/* ============================================================
   components.css — reusable UI pieces: buttons, cards, chips,
   icons, bars, reveal/micro-interactions
   ============================================================ */

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.72rem 1.35rem;
  border-radius: 99px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform 0.22s var(--ease), box-shadow 0.22s var(--ease),
              background 0.22s var(--ease), border-color 0.22s var(--ease);
}

.btn svg {
  width: 18px;
  height: 18px;
  transition: transform 0.22s var(--ease);
}

.btn:active {
  transform: translateY(1px) scale(0.99);
}

.btn-primary {
  background: var(--grad);
  color: #fff;
  box-shadow: 0 8px 24px rgba(139, 124, 255, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 32px rgba(139, 124, 255, 0.45);
}

.btn-primary:hover svg {
  transform: translateX(3px);
}

.btn-ghost {
  background: var(--surface);
  border-color: var(--border-strong);
  color: var(--text);
}

.btn-ghost:hover {
  transform: translateY(-2px);
  background: var(--surface-strong);
  border-color: var(--accent-1);
}

/* ---------- Icon button (theme toggle, hamburger) ---------- */
.icon-btn {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease), transform 0.2s var(--ease);
}

.icon-btn:hover {
  background: var(--surface-strong);
  border-color: var(--border-strong);
  transform: translateY(-1px);
}

/* Theme toggle — show/hide per theme */
.theme-toggle .icon-sun,
.theme-toggle .icon-moon {
  display: block;
  width: 18px;
  height: 18px;
}

html[data-theme="dark"] .theme-toggle .icon-sun {
  display: none;
}

html[data-theme="light"] .theme-toggle .icon-moon {
  display: none;
}

.icon-sun {
  background: radial-gradient(circle, transparent 3px, var(--text) 3.5px, var(--text) 4.5px, transparent 5px);
  position: relative;
}

.icon-sun::before {
  content: "";
  position: absolute;
  inset: -5px;
  background:
    repeating-conic-gradient(from 0deg, var(--text) 0deg 10deg, transparent 10deg 20deg);
  -webkit-mask: radial-gradient(circle, transparent 0 8px, #000 8.5px 9.5px, transparent 10px);
          mask: radial-gradient(circle, transparent 0 8px, #000 8.5px 9.5px, transparent 10px);
  border-radius: 50%;
}

.icon-moon {
  border-radius: 50%;
  background: radial-gradient(circle at 60% 40%, transparent 0 8px, var(--text) 8.5px 9px, transparent 10px);
}

/* Hamburger */
.hamburger {
  display: none;
}

.hamburger-box,
.hamburger-box::before,
.hamburger-box::after {
  display: block;
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: var(--text);
  position: relative;
  transition: transform 0.25s var(--ease), opacity 0.2s var(--ease), top 0.25s var(--ease);
}

.hamburger-box::before,
.hamburger-box::after {
  content: "";
  position: absolute;
  left: 0;
}

.hamburger-box::before {
  top: -6px;
}

.hamburger-box::after {
  top: 6px;
}

.nav-open .hamburger-box {
  transform: rotate(45deg);
}

.nav-open .hamburger-box::before {
  top: 0;
  transform: rotate(90deg);
}

.nav-open .hamburger-box::after {
  top: 0;
  opacity: 0;
}

/* ---------- Glass card ---------- */
.glass-card {
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  transition: transform 0.28s var(--ease), box-shadow 0.28s var(--ease), border-color 0.28s var(--ease);
}

.glass-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-card-hover);
}

/* ---------- Chips / tags ---------- */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.28rem 0.78rem;
  border-radius: 99px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--surface);
  border: 1px solid var(--border);
  white-space: nowrap;
}

.chip--accent {
  color: var(--accent-1);
  background: var(--accent-soft);
  border-color: color-mix(in srgb, var(--accent-1) 30%, transparent);
}

.chip-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

/* ---------- Stat cards ---------- */
.stat-card {
  padding: 1.2rem 1.3rem;
  border-radius: var(--radius-sm);
  text-align: left;
}

.stat-card .stat-value {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-card .stat-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 0.1rem;
}

/* ---------- Project card ---------- */
.project-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.project-thumb {
  position: relative;
  aspect-ratio: 16 / 9;
  display: grid;
  place-items: center;
  overflow: hidden;
}

.project-thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(0, 0, 0, 0.45));
}

.project-thumb .mono {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 3.2rem;
  color: rgba(255, 255, 255, 0.92);
  transition: transform 0.35s var(--ease);
}

.project-card:hover .project-thumb .mono {
  transform: scale(1.12) rotate(-2deg);
}

.project-thumb .thumb-grid {
  position: absolute;
  inset: 0;
  opacity: 0.18;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.5) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.5) 1px, transparent 1px);
  background-size: 26px 26px;
}

.project-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  padding: 1.3rem 1.4rem 1.5rem;
}

.project-body h3 {
  font-size: 1.15rem;
}

.project-body p {
  font-size: 0.92rem;
  flex: 1;
}

.project-links {
  display: flex;
  gap: 1.1rem;
  margin-top: 0.5rem;
}

.project-links a {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
}

.project-links svg {
  width: 15px;
  height: 15px;
}

.project-body .project-role {
  flex: 0;
  font-weight: 600;
  color: var(--accent-1);
  font-size: 0.82rem;
  margin-top: -0.35rem;
}

.project-body .project-impact {
  flex: 0;
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.88rem;
  line-height: 1.5;
  padding: 0.65rem 0.75rem;
  border-radius: 0.65rem;
  background: var(--accent-soft);
}

.project-body .project-impact svg {
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  margin-top: 2px;
  color: var(--ok);
}

/* ---------- Timeline / experience item ---------- */
.experience-card {
  padding: 1.5rem 1.6rem;
}

.experience-card header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  flex-wrap: wrap;
}

.experience-card h3 {
  font-size: 1.2rem;
}

.experience-card .company {
  font-weight: 600;
  color: var(--accent-1);
  margin: 0.15rem 0 0.7rem;
}

.experience-card ul.stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 0.9rem;
}

.experience-card ul.stack .chip {
  font-size: 0.74rem;
  padding: 0.2rem 0.62rem;
}

.experience-card.profile-lead {
  margin-bottom: 1.5rem;
}

/* ---------- Skills ---------- */
.bento-card {
  padding: 1.5rem;
}

.bento-card h3 {
  font-size: 1.05rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.bento-card h3 svg {
  width: 18px;
  height: 18px;
  color: var(--accent-1);
}

/* Level bars */
.bar-list li {
  margin-bottom: 1.05rem;
}

.bar-list li:last-child {
  margin-bottom: 0;
}

.bar-head {
  display: flex;
  justify-content: space-between;
  font-size: 0.88rem;
  margin-bottom: 0.35rem;
}

.bar-head .pct {
  color: var(--accent-1);
  font-weight: 600;
}

.bar {
  height: 8px;
  border-radius: 99px;
  background: var(--surface-strong);
  overflow: hidden;
}

.bar > span {
  display: block;
  height: 100%;
  border-radius: 99px;
  background: var(--grad);
  width: 0;
  transition: width 1.1s var(--ease) 0.15s;
}

.is-visible .bar > span {
  width: var(--w, 100%);
}

/* Checklist */
.check-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  padding: 0.55rem 0;
  color: var(--text-muted);
}

.check-list li svg {
  flex: none;
  width: 18px;
  height: 18px;
  color: var(--ok);
  margin-top: 0.15rem;
}

/* ---------- Education ---------- */
.edu-card {
  padding: 1.5rem 1.6rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.edu-card .chip {
  align-self: flex-start;
}

/* ---------- Services ---------- */
.service-card {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.55rem;
}

.service-card .chip {
  align-self: flex-start;
}

.service-card h3 {
  font-size: 1.15rem;
}

.service-card p {
  font-size: 0.92rem;
}

.service-card .emoji {
  font-size: 1.9rem;
  line-height: 1;
}

/* ---------- Awards ---------- */
.award-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 0.8rem;
}

.award-item {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  padding: 1rem 1.2rem;
  border-radius: var(--radius-sm);
}

.award-item svg {
  flex: none;
  width: 20px;
  height: 20px;
  color: var(--warn);
  margin-top: 0.2rem;
}

.award-item strong {
  display: block;
  font-weight: 600;
  color: var(--text);
}

.award-item span {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ---------- Interests ---------- */
.interest-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.2rem;
}

.interest-card {
  padding: 1.5rem;
}

.interest-card .emoji {
  font-size: 1.9rem;
  line-height: 1;
}

.interest-card h3 {
  font-size: 1.05rem;
  margin: 0.7rem 0 0.4rem;
}

.interest-card p {
  font-size: 0.92rem;
}

/* ---------- Social icons ---------- */
.social-icons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.social-icon {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 13px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-muted);
  text-decoration: none;
  transition: transform 0.22s var(--ease), color 0.22s var(--ease),
              border-color 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.social-icon svg {
  width: 20px;
  height: 20px;
}

.social-icon:hover {
  transform: translateY(-3px);
  color: #fff;
  background: var(--grad);
  border-color: transparent;
  box-shadow: 0 10px 22px rgba(139, 124, 255, 0.4);
}

/* ---------- Contact form ---------- */
.contact-form {
  display: grid;
  gap: 1rem;
  padding: clamp(1.4rem, 3vw, 2rem);
}

.field {
  display: grid;
  gap: 0.35rem;
}

.field label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
}

.field .req {
  color: var(--accent-2);
}

.field input,
.field textarea {
  width: 100%;
  padding: 0.72rem 0.92rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--text);
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.field input::placeholder,
.field textarea::placeholder {
  color: var(--text-faint);
}

.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent-1);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.field input.is-invalid,
.field textarea.is-invalid {
  border-color: var(--danger);
  box-shadow: 0 0 0 3px rgba(251, 113, 133, 0.18);
}

.field textarea {
  resize: vertical;
  min-height: 120px;
}

.field-error {
  font-size: 0.8rem;
  color: var(--danger);
  min-height: 1em;
}

.form-submit {
  justify-content: center;
  margin-top: 0.4rem;
}

.form-status {
  font-size: 0.9rem;
  min-height: 1.4em;
}

.form-status.is-ok {
  color: var(--ok);
}

.form-status.is-error {
  color: var(--danger);
}

.spinner {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-top-color: #fff;
  animation: spin 0.7s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ---------- Math CAPTCHA ---------- */
.captcha-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.captcha-question {
  flex: none;
  min-width: 5.5rem;
  padding: 0.72rem 0.6rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: var(--accent-soft);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  text-align: center;
  color: var(--text);
}

.captcha-row input {
  flex: 1;
}

.captcha-refresh {
  flex: none;
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--text-muted);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), transform 0.25s var(--ease);
}

.captcha-refresh:hover {
  color: var(--text);
  border-color: var(--accent-1);
  transform: rotate(90deg);
}

.captcha-refresh svg {
  width: 18px;
  height: 18px;
}

/* ---------- Back to top ---------- */
.back-to-top {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  z-index: 90;
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--grad);
  color: #fff;
  box-shadow: 0 10px 26px rgba(139, 124, 255, 0.4);
  text-decoration: none;
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
}

.back-to-top svg {
  width: 20px;
  height: 20px;
}

.back-to-top.show {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}

/* ---------- Typing caret ---------- */
.caret {
  display: inline-block;
  width: 2px;
  height: 1.05em;
  vertical-align: -0.18em;
  margin-left: 3px;
  background: var(--accent-2);
  animation: caret-blink 1s steps(1) infinite;
}

@keyframes caret-blink {
  50% { opacity: 0; }
}

/* ---------- Scroll reveal ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
  transition-delay: var(--d, 0ms);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- Noscript fallback ---------- */
.noscript-note {
  position: fixed;
  inset-inline: 0;
  bottom: 0;
  z-index: 300;
  padding: 0.9rem 1.25rem;
  text-align: center;
  background: var(--warn);
  color: #14151f;
  font-weight: 600;
}

.noscript-note a {
  color: inherit;
  font-weight: 700;
}