; }

/* ---------- Buttons ---------- */
.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 999px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform .15s ease, background .15s ease, border-color .15s ease, color .15s ease;
  white-space: nowrap;
}
.btn:hover{ transform: translateY(-1px); }
.btn--primary{
  background: var(--flash);
  color: #fff;
}
.btn--primary:hover{ background: var(--flash-dark); }
.btn--ghost{
  background: transparent;
  border-color: var(--ink-text-70);
  color: var(--ink-text);
}
.btn--ghost:hover{ border-color: var(--ink-text); }
.btn--block{ width: 100%; }

/* ===========================================================
   NAV (Desktop Default)
=========================================================== */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(239, 237, 226, 0.86);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--paper-line);
}

.nav__row {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 32px;
  height: 76px;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  color: inherit;
  text-decoration: none;
}

.nav__logo-img {
  width: 26px;
  height: 26px;
  object-fit: contain;
  display: block;
}

.nav__logo-text {
  display: inline-block;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 32px;
  font-weight: 500;
  font-size: 15px;
  margin-left: auto;
}

.nav__link {
  color: var(--ink-text);
  text-decoration: none;
  transition: color 0.15s ease;
}

.nav__link:hover {
  color: var(--flash-dark);
}

.nav__icon {
  display: none !important;
}

.nav__label {
  display: inline-block;
}

.nav__cta {
  background: var(--ink);
  color: var(--paper);
  padding: 10px 20px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 14.5px;
  text-decoration: none;
  transition: background 0.15s ease, transform 0.15s ease;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.nav__cta:hover {
  background: var(--flash-dark);
  color: #fff;
  transform: translateY(-1px);
}

.nav__cta-icon { display: none !important; }
.nav__cta-desktop { display: inline !important; }
.nav__cta-mobile { display: none !important; }
.nav__toggle { display: none; }

/* ===========================================================
   NAV (Mobile & Tablet View)
=========================================================== */
@media (max-width: 768px) {
  .nav {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100% !important;
    background: transparent !important;
    border-bottom: none !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    pointer-events: none !important;
    z-index: 9999 !important;
  }

  .nav__row {
    height: 76px !important;
    padding: 12px 18px 0 !important;
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    justify-content: space-between !important;
  }

  .nav .nav__logo {
    pointer-events: auto !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    width: 46px !important;
    height: 46px !important;
    background: rgba(20, 23, 31, 0.72) !important;
    backdrop-filter: blur(28px) saturate(200%) !important;
    -webkit-backdrop-filter: blur(28px) saturate(200%) !important;
    border: 1px solid rgba(255, 255, 255, 0.18) !important;
    border-radius: 50% !important;
    box-shadow: 0 10px 26px rgba(0, 0, 0, 0.4),
                inset 0 1px 1.5px rgba(255, 255, 255, 0.35),
                inset 0 -1px 2px rgba(0, 0, 0, 0.3) !important;
    padding: 0 !important;
  }

  .nav .nav__logo-img { width: 26px !important; height: 26px !important; }
  .nav .nav__logo-text { display: none !important; }

  .nav__logo--footer {
    display: inline-flex !important;
    align-items: center !important;
    gap: 10px !important;
    width: auto !important;
    height: auto !important;
    background: transparent !important;
    border: none !important;
    border-radius: 0 !important;
    box-shadow: none !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    padding: 0 !important;
    color: var(--paper) !important;
  }

  .nav__logo--footer .nav__logo-img { width: 26px !important; height: 26px !important; display: block !important; }
  .nav__logo--footer .nav__logo-text { display: inline-block !important; }

  .nav__cta {
    pointer-events: auto !important;
    display: inline-flex !important;
    align-items: center !important;
    gap: 8px !important;
    background: rgba(20, 23, 31, 0.72) !important;
    color: var(--paper) !important;
    backdrop-filter: blur(28px) saturate(200%) !important;
    -webkit-backdrop-filter: blur(28px) saturate(200%) !important;
    border: 1px solid rgba(255, 255, 255, 0.18) !important;
    border-radius: 999px !important;
    padding: 10px 18px !important;
    font-size: 13.5px !important;
    font-weight: 600 !important;
    box-shadow: 0 10px 26px rgba(0, 0, 0, 0.4),
                inset 0 1px 1.5px rgba(255, 255, 255, 0.35),
                inset 0 -1px 2px rgba(0, 0, 0, 0.3) !important;
  }

  .nav__cta-icon {
    display: block !important;
    width: 17px !important;
    height: 17px !important;
    stroke: var(--flash) !important;
  }

  .nav__cta-desktop { display: none !important; }
  .nav__cta-mobile { display: inline !important; }

  .nav__cta:active {
    background: rgba(20, 23, 31, 0.88) !important;
    transform: scale(0.95) !important;
  }

  .nav__links {
    position: fixed !important;
    inset: auto auto calc(10px + env(safe-area-inset-bottom, 0px)) 50% !important;
    transform: translateX(-50%) !important;
    width: calc(100% - 36px) !important;
    max-width: 360px !important;
    margin-left: 0 !important;
    padding: 5px 8px !important;
    display: flex !important;
    opacity: 1 !important;
    visibility: visible !important;
    pointer-events: auto !important;
    justify-content: space-around !important;
    align-items: center !important;
    gap: 4px !important;
    background: rgba(20, 23, 31, 0.85) !important;
    backdrop-filter: blur(32px) saturate(220%) !important;
    -webkit-backdrop-filter: blur(32px) saturate(220%) !important;
    border: 1px solid rgba(255, 255, 255, 0.18) !important;
    border-radius: 9999px !important;
    box-shadow: 0 20px 48px -10px rgba(0, 0, 0, 0.6),
                inset 0 1px 2px rgba(255, 255, 255, 0.35),
                inset 0 -1px 2px rgba(0, 0, 0, 0.3) !important;
    z-index: 99999 !important;
  }

  .nav__link {
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 2px !important;
    padding: 6px 8px !important;
    min-width: 48px !important;
    border-radius: 999px !important;
    color: rgba(239, 237, 226, 0.65) !important;
    font-size: 10px !important;
    font-weight: 600 !important;
    text-decoration: none !important;
    transition: all 0.2s ease !important;
  }

  .nav__icon {
    display: block !important;
    width: 19px !important;
    height: 19px !important;
    stroke-width: 2.1 !important;
    transition: transform 0.2s ease, stroke 0.2s ease !important;
  }

  .nav__label { display: block !important; line-height: 1 !important; }

  .nav__link.active {
    color: var(--flash) !important;
    background: rgba(255, 90, 54, 0.12) !important;
  }

  .nav__link.active .nav__icon {
    stroke: var(--flash) !important;
    transform: scale(1.1) !important;
  }
}

/* ===========================================================
   HERO & INTERACTIVE CALCULATOR
=========================================================== */
.hero{
  background: var(--ink);
  color: var(--paper);
  padding: 56px 0 80px;
  position: relative;
  overflow: hidden;
}
.hero::before{
  content:"";
  position:absolute; inset: -20% -10% auto auto;
  width: 520px; height: 520px;
  background: radial-gradient(circle, rgba(255,90,54,.28), transparent 70%);
  pointer-events:none;
}
.hero__grid{
  display:grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 56px;
  align-items:center;
  position: relative;
}
.hero__title{
  font-size: clamp(34px, 4.6vw, 56px);
  line-height: 1.08;
  font-weight: 700;
  margin: 0 0 20px;
}
.hero__title-accent{ color: #FF8A6B; }
.hero__sub{
  font-size: 17px;
  color: var(--paper-text-70);
  max-width: 480px;
  margin: 0 0 28px;
}
.hero__actions{ display:flex; gap: 14px; flex-wrap: wrap; }
.hero .btn--ghost{ border-color: rgba(239,237,226,.4); color: var(--paper); }
.hero .btn--ghost:hover{ border-color: var(--paper); }
.hero__note{
  margin: 18px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  color: rgba(239,237,226,.55);
}

.hero__visual{ display:flex; justify-content:center; width: 100%; }
.hero__visual-wrap{
  position: relative;
  width: 100%;
  max-width: 340px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.calc-box{
  width: 100%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(239, 237, 226, 0.18);
  border-radius: var(--radius);
  padding: 14px 18px;
  margin-bottom: 22px;
  box-sizing: border-box;
}
.calc-box__head{
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 12px;
  margin-bottom: 8px;
}
.calc-box__label{ color: var(--paper-text-70); }
.calc-box__val{ font-weight: 700; color: #FF8A6B; font-size: 14px; }
.calc-slider{
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 5px;
  border-radius: 999px;
  background: rgba(239, 237, 226, 0.2);
  outline: none;
  cursor: pointer;
}
.calc-slider::-webkit-slider-thumb{
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--flash);
  border: 2px solid #fff;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0,0,0,0.4);
  transition: transform .1s ease;
}
.calc-slider::-webkit-slider-thumb:hover{ transform: scale(1.15); }
.calc-slider::-moz-range-thumb{
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--flash);
  border: 2px solid #fff;
  cursor: pointer;
}
.calc-box__ticks{
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 10px;
  color: rgba(239, 237, 226, 0.45);
  margin-top: 5px;
}

/* ---- Receipt Element ---- */
.receipt{
  width: 100%;
  max-width: 340px;
  background: var(--paper-raised);
  color: var(--ink-text);
  padding: 24px 22px 36px;
  clip-path: polygon(
    0 0, 100% 0, 100% 92%,
    95% 100%, 90% 92%, 85% 100%, 80% 92%, 75% 100%, 70% 92%,
    65% 100%, 60% 92%, 55% 100%, 50% 92%, 45% 100%, 40% 92%,
    35% 100%, 30% 92%, 25% 100%, 20% 92%, 15% 100%, 10% 92%,
    5% 100%, 0 92%
  );
  box-shadow: 0 30px 60px -20px rgba(0,0,0,.55);
  transform: rotate(1.5deg);
}
.receipt__head{ text-align:center; margin-bottom: 16px; }
.receipt__brand{
  display:block;
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: .18em;
  font-size: 13px;
}
.receipt__label{
  display:block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 17px;
  margin-top: 4px;
}
.receipt__sub{
  display:block;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-text-70);
  margin-top: 4px;
}
.receipt__lines{
  border-top: 1px dashed var(--paper-line);
  border-bottom: 1px dashed var(--paper-line);
  padding: 12px 0;
}
.receipt__lines li{
  display:flex; justify-content:space-between; align-items:center; gap: 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 5px 0;
}
.receipt__item-name{ display: inline-flex; align-items: center; gap: 6px; }
.pulse-dot{
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--grow);
  box-shadow: 0 0 6px var(--grow);
  display: inline-block;
}
.receipt__lines b{ font-weight: 700; color: var(--grow); font-size: 13.5px; }
.receipt__divider{ height: 1px; }
.receipt__total{
  display:flex; justify-content:space-between; align-items:baseline;
  margin-top: 10px;
  font-family: var(--font-mono);
}
.receipt__total span{ font-size: 12.5px; font-weight: 600; }
.receipt__total b{ font-size: 21px; font-weight: 700; color: var(--flash-dark); }

.receipt__fine{
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--ink-text-70);
  text-align:center;
}

/* ===========================================================
   STATS
=========================================================== */
.stats{ background: var(--ink); border-top: 1px solid var(--ink-line); padding: 56px 0 48px; }
.stats__row{ display:grid; grid-template-columns: repeat(3, 1fr); gap: 36px; }
.stat__num{
  display:block;
  font-family: var(--font-mono);
  font-size: clamp(32px, 3.8vw, 42px);
  font-weight: 700;
  color: var(--paper);
  margin-bottom: 8px;
}
.stat__label{ margin:0; color: var(--paper-text-70); font-size: 14px; max-width: 300px; }

/* ===========================================================
   SERVICES
=========================================================== */
.services{ padding: 72px 0; }
.services-tabs__nav{
  display: flex;
  align-items: center;
  gap: 10px;
  overflow-x: auto;
  padding: 8px 4px 12px 4px;
  margin-bottom: 24px;
  scrollbar-width: none;
}
.services-tabs__nav::-webkit-scrollbar{ display: none; }

.services-tabs__btn{
  background: var(--paper-raised);
  border: 1px solid var(--paper-line);
  color: var(--ink-text-70);
  font-family: var(--font-mono);
  font-size: 13.5px;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: 999px;
  cursor: pointer;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}
.services-tabs__num{ color: var(--flash); font-size: 11px; }
.services-tabs__btn:hover{
  border-color: var(--ink);
  color: var(--ink);
  transform: translateY(-2px);
  box-shadow: 0 6px 14px -6px rgba(20, 23, 31, 0.15);
}
.services-tabs__btn.active{
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
  transform: translateY(0);
  box-shadow: 0 8px 18px -8px rgba(20, 23, 31, 0.35);
}
.services-tabs__btn.active .services-tabs__num{ color: #FF8A6B; }

.services-tabs__container{ position: relative; min-height: 480px; }
.services-tab__panel{ display: none; opacity: 0; transform: translateY(18px); }
.services-tab__panel.active{ display: block; animation: panel-enter 0.55s cubic-bezier(0.16, 1, 0.3, 1) forwards; }
.services-tab__panel.is-animating-out{ display: block; animation: panel-exit 0.35s cubic-bezier(0.7, 0, 0.84, 0) forwards; }

@keyframes panel-enter{
  0%{ opacity: 0; transform: translateY(22px); }
  100%{ opacity: 1; transform: translateY(0); }
}
@keyframes panel-exit{
  0%{ opacity: 1; transform: translateY(0); }
  100%{ opacity: 0; transform: translateY(-14px); }
}

.services-tab__grid{
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 40px;
  align-items: center;
  background: var(--paper-raised);
  border: 1px solid var(--paper-line);
  border-radius: var(--radius);
  padding: 44px;
  box-shadow: 0 16px 36px -20px rgba(20,23,31,.18);
}
.services-tab__kicker{
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--flash-dark);
  font-weight: 700;
  margin-bottom: 8px;
}
.services-tab__title{ font-size: clamp(22px, 2.5vw, 28px); line-height: 1.2; font-weight: 700; margin-bottom: 12px; }
.services-tab__desc{ font-size: 15px; color: var(--ink-text-70); line-height: 1.55; margin-bottom: 22px; max-width: 540px; }
.services-tab__deliverables{
  list-style: none;
  padding: 0;
  margin: 0 0 28px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 20px;
}
.services-tab__deliverables li{ position: relative; padding-left: 20px; font-size: 13.5px; font-weight: 500; color: var(--ink-text); }
.services-tab__deliverables li::before{ content: "✓"; position: absolute; left: 0; top: 0; color: var(--grow); font-weight: 700; }
.services-tab__action{ display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.services-tab__note{ font-family: var(--font-mono); font-size: 11.5px; color: var(--ink-text-70); }

/* Interactive Tilted Previews */
.services-tab__preview{ width: 100%; display: flex; justify-content: center; perspective: 1000px; }
.diag-matrix, .optin-preview, .tree-preview, .ltv-preview, .deliverability-preview{
  background: var(--ink);
  color: var(--paper);
  border: 1px solid var(--ink-line);
  border-radius: var(--radius);
  padding: 26px;
  width: 100%;
  box-shadow: 0 24px 48px -18px rgba(0,0,0,.55);
  transform: rotate(1.2deg);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.35s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.35s ease;
  cursor: pointer;
}
.diag-matrix:hover, .optin-preview:hover, .tree-preview:hover, .ltv-preview:hover, .deliverability-preview:hover{
  transform: rotate(0deg) translateY(-4px);
  box-shadow: 0 30px 60px -18px rgba(0,0,0,.65);
  border-color: rgba(255, 255, 255, 0.22);
}

.diag-matrix__head{ display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; }
.diag-matrix__title{ font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; color: var(--paper-text-70); }
.diag-matrix__status{ font-family: var(--font-mono); font-size: 11px; color: #FF8A6B; background: rgba(255, 90, 54, 0.15); padding: 3px 8px; border-radius: 999px; }
.diag-matrix__bars{ display: flex; flex-direction: column; gap: 14px; margin-bottom: 20px; }
.diag-bar{ transition: transform 0.2s ease; }
.diag-bar:hover{ transform: translateX(3px); }
.diag-bar__meta{ display: flex; justify-content: space-between; font-size: 11.5px; font-family: var(--font-mono); margin-bottom: 6px; }
.diag-bar__meta b{ color: #FF8A6B; }
.diag-bar__track{ width: 100%; height: 6px; background: rgba(255,255,255,.1); border-radius: 999px; overflow: hidden; }
.diag-bar__fill{ height: 100%; border-radius: 999px; transition: width 0.6s cubic-bezier(0.16, 1, 0.3, 1); }
.diag-bar__fill--red{ background: var(--flash); }
.diag-bar__fill--yellow{ background: #FFB800; }
.diag-matrix__card{ background: rgba(255,255,255,0.06); border: 1px dashed var(--ink-line); padding: 12px; border-radius: 8px; display: flex; justify-content: space-between; align-items: center; font-family: var(--font-mono); font-size: 12px; transition: background 0.2s ease; }
.diag-matrix:hover .diag-matrix__card{ background: rgba(255, 90, 54, 0.1); border-color: rgba(255, 90, 54, 0.3); }
.diag-matrix__card b{ color: var(--flash); font-size: 15px; }

.optin-preview__badge{ font-family: var(--font-mono); font-size: 11px; color: var(--grow); margin-bottom: 12px; text-transform: uppercase; }
.optin-preview__box{ background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.12); border-radius: 10px; padding: 18px; }
.optin-preview__step{ font-family: var(--font-mono); font-size: 10px; color: var(--paper-text-70); }
.optin-preview__question{ font-size: 14.5px; font-weight: 600; margin: 6px 0 14px; }
.optin-preview__choices{ display: flex; gap: 10px; margin-bottom: 16px; }
.optin-preview__choice{ font-size: 12px; font-family: var(--font-mono); padding: 7px 14px; border-radius: 6px; background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.1); cursor: pointer; transition: all 0.2s ease; }
.optin-preview__choice:hover{ transform: translateY(-1px); border-color: var(--grow); color: var(--grow); }
.optin-preview__choice.selected{ background: rgba(63, 190, 131, 0.2); border-color: var(--grow); color: var(--grow); font-weight: 600; }
.optin-preview__stat{ display: flex; align-items: center; gap: 8px; font-family: var(--font-mono); font-size: 11px; color: var(--paper-text-70); border-top: 1px dashed rgba(255,255,255,0.12); padding-top: 12px; }

.tree-preview{ display: flex; flex-direction: column; align-items: center; gap: 14px; }
.tree-node--root{ width: 100%; background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.18); border-radius: 8px; padding: 10px 14px; font-family: var(--font-mono); font-size: 12px; text-align: center; }
.tree-branch{ display: grid; grid-template-columns: 1fr 1fr; gap: 12px; width: 100%; }
.tree-split{ display: flex; flex-direction: column; gap: 6px; }
.tree-tag{ font-family: var(--font-mono); font-size: 10px; color: var(--paper-text-70); text-align: center; }
.tree-leaf{ background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.1); border-radius: 8px; padding: 12px 10px; display: flex; flex-direction: column; gap: 4px; text-align: center; transition: all 0.2s ease; }
.tree-leaf:hover{ transform: translateY(-2px); border-color: rgba(255,255,255,0.3); background: rgba(255,255,255,0.08); }
.tree-leaf span{ font-size: 11px; color: var(--paper-text-70); }
.tree-leaf b{ font-family: var(--font-mono); font-size: 12px; color: var(--paper); }
.tree-leaf--accent{ border-color: var(--grow); background: rgba(63,190,131,0.08); }
.tree-leaf--accent:hover{ border-color: var(--grow); background: rgba(63,190,131,0.18); }
.tree-leaf--accent b{ color: var(--grow); }

.ltv-preview__head{ display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; font-family: var(--font-mono); font-size: 11px; }
.ltv-preview__tag{ color: var(--flash); background: rgba(255,90,54,0.15); padding: 2px 8px; border-radius: 999px; }
.ltv-timeline{ display: flex; justify-content: space-between; position: relative; margin-bottom: 20px; padding: 0 10px; }
.ltv-timeline::before{ content: ""; position: absolute; top: 7px; left: 18px; right: 18px; height: 2px; background: rgba(255,255,255,0.15); }
.ltv-step{ position: relative; display: flex; flex-direction: column; align-items: center; text-align: center; gap: 8px; z-index: 2; cursor: pointer; transition: transform 0.2s ease; }
.ltv-step:hover{ transform: translateY(-3px); }
.ltv-dot{ width: 14px; height: 14px; border-radius: 50%; background: var(--ink-line); border: 2px solid var(--paper); transition: transform 0.2s ease, border-color 0.2s ease; }
.ltv-step:hover .ltv-dot{ border-color: var(--flash); transform: scale(1.15); }
.ltv-dot--flash{ background: var(--flash); border-color: #fff; box-shadow: 0 0 10px var(--flash); }
.ltv-text strong{ display: block; font-size: 11.5px; font-family: var(--font-mono); }
.ltv-text span{ font-size: 10px; color: var(--paper-text-70); }
.ltv-preview__bottom{ border-top: 1px dashed rgba(255,255,255,0.15); padding-top: 14px; display: flex; justify-content: space-between; align-items: center; font-family: var(--font-mono); font-size: 12px; }
.ltv-preview__bottom b{ color: var(--grow); }

.deliverability-preview__head{ display: flex; align-items: center; gap: 12px; margin-bottom: 18px; }
.deliverability-preview__icon{ font-size: 24px; }
.deliverability-preview__head strong{ display: block; font-size: 13.5px; }
.deliverability-preview__head small{ font-size: 11px; color: var(--grow); font-family: var(--font-mono); }
.deliverability-grid{ display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.deliv-stat{ background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1); border-radius: 8px; padding: 12px; transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease; }
.deliv-stat:hover{ transform: translateY(-2px); border-color: rgba(255,255,255,0.25); background: rgba(255,255,255,0.08); }
.deliv-stat span{ display: block; font-family: var(--font-mono); font-size: 10.5px; color: var(--paper-text-70); margin-bottom: 4px; }
.deliv-stat b{ font-family: var(--font-mono); font-size: 16px; color: var(--paper); }
.deliv-stat--green{ color: var(--grow) !important; }

/* ===========================================================
   EMAIL DESIGN SHOWCASE
=========================================================== */
.showcase{ padding: 28px 0 72px; }
.showcase .section-title{ margin-bottom: 32px; }
.marquee{
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
}
.marquee__track{
  display: flex;
  align-items: flex-start;
  gap: 20px;
  width: max-content;
  animation: marquee-scroll 32s linear infinite;
  will-change: transform;
  padding: 4px 0;
}
.marquee__group{
  display: flex;
  align-items: flex-start;
  gap: 20px;
  flex: none;
}
.marquee:hover .marquee__track{ animation-play-state: paused; }
.marquee__card{
  width: 240px;
  flex: none;
  border-radius: 14px;
  border: 1px solid var(--paper-line);
  box-shadow: 0 20px 40px -26px rgba(20,23,31,.25);
  background: var(--paper-raised);
  overflow: hidden;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  transition: transform .2s ease, box-shadow .2s ease;
}
.marquee__card:hover{
  transform: translateY(-6px);
  box-shadow: 0 26px 46px -22px rgba(20,23,31,.35);
}
.marquee__frame{
  position: relative;
  width: 100%;
  height: 420px;
  overflow-x: hidden;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.marquee__frame::-webkit-scrollbar{ display: none; }
.marquee__img{
  width: 100%;
  height: auto;
  display: block;
  pointer-events: none;
}

.showcase__note{
  margin: 22px auto 0;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-text-70);
}
@keyframes marquee-scroll{
  from{ transform: translateX(0); }
  to{ transform: translateX(calc(-100% / 3)); }
}
@media (prefers-reduced-motion: reduce){
  .marquee{ overflow-x: auto; -webkit-mask-image: none; mask-image: none; }
  .marquee__track{ animation: none; }
}

/* ===========================================================
   PROCESS / TIMELINE
=========================================================== */
.process{ padding: 28px 0 80px; }
.process__layout{
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 48px;
  align-items: start;
}
.process__visual{ position: sticky; top: 96px; }
.process__chart-card{
  background: var(--paper-raised);
  border: 1px solid var(--paper-line);
  border-radius: var(--radius);
  padding: 26px 24px 22px;
  box-shadow: 0 24px 46px -30px rgba(20,23,31,.3);
  transform: rotate(-1.5deg);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.process__chart-card:hover{ transform: rotate(0deg) translateY(-2px); box-shadow: 0 28px 52px -28px rgba(20,23,31,.4); }
.process__chart-eyebrow{
  font-family: var(--font-mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--flash-dark);
  font-weight: 700;
  margin: 0 0 8px;
}
.process__chart-title{
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  margin: 0 0 16px;
  max-width: 220px;
}
.process__chart-svg{ width: 100%; height: auto; display:block; }
.process__chart-path{ stroke: var(--flash); stroke-width: 3; stroke-linecap: round; fill: none; }
.process__chart-dot{ fill: var(--flash-dark); }
.process__chart-labels{ display:flex; justify-content: space-between; font-family: var(--font-mono); font-size: 11px; color: var(--ink-text-70); margin-top: 6px; }
.process__chart-foot{ margin-top: 18px; padding-top: 16px; border-top: 1px dashed var(--paper-line); display:flex; flex-direction: column; gap: 4px; }
.process__chart-foot span{ font-family: var(--font-mono); font-size: 11px; color: var(--ink-text-70); }
.process__chart-num{ font-family: var(--font-mono); font-size: 26px; font-weight: 700; color: var(--flash-dark); }

.timeline{ border-top: 1px solid var(--paper-line); }
.timeline__item{
  display:grid;
  grid-template-columns: 150px 1fr;
  gap: 32px;
  padding: 26px 0;
  border-bottom: 1px solid var(--paper-line);
}
.timeline__day{
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 700;
  color: var(--flash-dark);
  background: rgba(255,90,54,.1);
  padding: 5px 10px;
  border-radius: 999px;
  display:inline-block;
}
.timeline__kicker{ font-family: var(--font-mono); font-size: 11.5px; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-text-70); margin: 0 0 4px; }
.timeline__body h3{ font-size: 20px; margin: 0 0 8px; }
.timeline__body p{ margin:0; max-width: 560px; color: var(--ink-text-70); }

/* ===========================================================
   BOOK / INTAKE FORM (No Guarantee Section)
=========================================================== */
.book{ background: var(--ink); color: var(--paper); padding: 72px 0; }
.book__grid{
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 48px;
  align-items: start;
}
.book__sub{ color: var(--paper-text-70); font-size: 16px; max-width: 460px; margin: 0 0 22px; }
.checklist li{
  position:relative;
  padding-left: 26px;
  margin-bottom: 12px;
  font-size: 14.5px;
  color: var(--paper-text-70);
}
.checklist li::before{
  content:"→";
  position:absolute; left:0; top:0;
  color: var(--flash);
  font-weight: 700;
}

.book__panel{
  background: var(--paper-raised);
  color: var(--ink-text);
  border-radius: var(--radius);
  padding: 32px 28px;
  box-shadow: 0 20px 48px -18px rgba(0,0,0,0.4);
}
.book__panel-eyebrow{
  font-family: var(--font-mono);
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--flash-dark);
  margin: 0 0 6px;
  font-weight: 700;
}
.book__panel-title{ font-family: var(--font-display); font-size: 20px; font-weight: 700; margin: 0 0 20px; }

/* 3-Field Intake Form Styles */
.audit-form{
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.audit-form__group{
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.audit-form__label{
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 700;
  color: var(--ink-text);
}
.audit-form__input{
  width: 100%;
  padding: 13px 16px;
  border-radius: 8px;
  border: 1px solid var(--paper-line);
  font-family: var(--font-body);
  font-size: 14.5px;
  background: #FFFFFF;
  color: var(--ink-text);
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.audit-form__input:focus{
  border-color: var(--flash);
  box-shadow: 0 0 0 3px rgba(255, 90, 54, 0.15);
}
.audit-submit-btn{
  margin-top: 4px;
  padding: 14px 20px;
  font-size: 15px;
}
.audit-form__fine{
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-text-70);
  text-align: center;
  margin: 6px 0 0;
}
.book__panel-note{ margin: 18px 0 0; font-size: 12.5px; color: var(--ink-text-70); text-align: center; }
.book__panel-note a{ color: var(--flash-dark); font-weight: 600; }

/* ===========================================================
   FOOTER
=========================================================== */
.footer{ 
  background: var(--ink); 
  color: var(--paper); 
  padding: 36px 0 calc(90px + env(safe-area-inset-bottom, 0px));
  text-align: center; 
  border-top: 1px solid var(--ink-line); 
}
.footer__cta{
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 auto 24px;
  max-width: 560px;
}
.footer__row{
  display:flex; align-items:center; justify-content:space-between;
  margin-top: 48px;
  padding-top: 22px;
  border-top: 1px solid var(--ink-line);
  text-align:left;
}
.nav__logo--footer{ color: var(--paper); }
.footer__links{ display:flex; gap: 24px; font-size: 13.5px; color: var(--paper-text-70); }
.footer__links a:hover{ color: var(--paper); }
.footer__legal{
  margin: 22px 0 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: rgba(239,237,226,.45);
}

/* ===========================================================
   RESPONSIVE
=========================================================== */
@media (max-width: 900px){
  .hero{ padding-top: 96px; padding-bottom: 56px; }
  .hero__grid{ grid-template-columns: 1fr; gap: 36px; }
  .hero__visual{ order: 2; }
  .hero__visual-wrap{ max-width: 320px; }
  .receipt{ transform: rotate(0deg); margin: 0 auto; }
  .stats__row{ grid-template-columns: 1fr; gap: 26px; }
  .book__grid{ grid-template-columns: 1fr; }
  .timeline__item{ grid-template-columns: 1fr; gap: 12px; }
  .services-tab__grid{ grid-template-columns: 1fr; padding: 28px 20px; gap: 28px; }
  .services-tab__deliverables{ grid-template-columns: 1fr; }
  .diag-matrix, .optin-preview, .tree-preview, .ltv-preview, .deliverability-preview{ transform: rotate(0deg); }
  .process__layout{ grid-template-columns: 1fr; }
  .process__visual{ position: static; max-width: 400px; margin: 32px auto 0; }
}

@media (max-width: 720px){
  .footer__row{ flex-direction: column; gap: 18px; align-items:flex-start; }
  .marquee__card{ width: 195px; }
  .marquee__frame{ height: 350px; }
}

/* ===========================================================
   FORM VALIDATION & INLINE ERRORS
=========================================================== */
.audit-form__group,
.lead-form__group {
  position: relative;
}

.audit-form__input.is-invalid,
.lead-input.is-invalid {
  border-color: #E63946 !important;
  background: #FFF8F8 !important;
  box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.18) !important;
}

.form-error {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  color: #E63946;
  margin-top: 4px;
  line-height: 1.3;
}

.lead-modal .form-error {
  margin-top: 6px;
  margin-bottom: 8px;
  text-align: center;
}

/* ===========================================================
   MODAL ANTI-FLICKER ENFORCEMENT
=========================================================== */
.lead-modal:not(.is-open) {
  display: none !important;
  opacity: 0 !important;
  visibility: hidden !important;
  pointer-events: none !important;
}

.lead-widget-wrap:not(.is-visible) {
  display: none !important;
}