styles.css

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

:root {
  --green:          #4CAF50;
  --green-dark:     #388E3C;
  --green-light:    #81C784;
  --shadow-glow:    0 4px 20px rgba(76,175,80,0.25);
  --shadow-glow-lg: 0 8px 40px rgba(76,175,80,0.3);
  --max-w:          1280px;
  --font-sans:      'Inter', sans-serif;
  --font-serif:     'Playfair Display', serif;

  --bg-page:        #FAFAFA;
  --bg-surface:     #ffffff;
  --bg-raised:      #F5F5F5;
  --bg-card:        #ffffff;
  --bg-subtle:      #F5F5F5;
  --bg-quote:       #E8F5E9;
  --bg-stat:        #E8F5E9;
  --bg-ach:         #FAFAFA;
  --bg-footer:      #212121;
  --text-base:      #212121;
  --text-muted:     #757575;
  --text-faint:     #9E9E9E;
  --text-strong:    #212121;
  --text-quote:     #424242;
  --text-ft:        #9ca3af;
  --text-ft-dim:    #6b7280;
  --border:         #EEEEEE;
  --border-md:      #E0E0E0;
  --shadow-soft:    0 4px 20px rgba(0,0,0,0.08);
  --nav-bg:         rgba(255,255,255,0.92);
  --drawer-bg:      #ffffff;
  --ring-color:     rgba(76,175,80,0.35);
  --ring-2-color:   rgba(76,175,80,0.15);
  --hl-sep:         #E0E0E0;
  --dot-border:     #ffffff;
}

[data-theme="dark"] {
  --bg-page:        #0d0d0d;
  --bg-surface:     #161616;
  --bg-raised:      #1c1c1c;
  --bg-card:        #1e1e1e;
  --bg-subtle:      #1a1a1a;
  --bg-quote:       #162016;
  --bg-stat:        #162016;
  --bg-ach:         #1a1a1a;
  --bg-footer:      #080808;
  --text-base:      #f0f0f0;
  --text-muted:     #a0a0a0;
  --text-faint:     #666666;
  --text-strong:    #f5f5f5;
  --text-quote:     #c0c0c0;
  --text-ft:        #666666;
  --text-ft-dim:    #4a4a4a;
  --border:         #272727;
  --border-md:      #303030;
  --shadow-soft:    0 4px 20px rgba(0,0,0,0.5);
  --shadow-glow:    0 4px 20px rgba(76,175,80,0.18);
  --shadow-glow-lg: 0 8px 40px rgba(76,175,80,0.22);
  --nav-bg:         rgba(18,18,18,0.95);
  --drawer-bg:      #1e1e1e;
  --ring-color:     rgba(76,175,80,0.25);
  --ring-2-color:   rgba(76,175,80,0.1);
  --hl-sep:         #2a2a2a;
  --dot-border:     #161616;
}

html { scroll-behavior: smooth; }

section[id] { scroll-margin-top: 96px; }

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-base);
  background: var(--bg-page);
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.3s ease, color 0.3s ease;
}

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

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-raised); }
::-webkit-scrollbar-thumb { background: var(--green); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--green-dark); }

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }

.gradient-text {
  background: linear-gradient(135deg, var(--green) 0%, var(--green-dark) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-badge {
  display: inline-block;
  padding: 6px 18px;
  background: var(--bg-quote);
  color: var(--green-dark);
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: 999px;
  margin-bottom: 16px;
}

.section-header { text-align: center; margin-bottom: 64px; }
.section-header h2 {
  font-family: var(--font-serif);
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 700;
  color: var(--text-base);
  margin-bottom: 16px;
}
.section-divider {
  width: 96px; height: 4px;
  background: var(--green);
  border-radius: 999px;
  margin: 0 auto 20px;
}
.section-sub {
  color: var(--text-muted);
  max-width: 520px;
  margin: 0 auto;
  font-size: 1.05rem;
}

.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible { opacity: 1; transform: none; }
.reveal-left  { opacity: 0; transform: translateX(-40px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal-left.visible  { opacity: 1; transform: none; }
.reveal-right { opacity: 0; transform: translateX(40px);  transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal-right.visible { opacity: 1; transform: none; }
.reveal-scale { opacity: 0; transform: scale(0.92);       transition: opacity 0.9s ease, transform 0.9s ease; }
.reveal-scale.visible { opacity: 1; transform: none; }

@keyframes spin-slow { to { transform: rotate(360deg); } }
@keyframes bounce-y  { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-8px)} }
@keyframes hero-in   { from{opacity:0;transform:translateY(28px)} to{opacity:1;transform:none} }
@keyframes intro-word-in { from { opacity: 0; transform: translateY(32px); } to { opacity: 1; transform: none; } }
@keyframes intro-name-exit {
  from { opacity: 1; transform: translate3d(0, 0, 0) scale(1); }
  to { opacity: 0; transform: translate3d(0, -120vh, 0) scale(1); }
}
@keyframes intro-screen-fade { from { opacity: 1; } to { opacity: 0; } }

#intro-screen {
  position: fixed; inset: 0; z-index: 1000; overflow: hidden;
  display: grid; place-items: center; pointer-events: none;
  background: var(--bg-page); color: var(--text-base);
}
.intro-name {
  display: flex; flex-direction: column; align-items: flex-start;
  font-family: var(--font-serif); font-size: clamp(3.4rem, 12vw, 10rem);
  font-weight: 700; line-height: 0.86; letter-spacing: -0.045em;
  text-transform: uppercase; transform-origin: center center;
}
.intro-name span { display: block; animation: intro-word-in 0.8s cubic-bezier(0.22, 1, 0.36, 1) both; }
.intro-name span:nth-child(2) { animation-delay: 0.12s; }
.intro-name span:nth-child(3) { animation-delay: 0.24s; }
#intro-screen.is-leaving { animation: intro-screen-fade 0.35s 1s ease forwards; }
#intro-screen.is-leaving .intro-name { animation: intro-name-exit 1.75s cubic-bezier(0.76, 0, 0.24, 1) forwards; }

#nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  transition: background 0.4s, box-shadow 0.4s, transform 0.4s, padding 0.4s;
  padding: 20px 0;
}
#nav.scrolled {
  background: var(--nav-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-soft);
  padding: 12px 0;
}
#nav.hidden-nav { transform: translateY(-100%); }

#nav > .container { max-width: none; padding-left: 5vw; padding-right: 5vw; }
.nav-inner { display: flex; align-items: center; }

.nav-logo {
  font-family: var(--font-serif);
  font-size: 1.3rem; font-weight: 700;
  color: var(--text-base);
  transition: color 0.2s;
}
.nav-logo:hover { color: var(--green); }

.nav-links { display: flex; align-items: center; gap: 32px; margin-left: auto; }
.nav-right { margin-left: 18px; }

.nav-link {
  position: relative;
  font-size: 0.9rem; font-weight: 500;
  color: var(--text-muted);
  transition: color 0.2s;
}
.nav-link::after {
  content: '';
  position: absolute; bottom: -4px; left: 50%; transform: translateX(-50%);
  width: 0; height: 2px; background: var(--green);
  border-radius: 999px; transition: width 0.3s ease;
}
.nav-link:hover, .nav-link.active { color: var(--green); }
.nav-link.active::after { width: 100%; }

.btn-resume {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 22px;
  background: var(--green); color: #fff;
  border-radius: 999px; font-size: 0.88rem; font-weight: 500;
  box-shadow: var(--shadow-glow);
  transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
}
.btn-resume:hover {
  background: var(--green-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-lg);
}

.theme-toggle {
  width: 40px; height: 40px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg-raised);
  color: var(--text-muted);
  border: 1px solid var(--border);
  transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.2s;
  flex-shrink: 0;
}
.theme-toggle:hover { background: var(--bg-quote); color: var(--green); transform: rotate(15deg); }
.theme-toggle svg { width: 18px; height: 18px; pointer-events: none; }
.theme-toggle .icon-sun  { display: none; }
.theme-toggle .icon-moon { display: block; }
[data-theme="dark"] .theme-toggle .icon-sun  { display: block; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

.nav-toggle {
  display: none; flex-direction: column; gap: 5px; padding: 6px;
}
.nav-toggle span {
  display: block; width: 24px; height: 2px;
  background: var(--text-base);
  border-radius: 2px; transition: all 0.3s;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

#mobile-menu {
  position: fixed; inset: 0; z-index: 90;
  pointer-events: none; opacity: 0; transition: opacity 0.3s;
}
#mobile-menu.open { opacity: 1; pointer-events: all; }
.mobile-overlay {
  position: absolute; inset: 0;
  background: rgba(0,0,0,0.3); backdrop-filter: blur(4px);
}
.mobile-drawer {
  position: absolute; top: 80px; left: 16px; right: 16px;
  background: var(--drawer-bg); border-radius: 20px;
  box-shadow: 0 12px 40px rgba(0,0,0,0.2);
  padding: 24px; display: flex; flex-direction: column; gap: 8px;
  transform: translateY(-12px); transition: transform 0.3s;
}
#mobile-menu.open .mobile-drawer { transform: none; }
.mob-link {
  padding: 13px 16px; border-radius: 12px;
  font-weight: 500; color: var(--text-muted);
  transition: background 0.2s, color 0.2s; text-align: left;
}
.mob-link:hover, .mob-link.active { background: var(--bg-quote); color: var(--green); }
.mob-resume {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  margin-top: 8px; padding: 13px 16px;
  background: var(--green); color: #fff;
  border-radius: 12px; font-weight: 500; transition: background 0.2s;
}
.mob-resume:hover { background: var(--green-dark); }

#home {
  position: relative; min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
  background: linear-gradient(135deg, var(--bg-page) 0%, var(--bg-surface) 50%, var(--bg-quote) 100%);
}
.hero-blob {
  position: absolute; border-radius: 50%; pointer-events: none; filter: blur(64px);
}
.hero-blob-1 { width: 300px; height: 300px; background: rgba(76,175,80,0.12); top: 10%; left: 5%; }
.hero-blob-2 { width: 400px; height: 400px; background: rgba(76,175,80,0.08); bottom: 10%; right: 5%; }
.hero-blob-3 { width: 700px; height: 700px; background: rgba(76,175,80,0.05); top: 50%; left: 50%; transform: translate(-50%,-50%); }
.hero-grid {
  position: absolute; inset: 0; opacity: 0.025;
  background-image: linear-gradient(#4CAF50 1px,transparent 1px), linear-gradient(90deg,#4CAF50 1px,transparent 1px);
  background-size: 60px 60px;
}
.hero-inner {
  position: relative; z-index: 2;
  width: 100%; max-width: var(--max-w);
  padding: 120px 24px 80px;
  display: grid; grid-template-columns: 1fr 420px;
  gap: 64px; align-items: center;
}
.hero-tag {
  display: inline-block; padding: 8px 20px;
  background: var(--bg-quote); color: var(--green-dark);
  font-size: 0.85rem; font-weight: 600; border-radius: 999px;
  margin-bottom: 24px;
  animation: hero-in 0.7s ease both;
}
.hero-h1 {
  font-family: var(--font-serif);
  font-size: clamp(2.8rem, 6vw, 4.5rem);
  font-weight: 700; line-height: 1.1;
  color: var(--text-base); margin-bottom: 12px;
  animation: hero-in 0.7s 0.1s ease both;
}
.hero-h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3.5vw, 2.5rem);
  font-weight: 600; margin-bottom: 24px;
  animation: hero-in 0.7s 0.2s ease both;
}
.hero-p {
  font-size: 1.1rem; color: var(--text-muted);
  max-width: 520px; margin-bottom: 36px; line-height: 1.8;
  animation: hero-in 0.7s 0.3s ease both;
}
.hero-btns {
  display: flex; gap: 16px; flex-wrap: wrap;
  margin-bottom: 40px;
  animation: hero-in 0.7s 0.4s ease both;
}
.btn-primary {
  padding: 14px 32px;
  background: var(--green); color: #fff;
  border-radius: 999px; font-weight: 500;
  box-shadow: var(--shadow-glow);
  transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
}
.btn-primary:hover { background: var(--green-dark); transform: translateY(-2px); box-shadow: var(--shadow-glow-lg); }
.btn-outline {
  padding: 14px 32px;
  background: var(--bg-surface); color: var(--text-base);
  border-radius: 999px; font-weight: 500;
  border: 2px solid var(--border-md);
  transition: border-color 0.2s, color 0.2s, transform 0.2s, background 0.2s;
}
.btn-outline:hover { border-color: var(--green); color: var(--green); transform: translateY(-2px); }
.hero-socials {
  display: flex; gap: 12px;
  animation: hero-in 0.7s 0.5s ease both;
}
.social-pill {
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg-surface); border-radius: 50%;
  box-shadow: var(--shadow-soft);
  color: var(--text-muted);
  transition: color 0.2s, box-shadow 0.2s, transform 0.2s, background 0.2s;
}
.social-pill:hover { color: var(--green); box-shadow: var(--shadow-glow); transform: translateY(-2px); }
.social-pill svg { width: 20px; height: 20px; }
.hero-img-wrap {
  display: flex; justify-content: center;
  animation: hero-in 1s 0.3s ease both;
}
.hero-img-rings {
  position: relative; display: flex; align-items: center; justify-content: center;
}
.ring { position: absolute; border-radius: 50%; }
.ring-1 { inset: -20px; border: 2px dashed var(--ring-color); animation: spin-slow 20s linear infinite; }
.ring-2 { inset: -40px; border: 1px solid var(--ring-2-color); animation: spin-slow 30s linear infinite reverse; }
.hero-img-circle {
  position: relative; z-index: 1;
  width: clamp(220px, 30vw, 340px);
  height: clamp(220px, 30vw, 340px);
  border-radius: 50%; overflow: hidden;
  border: 5px solid var(--bg-surface);
  box-shadow: 0 12px 48px rgba(0,0,0,0.18);
}
.hero-img-circle img { width: 100%; height: 100%; object-fit: cover; }
.scroll-indicator {
  position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%);
  z-index: 2; display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: var(--text-faint); font-size: 0.78rem; font-weight: 500;
  animation: hero-in 0.7s 0.7s ease both;
}
.scroll-indicator svg { animation: bounce-y 2s ease-in-out infinite; }
.scroll-indicator:hover { color: var(--green); }

#about {
  position: relative; padding: 120px 0;
  background: var(--bg-surface); overflow: hidden;
}
.about-bg-r { position: absolute; top: 0; right: 0; width: 33%; height: 100%; background: linear-gradient(to left, rgba(76,175,80,0.04), transparent); pointer-events: none; }
.about-bg-blob { position: absolute; bottom: 0; left: 0; width: 380px; height: 380px; background: rgba(76,175,80,0.06); border-radius: 50%; filter: blur(64px); pointer-events: none; }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.about-img-wrap { position: relative; }
.about-img-deco-1 {
  position: absolute; inset: 0; transform: translate(-12px, -12px);
  border: 2px solid rgba(76,175,80,0.2); border-radius: 18px; z-index: 0;
}
.about-img-deco-2 {
  position: absolute; inset: 0; transform: translate(12px, 12px);
  background: var(--bg-quote); border-radius: 18px; z-index: 0;
}
.about-img-inner {
  position: relative; z-index: 1;
  border-radius: 18px; overflow: hidden; box-shadow: 0 12px 40px rgba(0,0,0,0.14);
}
.about-img-inner img { width: 100%; aspect-ratio: 1; object-fit: cover; display: block; }
.about-img-inner::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.15), transparent);
}
.about-badge {
  position: absolute; bottom: -20px; right: -20px; z-index: 2;
  background: var(--bg-surface); padding: 16px 20px;
  border-radius: 14px; box-shadow: 0 8px 24px rgba(0,0,0,0.12);
  text-align: center;
}
.about-badge-num { display: block; font-size: 2rem; font-weight: 700; color: var(--green); line-height: 1; }
.about-badge-lbl { font-size: 0.78rem; color: var(--text-muted); }
.about-prose p { color: var(--text-muted); line-height: 1.85; margin-bottom: 20px; font-size: 1.05rem; }
.about-prose strong { color: var(--text-base); font-weight: 600; }
.about-quote {
  background: var(--bg-quote); border-radius: 14px; padding: 20px 24px;
  margin: 24px 0 32px;
}
.about-quote p { margin: 0 0 8px; font-style: italic; color: var(--text-quote); }
.about-quote span { color: var(--green); font-weight: 600; font-size: 0.9rem; }
.skills-title {
  font-family: var(--font-serif);
  font-size: 1.2rem; font-weight: 600; margin-bottom: 20px; color: var(--text-base);
}
.skills-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.skill-card {
  background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: 14px; padding: 16px;
  box-shadow: var(--shadow-soft);
  opacity: 0; transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease, box-shadow 0.3s, border-color 0.3s, background 0.3s;
}
.skill-card.visible { opacity: 1; transform: none; }
.skill-card:hover { box-shadow: var(--shadow-glow); border-color: rgba(76,175,80,0.25); transform: translateY(-3px); }
.skill-icon { margin-bottom: 8px; color: var(--green); }
.skill-icon svg { width: 24px; height: 24px; }
.skill-name { font-size: 0.85rem; font-weight: 500; color: var(--text-muted); margin-bottom: 8px; }
.skill-bar { height: 4px; background: var(--border); border-radius: 999px; overflow: hidden; }
.skill-fill { height: 100%; background: var(--green); border-radius: 999px; width: 0; transition: width 1s ease; }

#projects {
  position: relative; padding: 120px 0;
  background: var(--bg-page); overflow: hidden;
}
.projects-bg-l { position: absolute; top: 50%; left: -80px; width: 380px; height: 380px; background: rgba(76,175,80,0.06); border-radius: 50%; filter: blur(64px); transform: translateY(-50%); pointer-events: none; }
.projects-bg-r { position: absolute; bottom: 0; right: -80px; width: 380px; height: 380px; background: rgba(76,175,80,0.04); border-radius: 50%; filter: blur(64px); pointer-events: none; }
.projects-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.project-card {
  background: var(--bg-card); border-radius: 18px;
  overflow: hidden; box-shadow: var(--shadow-soft);
  transition: box-shadow 0.4s, transform 0.4s, background 0.3s;
  position: relative;
}
.project-card:hover { box-shadow: 0 12px 40px rgba(0,0,0,0.18); transform: translateY(-4px); }
.pc-top { height: 5px; }
.pc-body { padding: 24px; }
.pc-head { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 16px; }
.pc-icon {
  width: 48px; height: 48px; border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  color: #fff; flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  transition: transform 0.3s;
}
.project-card:hover .pc-icon { transform: scale(1.1); }
.pc-icon svg { width: 22px; height: 22px; }
.pc-link {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--bg-raised); color: var(--text-muted);
  display: flex; align-items: center; justify-content: center;
  transition: background 0.2s, color 0.2s, opacity 0.3s, transform 0.3s;
  opacity: 0; transform: translateX(10px);
}
.project-card:hover .pc-link { opacity: 1; transform: none; }
.pc-link:hover { background: var(--green); color: #fff; }
.pc-link svg { width: 16px; height: 16px; }
.pc-title {
  font-family: var(--font-serif);
  font-size: 1.1rem; font-weight: 600;
  color: var(--text-base); margin-bottom: 10px; line-height: 1.3;
  transition: color 0.2s;
}
.project-card:hover .pc-title { color: var(--green); }
.pc-desc {
  font-size: 0.88rem; color: var(--text-muted); line-height: 1.7;
  margin-bottom: 16px;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.pc-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.pc-tag {
  padding: 4px 12px;
  background: var(--bg-raised); color: var(--text-muted);
  font-size: 0.75rem; font-weight: 500; border-radius: 999px;
}
.pc-hover-overlay {
  position: absolute; inset: 0; opacity: 0;
  transition: opacity 0.3s; pointer-events: none; border-radius: 18px;
}
.project-card:hover .pc-hover-overlay { opacity: 0.04; }
.projects-footer { text-align: center; margin-top: 48px; }
.btn-ghost {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 32px; background: var(--bg-surface);
  color: var(--text-base); border-radius: 999px;
  border: 2px solid var(--border-md); font-weight: 500;
  box-shadow: var(--shadow-soft);
  transition: border-color 0.2s, color 0.2s, transform 0.2s, box-shadow 0.2s, background 0.2s;
}
.btn-ghost:hover { border-color: var(--green); color: var(--green); transform: translateY(-2px); box-shadow: var(--shadow-glow); }
.btn-ghost svg { width: 20px; height: 20px; }

#achievements {
  position: relative; padding: 120px 0;
  background: var(--bg-surface); overflow: hidden;
}
.ach-bg-tr { position: absolute; top: 40px; right: 40px; width: 260px; height: 260px; background: rgba(76,175,80,0.06); border-radius: 50%; filter: blur(48px); pointer-events: none; }
.ach-bg-bl { position: absolute; bottom: 40px; left: 40px; width: 260px; height: 260px; background: rgba(76,175,80,0.04); border-radius: 50%; filter: blur(48px); pointer-events: none; }
.ach-timeline-line {
  position: absolute; left: 50%; top: 360px; bottom: 250px; width: 2px;
  background: linear-gradient(to bottom, rgba(76,175,80,0.1), rgba(76,175,80,0.35), rgba(76,175,80,0.1));
}
.ach-list { position: relative; display: flex; flex-direction: column; gap: 0; }
.ach-item {
  position: relative; display: grid; grid-template-columns: 1fr 1fr;
  gap: 64px; margin-bottom: 56px; align-items: start;
}
.ach-item:last-child { margin-bottom: 0; }
.ach-dot {
  position: absolute; left: 50%; top: 32px; transform: translateX(-50%);
  width: 16px; height: 16px; background: var(--green);
  border-radius: 50%; border: 4px solid var(--bg-surface);
  box-shadow: var(--shadow-glow); z-index: 1;
}
.ach-card {
  background: var(--bg-ach); border-radius: 18px; padding: 28px 32px;
  cursor: pointer; transition: box-shadow 0.3s, background 0.3s;
}
.ach-card:hover, .ach-card.expanded { box-shadow: 0 8px 32px rgba(0,0,0,0.12); }
.ach-item:nth-child(odd)  .ach-card { grid-column: 1; }
.ach-item:nth-child(even) .ach-card { grid-column: 2; }
.ach-card-head { display: flex; align-items: flex-start; gap: 16px; margin-bottom: 14px; }
.ach-icon {
  width: 48px; height: 48px; background: rgba(76,175,80,0.1); border-radius: 14px;
  display: flex; align-items: center; justify-content: center; color: var(--green); flex-shrink: 0;
}
.ach-icon svg { width: 22px; height: 22px; }
.ach-card-title { font-family: var(--font-serif); font-size: 1.1rem; font-weight: 600; color: var(--text-base); margin-bottom: 4px; line-height: 1.3; }
.ach-org { font-size: 0.88rem; font-weight: 500; color: var(--green); }
.ach-period { display: flex; align-items: center; gap: 6px; color: var(--text-faint); font-size: 0.85rem; margin-bottom: 12px; }
.ach-period svg { width: 14px; height: 14px; }
.ach-desc { color: var(--text-muted); font-size: 0.92rem; line-height: 1.75; margin-bottom: 14px; }
.ach-highlights { overflow: hidden; max-height: 0; opacity: 0; transition: max-height 0.4s ease, opacity 0.4s ease; }
.ach-highlights.open { max-height: 200px; opacity: 1; }
.ach-hl-title { font-size: 0.85rem; font-weight: 600; color: var(--text-muted); margin-bottom: 10px; padding-top: 14px; border-top: 1px solid var(--hl-sep); }
.ach-hl-list { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.ach-hl-list li { display: flex; align-items: center; gap: 8px; font-size: 0.88rem; color: var(--text-muted); }
.ach-hl-list li svg { width: 16px; height: 16px; color: var(--green); flex-shrink: 0; }
.ach-hint { margin-top: 12px; font-size: 0.75rem; color: var(--text-faint); }
.ach-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 64px; }
.ach-stat {
  text-align: center; padding: 28px 16px;
  background: var(--bg-stat); border-radius: 18px;
}
.ach-stat-num { display: block; font-size: 2.4rem; font-weight: 700; color: var(--green); line-height: 1; margin-bottom: 6px; }
.ach-stat-lbl { font-size: 0.85rem; color: var(--text-muted); }

footer {
  position: relative; background: var(--bg-footer);
  color: #fff; overflow: hidden;
}
.ft-blob-l { position: absolute; top: 0; left: 25%; width: 380px; height: 380px; background: rgba(76,175,80,0.05); border-radius: 50%; filter: blur(64px); pointer-events: none; }
.ft-blob-r { position: absolute; bottom: 0; right: 25%; width: 380px; height: 380px; background: rgba(76,175,80,0.05); border-radius: 50%; filter: blur(64px); pointer-events: none; }
.ft-main { padding: 64px 0; }
.ft-grid { display: grid; grid-template-columns: 1.5fr 0.8fr 1.7fr; gap: 48px; }
.ft-brand h3 { font-family: var(--font-serif); font-size: 1.5rem; font-weight: 700; margin-bottom: 12px; }
.ft-brand p { color: var(--text-ft); line-height: 1.75; margin-bottom: 24px; max-width: 360px; font-size: 0.95rem; }
.ft-socials { display: flex; gap: 10px; }
.ft-social {
  width: 42px; height: 42px; border-radius: 50%;
  background: rgba(255,255,255,0.07);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-ft);
  transition: background 0.2s, color 0.2s, transform 0.2s;
}
.ft-social:hover { background: var(--green); color: #fff; transform: translateY(-2px); }
.ft-social svg { width: 18px; height: 18px; }
.ft-col h4 { font-weight: 600; font-size: 1rem; margin-bottom: 18px; }
.ft-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.ft-col ul li a, .ft-col ul li button {
  color: var(--text-ft); font-size: 0.92rem;
  transition: color 0.2s; background: none; border: none; cursor: pointer;
  text-align: left; font: inherit;
}
.ft-col ul li a:hover, .ft-col ul li button:hover { color: var(--green); }
.ft-contact-copy { color: var(--text-ft); font-size: 0.88rem; line-height: 1.6; margin: -4px 0 18px; }
.contact-form { display: flex; flex-direction: column; gap: 8px; }
.contact-form label { color: rgba(255,255,255,0.72); font-size: 0.75rem; font-weight: 600; letter-spacing: 0.04em; }
.contact-form input:not([type="hidden"]), .contact-form textarea {
  width: 100%; padding: 10px 12px; border: 1px solid rgba(255,255,255,0.14);
  border-radius: 10px; background: rgba(255,255,255,0.06); color: #fff;
  font: inherit; font-size: 0.84rem; outline: none; resize: vertical;
  transition: border-color 0.2s, background 0.2s, box-shadow 0.2s;
}
.contact-form input:not([type="hidden"]) { margin-bottom: 5px; }
.contact-form input::placeholder, .contact-form textarea::placeholder { color: rgba(255,255,255,0.38); }
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--green); background: rgba(255,255,255,0.09); box-shadow: 0 0 0 3px rgba(76,175,80,0.14); }
.contact-submit {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  margin-top: 7px; padding: 11px 16px; border: 0; border-radius: 10px;
  background: var(--green); color: #fff; font: inherit; font-size: 0.84rem;
  font-weight: 600; cursor: pointer; box-shadow: 0 8px 20px rgba(76,175,80,0.2);
  transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
}
.contact-submit:hover { background: var(--green-dark); transform: translateY(-2px); box-shadow: 0 10px 24px rgba(76,175,80,0.3); }
.contact-submit:disabled { opacity: 0.65; cursor: wait; transform: none; }
.contact-submit svg { transition: transform 0.2s; }
.contact-submit:hover svg { transform: translate(2px, -2px); }
.contact-status { min-height: 18px; margin: 5px 0 0; font-size: 0.78rem; line-height: 1.4; }
.contact-status.success { color: #86efac; }
.contact-status.error { color: #fca5a5; }
.ft-email-link, .ft-resume-link { display: block; color: var(--text-ft); font-size: 0.78rem; margin-top: 14px; transition: color 0.2s; }
.ft-resume-link { margin-top: 8px; }
.ft-email-link:hover, .ft-resume-link:hover { color: var(--green); }
.ft-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding: 20px 0; }
.ft-bottom-inner { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.ft-bottom-inner p { color: var(--text-ft-dim); font-size: 0.88rem; }
.ft-heart { display: flex; align-items: center; gap: 4px; color: var(--text-ft-dim); font-size: 0.88rem; }
.ft-heart svg { width: 14px; height: 14px; fill: #ef4444; color: #ef4444; }

#back-top {
  position: fixed; bottom: 32px; right: 32px; z-index: 200;
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--green); color: #fff;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-glow);
  opacity: 0; transform: translateY(16px);
  transition: opacity 0.3s, transform 0.3s, background 0.2s;
  pointer-events: none;
}
#back-top.show { opacity: 1; transform: none; pointer-events: all; }
#back-top:hover { background: var(--green-dark); }
#back-top svg { width: 20px; height: 20px; }

@media (max-width: 1024px) {
  #nav > .container { padding-left: 24px; padding-right: 24px; }
  .hero-inner { grid-template-columns: 1fr; text-align: center; padding-top: 100px; }
  .hero-text  { order: 2; }
  .hero-btns  { justify-content: center; }
  .hero-socials { justify-content: center; }
  .hero-p     { margin-left: auto; margin-right: auto; }
  .hero-img-wrap { order: 1; }
  .about-grid { grid-template-columns: 1fr; }
  .about-img-wrap { max-width: 420px; margin: 0 auto; }
  .projects-grid { grid-template-columns: repeat(2,1fr); }
  .ach-timeline-line { display: none; }
  .ach-item { grid-template-columns: 1fr; gap: 0; }
  .ach-dot  { display: none; }
  .ach-item:nth-child(odd)  .ach-card { grid-column: 1; }
  .ach-item:nth-child(even) .ach-card { grid-column: 1; }
  .ach-stats { grid-template-columns: repeat(2,1fr); }
  .ft-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .projects-grid { grid-template-columns: 1fr; }
  .skills-grid   { grid-template-columns: repeat(2,1fr); }
  .ach-stats     { grid-template-columns: repeat(2,1fr); }
  .ft-grid       { grid-template-columns: 1fr; }
  .nav-links     { display: none; }
  .nav-right     { gap: 8px; }
  .nav-toggle    { display: flex; }
  #back-top      { bottom: 20px; right: 20px; }
}

@media (max-width: 640px) {
  @keyframes intro-name-exit {
    from { opacity: 1; transform: translate3d(0, 0, 0) scale(1); }
    to { opacity: 0; transform: translate3d(0, -120vh, 0) scale(1); }
  }
}

@media (prefers-reduced-motion: reduce) {
  #intro-screen { display: none; }
}