/* ============================================================
   MADHAVI GAYATHRI — Portfolio CSS
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Poppins:wght@600;700;800&display=swap');

/* ============================================================
   Design Tokens — Light Theme (sole theme)
   ============================================================ */
:root {
  --color-primary:    #059669;
  --color-secondary:  #10B981;
  --color-accent:     #D97706;

  --bg-page:          #F0FDF4;
  --bg-card:          #ffffff;
  --bg-card-hover:    #ECFDF5;
  --bg-nav:           rgba(255, 255, 255, 0.92);
  --bg-mobile-menu:   #ffffff;

  --text-primary:     #064E3B;
  --text-secondary:   #065F46;
  --text-muted:       #6B7280;

  --border:           rgba(5, 150, 105, 0.18);
  --border-subtle:    rgba(5, 150, 105, 0.18);
  --border-hover:     rgba(5, 150, 105, 0.45);
  --glow-primary:     rgba(5, 150, 105, 0.15);
  --glow-secondary:   rgba(16, 185, 129, 0.12);
  --glow-accent:      rgba(217, 119, 6, 0.18);
  --shadow-scrolled:  rgba(0, 0, 0, 0.10);

  --orb-1:  rgba(16, 185, 129, 0.12);
  --orb-2:  rgba(52, 211, 153, 0.09);
  --orb-3:  rgba(245, 158, 11, 0.07);

  --tint-primary:      rgba(5, 150, 105, 0.07);
  --tint-primary-low:  rgba(5, 150, 105, 0.07);
  --tint-primary-mid:  rgba(5, 150, 105, 0.12);
  --tint-primary-high: rgba(5, 150, 105, 0.18);
  --tint-accent-low:   rgba(217, 119, 6, 0.07);
  --tint-accent-mid:   rgba(217, 119, 6, 0.15);

  --gradient-hero:  linear-gradient(135deg, #059669 0%, #10B981 100%);
  --gradient-text:  linear-gradient(135deg, #059669 0%, #10B981 60%, #34D399 100%);
  --gradient-card:  linear-gradient(145deg, #ffffff, #F0FDF4);
  --gradient-line:  linear-gradient(to bottom, #059669, #10B981, transparent);

  --font-heading: 'Poppins', sans-serif;
  --font-body:    'Inter', sans-serif;

  --text-xs:   0.75rem;
  --text-sm:   0.875rem;
  --text-base: 1rem;
  --text-lg:   1.125rem;
  --text-xl:   1.25rem;
  --text-2xl:  clamp(1.4rem, 3vw, 2rem);
  --text-3xl:  clamp(1.8rem, 4vw, 2.6rem);
  --text-hero: clamp(2.6rem, 7vw, 4.8rem);

  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;

  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.6s ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--text-primary);
  background-color: var(--bg-page);
  overflow-x: hidden;
  transition: background-color 0.35s ease, color 0.35s ease;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ============================================================
   Utilities
   ============================================================ */
.container {
  max-width: 1100px;
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 5vw, 2rem);
}

section {
  padding-block: clamp(4.5rem, 8vw, 7rem);
}

.section-label {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-secondary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.section-label::before {
  content: '';
  display: inline-block;
  width: 20px;
  height: 2px;
  background: var(--gradient-hero);
  border-radius: 2px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.15;
  margin-bottom: 0.25rem;
}

.section-header {
  margin-bottom: clamp(2rem, 4vw, 3.5rem);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: 999px;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  transition: transform var(--transition-base), box-shadow var(--transition-base), background var(--transition-base);
  white-space: nowrap;
}

.btn--primary {
  background: var(--gradient-hero);
  color: #fff;
  box-shadow: 0 4px 20px var(--glow-primary);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--glow-primary);
}

.btn--ghost {
  background: transparent;
  color: var(--text-primary);
  border: 1.5px solid var(--border-hover);
}

.btn--ghost:hover {
  background: var(--tint-primary-low);
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

/* Scroll reveal */
[data-animate] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
  transition-delay: var(--delay, 0ms);
}

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

/* ============================================================
   Navbar
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: var(--bg-nav);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  transition: box-shadow var(--transition-base), background var(--transition-base), border-color var(--transition-base);
}

.site-header.scrolled {
  box-shadow: 0 4px 40px var(--shadow-scrolled);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav__logo {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
}

.nav__menu {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav__link {
  position: relative;
  padding: 0.4rem 0.75rem;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  border-radius: var(--radius-sm);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--gradient-hero);
  border-radius: 2px;
  transition: width var(--transition-base);
}

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

.nav__link:hover::after,
.nav__link.active::after { width: calc(100% - 1.5rem); }

.nav__link.active { color: var(--text-primary); }

/* Nav actions (theme toggle + hamburger) */
.nav__actions {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}


.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  padding: 4px;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}

.nav__toggle:hover { background: var(--tint-primary-low); }

.nav__toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base), width var(--transition-base);
  transform-origin: center;
}

.nav__toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle.open span:nth-child(2) { opacity: 0; width: 0; }
.nav__toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   Hero
   ============================================================ */
.hero {
  position: relative;
  overflow: hidden;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.hero__orbs {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.hero__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
}

.hero__orb--1 {
  width: 700px; height: 700px;
  background: var(--orb-1);
  top: -20%; left: -15%;
  animation: floatOrb1 10s ease-in-out infinite alternate;
}

.hero__orb--2 {
  width: 580px; height: 580px;
  background: var(--orb-2);
  bottom: -10%; right: -10%;
  animation: floatOrb2 12s ease-in-out infinite alternate;
}

.hero__orb--3 {
  width: 300px; height: 300px;
  background: var(--orb-3);
  top: 40%; left: 55%;
  animation: floatOrb1 8s ease-in-out 2s infinite alternate;
}

.hero__content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
}

.hero__avatar-ring {
  /* Gradient ring around the photo */
  padding: 3px;
  border-radius: 50%;
  background: var(--gradient-hero);
  box-shadow: 0 8px 40px var(--glow-primary);
  animation: fadeSlideUp 0.7s ease 0.1s both;
  flex-shrink: 0;
}

.hero__avatar {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  overflow: hidden;
  background: var(--bg-card);
}

.hero__avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
}

.hero__name {
  font-family: var(--font-heading);
  font-size: var(--text-hero);
  font-weight: 800;
  line-height: 1.05;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: fadeSlideUp 0.7s ease 0.25s both;
}

.hero__title {
  font-size: var(--text-xl);
  font-weight: 500;
  color: var(--text-secondary);
  animation: fadeSlideUp 0.7s ease 0.4s both;
}

.hero__sub {
  font-size: var(--text-base);
  color: var(--text-muted);
  animation: fadeSlideUp 0.7s ease 0.5s both;
}

.hero__links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 0.5rem;
  animation: fadeSlideUp 0.7s ease 0.6s both;
}

.hero__link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 1rem;
  border-radius: 999px;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--tint-primary-low);
  border: 1px solid var(--border-subtle);
  transition: color var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.hero__link:hover {
  color: var(--text-primary);
  background: var(--tint-primary-mid);
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

.hero__link svg { width: 15px; height: 15px; flex-shrink: 0; }

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-top: 0.5rem;
  animation: fadeSlideUp 0.7s ease 0.75s both;
}

.hero__scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  animation: fadeSlideUp 0.7s ease 1s both;
}

.hero__scroll-line {
  width: 1.5px;
  height: 48px;
  background: var(--gradient-line);
  border-radius: 2px;
  animation: scrollLine 2s ease-in-out infinite;
}

/* ============================================================
   About
   ============================================================ */
.about__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

.about__text p {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 1rem;
}

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

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

.about__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.stat-card {
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem 1rem;
  text-align: center;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 48px var(--glow-primary);
  border-color: var(--border-hover);
}

.stat-card__value {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: 700;
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
  margin-bottom: 0.35rem;
}

.stat-card__label {
  font-size: var(--text-sm);
  color: var(--text-muted);
  font-weight: 500;
}

/* ============================================================
   Experience / Timeline
   ============================================================ */
.timeline {
  position: relative;
  padding-left: 2rem;
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 5px;
  top: 12px;
  bottom: 12px;
  width: 2px;
  background: var(--gradient-line);
  border-radius: 2px;
}

.timeline__item { position: relative; }

.timeline__dot {
  position: absolute;
  left: -2.45rem;
  top: 0.35rem;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--gradient-hero);
  box-shadow: 0 0 0 3px var(--bg-page), 0 0 0 5px var(--border-subtle), 0 0 16px var(--glow-primary);
  flex-shrink: 0;
}

.timeline__card {
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.timeline__card:hover {
  transform: translateX(4px);
  box-shadow: 0 12px 40px var(--glow-primary);
  border-color: var(--border-hover);
}

.timeline__header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.timeline__role {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
}

.timeline__meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.2rem;
}

.timeline__company {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-secondary);
}

.timeline__period {
  font-size: var(--text-xs);
  color: var(--text-muted);
  white-space: nowrap;
}

.timeline__location {
  font-size: var(--text-xs);
  color: var(--text-muted);
}

.timeline__bullets {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.timeline__bullets li {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  padding-left: 1.2rem;
  position: relative;
  line-height: 1.6;
}

.timeline__bullets li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-size: 0.7rem;
  top: 0.25rem;
}

.timeline__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 1rem;
}

.timeline__tag {
  font-size: var(--text-xs);
  padding: 0.2em 0.7em;
  border-radius: 999px;
  background: var(--tint-primary-low);
  border: 1px solid var(--border-subtle);
  color: var(--color-primary);
  font-weight: 500;
}

/* ============================================================
   Skills
   ============================================================ */
.skills__groups {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2.5rem;
  align-items: stretch;
}

.skill-group {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 1.5rem;
  border-radius: var(--radius-md);
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  box-shadow: 0 10px 30px rgba(5, 150, 105, 0.05);
}

.skill-group--featured {
  grid-column: 1 / -1;
}

.skill-group__label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.9rem;
}

.skill-group__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-content: flex-start;
}

.skill-tag {
  display: inline-flex;
  align-items: center;
  padding: 0.45em 1.1em;
  border-radius: 999px;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-secondary);
  background: var(--tint-primary-low);
  border: 1px solid var(--border-subtle);
  transition: background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast);
}

.skill-tag:hover {
  background: var(--tint-primary-mid);
  border-color: var(--color-secondary);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px var(--glow-secondary);
  color: var(--text-primary);
}

.skill-tag--primary {
  color: var(--color-primary);
  background: var(--tint-primary-low);
  border-color: var(--border-subtle);
}

.skill-tag--primary:hover {
  background: var(--tint-primary-mid);
  border-color: var(--color-primary);
  box-shadow: 0 4px 16px var(--glow-primary);
}

.skill-tag--accent {
  color: var(--color-accent);
  background: var(--tint-accent-low);
  border-color: var(--border-subtle);
}

.skill-tag--accent:hover {
  background: var(--tint-accent-mid);
  border-color: var(--color-accent);
  box-shadow: 0 4px 16px var(--glow-accent);
}

/* ── Spoken Languages ── */
.languages__list {
  margin-top: 2.5rem;
  padding: 2rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--gradient-card);
  box-shadow: 0 10px 30px rgba(5, 150, 105, 0.05);
}

.languages__items {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem 2.5rem;
  margin-top: 1rem;
}

.lang-item__top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 0.5rem;
  gap: 0.5rem;
}

@media (max-width: 820px) {
  .skills__groups {
    grid-template-columns: 1fr;
  }

  .skill-group--featured {
    grid-column: auto;
  }

  .languages__items {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }
}

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

.lang-item__level {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: right;
}

.lang-item__bar {
  height: 5px;
  background: var(--border);
  border-radius: 999px;
  overflow: hidden;
}

.lang-item__fill {
  height: 100%;
  width: var(--pct);
  background: var(--gradient-hero);
  border-radius: 999px;
  transition: width 1s ease;
}

@media (max-width: 767px) {
  .languages__items {
    grid-template-columns: 1fr;
    gap: 1.2rem;
  }
}

/* ============================================================
   Projects
   ============================================================ */
.projects__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.project-card {
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.project-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 60px var(--glow-primary);
  border-color: var(--border-hover);
}

.project-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.project-card__assoc {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--color-primary);
  background: var(--tint-primary);
  border: 1px solid var(--color-primary);
  border-radius: 999px;
  padding: 0.15rem 0.6rem;
  white-space: nowrap;
  flex-shrink: 0;
}

.project-card__icon {
  width: 44px; height: 44px;
  border-radius: var(--radius-sm);
  background: var(--tint-primary-mid);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.project-card__title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
}

.project-card__desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.65;
  flex: 1;
}

.project-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: auto;
}

.project-card__tag {
  font-size: var(--text-xs);
  padding: 0.2em 0.7em;
  border-radius: 999px;
  background: var(--tint-primary-low);
  border: 1px solid var(--border-subtle);
  color: var(--color-primary);
  font-weight: 500;
}

/* ============================================================
   Achievements
   ============================================================ */
.achievements__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.achievement-card {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.achievement-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 48px var(--glow-primary);
  border-color: var(--border-hover);
}

.achievement-card__icon {
  width: 48px; height: 48px;
  border-radius: var(--radius-sm);
  background: var(--gradient-hero);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
  box-shadow: 0 4px 20px var(--glow-primary);
}

.achievement-card__body { flex: 1; min-width: 0; }

.achievement-card__title {
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
  line-height: 1.3;
}

.achievement-card__desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.6;
}

.achievement-card__badge {
  display: inline-block;
  margin-top: 0.5rem;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-accent);
  background: var(--tint-accent-low);
  border: 1px solid var(--border-subtle);
  padding: 0.2em 0.7em;
  border-radius: 999px;
}

/* ============================================================
   Education
   ============================================================ */
.education__list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.edu-card {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.edu-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 48px var(--glow-secondary);
  border-color: var(--border-hover);
}

.edu-card__year-block {
  text-align: center;
  flex-shrink: 0;
  min-width: 60px;
}

.edu-card__year {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-secondary);
  line-height: 1.2;
}

.edu-card__year-range {
  font-size: var(--text-xs);
  color: var(--text-muted);
  margin-top: 0.2rem;
}

.edu-card__divider {
  width: 1px;
  align-self: stretch;
  background: var(--border-subtle);
  flex-shrink: 0;
}

.edu-card__degree {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
  margin-bottom: 0.3rem;
}

.edu-card__institution {
  font-size: var(--text-base);
  color: var(--color-secondary);
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.edu-card__detail {
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

.edu-card__cgpa {
  display: inline-block;
  margin-top: 0.5rem;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  background: var(--tint-primary-low);
  border: 1px solid var(--border-subtle);
  padding: 0.2em 0.8em;
  border-radius: 999px;
}

/* ============================================================
   Contact
   ============================================================ */
.contact__intro {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  max-width: 560px;
}

/* ── Hobbies ── */
/* Default (mobile): single column */
.hobbies__grid { grid-template-columns: 1fr; }

.section-desc {
  color: var(--text-secondary);
  line-height: 1.75;
  max-width: 680px;
  margin: 0.75rem auto 2.5rem;
  text-align: center;
  font-size: 1rem;
}

.hobbies__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.hobby-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  text-align: center;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.hobby-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 36px var(--glow-primary);
  border-color: var(--color-primary);
}

.hobby-card__icon {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--tint-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.25rem;
  color: var(--color-primary);
}

.hobby-card__icon svg {
  width: 26px;
  height: 26px;
}

.hobby-card__title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.6rem;
}

.hobby-card__desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.hobby-card--pending {
  border-style: dashed;
  opacity: 0.75;
}

.hobby-card--pending .hobby-card__icon {
  color: var(--color-secondary);
}

.hobby-card--pending .hobby-card__title {
  color: var(--color-secondary);
}

/* ── Contact ── */
.contact__cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.contact-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.75rem 1.25rem;
  text-align: center;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.contact-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 16px 48px var(--glow-primary);
  border-color: var(--border-hover);
}

.contact-card__icon {
  width: 48px; height: 48px;
  border-radius: var(--radius-sm);
  background: var(--tint-primary-low);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  transition: background var(--transition-fast), box-shadow var(--transition-fast);
}

.contact-card:hover .contact-card__icon {
  background: var(--tint-primary-mid);
  box-shadow: 0 4px 20px var(--glow-primary);
}

.contact-card__icon svg { width: 22px; height: 22px; }

.contact-card__label {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.contact-card__value {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  word-break: break-all;
}

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

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  border-top: 1px solid var(--border-subtle);
  padding-block: 2.5rem;
}

.footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.footer__copy {
  font-size: var(--text-sm);
  color: var(--text-muted);
}

.footer__copy span {
  color: var(--color-primary);
  font-weight: 600;
}

.footer__links { display: flex; gap: 1rem; }

.footer__link {
  font-size: var(--text-sm);
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.footer__link:hover { color: var(--color-secondary); }

/* ============================================================
   Animations & Keyframes
   ============================================================ */
@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes floatOrb1 {
  from { transform: translate(0, 0) scale(1); }
  to   { transform: translate(60px, -50px) scale(1.1); }
}

@keyframes floatOrb2 {
  from { transform: translate(0, 0) scale(1); }
  to   { transform: translate(-50px, 40px) scale(1.08); }
}

@keyframes scrollLine {
  0%   { transform: scaleY(1); transform-origin: top; opacity: 1; }
  50%  { transform: scaleY(0.3); transform-origin: top; opacity: 0.5; }
  51%  { transform: scaleY(0.3); transform-origin: bottom; opacity: 0.5; }
  100% { transform: scaleY(1); transform-origin: bottom; opacity: 1; }
}

/* ============================================================
   Responsive — 768px+
   ============================================================ */
@media (min-width: 768px) {
  .about__grid {
    grid-template-columns: 1.6fr 1fr;
    align-items: start;
  }

  .about__stats {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

  .projects__grid { grid-template-columns: repeat(2, 1fr); }

  .achievements__grid { grid-template-columns: repeat(2, 1fr); }

  .hobbies__grid { grid-template-columns: repeat(3, 1fr); }

  .contact__cards { grid-template-columns: repeat(4, 1fr); }
}

/* ============================================================
   Mobile Navbar
   ============================================================ */
@media (max-width: 767px) {
  .nav__menu {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: var(--bg-mobile-menu);
    border-bottom: 1px solid var(--border-subtle);
    padding: 1.25rem 1.5rem;
    gap: 0;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.4s ease, opacity 0.3s ease, background var(--transition-base);
  }

  .nav__menu.open {
    max-height: 500px;
    opacity: 1;
  }

  .nav__link {
    padding: 0.85rem 0;
    font-size: var(--text-base);
    border-bottom: 1px solid var(--border-subtle);
  }

  .nav__link:last-child { border-bottom: none; }
  .nav__link::after { display: none; }

  .nav__toggle { display: flex; }

  .contact__cards { grid-template-columns: repeat(2, 1fr); }
}

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