/* ABC Seamless Windows Landing Page - Professional Design */

/* =========================================
   CSS VARIABLES
   ========================================= */
:root {
  /* Brand Colors */
  --yellow: #FFDC31;
  --yellow-dark: #e5c52c;
  --yellow-light: #fff7c7;
  --black: #000000;
  --dark: #54595F;
  --dark-light: #6b7280;
  --light: #f2f2f2;
  --lighter: #f8f9fa;
  --white: #FFFFFF;
  
  /* Functional Colors */
  --success: #22c55e;
  --error: #ef4444;
  --error-bg: #fef2f2;
  --error-border: #fecaca;
  
  /* Typography */
  --font-primary: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'DM Serif Display', Georgia, serif;
  
  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 96px;
  
  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 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);
  --shadow-2xl: 0 25px 50px -12px rgba(0,0,0,0.25);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
}

/* =========================================
   RESET & BASE
   ========================================= */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  font-size: 16px;
  line-height: 1.6;
  color: var(--dark);
  background: var(--white);
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

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

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

@media (max-width: 768px) {
  .section {
    padding: var(--space-3xl) 0;
  }
}

/* =========================================
   TYPOGRAPHY
   ========================================= */
.section-kicker {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--dark-light);
  margin-bottom: var(--space-md);
}

.section-kicker-light {
  color: rgba(255,255,255,0.8);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 5vw, 42px);
  font-weight: 400;
  line-height: 1.2;
  color: var(--black);
  margin-bottom: var(--space-md);
}

.section-title-light {
  color: var(--white);
}

.section-subtitle {
  font-size: 18px;
  color: var(--dark-light);
  max-width: 640px;
}

.section-subtitle-light {
  color: rgba(255,255,255,0.85);
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section-header .section-subtitle {
  margin: 0 auto;
}

/* =========================================
   BUTTONS
   ========================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 14px 28px;
  font-family: var(--font-primary);
  font-size: 15px;
  font-weight: 700;
  line-height: 1;
  border-radius: var(--radius-full);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
}

.btn svg {
  flex-shrink: 0;
}

.btn-sm {
  padding: 10px 20px;
  font-size: 14px;
}

.btn-lg {
  padding: 18px 36px;
  font-size: 16px;
}

.btn-block {
  width: 100%;
}

.btn-primary {
  background: var(--yellow);
  color: var(--black);
  border-color: var(--black);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  background: var(--yellow-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-primary:active {
  transform: translateY(0);
}

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

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

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

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

/* =========================================
   HEADER
   ========================================= */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0,0,0,0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) 0;
  gap: var(--space-md);
}

.logo img {
  height: 44px;
  width: auto;
}

.header-cta {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.phone-link {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 800;
  color: var(--black);
  transition: color var(--transition-fast);
}

.phone-link:hover {
  color: var(--dark);
}

@media (max-width: 640px) {
  .header-cta .btn {
    display: none;
  }
}

/* =========================================
   HERO SECTION
   ========================================= */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,0,0,0.75) 0%, rgba(0,0,0,0.5) 50%, rgba(0,0,0,0.3) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: var(--space-4xl) 0;
}

.hero-text {
  max-width: 700px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 600;
  color: var(--white);
  margin-bottom: var(--space-lg);
}

.badge-dot {
  width: 8px;
  height: 8px;
  background: var(--yellow);
  border-radius: 50%;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(36px, 6vw, 56px);
  font-weight: 400;
  line-height: 1.1;
  color: var(--white);
  margin-bottom: var(--space-lg);
}

.hero-subtitle {
  font-size: 18px;
  line-height: 1.7;
  color: rgba(255,255,255,0.9);
  margin-bottom: var(--space-xl);
}

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

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 14px;
  font-weight: 600;
  color: rgba(255,255,255,0.9);
}

.trust-item svg {
  color: var(--yellow);
}

/* Animations */
.animate-fade-up {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.6s ease forwards;
}

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

@keyframes fadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* =========================================
   PROBLEMS SECTION
   ========================================= */
.section-problems {
  background: var(--lighter);
}

.problems-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

@media (max-width: 900px) {
  .problems-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .problems-grid {
    grid-template-columns: 1fr;
  }
}

.problem-card {
  background: var(--white);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(0,0,0,0.06);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

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

.problem-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--yellow-light);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
}

.problem-icon svg {
  color: var(--black);
}

.problem-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--black);
  margin-bottom: var(--space-sm);
}

.problem-card p {
  font-size: 15px;
  color: var(--dark-light);
  line-height: 1.6;
}

.problems-cta {
  text-align: center;
  margin-top: var(--space-3xl);
}

.problems-cta-text {
  font-size: 18px;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: var(--space-md);
}

/* =========================================
   SOLUTION SECTION
   ========================================= */
.section-solution {
  position: relative;
  padding: var(--space-4xl) 0;
  overflow: hidden;
}

.solution-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.solution-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.solution-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,0,0,0.9) 0%, rgba(0,0,0,0.8) 100%);
}

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

.solution-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  margin: var(--space-3xl) 0;
}

@media (max-width: 768px) {
  .solution-features {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
}

.solution-feature {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
}

.feature-number {
  font-family: var(--font-display);
  font-size: 48px;
  line-height: 1;
  color: var(--yellow);
}

.feature-text {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.feature-text strong {
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
}

.feature-text span {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  line-height: 1.5;
}

.solution-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

/* =========================================
   BENEFITS SECTION
   ========================================= */
.section-benefits {
  background: var(--white);
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

@media (max-width: 900px) {
  .benefits-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .benefits-grid {
    grid-template-columns: 1fr;
  }
}

.benefit-card {
  text-align: center;
  padding: var(--space-xl);
}

.benefit-icon-wrap {
  width: 72px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--yellow);
  border: 3px solid var(--black);
  border-radius: var(--radius-lg);
  margin: 0 auto var(--space-lg);
}

.benefit-icon-wrap svg {
  color: var(--black);
}

.benefit-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--black);
  margin-bottom: var(--space-sm);
}

.benefit-card p {
  font-size: 15px;
  color: var(--dark-light);
  line-height: 1.6;
}

/* =========================================
   PROCESS SECTION
   ========================================= */
.section-process {
  background: var(--lighter);
}

.process-steps {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
}

.process-step {
  flex: 1;
  min-width: 200px;
  max-width: 260px;
  text-align: center;
  padding: var(--space-lg);
}

.step-number {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--yellow);
  border: 3px solid var(--black);
  border-radius: 50%;
  font-size: 24px;
  font-weight: 800;
  color: var(--black);
  margin: 0 auto var(--space-md);
}

.step-content h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--black);
  margin-bottom: var(--space-sm);
}

.step-content p {
  font-size: 14px;
  color: var(--dark-light);
  line-height: 1.6;
}

.process-connector {
  width: 60px;
  height: 2px;
  background: var(--dark-light);
  margin-top: 44px;
  opacity: 0.3;
}

@media (max-width: 900px) {
  .process-connector {
    display: none;
  }
  
  .process-steps {
    flex-direction: column;
    align-items: center;
  }
  
  .process-step {
    max-width: 100%;
  }
}

.process-cta {
  text-align: center;
  margin-top: var(--space-3xl);
}

/* =========================================
   TESTIMONIALS SECTION
   ========================================= */
.section-testimonials {
  background: var(--white);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

@media (max-width: 900px) {
  .testimonials-grid {
    grid-template-columns: 1fr;
    max-width: 600px;
    margin: 0 auto;
  }
}

.testimonial-card {
  background: var(--lighter);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(0,0,0,0.06);
}

.testimonial-stars {
  font-size: 20px;
  color: var(--yellow);
  letter-spacing: 2px;
  margin-bottom: var(--space-md);
  text-shadow: 0 0 1px var(--black);
}

.testimonial-quote {
  font-size: 16px;
  line-height: 1.7;
  color: var(--dark);
  margin-bottom: var(--space-lg);
  font-style: italic;
}

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

.author-avatar {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--yellow);
  border: 2px solid var(--black);
  border-radius: 50%;
  font-weight: 800;
  font-size: 14px;
  color: var(--black);
}

.author-info {
  display: flex;
  flex-direction: column;
}

.author-info strong {
  font-size: 15px;
  color: var(--black);
}

.author-info span {
  font-size: 13px;
  color: var(--dark-light);
}

.testimonials-note {
  text-align: center;
  margin-top: var(--space-xl);
  font-size: 13px;
  color: var(--dark-light);
  font-style: italic;
}

/* =========================================
   QUOTE FORM SECTION
   ========================================= */
.section-quote {
  background: linear-gradient(135deg, var(--black) 0%, #1a1a1a 100%);
}

.quote-wrapper {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: var(--space-3xl);
  align-items: start;
}

@media (max-width: 900px) {
  .quote-wrapper {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
}

.quote-info {
  color: var(--white);
}

.quote-info .section-kicker {
  color: var(--yellow);
}

.quote-info .section-title {
  color: var(--white);
}

.quote-description {
  font-size: 17px;
  color: rgba(255,255,255,0.8);
  line-height: 1.7;
  margin-bottom: var(--space-xl);
}

.quote-benefits {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.quote-benefit {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  font-size: 15px;
  color: rgba(255,255,255,0.9);
}

.quote-benefit svg {
  color: var(--yellow);
  flex-shrink: 0;
}

.quote-phone p {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  margin-bottom: var(--space-sm);
}

.phone-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 24px;
  font-weight: 800;
  color: var(--yellow);
  transition: opacity var(--transition-fast);
}

.phone-cta:hover {
  opacity: 0.8;
}

/* Form Styles */
.quote-form-wrap {
  background: var(--white);
  padding: var(--space-xl);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-2xl);
}

.form-error {
  background: var(--error-bg);
  border: 1px solid var(--error-border);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
  color: var(--error);
}

.form-error ul {
  margin-top: var(--space-sm);
  padding-left: var(--space-lg);
  list-style: disc;
}

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

@media (max-width: 500px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

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

.form-group label {
  font-size: 14px;
  font-weight: 600;
  color: var(--black);
}

.required {
  color: var(--error);
}

.form-group input,
.form-group select {
  padding: 14px 16px;
  font-family: var(--font-primary);
  font-size: 16px;
  border: 2px solid #e5e5e5;
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  background: var(--white);
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--yellow);
  box-shadow: 0 0 0 4px rgba(255,220,49,0.2);
}

.form-group input::placeholder {
  color: #aaa;
}

.form-group-consent {
  margin-top: var(--space-sm);
}

.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  margin-top: 2px;
  cursor: pointer;
}

.checkbox-text {
  font-size: 12px;
  line-height: 1.6;
  color: var(--dark-light);
}

.checkbox-text a {
  color: var(--black);
  text-decoration: underline;
}

.form-actions {
  margin-top: var(--space-md);
}

.form-note {
  font-size: 13px;
  color: var(--dark-light);
  text-align: center;
  margin-top: var(--space-md);
}

/* =========================================
   FAQ SECTION
   ========================================= */
.section-faq {
  background: var(--lighter);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.faq-item {
  background: var(--white);
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg) var(--space-xl);
  cursor: pointer;
  font-size: 17px;
  font-weight: 600;
  color: var(--black);
  transition: background var(--transition-fast);
}

.faq-question:hover {
  background: var(--lighter);
}

.faq-question svg {
  flex-shrink: 0;
  transition: transform var(--transition-base);
  color: var(--dark-light);
}

.faq-item[open] .faq-question svg {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 var(--space-xl) var(--space-lg);
}

.faq-answer p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--dark);
}

.faq-cta {
  text-align: center;
  margin-top: var(--space-3xl);
}

.faq-cta p {
  font-size: 17px;
  color: var(--dark);
  margin-bottom: var(--space-md);
}

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

/* =========================================
   FOOTER
   ========================================= */
.footer {
  background: var(--black);
  color: var(--white);
  padding: var(--space-3xl) 0 var(--space-xl);
}

.footer-content {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: var(--space-3xl);
  margin-bottom: var(--space-3xl);
}

@media (max-width: 768px) {
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
    text-align: center;
  }
}

.footer-brand img {
  height: 40px;
  margin-bottom: var(--space-md);
}

@media (max-width: 768px) {
  .footer-brand img {
    margin: 0 auto var(--space-md);
  }
}

.footer-brand p {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  line-height: 1.6;
}

.footer-contact h4,
.footer-cta h4 {
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: var(--space-md);
  color: rgba(255,255,255,0.5);
}

.footer-phone {
  display: block;
  font-size: 20px;
  font-weight: 800;
  color: var(--yellow);
  margin-bottom: var(--space-sm);
}

.footer-contact p {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  line-height: 1.6;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-xl);
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 13px;
  color: rgba(255,255,255,0.5);
}

.footer-bottom a {
  color: rgba(255,255,255,0.7);
  transition: color var(--transition-fast);
}

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

@media (max-width: 600px) {
  .footer-bottom {
    flex-direction: column;
    gap: var(--space-sm);
    text-align: center;
  }
}

/* =========================================
   UTILITIES
   ========================================= */
.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;
}