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

:root {
  --blue: #2563eb;
  --blue-dark: #1d4ed8;
  --navy: #0f172a;
  --grey: #64748b;
  --light: #f8fafc;
  --border: #e2e8f0;
  --white: #ffffff;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--navy);
  background: var(--white);
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

/* NAV */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 40px;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--blue);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 15px;
}

.nav-links a {
  color: var(--grey);
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--navy);
}

.nav-instagram {
  display: flex;
  align-items: center;
  gap: 6px;
}

.btn-nav {
  padding: 9px 18px;
  background: var(--blue);
  color: var(--white) !important;
  border-radius: 8px;
  font-weight: 600;
  transition: background 0.2s;
}

.btn-nav:hover {
  background: var(--blue-dark) !important;
}

/* HERO */
.hero {
  padding: 100px 40px 80px;
  text-align: center;
  background: linear-gradient(160deg, #eff6ff 0%, #ffffff 60%);
}

.hero-inner {
  max-width: 760px;
  margin: 0 auto;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 20px;
  padding: 6px 14px;
  background: #dbeafe;
  color: var(--blue);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
}

h1 {
  font-size: clamp(36px, 5vw, 60px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 24px;
}

.hero-sub {
  font-size: 18px;
  color: var(--grey);
  max-width: 580px;
  margin: 0 auto 40px;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-block;
  padding: 14px 28px;
  background: var(--blue);
  color: var(--white);
  border-radius: 10px;
  font-weight: 700;
  font-size: 16px;
  transition: background 0.2s, transform 0.1s;
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  background: var(--blue-dark);
  transform: translateY(-1px);
}

.btn-ghost {
  display: inline-block;
  padding: 14px 28px;
  background: transparent;
  color: var(--navy);
  border-radius: 10px;
  font-weight: 600;
  font-size: 16px;
  border: 1.5px solid var(--border);
  transition: border-color 0.2s;
}

.btn-ghost:hover {
  border-color: #94a3b8;
}

.btn-white {
  display: inline-block;
  padding: 14px 28px;
  background: var(--white);
  color: var(--blue);
  border-radius: 10px;
  font-weight: 700;
  font-size: 16px;
  transition: opacity 0.2s;
}

.btn-white:hover {
  opacity: 0.9;
}

.btn-full {
  width: 100%;
  text-align: center;
}

/* PROOF BAR */
.proof-bar {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  padding: 16px 40px;
  background: var(--navy);
  color: #94a3b8;
  font-size: 14px;
}

.dot {
  color: #475569;
}

/* SECTIONS */
.section {
  padding: 90px 40px;
}

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

.container {
  max-width: 1100px;
  margin: 0 auto;
}

.container-narrow {
  max-width: 640px;
}

h2 {
  font-size: clamp(28px, 3.5vw, 42px);
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 12px;
  text-align: center;
}

.section-sub {
  text-align: center;
  color: var(--grey);
  font-size: 17px;
  margin-bottom: 56px;
}

/* HOW IT WORKS */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.step {
  padding: 32px;
  border: 1.5px solid var(--border);
  border-radius: 16px;
  background: var(--white);
}

.step-num {
  display: block;
  font-size: 13px;
  font-weight: 700;
  color: var(--blue);
  letter-spacing: 1px;
  margin-bottom: 12px;
}

.step h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

.step p {
  color: var(--grey);
  font-size: 15px;
}

/* FEATURES */
.features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.feature-card {
  padding: 28px 24px;
  border: 1.5px solid var(--border);
  border-radius: 14px;
  background: var(--white);
}

.feature-icon {
  font-size: 28px;
  margin-bottom: 14px;
}

.feature-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 14px;
  color: var(--grey);
}

/* INDUSTRIES */
.industries {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

.industries span {
  padding: 10px 20px;
  border: 1.5px solid var(--border);
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  background: var(--white);
}

/* ROI CALCULATOR */
.calculator {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: start;
}

.calc-inputs {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.calc-input-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.calc-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.calc-label-row label {
  font-weight: 600;
  font-size: 15px;
  margin: 0;
}

.calc-label-row strong {
  font-size: 20px;
  color: var(--blue);
}

input[type="range"] {
  -webkit-appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 999px;
  background: #dbeafe;
  outline: none;
  cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--blue);
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(37,99,235,0.35);
}

input[type="range"]::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--blue);
  cursor: pointer;
  border: none;
}

.calc-range-labels {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--grey);
}

.calc-results {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.calc-result-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 20px 22px;
  border-radius: 14px;
  border: 1.5px solid var(--border);
  background: var(--white);
}

.calc-result-loss {
  border-color: #fecaca;
  background: #fff7f7;
}

.calc-result-gain {
  border-color: #bbf7d0;
  background: #f0fdf4;
}

.calc-result-roi {
  border-color: #bfdbfe;
  background: #eff6ff;
}

.calc-result-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--grey);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.calc-result-value {
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -1px;
  color: var(--navy);
}

.calc-result-loss .calc-result-value  { color: #dc2626; }
.calc-result-gain .calc-result-value  { color: #16a34a; }

.calc-result-sub {
  font-size: 13px;
  color: var(--grey);
}

.calc-bar-wrap {
  padding: 16px 0 4px;
}

.calc-bar-label-row {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--grey);
  margin-bottom: 8px;
}

.calc-bar {
  height: 10px;
  border-radius: 999px;
  background: #f1f5f9;
  overflow: hidden;
  display: flex;
}

.calc-bar-fill-loss {
  height: 100%;
  background: #fca5a5;
  transition: width 0.3s ease;
}

.calc-bar-fill-gain {
  height: 100%;
  background: #4ade80;
  transition: width 0.3s ease;
}

.pricing-note {
  text-align: center;
  color: var(--grey);
  font-size: 14px;
  margin-top: 32px;
}

/* BOOKING FORM */
.booking-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.booking-form label {
  display: flex;
  flex-direction: column;
  gap: 7px;
  font-weight: 600;
  font-size: 15px;
}

.booking-form input,
.booking-form textarea {
  padding: 12px 14px;
  border: 1.5px solid var(--border);
  border-radius: 10px;
  font: inherit;
  font-size: 15px;
  transition: border-color 0.2s;
  outline: none;
}

.booking-form input:focus,
.booking-form textarea:focus {
  border-color: var(--blue);
}

.form-success {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  padding: 28px;
  background: #f0fdf4;
  border: 1.5px solid #bbf7d0;
  color: #166534;
  border-radius: 14px;
  font-weight: 600;
  text-align: center;
}

.calendar-prompt {
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--navy);
}

.btn-calendar {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  background: var(--white);
  color: var(--navy);
  border: 1.5px solid var(--border);
  border-radius: 10px;
  font-weight: 600;
  font-size: 15px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.btn-calendar:hover {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px #dbeafe;
}

/* FOOTER */
.footer {
  padding: 40px;
  border-top: 1px solid var(--border);
  background: var(--white);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-logo {
  font-size: 18px;
  font-weight: 800;
  color: var(--blue);
}

.footer-links {
  display: flex;
  gap: 20px;
}

.footer-links a {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--grey);
  font-size: 15px;
  transition: color 0.2s;
}

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

.footer-copy {
  color: var(--grey);
  font-size: 14px;
}

/* RESPONSIVE */
@media (max-width: 900px) {
  .features {
    grid-template-columns: repeat(2, 1fr);
  }

  .calculator {
    grid-template-columns: 1fr;
  }

  .steps {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .nav {
    padding: 14px 20px;
  }

  .nav-links {
    gap: 16px;
  }

  .nav-links a:not(.btn-nav):not(.nav-instagram) {
    display: none;
  }

  .hero {
    padding: 60px 20px;
  }

  .section {
    padding: 60px 20px;
  }

  .features {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }

  .proof-bar {
    padding: 14px 20px;
  }
}