/* ── Reset & Variables ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #0d1117;
  --bg2:       #161b22;
  --bg3:       #21262d;
  --border:    #30363d;
  --accent:    #58a6ff;
  --accent2:   #3d8bcd;
  --green:     #3fb950;
  --yellow:    #d29922;
  --red:       #f85149;
  --purple:    #bc8cff;
  --text:      #e6edf3;
  --text2:     #8b949e;
  --radius:    10px;
  --shadow:    0 4px 24px rgba(0,0,0,.5);
  --trans:     .25s ease;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', 'Apple SD Gothic Neo', sans-serif;
  line-height: 1.6;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

img { max-width: 100%; border-radius: var(--radius); }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* ── Utility ── */
.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

.card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 24px;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 32px;
  position: relative;
}
.section-title span {
  color: var(--accent);
  font-size: 1rem;
  margin-left: 10px;
  opacity: .7;
  font-weight: 400;
  vertical-align: middle;
}

section { padding: 80px 0; }
section:nth-child(even) { background: var(--bg2); }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  font-size: .9rem;
  font-weight: 600;
  transition: var(--trans);
  text-decoration: none;
}
.btn-primary  { background: var(--accent);  color: #0d1117; }
.btn-primary:hover  { background: var(--accent2); text-decoration: none; color: #0d1117; }
.btn-outline  { background: transparent; color: var(--accent); border: 1.5px solid var(--accent); }
.btn-outline:hover  { background: rgba(88,166,255,.1); text-decoration: none; }
.btn-danger   { background: var(--red);     color: #fff; }
.btn-danger:hover   { background: #c0392b; text-decoration: none; }
.btn-sm { padding: 7px 14px; font-size: .82rem; }

/* ── Forms ── */
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 16px;
}
.form-field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.form-field label { font-size: .82rem; color: var(--text2); }

input[type="text"],
input[type="url"],
input[type="email"],
input[type="tel"],
input[type="month"],
input[type="file"],
select,
textarea {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  padding: 9px 12px;
  font-size: .9rem;
  transition: border var(--trans);
  width: 100%;
  font-family: inherit;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
}
textarea { resize: vertical; }
select option { background: var(--bg3); }

/* ── Navbar ── */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(13,17,23,.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  transition: var(--trans);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent);
  text-decoration: none;
}
.nav-links {
  list-style: none;
  display: flex;
  gap: 28px;
}
.nav-links a {
  color: var(--text2);
  font-size: .9rem;
  transition: color var(--trans);
  text-decoration: none;
}
.nav-links a:hover { color: var(--text); }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 24px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--trans);
}

/* ── Hero ── */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 24px 40px;
  position: relative;
  overflow: hidden;
  gap: 60px;
  flex-wrap: wrap;
}
#hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 20% 50%, rgba(88,166,255,.06) 0%, transparent 70%),
              radial-gradient(ellipse at 80% 20%, rgba(188,140,255,.05) 0%, transparent 60%);
  pointer-events: none;
}
.hero-content { max-width: 500px; }
.hero-greeting { color: var(--accent); font-size: .95rem; font-weight: 500; margin-bottom: 6px; }
.hero-name {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 10px;
}
.hero-title {
  font-size: 1.2rem;
  color: var(--purple);
  margin-bottom: 16px;
  font-weight: 500;
}
.hero-desc { color: var(--text2); margin-bottom: 32px; font-size: 1rem; }
.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; }

/* Code block */
.code-block {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  min-width: 300px;
  max-width: 400px;
  box-shadow: var(--shadow);
}
.code-header {
  background: var(--bg3);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.dot { width: 12px; height: 12px; border-radius: 50%; display: inline-block; }
.dot.red    { background: #ff5f57; }
.dot.yellow { background: #febc2e; }
.dot.green  { background: #28c840; }
.code-filename { margin-left: auto; font-size: .75rem; color: var(--text2); }
.code-body {
  padding: 20px;
  font-family: 'Fira Code', 'Consolas', monospace;
  font-size: .85rem;
  line-height: 1.8;
}
.kw  { color: var(--purple); }
.var { color: var(--accent); }
.key { color: var(--text2); }
.str { color: var(--green); }
.bool{ color: var(--red); }

.scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  color: var(--text2);
  animation: bounce 1.8s infinite;
}
@keyframes bounce {
  0%,100% { transform: translateX(-50%) translateY(0); }
  50%      { transform: translateX(-50%) translateY(8px); }
}

/* ── About ── */
.about-grid {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 40px;
  align-items: start;
}
.about-photo-wrap { display: flex; flex-direction: column; align-items: center; gap: 12px; }
.about-photo {
  width: 160px; height: 160px;
  border-radius: 50%;
  background: var(--bg3);
  border: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  font-size: 3rem;
  color: var(--text2);
}
.about-photo img { width: 100%; height: 100%; object-fit: cover; }
.photo-upload-btn {
  cursor: pointer;
  font-size: .8rem;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 5px;
}
.photo-upload-btn:hover { text-decoration: underline; }
.skill-input-row { display: flex; gap: 8px; margin-bottom: 10px; }
.skill-input-row input { flex: 1; }
.skill-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.skill-tag {
  background: rgba(88,166,255,.15);
  color: var(--accent);
  border: 1px solid rgba(88,166,255,.3);
  border-radius: 20px;
  padding: 4px 14px;
  font-size: .82rem;
  display: flex;
  align-items: center;
  gap: 6px;
}
.skill-tag .remove {
  cursor: pointer;
  color: var(--text2);
  font-size: .75rem;
  line-height: 1;
}
.skill-tag .remove:hover { color: var(--red); }

/* ── Career Timeline ── */
.career-add-form h3 { margin-bottom: 20px; color: var(--text2); font-size: 1rem; }
.timeline { position: relative; padding-left: 32px; margin-top: 16px; }
.timeline::before {
  content: '';
  position: absolute;
  left: 10px; top: 8px; bottom: 8px;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), var(--purple));
  border-radius: 1px;
}
.timeline-item {
  position: relative;
  margin-bottom: 32px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 20px 20px 24px;
  transition: border-color var(--trans);
}
.timeline-item:hover { border-color: var(--accent); }
.timeline-item::before {
  content: '';
  position: absolute;
  left: -26px; top: 22px;
  width: 12px; height: 12px;
  background: var(--accent);
  border-radius: 50%;
  border: 3px solid var(--bg);
}
.tl-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 10px; flex-wrap: wrap; }
.tl-company { font-size: 1.05rem; font-weight: 700; }
.tl-period { font-size: .8rem; color: var(--text2); background: var(--bg3); padding: 3px 10px; border-radius: 12px; white-space: nowrap; }
.tl-role { color: var(--purple); font-size: .9rem; margin: 4px 0 8px; }
.tl-desc { color: var(--text2); font-size: .88rem; }
.tl-actions { display: flex; gap: 8px; margin-top: 12px; }
.tl-btn { background: none; border: 1px solid var(--border); color: var(--text2); padding: 4px 12px; border-radius: 6px; cursor: pointer; font-size: .78rem; transition: var(--trans); }
.tl-btn:hover { border-color: var(--red); color: var(--red); }
.tl-btn.edit-btn:hover { border-color: var(--accent); color: var(--accent); }

/* ── Projects ── */
.project-add-form h3 { margin-bottom: 20px; color: var(--text2); font-size: 1rem; }
.project-filter { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 28px; }
.filter-btn {
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text2);
  padding: 7px 18px;
  border-radius: 20px;
  cursor: pointer;
  font-size: .85rem;
  transition: var(--trans);
}
.filter-btn:hover, .filter-btn.active {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}
.project-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--trans), border-color var(--trans), box-shadow var(--trans);
}
.project-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: 0 8px 32px rgba(88,166,255,.12);
}
.project-thumb {
  height: 160px;
  background: var(--bg3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  color: var(--text2);
  overflow: hidden;
}
.project-thumb img { width: 100%; height: 100%; object-fit: cover; }
.project-body { padding: 18px; }
.project-cat {
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--accent);
  margin-bottom: 6px;
}
.project-name { font-size: 1.05rem; font-weight: 700; margin-bottom: 8px; }
.project-desc { color: var(--text2); font-size: .85rem; margin-bottom: 12px; line-height: 1.5; }
.project-techs { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
.tech-tag {
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text2);
  font-size: .72rem;
  padding: 2px 10px;
  border-radius: 12px;
}
.project-links { display: flex; gap: 10px; align-items: center; }
.project-link { font-size: .82rem; display: flex; align-items: center; gap: 4px; }
.project-actions { display: flex; gap: 8px; margin-top: 10px; padding-top: 10px; border-top: 1px solid var(--border); }

/* ── Files ── */
.file-upload-area {
  text-align: center;
  border: 2px dashed var(--border) !important;
  cursor: pointer;
  transition: border-color var(--trans), background var(--trans);
}
.file-upload-area:hover, .file-upload-area.drag-over {
  border-color: var(--accent) !important;
  background: rgba(88,166,255,.04);
}
.file-upload-area i { font-size: 3rem; color: var(--text2); margin-bottom: 12px; display: block; }
.file-upload-area p { color: var(--text2); margin-bottom: 6px; }
.file-hint { font-size: .8rem; margin-bottom: 16px; }
.file-add-link h3 { margin-bottom: 20px; color: var(--text2); font-size: 1rem; }
.file-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; margin-top: 8px; }
.file-item {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  display: flex;
  gap: 14px;
  align-items: flex-start;
  transition: border-color var(--trans);
}
.file-item:hover { border-color: var(--accent); }
.file-icon { font-size: 1.8rem; flex-shrink: 0; }
.file-info { flex: 1; min-width: 0; }
.file-name { font-weight: 600; font-size: .9rem; word-break: break-all; }
.file-type-badge {
  font-size: .7rem;
  padding: 2px 8px;
  border-radius: 10px;
  display: inline-block;
  margin: 4px 0;
}
.badge-code    { background: rgba(88,166,255,.15); color: var(--accent); }
.badge-doc     { background: rgba(63,185,80,.15);  color: var(--green); }
.badge-design  { background: rgba(188,140,255,.15); color: var(--purple); }
.badge-data    { background: rgba(210,153,34,.15);  color: var(--yellow); }
.badge-other   { background: var(--bg3); color: var(--text2); }
.file-desc     { color: var(--text2); font-size: .8rem; margin-top: 4px; }
.file-actions  { display: flex; gap: 6px; margin-top: 8px; }
.file-btn { background: none; border: 1px solid var(--border); color: var(--text2); padding: 3px 10px; border-radius: 5px; cursor: pointer; font-size: .75rem; transition: var(--trans); }
.file-btn:hover { border-color: var(--red); color: var(--red); }
.file-btn.edit-btn:hover { border-color: var(--accent); color: var(--accent); }

/* ── Plans ── */
.plan-add-form h3 { margin-bottom: 20px; color: var(--text2); font-size: 1rem; }
.plans-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 18px;
}
.plan-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: border-color var(--trans), transform var(--trans);
  position: relative;
  overflow: hidden;
}
.plan-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.plan-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
}
.plan-card.status-planned::before  { background: var(--text2); }
.plan-card.status-inprogress::before { background: var(--yellow); }
.plan-card.status-done::before     { background: var(--green); }
.plan-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 8px; margin-bottom: 10px; }
.plan-title { font-weight: 700; font-size: .95rem; }
.plan-status {
  font-size: .72rem;
  padding: 3px 10px;
  border-radius: 12px;
  white-space: nowrap;
}
.status-planned   .plan-status { background: var(--bg3); color: var(--text2); }
.status-inprogress .plan-status { background: rgba(210,153,34,.15); color: var(--yellow); }
.status-done       .plan-status { background: rgba(63,185,80,.15);  color: var(--green); }
.plan-cat { font-size: .75rem; color: var(--accent); margin-bottom: 6px; }
.plan-date { font-size: .78rem; color: var(--text2); display: flex; align-items: center; gap: 5px; margin-bottom: 8px; }
.plan-desc { color: var(--text2); font-size: .85rem; line-height: 1.5; margin-bottom: 12px; }
.plan-actions { display: flex; gap: 8px; padding-top: 10px; border-top: 1px solid var(--border); }
.plan-btn { background: none; border: 1px solid var(--border); color: var(--text2); padding: 4px 12px; border-radius: 6px; cursor: pointer; font-size: .78rem; transition: var(--trans); }
.plan-btn:hover { border-color: var(--red); color: var(--red); }
.plan-btn.edit-btn:hover { border-color: var(--accent); color: var(--accent); }

/* ── Contact ── */
.contact-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.contact-info h3, .contact-links h3 { margin-bottom: 20px; }
.empty-hint { color: var(--text2); font-size: .9rem; }
.contact-link-item { display: flex; align-items: center; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--border); }
.contact-link-item:last-child { border-bottom: none; }
.contact-link-item i { width: 20px; color: var(--accent); }
.contact-link-item a { color: var(--text); font-size: .9rem; }
.contact-link-item a:hover { color: var(--accent); }

/* ── Footer ── */
footer {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  text-align: center;
  padding: 24px;
  color: var(--text2);
  font-size: .85rem;
}

/* ── Modal ── */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.7);
  z-index: 200;
  align-items: center;
  justify-content: center;
}
.modal-overlay.show { display: flex; }
.modal-wide { max-width: 580px !important; max-height: 85vh; overflow-y: auto; }
.modal {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  max-width: 360px;
  width: 90%;
  text-align: center;
}
.modal p { margin-bottom: 24px; font-size: 1rem; }
.modal-btns { display: flex; gap: 12px; justify-content: center; }

/* ── Empty state ── */
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--text2);
}
.empty-state i { font-size: 2.5rem; margin-bottom: 12px; display: block; }

/* ── Responsive ── */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 60px; left: 0; right: 0;
    background: var(--bg2);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px;
    gap: 16px;
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: flex; }
  #hero { flex-direction: column; text-align: center; gap: 32px; }
  .hero-btns { justify-content: center; }
  .about-grid { grid-template-columns: 1fr; }
  .about-photo-wrap { flex-direction: row; justify-content: flex-start; }
  .contact-wrap { grid-template-columns: 1fr; }
  .code-block { max-width: 100%; }
}

/* ── Fade-in animation ── */
.fade-in {
  animation: fadeIn .4s ease forwards;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}