/* ============================================
   TotemVault landing page
   External stylesheet (extracted from inline <style>)
   ============================================ */

@import url("https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@300;400;500;600;700;800&display=swap");

:root {
  --navy: #07090f; /* Deep dark background */
  --navy-light: rgba(20, 25, 40, 0.6); /* Glass card background */
  --gold: #00ffcc; /* Neon cyan accent */
  --green: #3b82f6; /* Electric blue accent */
  --text: #f8fafc;
  --text-light: #94a3b8;
  --bg: #07090f;
  --bg-soft: rgba(20, 25, 40, 0.4);
  --border: rgba(255, 255, 255, 0.1);
  --border-glow: rgba(0, 255, 204, 0.3);
  --max-width: 1100px;
  --radius: 12px;
  --shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 0 20px rgba(0, 255, 204, 0.2);
  --font-body: "Inter", sans-serif;
  --font-heading: "Outfit", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  font-size: 17px;
  position: relative;
  overflow-x: hidden;
}

/* Background blob injection for premium feel */
body::before {
  content: "";
  position: fixed;
  top: -20%;
  left: -10%;
  width: 600px;
  height: 600px;
  background: rgba(59, 130, 246, 0.15);
  filter: blur(120px);
  border-radius: 50%;
  z-index: -1;
  animation: float 20s infinite alternate;
}
body::after {
  content: "";
  position: fixed;
  bottom: -20%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: rgba(0, 255, 204, 0.15);
  filter: blur(120px);
  border-radius: 50%;
  z-index: -1;
  animation: float 20s infinite alternate-reverse;
}

@keyframes float {
  0% {
    transform: translate(0, 0) scale(1);
  }
  100% {
    transform: translate(50px, 100px) scale(1.1);
  }
}

h1,
h2,
h3,
h4,
h5,
h6,
.logo {
  font-family: var(--font-heading);
}

a {
  color: var(--gold);
  text-decoration: none;
  transition: all 0.3s ease;
}
a:hover {
  color: #fff;
  text-shadow: 0 0 10px var(--gold);
}

/* ============================================
   Header
   ============================================ */
header {
  background: rgba(7, 9, 15, 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  color: white;
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.logo {
  font-size: 1.4rem;
  font-weight: 700;
  color: white;
  letter-spacing: -0.5px;
}

.logo-mark {
  color: var(--gold);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

/* Language toggle */
.lang-toggle {
  display: inline-flex;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius);
  overflow: hidden;
}

.lang-toggle button {
  background: transparent;
  color: rgba(255, 255, 255, 0.7);
  border: none;
  padding: 0.4rem 0.9rem;
  font-size: 0.85rem;
  cursor: pointer;
  font-weight: 500;
  transition: all 0.15s;
}

.lang-toggle button.active {
  background: var(--gold);
  color: var(--navy);
  font-weight: 600;
}

.lang-toggle button:hover:not(.active) {
  color: white;
}

.header-cta {
  background: var(--gold);
  color: var(--navy);
  padding: 0.55rem 1.2rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.9rem;
  transition: all 0.15s;
}

.header-cta:hover {
  background: white;
  color: var(--navy);
}

/* ============================================
   Layout
   ============================================ */
main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

section {
  padding: 4rem 0;
}

section.alt {
  background: var(--bg-soft);
}

h1 {
  font-size: 2.6rem;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 1rem;
}
h2 {
  font-size: 1.9rem;
  line-height: 1.2;
  letter-spacing: -0.5px;
  margin-bottom: 1.2rem;
}
h3 {
  font-size: 1.25rem;
  margin-bottom: 0.6rem;
}

p {
  margin-bottom: 1rem;
  color: var(--text-light);
}

.lead {
  font-size: 1.15rem;
  color: var(--text);
}

/* ============================================
   Hero
   ============================================ */
.hero {
  padding: 8rem 0 6rem;
  text-align: center;
  background-image:
    linear-gradient(to bottom, rgba(7, 9, 15, 0.6), rgba(7, 9, 15, 0.95)),
    url("./assets/hero-bg.png");
  background-size: cover;
  background-position: center;
  position: relative;
}

.hero-anchor {
  margin-top: 1.2rem;
  font-size: 1rem;
  color: var(--text);
}
.hero-anchor strong {
  color: var(--gold);
  font-weight: 700;
}
.hero-secondary {
  margin-top: 0.4rem;
  font-size: 0.9rem;
}
.hero-secondary a {
  color: var(--text-light);
  border-bottom: 1px dotted var(--text-light);
}
.hero-secondary a:hover {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

.hero h1 {
  font-size: 3rem;
  background: linear-gradient(135deg, var(--gold) 0%, var(--green) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero .tagline {
  font-size: 1.3rem;
  color: var(--text-light);
  margin-bottom: 2rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.hero .hook {
  background: var(--bg-soft);
  border-left: 4px solid var(--gold);
  padding: 1.5rem 1.8rem;
  margin: 2.5rem auto;
  max-width: 750px;
  text-align: left;
  font-style: italic;
  font-size: 1.05rem;
  color: var(--text);
}

.hero-cta {
  display: inline-block;
  background: linear-gradient(135deg, var(--gold), var(--green));
  color: var(--navy);
  padding: 1rem 2rem;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 1.05rem;
  transition: all 0.3s;
  box-shadow: 0 0 15px var(--border-glow);
  text-shadow: none;
}

.hero-cta:hover {
  background: linear-gradient(135deg, #fff, var(--gold));
  color: var(--navy);
  transform: translateY(-2px);
  box-shadow: 0 5px 25px rgba(0, 255, 204, 0.6);
}

.hero-meta {
  margin-top: 1.5rem;
  font-size: 0.9rem;
  color: var(--text-light);
}

/* ============================================
   Sections
   ============================================ */
.section-title {
  text-align: center;
  margin-bottom: 2.5rem;
}

.section-title h2 {
  display: inline-block;
  position: relative;
}

.section-title h2::after {
  content: "";
  display: block;
  width: 50px;
  height: 3px;
  background: var(--gold);
  margin: 0.8rem auto 0;
  border-radius: 2px;
}

/* Problem section */
.problem-list {
  max-width: 700px;
  margin: 2rem auto 0;
}

.problem-list li {
  list-style: none;
  padding: 0.8rem 0 0.8rem 2rem;
  position: relative;
  border-bottom: 1px solid var(--border);
}

.problem-list li:last-child {
  border-bottom: none;
}

.problem-list li::before {
  content: "✕";
  position: absolute;
  left: 0;
  color: #c0392b;
  font-weight: 700;
  font-size: 1.2rem;
}

/* Pillars */
.pillars {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.25rem;
  margin-top: 2rem;
}

@media (max-width: 1024px) {
  .pillars {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  }
}

@media (max-width: 768px) {
  .pillars {
    grid-template-columns: 1fr;
  }
}

.pillar {
  background: var(--navy-light);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 1rem;
  box-shadow: var(--shadow);
  transition: all 0.2s;
  text-align: center;
}

.pillar:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.pillar-icon {
  width: 48px;
  height: 48px;
  background: var(--navy);
  color: var(--gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin: 0 auto 1rem;
}

.pillar h3 {
  color: var(--text);
}

/* Isolation section */
.isolation-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 2rem;
  align-items: center;
}

@media (max-width: 768px) {
  .isolation-grid {
    grid-template-columns: 1fr;
  }
}

.isolation-list {
  list-style: none;
}

.isolation-list li {
  padding: 0.6rem 0 0.6rem 2rem;
  position: relative;
}

.isolation-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--green);
  font-weight: 700;
  font-size: 1.2rem;
}

.isolation-visual {
  background: var(--navy);
  color: white;
  padding: 2rem;
  border-radius: var(--radius);
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 0.85rem;
  line-height: 1.8;
}

.isolation-visual .accent {
  color: var(--gold);
}
.isolation-visual .dim {
  opacity: 0.6;
}

/* Tiers */
.tiers {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2.5rem;
  align-items: stretch;
}

.tier {
  background: var(--navy-light);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
}

.tier.featured {
  border: 2px solid var(--gold);
  position: relative;
  transform: scale(1.02);
}

.tier.featured::before {
  content: "Most Popular";
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gold);
  color: var(--navy);
  padding: 0.25rem 0.9rem;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.tier h3 {
  color: var(--text);
  font-size: 1.4rem;
  margin-bottom: 0.5rem;
}

.tier-price {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.3rem;
}

.tier-price-unit {
  font-size: 0.9rem;
  color: var(--text-light);
  font-weight: 400;
}

.tier-features {
  list-style: none;
  margin: 1.5rem 0;
  flex-grow: 1;
}

.tier-features li {
  padding: 0.4rem 0 0.4rem 1.6rem;
  position: relative;
  font-size: 0.95rem;
}

.tier-features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--green);
  font-weight: 700;
}

.tier-cta {
  display: block;
  text-align: center;
  background: var(--navy);
  color: white;
  padding: 0.8rem;
  border-radius: var(--radius);
  font-weight: 600;
  margin-top: auto;
}

.tier-cta:hover {
  background: var(--gold);
  color: var(--navy);
}

/* Comparison band (between Isolation and Tiers) */
.comparison-band {
  background-image:
    linear-gradient(to right, rgba(7, 9, 15, 0.9), rgba(7, 9, 15, 0.4)),
    url("./assets/threat-detection.png");
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  color: white;
  text-align: center;
  padding: 6rem 0;
}

.comparison-inner {
  max-width: 820px;
  margin: 0 auto;
  padding: 3rem;
  background: var(--navy-light);
  backdrop-filter: blur(12px);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.comparison-heading {
  color: white;
  font-size: 1.65rem;
  line-height: 1.25;
  letter-spacing: -0.5px;
  margin-bottom: 1rem;
}

.comparison-body {
  color: rgba(255, 255, 255, 0.85);
  font-size: 1.05rem;
  line-height: 1.6;
  max-width: 720px;
  margin: 0 auto;
}

@media (max-width: 768px) {
  .comparison-band {
    padding: 2.25rem 0;
  }
  .comparison-heading {
    font-size: 1.35rem;
  }
  .comparison-body {
    font-size: 1rem;
  }
}

/* Pricing details (in-page section after Tiers) */
.tiers-note {
  text-align: center;
  margin: 2rem auto 0;
  max-width: 700px;
  font-size: 0.95rem;
  color: var(--text-light);
}
.tiers-note a {
  color: var(--gold);
  border-bottom: 1px dotted var(--navy);
}
.tiers-note a:hover {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

.pricing-table-wrap {
  max-width: var(--max-width);
  margin: 2rem auto;
  overflow-x: auto;
}

.pricing-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--navy-light);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  font-size: 0.95rem;
}

.pricing-table caption {
  text-align: left;
  padding: 1rem 1.2rem;
  font-weight: 700;
  color: var(--text);
  background: rgba(0, 255, 204, 0.1);
  border-bottom: 1px solid var(--border);
  border-radius: var(--radius) var(--radius) 0 0;
  font-size: 1rem;
  caption-side: top;
}

.pricing-table th,
.pricing-table td {
  padding: 0.85rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.pricing-table thead th {
  background: rgba(255, 255, 255, 0.05);
  color: var(--gold);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 700;
}

.pricing-table tbody tr:last-child td {
  border-bottom: none;
}

.pricing-table .row-featured {
  background: rgba(212, 160, 78, 0.06);
}

.pricing-table .row-badge {
  display: inline-block;
  background: var(--gold);
  color: var(--navy);
  padding: 0.15rem 0.6rem;
  border-radius: 10px;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-left: 0.4rem;
  vertical-align: middle;
}

.pricing-tables-pair {
  max-width: var(--max-width);
  margin: 2rem auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

@media (max-width: 768px) {
  .pricing-tables-pair {
    grid-template-columns: 1fr;
  }
}

.pricing-notes {
  max-width: 800px;
  margin: 2rem auto 0;
  padding: 0 1rem;
}

.pricing-notes p {
  margin-bottom: 1rem;
  font-size: 0.95rem;
}

.pricing-source {
  font-size: 0.85rem !important;
  color: var(--text-light);
  border-top: 1px solid var(--border);
  padding-top: 1rem;
}

.pricing-source code {
  background: white;
  padding: 0.1rem 0.4rem;
  border-radius: 3px;
  font-size: 0.85rem;
  border: 1px solid var(--border);
}

.pricing-overage {
  font-size: 0.92rem !important;
  color: var(--text-light) !important;
  margin-top: 1rem !important;
  border-top: 1px solid var(--border);
  padding-top: 1rem;
}

.pricing-overage strong {
  color: var(--gold);
}

/* ============================================
   404 page
   ============================================ */
.hero.notfound {
  padding: 6rem 0 5rem;
}

.notfound-code {
  font-size: 9rem;
  font-weight: 900;
  color: var(--gold);
  letter-spacing: -4px;
  line-height: 1;
  margin: 0 0 1.5rem 0;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  background: none;
  -webkit-background-clip: initial;
  background-clip: initial;
  -webkit-text-fill-color: initial;
}

.notfound-cta-row {
  margin-top: 2.5rem;
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
}

@media (max-width: 768px) {
  .notfound-code {
    font-size: 6.5rem;
  }
}

/* Founder / Trust section (between Pricing details and Process) */
.founder-trust {
  padding: 4rem 0;
}

.founder-inner {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.founder-prose {
  margin-top: 1.5rem;
}

.founder-body {
  color: var(--text);
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

.founder-body:last-child {
  margin-bottom: 0;
}

.founder-trust-signals {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  display: grid;
  gap: 0.6rem;
}

.founder-signal {
  color: var(--text-light);
  font-size: 0.95rem;
  margin-bottom: 0;
}

.founder-signal strong {
  color: var(--gold);
  font-weight: 700;
}

/* Broker table (between Compliance and CTA) */
.broker {
  padding: 4rem 0;
  background: var(--bg-soft);
}

.broker-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.broker .section-title p.lead {
  max-width: 720px;
  margin: 0.5rem auto 0;
  color: var(--text);
}

/* Broker two-column table — reuse .pricing-table for visual consistency
   but with simpler two-column structure. */
.broker-grid {
  margin-top: 2rem;
  font-size: 0.95rem;
}

.broker-grid th {
  text-align: left;
  width: 40%;
}

.broker-grid th:last-child {
  width: 60%;
}

.broker-grid tbody tr:nth-child(even) {
  background: rgba(15, 30, 61, 0.02);
}

.broker-grid tbody tr:hover {
  background: rgba(212, 160, 78, 0.05);
}

.broker-grid td:first-child {
  font-weight: 500;
  color: var(--text);
}

.broker-grid td:last-child {
  color: var(--text);
}

@media (max-width: 768px) {
  .broker-grid th,
  .broker-grid td {
    padding: 0.7rem 0.75rem;
    font-size: 0.9rem;
  }
}

/* FAQ section (between Founder/Trust and Process) */
.faq {
  padding: 4rem 0;
}

.faq-inner {
  max-width: 820px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.faq-list {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.faq-item {
  background: var(--navy-light);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: box-shadow 0.15s;
}

.faq-item[open] {
  box-shadow: var(--shadow-lg);
}

.faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 1.1rem 1.4rem;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  position: relative;
  padding-right: 3rem;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 1.3rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--gold);
  font-size: 1.5rem;
  font-weight: 400;
  line-height: 1;
  transition: transform 0.2s;
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-item summary:hover {
  color: var(--gold);
}

.faq-body {
  padding: 0 1.4rem 1.2rem 1.4rem;
  border-top: 1px solid var(--border);
  margin-top: -1px;
}

.faq-body p {
  color: var(--text-light);
  font-size: 0.98rem;
  line-height: 1.6;
  margin-top: 0.8rem;
  margin-bottom: 0;
}

@media (max-width: 768px) {
  .faq-item summary {
    font-size: 0.98rem;
    padding: 0.95rem 1.1rem;
    padding-right: 2.6rem;
  }
  .faq-body {
    padding: 0 1.1rem 0.95rem 1.1rem;
  }
}

/* ============================================
   Process steps
   ============================================ */
.process {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
  counter-reset: step;
}

.step {
  text-align: center;
  padding: 1.5rem;
  position: relative;
}

.step::before {
  counter-increment: step;
  content: counter(step);
  display: block;
  width: 50px;
  height: 50px;
  margin: 0 auto 1rem;
  background: var(--gold);
  color: var(--navy);
  border-radius: 50%;
  line-height: 50px;
  font-weight: 700;
  font-size: 1.3rem;
}

.step h3 {
  color: var(--text);
  margin-bottom: 0.4rem;
}

/* Compliance */
.compliance-explain {
  max-width: 720px;
  margin: 1.25rem auto 0;
  font-size: 0.92rem;
  color: var(--text-light);
  text-align: center;
  line-height: 1.5;
}

.compliance-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.8rem;
  margin: 2rem 0;
}

.compliance-list span {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  padding: 0.5rem 1.1rem;
  border-radius: 999px;
  font-size: 0.9rem;
  color: var(--text);
  font-weight: 500;
}

/* CTA */
.cta-section {
  background: var(--navy);
  color: white;
  text-align: center;
  padding: 5rem 0;
}

.cta-section h2 {
  color: white;
}

.cta-section p {
  color: rgba(255, 255, 255, 0.85);
  max-width: 600px;
  margin: 0 auto 2rem;
  font-size: 1.1rem;
}

.cta-section .hero-cta {
  background: var(--gold);
  color: var(--navy);
  font-size: 1.1rem;
  padding: 1.1rem 2.4rem;
}

.cta-section .hero-cta:hover {
  background: white;
}

/* Contact form */
.contact-form {
  max-width: 500px;
  margin: 2rem auto 0;
  display: grid;
  gap: 1rem;
}

.contact-form input,
.contact-form textarea,
.contact-form select {
  width: 100%;
  padding: 0.8rem 1rem;
  border: none;
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 1rem;
}

.contact-form input:focus,
.contact-form textarea:focus,
.contact-form select:focus {
  outline: 2px solid var(--gold);
}

.contact-form textarea {
  min-height: 100px;
  resize: vertical;
}

.contact-form button {
  background: var(--gold);
  color: var(--navy);
  border: none;
  padding: 1rem;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
}

.contact-form button:hover {
  background: white;
}

/* Footer */
footer {
  background: #0a1628;
  color: rgba(255, 255, 255, 0.7);
  padding: 2.5rem 0 1.5rem;
  font-size: 0.9rem;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  text-align: center;
}

.footer-inner p {
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 0.6rem;
}

.footer-links {
  margin-bottom: 1.5rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  margin: 0 0.8rem;
}

.footer-links a:hover {
  color: var(--gold);
}

/* ============================================
   Language system
   ============================================ */
[data-lang]:not(.active) {
  display: none;
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }
  .hero h1 {
    font-size: 2.2rem;
  }
  h2 {
    font-size: 1.5rem;
  }
  .hero .tagline {
    font-size: 1.1rem;
  }
  section {
    padding: 3rem 0;
  }
  .header-right {
    gap: 0.8rem;
  }
  .header-cta {
    padding: 0.45rem 0.9rem;
    font-size: 0.85rem;
  }

  /* Animations */
  .scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition:
      opacity 0.8s ease,
      transform 0.8s ease;
  }
  .scroll-reveal.visible {
    opacity: 1;
    transform: translateY(0);
  }
  .tier.featured {
    transform: none;
  }
}

.isolation-diagram {
  width: 100%;
  max-width: 560px;
  border-radius: 8px;
}
.diagram-wrap {
  margin: 2rem 0;
  text-align: center;
}
.diagram-wrap img {
  width: 100%;
  max-width: 800px;
  border-radius: 8px;
}
.diagram-caption {
  margin-top: 0.75rem;
  font-size: 0.875rem;
  color: var(--text-muted, rgba(255, 255, 255, 0.5));
}

.footer-disclaimer {
  text-align: center;
  padding: 0.5rem;
  background: #090f16;
  color: rgba(255, 255, 255, 0.4);
  font-size: 0.75rem;
}