/* ==========================================================================
   AuthenX Website Stylesheet
   ========================================================================== */

/* ==========================================================================
   1. CSS Custom Properties
   ========================================================================== */

:root {
  /* Brand Colors */
  --color-primary: #22c55e;
  --color-primary-dark: #16a34a;
  --color-primary-light: #4ade80;
  --color-dark: #0f172a;
  --color-dark-light: #1e293b;
  --color-gray: #64748b;
  --color-gray-light: #94a3b8;
  --color-gray-lighter: #e2e8f0;
  --color-white: #ffffff;
  --color-bg: #f8fafc;
  --color-error: #ef4444;
  --color-success: #22c55e;

  /* Typography */
  --font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3rem;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Layout */
  --max-width: 1200px;
  --header-height: 72px;
  --border-radius: 8px;
  --border-radius-lg: 12px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --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);
}


/* ==========================================================================
   2. Reset & Base Styles
   ========================================================================== */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-dark);
  background-color: var(--color-white);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

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

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

ul,
ol {
  list-style: none;
}

button,
input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
}

/* ==========================================================================
   3. Layout & Grid System
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.main {
  flex: 1;
}

/* Responsive Grid */
.grid {
  display: grid;
  gap: var(--space-6);
}

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

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

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

@media (min-width: 640px) {
  .container {
    padding: 0 var(--space-6);
  }

  .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: 768px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }

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

@media (min-width: 1024px) {
  .container {
    padding: 0 var(--space-8);
  }
}

/* Flexbox 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-2 {
  gap: var(--space-2);
}

.gap-4 {
  gap: var(--space-4);
}

.gap-6 {
  gap: var(--space-6);
}

.gap-8 {
  gap: var(--space-8);
}


/* ==========================================================================
   4. Typography
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-dark);
}

h1 {
  font-size: var(--font-size-3xl);
}

h2 {
  font-size: var(--font-size-2xl);
}

h3 {
  font-size: var(--font-size-xl);
}

h4 {
  font-size: var(--font-size-lg);
}

@media (min-width: 640px) {
  h1 {
    font-size: var(--font-size-4xl);
  }

  h2 {
    font-size: var(--font-size-3xl);
  }
}

@media (min-width: 1024px) {
  h1 {
    font-size: var(--font-size-5xl);
  }
}

.text-sm {
  font-size: var(--font-size-sm);
}

.text-lg {
  font-size: var(--font-size-lg);
}

.text-xl {
  font-size: var(--font-size-xl);
}

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

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

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

/* ==========================================================================
   5. Header & Navigation
   ========================================================================== */

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-gray-lighter);
  height: var(--header-height);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-4);
}

@media (min-width: 640px) {
  .nav {
    padding: 0 var(--space-6);
  }
}

@media (min-width: 1024px) {
  .nav {
    padding: 0 var(--space-8);
  }
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 700;
  font-size: var(--font-size-xl);
  color: var(--color-dark);
}

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

.logo svg {
  width: 140px;
  height: 32px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.nav-links a {
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-3);
  color: var(--color-gray);
  font-weight: 500;
  border-radius: var(--border-radius);
  transition: color var(--transition-fast), background-color var(--transition-fast);
  /* Minimum touch target size for mobile */
  min-height: 44px;
  min-width: 44px;
  justify-content: center;
}

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

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

@media (min-width: 640px) {
  .nav-links {
    gap: var(--space-4);
  }

  .nav-links a {
    padding: var(--space-2) var(--space-4);
  }
}


/* ==========================================================================
   6. Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3) var(--space-6);
  font-weight: 600;
  font-size: var(--font-size-base);
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all var(--transition-fast);
  /* Minimum touch target size */
  min-height: 44px;
  min-width: 44px;
  text-decoration: none;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Primary Button with Vercel-style Glow Animation */
.btn-primary {
  position: relative;
  overflow: hidden;
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: var(--space-4) var(--space-8);
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  color: var(--color-white);
}

.btn-glow {
  position: absolute;
  inset: -50%;
  background: conic-gradient(from 0deg, transparent 0%, var(--color-primary-light) 10%, transparent 20%);
  opacity: 0;
  pointer-events: none;
}

.btn-primary:hover .btn-glow,
.btn-primary:active .btn-glow {
  animation: glow-spin 2s linear infinite;
  opacity: 0.4;
}

.btn-text {
  position: relative;
  z-index: 1;
}

@keyframes glow-spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* Secondary Button */
.btn-secondary {
  background-color: var(--color-dark);
  color: var(--color-white);
}

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

/* Outline Button */
.btn-outline {
  background-color: transparent;
  color: var(--color-dark);
  border: 2px solid var(--color-gray-lighter);
}

.btn-outline:hover {
  border-color: var(--color-gray);
  background-color: var(--color-bg);
}

/* Small Button */
.btn-small {
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-sm);
  min-height: 36px;
}

/* Button Loading State */
.btn-loading {
  position: relative;
  color: transparent;
}

.btn-loading::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-white);
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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


/* ==========================================================================
   7. Hero Section
   ========================================================================== */

.hero {
  padding: var(--space-16) 0;
  text-align: center;
}

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

.hero h1 {
  margin-bottom: var(--space-6);
}

.hero-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-gray);
  margin-bottom: var(--space-8);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  align-items: center;
}

@media (min-width: 640px) {
  .hero {
    padding: var(--space-20) 0;
  }

  .hero-subtitle {
    font-size: var(--font-size-xl);
  }

  .hero-cta {
    flex-direction: row;
    justify-content: center;
  }
}

@media (min-width: 1024px) {
  .hero {
    padding: var(--space-24) 0;
  }
}

/* ==========================================================================
   8. Trust Signals Section
   ========================================================================== */

.trust-signals {
  padding: var(--space-12) 0;
  background-color: var(--color-bg);
  border-top: 1px solid var(--color-gray-lighter);
  border-bottom: 1px solid var(--color-gray-lighter);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: var(--space-6);
  text-align: center;
}

.trust-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
}

.trust-icon {
  width: 48px;
  height: 48px;
  color: var(--color-primary);
}

.trust-label {
  font-weight: 600;
  color: var(--color-dark);
}

.trust-desc {
  font-size: var(--font-size-sm);
  color: var(--color-gray);
}

@media (min-width: 640px) {
  .trust-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ==========================================================================
   9. Sections
   ========================================================================== */

.section {
  padding: var(--space-16) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-12);
}

.section-header h2 {
  margin-bottom: var(--space-4);
}

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

@media (min-width: 640px) {
  .section {
    padding: var(--space-20) 0;
  }
}


/* ==========================================================================
   10. Forms
   ========================================================================== */

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

.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  margin-bottom: var(--space-2);
  font-weight: 500;
  color: var(--color-dark);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-base);
  color: var(--color-dark);
  background-color: var(--color-white);
  border: 2px solid var(--color-gray-lighter);
  border-radius: var(--border-radius);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  /* Minimum touch target height */
  min-height: 44px;
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.1);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-gray-light);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-error {
  display: none;
  margin-top: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-error);
}

.form-group.has-error .form-input,
.form-group.has-error .form-textarea {
  border-color: var(--color-error);
}

.form-group.has-error .form-error {
  display: block;
}

/* Honeypot field - hidden from users */
.hp-field {
  position: absolute;
  left: -9999px;
  opacity: 0;
  pointer-events: none;
}

/* Form Messages */
.form-message {
  padding: var(--space-4);
  border-radius: var(--border-radius);
  margin-bottom: var(--space-6);
  text-align: center;
}

.form-message-success {
  background-color: rgba(34, 197, 94, 0.1);
  color: var(--color-success);
  border: 1px solid var(--color-success);
}

.form-message-error {
  background-color: rgba(239, 68, 68, 0.1);
  color: var(--color-error);
  border: 1px solid var(--color-error);
}

/* ==========================================================================
   11. Footer
   ========================================================================== */

.footer {
  padding: var(--space-8) 0;
  background-color: var(--color-dark);
  color: var(--color-gray-light);
  margin-top: auto;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  text-align: center;
}

.footer a {
  color: var(--color-gray-light);
}

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

.footer-links {
  display: flex;
  gap: var(--space-6);
}

@media (min-width: 640px) {
  .footer-content {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}


/* ==========================================================================
   12. Cookie Banner
   ========================================================================== */

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--space-4);
  background-color: var(--color-white);
  border-top: 1px solid var(--color-gray-lighter);
  box-shadow: var(--shadow-lg);
}

.cookie-banner[hidden] {
  display: none;
}

.cookie-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  align-items: center;
  max-width: var(--max-width);
  margin: 0 auto;
  text-align: center;
}

.cookie-content p {
  font-size: var(--font-size-sm);
  color: var(--color-gray);
}

.cookie-buttons {
  display: flex;
  gap: var(--space-3);
}

@media (min-width: 640px) {
  .cookie-content {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

/* ==========================================================================
   13. Scan Page
   ========================================================================== */

.scan-section {
  padding: var(--space-16) 0;
  text-align: center;
}

.scan-input-wrapper {
  max-width: 400px;
  margin: var(--space-8) auto 0;
}

.scan-input {
  width: 100%;
  padding: var(--space-4) var(--space-5);
  font-size: var(--font-size-lg);
  text-align: center;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 2px solid var(--color-gray-lighter);
  border-radius: var(--border-radius);
  transition: border-color var(--transition-fast);
  /* Minimum touch target */
  min-height: 56px;
}

.scan-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.1);
}

.scan-instructions {
  margin-top: var(--space-4);
  font-size: var(--font-size-sm);
  color: var(--color-gray);
}

/* ==========================================================================
   14. Privacy Page & Content Pages
   ========================================================================== */

.content-page {
  padding: var(--space-12) 0;
}

.content-page h1 {
  margin-bottom: var(--space-8);
}

.content-page h2 {
  margin-top: var(--space-8);
  margin-bottom: var(--space-4);
}

.content-page h3 {
  margin-top: var(--space-6);
  margin-bottom: var(--space-3);
}

.content-page p {
  margin-bottom: var(--space-4);
  color: var(--color-gray);
}

.content-page ul {
  margin-bottom: var(--space-4);
  padding-left: var(--space-6);
  list-style: disc;
}

.content-page li {
  margin-bottom: var(--space-2);
  color: var(--color-gray);
}

/* Content Article Styles */
.content {
  max-width: 800px;
  margin: 0 auto;
}

.content h1 {
  margin-bottom: var(--space-4);
}

.content h2 {
  margin-top: var(--space-10);
  margin-bottom: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-gray-lighter);
}

.content h3 {
  margin-top: var(--space-6);
  margin-bottom: var(--space-3);
  font-size: var(--font-size-lg);
}

.content p {
  margin-bottom: var(--space-4);
  color: var(--color-dark-light);
}

.content .last-updated {
  font-size: var(--font-size-sm);
  color: var(--color-gray);
  margin-bottom: var(--space-8);
}

.content-list {
  margin-bottom: var(--space-4);
  padding-left: var(--space-6);
  list-style: disc;
}

.content-list li {
  margin-bottom: var(--space-2);
  color: var(--color-dark-light);
}

.content-list li strong {
  color: var(--color-dark);
}

.content a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

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

/* ==========================================================================
   15. Utility Classes
   ========================================================================== */

.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;
}

.hidden {
  display: none !important;
}

.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

/* ==========================================================================
   16. Dark Mode Support (Optional)
   ========================================================================== */

@media (prefers-color-scheme: dark) {
  :root {
    --color-dark: #f8fafc;
    --color-dark-light: #e2e8f0;
    --color-gray: #94a3b8;
    --color-gray-light: #64748b;
    --color-gray-lighter: #334155;
    --color-white: #0f172a;
    --color-bg: #1e293b;
  }

  .header {
    background-color: rgba(15, 23, 42, 0.95);
    border-bottom-color: var(--color-gray-lighter);
  }

  .cookie-banner {
    background-color: #1e293b;
    border-top-color: var(--color-gray-lighter);
  }
}