/* ===================================
   Income W2 - Accounting Services
   Main Stylesheet
   =================================== */

/* CSS Variables */
:root {
  --primary-dark: #1e3a5f;
  --primary-medium: #2d5a87;
  --primary-light: #4a7fb5;
  --accent-gold: #c9a227;
  --accent-gold-light: #e0c35a;
  --text-dark: #2c3e50;
  --text-medium: #5a6c7d;
  --text-light: #8899a6;
  --bg-white: #ffffff;
  --bg-light: #f8f9fa;
  --bg-cream: #fdfcf8;
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
  --transition: all 0.3s ease;
  --border-radius: 8px;
  --border-radius-lg: 16px;
}

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

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
  background-color: var(--bg-white);
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Playfair Display', Georgia, 'Times New Roman', serif;
  font-weight: 600;
  line-height: 1.3;
  color: var(--primary-dark);
}

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

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===================================
   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);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

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

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  width: 48px;
  height: 48px;
}

.logo-text {
  font-family: 'Playfair Display', serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-dark);
}

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

.nav-links {
  display: flex;
  list-style: none;
  gap: 32px;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-medium);
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-gold);
  transition: var(--transition);
}

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

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

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--primary-dark);
  transition: var(--transition);
}

/* ===================================
   Hero Section
   =================================== */
.hero {
  padding: 160px 0 100px;
  background: linear-gradient(135deg, var(--bg-cream) 0%, var(--bg-light) 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 70%;
  height: 200%;
  background: linear-gradient(135deg, rgba(201, 162, 39, 0.05) 0%, rgba(30, 58, 95, 0.03) 100%);
  transform: rotate(-15deg);
  pointer-events: none;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-text h1 {
  font-size: 3.5rem;
  margin-bottom: 24px;
  color: var(--primary-dark);
}

.hero-text h1 span {
  color: var(--accent-gold);
}

.hero-text .tagline {
  font-size: 1.25rem;
  color: var(--text-medium);
  margin-bottom: 32px;
  line-height: 1.7;
}

.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 48px;
}

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

.stat-number {
  font-family: 'Playfair Display', serif;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary-dark);
  display: block;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-medium);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.hero-visual {
  position: relative;
}

.hero-card {
  background: var(--bg-white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 40px;
  position: relative;
}

.hero-card::before {
  content: '';
  position: absolute;
  top: -10px;
  left: -10px;
  right: 10px;
  bottom: 10px;
  border: 2px solid var(--accent-gold);
  border-radius: var(--border-radius-lg);
  z-index: -1;
}

.hero-card-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-medium) 100%);
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}

.hero-card-icon svg {
  width: 32px;
  height: 32px;
  stroke: var(--accent-gold);
}

.hero-card h3 {
  font-size: 1.5rem;
  margin-bottom: 16px;
}

.hero-card p {
  color: var(--text-medium);
  margin-bottom: 24px;
}

.hero-card-features {
  list-style: none;
}

.hero-card-features li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
  color: var(--text-medium);
  font-size: 0.95rem;
}

.hero-card-features li svg {
  width: 20px;
  height: 20px;
  stroke: var(--accent-gold);
  flex-shrink: 0;
}

/* ===================================
   Services Section
   =================================== */
.services {
  padding: 100px 0;
  background: var(--bg-white);
}

.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 60px;
}

.section-label {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent-gold);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 16px;
}

.section-header h2 {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.section-header p {
  color: var(--text-medium);
  font-size: 1.1rem;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.service-card {
  background: var(--bg-light);
  border-radius: var(--border-radius-lg);
  padding: 40px 32px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

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

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  background: var(--bg-white);
}

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

.service-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-medium) 100%);
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}

.service-icon svg {
  width: 28px;
  height: 28px;
  stroke: var(--accent-gold);
}

.service-card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.service-card p {
  color: var(--text-medium);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ===================================
   About Section
   =================================== */
.about {
  padding: 100px 0;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-medium) 100%);
  color: var(--bg-white);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-text .section-label {
  color: var(--accent-gold-light);
}

.about-text h2 {
  font-size: 2.5rem;
  color: var(--bg-white);
  margin-bottom: 24px;
}

.about-text p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 1.1rem;
  margin-bottom: 32px;
  line-height: 1.8;
}

.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.about-feature {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.about-feature-icon {
  width: 48px;
  height: 48px;
  background: rgba(201, 162, 39, 0.15);
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.about-feature-icon svg {
  width: 24px;
  height: 24px;
  stroke: var(--accent-gold);
}

.about-feature h4 {
  color: var(--bg-white);
  font-size: 1rem;
  margin-bottom: 4px;
}

.about-feature p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.875rem;
  margin-bottom: 0;
}

.about-visual {
  position: relative;
}

.about-card {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--border-radius-lg);
  padding: 48px;
}

.about-card-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 32px;
}

.about-card-header .icon-circle {
  width: 64px;
  height: 64px;
  background: var(--accent-gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-card-header .icon-circle svg {
  width: 32px;
  height: 32px;
  stroke: var(--primary-dark);
}

.about-card-header h3 {
  color: var(--bg-white);
  font-size: 1.5rem;
}

.about-stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.about-stat {
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--border-radius);
  padding: 24px;
  text-align: center;
}

.about-stat-number {
  font-family: 'Playfair Display', serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent-gold);
  display: block;
}

.about-stat-label {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.875rem;
}

/* ===================================
   Why Choose Us Section
   =================================== */
.why-us {
  padding: 100px 0;
  background: var(--bg-cream);
}

.why-us-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.why-us-item {
  text-align: center;
  padding: 32px 24px;
}

.why-us-icon {
  width: 80px;
  height: 80px;
  background: var(--bg-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

.why-us-item:hover .why-us-icon {
  transform: scale(1.1);
  box-shadow: var(--shadow-lg);
}

.why-us-icon svg {
  width: 36px;
  height: 36px;
  stroke: var(--primary-dark);
}

.why-us-item h3 {
  font-size: 1.125rem;
  margin-bottom: 12px;
}

.why-us-item p {
  color: var(--text-medium);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* ===================================
   Testimonials Section
   =================================== */
.testimonials {
  padding: 100px 0;
  background: var(--bg-white);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.testimonial-card {
  background: var(--bg-light);
  border-radius: var(--border-radius-lg);
  padding: 40px;
  position: relative;
}

.testimonial-card::before {
  content: '"';
  font-family: 'Playfair Display', serif;
  font-size: 6rem;
  color: var(--accent-gold);
  opacity: 0.2;
  position: absolute;
  top: 20px;
  left: 30px;
  line-height: 1;
}

.testimonial-text {
  position: relative;
  z-index: 1;
  color: var(--text-medium);
  font-size: 1rem;
  line-height: 1.8;
  font-style: italic;
  margin-bottom: 24px;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 16px;
}

.testimonial-avatar {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-medium) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-gold);
  font-family: 'Playfair Display', serif;
  font-size: 1.25rem;
  font-weight: 600;
}

.testimonial-info h4 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.testimonial-info p {
  color: var(--text-light);
  font-size: 0.875rem;
}

/* ===================================
   Footer
   =================================== */
.footer {
  background: var(--primary-dark);
  color: var(--bg-white);
  padding: 60px 0 30px;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 40px;
}

.footer-brand .logo-text {
  color: var(--bg-white);
  font-size: 1.75rem;
  margin-bottom: 16px;
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.7);
  max-width: 300px;
  line-height: 1.7;
}

.footer-links {
  display: flex;
  gap: 80px;
}

.footer-column h4 {
  color: var(--bg-white);
  font-size: 1rem;
  margin-bottom: 20px;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
}

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

.footer-column li {
  margin-bottom: 12px;
}

.footer-column a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  font-size: 0.9rem;
  transition: var(--transition);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-bottom p {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.875rem;
}

.footer-certifications {
  display: flex;
  gap: 16px;
}

.certification-badge {
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius);
  padding: 8px 16px;
  font-size: 0.75rem;
  color: var(--accent-gold);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ===================================
   Animations
   =================================== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-delay-1 {
  transition-delay: 0.1s;
}

.fade-in-delay-2 {
  transition-delay: 0.2s;
}

.fade-in-delay-3 {
  transition-delay: 0.3s;
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .hero-visual {
    max-width: 500px;
    margin: 0 auto;
  }

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

  .about-content {
    grid-template-columns: 1fr;
    gap: 48px;
  }

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

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

  .footer-content {
    flex-direction: column;
    gap: 40px;
  }

  .footer-links {
    gap: 40px;
  }
}

@media (max-width: 768px) {
  html {
    font-size: 15px;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-white);
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    box-shadow: var(--shadow-md);
  }

  .nav-links.active {
    display: flex;
  }

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

  .hero {
    padding: 120px 0 80px;
  }

  .hero-text h1 {
    font-size: 2.5rem;
  }

  .hero-stats {
    gap: 24px;
  }

  .stat-number {
    font-size: 2rem;
  }

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

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

  .why-us-grid {
    grid-template-columns: 1fr;
  }

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

  .section-header h2 {
    font-size: 2rem;
  }

  .footer-links {
    flex-wrap: wrap;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

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

  .hero-stats {
    flex-direction: column;
    gap: 16px;
  }

  .hero-card {
    padding: 24px;
  }

  .about-stats-grid {
    grid-template-columns: 1fr;
  }
}