/* CSS Custom Properties */
:root {
  /* Colors */
  --primary: #0ea5e9;
  --secondary: #22c55e;
  --bg: #0b1220;
  --card: #111a2b;
  --text: #e6eef9;
  --muted: #94a3b8;
  --warning: #f59e0b;
  --danger: #ef4444;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--primary), #3b82f6);
  --gradient-secondary: linear-gradient(135deg, var(--secondary), #16a34a);
  --gradient-text: linear-gradient(135deg, var(--primary), var(--secondary));

  /* Spacing */
  --spacing-xs: 0.5rem; /* 8px */
  --spacing-sm: 1rem; /* 16px */
  --spacing-md: 1.5rem; /* 24px */
  --spacing-lg: 2rem; /* 32px */
  --spacing-xl: 3rem; /* 48px */
  --spacing-2xl: 4rem; /* 64px */

  /* Typography */
  --font-primary: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: "IBM Plex Sans", Monaco, "Cascadia Code", "Segoe UI Mono", monospace;

  /* Font Sizes */
  --text-xs: 0.75rem; /* 12px */
  --text-sm: 0.875rem; /* 14px */
  --text-base: 1rem; /* 16px */
  --text-lg: 1.125rem; /* 18px */
  --text-xl: 1.25rem; /* 20px */
  --text-2xl: 1.5rem; /* 24px */
  --text-3xl: 1.875rem; /* 30px */
  --text-4xl: 2.25rem; /* 36px */
  --text-5xl: 3rem; /* 48px */

  /* Line Heights */
  --leading-none: 1;
  --leading-tight: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;

  /* Border Radius */
  --radius-sm: 0.375rem; /* 6px */
  --radius-md: 0.5rem; /* 8px */
  --radius-lg: 0.75rem; /* 12px */
  --radius-xl: 1rem; /* 16px */
  --radius-2xl: 1.5rem; /* 24px */

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

  /* Glass effect */
  --glass-bg: rgba(17, 26, 43, 0.7);
  --glass-border: rgba(230, 238, 249, 0.1);
  --glass-blur: blur(12px);

  /* Animations */
  --transition-fast: 120ms ease;
  --transition-normal: 150ms ease;
  --transition-slow: 180ms ease;

  /* Z-indexes */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal: 1040;
  --z-popover: 1050;
  --z-tooltip: 1060;
  --z-toast: 1070;
}

/* Reset & Base Styles */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--text);
  background-color: var(--bg);
  overflow-x: hidden;
}

/* Focus management */
*:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

*:focus:not(:focus-visible) {
  outline: none;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 600;
  line-height: var(--leading-tight);
  color: var(--text);
}

h1 {
  font-size: var(--text-5xl);
}
h2 {
  font-size: var(--text-4xl);
}
h3 {
  font-size: var(--text-3xl);
}
h4 {
  font-size: var(--text-2xl);
}
h5 {
  font-size: var(--text-xl);
}
h6 {
  font-size: var(--text-lg);
}

p {
  margin-bottom: var(--spacing-sm);
  color: var(--muted);
  line-height: var(--leading-relaxed);
}

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

a:hover {
  color: var(--secondary);
}

.text-gradient {
  background: var(--gradient-text);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-link {
  color: var(--primary);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-fast);
}

.text-link:hover {
  border-bottom-color: var(--primary);
}

/* Utilities */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

.section {
  padding: var(--spacing-2xl) 0;
}

.section__header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.section__title {
  margin-bottom: var(--spacing-sm);
}

.section__subtitle {
  font-size: var(--text-lg);
  max-width: 600px;
  margin: 0 auto;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: 0.75rem 1.5rem;
  font-family: var(--font-primary);
  font-size: var(--text-base);
  font-weight: 500;
  line-height: 1;
  border: 1px solid transparent;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
  white-space: nowrap;
}

.btn--primary {
  color: white;
  background: var(--gradient-primary);
  border-color: var(--primary);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: white;
}

.btn--secondary {
  color: var(--text);
  background: transparent;
  border-color: var(--muted);
}

.btn--secondary:hover {
  color: var(--text);
  background: var(--glass-bg);
  border-color: var(--text);
}

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

.btn--outline:hover {
  color: white;
  background: var(--primary);
}

.btn--lg {
  padding: 1rem 2rem;
  font-size: var(--text-lg);
}

.btn--full {
  width: 100%;
}

.btn--cta {
  background: var(--gradient-secondary);
  border-color: var(--secondary);
  font-weight: 600;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--glass-border);
  z-index: var(--z-fixed);
  transition: all var(--transition-normal);
}

.header.scrolled {
  background: var(--card);
  box-shadow: var(--shadow-lg);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--text);
}

.nav__logo {
  width: 32px;
  height: 32px;
}

.nav__menu {
  display: flex;
  align-items: center;
}

.nav__list {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  list-style: none;
}

.nav__link {
  color: var(--muted);
  font-weight: 500;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.nav__link:hover,
.nav__link.active {
  color: var(--text);
  background: var(--glass-bg);
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: var(--spacing-xs);
  background: transparent;
  border: none;
  cursor: pointer;
}

.nav__toggle span {
  width: 20px;
  height: 2px;
  background: var(--text);
  border-radius: 1px;
  transition: all var(--transition-normal);
}

/* Hero Section */
.hero {
  padding: calc(80px + var(--spacing-2xl)) 0 var(--spacing-2xl);
  background: radial-gradient(ellipse at center top, rgba(14, 165, 233, 0.1) 0%, transparent 70%);
}

.hero__content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: center;
}

.hero__title {
  font-size: clamp(var(--text-3xl), 5vw, var(--text-5xl));
  margin-bottom: var(--spacing-md);
  line-height: var(--leading-tight);
}

.hero__description {
  font-size: var(--text-lg);
  margin-bottom: var(--spacing-xl);
  max-width: 500px;
}

.hero__buttons {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xl);
}

.hero__stats {
  display: flex;
  gap: var(--spacing-lg);
}

.hero__stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.hero__stat-number {
  font-family: var(--font-mono);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--text);
}

.hero__stat-label {
  font-size: var(--text-sm);
  color: var(--muted);
}

.hero__visual {
  position: relative;
}

.hero__mockup {
  position: relative;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.hero__image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-2xl);
}

/* Features Section */
.features {
  background: linear-gradient(180deg, transparent 0%, rgba(17, 26, 43, 0.3) 100%);
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-xl);
}

.feature-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  transition: all var(--transition-normal);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(14, 165, 233, 0.3);
}

.feature-card__icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--spacing-md);
  padding: var(--spacing-sm);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
}

.feature-card__title {
  font-size: var(--text-xl);
  margin-bottom: var(--spacing-sm);
  color: var(--text);
}

.feature-card__description {
  line-height: var(--leading-relaxed);
}

/* Demo Dashboard */
.demo {
  background: var(--card);
}

.demo__container {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-xl);
}

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

.demo__tabs {
  display: flex;
  background: var(--card);
  border-radius: var(--radius-lg);
  padding: 4px;
  border: 1px solid var(--glass-border);
}

.demo__tab {
  padding: var(--spacing-xs) var(--spacing-md);
  background: transparent;
  border: none;
  color: var(--muted);
  font-size: var(--text-sm);
  font-weight: 500;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.demo__tab.active {
  background: var(--primary);
  color: white;
}

.demo__search {
  display: flex;
  gap: var(--spacing-sm);
}

.demo__search-input,
.demo__filter {
  padding: var(--spacing-xs) var(--spacing-sm);
  background: var(--card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--text);
  font-size: var(--text-sm);
}

.demo__search-input::placeholder {
  color: var(--muted);
}

.demo__overview {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.overview-card {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  background: var(--card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
}

.overview-card__icon {
  width: 40px;
  height: 40px;
  padding: var(--spacing-xs);
  background: var(--glass-bg);
  border-radius: var(--radius-md);
}

.overview-card__content {
  flex: 1;
}

.overview-card__label {
  display: block;
  font-size: var(--text-xs);
  color: var(--muted);
  margin-bottom: 4px;
}

.overview-card__value {
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--text);
}

.overview-card__progress {
  font-size: var(--text-xs);
  color: var(--secondary);
  margin-top: 4px;
}

.progress-bar {
  height: 4px;
  background: var(--glass-border);
  border-radius: 2px;
  overflow: hidden;
  margin: var(--spacing-xs) 0 4px;
}

.progress-bar__fill {
  height: 100%;
  background: var(--gradient-secondary);
  transition: width var(--transition-slow);
}

.demo__content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
}

.demo__chart {
  background: var(--card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
}

.demo__chart-title {
  font-size: var(--text-lg);
  margin-bottom: var(--spacing-sm);
  color: var(--text);
}

#expense-chart {
  width: 100%;
  height: auto;
}

.demo__transactions {
  background: var(--card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
}

.demo__transactions-title {
  font-size: var(--text-lg);
  margin-bottom: var(--spacing-sm);
  color: var(--text);
}

.transactions-table {
  font-size: var(--text-sm);
}

.transactions-header {
  display: grid;
  grid-template-columns: 1fr 2fr 1fr 1fr;
  gap: var(--spacing-sm);
  padding: var(--spacing-xs) 0;
  border-bottom: 1px solid var(--glass-border);
  font-weight: 600;
  color: var(--muted);
}

.transactions-body {
  max-height: 300px;
  overflow-y: auto;
}

.transaction-row {
  display: grid;
  grid-template-columns: 1fr 2fr 1fr 1fr;
  gap: var(--spacing-sm);
  padding: var(--spacing-xs) 0;
  border-bottom: 1px solid rgba(148, 163, 184, 0.1);
  transition: background-color var(--transition-fast);
}

.transaction-row:hover {
  background: var(--glass-bg);
}

.transaction-col {
  padding: var(--spacing-xs) 0;
}

.transaction-amount {
  font-family: var(--font-mono);
  font-weight: 600;
}

.transaction-amount.negative {
  color: var(--danger);
}

.transaction-amount.positive {
  color: var(--secondary);
}

.transaction-category {
  background: var(--glass-bg);
  color: var(--primary);
  padding: 2px var(--spacing-xs);
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
}

/* Calculators Section */
.calculators__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
}

.calculator-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  transition: all var(--transition-normal);
}

.calculator-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.calculator-card__title {
  font-size: var(--text-xl);
  margin-bottom: var(--spacing-md);
  color: var(--text);
}

.calculator-card__content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.input-group label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text);
}

.calculator-input,
.calculator-select {
  padding: var(--spacing-sm);
  background: var(--card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--text);
  font-size: var(--text-base);
  transition: all var(--transition-fast);
}

.calculator-input:focus,
.calculator-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}

.calculator-result {
  margin-top: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
}

.result-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-xs) 0;
}

.result-item:not(:last-child) {
  border-bottom: 1px solid var(--glass-border);
}

.result-label {
  font-size: var(--text-sm);
  color: var(--muted);
}

.result-value {
  font-family: var(--font-mono);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--text);
}

/* Pricing Section */
.pricing {
  background: linear-gradient(180deg, transparent 0%, rgba(17, 26, 43, 0.5) 100%);
}

.pricing__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
}

.pricing-card {
  position: relative;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-xl);
  transition: all var(--transition-normal);
}

.pricing-card--featured {
  border-color: var(--primary);
  box-shadow: 0 0 20px rgba(14, 165, 233, 0.2);
  transform: scale(1.05);
}

.pricing-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.pricing-card--featured:hover {
  transform: scale(1.05) translateY(-8px);
}

.pricing-card__badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-primary);
  color: white;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
  font-weight: 600;
}

.pricing-card__header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.pricing-card__title {
  font-size: var(--text-2xl);
  margin-bottom: var(--spacing-sm);
  color: var(--text);
}

.pricing-card__price {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 4px;
  margin-bottom: var(--spacing-sm);
}

.pricing-card__currency {
  font-size: var(--text-lg);
  color: var(--muted);
}

.pricing-card__amount {
  font-family: var(--font-mono);
  font-size: var(--text-4xl);
  font-weight: 700;
  color: var(--text);
}

.pricing-card__period {
  font-size: var(--text-base);
  color: var(--muted);
}

.pricing-card__description {
  color: var(--muted);
}

.pricing-card__features {
  margin-bottom: var(--spacing-xl);
}

.feature-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-xs) 0;
}

.feature-item__icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* Education Section */
.education__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-xl);
}

.education-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all var(--transition-normal);
}

.education-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.education-card__image {
  aspect-ratio: 16/10;
  overflow: hidden;
}

.education-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.education-card:hover .education-card__image img {
  transform: scale(1.05);
}

.education-card__content {
  padding: var(--spacing-md);
}

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

.education-card__date {
  font-size: var(--text-xs);
  color: var(--muted);
}

.education-card__tag {
  background: var(--primary);
  color: white;
  padding: 2px var(--spacing-xs);
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  font-weight: 500;
}

.education-card__title {
  font-size: var(--text-lg);
  margin-bottom: var(--spacing-sm);
  color: var(--text);
  line-height: var(--leading-snug);
}

.education-card__description {
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--spacing-sm);
}

.education-card__link {
  color: var(--primary);
  font-weight: 500;
  font-size: var(--text-sm);
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  transition: color var(--transition-fast);
}

.education-card__link:hover {
  color: var(--secondary);
}

.education-card__link::after {
  content: "→";
  transition: transform var(--transition-fast);
}

.education-card__link:hover::after {
  transform: translateX(4px);
}

/* Testimonials Section */
.testimonials {
  background: var(--card);
}

.testimonials__carousel {
  position: relative;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.testimonial-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  opacity: 0.6;
  transform: scale(0.95);
  transition: all var(--transition-slow);
}

.testimonial-card.active {
  opacity: 1;
  transform: scale(1);
  border-color: var(--primary);
  box-shadow: 0 0 20px rgba(14, 165, 233, 0.1);
}

.testimonial-card__content {
  margin-bottom: var(--spacing-md);
}

.testimonial-card__rating {
  display: flex;
  gap: 4px;
  margin-bottom: var(--spacing-sm);
}

.star {
  width: 16px;
  height: 16px;
  color: var(--warning);
}

.testimonial-card__quote {
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  color: var(--text);
  font-style: italic;
  margin: 0;
}

.testimonial-card__author {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.testimonial-card__avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
}

.testimonial-card__name {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}

.testimonial-card__title {
  font-size: var(--text-sm);
  color: var(--muted);
}

.testimonials__controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
}

.testimonial-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 50%;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.testimonial-btn:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}

.testimonial-btn svg {
  width: 16px;
  height: 16px;
}

.testimonial-dots {
  display: flex;
  gap: var(--spacing-xs);
}

.testimonial-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.testimonial-dot.active {
  background: var(--primary);
  transform: scale(1.25);
}

/* FAQ Section */
.faq__accordion {
  max-width: 800px;
  margin: 0 auto;
}

.faq__item {
  border-bottom: 1px solid var(--glass-border);
}

.faq__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--spacing-md) 0;
  background: transparent;
  border: none;
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--text);
  text-align: left;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.faq__question:hover {
  color: var(--primary);
}

.faq__question[aria-expanded="true"] {
  color: var(--primary);
}

.faq__question[aria-expanded="true"] .faq__icon {
  transform: rotate(180deg);
}

.faq__icon {
  width: 20px;
  height: 20px;
  transition: transform var(--transition-normal);
}

.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow) ease-out;
}

.faq__answer.active {
  max-height: 200px;
}

.faq__answer-content {
  padding-bottom: var(--spacing-md);
  color: var(--muted);
  line-height: var(--leading-relaxed);
}

/* Contact Section */
.contact {
  background: radial-gradient(ellipse at center bottom, rgba(14, 165, 233, 0.1) 0%, transparent 70%);
}

.contact__content {
  max-width: 600px;
  margin: 0 auto;
}

.contact__form {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-xl);
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text);
  margin-bottom: var(--spacing-xs);
}

.form-input,
.form-select {
  width: 100%;
  padding: var(--spacing-sm);
  background: var(--card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--text);
  font-size: var(--text-base);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}

.form-input.error,
.form-select.error {
  border-color: var(--danger);
}

.form-error {
  display: block;
  font-size: var(--text-xs);
  color: var(--danger);
  margin-top: var(--spacing-xs);
}

.contact__disclaimer {
  font-size: var(--text-xs);
  color: var(--muted);
  text-align: center;
  margin-top: var(--spacing-sm);
}

/* Toast Notification */
.toast {
  position: fixed;
  top: 100px;
  right: var(--spacing-sm);
  background: var(--card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-sm);
  box-shadow: var(--shadow-xl);
  transform: translateX(100%);
  transition: transform var(--transition-slow);
  z-index: var(--z-toast);
  max-width: 400px;
}

.toast.show {
  transform: translateX(0);
}

.toast__content {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--text);
}

.toast__icon {
  width: 20px;
  height: 20px;
  color: var(--secondary);
}

.toast__message {
  font-size: var(--text-sm);
}

.toast__close {
  background: transparent;
  border: none;
  color: var(--muted);
  cursor: pointer;
  padding: var(--spacing-xs);
  margin-left: auto;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast);
}

.toast__close:hover {
  color: var(--text);
}

.toast__close svg {
  width: 16px;
  height: 16px;
}

/* Footer */
.footer {
  background: var(--card);
  border-top: 1px solid var(--glass-border);
  padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer__content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-xl);
}

.footer__brand {
  max-width: 400px;
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--text);
  margin-bottom: var(--spacing-sm);
}

.footer__logo svg {
  width: 32px;
  height: 32px;
}

.footer__description {
  margin-bottom: var(--spacing-md);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
}

.footer__social {
  display: flex;
  gap: var(--spacing-sm);
}

.footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--muted);
  transition: all var(--transition-fast);
}

.footer__social-link:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
  transform: translateY(-2px);
}

.footer__social-link svg {
  width: 20px;
  height: 20px;
}

.footer__links {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-xl);
}

.footer__column-title {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--text);
  margin-bottom: var(--spacing-sm);
}

.footer__list {
  list-style: none;
}

.footer__list li {
  margin-bottom: var(--spacing-xs);
}

.footer__link {
  color: var(--muted);
  font-size: var(--text-sm);
  transition: color var(--transition-fast);
}

.footer__link:hover {
  color: var(--primary);
}

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--glass-border);
  gap: var(--spacing-sm);
}

.footer__payment {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.footer__payment-title {
  font-size: var(--text-xs);
  color: var(--muted);
}

.footer__payment-icons {
  display: flex;
  gap: var(--spacing-xs);
}

.footer__payment-icons svg {
  height: 20px;
  border-radius: 4px;
}

.footer__copyright {
  font-size: var(--text-xs);
  color: var(--muted);
}

/* Responsive Design */
@media (max-width: 1024px) {
  .hero__content,
  .demo__content {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }

  .hero__visual {
    order: -1;
  }

  .demo__controls {
    flex-direction: column;
    align-items: stretch;
  }
}

@media (max-width: 768px) {
  :root {
    --spacing-2xl: 3rem;
    --spacing-xl: 2rem;
  }

  .container {
    padding: 0 var(--spacing-md);
  }

  .nav__menu {
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    height: 0;
    background: var(--card);
    border-top: 1px solid var(--glass-border);
    overflow: hidden;
    transition: height var(--transition-normal);
  }

  .nav__menu.active {
    height: auto;
  }

  .nav__list {
    flex-direction: column;
    padding: var(--spacing-md);
    gap: var(--spacing-sm);
  }

  .nav__toggle {
    display: flex;
  }

  .nav__toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .nav__toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .nav__toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
  }

  .hero__buttons {
    flex-direction: column;
  }

  .hero__stats {
    flex-wrap: wrap;
    gap: var(--spacing-sm);
  }

  .demo__search {
    flex-direction: column;
  }

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

  .transactions-header,
  .transaction-row {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xs);
  }

  .transactions-header .transaction-col:nth-child(2),
  .transaction-row .transaction-col:nth-child(2) {
    grid-column: 1 / -1;
    order: 2;
  }

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

  .pricing-card--featured {
    transform: none;
  }

  .pricing-card--featured:hover {
    transform: translateY(-8px);
  }

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

  .footer__links {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .toast {
    right: var(--spacing-sm);
    left: var(--spacing-sm);
    max-width: none;
  }
}

@media (max-width: 480px) {
  .hero__title {
    font-size: var(--text-3xl);
  }

  .section__title {
    font-size: var(--text-3xl);
  }

  .pricing-card {
    padding: var(--spacing-md);
  }

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

/* Animation Classes */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

[data-aos] {
  opacity: 0;
  transition: all 0.6s ease;
}

[data-aos].aos-animate {
  opacity: 1;
}

[data-aos="fade-up"].aos-animate {
  animation: fadeInUp 0.6s ease forwards;
}

[data-aos="fade-left"].aos-animate {
  animation: fadeInLeft 0.6s ease forwards;
}

[data-aos="fade-right"].aos-animate {
  animation: fadeInRight 0.6s ease forwards;
}

/* Print Styles */
@media print {
  .header,
  .nav__toggle,
  .demo,
  .calculators,
  .testimonials__controls,
  .contact,
  .toast {
    display: none !important;
  }

  body {
    background: white !important;
    color: black !important;
  }

  .section {
    page-break-inside: avoid;
  }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
  :root {
    --bg: #000000;
    --text: #ffffff;
    --muted: #cccccc;
    --glass-border: #666666;
  }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }
}