/* ==========================================
   Personal Portfolio — 段方凝
   v3: Handwriting, Sticky Notes, Medals, Orbiting Skills
   ========================================== */

/* ---- Variables ---- */
:root {
  --bg: #faf5ef;
  --bg-alt: #f3ece3;
  --surface: #fffaf5;
  --text: #2d2a26;
  --text2: #6b6560;
  --text3: #9c9590;
  --accent: #c2784b;
  --accent2: #d4956a;
  --accent-soft: rgba(194,120,75,0.12);
  --accent-glow: rgba(194,120,75,0.2);
  --border: #e8e0d5;
  --border2: #f0e8db;
  --shadow: 0 1px 3px rgba(45,42,38,0.06);
  --shadow-md: 0 8px 30px rgba(45,42,38,0.1);
  --shadow-lg: 0 16px 50px rgba(45,42,38,0.15);
  --radius: 12px;
  --radius-lg: 20px;
  --w: 1200px;
  --font-cn: 'Noto Serif SC','Songti SC',serif;
  --font-en: 'Playfair Display','Georgia',serif;
  --font-ui: 'Inter',-apple-system,'PingFang SC',sans-serif;
  --ease: 0.4s cubic-bezier(0.4,0,0.2,1);
  --spring: 0.6s cubic-bezier(0.34,1.56,0.64,1);
  --grain: 0.35;
}

/* ---- Reset ---- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{
  font-family:var(--font-ui);font-weight:350;
  color:var(--text);background:var(--bg);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.loading{overflow:hidden}

/* ==========================================
   LOADING SCREEN
   ========================================== */
.loader{
  position:fixed;inset:0;z-index:99999;
  background:var(--bg);
  display:flex;flex-direction:column;
  align-items:center;justify-content:center;
  transition:opacity 0.6s ease,visibility 0.6s ease;
}
.loader.done{opacity:0;visibility:hidden;pointer-events:none}
.loader-ring-container{position:relative;width:220px;height:220px}
.loader-ring{width:100%;height:100%;transform:rotate(-90deg)}
.loader-track{fill:none;stroke:var(--border);stroke-width:3}
.loader-progress{
  fill:none;stroke:var(--accent);stroke-width:3;
  stroke-linecap:round;
  stroke-dasharray:553;stroke-dashoffset:553;
  transition:stroke-dashoffset 0.15s linear;
}
.loader-percent{
  position:absolute;inset:0;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-en);font-size:1.6rem;
  color:var(--accent);letter-spacing:0.04em;
}
.loader-projects-ring{
  position:absolute;width:360px;height:360px;opacity:0;
  transition:opacity 0.5s ease;
}
.loader-projects-ring.visible{opacity:1}
.loader-dot{
  position:absolute;top:50%;left:50%;
  width:52px;height:52px;margin:-26px 0 0 -26px;
  transform:rotate(calc(var(--i)*72deg)) translateY(-155px) rotate(calc(var(--i)*-72deg));
  background:var(--surface);border:1px solid var(--border);
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:0.5rem;color:var(--text2);
  transition:all 0.4s ease;
  animation:dotPulse 2s ease-in-out infinite;
  animation-delay:calc(var(--i)*0.2s);
  white-space:nowrap;overflow:visible;
}
@keyframes dotPulse{0%,100%{box-shadow:0 0 0 0 var(--accent-glow)}50%{box-shadow:0 0 0 12px transparent}}
.loader-dot span{opacity:0;font-family:var(--font-cn);font-size:0.45rem;letter-spacing:-0.02em}
.loader-projects-ring.reveal .loader-dot{
  width:82px;height:82px;margin:-41px 0 0 -41px;
  background:var(--accent-soft);border-color:var(--accent);
}
.loader-projects-ring.reveal .loader-dot span{opacity:1;font-size:0.55rem}

/* ---- Main Content ---- */
.main-content{opacity:0;transition:opacity 0.8s ease}
.main-content.visible{opacity:1}

/* ---- Grain & UI chrome ---- */
.grain{
  position:fixed;inset:0;pointer-events:none;z-index:9997;
  opacity:var(--grain);
  background:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='g'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23g)' opacity='0.45'/%3E%3C/svg%3E");
  background-size:180px;transition:opacity 0.8s;
}
.progress-bar{position:fixed;top:0;left:0;height:2px;background:var(--accent);z-index:10001;width:0%;transition:width 0.1s linear}
.section-dots{position:fixed;right:1.5rem;top:50%;transform:translateY(-50%);z-index:10000;display:flex;flex-direction:column;gap:12px}
.section-dots .dot{width:7px;height:7px;border-radius:50%;background:var(--border);transition:all var(--ease);position:relative}
.section-dots .dot::after{content:attr(title);position:absolute;right:16px;top:50%;transform:translateY(-50%);font-size:0.7rem;color:var(--text3);white-space:nowrap;opacity:0;transition:opacity var(--ease);pointer-events:none;font-family:var(--font-ui)}
.section-dots .dot:hover,.section-dots .dot.active{background:var(--accent);transform:scale(1.4)}
.section-dots .dot:hover::after{opacity:1}
.nav{position:fixed;top:0;left:0;right:0;z-index:1000;padding:1rem 2.5rem;display:flex;justify-content:space-between;align-items:center;background:linear-gradient(180deg,rgba(250,245,239,0.95) 60%,transparent);backdrop-filter:blur(6px);transition:transform 0.4s ease}
.nav.hidden{transform:translateY(-100%)}
.nav.scrolled{background:rgba(250,245,239,0.95);box-shadow:var(--shadow)}
.nav-logo{font-family:var(--font-en);font-size:1.1rem;font-style:italic;color:var(--text);text-decoration:none}
.nav-links{display:flex;gap:2rem}
.nav-links a{text-decoration:none;color:var(--text2);font-size:0.85rem;letter-spacing:0.04em;position:relative}
.nav-links a::after{content:'';position:absolute;left:0;bottom:-4px;width:0;height:1px;background:var(--accent);transition:width var(--ease)}
.nav-links a:hover{color:var(--text)}
.nav-links a:hover::after{width:100%}
.nav-contact-pill{
  font-size:0.78rem!important;color:var(--accent)!important;
  padding:4px 14px;border:1px solid var(--accent);border-radius:100px;
  transition:all var(--ease)!important;
}
.nav-contact-pill:hover{background:var(--accent);color:#fff!important}
.nav-contact-pill::after{display:none!important}

/* ---- Glass utility ---- */
.glass{background:rgba(255,250,245,0.55);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid rgba(255,255,255,0.6);box-shadow:0 4px 20px rgba(45,42,38,0.05)}

/* ==========================================
   HERO — Handwriting Name Reveal
   ========================================== */
.hero{
  min-height:100vh;
  display:flex;flex-direction:column;
  align-items:center;justify-content:center;
  position:relative;overflow:hidden;
  padding:2rem;
}
.hero-bg{
  position:absolute;inset:0;background:var(--bg);
  transition:opacity 2s ease;z-index:0;
}
.hero-bg::before{
  content:'';position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(250,245,239,0.82) 0%,rgba(250,245,239,0.95) 100%),
    url('../images/hero-photowall.jpg') center/cover no-repeat;
  opacity:0;filter:blur(8px);
  transition:opacity 2.5s ease,filter 2.5s ease;
}
.hero-bg.revealed::before{
  opacity:1;filter:blur(0);
}
.hero-signature{position:relative;z-index:2;text-align:center}

/* Hero welcome text */
.hero-welcome{
  font-family:var(--font-en);font-size:1.05rem;
  font-style:italic;
  color:var(--text3);letter-spacing:0.1em;
  margin-bottom:0.5rem;
  font-weight:400;
}
/* Hero name — matches section-title style */
.hero-name-plain{
  font-family:var(--font-cn);font-size:clamp(3rem,6.5vw,5rem);
  font-weight:400;color:var(--text2);
  font-style:italic;
  letter-spacing:0.1em;
  margin-bottom:0.25rem;
}
/* Typewriter text */
.hero-typewriter{
  font-family:var(--font-en);font-size:1.3rem;
  font-style:italic;color:var(--text2);
  letter-spacing:0.06em;margin-top:0.5rem;
  min-height:1.8rem;
}
.typewriter-cursor{
  display:inline-block;color:var(--accent);
  animation:cursorBlink 0.7s step-end infinite;
}
@keyframes cursorBlink{
  0%,100%{opacity:1}
  50%{opacity:0}
}

/* Tags */
.hero-tags{position:absolute;inset:0;pointer-events:none;z-index:3}
.hero-tag{
  position:absolute;top:50%;left:50%;
  transform:translate(calc(var(--tx)*1px),calc(var(--ty)*1px));
  font-family:var(--font-cn);font-size:1.1rem;
  color:var(--text2);letter-spacing:0.06em;
  padding:10px 24px;border-radius:100px;
  background:rgba(255,250,245,0.75);
  backdrop-filter:blur(10px);border:1px solid var(--border2);
  pointer-events:auto;cursor:default;
  animation:tagFloat calc(var(--drift)*1s) ease-in-out infinite;
  animation-delay:calc(var(--drift)*-0.5s);
  transition:all 0.3s ease;opacity:0;
}
.hero-tag:hover{
  background:var(--surface);border-color:var(--accent);
  color:var(--accent);
  transform:translate(calc(var(--tx)*1px),calc(var(--ty)*1px)) scale(1.1);
  z-index:10;
}
@keyframes tagFloat{0%,100%{margin-top:0}50%{margin-top:-8px}}
.hero-scroll{position:absolute;bottom:2rem;display:flex;flex-direction:column;align-items:center;gap:6px;color:var(--text3);font-size:0.75rem;letter-spacing:0.08em;animation:float 2.5s ease-in-out infinite;z-index:2}
.scroll-line{width:1px;height:32px;background:var(--border)}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(6px)}}

/* ==========================================
   SECTIONS shared
   ========================================== */
.section{max-width:var(--w);margin:0 auto;padding:6rem 2.5rem}
.section--full{max-width:100%;padding:6rem 2.5rem}
.section--alt{background:var(--bg-alt);max-width:100%;padding:6rem calc((100% - var(--w))/2 + 2.5rem);border-top:1px solid var(--border2);border-bottom:1px solid var(--border2)}
.section-header{text-align:center;margin-bottom:4rem}
.section-number{display:block;font-family:var(--font-en);font-size:0.85rem;font-style:italic;color:var(--text3);margin-bottom:0.5rem}
.section-title{font-family:var(--font-cn);font-size:2.2rem;font-weight:500;color:var(--text);margin-bottom:0.25rem;letter-spacing:0.06em}
.section-sub{font-family:var(--font-en);font-size:0.95rem;font-style:italic;color:var(--text3)}

/* ==========================================
   EDUCATION — Ring Cards
   ========================================== */
.edu-rings{display:flex;justify-content:center;align-items:flex-start;gap:4rem;flex-wrap:nowrap}
.edu-ring-card{display:flex;flex-direction:column;align-items:center;gap:1rem;cursor:pointer;transition:transform var(--ease)}
.edu-ring-card:hover{transform:translateY(-6px)}
.edu-ring-card.active .edu-ring-fill{stroke-dashoffset:0}
.edu-ring{width:160px;height:160px;position:relative}
.edu-ring svg{width:100%;height:100%}
.edu-ring-track{fill:none;stroke:var(--border);stroke-width:2}
.edu-ring-fill{fill:none;stroke:var(--accent);stroke-width:2;stroke-linecap:round;stroke-dasharray:440;stroke-dashoffset:440;transition:stroke-dashoffset 1.2s var(--spring);transform:rotate(-90deg);transform-origin:center}
.edu-ring-center{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;font-family:var(--font-cn)}
.edu-ring-year{font-size:0.8rem;color:var(--text3)}
.edu-ring-degree{font-size:1.2rem;color:var(--text);font-weight:500}
.edu-ring-label{font-family:var(--font-cn);font-size:1.1rem;color:var(--text);text-align:center}
.edu-ring-sub{font-family:var(--font-en);font-size:0.75rem;color:var(--text3);font-style:italic;text-align:center;margin-top:0.15rem}
.edu-ring-detail{max-height:0;overflow:hidden;transition:max-height 0.8s ease;text-align:center;font-size:0.82rem;color:var(--text2);line-height:1.7;display:flex;flex-direction:column;gap:0.2rem}
.edu-ring-detail p{margin:0}
.edu-detail-en{font-size:0.75rem;color:var(--text3)}
.edu-ring-card.active .edu-ring-detail{max-height:400px}

/* ==========================================
   EXPERIENCE — Horizontal Carousel + Detail Panel
   ========================================== */
.exp-carousel{position:relative;overflow-x:auto;overflow-y:visible;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;padding:1rem 0 2rem;scrollbar-width:none}
.exp-carousel::-webkit-scrollbar{display:none}
.exp-cards{display:flex;gap:1.5rem;justify-content:center;flex-wrap:wrap;padding:0 2.5rem}
.exp-card{flex:0 0 280px;height:340px;border-radius:var(--radius-lg);scroll-snap-align:start;cursor:pointer;transition:all var(--ease);display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}
.exp-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
.exp-card-front{text-align:center;padding:2rem;display:flex;flex-direction:column;align-items:center;gap:0.5rem}
.exp-card-tag{font-size:0.7rem;color:var(--accent);letter-spacing:0.06em;border:1px solid var(--accent);border-radius:100px;padding:2px 12px}
.exp-card-front h3{font-family:var(--font-cn);font-size:1.4rem;font-weight:500;color:var(--text)}
.exp-card-front p{font-size:0.85rem;color:var(--text2)}
.exp-card-year{font-family:var(--font-en);font-size:0.8rem;color:var(--text3);font-style:italic}
.exp-card-hint{font-size:0.75rem;color:var(--text3);margin-top:1rem;letter-spacing:0.04em}
.exp-detail-panel{position:fixed;top:0;right:0;width:520px;max-width:92vw;height:100vh;z-index:10002;transform:translateX(100%);transition:transform 0.5s var(--ease);padding:3rem 2rem;overflow-y:auto}
.exp-detail-panel.open{transform:translateX(0)}
.exp-detail-close{position:absolute;top:1.5rem;right:1.5rem;width:36px;height:36px;border-radius:50%;border:1px solid var(--border);background:var(--surface);font-size:1.3rem;color:var(--text3);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all var(--ease);z-index:1}
.exp-detail-close:hover{border-color:var(--accent);color:var(--accent)}
.exp-detail-content h3{font-family:var(--font-cn);font-size:1.3rem;font-weight:500;margin-bottom:0.3rem}
.exp-detail-content h3 span{font-family:var(--font-ui);font-size:0.8rem;color:var(--text3);font-weight:350;margin-left:0.3rem}
.exp-detail-content .exp-role{font-size:0.85rem;color:var(--accent);margin-bottom:1rem}
/* Polaroid photo in detail panel */
.exp-detail-photo{
  width:100%;aspect-ratio:4/3;overflow:hidden;border-radius:var(--radius);
  margin-bottom:1.25rem;
}
.exp-detail-photo img{width:100%;height:100%;object-fit:cover}
.exp-detail-icon{width:50px;margin-bottom:1rem;opacity:0.65}
.exp-detail-icon svg{width:100%;height:auto}
.exp-detail-content ul{list-style:none;display:flex;flex-direction:column;gap:0.5rem;margin-bottom:1rem}
.exp-detail-content ul li{font-size:0.85rem;color:var(--text2);line-height:1.7;padding-left:0.8rem;position:relative}
.exp-detail-content ul li::before{content:'·';position:absolute;left:0;color:var(--accent);font-weight:600}
.stat-num{color:var(--accent);font-weight:500}
.exp-detail-insight{font-family:var(--font-en);font-size:0.75rem;font-style:italic;color:var(--text3);line-height:1.7;border-left:2px solid var(--accent-soft);padding-left:0.75rem;margin-top:0.75rem}
.exp-detail-illust{width:100%;margin-top:1.5rem;border-radius:var(--radius);display:block}
.exp-backdrop{position:fixed;inset:0;background:rgba(45,42,38,0.15);z-index:10001;opacity:0;pointer-events:none;transition:opacity 0.4s ease}
.exp-backdrop.active{opacity:1;pointer-events:auto}

/* ==========================================
   PROJECTS — 3D Cylinder
   ========================================== */
.cylinder-stage{perspective:1200px;height:500px;display:flex;align-items:center;justify-content:center;position:relative;cursor:grab;user-select:none;-webkit-user-select:none}
.cylinder-stage:active,.cylinder-stage.dragging{cursor:grabbing}
.cylinder-container{position:relative;width:320px;height:320px;transform-style:preserve-3d;transition:transform 0.15s ease-out}
.cylinder-container.smooth{transition:transform 0.6s cubic-bezier(0.25,0.1,0.25,1)}
.cylinder-item{position:absolute;width:200px;height:260px;top:50%;left:50%;margin:-130px 0 0 -100px;transform:rotateY(var(--rot)) translateZ(340px);backface-visibility:hidden;-webkit-backface-visibility:hidden;cursor:pointer;transition:transform 0.4s var(--ease)}
.cylinder-item:hover{transform:rotateY(var(--rot)) translateZ(360px)}
.cylinder-item.focused{transform:rotateY(var(--rot)) translateZ(400px);z-index:10}
.cylinder-card{width:100%;height:100%;border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:all var(--ease)}
.cylinder-card img{width:100%;height:75%;object-fit:cover;display:block}
.cylinder-card-label{flex:1;display:flex;align-items:center;justify-content:center;font-family:var(--font-cn);font-size:1rem;color:var(--text);letter-spacing:0.06em}
.cylinder-hint{text-align:center;font-size:0.8rem;color:var(--text3);margin-top:1rem;letter-spacing:0.06em}
.project-detail-overlay{
  position:fixed;inset:0;z-index:10002;
  background:rgba(45,42,38,0.9);
  opacity:0;visibility:hidden;
  transition:opacity 0.45s ease,visibility 0.45s ease;
  display:flex;align-items:center;justify-content:center;
  padding:2rem;
}
.project-detail-overlay.open{opacity:1;visibility:visible}
.project-detail-close{
  position:absolute;top:1.5rem;right:1.5rem;
  width:44px;height:44px;border-radius:50%;
  border:1px solid rgba(255,255,255,0.2);
  background:rgba(255,255,255,0.05);
  font-size:1.5rem;color:rgba(255,255,255,0.6);
  cursor:pointer;display:flex;align-items:center;justify-content:center;
  transition:all var(--ease);z-index:10;
  backdrop-filter:blur(8px);
}
.project-detail-close:hover{
  border-color:rgba(255,255,255,0.5);color:#fff;
  background:rgba(255,255,255,0.12);
}

/* Inner grid — image gets proportionally more space */
.project-detail-inner{
  display:grid;
  grid-template-columns:1.15fr 0.85fr;
  gap:2.5rem;
  max-width:1100px;width:100%;
  align-items:center;
}

/* ---- Image column ---- */
.proj-image-col{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:0 20px 60px rgba(0,0,0,0.35);
  background:var(--bg-alt);
}
.proj-image-col img{
  width:100%;height:auto;display:block;
  transition:transform 0.3s ease-out;
  will-change:transform;
  object-fit:contain;
  max-height:78vh;
}

/* ---- Image nav arrows ---- */
.proj-img-arrow{
  position:absolute;top:50%;transform:translateY(-50%);
  width:40px;height:40px;border-radius:50%;
  border:1px solid rgba(255,255,255,0.18);
  background:rgba(0,0,0,0.35);
  color:rgba(255,255,255,0.7);
  font-size:1rem;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  transition:all var(--ease);
  backdrop-filter:blur(4px);
  z-index:5;
  opacity:0;
}
.proj-image-col:hover .proj-img-arrow{opacity:1}
.proj-img-arrow:hover{
  background:rgba(0,0,0,0.55);color:#fff;
  border-color:rgba(255,255,255,0.35);
}
.proj-img-arrow.prev{left:10px}
.proj-img-arrow.next{right:10px}

/* ---- Text column ---- */
.proj-text-col{
  display:flex;flex-direction:column;gap:0.85rem;
  max-height:78vh;overflow-y:auto;
  padding-right:0.5rem;padding-bottom:0.5rem;
  scrollbar-width:thin;scrollbar-color:rgba(255,255,255,0.1) transparent;
}
.proj-text-col::-webkit-scrollbar{width:4px}
.proj-text-col::-webkit-scrollbar-thumb{background:rgba(255,255,255,0.12);border-radius:4px}

.proj-tag{
  font-family:var(--font-ui);font-size:0.72rem;
  color:var(--accent2);letter-spacing:0.08em;
  text-transform:uppercase;
}
.proj-title{
  font-family:var(--font-cn);font-size:1.7rem;font-weight:500;
  color:#fff;letter-spacing:0.06em;line-height:1.35;
  margin:0;
}
.proj-desc{
  font-family:var(--font-cn);font-size:0.92rem;font-weight:300;
  color:rgba(255,255,255,0.65);line-height:1.95;
}

/* ---- Tabs ---- */
.proj-tabs{display:flex;gap:0;border-bottom:1px solid rgba(255,255,255,0.1);padding-bottom:0}
.proj-tab{
  font-family:var(--font-cn);font-size:0.85rem;
  color:rgba(255,255,255,0.4);background:none;border:none;
  padding:0.5rem 1.2rem;cursor:pointer;
  border-bottom:2px solid transparent;
  margin-bottom:-1px;
  transition:all var(--ease);
  letter-spacing:0.04em;font-weight:300;
}
.proj-tab:hover{color:rgba(255,255,255,0.7)}
.proj-tab.active{
  color:var(--accent2);
  border-bottom-color:var(--accent2);
}

/* Tab content */
.proj-tab-content{
  font-family:var(--font-cn);font-size:0.9rem;font-weight:300;
  color:rgba(255,255,255,0.65);line-height:1.9;
}
.proj-tab-content p{margin-bottom:0.6rem}
.proj-tab-content p:last-child{margin-bottom:0}
.proj-tab-content em{font-style:normal;color:var(--accent2)}
.proj-tab-content ul{list-style:none;display:flex;flex-direction:column;gap:0.65rem}
.proj-tab-content ul li{
  font-size:0.88rem;padding-left:1.2rem;position:relative;
}
.proj-tab-content ul li::before{
  content:'·';position:absolute;left:0;color:var(--accent2);font-weight:600;
}
.proj-tab-content b{font-weight:500;color:rgba(255,255,255,0.9)}

/* ---- Keywords ---- */
.proj-keywords{display:flex;flex-wrap:wrap;gap:0.5rem}
.proj-keywords span{
  font-size:0.72rem;color:rgba(255,255,255,0.5);
  background:rgba(255,255,255,0.06);
  border:1px solid rgba(255,255,255,0.08);
  padding:3px 14px;border-radius:100px;
  font-family:var(--font-cn);
}

/* ---- Pull quote ---- */
.proj-insight{
  font-family:var(--font-en);font-size:1.05rem;font-style:italic;
  color:rgba(255,255,255,0.45);
  border-left:2px solid rgba(255,255,255,0.15);
  padding-left:1rem;margin:0;line-height:1.6;
  letter-spacing:0.02em;
}

/* ---- Gallery strip ---- */
.proj-gallery{
  display:flex;gap:0.5rem;overflow-x:auto;
  padding:0.25rem 0 0.5rem;margin-top:0.25rem;
  scrollbar-width:none;flex-shrink:0;
}
.proj-gallery::-webkit-scrollbar{display:none}
.proj-gallery-item{
  flex:0 0 64px;height:64px;border-radius:8px;overflow:hidden;
  cursor:pointer;position:relative;
  border:2px solid transparent;
  transition:border-color var(--ease),opacity var(--ease);
  opacity:0.45;
}
.proj-gallery-item:hover{opacity:0.8}
.proj-gallery-item.active{opacity:1;border-color:var(--accent2)}
.proj-gallery-item img{width:100%;height:100%;object-fit:cover;display:block}
/* Video thumbnail */
.proj-gallery-video{background:rgba(0,0,0,0.5)}
.proj-gallery-play{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:0.9rem;pointer-events:none;
  text-shadow:0 1px 3px rgba(0,0,0,0.4);
}
/* Gallery label tooltip on hover */
.proj-gallery-label{
  position:absolute;bottom:0;left:0;right:0;
  background:linear-gradient(transparent,rgba(0,0,0,0.7));
  color:#fff;font-size:0.55rem;text-align:center;
  padding:12px 4px 3px;opacity:0;
  transition:opacity var(--ease);
  pointer-events:none;white-space:nowrap;
}
.proj-gallery-item:hover .proj-gallery-label{opacity:1}

/* Video element in image column */
.proj-image-col video{
  width:100%;height:auto;display:block;
  max-height:78vh;border-radius:var(--radius-lg);
  outline:none;
}

/* ---- Stagger reveal animation ---- */
.project-detail-inner .proj-tag,
.project-detail-inner .proj-title,
.project-detail-inner .proj-tabs,
.project-detail-inner .proj-tab-content,
.project-detail-inner .proj-desc,
.project-detail-inner .proj-keywords span,
.project-detail-inner .proj-insight,
.project-detail-inner .proj-gallery{
  opacity:0;transform:translateY(16px);
}
.project-detail-inner.reveal .proj-tag,
.project-detail-inner.reveal .proj-title,
.project-detail-inner.reveal .proj-tabs,
.project-detail-inner.reveal .proj-tab-content,
.project-detail-inner.reveal .proj-desc,
.project-detail-inner.reveal .proj-keywords span,
.project-detail-inner.reveal .proj-insight,
.project-detail-inner.reveal .proj-gallery{
  animation:projReveal 0.5s ease forwards;
  animation-delay:calc(var(--reveal-order) * 0.06s + 0.15s);
}
@keyframes projReveal{
  to{opacity:1;transform:translateY(0)}
}
/* Re-trigger for tab content switch */
.proj-tab-content.reveal{
  animation:projReveal 0.35s ease forwards;
}

/* ---- Click image hint ---- */
.proj-image-col img{cursor:zoom-in}

/* ==========================================
   LIGHTBOX — full-screen image viewer
   ========================================== */
.lightbox{
  position:fixed;inset:0;z-index:100003;
  background:rgba(0,0,0,0.92);
  opacity:0;visibility:hidden;
  transition:opacity 0.3s ease,visibility 0.3s ease;
  display:flex;align-items:center;justify-content:center;
}
.lightbox.open{opacity:1;visibility:visible}
.lightbox-close{
  position:absolute;top:1.5rem;right:1.5rem;
  width:44px;height:44px;border-radius:50%;
  border:1px solid rgba(255,255,255,0.2);
  background:rgba(255,255,255,0.05);
  font-size:1.6rem;color:rgba(255,255,255,0.6);
  cursor:pointer;display:flex;align-items:center;justify-content:center;
  transition:all var(--ease);z-index:10;
}
.lightbox-close:hover{color:#fff;background:rgba(255,255,255,0.12)}
.lightbox-arrow{
  position:absolute;top:50%;transform:translateY(-50%);
  width:52px;height:52px;border-radius:50%;
  border:1px solid rgba(255,255,255,0.15);
  background:rgba(0,0,0,0.4);
  color:rgba(255,255,255,0.65);
  font-size:1.3rem;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  transition:all var(--ease);z-index:10;
  backdrop-filter:blur(6px);
}
.lightbox-arrow:hover{background:rgba(0,0,0,0.6);color:#fff;border-color:rgba(255,255,255,0.35)}
.lightbox-arrow.prev{left:1.5rem}
.lightbox-arrow.next{right:1.5rem}
.lightbox-counter{
  position:absolute;top:1.5rem;left:50%;transform:translateX(-50%);
  color:rgba(255,255,255,0.45);font-size:0.8rem;
  font-family:var(--font-ui);letter-spacing:0.06em;z-index:10;
}
.lightbox-img-wrap{
  max-width:90vw;max-height:88vh;
  display:flex;align-items:center;justify-content:center;
}
.lightbox-img-wrap img{
  max-width:90vw;max-height:88vh;
  object-fit:contain;border-radius:4px;
  box-shadow:0 20px 80px rgba(0,0,0,0.5);
}

/* ==========================================
   LEADERSHIP — Sticky Notes Board
   ========================================== */
.sticky-board{
  display:flex;justify-content:center;gap:2rem;flex-wrap:wrap;
  padding:1rem 0;position:relative;
}
.sticky-note{
  width:260px;padding:1.75rem 1.5rem 1.25rem;
  background:var(--color, #fdf2e3);
  border-radius:2px 2px 8px 8px;
  box-shadow:2px 4px 12px rgba(45,42,38,0.1), 1px 2px 4px rgba(45,42,38,0.06);
  transform:rotate(var(--rot));
  transition:all 0.4s var(--spring);
  cursor:pointer;position:relative;
  font-family:var(--font-cn);
}
.sticky-note::after{
  content:'';position:absolute;bottom:6px;right:10px;
  width:40px;height:16px;
  background:linear-gradient(135deg,transparent 50%,rgba(0,0,0,0.03) 50%);
  border-radius:0 0 4px 0;
}
.sticky-note:hover{
  transform:rotate(0deg) translateY(-8px) scale(1.04);
  box-shadow:4px 10px 28px rgba(45,42,38,0.18);
  z-index:10;
}
.sticky-note.expanded{
  transform:rotate(0deg) scale(1.04);
  z-index:20;
  box-shadow:4px 16px 40px rgba(45,42,38,0.22);
}
.sticky-detail{
  position:absolute;top:100%;left:0;right:0;
  background:inherit;
  padding:0;max-height:0;overflow:hidden;
  opacity:0;visibility:hidden;
  border-radius:0 0 8px 8px;
  transition:max-height 0.5s ease,padding 0.5s ease,opacity 0.3s ease,visibility 0.3s ease;
  font-size:0.8rem;color:var(--text2);
  z-index:19;pointer-events:none;
}
.sticky-note.expanded .sticky-detail{
  max-height:600px;padding:0.5rem 1.5rem 1.25rem;
  opacity:1;visibility:visible;
  pointer-events:auto;
  box-shadow:4px 16px 24px rgba(45,42,38,0.15);
}
.sticky-pin{
  position:absolute;top:-8px;left:50%;transform:translateX(-50%);
  width:14px;height:14px;border-radius:50%;
  background:radial-gradient(circle at 40% 35%,#e8c9a0,#c2784b);
  box-shadow:0 2px 4px rgba(45,42,38,0.2);
  z-index:2;
}
.sticky-photo{
  width:100%;height:130px;border-radius:4px;overflow:hidden;
  margin-bottom:0.75rem;background:var(--bg-alt);
}
.sticky-photo img{width:100%;height:100%;object-fit:cover}
.sticky-year{font-size:0.72rem;color:var(--text3);display:block;margin-bottom:0.2rem}
.sticky-note h4{font-size:1.1rem;font-weight:500;color:var(--text);margin-bottom:0.15rem}
.sticky-note p{font-size:0.82rem;color:var(--text2)}

/* ==========================================
   AWARDS — Medals
   ========================================== */
.awards-trophy-grid{
  display:flex;flex-wrap:wrap;justify-content:center;
  gap:2rem;padding:1rem 0;
}
.award-medal{
  display:flex;flex-direction:column;align-items:center;
  gap:0.75rem;width:150px;
  cursor:default;transition:transform 0.4s var(--spring);
  position:relative;
  animation:medalFloat 3.5s ease-in-out infinite;
  animation-delay:calc(var(--i, 0) * 0.4s);
}
.award-medal:hover{
  transform:translateY(-10px);
  animation-play-state:paused;
}
@keyframes medalFloat{
  0%,100%{transform:translateY(0)}
  50%{transform:translateY(-8px)}
}

/* Sparkle particles */
.medal-disc::before{
  content:'';position:absolute;inset:4px;border-radius:50%;
  border:1px solid rgba(255,255,255,0.5);
}
.medal-disc::after{
  content:'';position:absolute;inset:-8px;border-radius:50%;
  background:radial-gradient(circle,rgba(232,197,109,0.35) 0%,transparent 60%);
  animation:medalGlow 2s ease-in-out infinite;
  animation-delay:calc(var(--i, 0) * 0.4s + 0.5s);
}
@keyframes medalGlow{
  0%,100%{opacity:0;transform:scale(0.8)}
  50%{opacity:1;transform:scale(1.3)}
}
.medal-ribbon{
  width:3px;height:24px;
  background:linear-gradient(to bottom,transparent,var(--accent));
  opacity:0.5;
}
.medal-disc{
  width:80px;height:80px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  position:relative;
  box-shadow:0 4px 16px rgba(45,42,38,0.12);
  transition:all 0.4s ease;
}
.medal-disc::before{
  content:'';position:absolute;inset:4px;border-radius:50%;
  border:1px solid rgba(255,255,255,0.5);
}
.award-medal[data-tier="gold"] .medal-disc{
  background:linear-gradient(135deg,#e8c56d,#c2784b,#e8c56d);
}
.award-medal[data-tier="silver"] .medal-disc{
  background:linear-gradient(135deg,#d5d0c8,#9c9590,#d5d0c8);
}
.award-medal[data-tier="bronze"] .medal-disc{
  background:linear-gradient(135deg,#d4a574,#a07850,#d4a574);
}
.award-medal:hover .medal-disc{box-shadow:0 8px 30px rgba(45,42,38,0.2)}
.medal-icon{font-size:1.4rem;color:rgba(255,255,255,0.85)}
.medal-name{font-family:var(--font-cn);font-size:0.78rem;color:var(--text2);text-align:center;line-height:1.4}

/* ==========================================
   SKILLS — Avatar + Orbit
   ========================================== */
.skills-orbit-stage{
  display:flex;flex-direction:column;align-items:center;
  padding:2rem 0;
}
.skills-avatar-ring{
  position:relative;
  width:520px;height:520px;
  display:flex;align-items:center;justify-content:center;
}
/* Central avatar */
.skills-avatar{
  width:160px;height:160px;border-radius:50%;
  overflow:hidden;z-index:5;
  display:flex;align-items:center;justify-content:center;
  transition:transform 0.4s var(--ease);
  box-shadow:0 4px 24px rgba(45,42,38,0.15), 0 0 0 6px rgba(255,250,245,0.6), 0 0 0 8px rgba(194,120,75,0.12);
}
.skills-avatar:hover{transform:scale(1.06)}
.avatar-placeholder{
  width:100%;height:100%;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  background:var(--bg-alt);
  color:var(--text3);gap:2px;
}
/* If user provides a photo: replace .avatar-placeholder with <img> */

/* Orbiting badges */
.skill-orbiter{
  position:absolute;top:50%;left:50%;
  width:70px;height:70px;
  margin-left:-35px;margin-top:-35px;
  transform:rotate(var(--orbit)) translateX(var(--orbit-r)) rotate(calc(var(--orbit)*-1));
  z-index:3;
  animation:orbitFloat 24s linear infinite;
  animation-delay:calc(var(--orbit)/-36 * 1s);
}
@keyframes orbitFloat{
  0%{transform:rotate(var(--orbit)) translateX(var(--orbit-r)) rotate(calc(var(--orbit)*-1))}
  50%{transform:rotate(calc(var(--orbit) + 6deg)) translateX(calc(var(--orbit-r) + 10px)) rotate(calc(var(--orbit)*-1 - 6deg))}
  100%{transform:rotate(calc(var(--orbit) + 360deg)) translateX(var(--orbit-r)) rotate(calc(var(--orbit)*-1 - 360deg))}
}
.skill-badge{
  width:70px;height:70px;border-radius:50%;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:2px;cursor:pointer;
  transition:all 0.3s var(--ease);
  position:relative;
}
.skill-badge:hover{
  transform:scale(1.3);z-index:10;
  box-shadow:var(--shadow-md);
}
.skill-badge-icon{font-size:1rem;color:var(--accent)}
.skill-badge-label{font-size:0.55rem;color:var(--text2);letter-spacing:0.04em;font-weight:400}

/* Tooltip */
.skill-badge[data-tip]:hover::after{
  content:attr(data-tip);
  position:absolute;bottom:calc(100% + 10px);
  left:50%;transform:translateX(-50%);
  background:var(--text);color:var(--bg);
  font-size:0.7rem;padding:5px 14px;border-radius:6px;
  white-space:nowrap;pointer-events:none;
  font-family:var(--font-ui);
}

/* Floating easter egg skills */
.skills-hint{
  font-family:var(--font-cn);font-size:0.75rem;
  color:var(--text3);letter-spacing:0.06em;
  margin-top:0.5rem;opacity:0.6;
}
.skills-extras{
  display:flex;gap:1.5rem;margin-top:2rem;flex-wrap:wrap;justify-content:center;
}
.skill-easter-egg{
  font-family:var(--font-cn);font-size:0.85rem;
  color:var(--text3);padding:8px 20px;
  border:1px dashed var(--border);
  border-radius:100px;cursor:default;
  transition:all 0.3s var(--ease);
  position:relative;
}
.skill-easter-egg:hover{
  color:var(--accent);border-color:var(--accent);
  border-style:solid;transform:translateY(-3px);
  box-shadow:var(--shadow);
}
.skill-easter-egg[data-tip]:hover::after{
  content:attr(data-tip);
  position:absolute;bottom:calc(100% + 8px);
  left:50%;transform:translateX(-50%);
  background:var(--text);color:var(--bg);
  font-size:0.7rem;padding:4px 12px;border-radius:4px;
  white-space:nowrap;pointer-events:none;
  font-family:var(--font-ui);
}

/* ==========================================
   SIDE PROJECTS — Scrapbook Layout
   ========================================== */
/* Rows */
.sp-row{
  display:flex;justify-content:center;align-items:center;
  gap:2.5rem;flex-wrap:wrap;padding:2rem 0;
}
.sp-row+.sp-row{border-top:1px dashed var(--border);padding-top:3rem}

.sp-device{position:relative}
.sp-screenshot{width:100%;display:block}

/* ---- Washi tape on cards ---- */
.sp-tape{
  position:absolute;z-index:5;opacity:0.65;
  width:56px;height:18px;border-radius:2px;
}
.sp-tape-tl{
  top:-6px;left:18px;transform:rotate(-3deg);
  background:rgba(217,189,157,0.55);
}
.sp-tape-bl{
  bottom:-6px;left:22px;transform:rotate(2deg);
  background:rgba(189,210,182,0.5);
}

/* ---- Laptop ---- */
.sp-laptop{
  display:flex;flex-direction:column;align-items:center;gap:0;
}
.sp-laptop-lid{
  width:480px;background:#2c2c2e;border-radius:10px 10px 0 0;
  padding:12px 12px 8px;position:relative;
  box-shadow:0 4px 20px rgba(0,0,0,0.25);
}
.sp-laptop-bezel{
  background:#1c1c1e;border-radius:5px;
  padding:16px 8px 8px;position:relative;
}
.sp-laptop-screen{
  height:310px;overflow-y:auto;overflow-x:hidden;
  scrollbar-width:thin;scrollbar-color:rgba(255,255,255,0.08) transparent;
  background:#fff;
}
.sp-laptop-screen::-webkit-scrollbar{width:4px}
.sp-laptop-screen::-webkit-scrollbar-thumb{background:rgba(0,0,0,0.15);border-radius:2px}
.sp-laptop-screen img{width:100%;display:block;cursor:pointer}
.sp-laptop-camera{
  position:absolute;top:5px;left:50%;transform:translateX(-50%);
  width:5px;height:5px;border-radius:50%;
  background:#3a3a3c;z-index:2;
}
.sp-laptop-base{
  width:480px;height:14px;
  background:linear-gradient(180deg,#3a3a3c 0%,#2c2c2e 100%);
  border-radius:0 0 7px 7px;
  position:relative;
}
.sp-laptop-base::after{
  content:'';position:absolute;bottom:-5px;left:50%;transform:translateX(-50%);
  width:70px;height:3px;background:#222;border-radius:0 0 2px 2px;
}

/* ---- Phone ---- */
.sp-phone-body{
  width:230px;background:#1a1a1c;border-radius:30px;
  padding:30px 9px 18px;position:relative;
  box-shadow:0 8px 30px rgba(0,0,0,0.3), inset 0 0 0 2px #3a3a3c;
}
.sp-phone-notch-dynamic{
  position:absolute;top:11px;left:50%;transform:translateX(-50%);
  width:66px;height:18px;background:#1a1a1c;
  border-radius:0 0 13px 13px;z-index:3;
}
.sp-phone-screen{
  overflow-y:auto;overflow-x:hidden;
  border-radius:5px;background:#fff;position:relative;
  scrollbar-width:none;
}
.sp-phone-screen::-webkit-scrollbar{display:none}
.sp-phone-screen img{width:100%;display:block}

/* Hotspots */
.sp-hotspots{position:absolute;inset:0;z-index:2;pointer-events:none}
.sp-hotspot{
  position:absolute;cursor:pointer;pointer-events:auto;
  border-radius:6px;transition:all 0.2s ease;
  border:1px solid transparent;
}
.sp-hotspot:hover{
  border-color:rgba(194,120,75,0.5);
  background:rgba(194,120,75,0.08);
}
.sp-back-btn{
  display:none;position:absolute;top:8px;left:8px;z-index:5;
  background:rgba(0,0,0,0.55);color:#fff;
  padding:4px 10px;border-radius:12px;
  font-size:0.65rem;cursor:pointer;
  font-family:var(--font-cn);letter-spacing:0.04em;
  backdrop-filter:blur(4px);
}
.sp-back-btn.visible{display:block}

/* ---- Description Cards (scrapbook style) ---- */
.sp-desc-card{
  max-width:320px;position:relative;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:4px 16px 4px 16px;
  padding:1.8rem 1.5rem 1.5rem;
  box-shadow:2px 3px 12px rgba(45,42,38,0.08);
  transform:rotate(-1deg);
}
.sp-desc-left{transform:rotate(0.8deg)}
.sp-desc-right{transform:rotate(-0.6deg)}
/* Paperclip */
.sp-paperclip{
  position:absolute;top:-10px;right:24px;
  font-size:1.5rem;color:rgba(194,120,75,0.5);
  transform:rotate(15deg);
}
.sp-desc-title{
  font-family:var(--font-cn);font-size:1.3rem;font-weight:500;
  color:var(--text);letter-spacing:0.06em;margin-bottom:0.15rem;
}
.sp-desc-role{
  font-family:var(--font-en);font-size:0.7rem;font-style:italic;
  color:var(--accent);margin-bottom:0.75rem;
  border-bottom:1px dashed var(--border);
  padding-bottom:0.6rem;display:inline-block;
}
.sp-desc-body{
  font-family:var(--font-cn);font-size:0.85rem;color:var(--text2);
  line-height:1.85;display:flex;flex-direction:column;gap:0.6rem;
}
.sp-desc-body em{font-style:normal;color:var(--accent)}
.sp-desc-hint{
  display:block;margin-top:0.8rem;
  font-size:0.7rem;color:var(--text3);
  letter-spacing:0.04em;
}

/* ==========================================
   CONTACT
   ========================================== */
.contact{
  text-align:center;padding:7rem 2.5rem;
  background:var(--bg);max-width:100%;
}
.contact-content{max-width:520px;margin:0 auto}
.contact-title{font-family:var(--font-cn);font-size:2rem;font-weight:500;margin-bottom:1rem}
.contact-text{font-size:0.95rem;color:var(--text2);margin-bottom:2.5rem;line-height:1.9}
.contact-links{display:flex;flex-direction:column;gap:1rem;margin-bottom:2rem}
.contact-link{text-decoration:none;display:flex;flex-direction:column;gap:0.15rem;padding:1.25rem;border-radius:var(--radius);transition:all var(--ease)}
.contact-link:hover{transform:translateY(-2px);border-color:var(--accent)}
.contact-label{font-size:0.72rem;color:var(--text3);text-transform:uppercase;letter-spacing:0.08em}
.contact-value{font-family:var(--font-cn);font-size:1.05rem;color:var(--text)}
.contact-credits{font-family:var(--font-en);font-size:0.8rem;font-style:italic;color:var(--text3);opacity:0.6}

/* ==========================================
   FADE UP
   ========================================== */
.fade-up{opacity:0;transform:translateY(28px);transition:opacity 0.7s ease,transform 0.7s ease}
.fade-up.visible{opacity:1;transform:translateY(0)}
.fade-up:nth-child(1){transition-delay:0s}
.fade-up:nth-child(2){transition-delay:0.1s}
.fade-up:nth-child(3){transition-delay:0.2s}
.fade-up:nth-child(4){transition-delay:0.3s}

/* ==========================================
   RESPONSIVE
   ========================================== */
@media(max-width:900px){
  .nav{padding:1rem 1.5rem}
  .nav-links{gap:1rem;font-size:0.75rem}
  .section{padding:4rem 1.5rem}
  .section--full{padding:4rem 1.5rem}
  .section--alt{padding:4rem 1.5rem}
  .section-dots{display:none}

  .hero-name-plain{font-size:clamp(2.4rem,6vw,4rem)}

  .edu-rings{gap:2rem;flex-wrap:wrap}
  .edu-ring{width:120px;height:120px}

  .exp-cards{padding:0 1.5rem}
  .exp-detail-panel{width:100vw}

  .cylinder-stage{height:400px}
  .cylinder-item{width:160px;height:220px;margin:-110px 0 0 -80px}
  .cylinder-item{transform:rotateY(var(--rot)) translateZ(240px)!important}
  .cylinder-item:hover{transform:rotateY(var(--rot)) translateZ(260px)!important}

  .sticky-board{gap:1.5rem}
  .sticky-note{width:220px;padding:1.5rem 1rem 1.25rem}

  .awards-trophy-grid{gap:1rem}
  .award-medal{width:110px}
  .medal-disc{width:60px;height:60px}

  .skills-avatar-ring{width:360px;height:360px}
  .skill-orbiter{--orbit-r:155px!important}
  .skill-badge{width:56px;height:56px}
  .skills-avatar{width:110px;height:110px}

  .project-detail-inner{grid-template-columns:1fr;gap:1.5rem}
  .project-detail-overlay{padding:1.5rem}
  .proj-image-col{aspect-ratio:16/9}
  .proj-text-col{max-height:50vh}
  .sp-laptop-lid,.sp-laptop-base{width:360px}
  .sp-laptop-screen{height:240px}
  .sp-phone-body{width:200px;border-radius:28px;padding:24px 8px 6px}
  .sp-phone-screen{height:330px}
  .lightbox-arrow.prev{left:0.5rem}
  .lightbox-arrow.next{right:0.5rem}
  .lightbox-arrow{width:40px;height:40px;font-size:1rem}
  .section-title{font-size:1.7rem}
}