/* ===== CUSTOM FONTS ===== */
@font-face {
  font-family: 'Agustina';
  src: url('fonts/Agustina.woff') format('woff');
  font-weight: normal;
  font-style: normal;
}

/* ===== VARIABLES & RESET ===== */
:root {
  --bg: #CBC4EB;
  --sidebar-bg: #EAE6F8;
  --accent: #5B2D9B;
  --accent-hover: #4A2080;
  --yellow: #F9BF3F;
  --text: #1C1C2E;
  --text-muted: #6B6B8A;
  --section-label: #7B5EA7;
  --card-bg: rgba(255,255,255,0.55);
  --card-border: rgba(255,255,255,0.7);
  --white: #fff;
  --topbar-height: 64px;
  --sidebar-width: 240px;
  --transition: 0.35s cubic-bezier(0.4,0,0.2,1);
  --font: 'Poppins', sans-serif;
}
[data-theme="dark"] {
  --bg: #1A1828;
  --sidebar-bg: #28243C;
  --accent: #9B72E0;
  --accent-hover: #B48FF5;
  --text: #E8E3FF;
  --text-muted: #9B94C5;
  --section-label: #B48FF5;
  --card-bg: rgba(40,36,60,0.85);
  --card-border: rgba(90,70,130,0.35);
}

*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  transition: background var(--transition), color var(--transition);
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

/* ===== LOADING SCREEN ===== */
#loading-screen {
  position: fixed; inset: 0;
  background: #ede8fb;
  display: flex;
  align-items: center; justify-content: center;
  z-index: 9999;
}
/* Break-open: loading screen punches forward then vanishes — revealing the site */
#loading-screen.ls-break {
  animation: lsBreakOpen 0.28s cubic-bezier(0.7, 0, 0.3, 1) forwards;
  pointer-events: none;
}
@keyframes lsBreakOpen {
  0%   { transform: scale(1);    opacity: 1; filter: brightness(1); }
  40%  { transform: scale(1.08); opacity: 1; filter: brightness(2.5); }
  100% { transform: scale(1.12); opacity: 0; filter: brightness(3); visibility: hidden; }
}
#loading-screen.hidden { display: none; }

/* Split-name layout */
.ls-name {
  display: flex;
  align-items: flex-end;                        /* align along baseline */
  font-family: 'Poppins', sans-serif;
  font-size: clamp(2.6rem, 11vw, 9rem);
  font-weight: 900;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #2a0a58;
  user-select: none;
}
/* Overflow:hidden wrapper = the invisible "floor line" text rises through */
.ls-name-wrap { overflow: hidden; display: inline-flex; }
.ls-left  { display: inline-block; transform: translateY(110%); }
.ls-right { display: inline-block; transform: translateY(110%); }
.ls-left.ls-in  { animation: lsRiseUp 0.65s cubic-bezier(0.22,1,0.36,1) forwards; }
.ls-right.ls-in { animation: lsRiseUp 0.65s cubic-bezier(0.22,1,0.36,1) 0.08s forwards; }
@keyframes lsRiseUp { to { transform: translateY(0); } }

.ls-icons-slot {
  width: 0;                                     /* starts collapsed */
  height: clamp(60px, 10vw, 120px);
  position: relative;
  margin: 0;
  flex-shrink: 0;
  overflow: hidden;
  transition: width 0.35s cubic-bezier(0.22,1,0.36,1), margin 0.35s;
}
.ls-icons-slot.ls-slot-open {
  width: clamp(60px, 10vw, 120px);
  margin: 0 0.08em;
}
.ls-icon {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: contain;
  opacity: 0;
  transition: opacity 0.04s;
  filter: drop-shadow(0 0 6px rgba(90,45,155,0.25));
}
.ls-icon.ls-show { opacity: 1; }

/* ===== TOPBAR ===== */
#topbar {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--topbar-height);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 1.5rem;
  z-index: 800;
}
.topbar-brand {
  display: flex;
  align-items: center;
  transition: opacity var(--transition), transform var(--transition);
}
.brand-name {
  font-family: 'Agustina', 'Dancing Script', cursive;
  font-size: 1.75rem;
  font-weight: bold;
  font-style: italic;
  color: var(--accent);
  letter-spacing: 0.02em;
  white-space: nowrap;
}
/* Topbar gains bg once hero starts zooming */
#topbar { background: transparent; transition: background var(--transition); }
#topbar.topbar-scrolled { background: var(--bg); }
@media (max-width: 600px) { .brand-name { font-size: 1.25rem; } }
body.sidebar-open .topbar-brand {
  opacity: 0; pointer-events: none; transform: translateX(-20px);
}
.topbar-right { display: flex; align-items: center; gap: 0.5rem; }

#theme-toggle {
  width: 40px; height: 40px;
  border-radius: 50%;
  border: none; cursor: pointer;
  background: rgba(91,45,155,0.12);
  color: var(--accent);
  font-size: 1rem;
  display: flex; align-items: center; justify-content: center;
  transition: var(--transition);
}
#theme-toggle:hover { background: var(--accent); color: #fff; }

#hamburger {
  width: 44px; height: 44px;
  border-radius: 50%;
  border: none; cursor: pointer;
  background: var(--accent);
  color: #fff;
  font-size: 1.1rem;
  display: flex; align-items: center; justify-content: center;
  transition: var(--transition);
}
#hamburger:hover { background: var(--accent-hover); transform: scale(1.07); }

/* ===== SIDEBAR ===== */
#sidebar {
  position: fixed; top: 0; left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background: var(--sidebar-bg);
  z-index: 900;
  display: flex; flex-direction: column; align-items: center;
  padding: 2rem 1.2rem 1.5rem;
  overflow-y: auto;
  transform: translateX(calc(-1 * var(--sidebar-width)));
  transition: transform var(--transition);
  box-shadow: 4px 0 30px rgba(0,0,0,0.1);
}
body.sidebar-open #sidebar { transform: translateX(0); }

.sidebar-profile-img {
  width: 130px; height: 130px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--accent);
  margin-bottom: 0.85rem;
}
.sidebar-name {
  font-size: 1rem; font-weight: 700;
  text-align: center;
  color: var(--text);
  margin-bottom: 0.75rem;
}
.sidebar-social {
  display: flex; gap: 0.45rem;
  margin-bottom: 1.4rem;
  flex-wrap: wrap; justify-content: center;
}
.sidebar-social a {
  width: 30px; height: 30px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.7rem;
  transition: var(--transition);
}
.sidebar-social a:hover { background: var(--accent-hover); transform: scale(1.12); }

#sidebar-nav { width: 100%; }
#sidebar-nav ul { display: flex; flex-direction: column; gap: 0.1rem; }
#sidebar-nav a {
  display: block;
  padding: 0.5rem 0.7rem;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
  border-radius: 6px;
  transition: var(--transition);
  text-align: center;
}
#sidebar-nav a:hover,
#sidebar-nav a.active {
  color: var(--accent);
  background: rgba(91,45,155,0.09);
}

/* ===== OVERLAY ===== */
#sidebar-overlay {
  position: fixed; inset: 0;
  background: rgba(28,24,46,0.42);
  z-index: 850;
  opacity: 0; pointer-events: none;
  transition: opacity var(--transition);
}
body.sidebar-open #sidebar-overlay { opacity: 1; pointer-events: all; }

/* ===== MAIN SHIFT ===== */
/* Sidebar is pure overlay — main content stays in place */
#main { transition: none; }

/* ===== HERO WRAPPER ===== */
#hero-wrapper {
  position: relative;
  height: 280vh;
  background: var(--bg);
}

/* ===== HERO ===== */
#hero {
  position: sticky;
  top: 0;
  height: 100vh;
  z-index: 2;
  /* No overflow:hidden — page bg shows around scaled video-zone */
}

/* Only the video+illustration scales; everything else stays full-size */
#hero-video-zone {
  position: absolute;
  inset: 0;
  overflow: hidden;
  transform-origin: center center;
  will-change: transform;
  z-index: 1;
}

/* ===== MARQUEES ===== */
.hero-marquee {
  overflow: hidden;
  width: 100%;
  z-index: 4;
  pointer-events: none;
  background: rgba(0,0,0,0.22);
  backdrop-filter: blur(3px);
}
/* top marquee: absolutely placed below topbar */
.hero-marquee-top {
  position: absolute;
  left: 0;
  top: var(--topbar-height);
}
/* bottom marquee: anchored just above the yellow bar (~155px accounts for 2-line tagline + buttons) */
.hero-marquee-bottom {
  position: absolute;
  left: 0; bottom: 155px;
  z-index: 4;
}
.marquee-track {
  display: flex;
  width: max-content;
}
.marquee-fwd { animation: marquee-fwd 30s linear infinite; }
.marquee-bwd { animation: marquee-bwd 30s linear infinite; }
@keyframes marquee-fwd {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
@keyframes marquee-bwd {
  0%   { transform: translateX(-50%); }
  100% { transform: translateX(0); }
}
.marquee-track span {
  display: inline-block;
  white-space: nowrap;
  padding: 0.38rem 1rem;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.9);
}
.hero-video {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  z-index: 0;
}
.hero-overlay {
  position: absolute; inset: 0;
  background: transparent;
  z-index: 1;
}
.hero-content {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex; align-items: center; justify-content: center;
  padding-top: var(--topbar-height);
}
.hero-illustration {
  max-width: 900px; width: 100%;
  object-fit: contain;
}
.hero-statement {
  position: absolute;
  top: calc(var(--topbar-height) + 2.5rem);
  right: 0;
  width: clamp(300px, 42vw, 560px);
  background: var(--yellow);
  padding: 1.5rem 2.5rem 1.5rem 2rem;
  font-size: clamp(1.15rem, 2.4vw, 1.65rem);
  font-weight: 700;
  color: #1C1C2E;
  white-space: normal;
  line-height: 1.55;
  z-index: 5;
  min-height: 4rem;
}
.typed-im { /* static "I'm " prefix — same style as rest */ }
.blink { animation: blink 0.9s step-end infinite; }
@keyframes blink { 50% { opacity: 0; } }

.hero-bar {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  z-index: 3;
  background: var(--yellow);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  padding: 1.1rem 2rem;
}
.hero-tagline {
  font-size: clamp(1.15rem, 2.4vw, 1.7rem);
  font-weight: 700;
  color: #1C1C2E;
  max-width: 65%;
}
.hero-buttons { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.btn-hero {
  padding: 0.65rem 1.3rem;
  background: var(--accent);
  color: #fff;
  border: 2px solid var(--accent);
  border-radius: 4px;
  font-size: 0.8rem; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex; align-items: center; gap: 0.4rem;
  font-family: var(--font);
}
.btn-hero:hover { background: var(--accent-hover); border-color: var(--accent-hover); transform: translateY(-2px); }

/* Hero is immune to dark mode — video + yellow bar stay identical */
[data-theme="dark"] .hero-statement { background: #F9BF3F; color: #1C1C2E; }
[data-theme="dark"] .hero-bar { background: #F9BF3F; }
[data-theme="dark"] .hero-tagline { color: #1C1C2E; }
[data-theme="dark"] .btn-hero { background: #5B2D9B; border-color: #5B2D9B; color: #fff; }
[data-theme="dark"] .btn-hero:hover { background: #4A2080; border-color: #4A2080; }

/* ===== SECTION SHARED ===== */
.section { padding: 5rem 3rem; }
.section-inner {
  max-width: 1100px; margin: 0 auto;
  position: relative;                     /* for bg-word pseudo-element */
}
/* Noah-style large translucent background word */
.section-inner[data-bg]::before {
  content: attr(data-bg);
  position: absolute;
  top: -0.5rem;
  left: 50%;
  transform: translateX(-50%);
  font-size: clamp(4rem, 14vw, 11rem);
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  opacity: 0.055;
  pointer-events: none;
  white-space: nowrap;
  line-height: 1;
  z-index: 0;
  user-select: none;
}
.section-label {
  font-size: 0.73rem; font-weight: 600;
  letter-spacing: 0.28em; text-transform: uppercase;
  color: var(--section-label);
  margin-bottom: 0.45rem;
  text-align: center;                     /* centered — Noah style */
  position: relative; z-index: 1;
}
.section-title {
  font-size: clamp(1.5rem, 2.8vw, 2rem);
  font-weight: 800;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--text);
  margin-bottom: 2.5rem;
  text-align: center;                     /* centered */
  position: relative; z-index: 1;
}

/* ===== ABOUT ===== */
#about { background: var(--bg); }
.about-bio p {
  font-size: 1.08rem; line-height: 1.95;
  color: var(--text);
  margin-bottom: 1.1rem; text-align: justify;
}
.about-bio strong { color: var(--accent); }

.skills-area { margin-top: 3rem; }
.skills-icons-grid {
  display: flex; flex-wrap: wrap;
  gap: 1.8rem 2rem;
  margin-bottom: 2.5rem;
}
.skill-icon-item {
  display: flex; flex-direction: column;
  align-items: center; gap: 0.45rem;
}
.skill-icon-item img {
  width: 62px; height: 62px;
  object-fit: contain;
  transition: var(--transition);
}
.skill-icon-item:hover img { transform: translateY(-5px) scale(1.1); }
.skill-icon-item span {
  font-size: 0.84rem; font-weight: 600;
  color: var(--text); text-align: center;
}
.skills-text p {
  font-size: 1.02rem; line-height: 1.9;
  color: var(--text); margin-bottom: 0.6rem;
}

/* ===== STATS ===== */
/* ===== PARALLAX STRIP (replaces stats counters) ===== */
/* Full-width image band — as you scroll past, the image reveals itself */
.parallax-strip {
  width: 100%;
  height: 38vh;          /* tall enough to see the landscape */
  min-height: 220px;
  background: url('images/cover_bg_1.jpg') center / cover;
  background-attachment: fixed;  /* the parallax magic */
  position: relative;
}
/* Thin gradient fade at top & bottom so it blends with adjacent sections */
.parallax-strip::before,
.parallax-strip::after {
  content: '';
  position: absolute;
  left: 0; right: 0;
  height: 48px;
  pointer-events: none;
}
.parallax-strip::before {
  top: 0;
  background: linear-gradient(to bottom, var(--bg), transparent);
}
.parallax-strip::after {
  bottom: 0;
  background: linear-gradient(to top, var(--bg), transparent);
}

/* ===== CARD (education, experience base) ===== */
.card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 1.5rem;
  backdrop-filter: blur(8px);
  transition: var(--transition);
  position: relative; overflow: hidden;
}
.card::before {
  content: ''; position: absolute;
  left: 0; top: 0; bottom: 0; width: 4px;
  background: var(--accent);
  border-radius: 4px 0 0 4px;
}
.card:hover { transform: translateY(-4px); box-shadow: 0 12px 28px rgba(91,45,155,0.18); }
.card-label {
  font-size: 0.72rem; font-weight: 600;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--section-label); margin-bottom: 0.35rem;
}
.card-title { font-size: 1rem; font-weight: 700; color: var(--text); margin-bottom: 0.25rem; line-height: 1.4; }
.card-title a { color: var(--accent); }
.card-title a:hover { text-decoration: underline; }
.card-subtitle { font-size: 0.84rem; font-style: italic; color: var(--text-muted); margin-bottom: 0.75rem; }
.card-body { font-size: 0.98rem; line-height: 1.8; color: var(--text); }
.card-body ul { padding-left: 1.1rem; }
.card-body ul li { list-style: disc; margin-bottom: 0.3rem; }
.card-body strong { color: var(--accent); }
.btn-small {
  padding: 0.28rem 0.8rem;
  font-size: 0.7rem; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
  border: 2px solid var(--accent);
  border-radius: 4px; cursor: pointer;
  transition: var(--transition);
  color: var(--accent); background: transparent;
  font-family: var(--font);
}
.btn-small:hover { background: var(--accent); color: #fff; }

/* ===== EDUCATION ===== */
#education { background: rgba(91,45,155,0.04); }
.edu-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px,1fr)); gap: 1.5rem; }
.edu-logo { width: 70px; height: 48px; object-fit: contain; margin: 0.5rem 0 0.4rem; }
.edu-courses { font-size: 0.82rem; line-height: 1.75; color: var(--text-muted); }
.edu-courses strong { color: var(--text); display: block; margin-top: 0.5rem; font-size: 0.85rem; }
.edu-courses ul { padding-left: 1rem; }
.edu-courses ul li { list-style: disc; margin-bottom: 0.2rem; }

/* ===== EXPERIENCE ===== */
#experience { background: var(--bg); }
.timeline { position: relative; max-width: 900px; }
.timeline::before {
  content: ''; position: absolute;
  left: 19px; top: 0; bottom: 0;
  width: 2px; background: rgba(91,45,155,0.2);
}
.timeline-item { display: flex; gap: 1.4rem; margin-bottom: 2rem; }
.timeline-dot {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--accent); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.85rem; flex-shrink: 0;
  position: relative; z-index: 1; margin-top: 0.4rem;
}
.timeline-card { flex: 1; }

/* ===== PROJECTS ===== */
#projects { background: rgba(91,45,155,0.04); }
.projects-grid {
  display: grid; grid-template-columns: repeat(3,1fr); gap: 1.5rem;
}
.project-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px; padding: 1.4rem;
  backdrop-filter: blur(8px);
  transition: var(--transition);
  display: flex; flex-direction: column;
}
.project-card:hover { transform: translateY(-5px); box-shadow: 0 14px 32px rgba(91,45,155,0.2); }
.project-icon {
  width: 42px; height: 42px; border-radius: 10px;
  background: var(--accent); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem; margin-bottom: 0.85rem;
}
.project-title { font-size: 0.93rem; font-weight: 700; color: var(--text); margin-bottom: 0.45rem; line-height: 1.4; }
.project-desc { font-size: 0.83rem; line-height: 1.7; color: var(--text-muted); flex: 1; margin-bottom: 1rem; }
.project-link {
  font-size: 0.76rem; font-weight: 700; color: var(--accent);
  letter-spacing: 0.08em; text-transform: uppercase;
  display: inline-flex; align-items: center; gap: 0.3rem;
  transition: var(--transition);
}
.project-link:hover { gap: 0.6rem; color: var(--accent-hover); }

/* ===== TABS (publications & achievements) ===== */
#publications { background: var(--bg); }
#achievements { background: rgba(91,45,155,0.04); }
.tab-nav {
  display: flex; gap: 0.3rem; flex-wrap: wrap;
  margin-bottom: 2rem;
  border-bottom: 2px solid rgba(91,45,155,0.14);
  padding-bottom: 0.5rem;
}
.tab-btn {
  padding: 0.42rem 1rem;
  font-size: 0.78rem; font-weight: 700;
  letter-spacing: 0.06em;
  border: 2px solid transparent;
  border-radius: 6px; cursor: pointer;
  background: transparent; color: var(--text-muted);
  transition: var(--transition); font-family: var(--font);
}
.tab-btn.active, .tab-btn:hover {
  color: var(--accent); border-color: var(--accent);
  background: rgba(91,45,155,0.09);
}
.tab-panel { display: none; }
.tab-panel.active { display: block; }

.pub-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-left: 4px solid var(--accent);
  border-radius: 0 10px 10px 0;
  padding: 1.2rem 1.5rem;
  margin-bottom: 1.2rem;
  backdrop-filter: blur(8px);
  transition: var(--transition);
}
.pub-card:hover { transform: translateX(4px); box-shadow: 4px 6px 20px rgba(91,45,155,0.13); }
.pub-title { font-size: 0.96rem; font-weight: 700; color: var(--text); margin-bottom: 0.4rem; line-height: 1.5; }
.pub-title a { color: var(--accent); }
.pub-title a:hover { text-decoration: underline; }
.pub-authors { font-size: 0.83rem; color: var(--text-muted); margin-bottom: 0.25rem; }
.pub-year { font-size: 0.75rem; color: var(--section-label); font-weight: 600; }
.pub-actions { display: flex; gap: 0.5rem; margin-top: 0.8rem; flex-wrap: wrap; }

.ach-item {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-left: 4px solid var(--yellow);
  border-radius: 0 10px 10px 0;
  padding: 1rem 1.4rem;
  margin-bottom: 1rem;
  backdrop-filter: blur(8px);
  transition: var(--transition);
}
.ach-item:hover { transform: translateX(4px); }
.ach-title { font-size: 0.96rem; font-weight: 700; color: var(--text); margin-bottom: 0.35rem; }
.ach-desc { font-size: 0.84rem; color: var(--text-muted); line-height: 1.7; }
.ach-list li {
  padding: 0.4rem 0;
  border-bottom: 1px solid rgba(91,45,155,0.09);
  font-size: 0.88rem; font-style: italic;
  color: var(--text);
}
.ach-list li:last-child { border-bottom: none; }

/* ===== CURRENT WORK ===== */
#current-work { background: var(--bg); }
.cw-block { margin-bottom: 2rem; }
.cw-block h3 {
  font-size: 0.95rem; font-weight: 800; font-style: italic;
  color: var(--accent); margin-bottom: 0.6rem;
  text-transform: uppercase; letter-spacing: 0.07em;
}
.cw-block p { font-size: 0.9rem; line-height: 1.85; color: var(--text); text-align: justify; }

/* ===== BLOG ===== */
#blog { background: rgba(91,45,155,0.04); }
.blog-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1.5rem; }
.blog-card {
  background: var(--card-bg); border: 1px solid var(--card-border);
  border-radius: 12px; overflow: hidden;
  backdrop-filter: blur(8px); transition: var(--transition);
}
.blog-card:hover { transform: translateY(-5px); box-shadow: 0 14px 32px rgba(91,45,155,0.18); }
.blog-card-img { width: 100%; height: 175px; object-fit: cover; }
.blog-card-body { padding: 1.1rem; }
.blog-category {
  font-size: 0.68rem; font-weight: 700;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 0.35rem;
}
.blog-card-title {
  font-size: 0.93rem; font-weight: 700;
  color: var(--text); line-height: 1.4;
  margin-bottom: 0.45rem; transition: var(--transition);
}
.blog-card:hover .blog-card-title { color: var(--accent); }
.blog-card-meta { font-size: 0.74rem; color: var(--text-muted); }

/* ===== CONTACT ===== */
#contact { background: var(--bg); }
.contact-grid { display: grid; grid-template-columns: 1fr 1.6fr; gap: 3rem; align-items: start; }
.contact-info-item { display: flex; align-items: center; gap: 1rem; margin-bottom: 1.4rem; }
.contact-icon {
  width: 42px; height: 42px; border-radius: 50%;
  background: rgba(91,45,155,0.1); color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem; flex-shrink: 0;
}
.contact-info-item p { font-size: 0.9rem; color: var(--text); }
.contact-info-item a { color: var(--accent); }
.contact-info-item a:hover { text-decoration: underline; }

.contact-form { display: flex; flex-direction: column; gap: 1rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.contact-form input, .contact-form textarea {
  width: 100%; padding: 0.75rem 1rem;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  font-family: var(--font); font-size: 0.9rem;
  color: var(--text); transition: var(--transition);
  backdrop-filter: blur(8px);
}
.contact-form input::placeholder, .contact-form textarea::placeholder { color: var(--text-muted); }
.contact-form input:focus, .contact-form textarea:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(91,45,155,0.11);
}
.contact-form textarea { resize: vertical; min-height: 140px; }
.btn-submit {
  padding: 0.75rem 2rem; background: var(--accent); color: #fff;
  border: none; border-radius: 8px;
  font-family: var(--font); font-size: 0.9rem; font-weight: 700;
  letter-spacing: 0.06em; cursor: pointer;
  transition: var(--transition); align-self: flex-start;
}
.btn-submit:hover { background: var(--accent-hover); transform: translateY(-2px); }

/* ===== FOOTER ===== */
footer {
  text-align: center; padding: 1.4rem;
  font-size: 0.8rem; color: var(--text-muted);
  background: rgba(91,45,155,0.06);
  border-top: 1px solid rgba(91,45,155,0.1);
}

/* ===== MODAL ===== */
.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(28,24,46,0.62);
  z-index: 2000;
  display: flex; align-items: center; justify-content: center;
  padding: 1rem;
  opacity: 0; pointer-events: none;
  transition: opacity 0.3s ease;
}
.modal-backdrop.open { opacity: 1; pointer-events: all; }
.modal-box {
  background: var(--sidebar-bg);
  border-radius: 14px; padding: 2rem;
  max-width: 680px; width: 100%;
  max-height: 80vh; overflow-y: auto;
  position: relative;
  transform: translateY(24px);
  transition: transform 0.3s ease;
  box-shadow: 0 20px 60px rgba(0,0,0,0.28);
}
.modal-backdrop.open .modal-box { transform: translateY(0); }
.modal-close {
  position: absolute; top: 1rem; right: 1rem;
  background: transparent; border: none;
  font-size: 1.3rem; cursor: pointer;
  color: var(--text-muted); transition: var(--transition);
}
.modal-close:hover { color: var(--accent); transform: scale(1.2); }
.modal-title { font-size: 1.05rem; font-weight: 700; color: var(--text); margin-bottom: 1rem; padding-right: 2rem; }
.modal-body { font-size: 0.88rem; line-height: 1.8; color: var(--text); }

/* ===== SCROLL ANIMATIONS ===== */
.anim {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.65s cubic-bezier(0.22,1,0.36,1), transform 0.65s cubic-bezier(0.22,1,0.36,1);
}
.anim.from-left  { transform: translateX(-40px); }
.anim.from-right { transform: translateX(40px); }
.anim.from-scale { transform: scale(0.92); }
.anim.visible    { opacity: 1; transform: translate(0) scale(1); }

/* ===== HEADING LETTER-BY-LETTER ANIMATION ===== */
/* Each letter climbs UP from below into position on scroll-down.
   On scroll-back-up, letters drop back down — fully bidirectional. */
.hd-clip {
  /* Container: no own animation — individual .letter spans handle it */
}
.letter-wrap {
  display: inline-block;
  overflow: hidden;       /* clips the letter below the baseline */
  vertical-align: bottom;
  line-height: 1.15;
}
.letter {
  display: inline-block;
  transform: translateY(110%);
  opacity: 0;
  transition: transform 0.55s cubic-bezier(0.22, 1, 0.36, 1),
              opacity   0.45s ease;
}
/* Visible: letters climb up into place */
.hd-clip.visible .letter {
  transform: translateY(0);
  opacity: 1;
}
/* Exit (scroll back up): letters drop down fast, delay reset so they all leave together */
.hd-clip.exiting .letter {
  transform: translateY(110%);
  opacity: 0;
  transition-delay: 0s !important;
  transition-duration: 0.22s !important;
  transition-timing-function: ease-in !important;
}

/* ===== EXPERIENCE / EDUCATION TOGGLE ===== */
.exp-edu-toggle {
  display: flex;
  background: rgba(91,45,155,0.09);
  border-radius: 50px;
  padding: 5px;
  margin-bottom: 2.5rem;
  width: 100%;
}
.etoggle-btn {
  flex: 1;
  padding: 0.62rem 2rem;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  font-size: 0.86rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  background: transparent;
  color: var(--text-muted);
  transition: var(--transition);
  font-family: var(--font);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  white-space: nowrap;
}
.etoggle-btn.active {
  background: #fff;
  color: var(--text);
  box-shadow: 0 2px 12px rgba(0,0,0,0.13);
}
[data-theme="dark"] .etoggle-btn.active {
  background: var(--sidebar-bg);
  color: var(--text);
}
.etoggle-panel { display: none; }
.etoggle-panel.active { display: block; }

/* ===== AC-CARD (Alex Chen–style experience / education cards) ===== */
.ac-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  padding: 1.6rem 1.8rem;
  margin-bottom: 1.4rem;
  backdrop-filter: blur(8px);
  transition: var(--transition);
}
.ac-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(91,45,155,0.16);
}
.ac-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--card-border);
}
.ac-left { flex: 1; }
.ac-right { text-align: right; flex-shrink: 0; }
.ac-title {
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.28rem;
  line-height: 1.4;
}
.ac-title a { color: var(--accent); }
.ac-title a:hover { text-decoration: underline; }
.ac-org {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-muted);
}
.ac-date {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.18rem;
}
.ac-location {
  font-size: 0.8rem;
  color: var(--text-muted);
}
.ac-achievements { margin-top: 0.5rem; }
.ac-achieve-label {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text);
  margin-bottom: 0.5rem;
}
.ac-achievements ul { padding-left: 1.2rem; }
.ac-achievements ul li {
  list-style: disc;
  font-size: 0.87rem;
  line-height: 1.72;
  color: var(--text);
  margin-bottom: 0.28rem;
}
.ac-achievements ul li strong { color: var(--accent); }
.ac-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 1rem;
  padding-top: 0.8rem;
  border-top: 1px solid var(--card-border);
}
.ac-tag {
  padding: 0.22rem 0.8rem;
  background: rgba(91,45,155,0.07);
  border: 1px solid rgba(91,45,155,0.18);
  border-radius: 20px;
  font-size: 0.73rem;
  font-weight: 600;
  color: var(--text);
  transition: var(--transition);
}
.ac-tag:hover { background: var(--accent); color: #fff; border-color: var(--accent); }

/* ===== CARD LOGO (Experience / Education) ===== */
.ac-logo-wrap {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  margin-bottom: 1rem;
  padding-bottom: 0.9rem;
  border-bottom: 1px solid var(--card-border);
}
.ac-logo {
  max-height: 72px;
  max-width: 200px;
  object-fit: contain;
  border-radius: 8px;
}

/* ===== CERT ITEM WITH LOGO (Certifications) ===== */
.ach-cert-flex {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}
.cert-logo {
  width: 36px;
  height: 36px;
  object-fit: contain;
  flex-shrink: 0;
  border-radius: 5px;
}

/* ach-title links */
.ach-title a { color: var(--accent); }
.ach-title a:hover { text-decoration: underline; }

/* ===== HERO ENTRANCE ANIMATIONS ===== */
/* Elements start invisible — loading screen covers them while they wait */
#hero .hero-marquee-top,
#hero .hero-marquee-bottom,
#hero .hero-statement,
#hero .hero-bar,
#hero .hero-content { opacity: 0; }

@keyframes heroFadeDown {
  from { opacity: 0; transform: translateY(-24px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes heroFadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes heroSlideRight {
  from { opacity: 0; transform: translateX(54px); }
  to   { opacity: 1; transform: translateX(0); }
}
@keyframes heroScaleIn {
  from { opacity: 0; transform: scale(0.93); }
  to   { opacity: 1; transform: scale(1); }
}
.hero-animated .hero-marquee-top {
  animation: heroFadeDown 0.7s cubic-bezier(0.22,1,0.36,1) both;
}
.hero-animated .hero-marquee-bottom {
  animation: heroFadeUp 0.7s cubic-bezier(0.22,1,0.36,1) both;
  animation-delay: 0.25s;
}
.hero-animated .hero-content {
  animation: heroScaleIn 1.1s cubic-bezier(0.22,1,0.36,1) both;
  animation-delay: 0.1s;
}
.hero-animated .hero-statement {
  animation: heroSlideRight 0.95s cubic-bezier(0.22,1,0.36,1) both;
  animation-delay: 0.4s;
}
.hero-animated .hero-bar {
  animation: heroFadeUp 0.95s cubic-bezier(0.22,1,0.36,1) both;
  animation-delay: 0.6s;
}

/* ===== PROJECT CARDS — Alex Chen style ===== */
.projects-grid-ac {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.project-card-ac {
  background: #fff;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 2px 14px rgba(0,0,0,0.09);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
[data-theme="dark"] .project-card-ac {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  box-shadow: none;
}
.project-card-ac:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 38px rgba(0,0,0,0.16);
}
.pc-image-wrap {
  width: 100%; height: 190px;
  overflow: hidden;
  flex-shrink: 0;
  position: relative;
  cursor: zoom-in;
}
/* Zoom-in on hover — like hluebbering.github.io projects */
.pc-image-wrap:hover .pc-image {
  transform: scale(1.08);
}
.pc-image {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  position: relative; z-index: 1;
  transition: transform 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
/* Gradient fallbacks (shown when no image file exists) */
.pc-img-cva      { background: linear-gradient(135deg,#667eea 0%,#764ba2 100%); }
.pc-img-gene     { background: linear-gradient(135deg,#11998e 0%,#38ef7d 100%); }
.pc-img-fraud    { background: linear-gradient(135deg,#2193b0 0%,#6dd5ed 100%); }
.pc-img-logs     { background: linear-gradient(135deg,#1a1a2e 0%,#0f3460 100%); }
.pc-img-paper    { background: linear-gradient(135deg,#f46b45 0%,#eea849 100%); }
.pc-img-bayesian { background: linear-gradient(135deg,#4facfe 0%,#00f2fe 100%); }

.pc-body {
  padding: 1.2rem 1.3rem 0.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.pc-title {
  font-size: 0.97rem; font-weight: 700;
  color: var(--text); margin-bottom: 0.5rem; line-height: 1.4;
}
.pc-desc {
  font-size: 0.83rem; line-height: 1.68;
  color: var(--text-muted); margin-bottom: 0.85rem; flex: 1;
}
.pc-tags {
  display: flex; flex-wrap: wrap; gap: 0.35rem; margin-bottom: 0.85rem;
}
.pc-tag {
  padding: 0.2rem 0.65rem;
  background: rgba(91,45,155,0.07);
  border: 1px solid rgba(91,45,155,0.15);
  border-radius: 20px;
  font-size: 0.72rem; font-weight: 600;
  color: var(--text);
}
.pc-tag-more {
  background: var(--accent);
  color: #fff !important;
  border-color: var(--accent);
}
.pc-metrics { list-style: none; margin-bottom: 0.9rem; padding: 0; }
.pc-metrics li {
  font-size: 0.8rem; color: var(--text-muted); padding: 0.15rem 0;
}
.pc-metrics li::before { content: '• '; color: var(--accent); }
.pc-footer {
  display: flex; gap: 0.6rem;
  padding: 0.9rem 1.3rem 1.2rem;
  border-top: 1px solid rgba(91,45,155,0.1);
  margin-top: auto;
}
.pc-btn-code {
  flex: 1;
  padding: 0.55rem 0;
  border: 1.5px solid var(--text);
  border-radius: 8px;
  background: transparent;
  color: var(--text);
  font-size: 0.8rem; font-weight: 600;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center; gap: 0.35rem;
  transition: var(--transition);
  font-family: var(--font);
  text-decoration: none;
}
.pc-btn-code:hover { background: var(--text); color: var(--bg); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .projects-grid { grid-template-columns: repeat(2,1fr); }
  .projects-grid-ac { grid-template-columns: repeat(2,1fr); }
  .blog-grid { grid-template-columns: repeat(2,1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .stats-inner { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 768px) {
  .section { padding: 3.5rem 1.2rem; }
  /* Tablet */
  .hero-statement {
    width: clamp(220px, 58vw, 360px);
    font-size: clamp(0.95rem, 2.8vw, 1.2rem);
    padding: 1rem 1.4rem;
    top: calc(var(--topbar-height) + 2.5rem);
    right: 0;
  }
  .hero-tagline { max-width: 100%; font-size: clamp(1rem, 3vw, 1.3rem); }
  .hero-bar { flex-direction: column; align-items: flex-start; gap: 0.75rem; }
  .hero-buttons { width: 100%; }
  .btn-hero { flex: 1; justify-content: center; }
  .projects-grid { grid-template-columns: 1fr; }
  .projects-grid-ac { grid-template-columns: 1fr; }
  .blog-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .edu-grid { grid-template-columns: 1fr; }
  .timeline::before { left: 15px; }
  /* Tablet: small zoom, no huge gap */
  #hero-wrapper { height: 125vh; }

  /* Prevent any element from blowing out mobile width */
  #main { overflow-x: hidden; }
  .ac-card, .project-card-ac, .card { max-width: 100%; }
}

@media (max-width: 480px) {
  .section { padding: 3rem 1rem; }
  .stats-inner { grid-template-columns: repeat(2,1fr); }
  .skills-icons-grid { gap: 1.2rem; }
  .skill-icon-item img { width: 52px; height: 52px; }

  /* Hero video: fill full portrait screen */
  .hero-video {
    object-position: center center;
    height: 100%;
    width: 100%;
  }

  /* Yellow typing block: just a small gap below topbar */
  .hero-statement {
    width: calc(100% - 1rem);
    left: 0.5rem;
    right: 0.5rem;
    font-size: 0.88rem;
    padding: 0.8rem 1rem;
    top: calc(var(--topbar-height) + 2rem);  /* ~2rem below topbar */
  }

  .hero-marquee-top  { font-size: 0.65rem; }
  .hero-marquee-bottom { bottom: 170px; font-size: 0.65rem; }

  .hero-bar {
    padding: 0.75rem 1rem;
    gap: 0.6rem;
  }
  .hero-tagline { font-size: 0.92rem; }
  .btn-hero { font-size: 0.72rem; padding: 0.55rem 0.9rem; }

  /* Prevent any element from blowing out mobile width */
  #main, .section, .ac-card, .project-card-ac, .card, .ach-item { max-width: 100%; }
  #main { overflow-x: hidden; }
  .ac-card, .project-card-ac { max-width: 100%; }
  .ac-header { flex-direction: column; gap: 0.25rem; }
  .ac-right { text-align: left; }

  /* Small zoom effect on mobile — just enough to animate, no giant gap */
  #hero-wrapper { height: 112vh; }
}

/* ===== ACHIEVEMENTS SIDEBAR ===== */
.ach-layout {
  display: flex;
  gap: 2.5rem;
  margin-top: 2rem;
  align-items: flex-start;
  position: relative; z-index: 1;
}
.ach-sidebar {
  flex-shrink: 0;
  width: 200px;
  position: relative;
  padding-left: 28px;
}
/* Vertical track line */
.ach-sidebar::before {
  content: '';
  position: absolute;
  left: 5px; top: 20px; bottom: 20px;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), rgba(91,45,155,0.12));
  border-radius: 2px;
}
.ach-pill {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  width: 100%;
  padding: 0.65rem 1rem;
  margin-bottom: 0.75rem;
  border: 2px solid rgba(91,45,155,0.18);
  border-radius: 50px;            /* fully rounded pill */
  background: var(--card-bg);
  backdrop-filter: blur(6px);
  color: var(--text-muted);
  font-family: var(--font);
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  text-align: left;
  position: relative;
  box-shadow: 0 2px 8px rgba(91,45,155,0.06);
}
.ach-pill-icon { font-size: 1rem; flex-shrink: 0; }
/* Dot on track */
.ach-pill::before {
  content: '';
  position: absolute;
  left: -23px; top: 50%; transform: translateY(-50%);
  width: 10px; height: 10px;
  border-radius: 50%;
  background: rgba(91,45,155,0.18);
  border: 2px solid rgba(91,45,155,0.32);
  transition: var(--transition);
}
/* Branch line */
.ach-pill::after {
  content: '';
  position: absolute;
  left: -13px; top: 50%; transform: translateY(-50%);
  width: 13px; height: 2px;
  background: rgba(91,45,155,0.22);
  transition: var(--transition);
}
.ach-pill:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(91,45,155,0.06);
  transform: translateX(3px);
}
.ach-pill.active {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(91,45,155,0.1);
  box-shadow: 0 4px 16px rgba(91,45,155,0.18);
}
.ach-pill.active::before {
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(91,45,155,0.2);
}
.ach-pill.active::after { background: var(--accent); }
.ach-content { flex: 1; min-width: 0; }

/* Mobile: horizontal scrolling chips */
@media (max-width: 700px) {
  .ach-layout { flex-direction: column; gap: 1rem; }
  .ach-sidebar {
    width: 100%; padding-left: 0;
    display: flex; flex-direction: row;
    flex-wrap: nowrap; overflow-x: auto;
    gap: 0.5rem; padding-bottom: 6px;
    scrollbar-width: none;
  }
  .ach-sidebar::-webkit-scrollbar { display: none; }
  .ach-sidebar::before { display: none; }
  .ach-pill {
    white-space: nowrap; flex-shrink: 0;
    width: auto; margin-bottom: 0;
    padding: 0.5rem 0.9rem;
    transform: none !important;
  }
  .ach-pill::before, .ach-pill::after { display: none; }
}

/* ===== SCROLL STORY NAVIGATOR ===== */
/* A vertical rope on the right: laptop travels down toward a waiting person.
   When it lands at Contact, the screen flashes and the person starts typing. */
#scroll-story {
  position: fixed;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  height: 64vh;
  width: 50px;
  z-index: 300;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.5s ease;
}
#scroll-story.ss-visible { opacity: 1; }

/* The rope track — knotted purple texture */
.ss-rope-line {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  top: 60px;    /* leaves room for laptop at top */
  bottom: 60px; /* leaves room for person at bottom */
  width: 4px;
  background: repeating-linear-gradient(
    to bottom,
    #5B2D9B 0px,  #5B2D9B 5px,
    #2a0a58 5px,  #2a0a58 10px,
    #9B72E0 10px, #9B72E0 13px
  );
  border-radius: 3px;
  box-shadow: 0 0 10px rgba(91,45,155,0.4);
}

/* Laptop setup — slides down the rope as page scrolls */
.ss-laptop {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  top: 0;
  text-align: center;
  line-height: 1.05;
  /* smooth scroll-linked travel */
  transition: top 0.42s cubic-bezier(0.4, 0, 0.2, 1);
  filter: drop-shadow(0 3px 10px rgba(91,45,155,0.55));
  background: rgba(255,255,255,0.07);
  border-radius: 8px;
  padding: 3px 5px;
  z-index: 2;
}
.ss-laptop-icon { display: block; font-size: 1.5rem; line-height: 1; }
.ss-kb-icon     { display: block; font-size: 0.8rem; line-height: 1.1; }
.ss-mouse-icon  { font-size: 0.72rem; }

/* Person at bottom — starts waiting/thinking, ends typing */
.ss-person {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  font-size: 1.75rem;
  line-height: 1;
  transition: all 0.4s ease;
  filter: drop-shadow(0 2px 6px rgba(26,6,60,0.45));
}
/* Bounce when actively typing (after laptop lands) */
.ss-person.ss-typing {
  animation: ssTypeBounce 0.55s ease-in-out infinite alternate;
}
@keyframes ssTypeBounce {
  from { transform: translateX(-50%) translateY(0);    }
  to   { transform: translateX(-50%) translateY(-4px); }
}

/* Section stop-dots on the rope */
.ss-dot {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #F9BF3F;
  border: 2px solid #5B2D9B;
  box-shadow: 0 0 0 2px rgba(249,191,63,0.3);
  transition: transform 0.25s, background 0.25s;
  z-index: 1;
}
.ss-dot.active {
  background: #ffffff;
  transform: translateX(-50%) scale(1.65);
  box-shadow: 0 0 0 3px rgba(91,45,155,0.5);
}

/* Flash overlay — laptop-landing spark */
.ss-flash {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0;
  z-index: 9990;
}
.ss-flash.active {
  animation: ssFlashAnim 0.7s ease-out forwards;
}
@keyframes ssFlashAnim {
  0%   { opacity: 0;    }
  10%  { opacity: 0.8;  }
  28%  { opacity: 0.45; }
  60%  { opacity: 0.12; }
  100% { opacity: 0;    }
}
/* Light mode: warm yellow-white glow (screen turning on) */
html:not([data-theme="dark"]) .ss-flash { background: rgba(255, 230, 70, 0.72); }
/* Dark mode: cool blue-white glow */
html[data-theme="dark"] .ss-flash { background: rgba(80, 190, 255, 0.62); }

/* Responsive */
@media (max-width: 900px) {
  #scroll-story { right: 8px; height: 54vh; width: 42px; }
  .ss-laptop-icon { font-size: 1.25rem; }
  .ss-person      { font-size: 1.45rem; }
}
@media (max-width: 480px) { #scroll-story { display: none; } }

/* ===== PROJECT IMAGE LIGHTBOX ===== */
#img-lightbox {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.92);
  z-index: 9000;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  cursor: zoom-out;
}
#img-lightbox.lb-open {
  display: flex;
  animation: lbFadeIn 0.22s ease;
}
@keyframes lbFadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
#lb-img {
  max-width: 92vw;
  max-height: 88vh;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 24px 80px rgba(0,0,0,0.7);
  animation: lbZoomIn 0.28s cubic-bezier(0.34,1.25,0.64,1);
}
@keyframes lbZoomIn {
  from { transform: scale(0.82); opacity: 0; }
  to   { transform: scale(1);    opacity: 1; }
}
.lb-close {
  position: absolute; top: 1.2rem; right: 1.5rem;
  background: none; border: none;
  color: #fff; font-size: 1.8rem;
  cursor: pointer; opacity: 0.75; line-height: 1;
  transition: opacity 0.2s, transform 0.2s;
}
.lb-close:hover { opacity: 1; transform: scale(1.15); }

/* ===== RELEVANT COURSEWORK (Education card) ===== */
.coursework-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem 1.5rem;
  margin-top: 0.5rem;
}
.cw-group-title {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 0.45rem;
  padding-bottom: 0.25rem;
  border-bottom: 1px solid rgba(91,45,155,0.18);
}
.cw-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}
.cw-list li {
  font-size: 0.78rem;
  color: var(--text-muted);
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
  line-height: 1.4;
}
.cw-code {
  font-family: 'Courier New', monospace;
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--accent);
  background: rgba(91,45,155,0.08);
  border-radius: 3px;
  padding: 0.05em 0.35em;
  flex-shrink: 0;
  letter-spacing: 0.03em;
}
@media (max-width: 600px) {
  .coursework-grid { grid-template-columns: 1fr; }
}