/* ============================================
   DESIGN SYSTEM — "MongoDB Midnight" Dark Theme
   Dark navy + electric green + lime accents
   Inspired by mongodb.com color language
   ============================================ */

:root {
  /* MongoDB-inspired backgrounds */
  --bg-primary: #001E2B;
  --bg-alt: #002538;
  --bg-deep: #001219;
  --bg-card: rgba(255, 255, 255, 0.04);
  --bg-card-hover: rgba(255, 255, 255, 0.07);

  /* Text */
  --text-primary: #F9FBFA;
  --text-secondary: #B8C4C2;
  --text-muted: #5D6C74;

  /* MongoDB accent palette */
  --green: #00ED64;
  --green-dark: #00684A;
  --green-glow: rgba(0, 237, 100, 0.15);
  --lime: #B1FF05;
  --lime-glow: rgba(177, 255, 5, 0.12);
  --blue: #006CFA;
  --blue-glow: rgba(0, 108, 250, 0.12);
  --white: #FFFFFF;
  --slate: #21313C;

  /* Semantic mapping */
  --accent: var(--green);
  --accent-hover: #00FF6E;
  --accent-glow: var(--green-glow);
  --secondary: var(--lime);
  --tertiary: var(--blue);

  /* For tag reuse from HTML */
  --orange: var(--green);
  --teal: var(--lime);
  --purple: var(--blue);
  --yellow: #FFD23F;

  /* Glass & borders */
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-border-hover: rgba(0, 237, 100, 0.2);
  --glass-bg: rgba(255, 255, 255, 0.03);

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
  --shadow-green: 0 8px 32px rgba(0, 237, 100, 0.15);
  --shadow-green-lg: 0 12px 40px rgba(0, 237, 100, 0.2);

  /* Gradients */
  --grad-green: linear-gradient(135deg, #00ED64, #B1FF05);
  --grad-blue-green: linear-gradient(135deg, #006CFA, #00ED64);
  --grad-deep: linear-gradient(135deg, #001E2B, #002538);
  --grad-lime: linear-gradient(135deg, #B1FF05, #00ED64);
  --grad-glow: linear-gradient(135deg, rgba(0, 237, 100, 0.08), rgba(0, 108, 250, 0.08));

  /* Typography */
  --font-heading: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Spacing */
  --section-pad: 120px;
  --container-max: 1160px;

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: 0.2s var(--ease-out);
  --transition-med: 0.45s var(--ease-out);
  --transition-slow: 0.7s var(--ease-out);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  font-size: 17px;
}

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

.mono { font-family: var(--font-mono); }

/* ============ LAYOUT ============ */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 32px;
}

.section {
  padding: var(--section-pad) 0;
  position: relative;
}

.section--alt {
  background: var(--bg-alt);
}

.section__title {
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 700;
  margin-bottom: 12px;
  text-align: center;
  letter-spacing: -0.03em;
}

.section__subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: 64px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.55;
}

/* ============ GLASS CARD ============ */
.glass-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: all var(--transition-med);
}

.glass-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--glass-border-hover);
  box-shadow: var(--shadow-md);
}

/* ============ BUTTONS ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 15px 32px;
  border-radius: 12px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  transition: all var(--transition-fast);
  gap: 8px;
  letter-spacing: -0.01em;
}

.btn--primary {
  background: var(--green);
  color: var(--bg-primary);
}

.btn--primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-green-lg);
}

.btn--outline {
  border: 2px solid rgba(0, 237, 100, 0.25);
  color: var(--green);
}

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

.btn--full { width: 100%; }

/* ============ NAVIGATION ============ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 32px;
  transition: all var(--transition-fast);
}

.nav--scrolled {
  background: rgba(0, 30, 43, 0.92);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  padding: 12px 32px;
  border-bottom: 1px solid var(--glass-border);
  box-shadow: 0 1px 12px rgba(0, 0, 0, 0.3);
}

.nav__logo {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.4rem;
  background: var(--grad-green);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.03em;
}

.nav__links {
  display: flex;
  gap: 8px;
}

.nav__link {
  font-size: 0.88rem;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  position: relative;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 8px;
}

.nav__link::after { display: none; }

.nav__link:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.nav__link--active {
  color: var(--green);
  background: var(--green-glow);
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* Language Toggle */
.lang-toggle {
  display: flex;
  align-items: center;
  gap: 2px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  padding: 6px 12px;
  border-radius: 10px;
  border: 1.5px solid var(--glass-border);
  transition: all var(--transition-fast);
}

.lang-toggle:hover {
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(0, 237, 100, 0.08);
}

.lang-toggle__option {
  cursor: pointer;
  transition: color var(--transition-fast);
  padding: 2px 4px;
  border-radius: 4px;
}

.lang-toggle__option--active {
  color: var(--green);
  font-weight: 700;
  background: var(--green-glow);
}

.lang-toggle__divider {
  color: var(--text-muted);
  margin: 0 2px;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: all var(--transition-fast);
  border-radius: 2px;
}

.hamburger--active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger--active span:nth-child(2) { opacity: 0; }
.hamburger--active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 999;
  background: rgba(0, 18, 25, 0.98);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-med);
}

.mobile-menu--active {
  opacity: 1;
  pointer-events: all;
}

.mobile-menu__link {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: color var(--transition-fast), transform var(--transition-med);
  transform: translateY(20px);
  opacity: 0;
}

.mobile-menu--active .mobile-menu__link {
  transform: translateY(0);
  opacity: 1;
}

.mobile-menu__link:hover { color: var(--green); }

.mobile-menu--active .mobile-menu__link:nth-child(1) { transition-delay: 0.04s; }
.mobile-menu--active .mobile-menu__link:nth-child(2) { transition-delay: 0.08s; }
.mobile-menu--active .mobile-menu__link:nth-child(3) { transition-delay: 0.12s; }
.mobile-menu--active .mobile-menu__link:nth-child(4) { transition-delay: 0.16s; }
.mobile-menu--active .mobile-menu__link:nth-child(5) { transition-delay: 0.20s; }
.mobile-menu--active .mobile-menu__link:nth-child(6) { transition-delay: 0.24s; }
.mobile-menu--active .mobile-menu__link:nth-child(7) { transition-delay: 0.28s; }

/* ============ HERO ============ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background: var(--bg-deep);
}

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

.hero__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  animation: orbFloat 16s ease-in-out infinite;
}

.hero__orb--orange {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0, 237, 100, 0.3), transparent 70%);
  top: 5%;
  left: 10%;
  animation-delay: 0s;
}

.hero__orb--teal {
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, rgba(177, 255, 5, 0.2), transparent 70%);
  bottom: 10%;
  right: 5%;
  animation-delay: -5s;
}

.hero__orb--purple {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(0, 108, 250, 0.2), transparent 70%);
  top: 45%;
  left: 55%;
  animation-delay: -10s;
}

@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(40px, -50px) scale(1.08); }
  50% { transform: translate(-30px, 30px) scale(0.95); }
  75% { transform: translate(35px, 40px) scale(1.04); }
}

.hero__content {
  text-align: center;
  z-index: 1;
  padding: 0 24px;
  max-width: 900px;
}

.hero__name {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: -0.04em;
}

.hero__name-line {
  display: block;
  font-size: clamp(3rem, 10vw, 7.5rem);
}

/* Gradient on middle name */
.hero__name-line:nth-child(2) {
  background: var(--grad-green);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__tagline {
  font-size: clamp(1rem, 2.5vw, 1.4rem);
  color: var(--text-secondary);
  margin-top: 28px;
  font-weight: 400;
  letter-spacing: 0.04em;
}

.hero__cta {
  margin-top: 48px;
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero__scroll {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
}

.hero__scroll-indicator {
  width: 24px;
  height: 40px;
  border: 2px solid rgba(0, 237, 100, 0.3);
  border-radius: 12px;
  position: relative;
}

.hero__scroll-indicator::before {
  content: '';
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 8px;
  background: var(--green);
  border-radius: 2px;
  animation: scrollBounce 2.2s ease-in-out infinite;
}

@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); opacity: 1; }
  50% { transform: translateX(-50%) translateY(12px); opacity: 0.2; }
}

/* ============ ABOUT ============ */
#about.section--alt {
  background: var(--bg-alt);
}

.about {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 64px;
  align-items: start;
  margin-top: 24px;
}

.about__photo-frame {
  aspect-ratio: 1;
  border-radius: 24px;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(0, 237, 100, 0.05), rgba(0, 108, 250, 0.05));
  position: relative;
  box-shadow: var(--shadow-md);
}

.about__photo-frame::after {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: 26px;
  background: var(--grad-green);
  z-index: -1;
  opacity: 0.2;
}

.about__photo-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 4rem;
  font-weight: 700;
  color: var(--green);
  background: linear-gradient(135deg, rgba(0, 237, 100, 0.06), rgba(0, 108, 250, 0.06));
}

.about__photo-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 20%;
  display: block;
  transition: transform 0.6s ease;
}

.about__photo-frame:hover .about__photo-img {
  transform: scale(1.04);
}

.about__lead {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.about__body {
  color: var(--text-secondary);
  margin-bottom: 14px;
  font-size: 1.05rem;
  line-height: 1.7;
}

.about__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 40px;
}

.stat {
  text-align: center;
  padding: 24px 16px;
  border-radius: 14px;
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  transition: all var(--transition-med);
}

.stat:hover {
  border-color: var(--glass-border-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-green);
}

.stat__number {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  display: inline;
}

.stat__plus {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
}

/* Color each stat differently */
.stat:nth-child(1) .stat__number, .stat:nth-child(1) .stat__plus { color: var(--green); }
.stat:nth-child(2) .stat__number, .stat:nth-child(2) .stat__plus { color: var(--lime); }
.stat:nth-child(3) .stat__number, .stat:nth-child(3) .stat__plus { color: var(--blue); }
.stat:nth-child(4) .stat__number, .stat:nth-child(4) .stat__plus { color: var(--green); }
.stat:nth-child(5) .stat__number, .stat:nth-child(5) .stat__plus { color: #FFD23F; }
.stat:nth-child(6) .stat__number, .stat:nth-child(6) .stat__plus { color: var(--lime); }

.stat__label {
  display: block;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 4px;
  font-weight: 500;
}

/* ============ TIMELINE ============ */
#timeline {
  background: var(--bg-deep);
}

.timeline {
  position: relative;
  max-width: 820px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(to bottom, var(--green), var(--blue), var(--lime));
  transform: translateX(-50%);
  border-radius: 3px;
  opacity: 0.2;
}

.timeline__item {
  position: relative;
  width: 50%;
  padding: 0 48px 56px;
}

.timeline__item:nth-child(odd) {
  left: 0;
  text-align: right;
  padding-right: 56px;
  padding-left: 0;
}

.timeline__item:nth-child(even) {
  left: 50%;
  text-align: left;
  padding-left: 56px;
  padding-right: 0;
}

.timeline__dot {
  position: absolute;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  top: 8px;
  z-index: 1;
  border: 3px solid var(--bg-deep);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.timeline__item:hover .timeline__dot {
  transform: scale(1.35);
}

.timeline__item:nth-child(odd) .timeline__dot { right: -8px; }
.timeline__item:nth-child(even) .timeline__dot { left: -8px; }

.timeline__item--education .timeline__dot { background: var(--blue); box-shadow: 0 0 0 4px rgba(0, 108, 250, 0.2), 0 0 16px rgba(0, 108, 250, 0.3); }
.timeline__item--work .timeline__dot { background: var(--green); box-shadow: 0 0 0 4px rgba(0, 237, 100, 0.15), 0 0 16px rgba(0, 237, 100, 0.25); }
.timeline__item--entrepreneurship .timeline__dot { background: var(--lime); box-shadow: 0 0 0 4px rgba(177, 255, 5, 0.15), 0 0 16px rgba(177, 255, 5, 0.2); }

.timeline__item--education:hover .timeline__dot { box-shadow: 0 0 0 6px rgba(0, 108, 250, 0.25), 0 0 24px rgba(0, 108, 250, 0.4); }
.timeline__item--work:hover .timeline__dot { box-shadow: 0 0 0 6px rgba(0, 237, 100, 0.2), 0 0 24px rgba(0, 237, 100, 0.35); }
.timeline__item--entrepreneurship:hover .timeline__dot { box-shadow: 0 0 0 6px rgba(177, 255, 5, 0.2), 0 0 24px rgba(177, 255, 5, 0.3); }

.timeline__card {
  padding: 28px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  transition: all var(--transition-med);
}

.timeline__card:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--glass-border-hover);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

/* Colored accent border */
.timeline__item--education .timeline__card { border-left: 3px solid rgba(0, 108, 250, 0.4); }
.timeline__item--work .timeline__card { border-left: 3px solid rgba(0, 237, 100, 0.4); }
.timeline__item--entrepreneurship .timeline__card { border-left: 3px solid rgba(177, 255, 5, 0.35); }

.timeline__item:nth-child(odd) .timeline__card { border-left: none; }
.timeline__item:nth-child(odd).timeline__item--education .timeline__card { border-right: 3px solid rgba(0, 108, 250, 0.4); }
.timeline__item:nth-child(odd).timeline__item--work .timeline__card { border-right: 3px solid rgba(0, 237, 100, 0.4); }
.timeline__item:nth-child(odd).timeline__item--entrepreneurship .timeline__card { border-right: 3px solid rgba(177, 255, 5, 0.35); }

.timeline__year {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  display: inline-block;
  padding: 3px 12px;
  border-radius: 6px;
  margin-bottom: 10px;
}

.timeline__item--education .timeline__year { color: var(--blue); background: var(--blue-glow); }
.timeline__item--work .timeline__year { color: var(--green); background: var(--green-glow); }
.timeline__item--entrepreneurship .timeline__year { color: var(--lime); background: var(--lime-glow); }

.timeline__heading {
  font-family: var(--font-heading);
  font-size: 1.12rem;
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: -0.015em;
}

.timeline__text {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.6;
}

/* ============ PROJECTS ============ */

/* Ecosystem banner */
.project-ecosystem {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 40px;
  padding: 16px 28px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(0,237,100,0.06), rgba(0,108,250,0.06));
  border: 1px solid rgba(0,237,100,0.12);
}

.project-ecosystem__label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-muted);
}

.project-ecosystem__items {
  display: flex;
  align-items: center;
  gap: 8px;
}

.project-ecosystem__item {
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--green);
  padding: 4px 12px;
  border-radius: 8px;
  background: var(--green-glow);
}

.project-ecosystem__arrow {
  color: var(--text-muted);
  font-size: 0.7rem;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.project-card {
  overflow: hidden;
  transition: all var(--transition-med);
  border-radius: 16px;
}

.project-card--featured {
  grid-column: 1 / -1;
}

.project-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--glass-border-hover);
}

/* SVG Architecture Diagram */
.project-card__diagram {
  height: 180px;
  padding-top: 5px;
  overflow: hidden;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.project-card--featured .project-card__diagram {
  height: 220px;
}

.project-card__diagram svg {
  width: 100%;
  height: 100%;
}

.project-card__diagram .node-rect {
  transition: filter 0.3s ease;
}

.project-card:hover .project-card__diagram .node-rect {
  filter: brightness(1.2);
}

.project-card:hover .project-card__diagram .node-pulse {
  animation: nodePulse 1.5s ease-in-out infinite;
}

@keyframes nodePulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

/* Fallback image/placeholder (kept for compat) */
.project-card__image {
  height: 160px;
  overflow: hidden;
  position: relative;
}

.project-card__placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  color: var(--bg-primary);
  transition: transform var(--transition-med);
}

.project-card:hover .project-card__placeholder {
  transform: scale(1.06);
}

/* Card content */
.project-card__content {
  padding: 24px 28px;
}

.project-card__header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
  flex-wrap: wrap;
}

.project-card__title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.015em;
}

.project-card--featured .project-card__title {
  font-size: 1.4rem;
}

.project-card__role {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 5px;
  background: var(--blue-glow);
  color: var(--blue);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.project-card__tagline {
  font-family: var(--font-heading);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--green);
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.project-card__desc {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.55;
  margin-bottom: 16px;
}

/* Metrics row */
.project-card__metrics {
  display: flex;
  gap: 20px;
  margin-bottom: 18px;
  padding: 12px 0;
  border-top: 1px solid var(--glass-border);
  border-bottom: 1px solid var(--glass-border);
}

.project-card__metric {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.project-card__metric-value {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--green);
  line-height: 1.2;
}

.project-card--featured .project-card__metric-value {
  font-size: 1.35rem;
}

.project-card__metric-label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  text-align: center;
}

/* Tags */
.project-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 4px 10px;
  border-radius: 6px;
  font-weight: 500;
}

.tag--lang { background: var(--green-glow); color: var(--green); }
.tag--framework { background: var(--lime-glow); color: var(--lime); }
.tag--data { background: var(--blue-glow); color: var(--blue); }
.tag--ai { background: rgba(139, 92, 246, 0.12); color: #A78BFA; }
.tag--infra { background: rgba(20, 184, 166, 0.12); color: #2DD4BF; }
.tag--civic { background: rgba(239, 68, 68, 0.12); color: #f87171; }
.tag--design { background: rgba(236, 72, 153, 0.12); color: #f472b6; }

/* Footer row: tags + status */
.project-card__footer {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
}

.project-card__status {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 6px;
  display: inline-block;
  white-space: nowrap;
  flex-shrink: 0;
}

.project-card__status--active {
  background: var(--green-glow);
  color: var(--green);
}

.project-card__status--completed {
  background: rgba(255, 210, 63, 0.12);
  color: #FFD23F;
}

.project-card__status--live {
  background: var(--green-glow);
  color: var(--green);
  position: relative;
  padding-left: 18px;
}

.project-card__status--live::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  animation: livePulse 2s ease-in-out infinite;
}

@keyframes livePulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(0,237,100,0.4); }
  50% { opacity: 0.6; box-shadow: 0 0 0 4px rgba(0,237,100,0); }
}

/* ============ PROJECT FILTERS ============ */
.projects__filters {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin: -8px 0 28px;
  flex-wrap: wrap;
}

.project-card--hidden { display: none; }

.project-card__deepdive {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
  padding: 8px 16px;
  border-radius: 10px;
  border: 1.5px solid var(--green);
  color: var(--green);
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.2px;
  background: var(--green-glow);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.project-card__deepdive:hover {
  background: var(--green);
  color: var(--bg-primary);
  transform: translateY(-1px);
}

/* ============ BOOKS ============ */
.books__filters {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 44px;
  flex-wrap: wrap;
}

.filter-pill {
  font-family: var(--font-heading);
  font-size: 0.88rem;
  font-weight: 500;
  padding: 9px 20px;
  border-radius: 12px;
  border: 1.5px solid var(--glass-border);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.filter-pill:hover {
  border-color: var(--green);
  color: var(--green);
  background: var(--green-glow);
}

.filter-pill--active {
  border-color: var(--green);
  color: var(--bg-primary);
  background: var(--green);
}

.filter-pill--active:hover {
  color: var(--bg-primary);
  background: var(--green);
}

.books-carousel {
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
  scrollbar-color: var(--glass-border) transparent;
  padding-bottom: 16px;
}

.books-carousel::-webkit-scrollbar { height: 6px; }
.books-carousel::-webkit-scrollbar-track { background: transparent; }
.books-carousel::-webkit-scrollbar-thumb { background: var(--glass-border); border-radius: 3px; }

.books-carousel__track {
  display: flex;
  gap: 24px;
  padding: 8px;
}

.book-card {
  min-width: 215px;
  max-width: 215px;
  scroll-snap-align: start;
  perspective: 600px;
  transition: transform var(--transition-med);
}

.book-card:hover { transform: translateY(-4px); }

.book-card--hidden { display: none; }

.book-card__cover {
  height: 295px;
  border-radius: 14px;
  overflow: hidden;
  transition: all var(--transition-med);
  transform-style: preserve-3d;
  box-shadow: var(--shadow-sm);
}

.book-card:hover .book-card__cover {
  transform: rotateY(-6deg) rotateX(2deg);
  box-shadow: var(--shadow-lg);
}

.book-card__placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  border-radius: 14px;
}

/* Gradient covers */
.book-card:nth-child(1) .book-card__placeholder { background: linear-gradient(160deg, #00ED64, #00684A); }
.book-card:nth-child(2) .book-card__placeholder { background: linear-gradient(160deg, #006CFA, #00ED64); }
.book-card:nth-child(3) .book-card__placeholder { background: linear-gradient(160deg, #B1FF05, #006CFA); }
.book-card:nth-child(4) .book-card__placeholder { background: linear-gradient(160deg, #FFD23F, #00ED64); }
.book-card:nth-child(5) .book-card__placeholder { background: linear-gradient(160deg, #00ED64, #B1FF05); }
.book-card:nth-child(6) .book-card__placeholder { background: linear-gradient(160deg, #006CFA, #B1FF05); }
.book-card:nth-child(7) .book-card__placeholder { background: linear-gradient(160deg, #00684A, #006CFA); }
.book-card:nth-child(8) .book-card__placeholder { background: linear-gradient(160deg, #B1FF05, #FFD23F); }
.book-card:nth-child(9) .book-card__placeholder { background: linear-gradient(160deg, #00ED64, #006CFA); }
.book-card:nth-child(10) .book-card__placeholder { background: linear-gradient(160deg, #FFD23F, #B1FF05); }
.book-card:nth-child(11) .book-card__placeholder { background: linear-gradient(160deg, #006CFA, #00684A); }

.book-card__icon { font-size: 3rem; filter: brightness(10); }
.book-card__short-title {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 700;
  color: rgba(0, 30, 43, 0.9);
  text-align: center;
  padding: 0 16px;
}

.book-card__info { padding: 16px 4px; }

.book-card__title {
  font-family: var(--font-heading);
  font-size: 0.92rem;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 4px;
}

.book-card__category {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.book-card__isbn {
  display: block;
  font-size: 0.68rem;
  color: var(--text-muted);
  margin-bottom: 8px;
  opacity: 0.6;
}

.book-card__link {
  font-size: 0.82rem;
  color: var(--green);
  font-weight: 600;
  transition: color var(--transition-fast);
}

.book-card__link:hover { color: var(--lime); }

/* ============ EDUCATION ============ */
#education.section--alt {
  background: var(--bg-alt);
}

.education-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
  margin-top: 24px;
}

.edu-card {
  padding: 32px;
  text-align: center;
  transition: all var(--transition-med);
  overflow: hidden;
  position: relative;
  border-top: none;
}

.edu-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  border-radius: 16px 16px 0 0;
}

.edu-card:nth-child(1)::before { background: var(--grad-blue-green); }
.edu-card:nth-child(2)::before { background: var(--grad-green); }
.edu-card:nth-child(3)::before { background: var(--grad-lime); }
.edu-card:nth-child(4)::before { background: linear-gradient(135deg, #FFD23F, var(--green)); }
.edu-card:nth-child(5)::before { background: var(--grad-blue-green); }

.edu-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: var(--glass-border-hover);
}

.edu-card__icon {
  font-size: 2.2rem;
  margin-bottom: 14px;
  display: inline-block;
  padding: 12px;
  border-radius: 14px;
}

.edu-card:nth-child(1) .edu-card__icon { background: var(--blue-glow); }
.edu-card:nth-child(2) .edu-card__icon { background: var(--green-glow); }
.edu-card:nth-child(3) .edu-card__icon { background: var(--lime-glow); }
.edu-card:nth-child(4) .edu-card__icon { background: rgba(255, 210, 63, 0.1); }
.edu-card:nth-child(5) .edu-card__icon { background: var(--blue-glow); }

.edu-card__degree {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.edu-card__institution {
  color: var(--text-secondary);
  font-size: 0.92rem;
  margin-bottom: 12px;
}

.edu-card__year {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--green);
  font-weight: 600;
  background: var(--green-glow);
  padding: 3px 12px;
  border-radius: 6px;
  display: inline-block;
}

/* ============ SKILLS ============ */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
  margin-top: 24px;
}

.skill-group {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 28px;
  transition: all var(--transition-med);
}

.skill-group:hover {
  border-color: var(--glass-border-hover);
  box-shadow: var(--shadow-green);
  transform: translateY(-2px);
}

.skill-group__title {
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
  color: var(--text-muted);
}

.skill-group__pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.skill-pill {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  padding: 7px 14px;
  border-radius: 8px;
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  background: transparent;
  transition: all var(--transition-fast);
}

.skill-pill:hover {
  border-color: var(--green);
  color: var(--green);
  background: var(--green-glow);
  transform: translateY(-2px);
}

/* ============ CONTACT ============ */
.contact {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.contact__text {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-top: 16px;
  margin-bottom: 36px;
  line-height: 1.7;
}

.contact__links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.contact__link {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-secondary);
  font-size: 1rem;
  font-weight: 500;
  padding: 12px 16px;
  border-radius: 12px;
  transition: all var(--transition-fast);
}

.contact__link:hover {
  color: var(--green);
  background: var(--green-glow);
}

.contact__link-icon {
  font-size: 1.2rem;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: var(--green-glow);
}

/* Form */
.contact__form {
  background: var(--glass-bg);
  padding: 36px;
  border-radius: 20px;
  border: 1px solid var(--glass-border);
}

.form-group {
  position: relative;
  margin-bottom: 22px;
}

.form-input {
  width: 100%;
  padding: 16px 18px;
  padding-top: 24px;
  background: rgba(255, 255, 255, 0.03);
  border: 2px solid var(--glass-border);
  border-radius: 12px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: all var(--transition-fast);
  outline: none;
}

.form-input:focus {
  border-color: var(--green);
  background: rgba(0, 237, 100, 0.03);
  box-shadow: 0 0 0 3px rgba(0, 237, 100, 0.08);
}

.form-label {
  position: absolute;
  left: 18px;
  top: 20px;
  color: var(--text-muted);
  font-size: 1rem;
  transition: all var(--transition-fast);
  pointer-events: none;
}

.form-input:focus ~ .form-label,
.form-input:not(:placeholder-shown) ~ .form-label {
  top: 6px;
  font-size: 0.72rem;
  color: var(--green);
  font-weight: 600;
}

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

/* ============ TALKY SPOTLIGHT ============ */
#talky-spotlight {
  background:
    radial-gradient(ellipse at 80% 0%, rgba(0, 237, 100, 0.06), transparent 60%),
    radial-gradient(ellipse at 0% 100%, rgba(0, 108, 250, 0.05), transparent 55%),
    var(--bg);
  border-top: 1px solid var(--glass-border);
  border-bottom: 1px solid var(--glass-border);
}

.spotlight-header {
  max-width: 900px;
  margin: 0 auto 36px;
  text-align: center;
}

.spotlight-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--green);
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--green-glow);
  border: 1px solid rgba(0, 237, 100, 0.3);
  margin-bottom: 18px;
}

.spotlight-kicker::before {
  content: '◆';
  color: var(--green);
  font-size: 0.6rem;
}

.section__title--spotlight {
  font-size: clamp(1.7rem, 3.3vw, 2.4rem);
  line-height: 1.22;
  letter-spacing: -0.03em;
  margin-bottom: 18px;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--green) 75%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Scale bar */
.spotlight-scalebar {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px 26px;
  padding: 26px 28px;
  margin: 0 auto 56px;
  max-width: 1080px;
  background: linear-gradient(135deg, rgba(0, 237, 100, 0.04), rgba(0, 108, 250, 0.04));
  border: 1px solid var(--glass-border);
  border-radius: 18px;
  backdrop-filter: blur(8px);
}

.spotlight-scalebar__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  min-width: 100px;
}

.spotlight-scalebar__value {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 2.5vw, 1.9rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--green);
  line-height: 1;
}

.spotlight-scalebar__label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.spotlight-scalebar__divider {
  width: 1px;
  height: 32px;
  background: var(--glass-border);
}

/* Panels grid */
.spotlight-panels {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 26px;
}

.spotlight-panel {
  padding: 28px 28px 24px;
  border-radius: 20px;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.spotlight-panel:hover {
  transform: translateY(-3px);
  border-color: rgba(0, 237, 100, 0.3);
}

.spotlight-panel--wide {
  grid-column: 1 / -1;
}

.spotlight-panel__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 18px;
}

.spotlight-panel__num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--green);
  padding: 3px 10px;
  background: var(--green-glow);
  border-radius: 6px;
  border: 1px solid rgba(0, 237, 100, 0.3);
  flex-shrink: 0;
}

.spotlight-panel__title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  margin: 0;
}

.spotlight-panel__diagram {
  margin: 8px 0 22px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--glass-border);
}

.spotlight-panel__diagram svg {
  width: 100%;
  height: auto;
  display: block;
}

.spotlight-panel__lede {
  color: var(--text-secondary);
  font-size: 0.96rem;
  line-height: 1.65;
  margin-bottom: 22px;
}

.spotlight-panel__points {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 11px;
  padding: 0;
  margin: 0;
}

.spotlight-panel__points li {
  position: relative;
  padding-left: 22px;
  color: var(--text-secondary);
  font-size: 0.94rem;
  line-height: 1.6;
}

.spotlight-panel__points li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.58em;
  width: 10px;
  height: 2px;
  background: var(--green);
  border-radius: 1px;
}

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

.spotlight-panel__footer {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--glass-border);
}

.spotlight-panel__footer-text {
  color: var(--text-secondary);
  font-size: 0.94rem;
  line-height: 1.65;
  font-style: italic;
}

/* Professional English grid */
.spotlight-prof__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px;
  margin-top: 6px;
}

.prof-card {
  position: relative;
  padding: 20px 18px 18px;
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.02), rgba(0, 237, 100, 0.02));
  transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}

.prof-card:hover {
  transform: translateY(-2px);
  border-color: rgba(0, 237, 100, 0.4);
  background: linear-gradient(135deg, rgba(0, 237, 100, 0.04), rgba(0, 108, 250, 0.03));
}

.prof-card__tag {
  position: absolute;
  top: 12px;
  right: 12px;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 999px;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--glass-border);
}

.prof-card__tag--live {
  color: var(--green);
  background: var(--green-glow);
  border-color: rgba(0, 237, 100, 0.4);
}

.prof-card__icon {
  font-size: 1.5rem;
  margin-bottom: 8px;
  line-height: 1;
}

.prof-card__name {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 6px;
}

.prof-card__meta {
  color: var(--text-secondary);
  font-size: 0.82rem;
  line-height: 1.45;
  margin-bottom: 10px;
}

.prof-card__level {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  padding-top: 8px;
  border-top: 1px solid var(--glass-border);
  width: 100%;
}

/* Research angles grid */
.spotlight-research__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin-top: 6px;
}

.research-card {
  position: relative;
  padding: 22px 22px 20px;
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(0, 108, 250, 0.03), rgba(139, 92, 246, 0.02));
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.research-card:hover {
  transform: translateY(-2px);
  border-color: rgba(0, 108, 250, 0.4);
}

.research-card__num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--blue);
  padding: 3px 9px;
  background: var(--blue-glow);
  border: 1px solid rgba(0, 108, 250, 0.3);
  border-radius: 6px;
  margin-bottom: 12px;
}

.research-card__q {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.35;
  margin: 0 0 10px;
}

.research-card__body {
  color: var(--text-secondary);
  font-size: 0.88rem;
  line-height: 1.55;
  margin: 0;
}

@media (max-width: 860px) {
  .spotlight-panels {
    grid-template-columns: 1fr;
  }
  .spotlight-scalebar__divider {
    display: none;
  }
  .spotlight-scalebar {
    gap: 18px 22px;
  }
}

/* ============ FOOTER ============ */
.footer {
  padding: 56px 0 28px;
  border-top: 1px solid var(--glass-border);
  background: var(--bg-deep);
}

.footer__content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 28px;
  flex-wrap: wrap;
  gap: 24px;
}

.footer__logo {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.4rem;
  background: var(--grad-green);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.03em;
}

.footer__tagline {
  color: var(--text-muted);
  font-size: 0.88rem;
  margin-top: 4px;
}

.footer__nav {
  display: flex;
  gap: 20px;
}

.footer__nav a {
  color: var(--text-muted);
  font-size: 0.88rem;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.footer__nav a:hover { color: var(--green); }

.footer__social {
  display: flex;
  gap: 10px;
}

.footer__social a {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  border: 1px solid var(--glass-border);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  transition: all var(--transition-fast);
}

.footer__social a:hover {
  border-color: var(--green);
  color: var(--green);
  background: var(--green-glow);
  transform: translateY(-2px);
  box-shadow: var(--shadow-green);
}

.footer__copy {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.78rem;
}

/* ============ WHATSAPP ============ */
.whatsapp-btn {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 900;
  width: 56px;
  height: 56px;
  background: var(--green);
  color: var(--bg-primary);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-green-lg);
  transition: all var(--transition-fast);
}

.whatsapp-btn:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 12px 36px rgba(0, 237, 100, 0.3);
}