/* ============================================================
   Sonia Dass — Portfolio
   Woodburning × Graphic Design aesthetic
   Palette: warm parchment + char brown + ember orange + ash white
   ============================================================ */

/* ── CUSTOM PROPERTIES ── */
:root {
  --parchment:  #F5EDD6;
  --parchment2: #EDE0C0;
  --char:       #1A1008;
  --charmed:    #2D1F0E;   /* medium dark wood */
  --ember:      #C45E1A;   /* burnt orange */
  --ember2:     #E8821A;   /* brighter ember */
  --ash:        #F8F2E4;   /* near-white ash */
  --smoke:      #7A6A55;   /* muted tan */
  --scarlet:    #CC0033;   /* Rutgers red */
  --grain-url:  url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)' opacity='0.06'/%3E%3C/svg%3E");

  --font-display: 'Playfair Display', Georgia, serif;
  --font-body:    'Inter', system-ui, sans-serif;
  --font-mono:    'JetBrains Mono', 'Courier New', monospace;

  --radius: 4px;
  --transition: 0.3s ease;
}

/* ── RESET ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  background-color: var(--parchment);
  color: var(--char);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ── WOODBURN GRAIN OVERLAY ── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: var(--grain-url);
  pointer-events: none;
  z-index: 9999;
  opacity: 0.5;
}

/* ── TYPOGRAPHY ── */
h1, h2, h3, h4 { font-family: var(--font-display); line-height: 1.2; }
h1 { font-size: clamp(2.8rem, 6vw, 5.5rem); font-weight: 700; }
h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.5rem); }
p  { font-size: clamp(0.9rem, 1.2vw, 1.05rem); color: var(--charmed); }

a { color: inherit; text-decoration: none; }

/* ── WOODBURN RING DECORATION (SVG inline via pseudo) ── */
.burn-ring {
  display: inline-block;
  position: relative;
}

/* ── SECTION DIVIDER (woodburn scorch line) ── */
.scorch-divider {
  width: 100%;
  height: 2px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    var(--ember) 20%,
    var(--char) 50%,
    var(--ember) 80%,
    transparent 100%
  );
  margin: 3rem 0;
  position: relative;
}
.scorch-divider::before,
.scorch-divider::after {
  content: '◆';
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.55rem;
  color: var(--ember);
}
.scorch-divider::before { left: 18%; }
.scorch-divider::after  { right: 18%; }

/* ── NAVIGATION ── */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--char);
  border-bottom: 2px solid var(--ember);
  padding: 0;
}
.nav-inner {
  max-width: 1300px;
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: clamp(0.7rem, 2vw, 1rem) clamp(1.5rem, 4vw, 3rem);
}
.nav-logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--parchment);
  letter-spacing: 0.02em;
}
.nav-logo span { color: var(--ember2); }
.nav-links {
  display: flex;
  gap: clamp(1.2rem, 3vw, 2.5rem);
  list-style: none;
}
.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--smoke);
  transition: color var(--transition);
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -3px; left: 0; right: 0;
  height: 1px;
  background: var(--ember);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}
.nav-links a:hover { color: var(--parchment); }
.nav-links a:hover::after { transform: scaleX(1); }

/* hamburger */
.nav-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--parchment);
  transition: var(--transition);
}

/* ── PAGE WRAPPER ── */
.page { max-width: 1300px; margin: auto; padding: clamp(2rem, 5vw, 4rem) clamp(1.5rem, 4vw, 3rem); }

/* ── HERO ── */
#hero {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background: var(--char);
}

/* woodgrain texture SVG background */
#hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 3px,
      rgba(180,120,50,0.03) 3px,
      rgba(180,120,50,0.03) 6px
    ),
    repeating-linear-gradient(
      88deg,
      transparent,
      transparent 60px,
      rgba(180,120,50,0.025) 60px,
      rgba(180,120,50,0.025) 61px
    );
  pointer-events: none;
}

/* ember particle canvas */
#hero-canvas {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.6;
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 1300px;
  margin: auto;
  padding: clamp(3rem, 8vw, 6rem) clamp(1.5rem, 4vw, 3rem);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}

.hero-text {}

.hero-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ember2);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.hero-tag::before {
  content: '';
  display: inline-block;
  width: 24px;
  height: 1px;
  background: var(--ember2);
}

.hero-name {
  font-family: var(--font-display);
  font-size: clamp(3rem, 6.5vw, 6rem);
  font-weight: 700;
  color: var(--parchment);
  line-height: 1.05;
  margin-bottom: 0.2rem;
  position: relative;
}

/* woodburn char effect on name — ember glow */
.hero-name .char-glow {
  background: linear-gradient(135deg, var(--parchment) 40%, var(--ember2) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-family: var(--font-mono);
  font-size: clamp(0.75rem, 1.3vw, 0.92rem);
  color: var(--ember);
  letter-spacing: 0.1em;
  margin-bottom: 1.8rem;
}

.hero-bio {
  font-size: clamp(0.9rem, 1.3vw, 1.05rem);
  color: rgba(245,237,214,0.75);
  max-width: 480px;
  line-height: 1.75;
  margin-bottom: 2.5rem;
}

.hero-cta-row {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.75rem 1.5rem;
  border: 1px solid;
  transition: all var(--transition);
  cursor: pointer;
  text-decoration: none;
}
.btn-primary {
  background: var(--ember);
  color: var(--ash);
  border-color: var(--ember);
}
.btn-primary:hover {
  background: var(--ember2);
  border-color: var(--ember2);
  box-shadow: 0 0 20px rgba(196,94,26,0.4);
}
.btn-outline {
  background: transparent;
  color: var(--parchment);
  border-color: rgba(245,237,214,0.35);
}
.btn-outline:hover {
  border-color: var(--ember);
  color: var(--ember2);
}

/* ── HERO PHOTO SLOT ── */
.hero-photo-wrap {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-photo-frame {
  position: relative;
  width: clamp(260px, 30vw, 420px);
  aspect-ratio: 3 / 4;
}

/* woodburn frame corners */
.hero-photo-frame::before,
.hero-photo-frame::after {
  content: '';
  position: absolute;
  width: 28px;
  height: 28px;
  pointer-events: none;
  z-index: 3;
}
.hero-photo-frame::before {
  top: -2px; left: -2px;
  border-top: 3px solid var(--ember);
  border-left: 3px solid var(--ember);
}
.hero-photo-frame::after {
  bottom: -2px; right: -2px;
  border-bottom: 3px solid var(--ember);
  border-right: 3px solid var(--ember);
}
.hero-photo-frame .corner-bl,
.hero-photo-frame .corner-tr {
  position: absolute;
  width: 28px;
  height: 28px;
  pointer-events: none;
  z-index: 3;
}
.hero-photo-frame .corner-bl { bottom: -2px; left: -2px; border-bottom: 3px solid var(--smoke); border-left: 3px solid var(--smoke); }
.hero-photo-frame .corner-tr { top: -2px; right: -2px; border-top: 3px solid var(--smoke); border-right: 3px solid var(--smoke); }

/* border glow */
.hero-photo-frame .frame-border {
  position: absolute;
  inset: -6px;
  border: 1px solid rgba(196,94,26,0.2);
  pointer-events: none;
  z-index: 2;
}

.photo-placeholder {
  width: 100%;
  height: 100%;
  background: var(--charmed);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  border: 1px solid rgba(196,94,26,0.25);
  position: relative;
  overflow: hidden;
}

.photo-placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 6px,
    rgba(196,94,26,0.04) 6px,
    rgba(196,94,26,0.04) 7px
  );
}

.photo-placeholder .placeholder-icon {
  font-size: 2.5rem;
  opacity: 0.35;
}
.photo-placeholder .placeholder-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--smoke);
  text-align: center;
  padding: 0 1rem;
}
.photo-placeholder .placeholder-hint {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.1em;
  color: rgba(122,106,85,0.55);
  text-align: center;
  padding: 0 1rem;
}

.hero-photo-frame img,
.photo-placeholder img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ── SECTION LABELS ── */
.section-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ember);
  margin-bottom: 0.6rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.section-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--ember), transparent);
  max-width: 120px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  color: var(--char);
  margin-bottom: 0.6rem;
}

/* ── SECTIONS ── */
.section { padding: clamp(3rem, 6vw, 6rem) 0; }
.section:nth-child(even) { background: var(--parchment2); }

/* ── ABOUT ── */
#about .about-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}

.about-photo-wrap {
  position: relative;
}
.about-photo-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  max-width: 380px;
}
.about-photo-frame::before {
  content: '';
  position: absolute;
  inset: 10px 10px -10px -10px;
  background: var(--ember);
  opacity: 0.12;
  z-index: 0;
  border-radius: 2px;
}
.about-photo-frame .photo-placeholder { z-index: 1; position: relative; }

.about-text h2 { margin-bottom: 1rem; }
.about-text p  { margin-bottom: 1rem; }

.about-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

.badge {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.3rem 0.75rem;
  border: 1px solid;
  border-radius: 2px;
}
.badge-ember { border-color: var(--ember); color: var(--ember); }
.badge-char  { border-color: var(--char); color: var(--char); background: transparent; }
.badge-rutgers { border-color: var(--scarlet); color: var(--scarlet); }


/* ── SKILLS ── */
#skills .skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1.2rem;
  margin-top: 2.5rem;
}

.skill-card {
  background: var(--char);
  border: 1px solid rgba(196,94,26,0.2);
  padding: 1.5rem;
  position: relative;
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition);
}
.skill-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--ember), transparent);
}
.skill-card:hover {
  border-color: var(--ember);
  transform: translateY(-3px);
}
.skill-card .skill-icon {
  font-size: 1.6rem;
  margin-bottom: 0.7rem;
}
.skill-card .skill-name {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--parchment);
  margin-bottom: 0.3rem;
}
.skill-card .skill-tools {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  color: var(--smoke);
  letter-spacing: 0.1em;
  line-height: 1.8;
}

/* ── WORK / EXPERIENCE ── */
#experience .exp-timeline {
  position: relative;
  padding-left: 2rem;
  margin-top: 2.5rem;
}
#experience .exp-timeline::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(
    to bottom,
    var(--ember) 0%,
    var(--smoke) 60%,
    transparent 100%
  );
}

.exp-entry {
  position: relative;
  margin-bottom: 2.5rem;
  padding-left: 1.8rem;
}
.exp-entry::before {
  content: '';
  position: absolute;
  left: -2.1rem;
  top: 0.4rem;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid var(--ember);
  background: var(--parchment);
}
.exp-entry.active::before {
  background: var(--ember);
  box-shadow: 0 0 8px rgba(196,94,26,0.5);
}

.exp-period {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  color: var(--smoke);
  margin-bottom: 0.3rem;
}
.exp-role {
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--char);
  margin-bottom: 0.1rem;
}
.exp-org {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--ember);
  letter-spacing: 0.1em;
  margin-bottom: 0.6rem;
}
.exp-desc {
  font-size: 0.92rem;
  color: var(--charmed);
  line-height: 1.65;
}

/* ── PORTFOLIO / WORK SAMPLES ── */
#portfolio .works-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.work-card {
  position: relative;
  background: var(--charmed);
  border: 1px solid rgba(196,94,26,0.2);
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition);
}
.work-card:hover {
  border-color: var(--ember);
  transform: translateY(-4px);
}

.work-photo {
  aspect-ratio: 4/3;
  position: relative;
  overflow: hidden;
}
.work-photo .photo-placeholder { height: 100%; min-height: 220px; }

.work-card-body {
  padding: 1.2rem;
}
.work-card-tag {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ember);
  margin-bottom: 0.4rem;
}
.work-card-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--parchment);
  margin-bottom: 0.4rem;
}
.work-card-desc {
  font-size: 0.82rem;
  color: var(--smoke);
  line-height: 1.6;
}

/* ── CARDAVERE INTERNSHIP HIGHLIGHT ── */
#internship {
  background: var(--char);
  color: var(--parchment);
}
#internship .section-title { color: var(--parchment); }
#internship p { color: rgba(245,237,214,0.75); }

.internship-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
  margin-top: 2.5rem;
}

.internship-samples {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
}
.internship-sample {
  aspect-ratio: 1;
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(196,94,26,0.25);
}
.internship-sample .photo-placeholder { height: 100%; min-height: 130px; }

.internship-info {}
.internship-info h3 {
  font-size: clamp(1.2rem, 2.5vw, 1.8rem);
  color: var(--parchment);
  margin-bottom: 0.8rem;
}
.internship-info p {
  font-size: 0.92rem;
  line-height: 1.7;
  margin-bottom: 0.8rem;
}

.deliverables-list {
  list-style: none;
  margin-top: 1rem;
}
.deliverables-list li {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: rgba(245,237,214,0.65);
  padding: 0.35rem 0;
  border-bottom: 1px solid rgba(196,94,26,0.1);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.deliverables-list li::before {
  content: '▸';
  color: var(--ember);
  font-size: 0.6rem;
}

/* ── CHEESE CLUB / ACTIVITIES ── */
#activities .activities-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.2rem;
  margin-top: 2.5rem;
}

.activity-card {
  border: 1px solid rgba(45,31,14,0.2);
  padding: 1.5rem;
  background: var(--ash);
  position: relative;
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.activity-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--ember), transparent);
  transform: scaleX(0);
  transition: transform var(--transition);
}
.activity-card:hover { border-color: var(--ember); box-shadow: 0 4px 20px rgba(196,94,26,0.1); }
.activity-card:hover::after { transform: scaleX(1); }

.activity-icon { font-size: 2rem; margin-bottom: 0.7rem; }
.activity-name {
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--char);
  margin-bottom: 0.4rem;
}
.activity-role {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  color: var(--ember);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}
.activity-desc {
  font-size: 0.82rem;
  color: var(--charmed);
  line-height: 1.6;
}

/* ── EDUCATION ── */
#education .edu-card {
  background: var(--char);
  color: var(--parchment);
  padding: clamp(1.5rem, 3vw, 2.5rem);
  border: 1px solid rgba(196,94,26,0.25);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 2.5rem;
}

.edu-main h3 { color: var(--parchment); font-size: 1.4rem; margin-bottom: 0.3rem; }
.edu-degree { font-family: var(--font-mono); font-size: 0.72rem; color: var(--ember); letter-spacing: 0.12em; text-transform: uppercase; margin-bottom: 0.6rem; }
.edu-detail { font-size: 0.88rem; color: rgba(245,237,214,0.65); line-height: 1.8; }

.edu-stats {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  justify-content: center;
}
.edu-stat {}
.edu-stat .stat-label { font-family: var(--font-mono); font-size: 0.58rem; letter-spacing: 0.15em; color: var(--smoke); text-transform: uppercase; margin-bottom: 0.2rem; }
.edu-stat .stat-value { font-family: var(--font-display); font-size: 1.6rem; color: var(--ember2); line-height: 1; }

/* ── CONTACT ── */
#contact {
  background: var(--char);
  color: var(--parchment);
}
#contact .section-title { color: var(--parchment); }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  margin-top: 2.5rem;
  align-items: start;
}

.contact-info p { color: rgba(245,237,214,0.7); margin-bottom: 1.5rem; }

.contact-links { display: flex; flex-direction: column; gap: 0.8rem; margin-top: 1rem; }
.contact-link {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: rgba(245,237,214,0.6);
  padding: 0.7rem 0;
  border-bottom: 1px solid rgba(196,94,26,0.12);
  transition: color var(--transition);
}
.contact-link:hover { color: var(--ember2); }
.contact-link .cl-icon { font-size: 1rem; color: var(--ember); }

.contact-photo {
  position: relative;
}
.contact-photo-frame {
  aspect-ratio: 3/4;
  max-width: 320px;
  position: relative;
}
.contact-photo-frame::before {
  content: '';
  position: absolute;
  inset: 12px 12px -12px -12px;
  border: 2px solid rgba(196,94,26,0.25);
  z-index: 0;
}
.contact-photo-frame .photo-placeholder { position: relative; z-index: 1; }

/* ── FOOTER ── */
footer {
  background: #0E0900;
  border-top: 1px solid rgba(196,94,26,0.15);
  padding: clamp(1.5rem, 3vw, 2.5rem) clamp(1.5rem, 4vw, 3rem);
  text-align: center;
}
footer p {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  color: rgba(122,106,85,0.5);
}
footer p span { color: var(--ember); }

/* ── SCROLL REVEAL ── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── RESPONSIVE ── */
@media (max-width: 960px) {
  /* hero: single column, photo below text */
  .hero-inner       { grid-template-columns: 1fr; }
  .hero-photo-wrap  { order: -1; }
  .hero-photo-frame { max-width: 280px; margin: auto; }

  /* about: single column */
  #about .about-grid { grid-template-columns: 1fr; }
  .about-photo-frame { max-width: 260px; margin: auto; }

  /* internship / edu / contact: single column */
  .internship-grid  { grid-template-columns: 1fr; }
  #education .edu-card { grid-template-columns: 1fr; }
  .contact-grid     { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  /* nav burger */
  .nav-links {
    display: none;
  }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--char);
    padding: 1.2rem;
    border-bottom: 2px solid var(--ember);
    gap: 1.2rem;
    z-index: 200;
  }
  .nav-burger { display: flex; }

  /* hero */
  .hero-cta-row { flex-direction: column; }
  /* hide empty photo placeholders on small screens — no real photos yet */
  .hero-photo-wrap  { display: none; }
  .about-photo-wrap { display: none; }
  .contact-photo    { display: none; }

  /* collapse grids that still reference 2 columns at 960px but have hidden photo col */
  #about .about-grid  { grid-template-columns: 1fr; }
  .contact-grid       { grid-template-columns: 1fr; }

  /* grids */
  #portfolio .works-grid      { grid-template-columns: 1fr; }
  #activities .activities-grid{ grid-template-columns: 1fr; }
  .internship-samples         { grid-template-columns: 1fr 1fr; }

  /* education card full-width padding */
  #education .edu-card { padding: 1.2rem; }

  /* section spacing tighter on phone */
  .section { padding: clamp(2rem, 5vw, 4rem) 0; }
  .page    { padding: clamp(1.5rem, 4vw, 3rem) clamp(1rem, 4vw, 2rem); }

  /* bigger tap targets for contact links */
  .contact-link { padding: 1rem 0; }
}

@media (max-width: 400px) {
  #activities .activities-grid { grid-template-columns: 1fr; }
  .hero-name { font-size: clamp(2.4rem, 10vw, 3.5rem); }
}