/* ==========================================================================
   Dalva Luz Studio Hair — Design tokens
   Deep plum/aubergine + lilac + warm gold, Playfair Display + Poppins
   ========================================================================== */

:root {
  --plum-950: #1c0f26;
  --plum-900: #241531;
  --plum-800: #2f1c40;
  --plum-700: #3c274f;
  --lilac-200: #e6dbf5;
  --lilac-300: #cbb2ea;
  --lilac-500: #a880d6;
  --lilac-700: #7d54ad;
  --gold-400: #e3c495;
  --gold-500: #d4af7a;
  --gold-700: #a9803f;
  --cream-50: #faf7f2;
  --cream-100: #f3ede3;
  --ink-900: #241a2c;
  --ink-700: #4a3d55;
  --white: #ffffff;

  --font-display: "Playfair Display", "Georgia", serif;
  --font-body: "Poppins", "Segoe UI", sans-serif;

  --radius-lg: 22px;
  --radius-md: 14px;
  --radius-sm: 8px;

  --shadow-soft: 0 20px 60px -20px rgba(28, 15, 38, 0.45);
  --shadow-card: 0 10px 30px -12px rgba(28, 15, 38, 0.25);

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { overflow-x: hidden; }

@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 {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink-900);
  background: var(--cream-50);
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, p { margin: 0; }

.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--gold-700);
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--gold-700);
  display: inline-block;
}
.on-dark .eyebrow { color: var(--gold-400); }
.on-dark .eyebrow::before { background: var(--gold-400); }

h1, h2, h3 { font-family: var(--font-display); font-weight: 600; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 15px 28px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), background 0.35s var(--ease);
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-gold {
  background: linear-gradient(135deg, var(--gold-400), var(--gold-700));
  color: var(--plum-950);
  box-shadow: 0 12px 26px -10px rgba(212, 175, 122, 0.6);
}
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 16px 32px -10px rgba(212, 175, 122, 0.75); }
.btn-outline-dark {
  background: transparent;
  border-color: rgba(255,255,255,0.35);
  color: var(--white);
}
.btn-outline-dark:hover { border-color: var(--gold-400); color: var(--gold-400); }
.btn-line {
  background: transparent;
  border-color: var(--plum-700);
  color: var(--plum-900);
}
.btn-line:hover { border-color: var(--gold-700); color: var(--gold-700); }
.btn svg { width: 16px; height: 16px; flex-shrink: 0; }

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(28, 15, 38, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 78px;
}
.logo {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 27px;
  color: var(--white);
  letter-spacing: 0.01em;
}
.logo span { color: var(--gold-400); }
.logo img {
  height: 40px;
  width: auto;
  display: block;
}
.footer-grid .logo img { height: 100px; margin-bottom: 4px; }

.nav-links {
  display: flex;
  gap: 34px;
  align-items: center;
}
.nav-links a {
  font-size: 14.5px;
  color: var(--lilac-200);
  position: relative;
  padding: 6px 0;
  transition: color 0.25s var(--ease);
}
.nav-links a:hover { color: var(--white); }
.nav-links a::after {
  content: "";
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 1px;
  background: var(--gold-400);
  transition: width 0.3s var(--ease);
}
.nav-links a:hover::after { width: 100%; }

.header-cta { display: flex; align-items: center; gap: 18px; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  width: 34px; height: 34px;
  position: relative;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: "";
  position: absolute;
  left: 7px; right: 7px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}
.nav-toggle span { top: 16px; }
.nav-toggle span::before { top: -7px; }
.nav-toggle span::after { top: 7px; }
.nav-toggle.active span { background: transparent; }
.nav-toggle.active span::before { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span::after { transform: translateY(-7px) rotate(-45deg); }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  position: relative;
  background: radial-gradient(120% 140% at 78% -10%, var(--plum-800) 0%, var(--plum-900) 46%, var(--plum-950) 100%);
  padding: 168px 0 120px;
  overflow: hidden;
  color: var(--white);
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1px 1px at 20% 30%, rgba(230,219,245,0.35) 0, transparent 100%),
    radial-gradient(1px 1px at 60% 70%, rgba(230,219,245,0.25) 0, transparent 100%),
    radial-gradient(1px 1px at 85% 20%, rgba(230,219,245,0.3) 0, transparent 100%),
    radial-gradient(1px 1px at 40% 85%, rgba(230,219,245,0.2) 0, transparent 100%);
  pointer-events: none;
}
.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 40px;
  align-items: center;
}
.hero-copy h1 {
  font-size: clamp(34px, 4.2vw, 52px);
  line-height: 1.14;
  margin: 20px 0 22px;
  letter-spacing: -0.01em;
}
.hero-copy h1 em {
  font-style: italic;
  color: var(--gold-400);
}
.hero-copy p.lead {
  font-size: 17px;
  color: var(--lilac-200);
  max-width: 480px;
  margin-bottom: 34px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 30px; }
.hero-trust {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 13.5px;
  color: var(--lilac-300);
  max-width: 420px;
}
.hero-trust .dots { display: flex; }
.hero-trust .dots .avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  border: 2px solid var(--plum-900);
  margin-left: -10px;
  flex-shrink: 0;
  overflow: hidden;
  display: block;
}
.hero-trust .dots .avatar svg { width: 100%; height: 100%; display: block; }
.hero-trust .dots .avatar:first-child { margin-left: 0; }

/* Scan diagram (signature element) */
.scan-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  max-width: 460px;
  margin: 0 auto;
}
.scan-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px dashed rgba(203, 178, 234, 0.35);
}
.scan-ring.r2 { inset: 13%; border-style: solid; border-color: rgba(203,178,234,0.18); }
.scan-ring.r3 { inset: 30%; border: 1px solid rgba(212,175,122,0.4); }
.scan-core {
  position: absolute;
  inset: 42%;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, var(--gold-400), var(--gold-700) 70%);
  box-shadow: 0 0 40px 8px rgba(212,175,122,0.45);
}
.scan-sweep {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: conic-gradient(from 0deg, rgba(212,175,122,0.55), transparent 26%);
  animation: sweep 6s linear infinite;
  mix-blend-mode: screen;
}
@keyframes sweep { to { transform: rotate(360deg); } }
.scan-wave {
  position: absolute;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  width: 34%;
  opacity: 0.9;
}
.scan-tag {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(47, 28, 64, 0.85);
  border: 1px solid rgba(203,178,234,0.25);
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 12.5px;
  color: var(--lilac-200);
  backdrop-filter: blur(6px);
  white-space: nowrap;
}
.scan-tag i {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--gold-400);
  display: inline-block;
  box-shadow: 0 0 8px 2px rgba(212,175,122,0.7);
}
.scan-tag.t1 { top: 6%; left: 2%; }
.scan-tag.t2 { top: 46%; right: -4%; }
.scan-tag.t3 { bottom: 8%; left: 12%; }

/* ==========================================================================
   Section basics
   ========================================================================== */
.section { padding: 108px 0; }
.section-dark { background: var(--plum-950); color: var(--white); }
.section-head { max-width: 640px; margin-bottom: 56px; }
.section-head h2 {
  font-size: clamp(26px, 3vw, 36px);
  margin-top: 16px;
  line-height: 1.24;
}
.section-head p { margin-top: 16px; color: var(--ink-700); font-size: 16px; }
.on-dark .section-head p { color: var(--lilac-200); }

/* ==========================================================================
   Problems / causes
   ========================================================================== */
.problem-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-bottom: 60px;
}
.problem-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 30px 26px;
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(125, 84, 173, 0.08);
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease);
}
.problem-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-soft); }
.problem-icon {
  width: 46px; height: 46px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--lilac-200), var(--cream-100));
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
}
.problem-icon svg { width: 22px; height: 22px; stroke: var(--lilac-700); }
.problem-card h3 { font-size: 18.5px; margin-bottom: 8px; }
.problem-card p { font-size: 14.5px; color: var(--ink-700); }

.causes-panel {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-card);
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 40px;
  align-items: center;
}
.causes-panel h3 { font-size: 23px; line-height: 1.3; margin-bottom: 14px; }
.causes-panel > div > p { color: var(--ink-700); font-size: 15px; }
.causes-list { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 20px; }
.causes-list li {
  display: flex; align-items: center; gap: 10px;
  font-size: 14.5px;
  padding: 12px 14px;
  background: var(--cream-50);
  border-radius: 10px;
}
.causes-list svg { width: 16px; height: 16px; stroke: var(--gold-700); flex-shrink: 0; }

/* ==========================================================================
   Treatments grid
   ========================================================================== */
.treat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.treat-item {
  background: var(--plum-800);
  border: 1px solid rgba(203,178,234,0.14);
  border-radius: var(--radius-md);
  padding: 22px 20px;
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease);
}
.treat-item:hover { transform: translateY(-4px); border-color: var(--gold-500); }
.treat-item .num { font-family: var(--font-display); font-style: italic; color: var(--gold-400); font-size: 14px; }
.treat-item h4 { font-size: 15.5px; margin-top: 10px; color: var(--white); font-weight: 500; line-height: 1.4; }

/* ==========================================================================
   Process
   ========================================================================== */
.process-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
}
.process-step {
  padding: 0 22px 0 0;
  position: relative;
}
.process-step:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 27px; right: -1px;
  width: calc(100% - 44px);
  border-top: 1px dashed var(--lilac-500);
  opacity: 0.4;
}
.process-num {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 30px;
  color: var(--lilac-700);
  margin-bottom: 18px;
  display: block;
}
.process-step h3 { font-size: 18px; margin-bottom: 10px; }
.process-step p { font-size: 14.5px; color: var(--ink-700); }

/* ==========================================================================
   Results / before-after
   ========================================================================== */
.results-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.ba-slider {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  aspect-ratio: 4/5;
  user-select: none;
}
.ba-slider .ba-after, .ba-slider .ba-before {
  position: absolute; inset: 0;
}
.ba-slider .ba-after img, .ba-slider .ba-before img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.ba-slider .ba-before {
  clip-path: inset(0 50% 0 0);
}
.ba-tag {
  position: absolute; top: 16px;
  font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase;
  padding: 6px 12px; border-radius: 999px;
  background: rgba(0,0,0,0.35); color: #fff;
  font-family: var(--font-body); font-style: normal; font-weight: 600;
}
.ba-tag.left { left: 16px; }
.ba-tag.right { right: 16px; }
.ba-handle {
  position: absolute; top: 0; bottom: 0; left: 50%;
  width: 3px; background: var(--gold-400);
  cursor: ew-resize;
  transform: translateX(-50%);
}
.ba-handle::after {
  content: "";
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  width: 42px; height: 42px; border-radius: 50%;
  background: var(--gold-400);
  box-shadow: 0 6px 18px rgba(0,0,0,0.35);
}
.ba-handle::before {
  content: "\2194";
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%,-56%);
  color: var(--plum-950);
  font-size: 18px; font-weight: 700;
  z-index: 2;
}
.ba-caption { text-align: center; font-size: 13px; color: var(--ink-700); margin-top: 14px; }

.results-copy ul { margin: 26px 0 32px; display: grid; gap: 14px; }
.results-copy li { display: flex; gap: 12px; font-size: 15px; align-items: flex-start; }
.results-copy li svg { width: 18px; height: 18px; stroke: var(--gold-700); flex-shrink: 0; margin-top: 2px; }

/* ==========================================================================
   About
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 56px;
  align-items: center;
}
.about-photo {
  border-radius: var(--radius-lg);
  aspect-ratio: 3/4;
  background: linear-gradient(155deg, var(--plum-700), var(--plum-950));
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}
.about-photo img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
}
.about-photo::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(circle at 30% 20%, rgba(212,175,122,0.25), transparent 55%);
  pointer-events: none;
  z-index: 1;
}
.about-photo .initials {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-style: italic;
  font-size: 90px; color: rgba(255,255,255,0.16);
}
.about-copy p { color: var(--ink-700); font-size: 15.5px; margin-bottom: 16px; }
.credential-list { display: grid; gap: 12px; margin-top: 26px; }
.credential-item {
  display: flex; align-items: center; gap: 14px;
  background: var(--white);
  border: 1px solid rgba(125,84,173,0.1);
  border-radius: 12px;
  padding: 14px 18px;
  font-size: 14.5px;
  box-shadow: var(--shadow-card);
}
.credential-item .ic {
  width: 34px; height: 34px;
  border-radius: 9px;
  background: var(--lilac-200);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.credential-item svg { width: 17px; height: 17px; stroke: var(--lilac-700); }

/* ==========================================================================
   FAQ
   ========================================================================== */
.faq-list { max-width: 780px; }
.faq-item {
  border-bottom: 1px solid rgba(74,61,85,0.12);
}
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 24px 4px;
  background: none;
  border: none;
  text-align: left;
  font-size: 16.5px;
  font-weight: 500;
  color: var(--ink-900);
}
.faq-q .plus {
  width: 22px; height: 22px;
  position: relative;
  flex-shrink: 0;
}
.faq-q .plus::before, .faq-q .plus::after {
  content: "";
  position: absolute;
  background: var(--gold-700);
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}
.faq-q .plus::before { top: 50%; left: 0; right: 0; height: 2px; transform: translateY(-1px); }
.faq-q .plus::after { left: 50%; top: 0; bottom: 0; width: 2px; transform: translateX(-1px); }
.faq-item.open .plus::after { transform: translateX(-1px) rotate(90deg); opacity: 0; }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s var(--ease);
  font-size: 14.5px;
  color: var(--ink-700);
}
.faq-a p { padding: 0 4px 24px; max-width: 620px; }
.faq-item.open .faq-a { max-height: 240px; }

/* ==========================================================================
   Contact
   ========================================================================== */
.contact-panel {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}
.contact-info {
  background: var(--plum-950);
  color: var(--white);
  padding: 46px 42px;
}
.contact-info h3 { font-size: 24px; margin-bottom: 12px; }
.contact-info > p { color: var(--lilac-200); font-size: 14.5px; margin-bottom: 30px; }
.contact-row { margin-bottom: 20px; }
.contact-row .label {
  font-size: 11.5px; text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--gold-400); margin-bottom: 6px; font-weight: 600;
}
.contact-row .val { font-size: 15px; color: var(--white); }
.contact-btns { display: flex; gap: 12px; margin-top: 28px; flex-wrap: wrap; }
.contact-link {
  color: var(--white);
  border-bottom: 1px solid rgba(255,255,255,0.3);
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}
.contact-link:hover { color: var(--gold-400); border-color: var(--gold-400); }

.map-panel {
  background: linear-gradient(135deg, #ded6cd, #c9beb0);
  position: relative;
  min-height: 340px;
}
.map-panel iframe { filter: grayscale(8%) contrast(1.02); }
.map-panel .map-fake {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(120,110,95,0.18) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,110,95,0.18) 1px, transparent 1px);
  background-size: 34px 34px;
}
.map-pin {
  position: absolute; top: 48%; left: 46%;
  width: 34px; height: 34px;
  transform: translate(-50%,-100%);
}
.map-pin svg { width: 100%; height: 100%; filter: drop-shadow(0 6px 10px rgba(0,0,0,0.3)); }
.map-hint {
  position: absolute; bottom: 16px; left: 16px; right: 16px;
  font-size: 12px; color: var(--ink-700);
  background: rgba(255,255,255,0.85);
  padding: 8px 12px; border-radius: 8px;
}

/* ==========================================================================
   Final CTA + footer
   ========================================================================== */
.final-cta {
  background: linear-gradient(120deg, var(--gold-400), var(--gold-700));
  padding: 90px 0;
  text-align: center;
  color: var(--plum-950);
}
.final-cta .eyebrow { color: var(--plum-800); }
.final-cta .eyebrow::before { background: var(--plum-800); }
.final-cta h2 { font-size: clamp(26px, 3.4vw, 38px); margin: 18px 0 12px; max-width: 640px; margin-inline: auto; }
.final-cta p { color: rgba(28,15,38,0.75); margin-bottom: 30px; }

.site-footer {
  background: var(--plum-950);
  color: var(--lilac-200);
  padding: 62px 0 26px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-grid .logo { display: block; margin-bottom: 14px; }
.footer-grid p { font-size: 13.5px; max-width: 300px; color: rgba(230,219,245,0.6); }
.footer-grid h4 {
  font-size: 12px; text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--gold-400); margin-bottom: 16px; font-weight: 600;
}
.footer-grid ul { display: grid; gap: 10px; font-size: 14px; }
.footer-grid a:hover { color: var(--white); }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 22px; font-size: 12.5px; color: rgba(230,219,245,0.45);
  flex-wrap: wrap; gap: 10px;
}
.footer-credit {
  text-align: center;
  font-size: 12px;
  color: rgba(230,219,245,0.4);
  padding-top: 16px;
  margin-top: 16px;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.footer-credit strong {
  color: var(--gold-400);
  font-weight: 600;
}
.footer-credit a { color: var(--gold-400); }
.footer-credit a:hover { text-decoration: underline; }

/* Floating WhatsApp button */
.wa-float {
  position: fixed;
  right: 24px; bottom: 24px;
  width: 58px; height: 58px;
  border-radius: 50%;
  background: #25d366;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 12px 26px -8px rgba(37, 211, 102, 0.6);
  z-index: 90;
  transition: transform 0.3s var(--ease);
}
.wa-float:hover { transform: scale(1.08); }
.wa-float svg { width: 28px; height: 28px; fill: #fff; }

/* Reveal on scroll */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.in { opacity: 1; transform: translateY(0); }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; }
  .scan-wrap { max-width: 320px; margin-top: 20px; }
  .problem-cards { grid-template-columns: 1fr 1fr; }
  .causes-panel { grid-template-columns: 1fr; }
  .treat-grid { grid-template-columns: repeat(2, 1fr); }
  .process-list { grid-template-columns: 1fr 1fr; row-gap: 40px; }
  .process-step:not(:last-child)::after { display: none; }
  .results-grid { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .contact-panel { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
}

@media (max-width: 720px) {
  .nav-links, .header-cta { display: none; }
  .nav-toggle { display: block; width: 44px; height: 44px; }
  .nav-toggle span { top: 21px; }
  .nav-toggle span::before { top: -7px; }
  .nav-toggle span::after { top: 7px; }
  .site-header .container { height: 68px; }
  .mobile-nav { top: 68px; }
  .logo img { height: 34px; }
  .hero { padding: 112px 0 64px; }
  .section { padding: 64px 0; }
  .section-head { margin-bottom: 36px; }
  .problem-cards { grid-template-columns: 1fr; }
  .treat-grid { grid-template-columns: 1fr 1fr; }
  .causes-list { grid-template-columns: 1fr; }
  .causes-panel { padding: 26px; }
  .process-list { grid-template-columns: 1fr; row-gap: 30px; }
  .hero-actions .btn { width: 100%; }
  .hero-trust { flex-wrap: wrap; }
  .scan-wrap { max-width: 240px; }
  .scan-tag { font-size: 11px; padding: 6px 10px; }
  .scan-tag.t2 { right: 0; }
  .contact-info { padding: 32px 24px; }
  .faq-item.open .faq-a { max-height: 400px; }
}

@media (max-width: 480px) {
  .container { padding: 0 18px; }
  .hero-copy h1 { margin: 16px 0 18px; }
  .hero-actions { flex-direction: column; }
  .scan-wrap { max-width: 200px; }
  .scan-tag.t1 { left: 0; }
  .scan-tag.t3 { left: 4%; }
  .treat-grid { grid-template-columns: 1fr; }
  .treat-item { padding: 18px 16px; }
  .contact-btns { flex-direction: column; }
  .contact-btns .btn { width: 100%; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .wa-float { right: 16px; bottom: 16px; width: 52px; height: 52px; }
  .wa-float svg { width: 24px; height: 24px; }
}

/* Mobile nav panel */
.mobile-nav {
  position: fixed;
  top: 78px; left: 0; right: 0;
  background: var(--plum-950);
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 24px 28px;
  display: none;
  flex-direction: column;
  gap: 4px;
  z-index: 99;
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  padding: 14px 4px;
  color: var(--lilac-200);
  font-size: 15.5px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.mobile-nav .btn { margin-top: 14px; }