/* =====================================================
   ENHANCEMENTS  ·  AEO + Mobile + UX
   Layered on top of styles.css. Loaded after it.
   ===================================================== */

/* ---------- Global UX ---------- */
html {
  scroll-behavior: smooth;
  /* Anchor links land below the sticky nav, not under it */
  scroll-padding-top: 88px;
}
@media (max-width: 720px) {
  html { scroll-padding-top: 76px; }
}

/* Accessible focus rings (replaces the default browser outline) */
:focus { outline: none; }
:focus-visible {
  outline: 2px solid var(--cloud-ink);
  outline-offset: 3px;
  border-radius: 4px;
}
.btn:focus-visible,
.nav-cta:focus-visible {
  outline-offset: 4px;
}

/* Skip-to-content link (visible on keyboard focus only) */
.skip-link {
  position: fixed;
  top: -120px;
  left: 12px;
  background: var(--cloud-ink);
  color: #fff;
  padding: 12px 18px;
  border-radius: 8px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  z-index: 200;
  transition: top 240ms var(--ease-cloud);
  text-decoration: none;
}
.skip-link:focus { top: 14px; }

/* Reserve space for the floating back-to-top so it doesn't cover content */
body { padding-bottom: env(safe-area-inset-bottom); }

/* ---------- FAQ section ---------- */
.faq-list {
  display: grid;
  gap: 12px;
  max-width: 760px;
  margin: 0 auto;
}
.faq-item {
  background: var(--cloud-surface);
  border: 0.5px solid var(--cloud-fog);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-cloud);
  overflow: hidden;
  transition: box-shadow 260ms var(--ease-cloud), border-color 260ms var(--ease-cloud);
}
.faq-item:hover { box-shadow: var(--shadow-cloud-hover); }
.faq-item summary {
  cursor: pointer;
  padding: 22px 26px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 600;
  color: var(--cloud-ink);
  list-style: none;
  user-select: none;
  min-height: 44px;
  line-height: 1.5;
  letter-spacing: -0.005em;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::marker { display: none; }
.faq-item summary:hover { background: var(--cloud-mist); }
.faq-icon {
  flex: none;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--cloud-mist);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  line-height: 1;
  color: var(--cloud-ink);
  font-family: var(--font-mono);
  font-weight: 400;
  transition: transform 280ms var(--ease-cloud), background 260ms var(--ease-cloud);
}
.faq-item[open] .faq-icon {
  transform: rotate(45deg);
  background: var(--cloud-ink);
  color: #fff;
}
.faq-answer {
  padding: 0 26px 24px;
  color: var(--cloud-slate);
  font-size: 15px;
  line-height: 1.75;
}
.faq-answer p { margin: 0 0 12px; }
.faq-answer p:last-child { margin-bottom: 0; }
.faq-answer strong { color: var(--cloud-ink); font-weight: 600; }
.faq-answer a {
  color: var(--cloud-ink);
  border-bottom: 1px solid var(--cloud-shadow);
  transition: border-color 180ms var(--ease-cloud);
}
.faq-answer a:hover { border-bottom-color: var(--cloud-ink); }

@media (max-width: 720px) {
  .faq-item summary {
    padding: 18px 20px;
    font-size: 15px;
    gap: 12px;
  }
  .faq-answer {
    padding: 0 20px 20px;
    font-size: 14.5px;
  }
}

/* ---------- Back-to-top button ---------- */
.back-to-top {
  position: fixed;
  right: 22px;
  bottom: calc(22px + env(safe-area-inset-bottom));
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--cloud-ink);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 22px rgba(9, 9, 11, 0.18);
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity 280ms var(--ease-cloud), transform 280ms var(--ease-cloud), box-shadow 240ms var(--ease-cloud);
  z-index: 40;
  cursor: pointer;
}
.back-to-top.show {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
.back-to-top:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 28px rgba(9, 9, 11, 0.25);
}
@media (max-width: 720px) {
  .back-to-top {
    right: 16px;
    bottom: calc(16px + env(safe-area-inset-bottom));
  }
}

/* ---------- Mobile-first polish (responsive fixes) ---------- */

/* Prevent any accidental horizontal scroll */
html, body { overflow-x: hidden; }

/* Ensure 16px+ tap targets across all interactive elements */
.btn,
.nav-cta,
.arrow-link,
.tag,
.filter {
  min-height: 36px;
}
.btn { min-height: 44px; }

/* Better tap feedback on mobile (no hover, use active) */
@media (hover: none) {
  .skill-card:active,
  .proj-card:active,
  .blog-card:active,
  .svc-card:active,
  .stat-card:active,
  .featured-card:active {
    transform: translateY(-2px);
  }
}

/* Trust-row wraps cleanly on mobile */
@media (max-width: 720px) {
  .trust-row {
    gap: 8px 14px;
    font-size: 11px;
  }
  .trust-row .sep { height: 11px; }
}

/* Hero on tiny screens (< 420px) */
@media (max-width: 480px) {
  .hero { padding-top: 96px; padding-bottom: 40px; }
  .hero h1 { font-size: clamp(2.2rem, 9vw, 2.6rem); }
  .hero .lede { font-size: 16px; line-height: 1.7; }
  .hero-visual { height: 280px; }
  .preview-card { padding: 18px; }
  .preview-card .pc-bars { height: 78px; }
  .cta-row { gap: 10px; }
  .btn { padding: 13px 22px; font-size: 14.5px; }
  .float-pill { font-size: 10.5px; padding: 5px 10px; }
}

/* About: stats grid stays nice on small screens */
@media (max-width: 480px) {
  .about-grid { gap: 40px; }
  .stat-grid { gap: 14px; }
  .stat-card { padding: 20px 16px; }
  .stat-card .num { font-size: 1.7rem; }
  .stat-card .lbl { font-size: 12px; }
}

/* Skills grid: one column on very small */
@media (max-width: 480px) {
  .skills-grid { gap: 16px; }
  .skill-card { padding: 22px; }
}

/* Featured project: better mobile padding + visual */
@media (max-width: 720px) {
  .featured-card .left { padding: 28px 24px 24px; }
  .featured-card .right { padding: 24px 24px 32px; min-height: 240px; }
  .featured-card .actions { gap: 10px; }
  .featured-badge {
    top: 14px;
    right: 14px;
    font-size: 9px;
    padding: 4px 10px;
  }
  .ats-mock { padding: 18px; max-width: 100%; }
}

/* Project cards: tighter on small phones */
@media (max-width: 480px) {
  .proj-card { padding: 24px; }
  .proj-card h3 { font-size: 15.5px; }
}

/* Process grid: clearer on phones (the row stacks at 1024) */
@media (max-width: 720px) {
  .process-step .dot { margin-bottom: 12px; }
  .process-step h3 { font-size: 15px; }
  .process-step p { font-size: 13.5px; }
}

/* Blog cards: tighter spacing on mobile */
@media (max-width: 480px) {
  .blog-card { padding: 22px; }
  .blog-thumb { height: 80px; margin-bottom: 18px; }
  .blog-card h3 { font-size: 16px; }
}

/* Contact CTA: tighter padding on mobile */
@media (max-width: 720px) {
  .contact-cta { padding: 72px 0; }
  .contact-cta h2 { font-size: 1.8rem; }
  .contact-cta p { font-size: 16px; }
  .contact-cta .cta-row { gap: 10px; }
}

/* Footer socials: 44x44 tap targets on mobile */
@media (max-width: 720px) {
  .footer .socials a {
    width: 44px;
    height: 44px;
  }
  .footer .email-link { font-size: 14.5px; word-break: break-word; }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    text-align: left;
  }
}

/* Mobile menu: full-screen overlay with bigger tap targets */
@media (max-width: 720px) {
  .mobile-menu a {
    font-size: 24px;
    padding: 18px 0;
    min-height: 48px;
  }
  .mobile-menu .nav-cta {
    margin-top: 32px;
    padding: 14px 24px;
    font-size: 15px;
  }
}

/* Service cards: keep arrow links aligned */
@media (max-width: 720px) {
  .svc-card { padding: 28px 24px; }
  .svc-card h3 { font-size: 16px; }
  .svc-card p { font-size: 14px; }
}

/* Better readability on very wide screens (super-large monitors) */
@media (min-width: 1600px) {
  :root { --container: 1240px; }
}

/* ---------- Misc accessibility & polish ---------- */

/* Selection color matches brand */
::selection {
  background: var(--cloud-ink);
  color: #fff;
}
::-moz-selection {
  background: var(--cloud-ink);
  color: #fff;
}

/* Reduce motion preference globally */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .back-to-top { transition: none; }
}

/* ---------- Education timeline ---------- */
.edu-timeline {
  position: relative;
  max-width: 860px;
  margin: 0 auto;
  display: grid;
  gap: 20px;
}
.edu-timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 14px;
  bottom: 14px;
  width: 2px;
  background: var(--cloud-fog);
}
.edu-card {
  position: relative;
  margin-left: 38px;
  background: var(--cloud-surface);
  border: 0.5px solid rgba(200, 210, 220, 0.5);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-cloud);
  padding: 26px 30px;
  transition: transform 300ms var(--ease-cloud), box-shadow 300ms var(--ease-cloud), border-color 300ms var(--ease-cloud);
}
.edu-card::before {
  content: "";
  position: absolute;
  left: -38px;
  top: 30px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--cloud-surface);
  border: 2px solid var(--cloud-ink);
  box-shadow: 0 0 0 4px var(--cloud-white);
}
.edu-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-cloud-hover);
}
.edu-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}
.edu-when {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cloud-ink);
  font-weight: 500;
}
.edu-place {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--cloud-dusk);
}
.edu-degree {
  font-size: 18px;
  font-weight: 600;
  color: var(--cloud-ink);
  margin: 0 0 4px;
  line-height: 1.3;
  letter-spacing: -0.01em;
}
.edu-cgpa {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--cloud-dusk);
  background: var(--cloud-mist);
  border: 1px solid var(--cloud-fog);
  border-radius: 100px;
  padding: 2px 9px;
  vertical-align: middle;
  margin-left: 6px;
}
.edu-school {
  font-size: 14px;
  font-weight: 500;
  color: var(--cloud-slate);
  margin-bottom: 18px;
}
.edu-meta {
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 400;
  color: var(--cloud-dusk);
  letter-spacing: 0.02em;
  margin-left: 6px;
}
.edu-courses .edu-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cloud-dusk);
  margin-bottom: 10px;
}

/* ---------- Technical Toolkit ---------- */
.toolkit {
  max-width: 980px;
  margin: 72px auto 0;
}
.toolkit-head {
  text-align: center;
  margin-bottom: 26px;
}
.toolkit-head .eyebrow { display: block; margin-bottom: 8px; }
.toolkit-title {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: clamp(1.4rem, 2.6vw, 1.7rem);
  color: var(--cloud-ink);
  margin: 0;
  letter-spacing: -0.01em;
}
.tk-row {
  display: grid;
  grid-template-columns: 210px 1fr;
  gap: 24px;
  align-items: start;
  background: var(--cloud-mist);
  border: 0.5px solid var(--cloud-fog);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  margin-bottom: 14px;
}
.tk-row:last-child { margin-bottom: 0; }
.tk-cat {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--cloud-ink);
  letter-spacing: -0.005em;
  padding-top: 3px;
}

@media (max-width: 720px) {
  .edu-card { margin-left: 30px; padding: 22px 22px; }
  .edu-card::before { left: -30px; top: 26px; width: 14px; height: 14px; }
  .edu-timeline::before { left: 6px; }
  .edu-degree { font-size: 16.5px; }
  .tk-row { grid-template-columns: 1fr; gap: 12px; padding: 18px 20px; }
  .tk-cat { padding-top: 0; }
}
@media (max-width: 480px) {
  .edu-card { margin-left: 24px; }
  .edu-card::before { left: -24px; }
  .edu-top { gap: 6px; }
  .toolkit { margin-top: 56px; }
}

/* ---------- Process cards (visual redesign) ---------- */
.proc-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  position: relative;
}

/* Dotted connector line running through the visual area tops */
.proc-grid::before {
  content: '';
  position: absolute;
  top: 72px;
  left: calc(12.5% + 12px);
  right: calc(12.5% + 12px);
  height: 1px;
  background: repeating-linear-gradient(
    90deg,
    rgba(14,138,107,0.22) 0,
    rgba(14,138,107,0.22) 6px,
    transparent 6px,
    transparent 14px
  );
  pointer-events: none;
  z-index: 0;
}

.proc-card {
  background: var(--cloud-surface);
  border-radius: var(--radius-card);
  border: 1px solid var(--card-border);
  box-shadow: var(--shadow-cloud);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  position: relative;
  z-index: 1;
  transition: transform 300ms var(--ease-cloud),
              box-shadow 300ms var(--ease-cloud),
              border-color 300ms var(--ease-cloud);
}

.proc-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-cloud-hover);
  border-color: var(--accent-line);
}

/* Visual / illustration area */
.proc-visual {
  height: 144px;
  background: var(--cloud-mist);
  border-bottom: 1px solid var(--cloud-fog);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  transition: background 300ms var(--ease-cloud);
}

/* Subtle dot grid behind illustration */
.proc-visual::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, var(--cloud-fog) 1px, transparent 1px);
  background-size: 16px 16px;
  opacity: 0.65;
}

.proc-card:hover .proc-visual {
  background: oklch(0.965 0.014 145);
}

.proc-illustration {
  position: relative;
  z-index: 1;
  transition: transform 320ms var(--ease-cloud);
}

.proc-card:hover .proc-illustration {
  transform: scale(1.07) translateY(-3px);
}

/* Body */
.proc-body {
  padding: 22px 22px 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.proc-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 11px;
}

.proc-num {
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.04em;
  line-height: 1;
}

.proc-phase {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cloud-dusk);
  background: var(--cloud-mist);
  border: 1px solid var(--cloud-fog);
  border-radius: 100px;
  padding: 4px 10px;
  line-height: 1;
}

.proc-card h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--cloud-ink);
  margin: 0 0 7px;
  letter-spacing: -0.015em;
  line-height: 1.25;
}

.proc-card p {
  font-size: 13.5px;
  color: var(--cloud-slate);
  line-height: 1.65;
  margin: 0;
  flex: 1;
}

/* "You get" outcome row */
.proc-outcome {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--cloud-fog);
}

.proc-check {
  flex: none;
  margin-top: 1px;
}

.proc-outcome-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--accent);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 3px;
  font-weight: 600;
}

.proc-outcome-text {
  font-size: 12.5px;
  color: var(--cloud-slate);
  line-height: 1.45;
  font-weight: 500;
}

@media (max-width: 1100px) {
  .proc-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .proc-grid::before { display: none; }
}

@media (max-width: 600px) {
  .proc-grid { grid-template-columns: 1fr; }
  .proc-visual { height: 130px; }
}

/* ---------- Project card spacing polish ---------- */
.proj-card .tag-row { margin: 16px 0 2px; }
.proj-card .tag { padding: 4px 11px; }
.proj-card .actions { margin-top: 16px; }

/* ---------- Booking calendar modal ---------- */
.cal-modal {
  position: fixed;
  inset: 0;
  z-index: 130;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 320ms var(--ease-cloud), visibility 0s linear 320ms;
}
.cal-modal.open {
  opacity: 1;
  visibility: visible;
  transition: opacity 320ms var(--ease-cloud);
}
.cal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(9, 9, 11, 0.42);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}
.cal-dialog {
  position: relative;
  width: 100%;
  max-width: 880px;
  max-height: calc(100vh - 48px);
  display: flex;
  flex-direction: column;
  background: var(--cloud-surface);
  border: 0.5px solid var(--cloud-fog);
  border-radius: var(--radius-card);
  box-shadow: 0 30px 80px rgba(9, 9, 11, 0.28);
  overflow: hidden;
  transform: translateY(16px) scale(0.985);
  transition: transform 380ms var(--ease-cloud);
}
.cal-modal.open .cal-dialog { transform: translateY(0) scale(1); }
.cal-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding: 26px 28px 18px;
  border-bottom: 1px solid var(--cloud-fog);
}
.cal-head-text { min-width: 0; }
.cal-eyebrow {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cloud-dusk);
  margin-bottom: 8px;
}
.cal-head h3 {
  font-family: var(--font-sans);
  font-size: 22px;
  font-weight: 700;
  color: var(--cloud-ink);
  margin: 0 0 6px;
  letter-spacing: -0.01em;
}
.cal-sub {
  font-size: 14px;
  color: var(--cloud-slate);
  margin: 0;
  line-height: 1.6;
}
.cal-sub a {
  color: var(--cloud-ink);
  border-bottom: 1px solid var(--cloud-shadow);
  word-break: break-word;
}
.cal-sub a:hover { border-bottom-color: var(--cloud-ink); }
.cal-close {
  flex: none;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--cloud-mist);
  border: 1px solid var(--cloud-fog);
  color: var(--cloud-ink);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 240ms var(--ease-cloud), color 240ms var(--ease-cloud), transform 320ms var(--ease-cloud);
}
.cal-close:hover {
  background: var(--cloud-ink);
  color: #fff;
  transform: rotate(90deg);
}
.cal-body {
  flex: 1;
  min-height: 0;
  padding: 18px;
  background: var(--cloud-mist);
}
.cal-frame {
  display: block;
  width: 100%;
  height: 600px;
  max-height: 70vh;
  border: 0;
  border-radius: var(--radius-md);
  background: #fff;
  box-shadow: var(--shadow-cloud);
}
@media (max-width: 720px) {
  .cal-modal { padding: 0; }
  .cal-dialog {
    max-width: 100%;
    height: 100vh;
    height: 100dvh;
    max-height: none;
    border-radius: 0;
  }
  .cal-head { padding: 18px 20px 14px; }
  .cal-head h3 { font-size: 19px; }
  .cal-frame { height: 100%; max-height: none; }
}
@media (prefers-reduced-motion: reduce) {
  .cal-modal,
  .cal-dialog,
  .cal-close { transition: opacity 200ms linear; }
  .cal-dialog { transform: none; }
}