/*
  ============================================
  Andrea Gravina Portfolio - Styles
  ============================================

  A modern, glassy portfolio with pastel gradients
  and liquid animations. Fully customizable through
  CSS custom properties.
*/

/* ============================================
   CSS Custom Properties (Design Tokens)
   ============================================ */
:root {
  /* Color Palette - Default Pastel Theme */
  --color-primary: #667eea;
  --color-primary-light: #7c8ff5;
  --color-primary-dark: #5568d3;
  --color-secondary: #764ba2;
  --color-secondary-light: #9d6bc8;
  --color-secondary-dark: #5e3a82;

  /* Gradient Backgrounds */
  --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-hero: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
  --gradient-card: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);

  /* Glass Effect Properties */
  --glass-bg: rgba(255, 255, 255, 0.1);
  --glass-border: rgba(255, 255, 255, 0.2);
  --glass-blur: 15px;
  --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);

  /* 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;

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-heading: 'Space Grotesk', 'Inter', sans-serif;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;

  /* Layout */
  --container-width: 1200px;
  --container-padding: 2rem;

  /* Transitions & Animations */
  --transition-speed: 0.8s;
  --transition-fast: 0.3s;
  --transition-ease: cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);

  /* Z-index Scale */
  --z-base: 1;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal: 400;
  --z-tooltip: 500;

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

  /* Light Mode Colors (Default) */
  --bg-primary: #fdfbfb;
  --bg-secondary: #ebedee;
  --text-primary: #2d3748;
  --text-secondary: #4a5568;
  --text-tertiary: #718096;
  --nav-bg: rgba(255, 255, 255, 0.8);
  --nav-bg-scrolled: rgba(255, 255, 255, 0.95);
  --card-bg: rgba(255, 255, 255, 0.1);
}

/* Dark Mode */
body.dark-mode {
  --bg-primary: #0f1419;
  --bg-secondary: #1a1f2e;
  --text-primary: #ffffff;
  --text-secondary: #e4e6eb;
  --text-tertiary: #b8bcc8;
  --nav-bg: rgba(15, 20, 25, 0.9);
  --nav-bg-scrolled: rgba(15, 20, 25, 0.98);
  --card-bg: rgba(30, 35, 45, 0.6);
  --glass-bg: rgba(30, 35, 45, 0.8);
  --glass-border: rgba(255, 255, 255, 0.15);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.5);
}

/* Dark Mode Specific Overrides */
body.dark-mode .section-subtitle {
  color: #b8bcc8;
}

body.dark-mode .nav__link {
  color: #e4e6eb;
}

body.dark-mode .nav__link:hover,
body.dark-mode .nav__link:focus {
  color: #ffffff;
}

body.dark-mode .about__fact span {
  color: #e4e6eb;
}

body.dark-mode .timeline__description {
  color: #e4e6eb;
}

body.dark-mode .timeline__highlights li {
  color: #e4e6eb;
}

body.dark-mode .contact__description {
  color: #b8bcc8;
}

body.dark-mode .contact__method-label {
  color: #b8bcc8;
}

body.dark-mode .contact__method-value {
  color: #ffffff;
}

body.dark-mode .stat-card__label {
  color: #b8bcc8;
}

body.dark-mode .footer__text {
  color: #b8bcc8;
}

body.dark-mode .form-label {
  color: #ffffff;
}

body.dark-mode .form-input {
  background: rgba(30, 35, 45, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #ffffff;
}

body.dark-mode .form-input:focus {
  background: rgba(30, 35, 45, 0.8);
  border-color: var(--color-primary);
}

body.dark-mode .form-input::placeholder {
  color: #6b7280;
}

body.dark-mode .timeline__title,
body.dark-mode .about__info-title,
body.dark-mode .contact__title,
body.dark-mode .skill-category__title,
body.dark-mode .skill-item__name,
body.dark-mode .theme-panel__section-title,
body.dark-mode .contact__social-title {
  color: #ffffff;
}

body.dark-mode .hero__title {
  color: #ffffff;
}

body.dark-mode .contact__method {
  background: rgba(102, 126, 234, 0.15);
}

body.dark-mode .contact__method:hover {
  background: rgba(102, 126, 234, 0.25);
}

body.dark-mode .social-link {
  background: rgba(30, 35, 45, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

body.dark-mode .social-link:hover {
  background: var(--gradient-primary);
  border-color: transparent;
}

body.dark-mode .filter-btn {
  background: rgba(30, 35, 45, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #e4e6eb;
}

body.dark-mode .filter-btn:hover {
  background: rgba(102, 126, 234, 0.2);
  border-color: var(--color-primary);
}

body.dark-mode .filter-btn--active {
  background: var(--gradient-primary);
  color: white;
  border-color: transparent;
}

body.dark-mode .skill-item__bar {
  background: rgba(102, 126, 234, 0.2);
}

body.dark-mode .back-to-top {
  background: var(--gradient-primary);
}

/* Remove separate background from nav menu in desktop - it should only have background in mobile */

body.dark-mode .theme-toggle {
  background: rgba(30, 35, 45, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

body.dark-mode .hero__gradient {
  opacity: 0.25;
}

body.dark-mode .shape {
  opacity: 0.15;
}

body.dark-mode .experience {
  background: linear-gradient(180deg, transparent 0%, rgba(102, 126, 234, 0.05) 100%);
}

body.dark-mode .contact {
  background: linear-gradient(180deg, rgba(102, 126, 234, 0.05) 0%, transparent 100%);
}

body.dark-mode .footer {
  background: linear-gradient(180deg, transparent 0%, rgba(102, 126, 234, 0.08) 100%);
  border-top: 1px solid rgba(102, 126, 234, 0.15);
}

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

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

body {
  font-family: var(--font-primary);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--text-primary);
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
  overflow-x: hidden;
  position: relative;
  transition: background 0.3s ease, color 0.3s ease;
}

/* Improve text rendering */
body,
button,
input,
textarea {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* Accessibility: Skip to main content */
.skip-to-main {
  position: absolute;
  top: -100%;
  left: 0;
  background: var(--color-primary);
  color: white;
  padding: var(--space-sm) var(--space-md);
  z-index: var(--z-tooltip);
  transition: top var(--transition-fast) var(--transition-ease);
}

.skip-to-main:focus {
  top: 0;
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  color: var(--text-primary);
}

h1 { font-size: clamp(2.5rem, 5vw, var(--text-6xl)); }
h2 { font-size: clamp(2rem, 4vw, var(--text-5xl)); }
h3 { font-size: clamp(1.5rem, 3vw, var(--text-3xl)); }
h4 { font-size: var(--text-2xl); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

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

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

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

/* Focus visible for keyboard navigation */
*:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* ============================================
   Utility Classes
   ============================================ */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

/* Glass Card Effect */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--glass-shadow);
  padding: var(--space-lg);
  transition: transform var(--transition-speed) var(--transition-ease),
              box-shadow var(--transition-speed) var(--transition-ease);
}

.glass-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 48px 0 rgba(31, 38, 135, 0.2);
}

/* Section Headers */
.section-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section-title {
  margin-bottom: var(--space-sm);
  background: var(--gradient-primary);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.section-title__underline {
  width: 80px;
  height: 4px;
  background: var(--gradient-primary);
  margin: var(--space-sm) auto var(--space-md);
  border-radius: var(--radius-full);
  animation: expandWidth 1s var(--transition-ease) forwards;
}

.section-subtitle {
  font-size: var(--text-lg);
  color: #718096;
  max-width: 600px;
  margin: 0 auto;
}

/* Scroll Animation Classes */
[data-scroll-animation] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--transition-speed) var(--transition-ease),
              transform var(--transition-speed) var(--transition-ease);
}

[data-scroll-animation].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   Navigation
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);
  background: var(--nav-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--glass-border);
  transition: background var(--transition-fast) var(--transition-ease),
              box-shadow var(--transition-fast) var(--transition-ease);
}

.nav.scrolled {
  background: var(--nav-bg-scrolled);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.nav__container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--space-sm) var(--container-padding);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  position: relative;
}

.nav__left {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex: 0 0 auto;
}

.nav__logo {
  display: flex;
  align-items: center;
  font-weight: 700;
  font-size: var(--text-xl);
  color: var(--color-primary);
  transition: transform var(--transition-fast) var(--transition-ease);
}

.nav__logo:hover {
  transform: scale(1.05);
}

.nav__logo-img {
  height: 50px;
  width: auto;
  display: block;
  transition: transform var(--transition-fast) var(--transition-ease);
}

.nav__logo-text {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  background: var(--gradient-primary);
  color: white;
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
}

.nav__menu {
  display: flex;
  list-style: none;
  gap: var(--space-lg);
  margin: 0;
  padding: 0;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.nav__item {
  position: relative;
}

.nav__link {
  display: block;
  padding: var(--space-xs) var(--space-sm);
  color: #4a5568;
  font-weight: 500;
  position: relative;
  transition: color var(--transition-fast) var(--transition-ease);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 100%;
  height: 2px;
  background: var(--gradient-primary);
  transition: transform var(--transition-fast) var(--transition-ease);
}

.nav__link:hover,
.nav__link:focus {
  color: var(--color-primary);
}

.nav__link:hover::after,
.nav__link:focus::after {
  transform: translateX(-50%) scaleX(1);
}

/* Mobile Menu Toggle */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: var(--space-xs);
}

.nav__toggle-line {
  width: 25px;
  height: 2px;
  background: var(--color-primary);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast) var(--transition-ease);
}

.nav__toggle[aria-expanded="true"] .nav__toggle-line:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.nav__toggle[aria-expanded="true"] .nav__toggle-line:nth-child(2) {
  opacity: 0;
}

.nav__toggle[aria-expanded="true"] .nav__toggle-line:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* Theme Toggle Button */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast) var(--transition-ease);
  color: var(--color-primary);
}

.theme-toggle:hover {
  transform: scale(1.05);
  background: var(--gradient-primary);
  color: white;
}

/* Dark Mode Toggle Icons */
.theme-toggle .moon-icon {
  display: none;
}

body.dark-mode .theme-toggle .sun-icon {
  display: none;
}

body.dark-mode .theme-toggle .moon-icon {
  display: block;
}

/* Language Toggle Button */
.language-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast) var(--transition-ease);
  color: var(--text-primary);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 600;
  white-space: nowrap;
}

.language-toggle:hover {
  transform: scale(1.05);
  background: var(--gradient-primary);
  color: white;
  border-color: transparent;
}

.language-toggle svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.language-toggle span {
  font-family: var(--font-heading);
  letter-spacing: 0.05em;
}

body.dark-mode .language-toggle {
  background: rgba(30, 35, 45, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 80px;
  overflow: hidden;
}

.hero__background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  overflow: hidden;
}

.hero__gradient {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-hero);
  opacity: 0.15;
  animation: gradientShift 15s ease infinite;
}

.hero__shapes {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.3;
  animation: floatShape 20s ease-in-out infinite;
}

.shape--1 {
  width: 400px;
  height: 400px;
  background: var(--color-primary);
  top: 10%;
  left: 10%;
  animation-delay: 0s;
}

.shape--2 {
  width: 300px;
  height: 300px;
  background: var(--color-secondary);
  top: 60%;
  right: 10%;
  animation-delay: -5s;
}

.shape--3 {
  width: 350px;
  height: 350px;
  background: #f093fb;
  bottom: 10%;
  left: 50%;
  animation-delay: -10s;
}

.hero__content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: var(--space-2xl) 0;
}

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

.hero__greeting {
  font-size: var(--text-xl);
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
  font-weight: 600;
  opacity: 0;
  animation: fadeInUp 0.8s var(--transition-ease) 0.2s forwards;
}

.hero__name {
  font-size: clamp(3rem, 8vw, 5rem);
  font-weight: 700;
  margin-bottom: var(--space-md);
  background: var(--gradient-primary);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  opacity: 0;
  animation: fadeInUp 0.8s var(--transition-ease) 0.4s forwards;
}

.hero__title {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  color: #2d3748;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  opacity: 0;
  animation: fadeInUp 0.8s var(--transition-ease) 0.6s forwards;
}

.hero__subtitle {
  font-size: var(--text-lg);
  color: #718096;
  margin-bottom: var(--space-xl);
  opacity: 0;
  animation: fadeInUp 0.8s var(--transition-ease) 0.8s forwards;
}

.hero__cta {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeInUp 0.8s var(--transition-ease) 1s forwards;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-md) var(--space-xl);
  font-size: var(--text-base);
  font-weight: 600;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast) var(--transition-ease);
  border: 2px solid transparent;
  text-decoration: none;
}

.btn__icon {
  transition: transform var(--transition-fast) var(--transition-ease);
}

.btn:hover .btn__icon {
  transform: translateX(3px);
}

.btn--primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.btn--primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
  color: white;
}

.btn--primary:link,
.btn--primary:visited,
.btn--primary:focus,
.btn--primary:active {
  color: white;
}

.btn--primary:visited:hover,
.btn--primary:focus:hover,
.btn--primary:active:hover {
  color: white;
}

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

.btn--secondary:hover {
  background: var(--gradient-primary);
  color: white;
  border-color: transparent;
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
}

.btn--secondary:link,
.btn--secondary:visited {
  color: var(--color-primary);
}

.btn--secondary:visited:hover,
.btn--secondary:focus:hover,
.btn--secondary:active:hover {
  color: white;
}

.btn--full {
  width: 100%;
  justify-content: center;
}

/* ============================================
   About Section
   ============================================ */
.about {
  padding: var(--space-3xl) 0;
  position: relative;
}

.about__content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-xl);
  margin-top: var(--space-xl);
  align-items: start;
}

.about__bio-text p {
  font-size: var(--text-lg);
  line-height: 1.8;
}

.about__bio-text strong {
  color: var(--color-primary);
  font-weight: 600;
}

.about__bio-text em {
  color: var(--color-secondary);
  font-style: italic;
}

.about__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-xl);
  padding-top: var(--space-xl);
  border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.stat-card {
  text-align: center;
  position: relative;
  transition: transform var(--transition-fast) var(--transition-ease);
}

.stat-card__number {
  font-size: var(--text-4xl);
  font-weight: 700;
  background: var(--gradient-primary);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: var(--space-xs);
}

.stat-card__label {
  font-size: var(--text-sm);
  color: #718096;
  font-weight: 500;
  margin-bottom: var(--space-xs);
}

/* ============================================
   Stat Card Interactions - Expandable Dropdown
   ============================================ */
.stat-card--expandable {
  text-align: center;
}

.stat-card__header {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
}

.stat-card__expand-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  margin-top: 4px;
  background: rgba(102, 126, 234, 0.1);
  border: 1px solid rgba(102, 126, 234, 0.3);
  border-radius: 50%;
  color: var(--color-primary);
  cursor: pointer;
  transition: all var(--transition-fast) var(--transition-ease);
}

.stat-card__expand-btn:hover {
  background: var(--gradient-primary);
  color: white;
  border-color: transparent;
  transform: scale(1.1);
}

.stat-card__expand-btn svg {
  transition: transform var(--transition-fast) var(--transition-ease);
}

.stat-card__expand-btn[aria-expanded="true"] svg {
  transform: rotate(180deg);
}

.stat-card__details {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s var(--transition-ease);
}

.stat-card__details.is-expanded {
  max-height: 600px; /* Increased for better spacing */
}

.stat-card__details-content {
  padding: var(--space-md);
  text-align: left;
  font-size: var(--text-sm);
  color: var(--text-secondary);
  background: rgba(102, 126, 234, 0.05);
  border-radius: var(--radius-sm);
  margin-top: var(--space-md);
  margin-bottom: var(--space-sm);
}

.stat-card__details-content p {
  margin-bottom: var(--space-sm);
  font-size: var(--text-sm);
}

.stat-card__details-content strong {
  color: var(--text-primary);
}

.stat-card__details-content ul {
  list-style: none;
  padding: 0;
  margin: var(--space-sm) 0;
}

.stat-card__details-content li {
  padding: 4px 0 4px var(--space-md);
  position: relative;
  line-height: 1.6;
}

.stat-card__details-content li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 12px;
  width: 6px;
  height: 6px;
  background: var(--gradient-primary);
  border-radius: 50%;
}

.stat-card__note {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  font-style: italic;
  margin-top: var(--space-sm);
  padding-top: var(--space-sm);
  border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.about__info-title {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-lg);
  color: #2d3748;
}

.about__facts {
  list-style: none;
  padding: 0;
  margin: 0;
}

.about__fact {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.about__fact:last-child {
  border-bottom: none;
}

.about__fact-icon {
  flex-shrink: 0;
  color: var(--color-primary);
  margin-top: 2px;
}

.about__fact span {
  font-size: var(--text-base);
  color: #4a5568;
}

/* ============================================
   Experience Section
   ============================================ */
.experience {
  padding: var(--space-3xl) 0;
  background: linear-gradient(180deg, transparent 0%, rgba(102, 126, 234, 0.03) 100%);
}

.experience__filters {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
  flex-wrap: wrap;
}

.filter-btn {
  padding: var(--space-sm) var(--space-lg);
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  color: #4a5568;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast) var(--transition-ease);
}

.filter-btn:hover {
  transform: translateY(-2px);
  background: rgba(102, 126, 234, 0.1);
  border-color: var(--color-primary);
}

.filter-btn--active {
  background: var(--gradient-primary);
  color: white;
  border-color: transparent;
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

/* Timeline */
.timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  padding-left: 40px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-primary), var(--color-secondary));
  border-radius: var(--radius-full);
}

.timeline__item {
  position: relative;
  margin-bottom: var(--space-xl);
  padding-left: var(--space-xl);
  opacity: 1;
  transition: all var(--transition-speed) var(--transition-ease);
}

.timeline__item.is-hidden {
  display: none;
}

.timeline__marker {
  position: absolute;
  left: -8px;
  top: 24px;
  width: 18px;
  height: 18px;
  background: white;
  border: 3px solid var(--color-primary);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.2);
  transition: all var(--transition-fast) var(--transition-ease);
}

.timeline__item:hover .timeline__marker {
  transform: scale(1.2);
  box-shadow: 0 0 0 6px rgba(102, 126, 234, 0.3);
}

.timeline__content {
  position: relative;
}

.timeline__logo {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  width: 120px;
  height: 120px;
  object-fit: cover;
  border-radius: var(--radius-md);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  transition: transform var(--transition-fast) var(--transition-ease);
}

.timeline__item:hover .timeline__logo {
  transform: scale(1.05);
}

.timeline__date {
  display: inline-block;
  padding: var(--space-xs) var(--space-md);
  background: var(--gradient-primary);
  color: white;
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-md);
}

.timeline__title {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-xs);
  color: #2d3748;
}

.timeline__subtitle {
  font-size: var(--text-lg);
  color: var(--color-primary);
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.timeline__tag {
  display: inline-block;
  padding: var(--space-xs) var(--space-md);
  background: rgba(102, 126, 234, 0.1);
  color: var(--color-primary);
  font-size: var(--text-xs);
  font-weight: 600;
  border-radius: var(--radius-full);
  margin-right: var(--space-xs);
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.timeline__tag--content {
  background: rgba(240, 147, 251, 0.15);
  color: #c44dd6;
}

.timeline__tag--community {
  background: rgba(79, 209, 197, 0.15);
  color: #0d9488;
}

.timeline__tag--technical {
  background: rgba(59, 130, 246, 0.15);
  color: #2563eb;
}

.timeline__tag--other {
  background: rgba(168, 85, 247, 0.15);
  color: #7c3aed;
}

.timeline__description {
  font-size: var(--text-base);
  color: #4a5568;
  line-height: 1.8;
  margin-bottom: var(--space-md);
}

.timeline__highlights {
  list-style: none;
  padding: 0;
  margin: 0;
}

.timeline__highlights li {
  position: relative;
  padding-left: var(--space-lg);
  margin-bottom: var(--space-sm);
  color: #4a5568;
  line-height: 1.6;
}

.timeline__highlights li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  background: var(--gradient-primary);
  border-radius: 50%;
}

/* ============================================
   Skills Section
   ============================================ */
.skills {
  padding: var(--space-3xl) 0;
}

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

.skill-category--centered {
  grid-column: 2 / 3;
}

@media (max-width: 768px) {
  .skill-category--centered {
    grid-column: auto;
  }
}

.skill-category.glass-card {
  padding: var(--space-xl) var(--space-lg);
  text-align: center;
  transition: all var(--transition-fast) var(--transition-ease);
  position: relative;
  overflow: hidden;
}

.skill-category.glass-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transition: transform var(--transition-fast) var(--transition-ease);
}

.skill-category.glass-card:hover::before {
  transform: scaleX(1);
}

.skill-category.glass-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 16px 48px 0 rgba(102, 126, 234, 0.25);
}

.skill-category__icon-badge {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--space-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  border-radius: var(--radius-md);
  color: white;
}

.skill-category__title {
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 var(--space-sm) 0;
  letter-spacing: -0.02em;
}

.skill-category__list {
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--text-secondary);
  margin: 0;
  font-weight: 500;
}

/* ============================================
   Contact Section
   ============================================ */
.contact {
  padding: var(--space-3xl) 0;
  background: linear-gradient(180deg, rgba(102, 126, 234, 0.03) 0%, transparent 100%);
}

.contact__content {
  display: flex;
  justify-content: center;
  margin-top: var(--space-xl);
}

.contact__info--centered {
  max-width: 600px;
  width: 100%;
}

.contact__title {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-md);
  color: #2d3748;
}

.contact__description {
  font-size: var(--text-base);
  color: #718096;
  line-height: 1.8;
  margin-bottom: var(--space-xl);
}

.contact__methods {
  margin-bottom: var(--space-xl);
}

.contact__method {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: rgba(102, 126, 234, 0.05);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast) var(--transition-ease);
  text-decoration: none;
  color: inherit;
}

.contact__method:hover {
  background: rgba(102, 126, 234, 0.1);
  transform: translateX(5px);
}

.contact__method-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--gradient-primary);
  color: white;
  border-radius: var(--radius-md);
  flex-shrink: 0;
}

.contact__method-content {
  display: flex;
  flex-direction: column;
}

.contact__method-label {
  font-size: var(--text-sm);
  color: #718096;
  font-weight: 500;
}

.contact__method-value {
  font-size: var(--text-base);
  color: #2d3748;
  font-weight: 600;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.contact__social-title {
  font-size: var(--text-lg);
  margin-bottom: var(--space-md);
  color: #2d3748;
}

.social-links {
  display: flex;
  gap: var(--space-md);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--color-primary);
  transition: all var(--transition-fast) var(--transition-ease);
}

.social-link:hover {
  background: var(--gradient-primary);
  color: white;
  transform: translateY(-3px);
  box-shadow: 0 8px 16px rgba(102, 126, 234, 0.3);
}

/* Contact Form */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  margin-bottom: var(--space-sm);
  font-weight: 500;
  color: #2d3748;
}

.form-input {
  width: 100%;
  padding: var(--space-md);
  background: rgba(255, 255, 255, 0.5);
  border: 1px solid rgba(102, 126, 234, 0.2);
  border-radius: var(--radius-md);
  font-family: var(--font-primary);
  font-size: var(--text-base);
  color: #2d3748;
  transition: all var(--transition-fast) var(--transition-ease);
}

.form-input:focus {
  outline: none;
  background: rgba(255, 255, 255, 0.8);
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

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

.form-message {
  margin-top: var(--space-md);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  font-weight: 500;
  display: none;
}

.form-message.success {
  display: block;
  background: rgba(72, 187, 120, 0.1);
  color: #2f855a;
  border: 1px solid rgba(72, 187, 120, 0.3);
}

.form-message.error {
  display: block;
  background: rgba(245, 101, 101, 0.1);
  color: #c53030;
  border: 1px solid rgba(245, 101, 101, 0.3);
}

/* ============================================
   Footer
   ============================================ */
.footer {
  padding: var(--space-xl) 0;
  background: linear-gradient(180deg, transparent 0%, rgba(102, 126, 234, 0.05) 100%);
  border-top: 1px solid rgba(102, 126, 234, 0.1);
}

.footer__content {
  text-align: center;
}

.footer__text {
  color: #718096;
  margin-bottom: var(--space-sm);
}

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

/* Back to Top Button */
.back-to-top {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-xl);
  width: 50px;
  height: 50px;
  background: var(--gradient-primary);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
  transition: all var(--transition-fast) var(--transition-ease);
  z-index: var(--z-sticky);
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.back-to-top.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: all;
}

.back-to-top:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(102, 126, 234, 0.4);
}

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

@keyframes expandWidth {
  from {
    width: 0;
  }
  to {
    width: 80px;
  }
}

@keyframes floatShape {
  0%, 100% {
    transform: translate(0, 0) scale(1);
  }
  33% {
    transform: translate(30px, -30px) scale(1.1);
  }
  66% {
    transform: translate(-20px, 20px) scale(0.9);
  }
}

@keyframes gradientShift {
  0%, 100% {
    opacity: 0.15;
  }
  50% {
    opacity: 0.25;
  }
}

@keyframes shimmer {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

/* ============================================
   Responsive Design
   ============================================ */

/* Tablets */
@media (max-width: 1024px) {
  :root {
    --container-padding: 1.5rem;
  }

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

  .skills__grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  }

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

/* Mobile */
@media (max-width: 768px) {
  :root {
    --container-padding: 1rem;
    --space-3xl: 4rem;
  }

  /* Navigation */
  .nav__left {
    gap: var(--space-sm);
  }

  .nav__menu {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    padding: var(--space-lg);
    gap: var(--space-sm);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    opacity: 0;
    transform: translateY(-20px);
    pointer-events: none;
    transition: all var(--transition-fast) var(--transition-ease);
  }

  .nav__menu.is-open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: all;
  }

  /* Dark mode navbar menu background for mobile only */
  body.dark-mode .nav__menu {
    background: rgba(15, 20, 25, 0.98);
  }

  .nav__toggle {
    display: flex;
  }

  .theme-toggle {
    order: -1;
  }

  .language-toggle {
    font-size: 0.75rem;
    padding: 0.4rem 0.6rem;
  }

  .language-toggle svg {
    width: 16px;
    height: 16px;
  }

  /* Hero */
  .hero {
    min-height: 100vh;
    padding-top: 60px;
  }

  .hero__content {
    padding: var(--space-lg) 0;
  }

  .hero__cta {
    flex-direction: column;
    width: 100%;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  /* About */
  .about__stats {
    grid-template-columns: 1fr;
  }

  /* Timeline */
  .timeline {
    padding-left: 30px;
  }

  .timeline__item {
    padding-left: var(--space-lg);
  }

  /* Timeline logos on mobile - make them smaller and positioned better */
  .timeline__logo {
    position: relative;
    top: auto;
    right: auto;
    width: 80px;
    height: 80px;
    float: right;
    margin: 0 0 var(--space-sm) var(--space-md);
  }

  /* Back to Top */
  .back-to-top {
    bottom: var(--space-lg);
    right: var(--space-lg);
  }
}

@media (max-width: 480px) {
  .hero__name {
    font-size: 2.5rem;
  }

  .section-title {
    font-size: 2rem;
  }

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

  .skill-category__icon {
    width: 48px;
    height: 48px;
  }

  .skill-category__icon svg {
    width: 24px;
    height: 24px;
  }

  /* Contact Section - Compact for small screens */
  .contact__title {
    font-size: var(--text-xl);
  }

  .contact__method {
    flex-direction: column;
    text-align: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-sm);
  }

  .contact__method-icon {
    width: 40px;
    height: 40px;
  }

  .contact__method-icon svg {
    width: 20px;
    height: 20px;
  }

  .contact__method-value {
    font-size: var(--text-sm);
    word-break: break-all;
  }

  .social-links {
    justify-content: center;
    flex-wrap: wrap;
  }

  .social-link {
    width: 44px;
    height: 44px;
  }

  .social-link svg {
    width: 20px;
    height: 20px;
  }

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

  .form-input,
  .form-textarea {
    font-size: var(--text-sm);
    padding: var(--space-sm);
  }

  .btn {
    padding: var(--space-sm) var(--space-lg);
    font-size: var(--text-sm);
  }
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
  .nav,
  .back-to-top,
  .filter-btn,
  .contact__form-wrapper {
    display: none !important;
  }

  body {
    background: white;
  }

  .glass-card {
    background: white;
    border: 1px solid #e2e8f0;
    box-shadow: none;
  }

  .section-title {
    color: #2d3748;
    -webkit-text-fill-color: unset;
  }

  a {
    text-decoration: underline;
  }

  .hero {
    min-height: auto;
    padding: 2rem 0;
  }
}

/* ============================================
   Project Modal
   ============================================ */

/* Clickable timeline items */
.timeline__item--clickable {
  cursor: pointer;
  position: relative;
}

.timeline__item--clickable::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--transition-fast) var(--transition-ease);
  pointer-events: none;
  z-index: -1;
}

.timeline__item--clickable:hover::after {
  opacity: 0.05;
}

.timeline__item--clickable:active {
  transform: translateY(-3px);
}

/* CTA hint at bottom of clickable cards */
.timeline__cta-hint {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid rgba(102, 126, 234, 0.2);
  color: var(--color-primary);
  font-size: var(--text-sm);
  font-weight: 600;
  opacity: 0.8;
  transition: all var(--transition-fast) var(--transition-ease);
}

.timeline__item--clickable:hover .timeline__cta-hint {
  opacity: 1;
  gap: var(--space-sm);
}

.timeline__cta-icon {
  transition: transform var(--transition-fast) var(--transition-ease);
}

.timeline__item--clickable:hover .timeline__cta-icon {
  transform: translateX(3px);
}

/* Modal container */
.project-modal {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-fast) var(--transition-ease),
              visibility var(--transition-fast) var(--transition-ease);
}

.project-modal.is-open {
  opacity: 1;
  visibility: visible;
}

/* Overlay */
.project-modal__overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  animation: fadeIn 0.3s var(--transition-ease);
}

/* Modal container with scroll */
.project-modal__container {
  position: relative;
  width: 100%;
  max-width: 700px;
  max-height: 90vh;
  overflow-y: auto;
  overflow-x: hidden;
  z-index: 1;
  animation: slideUp 0.4s var(--transition-ease);
  /* Custom scrollbar */
  scrollbar-width: thin;
  scrollbar-color: var(--color-primary) transparent;
}

.project-modal__container::-webkit-scrollbar {
  width: 8px;
}

.project-modal__container::-webkit-scrollbar-track {
  background: transparent;
}

.project-modal__container::-webkit-scrollbar-thumb {
  background: var(--color-primary);
  border-radius: var(--radius-full);
}

.project-modal__container::-webkit-scrollbar-thumb:hover {
  background: var(--color-primary-dark);
}

/* Modal content */
.project-modal__content {
  position: relative;
  padding: var(--space-2xl);
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

/* Close button */
.project-modal__close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.1);
  border: 1px solid var(--glass-border);
  border-radius: 50%;
  cursor: pointer;
  color: var(--text-primary);
  transition: all var(--transition-fast) var(--transition-ease);
  z-index: 2;
}

.project-modal__close:hover {
  background: var(--gradient-primary);
  color: white;
  transform: rotate(90deg);
  border-color: transparent;
}

/* Modal header */
.project-modal__header {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-lg);
  border-bottom: 2px solid rgba(102, 126, 234, 0.2);
}

.project-modal__logo {
  width: 80px;
  height: 80px;
  object-fit: cover;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  flex-shrink: 0;
}

.project-modal__header-text {
  flex: 1;
  min-width: 0;
}

.project-modal__title {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-xs);
  background: var(--gradient-primary);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.project-modal__subtitle {
  font-size: var(--text-base);
  color: var(--color-primary);
  font-weight: 600;
  margin: 0;
}

/* Modal body */
.project-modal__body {
  margin-bottom: var(--space-xl);
}

.project-modal__section {
  margin-bottom: var(--space-xl);
}

.project-modal__section-title {
  font-size: var(--text-xl);
  color: var(--text-primary);
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.project-modal__section-title::before {
  content: '';
  width: 4px;
  height: 24px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
}

.project-modal__description {
  font-size: var(--text-base);
  line-height: 1.8;
  color: var(--text-secondary);
  margin: 0;
}

.project-modal__highlights {
  list-style: none;
  padding: 0;
  margin: 0;
}

.project-modal__highlights li {
  position: relative;
  padding-left: var(--space-xl);
  margin-bottom: var(--space-md);
  color: var(--text-secondary);
  line-height: 1.7;
  font-size: var(--text-base);
}

.project-modal__highlights li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 10px;
  height: 10px;
  background: var(--gradient-primary);
  border-radius: 50%;
}

.project-modal__highlights li:last-child {
  margin-bottom: 0;
}

/* Stats grid */
.project-modal__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-lg);
  padding: var(--space-lg);
  background: rgba(102, 126, 234, 0.05);
  border-radius: var(--radius-md);
}

.project-modal__stat {
  text-align: center;
  padding: var(--space-md);
}

.project-modal__stat-value {
  font-size: var(--text-3xl);
  font-weight: 700;
  background: var(--gradient-primary);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: block;
  margin-bottom: var(--space-xs);
}

.project-modal__stat-label {
  font-size: var(--text-sm);
  color: var(--text-tertiary);
  font-weight: 500;
}

/* Top CTA Button */
.project-modal__cta-top {
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid rgba(102, 126, 234, 0.2);
}

.project-modal__cta-top .project-modal__cta {
  width: 100%;
  justify-content: center;
}

/* Modal footer */
.project-modal__footer {
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(102, 126, 234, 0.2);
}

.project-modal__cta {
  width: 100%;
  justify-content: center;
}

/* Modal animations */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* Dark mode adjustments */
body.dark-mode .project-modal__close {
  background: rgba(255, 255, 255, 0.1);
}

body.dark-mode .timeline__cta-hint {
  border-top-color: rgba(102, 126, 234, 0.3);
}

/* Mobile optimizations */
@media (max-width: 768px) {
  .project-modal {
    padding: 0;
    align-items: flex-end;
  }

  .project-modal__container {
    max-width: 100%;
    max-height: 95vh;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  }

  .project-modal__content {
    padding: var(--space-xl);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  }

  .project-modal__header {
    flex-direction: column;
    text-align: center;
    gap: var(--space-md);
  }

  .project-modal__logo {
    width: 100px;
    height: 100px;
  }

  .project-modal__title {
    font-size: var(--text-2xl);
  }

  .project-modal__close {
    top: var(--space-sm);
    right: var(--space-sm);
  }

  .project-modal__stats {
    grid-template-columns: 1fr;
  }

  /* Make clickable cards more obvious on mobile */
  .timeline__cta-hint {
    background: rgba(102, 126, 234, 0.08);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-sm);
    border-top: none;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .project-modal__content {
    padding: var(--space-lg);
  }

  .project-modal__logo {
    width: 80px;
    height: 80px;
  }

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

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

  .project-modal__stat-value {
    font-size: var(--text-2xl);
  }
}

/* Prevent body scroll when modal is open */
body.modal-open {
  overflow: hidden;
}

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

  .shape {
    animation: none;
  }

  .project-modal__container {
    animation: none;
  }

  .project-modal__overlay {
    animation: none;
  }
}