/* style.css - Main styles for Andrés Prado Portfolio */

/* ================== VARIABLES ================== */
:root {
  /* Dark Theme Palette */
  --bg-color: #0d1117;
  --bg-surface: #161b22;
  --bg-surface-elevated: #21262d;
  
  /* Primary Accent: Cyan / Electric Blue */
  --accent-color: #00D4FF;
  --accent-hover: #00bfff;
  --accent-glow: rgba(0, 212, 255, 0.15);
  
  /* Text Colors */
  --text-primary: #f0f6fc;
  --text-secondary: #8b949e;
  --text-muted: #6e7681;
  
  /* Borders */
  --border-color: #30363d;
  
  /* Typography */
  --font-heading: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'Fira Code', monospace;
  
  /* Spacing & Layout */
  --container-width: 1100px;
  --spacing-section: 6rem;
  
  /* Animations */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-color);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
}

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

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

ul {
  list-style: none;
}

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

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  width: 100%;
}

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

.highlight {
  color: var(--accent-color);
}

code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background-color: var(--bg-surface-elevated);
  padding: 0.2em 0.4em;
  border-radius: 4px;
  color: #c9d1d9;
}

/* ================== TYPOGRAPHY ================== */
.section-header {
  margin-bottom: 3rem;
  position: relative;
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.section-line {
  height: 4px;
  width: 60px;
  background: var(--accent-color);
  border-radius: 2px;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 3rem;
  max-width: 600px;
}

/* ================== BUTTONS ================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-weight: 500;
  font-family: var(--font-heading);
  transition: var(--transition-normal);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background-color: var(--accent-color);
  color: #000;
}

.btn-primary:hover {
  background-color: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--accent-glow);
  color: #000;
}

.btn-secondary {
  background-color: var(--bg-surface-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background-color: #2b313a;
  transform: translateY(-2px);
  color: var(--text-primary);
}

.btn-outline {
  background-color: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-outline:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.1rem;
}

/* ================== NAVBAR ================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: rgba(13, 17, 23, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(48, 54, 61, 0.5);
  transition: var(--transition-normal);
}

.nav-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 1rem 1.5rem;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: -1px;
}

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
}

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

.nav-links a.active {
  color: var(--accent-color);
}

.btn-primary-small {
  background-color: var(--accent-color);
  color: #000 !important;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  font-weight: 600;
  font-family: var(--font-heading);
}

.btn-primary-small:hover {
  background-color: var(--accent-hover);
  box-shadow: 0 2px 8px var(--accent-glow);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  background: transparent;
  border: none;
  cursor: pointer;
  z-index: 1001;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--text-primary);
  transition: var(--transition-normal);
}

.mobile-nav-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: var(--bg-color);
  z-index: 999;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 2rem;
  transform: translateY(-100%);
  transition: transform 0.4s ease-in-out;
}

.mobile-nav-overlay.active {
  transform: translateY(0);
}

.mobile-nav-overlay a {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-secondary);
}

.mobile-nav-overlay a:hover {
  color: var(--accent-color);
}

/* ================== HERO SECTION ================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: 60px; /* Accounts for navbar */
  overflow: hidden;
}

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

.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.15;
  animation: float 20s ease-in-out infinite alternate;
}

.blob-1 {
  top: -10%;
  right: -5%;
  width: 500px;
  height: 500px;
  background: var(--accent-color);
  animation-delay: 0s;
}

.blob-2 {
  bottom: -10%;
  left: -10%;
  width: 600px;
  height: 600px;
  background: #39FF14; /* Lime accent */
  animation-delay: -5s;
}

.noise-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
  opacity: 0.03;
  mix-blend-mode: overlay;
}

@keyframes float {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(50px, 30px) scale(1.1); }
  100% { transform: translate(-30px, 50px) scale(0.9); }
}

.hero-content {
  display: flex;
  flex-direction: column;
  z-index: 1;
}

.profile-img-container {
  margin-bottom: 2rem;
}

.profile-img {
  width: 110px;
  height: 110px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center top;
  border: 2px solid var(--accent-color);
  box-shadow: 0 0 20px var(--accent-glow);
}

.hero-title {
  font-size: clamp(3rem, 8vw, 5rem);
  letter-spacing: -0.05em;
  margin-bottom: 0.5rem;
}

.hero-subtitle {
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: 1.5rem;
}

.hero-description {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin-bottom: 2.5rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  opacity: 0.7;
}

.mouse {
  width: 26px;
  height: 40px;
  border: 2px solid var(--text-secondary);
  border-radius: 14px;
  display: flex;
  justify-content: center;
  padding-top: 6px;
}

.wheel {
  width: 4px;
  height: 8px;
  background-color: var(--text-secondary);
  border-radius: 2px;
  animation: scroll 1.5s infinite;
}

@keyframes scroll {
  0% { transform: translateY(0); opacity: 1; }
  100% { transform: translateY(12px); opacity: 0; }
}

/* ================== ABOUT SECTION ================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-text .lead {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
  font-family: var(--font-heading);
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  font-size: 1.05rem;
}

.about-journey {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 2rem;
  padding: 1rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-family: var(--font-heading);
  font-weight: 500;
}

.journey-node {
  color: var(--text-secondary);
}

.journey-node.highlight {
  color: var(--accent-color);
}

.about-journey svg {
  color: var(--text-muted);
}

.visual-timeline {
  position: relative;
  padding-left: 2rem;
}

.visual-timeline::before {
  content: '';
  position: absolute;
  top: 0;
  left: 7px;
  height: 100%;
  width: 2px;
  background-color: var(--border-color);
}

.timeline-item {
  position: relative;
  margin-bottom: 2rem;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: -2rem;
  top: 0.35rem;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background-color: var(--bg-surface);
  border: 2px solid var(--text-secondary);
  z-index: 1;
  transition: var(--transition-fast);
}

.timeline-item.active .timeline-dot {
  background-color: var(--bg-color);
  border-color: var(--accent-color);
  box-shadow: 0 0 10px var(--accent-glow);
}

.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.timeline-content {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
}

/* ================== SKILLS SECTION ================== */
.skills-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.skill-category {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2rem;
  transition: var(--transition-normal);
}

.skill-category:hover {
  border-color: #484f58;
  transform: translateY(-5px);
}

.skill-category.highlight-border {
  border: 1px solid rgba(0, 212, 255, 0.3);
  background: linear-gradient(180deg, rgba(0, 212, 255, 0.03) 0%, var(--bg-surface) 100%);
}

.skill-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.skill-header h3 {
  font-size: 1.3rem;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.skill-tag {
  background-color: var(--bg-surface-elevated);
  color: var(--text-secondary);
  padding: 0.5rem 1rem;
  border-radius: 6px;
  font-size: 0.9rem;
  font-family: var(--font-mono);
  border: 1px solid var(--border-color);
  transition: var(--transition-fast);
}

.skill-tag:hover {
  color: var(--text-primary);
  border-color: var(--text-secondary);
}

.skill-tag.premium {
  color: var(--accent-color);
  border-color: rgba(0, 212, 255, 0.2);
  background-color: rgba(0, 212, 255, 0.05);
}

.skill-tag.premium:hover {
  border-color: var(--accent-color);
  box-shadow: 0 0 10px var(--accent-glow);
}

/* ================== LANGUAGES ROW ================== */
.languages-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

.lang-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 0.6rem 1.2rem;
}

.lang-name {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.lang-level {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 0.2rem 0.6rem;
  border-radius: 20px;
}

.lang-level.native {
  background: rgba(57, 255, 20, 0.1);
  color: #39FF14;
  border: 1px solid rgba(57, 255, 20, 0.2);
}

.lang-level.c1 {
  background: rgba(0, 212, 255, 0.1);
  color: var(--accent-color);
  border: 1px solid rgba(0, 212, 255, 0.2);
}

.lang-level.b2 {
  background: rgba(255, 165, 0, 0.1);
  color: #FFA500;
  border: 1px solid rgba(255, 165, 0, 0.2);
}

/* ================== PROJECTS SECTION ================== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2rem;
}

.project-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  transition: var(--transition-normal);
  height: 100%;
}

.project-card:hover {
  transform: translateY(-8px);
  border-color: #484f58;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
}

.premium-card {
  border: 1px solid rgba(0, 212, 255, 0.3);
  background: linear-gradient(145deg, var(--bg-surface) 0%, #1a2230 100%);
  position: relative;
  overflow: hidden;
}

.premium-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-color), transparent);
}

.premium-card:hover {
  border-color: var(--accent-color);
  box-shadow: 0 12px 30px var(--accent-glow);
}

.card-icon {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
}

.project-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.project-tag.highlight {
  color: var(--accent-color);
}

.project-title {
  font-size: 1.4rem;
  margin-bottom: 1rem;
}

.project-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.project-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.project-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.95rem;
  font-weight: 500;
  font-family: var(--font-heading);
}

.project-link svg {
  transition: transform 0.2s;
}

.project-link:hover svg {
  transform: translate(2px, -2px) scale(1.1);
}

.project-link.coming-soon {
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  background: var(--bg-surface-elevated);
  border: 1px dashed var(--border-color);
  padding: 0.3rem 0.75rem;
  border-radius: 20px;
  cursor: default;
  display: inline-block;
}

/* ================== CHAT MOCKUP ================== */
.chat-mockup {
  border: 1px solid var(--border-color);
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 1.5rem;
  font-size: 0.82rem;
}

.chat-header {
  background: var(--bg-surface-elevated);
  padding: 0.5rem 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
}

.chat-dot {
  width: 7px;
  height: 7px;
  background: #39FF14;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
  box-shadow: 0 0 6px rgba(57, 255, 20, 0.5);
}

.chat-body {
  padding: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  background: var(--bg-color);
}

.chat-msg {
  max-width: 82%;
  padding: 0.45rem 0.7rem;
  border-radius: 12px;
  line-height: 1.45;
  color: var(--text-secondary);
}

.chat-msg.bot {
  background: var(--bg-surface-elevated);
  align-self: flex-start;
  border-bottom-left-radius: 3px;
}

.chat-msg.user {
  background: rgba(0, 212, 255, 0.08);
  border: 1px solid rgba(0, 212, 255, 0.15);
  align-self: flex-end;
  border-bottom-right-radius: 3px;
  color: var(--text-primary);
}

.chat-date-sep {
  text-align: center;
  font-size: 0.68rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  margin: 0.4rem 0;
}

.audio-msg {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  max-width: 82%;
}

.play-btn {
  font-size: 0.65rem;
  opacity: 0.7;
  flex-shrink: 0;
}

.waveform {
  display: flex;
  align-items: center;
  gap: 2px;
  flex: 1;
}

.waveform span {
  display: block;
  width: 2px;
  background: currentColor;
  border-radius: 1px;
  opacity: 0.5;
}

.audio-duration {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  opacity: 0.6;
  flex-shrink: 0;
}

.link-note {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* ================== EXPERIENCE SECTION ================== */
.two-column-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 4rem;
}

.timeline {
  position: relative;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 10px;
  left: 0;
  bottom: 0;
  width: 2px;
  background: var(--border-color);
}

.timeline-entry {
  position: relative;
  padding-left: 2.5rem;
  margin-bottom: 3rem;
}

.timeline-entry:last-child {
  margin-bottom: 0;
}

.timeline-marker {
  position: absolute;
  top: 6px;
  left: -5px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--bg-color);
  border: 2px solid var(--text-secondary);
  z-index: 1;
}

.main-entry .timeline-marker {
  border-color: var(--accent-color);
  box-shadow: 0 0 8px var(--accent-glow);
}

.timeline-meta {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.timeline-content h3 {
  font-size: 1.4rem;
  margin-bottom: 1rem;
}

.timeline-content p {
  color: var(--text-secondary);
  font-size: 1rem;
}

.sub-roles {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.sub-role h4 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.sub-role h4 span {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: normal;
  color: var(--text-muted);
  margin-left: 0.5rem;
}

.sub-role ul {
  list-style-type: none;
  padding-left: 1rem;
}

.sub-role li {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
  position: relative;
}

.sub-role li::before {
  content: '•';
  color: var(--accent-color);
  position: absolute;
  left: -1rem;
}

/* ================== EDUCATION SECTION ================== */
.edu-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.edu-icon {
  width: 48px;
  height: 48px;
  background: rgba(0, 212, 255, 0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.edu-content h3 {
  font-size: 1.2rem;
  margin-bottom: 0.25rem;
}

.edu-content h4 {
  font-size: 0.95rem;
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: 1rem;
}

.edu-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}

.edu-highlight {
  padding: 1rem;
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.05) 0%, rgba(57, 255, 20, 0.05) 100%);
  border-left: 3px solid var(--accent-color);
  border-radius: 0 8px 8px 0;
  font-size: 0.9rem;
  color: var(--text-primary);
}

/* ================== FOOTER / CONTACT ================== */
.contact {
  background: linear-gradient(180deg, var(--bg-color) 0%, #080a0e 100%);
  border-top: 1px solid var(--border-color);
  text-align: center;
  padding-bottom: 2rem;
}

.contact-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  margin-bottom: 1rem;
}

.contact-subtitle {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 3rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  margin-bottom: 3rem;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 1.1rem;
  color: var(--text-primary);
  padding: 0.5rem 1rem;
  border-radius: 8px;
  transition: var(--transition-fast);
}

.contact-item:hover {
  background: var(--bg-surface);
}

.contact-icon {
  font-size: 1.5rem;
}

.contact-actions {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 5rem;
  flex-wrap: wrap;
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 2rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ================== RESPONSIVE MEDIA QUERIES ================== */
@media (max-width: 992px) {
  .two-column-layout {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  
  .menu-toggle {
    display: flex;
  }
  
  .menu-toggle.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }
  
  .menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .menu-toggle.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .visual-timeline {
    padding-left: 2rem;
    margin-top: 1rem;
  }

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

  .projects-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  
  .hero-actions .btn {
    width: 100%;
  }
  
  .contact-actions {
    flex-direction: column;
  }
  
  .contact-actions .btn {
    width: 100%;
  }
  
  .section {
    padding: 4rem 0;
  }
}