:root {
  /* Colors */
  --color-primary: #0f2a5f;
  --color-accent: #10b981;
  --color-accent-hover: #059669;
  --color-bg: #ffffff;
  --color-bg-secondary: #f8fafc;
  --color-text: #1f2937;
  --color-text-light: #6b7280;
  --color-white: #ffffff;

  /* Typography */
  --font-family: 'Inter', system-ui, Avenir, Helvetica, Arial, sans-serif;

  /* Spacing & Layout */
  --container-width: 1200px;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 2rem;
  --spacing-xl: 4rem;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
}

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

body {
  font-family: var(--font-family);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  color: var(--color-primary);
  font-weight: 700;
  line-height: 1.2;
}

a {
  color: var(--color-primary);
  text-decoration: none;
}

button {
  font-family: inherit;
  cursor: pointer;
}

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Utilities */
.text-center {
  text-align: center;
}

.text-primary {
  color: var(--color-primary);
}

.text-accent {
  color: var(--color-accent);
}

.bg-secondary {
  background-color: var(--color-bg-secondary);
}

.flex {
  display: flex;
}

.justify-between {
  justify-content: space-between;
}

.items-center {
  align-items: center;
}

.gap-2 {
  gap: 0.5rem;
}

.gap-4 {
  gap: 1rem;
}

/* Button Styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: var(--radius-md);
  font-weight: 600;
  transition: all 0.2s ease;
  font-family: inherit;
  cursor: pointer;
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-white);
  box-shadow: 0 4px 6px -1px rgba(15, 42, 95, 0.2);
}

.btn-primary:hover {
  background-color: #0a1e45;
  box-shadow: 0 6px 8px -1px rgba(15, 42, 95, 0.3);
}

.btn-accent {
  background-color: var(--color-accent);
  color: var(--color-white);
  box-shadow: 0 4px 6px -1px rgba(16, 185, 129, 0.2);
}

.btn-accent:hover {
  background-color: var(--color-accent-hover);
}

.btn-outline {
  background-color: transparent;
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
}

.btn-outline:hover {
  background-color: var(--color-bg-secondary);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.btn-md {
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.125rem;
}

.btn-full {
  width: 100%;
}

/* Slider Component Styles */
.slider-container {
  margin-bottom: var(--spacing-lg);
}

.slider-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-sm);
}

.slider-label {
  font-weight: 600;
  color: var(--color-text);
}

.slider-input-wrapper {
  display: flex;
  align-items: center;
  background: var(--color-white);
  border: 1px solid #e5e7eb;
  border-radius: var(--radius-sm);
  padding: 0.25rem 0.5rem;
  width: 140px;
}

.slider-input-wrapper:focus-within {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.1);
}

.slider-number-input {
  border: none;
  outline: none;
  width: 100%;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-primary);
  text-align: right;
  -moz-appearance: textfield;
}

.slider-number-input::-webkit-outer-spin-button,
.slider-number-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.slider-unit {
  margin-left: 4px;
  font-size: 0.875rem;
  color: var(--color-text-light);
  white-space: nowrap;
}

.slider-track-wrapper {
  position: relative;
  height: 24px;
  display: flex;
  align-items: center;
}

.slider-range {
  -webkit-appearance: none;
  width: 100%;
  height: 8px;
  background: #e5e7eb;
  outline: none;
  border-radius: 4px;
  background-image: linear-gradient(var(--color-accent), var(--color-accent));
  background-repeat: no-repeat;
  /* background-size is set inline in React */
  cursor: pointer;
}

.slider-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  height: 24px;
  width: 24px;
  border-radius: 50%;
  background: var(--color-white);
  border: 2px solid var(--color-accent);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  cursor: pointer;
  transition: transform 0.1s;
  margin-top: 0;
}

.slider-range::-webkit-slider-thumb:hover {
  transform: scale(1.1);
}

.slider-range::-moz-range-thumb {
  height: 24px;
  width: 24px;
  border-radius: 50%;
  background: var(--color-white);
  border: 2px solid var(--color-accent);
  cursor: pointer;
}

.slider-minmax {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--color-text-light);
  margin-top: 4px;
}


/* --- SECTION STYLES --- */

.section {
  padding: var(--spacing-xl) 0;
}

.section-header {
  margin-bottom: var(--spacing-lg);
}

.section-header h2 {
  font-size: 2rem;
  margin-bottom: var(--spacing-sm);
}

/* Navbar */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.25rem var(--spacing-md);
  /* Reduced padding to keep header tight */
  position: relative;
  z-index: 100;
  height: 110px;
  /* Fixed height to prevent jumping */
}

.logo-img {
  height: 100px;
  /* Bigger logo */
  width: auto;
  max-width: 100%;
}

.nav-links a {
  margin-left: var(--spacing-lg);
  font-weight: 500;
  color: var(--color-primary);
  text-decoration: none;
}

.nav-links a:hover {
  text-decoration: underline;
}

/* Hero */
.hero-section {
  padding-bottom: var(--spacing-xl);
  background: linear-gradient(to bottom, #f0f9ff, #ffffff);
  position: relative;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
  margin-top: var(--spacing-lg);
}

.hero-text h1 {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
}

.hero-sub {
  font-size: 1.125rem;
  color: var(--color-text-light);
  margin-bottom: var(--spacing-lg);
}

.hero-lead-form {
  background: var(--color-white);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  max-width: 400px;
}

.input-field {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid #e5e7eb;
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-md);
  font-size: 1rem;
}

.input-field:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.hero-trust {
  text-align: center;
  font-size: 0.875rem;
  color: var(--color-text-light);
  margin-top: var(--spacing-sm);
}

.hero-image {
  display: flex;
  justify-content: center;
}

.hero-img-rounded {
  width: 100%;
  max-width: 600px;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  object-fit: cover;
  background-color: #eee;
  /* Fallback color */
}

/* Calculator Section */
.calculator-section {
  padding: var(--spacing-xl) 0;
  background-color: var(--color-primary);
  color: var(--color-white);
  scroll-margin-top: 2rem;
  /* Fix scroll overlap */
}

.calculator-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  color: var(--color-text);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.calculator-inputs h3 {
  margin-bottom: var(--spacing-lg);
  color: var(--color-primary);
}

.calculator-results {
  background: var(--color-bg-secondary);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.result-main {
  margin: var(--spacing-lg) 0;
}

.result-label {
  display: block;
  font-size: 0.875rem;
  color: var(--color-text-light);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

.result-value.big {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-accent);
}

.result-row {
  display: flex;
  justify-content: space-between;
  padding: 0.5rem 0;
  border-bottom: 1px solid #e5e7eb;
}

.result-row:last-child {
  border-bottom: none;
  margin-bottom: var(--spacing-md);
}

.disclaimer {
  font-size: 0.65rem;
  color: var(--color-text-light);
  margin-top: var(--spacing-md);
  line-height: 1.3;
}

/* Goals Grid */
.goals-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--spacing-lg);
}

.goal-card {
  background: var(--color-white);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
  transition: transform 0.2s;
  border: 1px solid transparent;
}

.goal-card:hover {
  transform: translateY(-5px);
  border-color: #e5e7eb;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.goal-icon {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
}

/* Responsive */
@media (max-width: 768px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-lead-form {
    margin: 0 auto;
  }

  .calculator-card {
    grid-template-columns: 1fr;
    padding: var(--spacing-md);
  }

  .hero-text h1 {
    font-size: 2rem;
  }
}

/* How It Works */
.steps-container {
  display: flex;
  justify-content: space-between;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
}

.step-card {
  flex: 1;
  min-width: 280px;
  text-align: center;
  padding: var(--spacing-md);
}

.step-number {
  background: var(--color-bg-secondary);
  color: var(--color-primary);
  font-size: 1.5rem;
  font-weight: 800;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-md);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.step-card h3 {
  margin-bottom: var(--spacing-sm);
}

/* USP Section */
.usp-container {
  max-width: 800px;
  /* Narrower width for reading */
}

.usp-list {
  list-style: none;
  margin: var(--spacing-lg) 0;
}

.usp-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: var(--spacing-md);
  font-size: 1.1rem;
}

.check-icon {
  margin-right: var(--spacing-md);
  flex-shrink: 0;
}

.usp-cta {
  margin-top: var(--spacing-xl);
  text-align: center;
}

/* Footer */
.footer {
  background: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.footer-brand .footer-logo {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.footer-links a {
  color: #cad1d9;
  margin-left: var(--spacing-lg);
  font-size: 0.9rem;
}

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

.footer-copy {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-md);
  text-align: center;
  color: #9ca3af;
  font-size: 0.8rem;
}