/* ===========================================
   Amanda Nowicki Portfolio - Main Stylesheet
   =========================================== */

/* Google Fonts - Libre Bodoni for academic aesthetic */
@import url('https://fonts.googleapis.com/css2?family=Libre+Bodoni:ital,wght@0,400;0,500;0,600;0,700;1,400&display=swap');

/* ===========================================
   CSS Custom Properties
   =========================================== */
:root {
  /* Colors - Warm Autumn Palette */
  --color-primary: #AA7180;
  --color-primary-dark: #8A5A68;
  --color-primary-light: #C48B99;
  
  --color-charcoal: #1F2937;
  --color-charcoal-light: #374151;
  --color-off-white: #F9FAFB;
  --color-cream: #FDF8F9;
  
  /* Glass effect colors */
  --glass-bg: rgba(255, 255, 255, 0.12);
  --glass-border: rgba(255, 255, 255, 0.2);
  --glass-shadow: rgba(0, 0, 0, 0.1);
  
  /* Typography */
  --font-family: 'Libre Bodoni', 'Bodoni MT', Georgia, serif;
  --font-weight-light: 300;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 400ms ease;
  
  /* Border radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;
  --radius-full: 9999px;
}

/* ===========================================
   Keyframe Animations
   =========================================== */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-6px);
  }
}

@keyframes shimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-weight: var(--font-weight-regular);
  line-height: 1.6;
  color: var(--color-charcoal);
  background-color: var(--color-off-white);
  min-height: 100vh;
}

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

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

ul {
  list-style: none;
}

/* ===========================================
   Typography
   =========================================== */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-semibold);
  line-height: 1.2;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: var(--font-weight-bold);
}

h2 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
}

h3 {
  font-size: clamp(1.25rem, 2vw, 1.75rem);
}

p {
  font-size: clamp(1rem, 1.5vw, 1.125rem);
}

/* ===========================================
   Navigation Bar - Glassmorphism
   =========================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--spacing-md) var(--spacing-xl);
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: 0 4px 30px var(--glass-shadow);
  animation: fadeInDown 0.6s ease-out;
}

.navbar-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.navbar-brand {
  font-size: 1.25rem;
  font-weight: var(--font-weight-semibold);
  color: var(--color-off-white);
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
  animation: fadeIn 0.8s ease-out 0.2s both;
  transition: transform var(--transition-normal), color var(--transition-normal);
}

.navbar-brand:hover {
  transform: scale(1.02);
}

.navbar-nav {
  display: flex;
  gap: var(--spacing-lg);
}

.navbar-nav li {
  animation: fadeInDown 0.5s ease-out both;
}

.navbar-nav li:nth-child(1) { animation-delay: 0.1s; }
.navbar-nav li:nth-child(2) { animation-delay: 0.15s; }
.navbar-nav li:nth-child(3) { animation-delay: 0.2s; }
.navbar-nav li:nth-child(4) { animation-delay: 0.25s; }
.navbar-nav li:nth-child(5) { animation-delay: 0.3s; }

.nav-link {
  font-size: 1rem;
  font-weight: var(--font-weight-medium);
  color: var(--color-off-white);
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-sm);
  transition: all var(--transition-normal);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--color-primary-light);
  transition: width var(--transition-normal);
}

.nav-link:hover {
  color: var(--color-primary-light);
  transform: translateY(-1px);
}

.nav-link:hover::after {
  width: 80%;
}

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

.nav-link.active::after {
  width: 80%;
}

/* Mobile menu toggle */
.navbar-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
}

.navbar-toggle span {
  display: block;
  width: 25px;
  height: 2px;
  background: var(--color-off-white);
  transition: all var(--transition-normal);
}

.navbar-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

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

.navbar-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ===========================================
   Hero Section (Home Page)
   =========================================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: var(--spacing-3xl) var(--spacing-xl);
  background-size: cover;
  background-position: center left;
  background-repeat: no-repeat;
  background-attachment: scroll;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to right,
    transparent 0%,
    transparent 40%,
    rgba(0, 0, 0, 0.2) 70%,
    rgba(0, 0, 0, 0.4) 100%
  );
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 550px;
  padding: var(--spacing-2xl);
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-border);
  box-shadow: 0 4px 30px var(--glass-shadow);
  animation: fadeInUp 0.8s ease-out 0.3s both;
}

.hero-title {
  color: var(--color-off-white);
  margin-bottom: var(--spacing-lg);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
  animation: fadeInUp 0.6s ease-out 0.5s both;
}

.hero-title span {
  color: var(--color-primary-light);
}

.hero-text {
  color: var(--color-off-white);
  opacity: 0.95;
  line-height: 1.8;
}

.hero-text p {
  margin-bottom: var(--spacing-md);
  animation: fadeInUp 0.5s ease-out both;
}

.hero-text p:nth-child(1) { animation-delay: 0.6s; }
.hero-text p:nth-child(2) { animation-delay: 0.7s; }
.hero-text p:nth-child(3) { animation-delay: 0.8s; }
.hero-text p:nth-child(4) { animation-delay: 0.9s; }

.hero-text p:last-child {
  margin-bottom: 0;
}

/* ===========================================
   Page Layout (for inner pages)
   =========================================== */
.page {
  min-height: 100vh;
  padding-top: 80px; /* Account for fixed navbar */
  background: linear-gradient(135deg, var(--color-cream) 0%, var(--color-off-white) 100%);
}

.page-container {
  max-width: 1000px;
  margin: 0 auto;
  padding: var(--spacing-2xl) var(--spacing-xl);
}

.page-title {
  color: var(--color-charcoal);
  margin-bottom: var(--spacing-xl);
  text-align: center;
  animation: fadeInUp 0.6s ease-out 0.2s both;
}

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

/* ===========================================
   CV Page
   =========================================== */
.cv-container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
  animation: fadeInUp 0.6s ease-out 0.3s both;
}

.cv-actions {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
}

.cv-viewer {
  width: 100%;
  height: 80vh;
  min-height: 600px;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
  animation: scaleIn 0.5s ease-out 0.4s both;
  transition: box-shadow var(--transition-normal);
}

.cv-viewer:hover {
  box-shadow: 0 15px 50px rgba(0, 0, 0, 0.15);
}

/* ===========================================
   Buttons
   =========================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  font-family: var(--font-family);
  font-size: 1rem;
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.2),
    transparent
  );
  transition: left 0.5s ease;
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-off-white);
  box-shadow: 0 4px 14px rgba(170, 113, 128, 0.3);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(170, 113, 128, 0.4);
}

.btn-primary:active {
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(170, 113, 128, 0.3);
}

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

.btn-secondary:hover {
  background: var(--color-charcoal);
  color: var(--color-off-white);
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(31, 41, 55, 0.2);
}

.btn-secondary:active {
  transform: translateY(-1px);
}

/* ===========================================
   Placeholder Content
   =========================================== */
.placeholder-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 50vh;
  text-align: center;
}

.placeholder-icon {
  font-size: 4rem;
  margin-bottom: var(--spacing-lg);
  opacity: 0.5;
  animation: fadeInUp 0.6s ease-out 0.2s both, float 3s ease-in-out infinite 1s;
}

.placeholder-text {
  font-size: 1.25rem;
  color: var(--color-charcoal-light);
  animation: fadeInUp 0.6s ease-out 0.4s both;
}

/* ===========================================
   Research Page
   =========================================== */
.research-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-2xl);
}

.research-column {
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  border: 1px solid rgba(0, 0, 0, 0.05);
  animation: fadeInUp 0.6s ease-out both;
}

.research-column:nth-child(1) { animation-delay: 0.1s; }
.research-column:nth-child(2) { animation-delay: 0.2s; }

.research-column-title {
  font-size: 1.5rem;
  font-weight: var(--font-weight-semibold);
  color: var(--color-charcoal);
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 2px solid var(--color-cream);
}

.research-column-title span {
  color: var(--color-primary);
}

.research-content {
  color: var(--color-charcoal);
  line-height: 1.8;
}

.research-content p {
  margin-bottom: var(--spacing-lg);
}

.research-content p:last-child {
  margin-bottom: 0;
}

.research-placeholder {
  color: var(--color-charcoal-light);
  font-style: italic;
  text-align: center;
  padding: var(--spacing-2xl) 0;
}

.research-image {
  margin: var(--spacing-xl) 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
  animation: scaleIn 0.5s ease-out both;
}

.research-image img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.4s ease;
}

.research-image:hover img {
  transform: scale(1.02);
}

@media (max-width: 900px) {
  .research-grid {
    grid-template-columns: 1fr;
  }
}

/* Publications Section */
.publications-section {
  margin-top: var(--spacing-2xl);
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  border: 1px solid rgba(0, 0, 0, 0.05);
  animation: fadeInUp 0.6s ease-out 0.3s both;
}

.publications-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.publication-item {
  padding: var(--spacing-lg);
  background: var(--color-cream);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--color-primary);
  transition: all var(--transition-normal);
  animation: fadeInUp 0.5s ease-out both;
}

.publication-item:nth-child(1) { animation-delay: 0.4s; }
.publication-item:nth-child(2) { animation-delay: 0.5s; }
.publication-item:nth-child(3) { animation-delay: 0.6s; }

.publication-item:hover {
  background: white;
  box-shadow: 0 4px 20px rgba(170, 113, 128, 0.15);
  border-left-color: var(--color-primary-dark);
  transform: translateX(4px);
}

.publication-item a {
  color: var(--color-charcoal);
  line-height: 1.7;
  display: block;
  transition: color var(--transition-normal);
}

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

.publication-item em {
  font-style: italic;
}

.publication-item strong {
  font-weight: var(--font-weight-semibold);
}

/* ===========================================
   Contact Page
   =========================================== */
.contact-grid {
  display: flex;
  justify-content: center;
  gap: var(--spacing-2xl);
  flex-wrap: wrap;
  margin-top: var(--spacing-2xl);
}

.contact-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--spacing-2xl) var(--spacing-3xl);
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  border: 1px solid rgba(0, 0, 0, 0.05);
  transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  min-width: 280px;
  animation: fadeInUp 0.6s ease-out both;
}

.contact-card:nth-child(1) { animation-delay: 0.1s; }
.contact-card:nth-child(2) { animation-delay: 0.2s; }

.contact-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 50px rgba(170, 113, 128, 0.2);
  border-color: var(--color-primary-light);
}

.contact-icon {
  color: var(--color-primary);
  margin-bottom: var(--spacing-lg);
  transition: transform var(--transition-normal);
}

.contact-card:hover .contact-icon {
  transform: scale(1.1);
}

.contact-label {
  font-size: 1.25rem;
  font-weight: var(--font-weight-semibold);
  color: var(--color-charcoal);
  margin-bottom: var(--spacing-sm);
}

.contact-value {
  font-size: 1.1rem;
  color: var(--color-charcoal-light);
  transition: color var(--transition-normal);
}

.contact-card:hover .contact-value {
  color: var(--color-primary);
}

@media (max-width: 600px) {
  .contact-grid {
    flex-direction: column;
    align-items: center;
  }
  
  .contact-card {
    width: 100%;
    max-width: 320px;
  }
}

/* ===========================================
   Project Cards
   =========================================== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.project-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  border: 1px solid rgba(0, 0, 0, 0.05);
  transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  animation: fadeInUp 0.6s ease-out both;
}

.project-card:nth-child(1) { animation-delay: 0.1s; }
.project-card:nth-child(2) { animation-delay: 0.2s; }
.project-card:nth-child(3) { animation-delay: 0.3s; }
.project-card:nth-child(4) { animation-delay: 0.4s; }
.project-card:nth-child(5) { animation-delay: 0.5s; }
.project-card:nth-child(6) { animation-delay: 0.6s; }

.project-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 20px 50px rgba(170, 113, 128, 0.2);
  border-color: var(--color-primary-light);
}

.project-card-title {
  font-size: 1.25rem;
  font-weight: var(--font-weight-semibold);
  color: var(--color-charcoal);
  line-height: 1.4;
  transition: color var(--transition-normal);
}

.project-card:hover .project-card-title {
  color: var(--color-primary);
}

.project-card-description {
  font-size: 1rem;
  color: var(--color-charcoal-light);
  line-height: 1.7;
  flex-grow: 1;
}

.project-card-footer {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--color-primary);
  font-size: 0.9rem;
  font-weight: var(--font-weight-medium);
  margin-top: var(--spacing-sm);
}

.project-card-footer svg {
  transition: transform var(--transition-normal);
}

.project-card:hover .project-card-footer svg {
  transform: translateX(4px);
}

/* Project Detail Page */
.project-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.project-back {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--color-primary);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--spacing-lg);
  transition: all var(--transition-normal);
  animation: fadeIn 0.5s ease-out 0.1s both;
}

.project-back:hover {
  color: var(--color-primary-dark);
  gap: var(--spacing-md);
}

.project-back svg {
  transition: transform var(--transition-normal);
}

.project-back:hover svg {
  transform: translateX(-6px);
}

/* Side-by-side PDF layout */
.pdf-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
}

.pdf-column {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  animation: fadeInUp 0.6s ease-out both;
}

.pdf-column:nth-child(1) { animation-delay: 0.2s; }
.pdf-column:nth-child(2) { animation-delay: 0.35s; }

.pdf-column-title {
  font-size: 1.1rem;
  font-weight: var(--font-weight-semibold);
  color: var(--color-charcoal);
  text-align: center;
}

.pdf-column .cv-viewer {
  height: 70vh;
  min-height: 500px;
}

.pdf-column .cv-actions {
  justify-content: center;
}

@media (max-width: 1024px) {
  .pdf-grid {
    grid-template-columns: 1fr;
  }
  
  .pdf-column .cv-viewer {
    height: 60vh;
    min-height: 400px;
  }
}

/* ===========================================
   Navbar for inner pages (dark text version)
   =========================================== */
.navbar--light {
  background: rgba(255, 255, 255, 0.8);
  border-bottom: 1px solid rgba(31, 41, 55, 0.1);
}

.navbar--light .navbar-brand,
.navbar--light .nav-link {
  color: var(--color-charcoal);
  text-shadow: none;
}

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

.navbar--light .nav-link.active {
  color: var(--color-primary);
}

.navbar--light .navbar-toggle span {
  background: var(--color-charcoal);
}

/* ===========================================
   Responsive Design
   =========================================== */
@media (max-width: 768px) {
  .navbar-nav {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-xl);
    background: rgba(31, 41, 55, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transform: translateY(-150%);
    opacity: 0;
    transition: all var(--transition-normal);
    gap: var(--spacing-md);
  }

  .navbar-nav.active {
    transform: translateY(0);
    opacity: 1;
  }

  .navbar--light .navbar-nav {
    background: rgba(255, 255, 255, 0.95);
  }

  .navbar-toggle {
    display: flex;
  }

  .hero {
    justify-content: center;
    padding: var(--spacing-xl);
    padding-top: 100px;
    background-position: center center;
  }

  .hero::before {
    background: rgba(0, 0, 0, 0.4);
  }

  .hero-content {
    max-width: 100%;
    padding: var(--spacing-xl);
  }

  .cv-viewer {
    height: 60vh;
    min-height: 400px;
  }

  .page-container {
    padding: var(--spacing-xl) var(--spacing-md);
  }
}

@media (max-width: 480px) {
  .hero-content {
    padding: var(--spacing-lg);
  }

  h1 {
    font-size: 2rem;
  }

  .btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 0.9rem;
  }
}

/* ===========================================
   Reduced Motion Preference
   =========================================== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}