body {
    margin: 0;
    font-family: 'Inter', sans-serif;
    background-color: #0a0a0a;
    color: #f4f4f4;

    background-image: url('pictures/paper-fibers.png');
    background-repeat: repeat;
    background-size: auto;

}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    background-color: rgba(10, 10, 10, 0.9);
    pointer-events: none;
    z-index: -1;
}

.navbar {
    display: flex;
    justify-content: center;
    gap: 20px;
    padding: 20px;
    background-color: #111;

    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.navbar a {
    color: #fff;
    text-decoration: none;
    transition: color 0.3s ease;
    margin: 0 15px;
    font-size: 18px;
    position: relative;
}

.navbar a:hover {
    color: #E63946;
}


.hero {
    text-align: center;
    padding: 20px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 55vh;

}

.hero h1 {
    font-family: 'Zen Kaku Gothic Antique', 'Inter', sans-serif;
    font-size: 64px;
    font-weight: 700;
    margin-bottom: 10px;
    letter-spacing: 2px;
    color: #f5f5f5;
    text-shadow:
        0 0 3px #E63946,
        0 0 6px rgba(230, 57, 70, 0.5),
        0 0 10px rgba(230, 57, 70, 0.3),
        0 0 14px rgba(230, 57, 70, 0.15);

    animation: fadeIn 1.5s ease forwards;
    animation: glow 4s ease-in-out infinite;
}

@keyframes glow {

    0%,
    100% {
        text-shadow:
            0 0 3px #E63946,
            0 0 6px rgba(230, 57, 70, 0.5),
            0 0 10px rgba(230, 57, 70, 0.3),
            0 0 14px rgba(230, 57, 70, 0.15);
    }

    50% {
        text-shadow:
            0 0 2px #E63946,
            0 0 4px rgba(230, 57, 70, 0.3),
            0 0 8px rgba(230, 57, 70, 0.2),
            0 0 12px rgba(230, 57, 70, 0.1);
    }
}

.hero h1:hover {
    color: #E63946;
    transition: color 0.3s ease;
    cursor: default;
}

.hero p {
    font-size: 20px;
    color: #ccc;
    letter-spacing: 1px;
    max-width: 600px;

    animation: fadeIn 2s ease forwards;
    animation-delay: 0.5s;
}

.typed-cursor {
    display: none;
}

#typed {
    display: block;
    min-height: 30px;
    margin-top: 20px;
    font-size: 18px;
    color: #ccc;
    letter-spacing: 1px;
}

footer {
    text-align: center;
    padding: 30px 20px;
    background-color: #111;
    margin-top: 40px;
    color: #aaa;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    animation: fadeIn 2.5s ease forwards;
}

.footer-links {
    margin: 10px 0;
}

.footer-links a {
    color: #aaa;
    margin: 0 10px;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: #E63946;
}

.intro p {
    text-align: center;
    max-width: 600px;
    margin: 10px auto 0;
    font-size: 18px;
    color: #ccc;
    letter-spacing: 1px;
}

@keyframes fadeIn {
    0% {
        opacity: 0;
        transform: translateY(20px);
    }

    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.sakura {
    position: fixed;
    top: -10px;
    width: 15px;
    height: 15px;
    background: url('pictures/sakura.png') no-repeat center/contain;
    opacity: 0.8;
    z-index: 9999;
    pointer-events: none;
    animation: fall linear infinite;
}

@keyframes fall {
    to {
        transform: translateY(100vh) rotate(360deg);
        opacity: 0;
    }
}

.about-page::before {
    content: "";
    position: fixed;
    inset: 0;
    background: radial-gradient(circle, rgba(230, 57, 70, 0.02) 0%, rgba(10, 10, 10, 0.9) 70%);
    pointer-events: none;
    z-index: -1;
}

.about h1 {
    text-align: center;
    font-size: 48px;
    margin-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding-bottom: 10px;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.05);

    position: relative;
    z-index: 2;
}

.about h1::after {
    content: '技';
    position: absolute;
    top: 50%;
    left: 50%;
    font-size: 200px;
    color: rgba(255, 255, 255, 0.015);
    transform: translate(-50%, -50%);
    pointer-events: none;
    white-space: nowrap;

    opacity: 0;
    animation: kanjiFade 2s ease forwards;
    animation-delay: 0.5s;
}

@keyframes kanjiFade {
    to {
        opacity: 1;
    }
}

.about-section {
    max-width: 900px;
    margin: 50px auto;
    padding: 0 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding-bottom: 30px;
    border-image: linear-gradient(to right, transparent, rgba(255, 255, 255, 0.1), transparent) 1;

    border-left: 2px solid rgba(255, 255, 255, 0.05);
    padding-left: 20px;
}

.about-section:last-child {
    border-bottom: none;
}

.about-section h2 {
    font-size: 28px;
    color: #b84c4c;
    margin-bottom: 15px;
    letter-spacing: 1px;
}

/* idea to add section numbers next to sections, kinda trashed it since it looked ugly with work experience lol
.section-number {
    color: #b84c4c; 
    opacity: 0.3; 
    margin-right: 10px; 
    font-weight: 400;
}
*/

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 15px;
    list-style: none;
    padding: 0;
}

.skills-grid li {
    background: rgba(255, 255, 255, 0.03);
    padding: 8px;
    border-radius: 8px;
    text-align: center;
    font-size: 15px;
}

.skills-grid li:hover {
    background: rgba(255, 255, 255, 0.07);
    transform: translateY(-3px);
    transition: 0.3s;
}

.experience-list {
    padding-left: 20px;
    line-height: 1.8;
}

.experience-list li {
    position: relative;
    padding-left: 20px;
    border-left: 2px solid rgba(255, 255, 255, 0.05);
    margin-bottom: 20px;
}

.projects {
    max-width: 900px;
    margin: 60px auto;
    padding: 0 20px;
}

.projects h1 {
    text-align: center;
    font-size: 48px;
    margin-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding-bottom: 10px;
}

.projects-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

.project-card {
    display: block;
    background: rgba(255, 255, 255, 0.02);
    padding: 20px;
    border-radius: 10px;
    transition: background 0.3s, transform 0.3s;
    text-decoration: none;
    color: inherit;
}

.project-card h2 {
    position: relative;
    display: inline-block;
}

.project-card h2::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -4px;
    width: 0%;
    height: 2px;
    background-color: #E63946;
    transition: width 0.3s ease;
}

.project-card:hover h2::after {
    width: 100%;
}

.project-card:hover {
    background: rgba(255, 255, 255, 0.05);
    transform: translateY(-5px);

    box-shadow: 0 4px 20px rgba(230, 57, 70, 0.1);
}

.project-notice {
    text-align: center;
    color: #888;
    font-size: 14px;
    margin-bottom: 30px;
    opacity: 0.7;
}

.cc-section {
    max-width: 1000px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.cc-section h1 {
    color: #ffffff;
}

.cc-role {
    color: #b3b3b3;
}

/* responsive grid of cards */
.cc-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1rem;
}

.cc-card {
    background: #1e1e1e;
    border: 1px solid #2d2d2d;
    border-radius: 12px;
    padding: 1rem 1.25rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
    color: #f5f5f5;
}

.cc-card h2 {
    color: #ffffff;
    margin-top: 0.25rem;
    margin-bottom: 0.75rem;
    font-size: 1.1rem;
}

.cc-card ul li {
    color: #d1d1d1;
}

/* tighter list for competitions */
.cc-compact {
    margin: 0.25rem 0 0;
    padding-left: 1.25rem;
}

.cc-note {
    font-size: 0.95rem;
    color: var(--muted-text, #666);
    margin-top: 0.5rem;
}

/* links */
.cc-card a {
    color: #4da3ff;
    border-bottom: 1px solid #4da3ff;
}

.cc-card a:hover {
    opacity: 0.85;
}

.cc-note {
    font-size: 0.95rem; 
    color: #a8a8a8;
}

/* --- TCBMe page --- */
.tcbme { max-width: 1100px; margin: 0 auto; padding: 2rem 1rem; }

.tcb-hero {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 1rem;
  align-items: center;
  margin-bottom: 1rem;
}
.tcb-hero-text h1 { margin: 0 0 .25rem; color: #fff; }
.tcb-tagline { color: #cbd5e1; margin: 0; }

.tcb-logo {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  background: #1e1e1e; border: 1px solid #2d2d2d; border-radius: 12px; padding: 1rem;
}
.tcb-logo img { max-width: 220px; height: auto; opacity: .95; }
.tcb-caption { color: #9ca3af; font-size: .85rem; margin-top: .5rem; }

.tcb-story, .tcb-outlook { margin-top: 1rem; }

.tcb-photo { margin: .5rem 0 0; }
.tcb-photo img {
  width: 100%; height: auto; border-radius: 10px;
  border: 1px solid #2d2d2d; box-shadow: 0 2px 10px rgba(0,0,0,.4);
}
.tcb-photo figcaption { color: #9ca3af; font-size: .9rem; margin-top: .25rem; }

/* small citation text inside cards */
.tcb-cite { color: #9ca3af; font-size: .85rem; margin-top: .5rem; }

/* =========================
   Summer Research 1 (Generative AI & Security)
   ========================= */
.sr1{
  --sr1-bg-1: rgba(255,255,255,.06);
  --sr1-bg-2: rgba(255,255,255,.03);
  --sr1-border: rgba(255,255,255,.12);
  --sr1-text-1: #ffffff;
  --sr1-text-2: #cbd5e1;
  --sr1-muted: #9aa3b2;
  --sr1-accent: #7dd3fc;
  --sr1-accent-2: #60a5fa;
  --sr1-radius: 14px;

  max-width: 1120px;
  margin: 0 auto;
  padding: 2rem 1rem 3rem;
}

/* Hero */
.sr1-hero{ margin-bottom: 1rem; }
.sr1-title{
  margin: 0 0 .35rem;
  background: linear-gradient(90deg, #fff, var(--sr1-accent-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
  letter-spacing: .2px;
}
.sr1-tagline{ color: var(--sr1-text-2); margin: 0; }

/* Grid + cards */
.sr1-grid{ display: grid; grid-template-columns: repeat(auto-fit, minmax(280px,1fr)); gap: 1rem; }
.sr1-card{
  border-radius: var(--sr1-radius);
  background: linear-gradient(180deg, var(--sr1-bg-1), var(--sr1-bg-2));
  border: 1px solid var(--sr1-border);
  box-shadow: 0 10px 30px rgba(0,0,0,.45);
  padding: 1.1rem 1.25rem;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.sr1-card:hover{ transform: translateY(-2px); border-color: rgba(125,211,252,.35); box-shadow: 0 16px 40px rgba(0,0,0,.55); }
.sr1-card h2{ font-size: 1.1rem; margin: .25rem 0 .75rem; color: var(--sr1-text-1); }
.sr1-card p{ color: var(--sr1-text-2); }
.sr1-card strong{ color: var(--sr1-text-1); }

/* Lists */
.sr1-list{ margin: 0; padding-left: 1.2rem; }
.sr1-list li{ margin:.35rem 0; color: var(--sr1-text-2); }

/* Badges */
.sr1-badges{ display:flex; flex-wrap:wrap; gap:.45rem; margin-top:.5rem; }
.sr1-badge{
  background: rgba(125,211,252,.12);
  color: var(--sr1-accent);
  border: 1px solid rgba(125,211,252,.35);
  padding:.25rem .55rem; border-radius:999px; font-size:.85rem;
}

/* Links/Buttons */
.sr1-links{ margin-top:.5rem; }
.sr1-btn{
  display:inline-flex; align-items:center; gap:.5rem;
  background: linear-gradient(90deg, var(--sr1-accent-2), var(--sr1-accent));
  color:#0b1220; border:none; border-radius:10px;
  padding:.6rem .9rem; font-weight:700; text-decoration:none;
  box-shadow: 0 10px 24px rgba(96,165,250,.25);
  transition: transform .17s ease, box-shadow .17s ease, filter .17s ease;
}
.sr1-btn:hover{ transform: translateY(-1px); filter:saturate(1.08); }

/* CTA card spacing */
.sr1-cta{ margin-top: 1rem; }

/* Summer Research In Progress Minimal Style */
.sr2 {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem 1rem;
  text-align: center;
}

.sr2-title {
  font-size: 2rem;
  font-weight: bold;
  color: #fff;
}

.sr2-tagline {
  margin-top: 0.5rem;
  color: #ccc;
  font-size: 1.1rem;
}