/* ================================
   APPLE + ADELE SMITH DESIGN SYSTEM
   ================================ */

/* ============ ROOT VARIABLES ============ */
:root {
  /* Colors - Adele Smith Inspired */
  --primary-cream: #F4E4C1;
  --primary-yellow: #FFF8E7;
  --dark-text: #1a1a1a;
  --gray-text: #666666;
  --light-gray: #f9f9f9;
  --accent-purple: #8B5CF6;
  --accent-pink: #EC4899;
  
  /* Typography - Apple System Font */
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  --font-mono: 'Monaco', 'Menlo', 'Courier New', monospace;
  
  /* Sizing */
  --spacing-xs: 8px;
  --spacing-sm: 16px;
  --spacing-md: 30px;
  --spacing-lg: 60px;
  --spacing-xl: 120px;
  
  /* Typography Scale */
  --text-xs: 12px;
  --text-sm: 14px;
  --text-base: 16px;
  --text-lg: 18px;
  --text-xl: 24px;
  --text-2xl: 32px;
  --text-3xl: 48px;
  --text-4xl: 64px;
  
  /* Shadows - Apple Style (subtle) */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 30px rgba(0, 0, 0, 0.12);
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 20px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background-color: white;
  color: var(--dark-text);
  line-height: 1.6;
  font-size: var(--text-base);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============ TYPOGRAPHY ============ */
h1 {
  font-size: var(--text-4xl);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: var(--spacing-lg);
}

h2 {
  font-size: var(--text-3xl);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin-bottom: var(--spacing-lg);
}

h3 {
  font-size: var(--text-xl);
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: var(--spacing-md);
}

p {
  font-size: var(--text-lg);
  color: var(--gray-text);
  line-height: 1.7;
  margin-bottom: var(--spacing-md);
}

a {
  color: var(--dark-text);
  text-decoration: none;
  transition: all 0.3s ease;
}

/* ============ CONTAINER ============ */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* ============ SECTIONS ============ */
section {
  padding: var(--spacing-xl) 0;
}

section.light-bg {
  background-color: var(--primary-yellow);
}

section.cream-bg {
  background-color: var(--primary-cream);
}

/* ============ NAVIGATION ============ */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: white;
  border-bottom: 1px solid #f0f0f0;
  padding: var(--spacing-md) 0;
  backdrop-filter: blur(10px);
  background: rgba(255, 255, 255, 0.95);
}

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

.logo {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--dark-text);
  letter-spacing: -0.01em;
}

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

.nav-links a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--gray-text);
  transition: color 0.2s ease;
  position: relative;
}

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

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-purple);
  transition: width 0.3s ease;
}

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

/* ============ HERO SECTION ============ */
.hero {
  padding: var(--spacing-xl) 0;
  background: white;
  display: flex;
  align-items: center;
  min-height: 100vh;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--primary-yellow) 0%, transparent 70%);
  border-radius: 50%;
  z-index: 0;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content h1 {
  margin-bottom: var(--spacing-md);
  max-width: 500px;
}

.hero-content p {
  font-size: var(--text-lg);
  max-width: 500px;
  margin-bottom: var(--spacing-lg);
}

.hero-image {
  position: relative;
  height: 500px;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

/* ============ BUTTONS ============ */
.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  transition: all 0.3s ease;
  cursor: pointer;
  border: 2px solid transparent;
  text-decoration: none;
  white-space: nowrap;
}

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

.btn-primary:hover {
  background: transparent;
  color: var(--dark-text);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: transparent;
  color: var(--dark-text);
  border-color: var(--dark-text);
}

.btn-secondary:hover {
  background: var(--dark-text);
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-accent {
  background: var(--accent-purple);
  color: white;
  border-color: var(--accent-purple);
}

.btn-accent:hover {
  background: transparent;
  color: var(--accent-purple);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* ============ PROJECT CARDS ============ */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.project-card {
  background: white;
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all 0.3s ease;
  border: 1px solid #f0f0f0;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.project-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-cream);
}

.project-card-image {
  width: 100%;
  height: 250px;
  background: var(--primary-yellow);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.project-card-image img {
  max-width: 100%;
  max-height: 100%;
  object-fit: cover;
}

.project-card-content {
  padding: var(--spacing-lg);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.project-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.project-card h3 {
  margin: 0;
  font-size: var(--text-xl);
}

.project-status {
  display: inline-block;
  padding: 4px 12px;
  background: var(--primary-cream);
  color: var(--dark-text);
  border-radius: 20px;
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.project-status.beta {
  background: #FEF3C7;
}

.project-status.archive {
  background: #E5E7EB;
}

.project-description {
  color: var(--gray-text);
  font-size: var(--text-base);
  margin-bottom: var(--spacing-md);
  line-height: 1.6;
}

.tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
  margin-top: auto;
}

.tech-tag {
  display: inline-block;
  padding: 6px 12px;
  background: var(--light-gray);
  color: var(--gray-text);
  border-radius: var(--radius-md);
  font-size: var(--text-xs);
  font-weight: 500;
}

.project-card-footer {
  display: flex;
  gap: var(--spacing-sm);
}

.project-card-footer .btn {
  flex: 1;
  text-align: center;
}

/* ============ ABOUT SECTION ============ */
.about {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
}

.about-image {
  position: relative;
}

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

.about-content h2 {
  margin-bottom: var(--spacing-lg);
}

.about-content p {
  margin-bottom: var(--spacing-md);
}

.skills-section {
  margin-top: var(--spacing-xl);
}

.skills-section h3 {
  margin-bottom: var(--spacing-lg);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

.skill-item {
  padding: var(--spacing-md);
  background: var(--primary-yellow);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--accent-purple);
}

.skill-item h4 {
  font-size: var(--text-base);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  color: var(--dark-text);
}

.skill-item p {
  font-size: var(--text-sm);
  color: var(--gray-text);
  margin: 0;
}

/* ============ PROJECT DETAIL PAGE ============ */
.project-hero {
  padding: var(--spacing-xl) 0;
  margin-bottom: var(--spacing-xl);
}

.project-hero h1 {
  margin-bottom: var(--spacing-md);
}

.project-meta {
  display: flex;
  gap: var(--spacing-lg);
  align-items: center;
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
}

.project-meta-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.project-meta-label {
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  color: var(--gray-text);
  letter-spacing: 0.5px;
}

.project-meta-value {
  font-size: var(--text-base);
  color: var(--dark-text);
}

.project-section {
  margin-bottom: var(--spacing-xl);
  padding: var(--spacing-lg);
  background: var(--primary-yellow);
  border-radius: var(--radius-lg);
}

.project-section h3 {
  margin-bottom: var(--spacing-md);
}

.feature-list {
  list-style: none;
  margin-top: var(--spacing-md);
}

.feature-list li {
  padding: var(--spacing-sm) 0;
  padding-left: var(--spacing-lg);
  position: relative;
  color: var(--gray-text);
  line-height: 1.8;
}

.feature-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent-purple);
  font-weight: bold;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.metric-card {
  background: white;
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  text-align: center;
  border: 1px solid #f0f0f0;
}

.metric-card .number {
  font-size: var(--text-4xl);
  font-weight: 700;
  color: var(--accent-purple);
  margin-bottom: var(--spacing-sm);
}

.metric-card .label {
  font-size: var(--text-sm);
  color: var(--gray-text);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.cta-section {
  background: var(--dark-text);
  color: white;
  padding: var(--spacing-xl);
  border-radius: var(--radius-xl);
  text-align: center;
  margin: var(--spacing-xl) 0;
}

.cta-section h3 {
  color: white;
  margin-bottom: var(--spacing-md);
}

.cta-section p {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--spacing-lg);
}

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

.cta-section .btn-primary {
  background: var(--accent-purple);
  border-color: var(--accent-purple);
}

.cta-section .btn-primary:hover {
  background: transparent;
  color: var(--accent-purple);
}

/* ============ FOOTER ============ */
footer {
  background: var(--dark-text);
  color: white;
  padding: var(--spacing-xl) 0;
  margin-top: var(--spacing-xl);
}

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

footer h4 {
  color: white;
  font-size: var(--text-base);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

footer a {
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--text-sm);
  transition: color 0.2s ease;
  display: block;
  margin-bottom: var(--spacing-sm);
}

footer a:hover {
  color: white;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-lg);
  text-align: center;
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.6);
}

/* ============ RESPONSIVE ============ */
@media (max-width: 768px) {
  :root {
    --text-4xl: 36px;
    --text-3xl: 28px;
    --spacing-xl: 60px;
  }

  .hero .container,
  .about {
    grid-template-columns: 1fr;
  }

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

  .nav-links {
    gap: var(--spacing-md);
  }

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

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

  .project-meta {
    flex-direction: column;
    align-items: flex-start;
  }

  .cta-buttons {
    flex-direction: column;
  }

  .cta-buttons .btn {
    width: 100%;
  }
}

@media (max-width: 480px) {
  :root {
    --text-4xl: 28px;
    --text-3xl: 24px;
    --spacing-xl: 40px;
    --spacing-lg: 30px;
  }

  section {
    padding: var(--spacing-lg) 0;
  }

  .hero {
    min-height: auto;
  }

  .nav-links {
    display: none;
  }

  .hero-image {
    height: 300px;
  }

  .project-section {
    padding: var(--spacing-md);
  }

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