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

:root {
  --bg:       #0A0A0A;
  --fg:       #f9f9f9;
  --muted:    rgba(249,249,249,0.45);
  --border:   rgba(249,249,249,0.08);
  --accent:   #f9f9f9;
  --card-bg:  #111111;
  --radius:   12px;
  --nav-h:    64px;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'Inter', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  animation: page-fadein 0.7s ease forwards;
}

@keyframes page-fadein {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: rgba(249,249,249,0.15); border-radius: 3px; }

/* navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 40px;
  background: rgba(10,10,10,0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  z-index: 100;
}

.dot {
  color: #ffffff;
  opacity: 1;
}

.nav-tabs {
  display: flex;
  list-style: none;
  gap: 4px;
}

.nav-tabs .tab {
  display: block;
  padding: 8px 18px;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s, background 0.2s;
  position: relative;
}

.nav-tabs .tab:hover {
  color: var(--fg);
  background: rgba(249,249,249,0.06);
}

.nav-tabs .tab.active {
  color: var(--fg);
  background: rgba(249,249,249,0.1);
}

/* sections */
section {
  min-height: 100vh;
  padding: calc(var(--nav-h) + 60px) 40px 80px;
  display: none;
  transition: opacity 0.35s ease;
}

section.active {
  display: flex;
  align-items: center;
  justify-content: center;
}

.section-inner {
  max-width: 960px;
  width: 100%;
  margin: 0 auto;
}

.section-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 12px;
}

#about .section-title {
  margin-bottom: 20px;
}

.section-title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  color: var(--fg);
  margin-bottom: 48px;
  line-height: 1.1;
}

#home {
  padding: 0 40px;
  min-height: 100vh;
}

/* hero */
.hero {
  text-align: center;
  max-width: 760px;
}

.hero-eyebrow {
  font-size: 1rem;
  color: var(--muted);
  font-weight: 400;
  margin-bottom: 8px;
}

.hero-name {
  font-size: clamp(4rem, 12vw, 8rem);
  font-weight: 700;
  letter-spacing: -0.06em;
  line-height: 1;
  margin-bottom: 24px;
  color: var(--fg);
  transform: translateX(0.12em);
}

.hero-sub {
  font-size: 1.125rem;
  color: var(--muted);
  max-width: 480px;
  margin: 0 auto 40px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* hero v2 */
.hero-alt {
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}

.hero-role {
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  color: rgba(249,249,249,0.5);
  margin: 4px 0 20px;
}

.hero-role-dot {
  color: rgba(249,249,249,0.3);
  margin: 0 4px;
}

.hero-alt .hero-sub {
  margin: 0 auto 40px;
}

.hero-scroll-hint {
  margin-top: 64px;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(249,249,249,0.2);
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(6px); }
}

/* buttons */
.btn {
  display: inline-block;
  padding: 13px 32px;
  border-radius: 999px;
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.25s;
  border: none;
}

.btn-primary {
  background: var(--fg);
  color: var(--bg);
  box-shadow: 0 0 0 0 rgba(249,249,249,0);
}

.btn-primary:hover {
  background: var(--fg);
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 8px 24px -4px rgba(249,249,249,0.25);
}

.btn-outline {
  background: transparent;
  color: var(--fg);
  border: 1px solid rgba(249,249,249,0.25);
}

.btn-outline:hover {
  border-color: var(--fg);
  background: rgba(249,249,249,0.08);
  transform: translateY(-2px) scale(1.03);
}

/* about */
.about-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 64px;
  align-items: start;
}

.about-text p {
  color: var(--muted);
  margin-bottom: 20px;
  font-size: 1.05rem;
}

.about-stats {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 40px;
  padding: 14px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.stat {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  transition: opacity 0.2s;
}

a.stat:hover {
  opacity: 0.7;
}

.stat:not(:last-child) {
  padding-right: 18px;
  border-right: 1px solid var(--border);
}

.stat-icon {
  display: flex;
  align-items: center;
}

.stat-icon svg {
  width: 1.1rem;
  height: 1.1rem;
  color: #ffffff;
}

.stat-label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--fg);
}

.about-skills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}

.skill-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 500;
  background: rgba(249,249,249,0.07);
  color: var(--muted);
  border-radius: 4px;
  padding: 4px 10px;
}

.skill-logo {
  width: 14px;
  height: 14px;
  color: #ffffff;
  flex-shrink: 0;
}

.about-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  text-align: center;
  min-width: 180px;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s, transform 0.2s;
}

.about-card:hover {
  border-color: rgba(249,249,249,0.3);
  background: rgba(249,249,249,0.06);
  transform: translateY(-3px);
}

.about-avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: rgba(249,249,249,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--fg);
  margin: 0 auto 16px;
}

.about-handle {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 4px;
}

.about-role {
  font-size: 0.78rem;
  color: var(--muted);
}

/* projects (not used rn) */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(420px, 1fr));
  gap: 20px;
}

.project-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color 0.2s, transform 0.2s;
}

.project-card:hover {
  border-color: rgba(249,249,249,0.2);
  transform: translateY(-2px);
}

.project-tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 3px 8px;
  margin-bottom: 16px;
}

.project-name {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 10px;
  letter-spacing: -0.02em;
}

.project-desc {
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: 20px;
  line-height: 1.6;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.project-tech span {
  font-size: 0.75rem;
  font-weight: 500;
  background: rgba(249,249,249,0.07);
  color: var(--muted);
  border-radius: 4px;
  padding: 4px 10px;
}

.project-links {
  display: flex;
  gap: 16px;
}

.project-link {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--fg);
  text-decoration: none;
  opacity: 0.7;
  transition: opacity 0.2s;
}

.project-link:hover { opacity: 1; }

/* wishlist */
.wish-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.wish-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: border-color 0.2s, transform 0.2s;
  color: var(--fg);
}

.wish-card:hover {
  border-color: rgba(249,249,249,0.22);
  transform: translateY(-3px);
}

.wish-card:hover .wish-icon {
  color: rgba(249,249,249,0.9);
}

.wish-icon {
  width: 40px;
  height: 40px;
  color: rgba(249,249,249,0.55);
  margin-bottom: 8px;
  transition: color 0.2s;
}

.wish-icon svg {
  width: 100%;
  height: 100%;
}

.wish-cat {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.wish-name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--fg);
  letter-spacing: -0.02em;
  margin: 0;
}

.wish-cta {
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: auto;
  padding-top: 14px;
  transition: color 0.2s;
}

.wish-card:hover .wish-cta {
  color: var(--fg);
}

/* donate hint thing */
.donate-hint {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 32px;
  margin-bottom: 36px;
  cursor: pointer;
  user-select: none;
  position: relative;
}

.donate-text {
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: rgba(249,249,249,0.32);
  transform-origin: center center;
  display: block;
  transition: color 0.2s;
}

.donate-hint:hover .donate-text {
  color: rgba(249,249,249,0.55);
}

.donate-checkmark {
  position: absolute;
  width: 26px;
  height: 26px;
  display: none;
  opacity: 0;
}

.donate-checkmark polyline {
  stroke: rgba(249,249,249,0.32);
  stroke-dasharray: 32;
  stroke-dashoffset: 32;
}

/* skills list (old) */
.skills-columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.skill-group-title {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 20px;
}

.skill-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.skill-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--fg);
}

.skill-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(249,249,249,0.35);
  flex-shrink: 0;
}

/* socials */
.socials-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 480px;
  margin: 0 auto;
}

#contact .section-label,
#contact .section-title {
  text-align: center;
}

.social-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 14px 20px;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 14px;
  overflow: hidden;
  transition: border-color 0.2s, background 0.2s, transform 0.2s;
}

.social-card:hover {
  border-color: rgba(249,249,249,0.3);
  background: rgba(249,249,249,0.06);
  transform: translateX(4px);
}

.social-icon {
  width: 40px;
  height: 40px;
  padding: 9px;
  border-radius: 50%;
  background: rgba(249,249,249,0.08);
  color: rgba(249,249,249,0.7);
  flex-shrink: 0;
  transition: color 0.2s, background 0.2s;
}

.social-icon svg { width: 100%; height: 100%; }

.social-card:hover .social-icon {
  color: var(--fg);
  background: rgba(249,249,249,0.16);
}

.social-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.social-platform {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--fg);
  letter-spacing: -0.02em;
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.social-handle {
  font-size: 0.78rem;
  color: var(--muted);
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.social-cta {
  font-size: 0.85rem;
  color: var(--muted);
  margin-left: auto;
  flex-shrink: 0;
  transition: color 0.2s, transform 0.2s;
}

.social-card:hover .social-cta {
  color: var(--fg);
  transform: translateX(3px);
}

/* contact form (unused) */
.contact-inner {
  max-width: 640px;
}

.contact-sub {
  font-size: 1rem;
  color: var(--muted);
  margin-top: -28px;
  margin-bottom: 40px;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0.03em;
}

.form-group input,
.form-group textarea {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px;
  color: var(--fg);
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.2s;
  resize: vertical;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(249,249,249,0.2);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: rgba(249,249,249,0.35);
}

.form-status {
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: -8px;
}

.contact-socials {
  display: flex;
  gap: 24px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}

.social-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s;
}

.social-link:hover { color: var(--fg); }

/* footer */
.footer {
  text-align: center;
  padding: 24px;
  font-size: 0.8rem;
  color: rgba(249,249,249,0.2);
  border-top: 1px solid var(--border);
}

.dot-text { color: var(--fg); opacity: 0.6; }

/* audio hint */
.audio-hint {
  position: fixed;
  top: calc(var(--nav-h) + 20px);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  height: 32px;
  cursor: pointer;
  z-index: 200;
  user-select: none;
  opacity: 0;
  pointer-events: none;
  animation: hint-appear 0.5s ease 0.8s forwards;
}

@keyframes hint-appear {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.audio-hint-text {
  white-space: nowrap;
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: rgba(249,249,249,0.32);
  transform-origin: center center;
  display: block;
}

.audio-checkmark {
  position: absolute;
  width: 26px;
  height: 26px;
  display: none;
  opacity: 0;
}

.audio-checkmark polyline {
  stroke: rgba(249,249,249,0.32);
  stroke-dasharray: 32;
  stroke-dashoffset: 32;
}

@keyframes text-implode {
  0%   { opacity: 1; transform: scaleX(1) scaleY(1); filter: blur(0px); }
  55%  { opacity: 0.25; transform: scaleX(0.25) scaleY(0.5); filter: blur(3px); }
  100% { opacity: 0; transform: scaleX(0.02) scaleY(0.05); filter: blur(10px); }
}

@keyframes check-appear {
  0%   { opacity: 0; transform: scale(0.15); }
  65%  { opacity: 1; transform: scale(1.12); }
  100% { opacity: 1; transform: scale(1); }
}

@keyframes check-draw {
  from { stroke-dashoffset: 32; }
  to   { stroke-dashoffset: 0; }
}

@keyframes check-vanish {
  0%   { opacity: 1; transform: scale(1);    filter: blur(0px); }
  35%  { opacity: 1; transform: scale(1.25); filter: blur(0px); }
  100% { opacity: 0; transform: scale(1.7);  filter: blur(4px); }
}

/* confirm leave modal */
.leave-modal {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(10,10,10,0.7);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 1000;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.leave-modal.active {
  display: flex;
}

.leave-modal.show {
  opacity: 1;
}

.leave-modal-box {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 36px 32px;
  width: 100%;
  max-width: 380px;
  text-align: center;
  transform: scale(0.95);
  transition: transform 0.2s ease;
}

.leave-modal.show .leave-modal-box {
  transform: scale(1);
}

.leave-modal-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(249,249,249,0.08);
  color: var(--fg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.leave-modal-icon svg {
  width: 28px;
  height: 28px;
}

.leave-modal-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 10px;
}

.leave-modal-link {
  font-size: 0.82rem;
  color: var(--muted);
  word-break: break-all;
  margin-bottom: 28px;
}

.leave-modal-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
}

.leave-modal-actions .btn {
  flex: 1;
}

/* responsive */
@media (max-width: 768px) {
  .navbar { padding: 0 20px; }
  .nav-tabs .tab { padding: 6px 12px; font-size: 0.8rem; }

  section { padding: calc(var(--nav-h) + 40px) 20px 60px; }

  .about-grid { grid-template-columns: 1fr; }
  .about-card { display: none; }
  .about-stats { gap: 24px; }

  .projects-grid { grid-template-columns: 1fr; }
  .wish-grid { grid-template-columns: 1fr 1fr; }
  .skills-columns { grid-template-columns: 1fr; gap: 32px; }
  .form-row { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .nav-tabs { gap: 2px; }
  .nav-tabs .tab { padding: 6px 8px; font-size: 0.75rem; }
}