/* ========================================
   UPCREDIT - MAIN STYLESHEET
   ======================================== */

/* CSS Variables - Upcredit Brand Colors */
:root {
  /* Primary Colors */
  --gold: #C8A24B;
  --gold-dark: #B08D3A;
  --gold-light: #D4AF37;
  
  /* Neutral Colors */
  --black: #181A1B;
  --gray-dark: #232323;
  --gray-medium: #666666;
  --gray-light: #888888;
  --gray-lighter: #CCCCCC;
  --white: #FFFFFF;
  
  /* Background Colors */
  --bg-primary: #FFFFFF;
  --bg-secondary: #F8F6F2;
  --bg-accent: #FFFBE6;
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-base: 16px;
  --line-height-base: 1.6;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-xxl: 4rem;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
  --shadow-gold: 0 4px 12px rgba(200, 162, 75, 0.2);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* ========================================
   RESET & BASE STYLES
   ======================================== */

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

html {
  font-size: var(--font-size-base);
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  line-height: var(--line-height-base);
  color: var(--black);
  background-color: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ========================================
   TYPOGRAPHY
   ======================================== */

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
  color: var(--black);
}

h1 {
  font-size: 2.5rem;
  font-weight: 700;
}

h2 {
  font-size: 2rem;
  font-weight: 600;
}

h3 {
  font-size: 1.5rem;
  font-weight: 600;
}

h4 {
  font-size: 1.25rem;
  font-weight: 500;
}

p {
  margin-bottom: var(--spacing-sm);
  color: var(--gray-medium);
}

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

a:hover {
  color: var(--gold-dark);
}

/* ========================================
   LAYOUT & CONTAINERS
   ======================================== */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-xxl);
}

.section-header h2 {
  color: var(--black);
  margin-bottom: var(--spacing-sm);
}

.section-header p {
  font-size: 1.125rem;
  color: var(--gray-medium);
  max-width: 600px;
  margin: 0 auto;
}

/* ========================================
   BUTTONS
   ======================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm) var(--spacing-lg);
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-primary);
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--gold);
  color: var(--white);
  box-shadow: var(--shadow-gold);
}

.btn-primary:hover {
  background-color: var(--gold-dark);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(200, 162, 75, 0.3);
}

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

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

.btn-large {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: 1.125rem;
}

.btn-full {
  width: 100%;
}

/* ========================================
   HEADER
   ======================================== */

.header {
  background-color: var(--bg-primary);
  border-bottom: 1px solid var(--gray-lighter);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  box-shadow: var(--shadow-sm);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) 0;
  min-height: 80px;
}

.logo img {
  height: 50px;
  width: auto;
  object-fit: contain;
}

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

.nav-link {
  color: var(--gray-medium);
  font-weight: 500;
  padding: var(--spacing-xs) 0;
  position: relative;
  transition: color var(--transition-fast);
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--gold);
  transition: width var(--transition-fast);
}

.nav-link:hover::after {
  width: 100%;
}

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

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
}

.mobile-menu-toggle span {
  width: 25px;
  height: 3px;
  background-color: var(--black);
  margin: 3px 0;
  transition: var(--transition-fast);
  border-radius: 2px;
}

/* ========================================
   DROPDOWN MENU
   ======================================== */

.nav-item.dropdown {
  position: relative;
}

.dropdown-toggle {
  display: flex;
  align-items: center;
  gap: 4px;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--bg-primary);
  border: 1px solid var(--gray-lighter);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  min-width: 320px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-normal);
  z-index: 1001;
  padding: var(--spacing-lg);
  margin-top: var(--spacing-xs);
}

.dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-section {
  margin-bottom: var(--spacing-md);
}

.dropdown-section:last-child {
  margin-bottom: 0;
}

.dropdown-section h4 {
  color: var(--gold);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--gray-lighter);
  padding-bottom: var(--spacing-xs);
}

.dropdown-section ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.dropdown-section ul li {
  margin-bottom: var(--spacing-xs);
}

.dropdown-section ul li:last-child {
  margin-bottom: 0;
}

.dropdown-section ul li a {
  color: var(--gray-medium);
  font-size: 0.875rem;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  display: block;
  margin-bottom: var(--spacing-xs);
}

.dropdown-section ul li a:hover {
  color: var(--gold);
  background-color: var(--bg-accent);
  transform: translateX(4px);
}

/* ========================================
   HERO SECTION
   ======================================== */

.hero {
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-accent) 100%);
  padding: var(--spacing-xxl) 0;
  position: relative;
  overflow: hidden;
  margin-top: 80px;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="%23C8A24B" opacity="0.03"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
  pointer-events: none;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xxl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-title {
  font-size: 3rem;
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: var(--spacing-md);
  color: var(--black);
}

.highlight {
  color: var(--gold);
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--gray-medium);
  margin-bottom: var(--spacing-lg);
  line-height: 1.6;
}

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

.feature {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-weight: 500;
  color: var(--gray-medium);
}

.feature-icon {
  color: var(--gold);
  font-weight: bold;
  font-size: 1.125rem;
}

/* ========================================
   SIMULATOR CARD
   ======================================== */

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

.simulator-card {
  background: var(--white);
  padding: var(--spacing-xl);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 400px;
}

.simulator-card h3 {
  text-align: center;
  margin-bottom: var(--spacing-lg);
  color: var(--black);
}

.simulator-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

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

.form-group label {
  font-weight: 500;
  color: var(--black);
  font-size: 0.875rem;
}

.form-group input,
.form-group select {
  padding: var(--spacing-sm);
  border: 2px solid var(--gray-lighter);
  border-radius: var(--radius-md);
  font-family: var(--font-primary);
  font-size: 1rem;
  transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--gold);
}

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

/* ========================================
   SERVICES SECTION
   ======================================== */

.services {
  padding: var(--spacing-xxl) 0;
  background-color: var(--bg-primary);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-lg);
}

.service-card {
  background: var(--white);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 2px solid transparent;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--gold) 0%, var(--gold-light) 100%);
  transform: scaleX(0);
  transition: transform var(--transition-normal);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--gold);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-card.primary {
  border-color: var(--gold);
  background: linear-gradient(135deg, var(--bg-accent) 0%, var(--white) 100%);
}

.service-card.primary::before {
  transform: scaleX(1);
}

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

.service-card h3 {
  margin-bottom: var(--spacing-sm);
  color: var(--black);
}

.service-card p {
  margin-bottom: var(--spacing-md);
  color: var(--gray-medium);
}

.service-link {
  color: var(--gold);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  transition: gap var(--transition-fast);
}

.service-link:hover {
  gap: var(--spacing-sm);
}

/* ========================================
   PROCESS SECTION
   ======================================== */

.process {
  padding: var(--spacing-xxl) 0;
  background-color: var(--bg-secondary);
}

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

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

.step-number {
  width: 60px;
  height: 60px;
  background: var(--gold);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 auto var(--spacing-md);
  box-shadow: var(--shadow-gold);
}

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

.step p {
  color: var(--gray-medium);
}

/* ========================================
   TRUST SECTION
   ======================================== */

.trust {
  padding: var(--spacing-xxl) 0;
  background-color: var(--bg-primary);
}

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

.trust-text h2 {
  margin-bottom: var(--spacing-lg);
  color: var(--black);
}

.trust-points {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.trust-point {
  display: flex;
  gap: var(--spacing-md);
  align-items: flex-start;
}

.trust-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.trust-point h4 {
  margin-bottom: var(--spacing-xs);
  color: var(--black);
}

.trust-point p {
  color: var(--gray-medium);
  margin-bottom: 0;
}

.trust-stats {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.stat {
  text-align: center;
  padding: var(--spacing-lg);
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  border: 2px solid var(--gold);
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--gold);
  margin-bottom: var(--spacing-xs);
}

.stat-label {
  font-weight: 500;
  color: var(--black);
}

/* ========================================
   CTA SECTION
   ======================================== */

.cta {
  padding: var(--spacing-xxl) 0;
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-dark) 100%);
  color: var(--white);
  text-align: center;
}

.cta h2 {
  color: var(--white);
  margin-bottom: var(--spacing-sm);
}

.cta p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.125rem;
  margin-bottom: var(--spacing-lg);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta .btn-primary {
  background-color: var(--white);
  color: var(--gold);
  box-shadow: var(--shadow-md);
}

.cta .btn-primary:hover {
  background-color: var(--bg-secondary);
  color: var(--gold-dark);
}

/* ========================================
   FOOTER
   ======================================== */

.footer {
  background-color: var(--gray-dark);
  color: var(--white);
  padding: var(--spacing-xxl) 0 var(--spacing-lg);
}

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

.footer-section h4 {
  color: var(--white);
  margin-bottom: var(--spacing-md);
}

.footer-section p {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--spacing-md);
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: var(--spacing-xs);
}

.footer-section ul li a {
  color: rgba(255, 255, 255, 0.8);
  transition: color var(--transition-fast);
}

.footer-section ul li a:hover {
  color: var(--gold);
}

.contact-info p {
  margin-bottom: var(--spacing-xs);
  color: rgba(255, 255, 255, 0.8);
}

.footer-logo img {
  height: 40px;
  width: auto;
  margin-bottom: var(--spacing-md);
  filter: brightness(0) invert(1);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  padding-top: var(--spacing-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.footer-bottom p {
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 0;
}

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

.footer-links a {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.875rem;
}

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

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */

@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }
  
  .trust-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 var(--spacing-sm);
  }
  
  .header-content {
    flex-wrap: wrap;
    gap: var(--spacing-sm);
  }
  
  .nav {
    order: 3;
    width: 100%;
    margin-top: var(--spacing-sm);
    display: none;
    background: var(--white);
    border-top: 1px solid var(--gray-lighter);
    padding: var(--spacing-md) 0;
    box-shadow: var(--shadow-sm);
  }
  
  .nav.active {
    display: block;
  }
  
  .nav-list {
    flex-direction: column;
    gap: var(--spacing-sm);
    text-align: center;
  }

  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    padding: var(--spacing-sm) 0;
    margin-top: var(--spacing-xs);
    min-width: auto;
  }

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

  .dropdown-section h4 {
    font-size: 0.8rem;
    margin-bottom: var(--spacing-xs);
  }

  .dropdown-section ul li a {
    padding: var(--spacing-xs) 0;
    font-size: 0.875rem;
  }
  
  .header-actions {
    order: 2;
  }
  
  .mobile-menu-toggle {
    display: flex;
    order: 1;
  }
  
  .mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .services-grid {
    grid-template-columns: 1fr;
  }
  
  .process-steps {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: var(--spacing-xl) 0;
  }
  
  .hero-title {
    font-size: 1.75rem;
  }
  
  .hero-subtitle {
    font-size: 1rem;
  }
  
  .simulator-card {
    padding: var(--spacing-lg);
  }
  
  .service-card {
    padding: var(--spacing-lg);
  }
  
  .btn {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.875rem;
  }
  
  .btn-large {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 1rem;
  }
}

/* ========================================
   UTILITY CLASSES
   ======================================== */

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

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

.text-right {
  text-align: right;
}

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.hidden {
  display: none;
}

.visible {
  display: block;
}

/* ========================================
   ANIMATIONS
   ======================================== */

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

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

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

.animate-fade-in {
  animation: fadeIn 0.6s ease-out;
}

/* ========================================
   ACCESSIBILITY
   ======================================== */

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

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

/* Focus styles for accessibility */
button:focus,
input:focus,
select:focus,
a:focus {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}