/* ================================
   PERSONAL WEBSITE - DESIGN SYSTEM
   ================================ */

/* === IMPORTS === */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Space+Grotesk:wght@500;600;700&display=swap');

/* === CSS VARIABLES === */
:root {
  /* Color Palette - "Wynn Backyards" Scene Inspired */
  --color-primary: #586B55;
  /* Deep Moss Green */
  --color-primary-dark: #425240;
  /* Darker Moss */
  --color-secondary: #789094;
  /* Slate Blue */
  --color-accent: #789094;
  /* Slate Blue */
  --color-highlight: #C2C981;
  /* Spring Grass */

  --color-bg-light: #E6EAE3;
  /* Pale Grey-Green Background */
  --color-bg-card: #F2F5F1;
  /* Very Light Mist */
  --color-bg-card-hover: #FFFFFF;
  /* Pure white on hover */

  --color-text-primary: #2A332C;
  /* Dark Forest Charcoal */
  --color-text-secondary: #4A5750;
  /* Muted Green-Grey */
  --color-text-muted: #7A8580;
  /* Light Slate Grey */

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-heading: 'Space Grotesk', var(--font-primary);

  --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: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: 3.75rem;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 0.75rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  --spacing-4xl: 6rem;

  /* Border Radius */
  --radius-sm: 0.5rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
  --radius-xl: 2rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(42, 51, 44, 0.05);
  --shadow-md: 0 4px 16px rgba(42, 51, 44, 0.08);
  --shadow-lg: 0 8px 32px rgba(42, 51, 44, 0.12);

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 250ms ease-in-out;
  --transition-slow: 400ms ease-in-out;

  /* Layout */
  --nav-height: 80px;
  --container-max-width: 1200px;
  --content-max-width: 800px;
}

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

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

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

/* === BACKGROUND PAINTING === */
body::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: calc(40vh + 80px);
  /* Reduced height to "see a little less" of the header image */
  background-image: url('header.png');
  background-size: cover;
  background-position: center 60%;
  /* Shifted down significantly (2x previous step) to "scroll" into the picture */
  /* Gradient overlay to fade into the background color at the bottom */
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 1) 80%, rgba(0, 0, 0, 0) 100%);
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 1) 80%, rgba(0, 0, 0, 0) 100%);
  z-index: -1;
  opacity: 0.9;
}

/* Overlay to ensure text readability on top of image */
body::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: calc(40vh + 80px);
  background: rgba(230, 234, 227, 0.2);
  /* Reduced opacity to show more image color */
  z-index: -1;
  pointer-events: none;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 1) 80%, rgba(0, 0, 0, 0) 100%);
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 1) 80%, rgba(0, 0, 0, 0) 100%);
}

::selection {
  background: var(--color-secondary);
  color: white;
}

/* === TYPOGRAPHY === */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
  color: var(--color-primary);
}

h1 {
  font-size: var(--font-size-5xl);
  color: var(--color-primary-dark);
  /* Darker for better contrast on image */
  margin-bottom: var(--spacing-lg);
  /* Stronger text shadow for readability over clearer image */
  text-shadow: 0 2px 8px rgba(230, 234, 227, 0.8), 0 0 20px rgba(230, 234, 227, 0.5);
}

h2 {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--spacing-xl);
  color: var(--color-primary);
}

h3 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-md);
  color: var(--color-secondary);
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--color-text-secondary);
}

a {
  color: var(--color-secondary);
  text-decoration: none;
  transition: color var(--transition-base);
  font-weight: 600;
}

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

/* === NAVIGATION === */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: rgba(230, 234, 227, 0.85);
  /* Slightly transparent */
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(120, 144, 148, 0.15);
  z-index: 1000;
  transition: all var(--transition-base);
}

.nav.scrolled {
  box-shadow: var(--shadow-sm);
  background: rgba(230, 234, 227, 0.98);
}

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

.nav-logo {
  font-family: var(--font-heading);
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-primary);
  cursor: pointer;
  transition: transform var(--transition-base);
}

.nav-logo:hover {
  transform: scale(1.05);
}

.nav-menu {
  display: flex;
  gap: var(--spacing-xl);
  list-style: none;
}

.nav-link {
  color: var(--color-text-secondary);
  font-weight: 500;
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  position: relative;
  padding: var(--spacing-xs) 0;
  transition: color var(--transition-base);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-secondary);
  transition: width var(--transition-base);
}

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

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
}

.nav-toggle span {
  width: 25px;
  height: 2px;
  background: var(--color-text-primary);
  transition: all var(--transition-base);
}

/* === LAYOUT === */
.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-xl);
}

.content {
  max-width: var(--content-max-width);
  margin: 0 auto;
}

section {
  min-height: 100vh;
  padding: calc(var(--nav-height) + var(--spacing-4xl)) var(--spacing-xl) var(--spacing-4xl);
  position: relative;
}

/* === HERO SECTION === */
.hero {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  text-align: center;
  position: relative;
  min-height: calc(50vh + 80px);
  /* Match previous visual height for content */
  padding-top: 45vh;
  /* Restore content alignment to the bottom */
  padding-bottom: 4rem;
  /* top of text should now start near the bottom of the bg image */
  /* Removed local background to let body::before shine through */
}

/* Removed previous hero overlay */
.hero::before {
  display: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  animation: fadeInUp 1s ease-out;
}

.hero-tagline {
  font-size: var(--font-size-lg);
  color: var(--color-secondary);
  font-weight: 500;
  margin-bottom: var(--spacing-md);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.hero h1 {
  font-size: clamp(var(--font-size-4xl), 8vw, var(--font-size-6xl));
  margin-bottom: var(--spacing-lg);
  color: #2d4a2f;
  /* Medium-dark forest green to match header image palette */
  animation: fadeInUp 1s ease-out 0.2s both;
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  color: var(--color-text-primary);
  /* Darker for readability over image */
  margin-bottom: var(--spacing-2xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  animation: fadeInUp 1s ease-out 0.4s both;
  font-weight: 500;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 1s ease-out 0.6s both;
}

/* === BUTTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: var(--font-size-base);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  cursor: pointer;
  border: none;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-sm);
}

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

.btn-secondary {
  background: rgba(255, 255, 255, 0.7);
  /* More opaque for contrast over BG */
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
  backdrop-filter: blur(5px);
}

.btn-secondary:hover {
  background: #fff;
  transform: translateY(-2px);
}

/* === SECTION HEADER === */
.section-header {
  text-align: center;
  margin-bottom: var(--spacing-4xl);
}

.section-label {
  font-size: var(--font-size-sm);
  color: var(--color-secondary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--spacing-md);
}

.section-title {
  font-size: clamp(var(--font-size-3xl), 5vw, var(--font-size-4xl));
  margin-bottom: var(--spacing-lg);
}

.section-description {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  max-width: 700px;
  margin: 0 auto;
}

/* === CARDS === */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-3xl);
}

.card {
  background: var(--color-bg-card);
  border: 1px solid rgba(120, 144, 148, 0.15);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.card:hover {
  background: var(--color-bg-card-hover);
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: rgba(120, 144, 148, 0.3);
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--color-secondary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.card:hover::before {
  transform: scaleX(1);
}

.card-icon {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-md);
  background: rgba(120, 144, 148, 0.15);
  color: var(--color-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-lg);
}

.card-title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-md);
  color: var(--color-primary);
}

.card-description {
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.card-meta {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(120, 144, 148, 0.1);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* === WRITING CARDS === */
.writing-card {
  background: var(--color-bg-card);
  border: 1px solid rgba(120, 144, 148, 0.15);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-sm);
}

.writing-card:hover {
  background: var(--color-bg-card-hover);
  transform: translateX(10px);
  border-color: rgba(120, 144, 148, 0.3);
  box-shadow: var(--shadow-md);
}

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

.writing-card-date {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  white-space: nowrap;
  margin-left: var(--spacing-md);
}

.writing-card-title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-sm);
  color: var(--color-primary);
}

.writing-card-excerpt {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
  line-height: 1.7;
}

.writing-card-tags {
  display: flex;
  gap: var(--spacing-xs);
  flex-wrap: wrap;
}

.tag {
  padding: var(--spacing-xs) var(--spacing-md);
  background: rgba(194, 201, 129, 0.2);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  color: var(--color-primary-dark);
  font-weight: 600;
}

/* === ANIMATIONS === */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

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

.fade-in-up {
  animation: fadeInUp 0.8s ease-out both;
}

/* === ABOUT SECTION (PROFILE) === */
.about-layout {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
  align-items: center;
  /* Centered as requested */
}

.about-profile-img {
  width: 100%;
  max-width: 300px;
  height: 400px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  flex-shrink: 0;
}

.about-text-card {
  width: 100%;
}

/* === ANIMATIONS === */

.stagger-2 {
  animation-delay: 0.2s;
}

.stagger-3 {
  animation-delay: 0.3s;
}

.stagger-4 {
  animation-delay: 0.4s;
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
  :root {
    --nav-height: 70px;
    --font-size-5xl: 2.5rem;
    --font-size-4xl: 2rem;
    --spacing-4xl: 3rem;
  }

  .nav-menu {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--color-bg-light);
    border-bottom: 1px solid rgba(120, 144, 148, 0.2);
    flex-direction: column;
    padding: var(--spacing-xl);
    gap: var(--spacing-md);
    transform: translateY(-100%);
    opacity: 0;
    transition: all var(--transition-base);
    pointer-events: none;
    z-index: 900;
  }

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

  .nav-toggle {
    display: flex;
  }

  .nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
  }

  .nav-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
  }

  section {
    padding: calc(var(--nav-height) + var(--spacing-2xl)) var(--spacing-md) var(--spacing-2xl);
  }

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

  .hero-cta {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .nav-container {
    padding: 0 var(--spacing-md);
  }

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

  .writing-card-header {
    flex-direction: column;
  }

  .writing-card-date {
    margin-left: 0;
    margin-top: var(--spacing-xs);
  }

  .writing-card-date {
    margin-left: 0;
    margin-top: var(--spacing-xs);
  }

  .about-layout {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .about-profile-img {
    margin-bottom: var(--spacing-lg);
    width: 200px;
    height: 200px;
    /* Square for mobile looks better usually */
  }

  .about-text-card {
    width: 100%;
  }
}

/* === UTILITY CLASSES === */
.text-gradient {
  color: var(--color-primary);
}

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

.mt-sm {
  margin-top: var(--spacing-sm);
}

.mt-md {
  margin-top: var(--spacing-md);
}

.mt-lg {
  margin-top: var(--spacing-lg);
}

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

.mb-sm {
  margin-bottom: var(--spacing-sm);
}

.mb-md {
  margin-bottom: var(--spacing-md);
}

.mb-lg {
  margin-bottom: var(--spacing-lg);
}

.mb-xl {
  margin-bottom: var(--spacing-xl);
}