/* The Gradient - Modern Organic Flow Design System */

/* ============================================
   CSS Custom Properties - Theming System
   ============================================ */

:root {
  /* Core Colors */
  --color-dark: #1f2937;
  --color-white: #ffffff;
  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;

  /* Gradient Colors */
  --warm-start: #f59e0b;
  --warm-end: #ec4899;
  --cool-start: #06b6d4;
  --cool-end: #8b5cf6;

  /* Gradients */
  --gradient-warm: linear-gradient(135deg, var(--warm-start), var(--warm-end));
  --gradient-cool: linear-gradient(135deg, var(--cool-start), var(--cool-end));
  --gradient-warm-subtle: linear-gradient(135deg, rgba(245, 158, 11, 0.1), rgba(236, 72, 153, 0.1));
  --gradient-mesh: radial-gradient(at 20% 30%, rgba(245, 158, 11, 0.08) 0px, transparent 50%),
                   radial-gradient(at 80% 70%, rgba(236, 72, 153, 0.08) 0px, transparent 50%);

  /* Typography */
  --font-headline: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Nunito Sans', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Spacing Scale */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-pill: 999px;

  /* Shadows */
  --shadow-soft: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
  --shadow-medium: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
  --shadow-large: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-gradient: 0 8px 16px -4px rgba(245, 158, 11, 0.2), 0 4px 8px -2px rgba(236, 72, 153, 0.15);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================
   Reset & Base Styles
   ============================================ */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--color-dark);
  background: var(--color-white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-headline);
  line-height: 1.2;
  font-weight: 700;
  margin-bottom: var(--space-md);
}

h1 { font-size: clamp(2.5rem, 5vw, 3.5rem); }
h2 { font-size: clamp(2rem, 4vw, 2.75rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: 1.25rem; }

p {
  margin-bottom: var(--space-md);
  max-width: 65ch;
}

a {
  color: inherit;
  text-decoration: none;
  transition: all var(--transition-base);
}

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

/* ============================================
   Utility Classes - Gradients
   ============================================ */

.bg-gradient-warm { background: var(--gradient-warm); }
.bg-gradient-cool { background: var(--gradient-cool); }
.bg-gradient-warm-subtle { background: var(--gradient-warm-subtle); }
.bg-gradient-mesh { background: var(--gradient-mesh); }

.text-gradient-warm {
  background: var(--gradient-warm);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gradient-cool {
  background: var(--gradient-cool);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.border-gradient-warm {
  border: 2px solid transparent;
  background: linear-gradient(white, white) padding-box,
              var(--gradient-warm) border-box;
}

.border-gradient-cool {
  border: 2px solid transparent;
  background: linear-gradient(white, white) padding-box,
              var(--gradient-cool) border-box;
}

/* ============================================
   Layout Components
   ============================================ */

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.section {
  padding: var(--space-3xl) 0;
}

.section-sm {
  padding: var(--space-2xl) 0;
}

/* ============================================
   Header & Navigation
   ============================================ */

.header {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-soft);
}

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

.nav-logo {
  font-family: var(--font-headline);
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--gradient-warm);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.nav-menu a {
  font-weight: 500;
  color: var(--color-gray-700);
  position: relative;
}

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

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-warm);
  transition: width var(--transition-base);
}

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

.nav-menu a.active::after {
  width: 100%;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--color-dark);
}

@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: block;
  }

  .nav-menu {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: white;
    flex-direction: column;
    padding: var(--space-lg);
    box-shadow: var(--shadow-medium);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-base);
  }

  .nav-menu.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
  background: var(--gradient-mesh);
  padding: var(--space-3xl) 0;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

.hero-text h1 {
  margin-bottom: var(--space-md);
  line-height: 1.1;
}

.hero-text p {
  font-size: 1.25rem;
  color: var(--color-gray-700);
  margin-bottom: var(--space-lg);
}

.hero-image {
  position: relative;
}

.hero-image img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-large);
  width: 100%;
}

@media (max-width: 768px) {
  .hero-content {
    grid-template-columns: 1fr;
  }

  .hero-text {
    order: 2;
  }

  .hero-image {
    order: 1;
  }
}

/* ============================================
   Buttons
   ============================================ */

.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 1rem;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-base);
  border: none;
  font-family: var(--font-body);
}

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

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 20px -6px rgba(245, 158, 11, 0.3), 0 6px 10px -3px rgba(236, 72, 153, 0.2);
}

.btn-outline {
  background: white;
  border: 2px solid transparent;
  background: linear-gradient(white, white) padding-box,
              var(--gradient-warm) border-box;
  color: var(--color-dark);
}

.btn-outline:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-medium);
}

.btn-group {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

/* ============================================
   Cards
   ============================================ */

.card {
  background: white;
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  box-shadow: var(--shadow-soft);
  transition: all var(--transition-base);
}

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

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
}

.card h3 {
  margin-bottom: var(--space-sm);
}

.card p {
  color: var(--color-gray-600);
  font-size: 0.95rem;
}

/* Gradient-bordered card */
.card-gradient {
  border: 2px solid transparent;
  background: linear-gradient(white, white) padding-box,
              var(--gradient-warm) border-box;
}

/* ============================================
   Pills & Tags
   ============================================ */

.pill {
  display: inline-block;
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-pill);
  font-size: 0.875rem;
  font-weight: 600;
  transition: all var(--transition-fast);
}

.pill-gradient {
  background: var(--gradient-warm);
  color: white;
}

.pill-outline {
  border: 2px solid transparent;
  background: linear-gradient(white, white) padding-box,
              var(--gradient-warm) border-box;
  color: var(--color-dark);
}

.pill-gradient:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-gradient);
}

.pill-group {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-bottom: var(--space-lg);
}

/* ============================================
   Focus Areas Section
   ============================================ */

.focus-areas {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

.focus-card {
  background: white;
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  border: 2px solid transparent;
  background: linear-gradient(white, white) padding-box,
              var(--gradient-warm) border-box;
  transition: all var(--transition-base);
}

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

.focus-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-md);
}

/* ============================================
   About Page Styles
   ============================================ */

.about-hero {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-2xl);
  align-items: start;
  margin-bottom: var(--space-3xl);
}

.about-photo {
  position: sticky;
  top: 100px;
}

.about-photo img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-large);
  width: 100%;
}

.about-content h2 {
  margin-top: var(--space-xl);
}

.credentials {
  background: var(--gradient-warm-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  margin: var(--space-xl) 0;
}

.credentials ul {
  list-style: none;
  display: grid;
  gap: var(--space-sm);
}

.credentials li {
  padding-left: var(--space-md);
  position: relative;
}

.credentials li::before {
  content: '✓';
  position: absolute;
  left: 0;
  background: var(--gradient-warm);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: bold;
}

.approach-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
  margin: var(--space-xl) 0;
}

.blockquote {
  border-left: 4px solid transparent;
  background: linear-gradient(white, white) padding-box,
              var(--gradient-warm) border-box;
  border-image-slice: 1;
  border-width: 0 0 0 4px;
  padding: var(--space-lg);
  margin: var(--space-xl) 0;
  font-size: 1.25rem;
  font-style: italic;
  color: var(--color-gray-700);
  background: var(--gradient-warm-subtle);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

@media (max-width: 768px) {
  .about-hero {
    grid-template-columns: 1fr;
  }

  .about-photo {
    position: static;
  }
}

/* ============================================
   Article Page Styles
   ============================================ */

.article-header {
  max-width: 800px;
  margin: 0 auto var(--space-3xl);
  text-align: center;
}

.article-meta {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  align-items: center;
  color: var(--color-gray-600);
  margin-bottom: var(--space-lg);
}

.author-card {
  display: flex;
  gap: var(--space-md);
  align-items: center;
  background: var(--gradient-warm-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  margin: var(--space-xl) 0;
}

.author-photo {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  border: 3px solid white;
  box-shadow: var(--shadow-medium);
}

.author-info h4 {
  margin-bottom: 0.25rem;
}

.author-info p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--color-gray-600);
}

.article-content {
  max-width: 800px;
  margin: 0 auto;
  font-size: 1.125rem;
  line-height: 1.8;
}

.article-content h2,
.article-content h3 {
  margin-top: var(--space-2xl);
}

.article-content ul,
.article-content ol {
  margin-bottom: var(--space-lg);
  padding-left: var(--space-xl);
}

.article-content li {
  margin-bottom: var(--space-sm);
}

.article-content blockquote {
  border-left: 4px solid transparent;
  border-image: var(--gradient-warm) 1;
  padding-left: var(--space-lg);
  margin: var(--space-xl) 0;
  font-size: 1.25rem;
  font-style: italic;
  color: var(--color-gray-700);
}

.progress-bar {
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--color-gray-100);
  z-index: 99;
}

.progress-fill {
  height: 100%;
  background: var(--gradient-warm);
  width: 0;
  transition: width 100ms ease-out;
}

.related-articles {
  margin-top: var(--space-3xl);
  padding-top: var(--space-3xl);
  border-top: 2px solid var(--color-gray-100);
}

.related-scroll {
  display: flex;
  gap: var(--space-lg);
  overflow-x: auto;
  padding-bottom: var(--space-md);
  scroll-snap-type: x mandatory;
}

.related-card {
  flex: 0 0 300px;
  scroll-snap-align: start;
}

/* ============================================
   Resources Page
   ============================================ */

.filter-pills {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-bottom: var(--space-xl);
  justify-content: center;
}

.filter-pill {
  padding: 0.625rem 1.5rem;
  border-radius: var(--radius-pill);
  border: 2px solid var(--color-gray-200);
  background: white;
  cursor: pointer;
  font-weight: 600;
  transition: all var(--transition-base);
}

.filter-pill:hover {
  border-color: var(--warm-start);
}

.filter-pill.active {
  background: var(--gradient-warm);
  color: white;
  border-color: transparent;
  box-shadow: var(--shadow-gradient);
}

.resource-card {
  background: white;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  transition: all var(--transition-base);
}

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

.resource-tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--gradient-warm);
  color: white;
  margin-bottom: var(--space-sm);
}

.resource-title {
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
}

.resource-description {
  color: var(--color-gray-600);
  font-size: 0.95rem;
  margin-bottom: var(--space-md);
}

.resource-link {
  color: var(--warm-start);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

/* ============================================
   Newsletter Page
   ============================================ */

.newsletter-hero {
  background: var(--gradient-mesh);
  padding: var(--space-3xl) 0;
  text-align: center;
}

.newsletter-form {
  max-width: 500px;
  margin: var(--space-xl) auto 0;
}

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

.form-input {
  width: 100%;
  padding: 1rem 1.5rem;
  border-radius: var(--radius-pill);
  border: 2px solid var(--color-gray-200);
  font-size: 1rem;
  font-family: var(--font-body);
  transition: all var(--transition-base);
}

.form-input:focus {
  outline: none;
  border: 2px solid transparent;
  background: linear-gradient(white, white) padding-box,
              var(--gradient-warm) border-box;
}

.benefits-list {
  list-style: none;
  max-width: 600px;
  margin: var(--space-2xl) auto;
  text-align: left;
}

.benefits-list li {
  padding: var(--space-md);
  margin-bottom: var(--space-sm);
  position: relative;
  padding-left: 3rem;
}

.benefits-list li::before {
  content: '✓';
  position: absolute;
  left: var(--space-md);
  font-size: 1.5rem;
  background: var(--gradient-warm);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: bold;
}

.social-proof {
  text-align: center;
  margin-top: var(--space-xl);
  padding: var(--space-lg);
  background: var(--gradient-warm-subtle);
  border-radius: var(--radius-md);
  font-size: 1.125rem;
  font-weight: 600;
}

/* ============================================
   Footer
   ============================================ */

.footer {
  background: var(--color-dark);
  color: white;
  padding: var(--space-2xl) 0 var(--space-lg);
  margin-top: var(--space-3xl);
}

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

.footer h3 {
  background: var(--gradient-warm);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-md);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--space-sm);
}

.footer-links a {
  color: var(--color-gray-200);
  transition: color var(--transition-base);
}

.footer-links a:hover {
  color: white;
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--color-gray-200);
}

/* ============================================
   Video Embed
   ============================================ */

.video-container {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-large);
  margin: var(--space-xl) 0;
}

.video-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

/* ============================================
   Animations & Transitions
   ============================================ */

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp var(--transition-slow) ease-out;
}

/* ============================================
   Scrollbar Styling
   ============================================ */

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--color-gray-100);
}

::-webkit-scrollbar-thumb {
  background: var(--gradient-warm);
  border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--gradient-cool);
}