/* assets/styles.css */

/* --- MATERIAL 3 TOKENS & PALETTE --- */
:root {
  --md-primary: #D0BCFF;
  --md-primary-rgb: 208, 188, 255;
  --md-on-primary: #381E72;
  --md-primary-container: #4F378B;
  --md-on-primary-container: #EADDFF;
  --md-secondary: #CCC2DC;
  --md-secondary-container: #4A4458;
  --md-on-secondary-container: #E8DEF8;
  --md-tertiary: #EFB8C8;
  --md-tertiary-container: #633B48;
  --md-on-tertiary-container: #FFD8E4;
  --md-surface: #121212;
  --md-surface-dim: #0F0F0F;
  --md-surface-bright: #1E1E1E;
  --md-on-surface: #E6E1E5;
  --md-on-surface-variant: #CAC4D0;
  --md-outline: #938F99;
  --md-outline-variant: #49454F;
  --shape-s: 8px;
  --shape-m: 12px;
  --shape-l: 16px;
  --shape-xl: 28px;
  --shape-pill: 999px;
  --ease-spring: cubic-bezier(0.175, 0.885, 0.32, 1.275);
  --ease-standard: cubic-bezier(0.2, 0, 0, 1);
  --anim-entry: fade-in-up 0.8s var(--ease-spring) forwards;
  --nav-bg: rgba(30, 30, 30, 0.6);
  --panel-bg: rgba(30, 30, 30, 0.4);
}

[data-theme="light"] {
  --md-primary: #D6CBFF;
  --md-primary-rgb: 214, 203, 255;
  --md-on-primary: #2F225E;
  --md-primary-container: #ECE4FF;
  --md-on-primary-container: #3B2F75;
  --md-secondary: #D7D0EB;
  --md-secondary-container: #ECE8F7;
  --md-on-secondary-container: #3F3551;
  --md-tertiary: #F8CDE1;
  --md-tertiary-container: #FBE3EE;
  --md-on-tertiary-container: #5D2E3C;
  --md-surface: #FBFAFF;
  --md-surface-dim: #F4F2FB;
  --md-surface-bright: #FFFFFF;
  --md-on-surface: #1B1B1F;
  --md-on-surface-variant: #4D4D57;
  --md-outline: #C0BCD8;
  --md-outline-variant: #E0DDEF;
  --nav-bg: rgba(255, 255, 255, 0.7);
  --panel-bg: rgba(255, 255, 255, 0.65);
  --anim-entry: fade-in-float 0.75s var(--ease-spring) forwards;
}

.section-resume { --section-secondary: #FFD54F; }
.section-science { --section-secondary: #7BD88F; }
.section-projects { --section-secondary: #FFB74D; }
.section-activities { --section-secondary: #80CBC4; }
.section-home { --section-secondary: #D0BCFF; }
[data-theme="dark"] .section-home { --section-primary: #7E57C2; --section-on-primary: #FFFFFF; --section-secondary: #B39DDB; --section-on-secondary: #1B1B1F; }
[data-theme="dark"] .section-resume { --section-primary: #FFB300; --section-on-primary: #1B1B1F; --section-secondary: #FFE082; --section-on-secondary: #1B1B1F; }
[data-theme="dark"] .section-science { --section-primary: #43A047; --section-on-primary: #FFFFFF; --section-secondary: #A5D6A7; --section-on-secondary: #1B1B1F; }
[data-theme="dark"] .section-projects { --section-primary: #EF6C00; --section-on-primary: #FFFFFF; --section-secondary: #FFB74D; --section-on-secondary: #1B1B1F; }
[data-theme="dark"] .section-activities { --section-primary: #C51162; --section-on-primary: #FFFFFF; --section-secondary: #FF80AB; --section-on-secondary: #1B1B1F; }

[data-theme="light"] .section-home { --section-primary: #4527A0; --section-on-primary: #FFFFFF; --section-secondary: #D1C4E9; --section-on-secondary: #1B1B1F; }
[data-theme="light"] .section-resume { --section-primary: #FFB300; --section-on-primary: #1B1B1F; --section-secondary: #FFE082; --section-on-secondary: #1B1B1F; }
[data-theme="light"] .section-science { --section-primary: #2E7D32; --section-on-primary: #FFFFFF; --section-secondary: #A5D6A7; --section-on-secondary: #1B1B1F; }
[data-theme="light"] .section-projects { --section-primary: #EF6C00; --section-on-primary: #FFFFFF; --section-secondary: #FFB74D; --section-on-secondary: #1B1B1F; }
[data-theme="light"] .section-activities { --section-primary: #C51162; --section-on-primary: #FFFFFF; --section-secondary: #FF80AB; --section-on-secondary: #1B1B1F; }

.section-resume { --anim-entry: fade-in-float 0.7s var(--ease-spring) forwards; }
.section-science { --anim-entry: fade-in-rise 0.75s var(--ease-spring) forwards; }
.section-projects { --anim-entry: fade-in-zoom 0.7s var(--ease-spring) forwards; }
.section-activities { --anim-entry: fade-in-slide 0.75s var(--ease-spring) forwards; }

/* --- RESET & BASE --- */
* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background-color: var(--md-surface);
  color: var(--md-on-surface);
  transition: background-color 0.4s ease, color 0.4s ease;
  overflow-x: visible;
  min-height: 100vh;
  position: relative;
  --anim-entry: var(--anim-entry);
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; padding: 0; margin: 0; }
h1, h2, h3, h4, p { margin: 0; }

.container {
  width: min(1200px, 92%);
  margin: 0 auto;
  padding: 2rem 0 6rem;
}

/* --- HEADER --- */
.site-header {
  position: sticky; top: 1rem; z-index: 1000;
  width: min(900px, 94%); margin: 0 auto;
  background: var(--nav-bg);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--shape-pill);
  padding: 0.75rem 1.5rem;
  /* Centered since Brand is hidden */
  display: flex; align-items: center; justify-content: center; 
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.2);
  transition: all 0.3s ease;
}
 .site-header.nav-mobile {
   background: transparent;
   backdrop-filter: none; -webkit-backdrop-filter: none;
   border: none;
   box-shadow: none;
   width: 100%;
   border-radius: 0;
   padding: 0.5rem 0.75rem;
   justify-content: space-between;
 }
 .site-header.nav-mobile .mobile-toggle {
   display: grid;
   place-items: center;
   width: 48px;
   height: 48px;
   border-radius: 50%;
   background: var(--section-primary);
   color: var(--section-on-primary);
   box-shadow: 0 8px 24px rgba(0,0,0,0.28);
 }
 .site-header.nav-mobile .actions {
   display: inline-flex;
   gap: 8px;
   background: var(--section-secondary);
   color: var(--section-on-secondary);
   border-radius: 999px;
   padding: 6px 10px;
   box-shadow: 0 8px 24px rgba(0,0,0,0.18);
 }
 .site-header.nav-mobile .actions .icon-btn { color: var(--section-on-secondary); }
 .site-header.nav-mobile.nav-enter .mobile-toggle { animation: split-bounce-left 500ms var(--ease-spring); }
 .site-header.nav-mobile.nav-enter .actions { animation: split-bounce-right 500ms var(--ease-spring); }

@keyframes split-bounce-left {
  0% { transform: translateY(-8px) scale(0.9); opacity: 0; }
  50% { transform: translateY(6px) scale(1.08); opacity: 1; }
  100% { transform: translateY(0) scale(1); opacity: 1; }
}
@keyframes split-bounce-right {
  0% { transform: translateY(-8px) scale(0.95); opacity: 0; }
  50% { transform: translateY(6px) scale(1.06); opacity: 1; }
  100% { transform: translateY(0) scale(1); opacity: 1; }
}

.brand-logo {
  display: none; /* Hidden per request */
}

.site-nav { display: flex; align-items: center; gap: 0.5rem; width: 100%; justify-content: space-between; }
.nav-list { display: flex; gap: 4px; margin: 0 auto; } /* Centered nav list */

.nav-link {
  padding: 0.6rem 1.2rem; border-radius: var(--shape-pill);
  font-size: 0.9rem; font-weight: 600; color: var(--md-on-surface-variant);
  transition: all 0.3s var(--ease-spring);
  position: relative; overflow: hidden;
}
/* Remove bottom indicator */
.nav-link::after { content: none; }
.nav-link:hover::after { content: none; }
/* Hover Blob Effect */
.nav-link::before {
  content: ''; position: absolute; top: 50%; left: 50%; width: 0; height: 0;
  background: var(--section-secondary, var(--md-secondary-container)); border-radius: 50%;
  transform: translate(-50%, -50%); transition: width 0.4s ease, height 0.4s ease;
  z-index: -1;
}
.nav-link:hover::before { width: 120%; height: 120%; }
.nav-link:hover { color: var(--section-on-secondary, var(--md-on-secondary-container)); transform: translateY(-2px); }

/* Selected Nav Link - Reduced Shadow */
.nav-link[aria-current="page"] {
  background-color: var(--section-primary, var(--md-primary)); color: var(--section-on-primary, var(--md-on-primary));
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2); 
}
.nav-link[aria-current="page"]::after { content: none; }
.nav-link[aria-current="page"]::before { content: none; }

.actions { display: flex; gap: 8px; margin-left: 12px; padding-left: 12px; border-left: 1px solid var(--md-outline-variant); }
.icon-btn {
  background: transparent; border: none; cursor: pointer; padding: 8px; border-radius: 50%;
  color: var(--md-on-surface-variant); transition: transform 0.4s var(--ease-spring), background 0.2s;
  font-size: 1.1rem; display: grid; place-items: center;
}
.icon-btn:hover { background: var(--md-secondary-container); transform: rotate(15deg) scale(1.1); }
.lang-btn { font-size: 0.8rem; font-weight: 700; width: auto; padding: 0 12px; border-radius: 8px; }

/* --- PROFILE / HOME LAYOUT --- */
.profile-container {
  display: grid; grid-template-columns: 1fr 1.5fr; gap: 4rem;
  align-items: center; margin-top: 3rem; animation: var(--anim-entry);
}
.profile-card-wrapper { position: relative; z-index: 1; }
.profile-bg-blob {
  position: absolute; top: 50%; left: 50%;
  width: 110%; height: 110%;
  background: linear-gradient(45deg, var(--md-primary), var(--md-tertiary));
  transform: translate(-50%, -50%);
  border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%;
  animation: morph 8s ease-in-out infinite;
  z-index: -1; opacity: 0.3;
}

.profile-card {
  text-align: center; padding: 3rem 2rem;
  background: var(--panel-bg);
  backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--shape-xl);
  box-shadow: 0 15px 35px rgba(0,0,0,0.2);
  transition: transform 0.4s var(--ease-spring);
  will-change: transform;
}
.profile-card:hover { transform: translateY(-10px) rotate(1deg); }

.profile-img {
  width: 180px; height: 180px; object-fit: cover;
  border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%;
  border: 4px solid var(--md-surface);
  box-shadow: 0 10px 20px rgba(0,0,0,0.2);
  margin-bottom: 1.5rem;
  animation: morph-img 10s ease-in-out infinite;
}

.profile-name {
  font-size: 2.5rem; font-weight: 800; margin-bottom: 0.5rem;
  color: var(--section-primary, var(--md-on-surface));
}
.profile-role { font-size: 1.2rem; color: var(--md-on-surface); font-weight: 600; margin-bottom: 0.5rem; }
.profile-inst { font-size: 0.95rem; color: var(--md-on-surface-variant); margin-bottom: 1rem; text-transform: uppercase; letter-spacing: 1px; }
.profile-email { margin-bottom: 2rem; font-size: 0.95rem; }
.profile-email a { color: var(--md-primary); text-decoration: underline; text-underline-offset: 4px; transition: color 0.2s; }
.profile-email a:hover { color: var(--md-on-primary-container); }

.social-links { display: flex; gap: 1rem; justify-content: center; }
.social-btn {
  display: inline-flex; align-items: center; gap: 8px; padding: 10px 20px;
  border-radius: var(--shape-pill); background: var(--md-surface-bright);
  border: 1px solid var(--md-outline-variant); color: var(--md-on-surface);
  font-weight: 600; transition: all 0.3s var(--ease-spring);
}
.social-btn:hover {
  background: var(--md-primary); color: var(--md-on-primary);
  border-color: transparent; transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(var(--md-primary), 0.4);
}

/* Bio & Interests */
.bio-section h2 { font-size: 1.8rem; margin-bottom: 1.5rem; color: var(--md-on-surface); font-weight: 800; }
.bio-text { font-size: 1.15rem; line-height: 1.7; color: var(--md-on-surface-variant); margin-bottom: 3rem; }

.interests-area h3 { font-size: 1rem; margin-bottom: 1rem; text-transform: uppercase; letter-spacing: 1px; color: var(--md-outline); font-weight: 700; }
.interest-chips { display: flex; flex-wrap: wrap; gap: 12px; }
.interest-pill {
  padding: 10px 20px;
  background: var(--md-surface-bright);
  border: 2px solid var(--md-primary-container);
  color: var(--md-primary);
  border-radius: 12px 24px 12px 24px;
  font-weight: 700; font-size: 0.95rem;
  transition: all 0.3s var(--ease-spring);
  cursor: default;
}
.interest-pill:hover {
  background: var(--md-primary); color: var(--md-on-primary); border-color: var(--md-primary);
  border-radius: 24px 12px 24px 12px; transform: scale(1.05) rotate(-2deg);
}

/* Light theme contrast fixes for Home */
[data-theme="light"] .section-home .profile-email a {
  color: var(--section-primary);
  font-weight: 700;
  text-decoration-color: var(--section-primary);
  text-decoration-thickness: 2px;
}
[data-theme="light"] .section-home .profile-email a:hover {
  color: var(--section-on-primary);
  background: var(--section-primary);
  border-radius: 6px;
}

[data-theme="light"] .section-home .interest-pill {
  background: var(--md-surface);
  border-color: var(--section-primary);
  color: var(--section-primary);
}
[data-theme="light"] .section-home .interest-pill:hover {
  background: var(--section-primary);
  color: var(--section-on-primary);
  border-color: var(--section-primary);
}

/* --- HERO --- */
.hero { text-align: center; padding: 3rem 1rem 2rem; max-width: 900px; margin: 0 auto; animation: var(--anim-entry); }
.hero h1 {
  font-size: clamp(1.5rem, 3.2vw, 2.2rem);
  line-height: 1.15; font-weight: 900; margin-bottom: 0.75rem;
  color: var(--md-on-surface);
  letter-spacing: -1px;
}
.hero p { font-size: 1.25rem; line-height: 1.6; color: var(--md-on-surface-variant); max-width: 60ch; margin: 0 auto; }

/* --- CARDS (Generic) --- */
.cards-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 2rem; padding: 1rem 0; }
.card {
  position: relative; background: var(--md-surface-bright); padding: 2rem; border-radius: var(--shape-xl);
  border: 1px solid rgba(255, 255, 255, 0.05);
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
  
  /* FLEX UPDATE FOR SPACING */
  display: flex; 
  flex-direction: column; 
  height: 100%;
  
  transition: all 0.4s var(--ease-spring);
  opacity: 0; animation: var(--card-anim, var(--anim-entry)); animation-delay: calc(var(--delay, 0) * 100ms);
  overflow: hidden; isolation: isolate;
  will-change: transform, opacity;
}
.card::before {
  content: ''; position: absolute; z-index: -1; top: -50px; right: -50px; width: 150px; height: 150px;
  background: linear-gradient(135deg, var(--section-primary, var(--md-primary)), var(--section-secondary));
  border-radius: 50%; opacity: 0.3; transition: 0.5s var(--ease-spring);
}
.card:hover { transform: translateY(-10px); border-color: var(--md-primary-container); box-shadow: 0 20px 40px rgba(0,0,0,0.3); }
.card:hover::before { transform: scale(3); opacity: 0.15; }

/* --- SCIENCE CARD SPECIFIC --- */
.card-category {
  align-self: flex-start;
  font-size: 0.75rem; font-weight: 800; text-transform: uppercase; letter-spacing: 1px;
  color: var(--section-primary, var(--md-primary)); margin-bottom: 0.5rem;
}
.card-venue {
  font-size: 0.9rem; font-weight: 600; color: var(--md-secondary);
  margin-bottom: 0.5rem; text-transform: uppercase;
}
.card-title {
  font-size: 1.4rem; font-weight: 700; margin-bottom: 0.75rem; line-height: 1.3;
  color: var(--md-on-surface);
}
/* Section card title contrast */
[data-theme="dark"] .section-science .card-title,
[data-theme="dark"] .section-projects .card-title,
[data-theme="dark"] .section-activities .card-title { color: #FFFFFF; }
[data-theme="light"] .section-science .card-title,
[data-theme="light"] .section-projects .card-title,
[data-theme="light"] .section-activities .card-title { color: #000000; }
.card-desc {
  font-size: 0.95rem; line-height: 1.6; color: var(--md-on-surface-variant);
  margin-bottom: 0.85rem;
}
/* Section card meta contrast */
.section-science .card-venue,
.section-science .card-year,
.section-science .card-desc,
.section-science .card-context,
.section-projects .card-context,
.section-projects .card-year,
.section-projects .card-desc,
.section-activities .card-context,
.section-activities .card-year,
.section-activities .card-desc { color: var(--md-on-surface); }
.card-authors {
  font-size: 0.95rem; color: var(--md-on-surface-variant); font-style: italic;
  margin-bottom: 1.5rem;
}
.card-year {
  margin-top: auto; /* Pushes to bottom */
  font-size: 0.9rem; font-weight: 800; color: var(--md-outline);
}

/* --- PROJECT SPECIFIC --- */
.card-tech {
  font-size: 0.85rem; font-family: monospace; color: var(--md-secondary); margin-bottom: 0.5rem;
}
.card-type {
  align-self: flex-start; font-size: 0.75rem; font-weight: 800; text-transform: uppercase; letter-spacing: 1px;
  color: var(--section-primary, var(--md-primary)); margin-bottom: 0.5rem;
}

.divider { height: 1px; background: var(--md-outline-variant); margin: 0.75rem 0; }
.chip-list { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 0.75rem; }
.skill-chip {
  padding: 4px 10px; border-radius: var(--shape-pill);
  background: var(--md-surface); border: 1px solid var(--md-outline-variant);
  color: var(--md-on-surface-variant); font-size: 0.7rem; font-weight: 600;
  transition: all 0.3s var(--ease-spring);
}
.skill-chip:hover { transform: translateY(-2px); border-color: var(--md-primary); color: var(--md-primary); }
.card-footer { display: flex; align-items: center; justify-content: space-between; margin-top: auto; gap: 1rem; }
.card-link { color: var(--section-primary, var(--md-primary)); font-weight: 700; text-decoration: underline; text-underline-offset: 4px; }

/* --- ACTIVITY SPECIFIC --- */
.card-role {
  align-self: flex-start; font-size: 0.75rem; font-weight: 800; text-transform: uppercase; letter-spacing: 1px;
  color: var(--section-primary, var(--md-primary)); margin-bottom: 0.5rem;
}
.card-context {
  font-size: 0.9rem; font-weight: 600; color: var(--md-outline); margin-bottom: 0.5rem;
}

.code-note {
  margin-top: 1.5rem; padding-top: 1rem; border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 0.85rem; font-family: monospace; color: var(--md-tertiary);
  display: flex; align-items: center; gap: 6px;
}
.code-note::before { content: '›'; font-weight: bold; }

/* --- TIMELINE --- */
.timeline { max-width: 800px; margin: 0 auto; position: relative; padding-left: 2rem; }
.timeline::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: var(--md-outline-variant); border-radius: 2px; }
.timeline-item { position: relative; margin-bottom: 3rem; animation: var(--anim-entry); animation-delay: calc(var(--delay, 0) * 150ms); }
.timeline-dot {
  position: absolute; left: -2.6rem; top: 0.2rem;
  width: 20px; height: 20px; border-radius: 50%;
  background: var(--section-primary, var(--md-primary));
  border: 4px solid var(--md-surface); box-shadow: 0 0 0 2px var(--section-primary, var(--md-primary));
}
.timeline-date { font-size: 0.85rem; font-weight: 800; color: var(--section-primary, var(--md-primary)); text-transform: uppercase; margin-bottom: 0.5rem; display: block; }

.year-chip { display: inline-flex; align-items: center; padding: 4px 10px; border-radius: var(--shape-pill); background: var(--md-surface); border: 1px solid var(--md-outline-variant); color: var(--md-on-surface-variant); font-size: 0.75rem; font-weight: 700; }

/* --- RESUME CARDS - MATERIAL DESIGN 3 --- */
.resume-card {
  background: var(--md-surface-bright); padding: 2rem; border-radius: var(--shape-xl); border: 1px solid var(--md-outline-variant); box-shadow: 0 6px 16px rgba(0,0,0,0.2); transition: all 0.25s var(--ease-standard); position: relative; overflow: hidden; transform-origin: center; }



.resume-card:hover { transform: translateY(-4px) scale(1.01); box-shadow: 0 10px 24px rgba(0,0,0,0.28); }

.resume-card-header {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1rem;
}

.resume-card-icon {
  line-height: 1;
  animation: float 3s ease-in-out infinite;
  filter: drop-shadow(0 4px 8px rgba(0,0,0,0.2));
}

.resume-card-icon svg { width: 36px; height: 36px; fill: currentColor; color: var(--section-primary, var(--md-primary)); }

@keyframes float {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-8px) rotate(5deg); }
}

.resume-card-info {
  flex: 1;
}

.resume-card-position { color: var(--md-on-surface); margin: 0 0 0.25rem; font-size: 1.4rem; font-weight: 700; line-height: 1.2; }

.resume-card-department {
  color: var(--section-secondary);
  margin: 0 0 0.25rem;
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.resume-card-university {
  color: var(--md-secondary);
  margin: 0;
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
}

.resume-card-description { color: var(--md-on-surface-variant); margin: 1rem 0 0; font-size: 0.95rem; line-height: 1.6; padding: 1rem; background: var(--md-surface); border-radius: var(--shape-m); border-left: none; border: 1px solid var(--md-outline-variant); }

/* --- NESTED CHILDREN CARDS --- */
.resume-card-children {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--md-outline-variant);
}

.resume-card-toggle { background: transparent; border: none; padding: 0.4rem 0; color: var(--md-primary); font-weight: 600; cursor: pointer; transition: color 0.2s var(--ease-standard); display: inline-flex; align-items: center; gap: 0.4rem; }

.resume-card-toggle:hover { color: var(--md-on-primary-container); }

.toggle-icon { transition: transform 0.2s var(--ease-standard); font-size: 0.85rem; }

.resume-children-container {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.5s var(--ease-spring);
  margin-top: 1rem;
}

.resume-children-container.expanded {
  grid-template-rows: 1fr;
}

.resume-children-container > * {
  min-height: 0;
}

.resume-child-card {
  background: var(--md-surface);
  border-radius: 20px;
  padding: 1.5rem;
  margin: 0.75rem 0;
  border: 1px solid var(--md-outline-variant);
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  transition: all 0.3s var(--ease-spring);
  position: relative;
  overflow: hidden;
}



.resume-child-card:hover {
  transform: translateX(8px) scale(1.02);
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}

.resume-child-card-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.resume-child-card-date {
  color: var(--section-primary, var(--md-primary));
  font-weight: 700;
  font-size: 0.85rem;
  background: transparent;
  padding: 0.25rem 0.75rem;
  border-radius: 12px;
  border: 1px solid var(--section-primary, var(--md-primary));
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  line-height: 1;
}

.resume-child-card-position {
  color: var(--md-on-surface);
  margin: 0;
  font-size: 1.1rem;
  font-weight: 700;
  flex: 1;
}

.resume-child-card-department {
  color: var(--section-secondary);
  margin: 0 0 0.25rem;
  font-size: 0.85rem;
  font-weight: 800;
  padding-left: 1rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.resume-child-card-university {
  color: var(--md-secondary);
  margin: 0 0 0.5rem;
  font-size: 0.9rem;
  font-weight: 600;
  padding-left: 1rem;
  text-transform: uppercase;
}

.resume-child-card-description {
  color: var(--md-on-surface-variant);
  margin: 0;
  font-size: 0.85rem;
  line-height: 1.5;
  padding-left: 1rem;
  border-left: 2px solid var(--md-outline-variant);
}

@media (max-width: 420px) {
  .timeline { padding-left: 1rem; }
  .timeline::before { left: 0; width: 3px; }
  .timeline-dot { left: -1.8rem; }
  .timeline-date { font-size: 0.8rem; margin-bottom: 0.5rem; }
  .resume-card { padding: 1.25rem; }
  .resume-card-position { font-size: 1.2rem; }
  .resume-child-card-date { padding: 0.2rem 0.6rem; font-size: clamp(0.74rem, 2.6vw, 0.82rem); }
  .resume-child-card-header { flex-wrap: wrap; }
  .resume-child-card-date { flex: 0 0 auto; }
  .resume-child-card-position { flex-basis: 100%; width: 100%; min-width: 0; }
}

@media (max-width: 360px) {
  .resume-child-card-header { flex-direction: column; align-items: flex-start; gap: 0.35rem; }
  .resume-child-card-date { margin-bottom: 0.25rem; padding: 0.18rem 0.55rem; font-size: clamp(0.7rem, 3vw, 0.8rem); }
  .resume-child-card-position { font-size: 1rem; }
  .resume-child-card-department, .resume-child-card-university { padding-left: 0; }
  .resume-child-card-description { padding-left: 0; border-left: none; }
}
/* Prominent project link button */
.child-project-link { display: inline-flex; align-items: center; gap: 6px; margin-top: 0.75rem; padding: 8px 14px; border-radius: var(--shape-pill); background: var(--section-primary, var(--md-primary)); color: var(--section-on-primary, var(--md-on-primary)); font-weight: 700; text-decoration: none; transition: transform 220ms var(--ease-spring), box-shadow 220ms var(--ease-spring); }
.child-project-link:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.3); }

/* --- ANIMATIONS --- */
.resume-card { opacity: 0; transform: translateY(24px); animation: slide-in-fun 0.6s var(--ease-standard) forwards; animation-delay: calc(var(--delay, 0) * 120ms); }

@keyframes slide-in-fun { 0% { opacity: 0; transform: translateY(24px); } 100% { opacity: 1; transform: translateY(0); } }

.resume-child-card {
  opacity: 0;
  transform: translateX(-20px) scale(0.95);
  animation: child-slide-in 0.6s var(--ease-spring) forwards;
  animation-delay: calc(var(--child-delay, 0) * 100ms);
}

@keyframes child-slide-in {
  0% {
    opacity: 0;
    transform: translateX(-20px) scale(0.95);
  }
  100% {
    opacity: 1;
    transform: translateX(0) scale(1);
  }
}

/* Organic shape variations */


/* --- LEGACY TIMELINE CARD SUPPORT --- */
.timeline-card {
  background: var(--md-surface-bright); padding: 1.5rem;
  border-radius: 0 20px 20px 20px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  transition: transform 0.3s;
}
.timeline-card h3 { color: var(--md-on-surface); margin: 0 0 0.5rem; font-size: 1.25rem;}
.timeline-card p { color: var(--md-on-surface-variant); margin: 0; }
.timeline-card:hover { transform: translateX(10px); background: var(--md-secondary-container); }

/* --- FILTERS --- */
.filters-container {
  position: relative;
  background: var(--panel-bg);
  color: var(--md-on-surface);
  backdrop-filter: blur(14px);
  border-radius: var(--shape-xl);
  padding: 1rem 1.25rem;
  margin-bottom: 2rem;
  display: flex; flex-direction: column; gap: 1rem; border: 1px solid var(--md-outline-variant);
  box-shadow: 0 8px 24px rgba(0,0,0,0.18);
}
@media(min-width: 768px) { .filters-container { flex-direction: row; justify-content: space-between; align-items: start; gap: 1.25rem; } }
.filter-label { font-size: 0.75rem; font-weight: 700; text-transform: uppercase; color: var(--md-outline); letter-spacing: 0.5px; margin-bottom: 0;}
.filter-label::before { content: ''; display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--section-primary); margin-right: 8px; vertical-align: middle; box-shadow: 0 1px 6px rgba(0,0,0,0.2); }
.filter-group { display: flex; flex-direction: column; gap: 0.6rem; }
.pill-list { display: flex; flex-wrap: wrap; gap: 6px; }
.filter-pill { position: relative; cursor: pointer; user-select: none; }
.filter-pill input { position: absolute; opacity: 0; width: 0; height: 0; }
.pill-content {
  display: inline-flex; align-items: center; justify-content: center; padding: 8px 16px; border-radius: var(--shape-pill);
  background: var(--md-surface); border: 1px solid var(--md-outline-variant); color: var(--md-on-surface-variant);
  font-size: 0.9rem; font-weight: 600; transition: all 0.25s var(--ease-standard);
}
.filter-pill:hover .pill-content { transform: translateY(-2px); border-color: var(--section-secondary); background: var(--md-surface-bright);} 

/* Selected Filter - Reduced Shadow */
.filter-pill input:checked + .pill-content {
  background: var(--section-primary); color: var(--section-on-primary); border-color: transparent;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
  transform: scale(1.03);
}
.pill-content:focus-visible { outline: 3px solid var(--md-primary-container); outline-offset: 2px; }
/* Disabled state */
.filter-pill.disabled .pill-content { opacity: 0.5; cursor: not-allowed; transform: none; }

/* --- MOBILE & ANIMATIONS --- */
.mobile-toggle { display: none; background: none; border: none; font-size: 1.5rem; color: var(--md-on-surface); cursor: pointer;}
@media (max-width: 850px) {
  .profile-container { grid-template-columns: 1fr; gap: 3rem; text-align: center; }
  .interest-chips { justify-content: center; }
  .nav-list {
    position: absolute; top: 120%; left: 0; right: 0;
    background: var(--md-surface-bright);
    border: 1px solid var(--md-outline-variant); border-radius: var(--shape-l);
    flex-direction: column; padding: 1rem; gap: 0.5rem;
    box-shadow: 0 10px 40px rgba(0,0,0,0.5);
    opacity: 0; visibility: hidden; transform: translateY(-10px);
    transition: all 0.3s var(--ease-spring);
  }
  .nav-list.open { opacity: 1; visibility: visible; transform: translateY(0); }
  .mobile-toggle { display: block; }
  .nav-link { width: 100%; text-align: center; }
.actions { border-left: none; margin-left: auto; }
}

@media (min-width: 851px) {
  .nav-list { position: static; opacity: 1; visibility: visible; transform: none; }
}

.home-fab {
  position: fixed; right: 20px; bottom: 20px; z-index: 1100;
  width: 56px; height: 56px; display: none; place-items: center;
  border-radius: var(--shape-l); background: var(--md-primary); color: var(--md-on-primary);
  border: none; box-shadow: 0 6px 16px rgba(0,0,0,0.24);
  transition: transform 0.2s var(--ease-spring), box-shadow 0.2s var(--ease-spring), background-color 0.2s var(--ease-standard), color 0.2s var(--ease-standard);
}
@media (max-width: 850px) { .home-fab { display: grid; } }
.home-fab svg { width: 24px; height: 24px; fill: currentColor; }
.home-fab:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(0,0,0,0.32); background: var(--md-primary-container); color: var(--md-on-primary-container); }
.home-fab:focus-visible { outline: 3px solid var(--md-primary-container); outline-offset: 2px; }
@media (max-width: 480px) { .home-fab { width: 48px; height: 48px; border-radius: var(--shape-m); } .home-fab svg { width: 20px; height: 20px; } }
@keyframes morph {
  0% { border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%; }
  50% { border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%; }
  100% { border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%; }
}
@keyframes morph-img {
  0% { border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%; transform: rotate(0deg); }
  50% { border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%; transform: rotate(2deg); }
  100% { border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%; transform: rotate(0deg); }
}
@keyframes fade-in-up {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
.cards-grid .card:nth-child(3n+1) { --card-anim: fade-in-rise 0.7s var(--ease-spring) forwards; }
.cards-grid .card:nth-child(3n+2) { --card-anim: fade-in-zoom 0.7s var(--ease-spring) forwards; }
.cards-grid .card:nth-child(3n) { --card-anim: fade-in-slide 0.7s var(--ease-spring) forwards; }
.section-science .card { --card-anim: fade-in-rise 0.75s var(--ease-spring) forwards; }
.section-resume .resume-card { animation: fade-in-float 0.6s var(--ease-standard) forwards; }
.card-blob { position: absolute; pointer-events: none; width: 200px; height: 200px; opacity: 0.14; filter: blur(26px); border-radius: 40% 60% 60% 40% / 50% 40% 60% 50%; animation: blob-drift 12s ease-in-out infinite; }
.blob-a { top: -40px; left: -40px; background: linear-gradient(45deg, var(--md-primary), var(--md-tertiary)); }
.blob-b { bottom: -50px; right: -50px; background: linear-gradient(45deg, var(--md-secondary), var(--md-primary-container)); border-radius: 60% 40% 50% 50% / 40% 60% 50% 60%; animation: blob-wobble 14s ease-in-out infinite; }
.blob-c { top: 30%; left: 60%; width: 160px; height: 160px; background: linear-gradient(60deg, var(--md-tertiary), var(--md-secondary-container)); border-radius: 50% 40% 60% 50% / 50% 60% 40% 50%; opacity: 0.12; animation: blob-pulse 16s ease-in-out infinite; }
.section-science .blob-c { animation: blob-orbit 18s var(--ease-spring) infinite; }
.section-projects .blob-b { animation: blob-wave 16s var(--ease-spring) infinite; }
.section-activities .blob-a { animation: blob-tilt 14s var(--ease-spring) infinite; }
.resume-card:hover .blob-a { transform: translate(12px, -8px) scale(1.05) rotate(2deg); opacity: 0.22; animation: blob-drift-fast 10s ease-in-out infinite; }
.resume-card:hover .blob-b { transform: translate(-10px, 8px) scale(1.03) rotate(-2deg); opacity: 0.2; animation: blob-wobble-fast 10s ease-in-out infinite; }
article.card:hover .blob-a { transform: translate(10px, -6px) scale(1.04); opacity: 0.2; animation: blob-drift-fast 10s ease-in-out infinite; }
article.card:hover .blob-b { transform: translate(-8px, 6px) scale(1.02); opacity: 0.18; animation: blob-wobble-fast 10s ease-in-out infinite; }
article.card:hover .blob-c { transform: translate(4px, -4px) scale(1.03); opacity: 0.18; animation: blob-pulse-fast 12s ease-in-out infinite; }
@keyframes blob-drift { 0% { transform: translate(0,0) } 50% { transform: translate(6px,-6px) } 100% { transform: translate(0,0) } }
@keyframes blob-drift-fast { 0% { transform: translate(12px,-8px) } 50% { transform: translate(-6px,6px) } 100% { transform: translate(12px,-8px) } }
@keyframes blob-wobble { 0% { transform: translate(0,0) rotate(0deg) } 50% { transform: translate(-6px,6px) rotate(2deg) } 100% { transform: translate(0,0) rotate(0deg) } }
@keyframes blob-wobble-fast { 0% { transform: translate(-10px,8px) rotate(-2deg) } 50% { transform: translate(6px,-6px) rotate(2deg) } 100% { transform: translate(-10px,8px) rotate(-2deg) } }
@keyframes blob-pulse { 0% { transform: scale(1) } 50% { transform: scale(1.06) } 100% { transform: scale(1) } }
@keyframes blob-pulse-fast { 0% { transform: scale(1.03) } 50% { transform: scale(1.08) } 100% { transform: scale(1.03) } }
@keyframes blob-orbit { 0% { transform: translate(0,0) rotate(0deg) } 50% { transform: translate(10px,-10px) rotate(3deg) } 100% { transform: translate(0,0) rotate(0deg) } }
@keyframes blob-wave { 0% { transform: translate(0,0) scale(1) } 50% { transform: translate(-8px,8px) scale(1.04) } 100% { transform: translate(0,0) scale(1) } }
@keyframes blob-tilt { 0% { transform: rotate(0deg) } 50% { transform: rotate(3deg) } 100% { transform: rotate(0deg) } }

@keyframes fade-in-rise { 0% { opacity: 0; transform: translateY(24px) scale(0.98) } 100% { opacity: 1; transform: translateY(0) scale(1) } }
@keyframes fade-in-zoom { 0% { opacity: 0; transform: scale(0.94) } 100% { opacity: 1; transform: scale(1) } }
@keyframes fade-in-slide { 0% { opacity: 0; transform: translateX(-20px) } 100% { opacity: 1; transform: translateX(0) } }
@keyframes fade-in-float { 0% { opacity: 0; transform: translateY(16px) } 100% { opacity: 1; transform: translateY(0) } }
.resume-card-header, .resume-card-description, .resume-card-children { position: relative; z-index: 1; }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}
.contact-card { max-width: 720px; margin: 0 auto; background: var(--md-surface-bright); border: 1px solid var(--md-outline-variant); border-radius: var(--shape-xl); box-shadow: 0 8px 24px rgba(0,0,0,0.2); padding: 1.5rem; }
.contact-form { display: grid; gap: 1rem; }
.form-field { position: relative; }
.form-field input, .form-field textarea { width: 100%; padding: 1rem 1rem 1rem; border-radius: var(--shape-l); border: 1px solid var(--md-outline-variant); background: var(--md-surface); color: var(--md-on-surface); font-size: 1rem; transition: border-color 0.2s var(--ease-standard), box-shadow 0.2s var(--ease-standard); }
.form-field label { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); background: transparent; padding: 0 6px; color: var(--md-on-surface-variant); transition: all 0.2s var(--ease-standard); pointer-events: none; }
.form-field input:focus, .form-field textarea:focus { outline: none; border-color: var(--md-primary); box-shadow: 0 0 0 3px rgba(208, 188, 255, 0.25); }
.form-field input:not(:placeholder-shown) + label, .form-field textarea:not(:placeholder-shown) + label, .form-field input:focus + label, .form-field textarea:focus + label { top: -6px; transform: none; font-size: 0.8rem; color: var(--md-primary); background: var(--md-surface-bright); }
.contact-links { text-align: center; margin-top: 1.5rem; }