/* ========================================
   Intentflow - Global Styles
   ======================================== */

/* CSS Variables */
:root {
  --primary: #E8734A;
  --primary-dark: #D4613A;
  --primary-light: #FDF0EB;
  --primary-soft: #FEF6F3;

  --text: #1F2937;
  --text-light: #6B7280;
  --text-muted: #9CA3AF;

  --bg: #FFFBF8;
  --bg-warm: #FFF5F0;
  --card: #FFFFFF;
  --border: #F3D2C4;
  --border-light: #FEEAE3;

  --shadow-sm: 0 2px 8px rgba(232, 115, 74, 0.06);
  --shadow: 0 8px 30px rgba(232, 115, 74, 0.10);
  --shadow-lg: 0 16px 50px rgba(232, 115, 74, 0.14);

  --radius-sm: 12px;
  --radius: 16px;
  --radius-lg: 24px;

  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-main: 'Inter', 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Plus Jakarta Sans', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

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

body {
  font-family: var(--font-main);
  color: var(--text);
  background-color: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

ul, ol {
  list-style: none;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.02em;
  overflow-wrap: break-word;
  word-wrap: break-word;
}

h1 {
  font-size: clamp(2.25rem, 6vw, 4rem);
}

h2 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
}

h3 {
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
}

p {
  color: var(--text-light);
}

.section-label {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.75rem;
}

.section-title {
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.125rem;
  max-width: 600px;
  margin: 0 auto;
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

section {
  padding: 4rem 0;
}

@media (min-width: 768px) {
  section {
    padding: 5.5rem 0;
  }
}

@media (min-width: 1024px) {
  section {
    padding: 7rem 0;
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 1rem;
  padding: 0.875rem 1.75rem;
  border-radius: 100px;
  transition: var(--transition);
}

.btn-primary {
  background-color: var(--primary);
  color: white;
  box-shadow: 0 4px 14px rgba(232, 115, 74, 0.35);
}

.btn-primary:hover {
  background-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(232, 115, 74, 0.45);
}

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

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

.btn-secondary:hover {
  border-color: var(--primary);
  background-color: var(--primary-soft);
  transform: translateY(-2px);
}

.btn-large {
  padding: 1rem 2rem;
  font-size: 1.0625rem;
}

/* Cards */
.card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  transition: var(--transition);
}

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

@media (min-width: 768px) {
  .card {
    padding: 2rem;
  }
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1rem 0;
  transition: var(--transition);
}

.navbar.scrolled {
  background-color: rgba(255, 251, 248, 0.95);
  backdrop-filter: blur(12px);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
  padding: 0.75rem 0;
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo span {
  color: var(--primary);
}

.logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1rem;
  font-weight: 700;
}

.nav-links {
  display: none;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-light);
  transition: var(--transition);
}

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

.nav-cta {
  background-color: var(--primary);
  color: white;
  padding: 0.625rem 1.25rem;
  border-radius: 100px;
  font-weight: 600;
  font-size: 0.9375rem;
  transition: var(--transition);
}

.nav-cta:hover {
  background-color: var(--primary-dark);
  transform: translateY(-1px);
}

.language-selector {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-light);
  cursor: pointer;
}

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

.mobile-menu-btn {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
}

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

@media (min-width: 768px) {
  .nav-links {
    display: flex;
  }

  .mobile-menu-btn {
    display: none;
  }
}

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 80%;
  max-width: 320px;
  height: 100vh;
  background-color: var(--card);
  z-index: 1001;
  padding: 5rem 1.5rem 2rem;
  box-shadow: var(--shadow-lg);
  transition: right 0.3s ease;
}

.mobile-menu.active {
  right: 0;
}

.mobile-menu .nav-link {
  display: block;
  padding: 1rem 0;
  font-size: 1.125rem;
  border-bottom: 1px solid var(--border-light);
}

.mobile-menu .nav-cta {
  display: inline-block;
  margin-top: 1.5rem;
  text-align: center;
}

.overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.4);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.overlay.active {
  opacity: 1;
  visibility: visible;
}

/* Hero */
.hero {
  padding-top: 8rem;
  padding-bottom: 4rem;
  background: linear-gradient(135deg, var(--bg) 0%, var(--bg-warm) 50%, var(--primary-soft) 100%);
  position: relative;
  overflow: hidden;
  isolation: isolate;
}

.hero::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(232, 115, 74, 0.12) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: rgba(232, 115, 74, 0.1);
  color: var(--primary-dark);
  padding: 0.5rem 1rem;
  border-radius: 100px;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.hero h1 {
  margin-bottom: 1.25rem;
  color: var(--text);
}

.hero h1 em {
  color: var(--primary);
  font-style: normal;
}

.hero-description {
  font-size: 1.125rem;
  margin-bottom: 2rem;
  color: var(--text-light);
}

.hero-cta {
  margin-bottom: 1rem;
}

.hero-note {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.hero-visual {
  margin-top: 3rem;
  display: flex;
  justify-content: center;
}

.hero-search-demo {
  background: var(--card);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  max-width: 420px;
  width: 100%;
}

.search-bar-demo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 0.75rem 1rem;
}

.search-bar-demo svg {
  flex-shrink: 0;
  color: var(--text-muted);
}

.search-bar-demo input {
  border: none;
  background: transparent;
  outline: none;
  font-size: 0.9375rem;
  color: var(--text);
  width: 100%;
}

.search-results-demo {
  margin-top: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.mini-product {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem;
  background: var(--bg);
  border-radius: var(--radius-sm);
}

.mini-product-img {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--border-light) 100%);
  border-radius: 8px;
  flex-shrink: 0;
}

.mini-product-info h4 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
}

.mini-product-info p {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

@media (min-width: 768px) {
  .hero {
    padding-top: 10rem;
    padding-bottom: 6rem;
  }

  .hero-description {
    font-size: 1.25rem;
  }
}

/* Problem Section */
.problem {
  background-color: var(--card);
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.problem-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

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

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

.search-box-mock {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  margin-bottom: 1rem;
  text-align: left;
}

.search-box-mock .search-input {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text);
  font-size: 0.9375rem;
}

.search-box-mock .search-input svg {
  color: var(--text-muted);
}

.search-box-mock .search-result {
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-light);
  font-size: 0.875rem;
  color: var(--text-light);
}

.search-box-mock .search-result .fail {
  color: #DC2626;
  font-weight: 600;
}

.highlight-query {
  color: #DC2626;
  font-weight: 700;
  background-color: rgba(220, 38, 38, 0.08);
  padding: 0.125rem 0.375rem;
  border-radius: 4px;
}

.problem-card h3 {
  margin-bottom: 0.5rem;
  color: var(--text);
}

.problem-card p {
  font-size: 0.9375rem;
}

/* How It Works */
.how-it-works {
  background-color: var(--bg-warm);
}

.steps-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-top: 3rem;
}

@media (min-width: 768px) {
  .steps-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }
}

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

.step-icon {
  width: 72px;
  height: 72px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.25rem;
  font-size: 1.75rem;
  box-shadow: 0 8px 24px rgba(232, 115, 74, 0.3);
}

.step-number {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--primary-light);
  color: var(--primary-dark);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
  margin-top: -0.75rem;
}

.step-card h3 {
  margin-bottom: 0.75rem;
}

.step-card p {
  font-size: 0.9375rem;
}

.step-arrow {
  display: none;
  position: absolute;
  right: -1.5rem;
  top: 2.5rem;
  transform: translateX(50%);
  color: var(--primary);
  opacity: 0.4;
}

@media (min-width: 768px) {
  .step-arrow {
    display: block;
  }

  .step-card:last-child .step-arrow {
    display: none;
  }
}

/* Stats & Trust */
.stats {
  background-color: var(--card);
}

.stats-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-bottom: 4rem;
}

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

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

.stat-number {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 1rem;
  color: var(--text-light);
  font-weight: 500;
}

/* Before / After */
.before-after {
  background: linear-gradient(180deg, var(--card) 0%, var(--bg) 100%);
  border-radius: var(--radius-lg);
  padding: 2rem 1.25rem;
  max-width: 1000px;
  margin: 0 auto;
}

.before-after-header {
  text-align: center;
  margin-bottom: 2rem;
}

.before-after-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
}

@media (min-width: 768px) {
  .before-after-grid {
    grid-template-columns: 1fr auto 1fr;
  }
}

.phone-frame {
  background: var(--card);
  border: 8px solid var(--text);
  border-radius: 32px;
  padding: 1rem;
  box-shadow: var(--shadow);
  max-width: 280px;
  margin: 0 auto;
}

.phone-notch {
  width: 60px;
  height: 16px;
  background: var(--text);
  border-radius: 0 0 12px 12px;
  margin: -1rem auto 0.75rem;
}

.phone-screen {
  background: var(--bg);
  border-radius: 20px;
  padding: 1rem;
  min-height: 280px;
}

.phone-search {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 0.5rem 0.75rem;
  margin-bottom: 1rem;
  font-size: 0.8125rem;
}

.phone-result {
  text-align: center;
  padding: 2rem 1rem;
}

.phone-result.fail p {
  color: #DC2626;
  font-weight: 600;
}

.phone-result.success .product-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.product-card-mock {
  background: var(--card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.product-thumb {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--border-light) 100%);
  border-radius: 8px;
  flex-shrink: 0;
}

.product-info h5 {
  font-size: 0.8125rem;
  margin-bottom: 0.25rem;
}

.product-info p {
  font-size: 0.75rem;
}

.arrow-between {
  display: none;
  align-items: center;
  justify-content: center;
  color: var(--primary);
}

@media (min-width: 768px) {
  .arrow-between {
    display: flex;
  }
}

/* Audit Form */
.audit-form-section {
  background: linear-gradient(135deg, var(--primary-soft) 0%, var(--bg-warm) 100%);
}

.audit-form-container {
  max-width: 640px;
  margin: 0 auto;
  background: var(--card);
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

@media (min-width: 768px) {
  .audit-form-container {
    padding: 3rem;
  }
}

.audit-form-header {
  text-align: center;
  margin-bottom: 2rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg);
  font-size: 1rem;
  color: var(--text);
  transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(232, 115, 74, 0.12);
}

.form-group input::placeholder {
  color: var(--text-muted);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

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

.form-submit {
  width: 100%;
  margin-top: 0.5rem;
}

.form-note {
  text-align: center;
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-top: 1rem;
}

.form-message {
  margin-top: 1rem;
  padding: 0.875rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  font-weight: 500;
  display: none;
}

.form-message.success {
  display: block;
  background-color: rgba(34, 197, 94, 0.1);
  color: #15803D;
}

.form-message.error {
  display: block;
  background-color: rgba(220, 38, 38, 0.1);
  color: #B91C1C;
}

/* Footer */
.footer {
  background-color: var(--text);
  color: white;
  padding: 3rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

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

.footer-brand .logo {
  color: white;
  margin-bottom: 1rem;
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9375rem;
  max-width: 300px;
}

.footer-title {
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
  color: rgba(255, 255, 255, 0.9);
}

.footer-links li {
  margin-bottom: 0.625rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9375rem;
  transition: var(--transition);
}

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

.social-links {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

.social-links a {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.social-links a:hover {
  background: var(--primary);
  transform: translateY(-2px);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 1.5rem;
  text-align: center;
}

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

/* Scroll Reveal Animations */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 {
  transition-delay: 0.1s;
}

.reveal-delay-2 {
  transition-delay: 0.2s;
}

.reveal-delay-3 {
  transition-delay: 0.3s;
}

/* Utility */
.text-center {
  text-align: center;
}

.text-primary {
  color: var(--primary);
}

.hidden {
  display: none !important;
}

/* Audit Tool Page Specific */
.audit-page {
  padding-top: 7rem;
  min-height: 100vh;
}

.audit-page .audit-form-section {
  background: transparent;
  padding: 0;
}

.audit-page .audit-form-container {
  max-width: 720px;
}

.audit-result {
  margin-top: 2rem;
  display: none;
}

.audit-result.active {
  display: block;
}

.score-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.score-card {
  background: var(--bg);
  border-radius: var(--radius-sm);
  padding: 1rem;
  text-align: center;
}

.score-card .value {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--primary);
}

.score-card .label {
  font-size: 0.75rem;
  color: var(--text-light);
  margin-top: 0.25rem;
}

.result-summary {
  background: var(--bg);
  border-radius: var(--radius-sm);
  padding: 1rem;
  font-size: 0.9375rem;
  color: var(--text);
  margin-bottom: 1rem;
}

.result-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.result-table th,
.result-table td {
  padding: 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--border-light);
}

.result-table th {
  font-weight: 600;
  color: var(--text);
  background: var(--bg);
}

.result-table td {
  color: var(--text-light);
}

.badge {
  display: inline-block;
  padding: 0.25rem 0.5rem;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-l1 {
  background: rgba(232, 115, 74, 0.12);
  color: var(--primary-dark);
}

.badge-l2 {
  background: rgba(59, 130, 246, 0.12);
  color: #1D4ED8;
}

.badge-l3 {
  background: rgba(16, 185, 129, 0.12);
  color: #047857;
}

.status-found {
  color: #15803D;
  font-weight: 600;
}

.status-missing {
  color: #DC2626;
  font-weight: 600;
}

.loading {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .card:hover,
  .btn:hover,
  .btn-primary:hover,
  .btn-secondary:hover,
  .nav-cta:hover,
  .social-links a:hover {
    transform: none;
  }
}