/* =========================================
   EQUITY RISK SCIENCES - Main Stylesheet
   America's Independent Stock Risk Rating Agency
   ========================================= */

/* CSS Variables */
:root {
  /* Primary Colors */
  --navy-900: #0D1B2A;
  --navy-800: #1A365D;
  --navy-700: #234876;
  --navy-600: #2C5A8F;
  
  /* Accent Colors */
  --teal-600: #0D9488;
  --teal-500: #14B8A6;
  --teal-400: #2DD4BF;
  
  /* Teal Extended */
  --teal-800: #115E59;
  --teal-700: #0F766E;
  --teal-200: #99F6E4;
  --teal-100: #CCFBF1;
  --teal-50: #F0FDFA;
  
  /* Gold Accent */
  --gold-700: #B45309;
  --gold-600: #D97706;
  --gold-500: #D4AF37;
  --gold-400: #E5C158;
  --gold-200: #FDE68A;
  --gold-100: #FEF3C7;
  --gold-50: #FFFBEB;
  
  /* Navy Extended */
  --navy-100: #E0E7FF;
  --navy-50: #EEF2FF;
  
  /* Green Extended */
  --green-700: #047857;
  --green-200: #A7F3D0;
  --green-100: #D1FAE5;
  --green-50: #ECFDF5;
  
  /* Red Extended */
  --red-700: #B91C1C;
  --red-200: #FECACA;
  --red-100: #FEE2E2;
  --red-50: #FEF2F2;
  
  /* Neutrals */
  --slate-900: #0F172A;
  --slate-800: #1E293B;
  --slate-700: #334155;
  --slate-600: #475569;
  --slate-500: #64748B;
  --slate-400: #94A3B8;
  --slate-300: #CBD5E1;
  --slate-200: #E2E8F0;
  --slate-100: #F1F5F9;
  --slate-50: #F8FAFC;
  
  /* Status Colors */
  --green-600: #059669;
  --green-500: #10B981;
  --red-600: #DC2626;
  --red-500: #EF4444;
  
  /* Typography */
  --font-display: 'Playfair Display', Georgia, serif;
  --font-heading: 'Source Sans Pro', -apple-system, sans-serif;
  --font-body: 'Source Sans Pro', -apple-system, sans-serif;
  --font-mono: 'IBM Plex Mono', 'Courier New', monospace;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

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

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

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--slate-700);
  background-color: var(--slate-50);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  color: var(--navy-800);
}

.display-title {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

@media (min-width: 768px) {
  h1 { font-size: 3.5rem; }
  h2 { font-size: 2.5rem; }
  h3 { font-size: 1.75rem; }
}

p {
  margin-bottom: var(--space-md);
}

.text-lead {
  font-size: 1.25rem;
  line-height: 1.7;
  color: var(--slate-600);
}

.text-small {
  font-size: 0.875rem;
}

.text-mono {
  font-family: var(--font-mono);
}

/* Layout */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.container-narrow {
  max-width: 800px;
}

.container-wide {
  max-width: 1400px;
}

.section {
  padding: var(--space-4xl) 0;
}

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

/* Grid */
.grid {
  display: grid;
  gap: var(--space-xl);
}

.grid-2 { grid-template-columns: repeat(1, 1fr); }
.grid-3 { grid-template-columns: repeat(1, 1fr); }
.grid-4 { grid-template-columns: repeat(1, 1fr); }

@media (min-width: 768px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

/* Flex utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }

/* Text alignment */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* =========================================
   HEADER & NAVIGATION
   ========================================= */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--slate-200);
  transition: all var(--transition-base);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
}

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

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

.logo-text {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--navy-800);
  letter-spacing: -0.02em;
}

.logo-tagline {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--slate-500);
  display: none;
}

@media (min-width: 1024px) {
  .logo-tagline {
    display: block;
  }
}

.nav {
  display: none;
}

@media (min-width: 1024px) {
  .nav {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
  }
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--slate-600);
  transition: color var(--transition-fast);
}

.nav-link:hover {
  color: var(--navy-800);
}

.nav-cta {
  display: none;
}

@media (min-width: 1024px) {
  .nav-cta {
    display: flex;
    align-items: center;
    gap: var(--space-md);
  }
}

/* Mobile menu */
.mobile-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 10px;
  background: none;
  border: none;
  cursor: pointer;
}

@media (min-width: 1024px) {
  .mobile-toggle {
    display: none;
  }
}

.mobile-toggle span {
  width: 24px;
  height: 2px;
  background: var(--navy-800);
  transition: all var(--transition-fast);
}

.mobile-menu {
  position: fixed;
  top: 80px;
  left: 0;
  right: 0;
  bottom: 0;
  background: white;
  padding: var(--space-xl);
  display: none;
  flex-direction: column;
  gap: var(--space-lg);
}

.mobile-menu.active {
  display: flex;
}

.mobile-menu a {
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--slate-700);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--slate-200);
}

/* =========================================
   BUTTONS
   ========================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.75rem 1.5rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: 6px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn-primary {
  background: var(--navy-800);
  color: white;
  border-color: var(--navy-800);
}

.btn-primary:hover {
  background: var(--navy-700);
  border-color: var(--navy-700);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: transparent;
  color: var(--navy-800);
  border-color: var(--navy-800);
}

.btn-secondary:hover {
  background: var(--navy-800);
  color: white;
}

.btn-teal {
  background: var(--teal-600);
  color: white;
  border-color: var(--teal-600);
}

.btn-teal:hover {
  background: var(--teal-500);
  border-color: var(--teal-500);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-ghost {
  background: transparent;
  color: var(--slate-600);
  border-color: transparent;
}

.btn-ghost:hover {
  color: var(--navy-800);
  background: var(--slate-100);
}

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

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

.btn-white {
  background: white;
  color: var(--navy-800);
  border-color: white;
}

.btn-white:hover {
  background: var(--slate-100);
  border-color: var(--slate-100);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-outline-white {
  background: transparent;
  color: white;
  border-color: white;
}

.btn-outline-white:hover {
  background: white;
  color: var(--navy-800);
}

/* =========================================
   HERO SECTION
   ========================================= */
.hero {
  position: relative;
  padding: 140px 0 var(--space-4xl);
  background: linear-gradient(135deg, var(--navy-900) 0%, var(--navy-800) 50%, var(--navy-700) 100%);
  color: white;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.5;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.5rem 1rem;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 100px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--teal-400);
  margin-bottom: var(--space-xl);
  backdrop-filter: blur(10px);
}

.hero-title {
  font-family: var(--font-display);
  font-size: 2.75rem;
  font-weight: 700;
  line-height: 1.15;
  color: white;
  margin-bottom: var(--space-lg);
}

@media (min-width: 768px) {
  .hero-title {
    font-size: 3.5rem;
  }
}

@media (min-width: 1024px) {
  .hero-title {
    font-size: 4rem;
  }
}

.hero-title .highlight {
  color: var(--teal-400);
}

.hero-subtitle {
  font-size: 1.25rem;
  line-height: 1.7;
  color: var(--slate-300);
  margin-bottom: var(--space-2xl);
  max-width: 600px;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-bottom: var(--space-3xl);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
  padding-top: var(--space-2xl);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

@media (min-width: 768px) {
  .hero-stats {
    grid-template-columns: repeat(4, 1fr);
  }
}

.hero-stat {
  text-align: left;
}

.hero-stat-number {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  color: var(--gold-500);
  line-height: 1;
  margin-bottom: var(--space-xs);
}

.hero-stat-label {
  font-size: 0.875rem;
  color: var(--slate-400);
}

/* =========================================
   PROBLEM SECTION
   ========================================= */
.problem-section {
  background: white;
  position: relative;
}

.problem-grid {
  display: grid;
  gap: var(--space-3xl);
}

@media (min-width: 1024px) {
  .problem-grid {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
}

.problem-content h2 {
  margin-bottom: var(--space-lg);
}

.problem-content p {
  color: var(--slate-600);
  margin-bottom: var(--space-lg);
}

.problem-list {
  list-style: none;
  margin-top: var(--space-xl);
}

.problem-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
  padding: var(--space-md);
  background: var(--slate-50);
  border-radius: 8px;
  border-left: 3px solid var(--red-500);
}

.problem-list li span {
  color: var(--slate-700);
}

.problem-visual {
  background: var(--slate-100);
  border-radius: 12px;
  padding: var(--space-2xl);
}

.loss-chart {
  background: white;
  border-radius: 8px;
  padding: var(--space-xl);
  box-shadow: var(--shadow-md);
}

.loss-chart h4 {
  font-size: 1rem;
  color: var(--slate-600);
  margin-bottom: var(--space-lg);
  text-align: center;
}

.loss-bars {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.loss-bar {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.loss-bar-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--slate-600);
  width: 80px;
  flex-shrink: 0;
}

.loss-bar-track {
  flex: 1;
  height: 32px;
  background: var(--slate-100);
  border-radius: 4px;
  overflow: hidden;
}

.loss-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--red-500), var(--red-600));
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: var(--space-md);
  color: white;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 600;
}

/* =========================================
   SOLUTION SECTION
   ========================================= */
.solution-section {
  background: var(--slate-50);
}

.solution-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-3xl);
}

.solution-header h2 {
  margin-bottom: var(--space-md);
}

.solution-header p {
  color: var(--slate-600);
  font-size: 1.125rem;
}

.solution-cards {
  display: grid;
  gap: var(--space-xl);
}

@media (min-width: 768px) {
  .solution-cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .solution-cards {
    grid-template-columns: repeat(3, 1fr);
  }
}

.solution-card {
  background: white;
  border-radius: 12px;
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--slate-200);
  transition: all var(--transition-base);
}

.solution-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--teal-500);
}

.solution-card-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--teal-500), var(--teal-600));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-lg);
  color: white;
  font-size: 1.5rem;
}

.solution-card h3 {
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
}

.solution-card p {
  color: var(--slate-600);
  font-size: 0.9375rem;
  margin-bottom: 0;
}

/* =========================================
   PROOF SECTION
   ========================================= */
.proof-section {
  background: white;
}

.proof-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-3xl);
}

.proof-header h2 {
  margin-bottom: var(--space-md);
}

.proof-metrics {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
  margin-bottom: var(--space-3xl);
}

@media (min-width: 768px) {
  .proof-metrics {
    grid-template-columns: repeat(4, 1fr);
  }
}

.proof-metric {
  text-align: center;
  padding: var(--space-xl);
  background: var(--slate-50);
  border-radius: 12px;
}

.proof-metric-value {
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--navy-800);
  line-height: 1;
  margin-bottom: var(--space-sm);
}

.proof-metric-value.green {
  color: var(--green-600);
}

.proof-metric-value.gold {
  color: var(--gold-500);
}

.proof-metric-label {
  font-size: 0.875rem;
  color: var(--slate-500);
  line-height: 1.4;
}

.proof-chart {
  background: var(--slate-50);
  border-radius: 12px;
  padding: var(--space-2xl);
}

.proof-chart h3 {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.rating-bars {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  max-width: 600px;
  margin: 0 auto;
}

.rating-bar {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.rating-bar-grade {
  width: 50px;
  font-family: var(--font-mono);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--navy-800);
}

.rating-bar-track {
  flex: 1;
  height: 40px;
  background: var(--slate-200);
  border-radius: 4px;
  overflow: hidden;
}

.rating-bar-fill {
  height: 100%;
  display: flex;
  align-items: center;
  padding-left: var(--space-md);
  color: white;
  font-family: var(--font-mono);
  font-weight: 600;
}

.rating-bar-fill.grade-a {
  background: linear-gradient(90deg, var(--green-500), var(--green-600));
}

.rating-bar-fill.grade-b {
  background: linear-gradient(90deg, #22C55E, #16A34A);
}

.rating-bar-fill.grade-c {
  background: linear-gradient(90deg, #84CC16, #65A30D);
}

.rating-bar-fill.grade-d {
  background: linear-gradient(90deg, #EAB308, #CA8A04);
}

.rating-bar-fill.grade-e {
  background: linear-gradient(90deg, #F97316, #EA580C);
}

.rating-bar-fill.grade-f {
  background: linear-gradient(90deg, var(--red-500), var(--red-600));
}

/* =========================================
   FOUNDER SECTION
   ========================================= */
.founder-section {
  background: var(--navy-900);
  color: white;
  position: relative;
  overflow: hidden;
}

.founder-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -25%;
  width: 80%;
  height: 200%;
  background: radial-gradient(ellipse, rgba(13, 148, 136, 0.1) 0%, transparent 70%);
}

.founder-grid {
  display: grid;
  gap: var(--space-3xl);
  position: relative;
  z-index: 1;
}

@media (min-width: 1024px) {
  .founder-grid {
    grid-template-columns: 1fr 1.2fr;
    align-items: center;
  }
}

.founder-image {
  text-align: center;
}

.founder-photo-placeholder {
  width: 280px;
  height: 280px;
  margin: 0 auto;
  background: linear-gradient(135deg, var(--navy-700), var(--navy-800));
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 4px solid var(--teal-500);
}

.founder-initials {
  font-family: var(--font-display);
  font-size: 4rem;
  font-weight: 700;
  color: var(--teal-400);
}

.founder-name-below {
  margin-top: var(--space-lg);
  font-size: 1.5rem;
  font-weight: 600;
}

.founder-title {
  color: var(--teal-400);
  font-size: 1rem;
}

.founder-content h2 {
  color: white;
  margin-bottom: var(--space-lg);
}

.founder-content > p {
  color: var(--slate-300);
  font-size: 1.125rem;
  margin-bottom: var(--space-xl);
}

.founder-credentials {
  display: grid;
  gap: var(--space-md);
}

.credential {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-md);
  background: rgba(255, 255, 255, 0.05);
  border-radius: 8px;
  border-left: 3px solid var(--gold-500);
}

.credential-year {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--gold-500);
  flex-shrink: 0;
}

.credential-text {
  color: var(--slate-300);
  font-size: 0.9375rem;
}

.credential-text strong {
  color: white;
}

/* =========================================
   DIFFERENTIATOR SECTION
   ========================================= */
.diff-section {
  background: white;
}

.diff-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-3xl);
}

.diff-table-wrapper {
  overflow-x: auto;
}

.diff-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 700px;
}

.diff-table th,
.diff-table td {
  padding: var(--space-lg);
  text-align: left;
  border-bottom: 1px solid var(--slate-200);
}

.diff-table th {
  background: var(--slate-50);
  font-weight: 600;
  color: var(--slate-600);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.diff-table th:first-child {
  border-radius: 8px 0 0 0;
}

.diff-table th:last-child {
  border-radius: 0 8px 0 0;
}

.diff-table td {
  font-size: 0.9375rem;
  color: var(--slate-700);
}

.diff-table td:first-child {
  font-weight: 600;
  color: var(--navy-800);
}

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

.diff-table .highlight-col {
  background: rgba(13, 148, 136, 0.05);
}

.diff-table th.highlight-col {
  background: var(--teal-600);
  color: white;
}

.check-yes {
  color: var(--green-600);
  font-weight: 600;
}

.check-no {
  color: var(--red-500);
}

/* =========================================
   CTA SECTION
   ========================================= */
.cta-section {
  background: linear-gradient(135deg, var(--teal-600) 0%, var(--teal-500) 100%);
  color: white;
  text-align: center;
}

.cta-content {
  max-width: 700px;
  margin: 0 auto;
}

.cta-content h2 {
  color: white;
  margin-bottom: var(--space-md);
}

.cta-content p {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--space-2xl);
}

.cta-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-md);
}

.btn-white {
  background: white;
  color: var(--teal-600);
  border-color: white;
}

.btn-white:hover {
  background: var(--slate-100);
  border-color: var(--slate-100);
}

.btn-outline-white {
  background: transparent;
  color: white;
  border-color: white;
}

.btn-outline-white:hover {
  background: white;
  color: var(--teal-600);
}

/* =========================================
   FOOTER
   ========================================= */
.footer {
  background: var(--navy-900);
  color: var(--slate-400);
  padding: var(--space-4xl) 0 var(--space-2xl);
}

.footer-grid {
  display: grid;
  gap: var(--space-2xl);
  margin-bottom: var(--space-3xl);
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

.footer-brand {
  max-width: 300px;
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: white;
  margin-bottom: var(--space-md);
}

.footer-brand p {
  font-size: 0.9375rem;
  line-height: 1.6;
  margin-bottom: var(--space-lg);
}

.footer-heading {
  font-size: 0.875rem;
  font-weight: 600;
  color: white;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-lg);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--space-sm);
}

.footer-links a {
  font-size: 0.9375rem;
  color: var(--slate-400);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--teal-400);
}

.footer-bottom {
  padding-top: var(--space-2xl);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-md);
}

.footer-bottom p {
  font-size: 0.875rem;
  margin: 0;
}

.footer-legal {
  display: flex;
  gap: var(--space-lg);
}

.footer-legal a {
  font-size: 0.875rem;
  color: var(--slate-500);
}

.footer-legal a:hover {
  color: var(--teal-400);
}

/* =========================================
   UTILITIES
   ========================================= */
.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }

.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-in-up {
  animation: fadeInUp 0.6s ease forwards;
}

.animation-delay-1 { animation-delay: 0.1s; }
.animation-delay-2 { animation-delay: 0.2s; }
.animation-delay-3 { animation-delay: 0.3s; }
.animation-delay-4 { animation-delay: 0.4s; }