/* ==========================================================================
   M. Bilal Hashmi — Portfolio
   style.css — Simple, light, typography-led design (inspired by tomshaw.dev)
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design Tokens
   -------------------------------------------------------------------------- */
:root {
  --bg: #ffffff;
  --bg-soft: #f7f7f5;
  --border: #e7e7e4;
  --border-strong: #d8d8d4;

  --text-primary: #111111;
  --text-secondary: #55575c;
  --text-tertiary: #8a8d93;

  --accent: #2451e0;
  --accent-soft: #eef2fe;

  --font-display: 'Space Grotesk', 'Inter', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --container-w: 1120px;
  --radius-sm: 8px;
  --radius-md: 14px;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --dur-fast: 0.2s;
  --dur-med: 0.4s;
}

/* --------------------------------------------------------------------------
   2. Reset
   -------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body, h1, h2, h3, h4, p, figure, dl, dd, ul, ol { margin: 0; }
ul { list-style: none; padding: 0; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font: inherit; cursor: pointer; }
input, select, textarea { font: inherit; }

body {
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::selection { background: var(--accent); color: #fff; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

.container {
  max-width: var(--container-w);
  margin-inline: auto;
  padding-inline: 24px;
}

a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.text-accent { color: var(--accent); }

/* --------------------------------------------------------------------------
   3. Scroll reveal base state (GSAP toggles these)
   -------------------------------------------------------------------------- */
.reveal-up { opacity: 0; transform: translateY(24px); }
body.no-js .reveal-up { opacity: 1; transform: none; }

/* --------------------------------------------------------------------------
   4. Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.92rem;
  border: 1px solid transparent;
  white-space: nowrap;
  transition: background var(--dur-fast) var(--ease-out), color var(--dur-fast), border-color var(--dur-fast), transform var(--dur-fast) var(--ease-out);
}

.btn i, .btn svg { width: 16px; height: 16px; }

.btn-primary { background: var(--text-primary); color: #fff; }
.btn-primary:hover { transform: translateY(-1px); background: #000; }

.btn-outline { background: transparent; color: var(--text-primary); border-color: var(--border-strong); }
.btn-outline:hover { border-color: var(--text-primary); transform: translateY(-1px); }

.btn-store {
  background: var(--bg-soft);
  color: var(--text-primary);
  border-color: var(--border);
  font-size: 0.82rem;
  padding: 10px 16px;
}
.btn-store:hover { border-color: var(--text-primary); }

.btn-sm { padding: 9px 14px; font-size: 0.78rem; }
.btn-block { width: 100%; }

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-strong);
  padding-bottom: 2px;
  transition: color var(--dur-fast), border-color var(--dur-fast), gap var(--dur-fast);
}
.text-link:hover { color: var(--text-primary); border-color: var(--text-primary); gap: 9px; }
.text-link i { width: 14px; height: 14px; }

/* --------------------------------------------------------------------------
   5. Navbar
   -------------------------------------------------------------------------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(8px);
  -webkit-backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-fast);
}

.navbar.is-scrolled { border-bottom-color: var(--border); }

.navbar-inner {
  max-width: var(--container-w);
  margin-inline: auto;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

.nav-logo-dot { color: var(--accent); }

.nav-links { display: flex; align-items: center; gap: 34px; }

.nav-link {
  position: relative;
  font-size: 0.92rem;
  color: var(--text-secondary);
  padding-bottom: 3px;
  border-bottom: 1px solid transparent;
  transition: color var(--dur-fast), border-color var(--dur-fast);
}
.nav-link:hover { color: var(--text-primary); border-color: var(--text-primary); }

.nav-dropdown { position: relative; }

.nav-dropdown-trigger {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: none;
  border: none;
  padding-bottom: 3px;
  font-family: inherit;
}

.nav-dropdown-trigger i { width: 14px; height: 14px; transition: transform var(--dur-fast) var(--ease-out); }

.nav-dropdown:hover .nav-dropdown-trigger i,
.nav-dropdown.is-open .nav-dropdown-trigger i { transform: rotate(180deg); }

.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 18px);
  left: 50%;
  transform: translateX(-50%) translateY(-6px);
  min-width: 220px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 8px;
  box-shadow: 0 24px 48px -22px rgba(0, 0, 0, 0.28);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur-fast), transform var(--dur-fast) var(--ease-out), visibility var(--dur-fast);
  z-index: 1001;
}

.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown.is-open .nav-dropdown-menu,
.nav-dropdown:focus-within .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.nav-dropdown-link {
  display: block;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  color: var(--text-secondary);
  transition: background var(--dur-fast), color var(--dur-fast);
}

.nav-dropdown-link:hover { background: var(--bg-soft); color: var(--text-primary); }

.nav-dropdown-divider { height: 1px; background: var(--border); margin: 6px 4px; }

.nav-actions { display: flex; align-items: center; gap: 18px; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: transparent;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
}

.nav-toggle span {
  width: 16px;
  height: 1.5px;
  margin-inline: auto;
  background: var(--text-primary);
  transition: transform var(--dur-fast) var(--ease-out), opacity var(--dur-fast);
}

.nav-toggle.is-active span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle.is-active span:nth-child(2) { opacity: 0; }
.nav-toggle.is-active span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.mobile-menu {
  position: fixed;
  inset: 0;
  background: #fff;
  z-index: 999;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 36px;
  padding: 40px;
  transform: translateY(-100%);
  transition: transform var(--dur-med) var(--ease-out);
}

.mobile-menu.is-open { transform: translateY(0); }

.mobile-menu-links { display: flex; flex-direction: column; gap: 24px; }

.mobile-link {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--text-primary);
}

.mobile-dropdown-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  background: none;
  border: none;
  padding: 0;
}

.mobile-dropdown-trigger i {
  width: 20px;
  height: 20px;
  color: var(--text-tertiary);
  transition: transform var(--dur-fast) var(--ease-out);
}

.mobile-dropdown.is-open .mobile-dropdown-trigger i { transform: rotate(180deg); }

.mobile-dropdown-menu {
  max-height: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding-left: 4px;
  transition: max-height var(--dur-med) var(--ease-out), margin-top var(--dur-med) var(--ease-out);
}

.mobile-dropdown.is-open .mobile-dropdown-menu { max-height: 320px; margin-top: 16px; }

.mobile-sublink {
  font-family: var(--font-body);
  font-size: 1.05rem;
  color: var(--text-secondary);
}

/* --------------------------------------------------------------------------
   6. Sections — shared
   -------------------------------------------------------------------------- */
.section { padding: 100px 0; }
.section-soft { background: var(--bg-soft); }

.section-head { max-width: 640px; margin-bottom: 56px; }

.section-eyebrow {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--accent);
  margin-bottom: 14px;
  text-transform: uppercase;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 3.4vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.section-sub {
  margin-top: 14px;
  color: var(--text-secondary);
  font-size: 1.02rem;
  max-width: 560px;
}

/* --------------------------------------------------------------------------
   7. Hero
   -------------------------------------------------------------------------- */
.hero {
  padding-top: 168px;
  padding-bottom: 80px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 64px;
  align-items: center;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-bottom: 22px;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #16a34a;
  flex-shrink: 0;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 4.6vw, 3.6rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 22px;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 500px;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 22px;
}

.hero-actions-secondary {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}

.hero-visual { display: flex; flex-direction: column; align-items: center; gap: 16px; }

.hero-frame {
  width: 100%;
  max-width: 380px;
  aspect-ratio: 4 / 5;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: 0 20px 50px -30px rgba(0, 0, 0, 0.25);
}

.hero-photo { width: 100%; height: 100%; object-fit: cover; }

.hero-caption {
  font-size: 0.85rem;
  color: var(--text-tertiary);
  text-align: center;
  line-height: 1.6;
  max-width: 360px;
}

/* --------------------------------------------------------------------------
   7b. Trust marquee — moving logo strip
   -------------------------------------------------------------------------- */
.trust-marquee {
  overflow: hidden;
  padding: 36px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-soft);
  mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
}

.trust-track {
  display: flex;
  width: max-content;
  animation: trust-scroll 34s linear infinite;
}

.trust-track:hover { animation-play-state: paused; }

.trust-track-inner {
  display: flex;
  align-items: center;
  gap: 56px;
  padding-right: 56px;
}

@keyframes trust-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-100%); }
}

.trust-logo {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-tertiary);
  white-space: nowrap;
  transition: color var(--dur-fast);
}

.trust-logo:hover { color: var(--text-primary); }
.trust-logo svg { height: 20px; width: auto; display: block; flex-shrink: 0; }

.trust-logo.is-wordmark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

@media (prefers-reduced-motion: reduce) {
  .trust-track { animation: none; }
}

/* --------------------------------------------------------------------------
   8. Tech strip ("worked with"-style band)
   -------------------------------------------------------------------------- */
.tech-strip {
  padding: 56px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.tech-strip-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 26px;
  text-align: center;
}

.tech-strip-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px 10px;
}

.tech-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 0.86rem;
  color: var(--text-secondary);
  padding: 7px 13px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  transition: color var(--dur-fast), border-color var(--dur-fast);
}

.tech-item:hover { color: var(--text-primary); border-color: var(--border-strong); }
.tech-item i { width: 14px; height: 14px; color: var(--text-tertiary); }

/* --------------------------------------------------------------------------
   9. About
   -------------------------------------------------------------------------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 60px;
  align-items: start;
}

.about-copy p {
  color: var(--text-secondary);
  font-size: 1.03rem;
  margin-bottom: 18px;
}

.about-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }

.about-tag {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  font-size: 0.83rem;
  color: var(--text-secondary);
}

.about-tag i { width: 14px; height: 14px; color: var(--accent); }

.stat-list { display: flex; flex-direction: column; }

.stat-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 20px 0;
  border-top: 1px solid var(--border);
}

.stat-row:last-child { border-bottom: 1px solid var(--border); }

.stat-number {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-tertiary);
  text-align: right;
}

/* --------------------------------------------------------------------------
   10. Why choose me — numbered editorial list
   -------------------------------------------------------------------------- */
.why-list { display: flex; flex-direction: column; }

.why-item {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 32px;
  padding: 36px 0;
  border-top: 1px solid var(--border);
}

.why-list .why-item:last-child { border-bottom: 1px solid var(--border); }

.why-index {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-tertiary);
  padding-top: 4px;
}

.why-item h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.why-item p { color: var(--text-secondary); font-size: 0.98rem; max-width: 620px; }

/* --------------------------------------------------------------------------
   11. Projects
   -------------------------------------------------------------------------- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.project-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--dur-fast), transform var(--dur-fast) var(--ease-out);
}

.project-card:hover { border-color: var(--border-strong); transform: translateY(-3px); }

.project-media {
  display: block;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
  background: var(--bg-soft);
}
.project-media img { width: 100%; height: 100%; object-fit: contain; }

.project-body { padding: 24px; }

.case-tag {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}

.project-title-link { display: block; }

.project-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  margin-bottom: 14px;
  letter-spacing: -0.01em;
  transition: color var(--dur-fast);
}

.project-title-link:hover .project-title { color: var(--accent); }

.case-study {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 16px;
}

.case-study dt {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-tertiary);
  margin-bottom: 3px;
}

.case-study dd {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.55;
}

.project-desc { color: var(--text-secondary); font-size: 0.92rem; margin-bottom: 14px; }

.project-tech {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--text-tertiary);
  margin-bottom: 18px;
}

.project-actions { display: flex; flex-wrap: wrap; gap: 20px; }

/* --------------------------------------------------------------------------
   12. Services
   -------------------------------------------------------------------------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--border);
  border-left: 1px solid var(--border);
}

.service-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 22px 24px;
  font-size: 0.92rem;
  font-weight: 500;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  transition: background var(--dur-fast);
}

.service-item:hover { background: var(--bg-soft); }
.service-item i { width: 18px; height: 18px; color: var(--accent); flex-shrink: 0; }

/* --------------------------------------------------------------------------
   13. Process
   -------------------------------------------------------------------------- */
.process-track {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 20px;
}

.process-step { border-top: 2px solid var(--border); padding-top: 20px; }

.process-index {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  margin-bottom: 10px;
  display: block;
}

.process-step h3 {
  font-family: var(--font-display);
  font-size: 0.98rem;
  margin-bottom: 8px;
}

.process-step p { font-size: 0.82rem; color: var(--text-tertiary); }

/* --------------------------------------------------------------------------
   14. Experience
   -------------------------------------------------------------------------- */
.experience-block {
  border-left: 2px solid var(--text-primary);
  padding-left: 28px;
}

.experience-role {
  font-family: var(--font-display);
  font-size: 1.35rem;
  margin-bottom: 4px;
}

.experience-company { color: var(--accent); font-weight: 500; margin-bottom: 24px; }

.experience-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 28px;
}

.experience-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.experience-list i { width: 15px; height: 15px; color: var(--accent); flex-shrink: 0; margin-top: 3px; }

/* --------------------------------------------------------------------------
   16. Contact
   -------------------------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 60px;
  align-items: start;
}

.contact-form {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 36px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 20px;
}

.form-field { margin-bottom: 20px; }

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.form-label-optional { font-weight: 400; color: var(--text-tertiary); }

.form-input {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color var(--dur-fast), background var(--dur-fast);
}

.form-input::placeholder { color: var(--text-tertiary); }
.form-input:hover { border-color: var(--border-strong); }
.form-input:focus { background: var(--bg); border-color: var(--accent); }

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

.form-input.is-invalid { border-color: #dc2626; }

.form-error {
  display: block;
  min-height: 17px;
  margin-top: 6px;
  font-size: 0.78rem;
  color: #dc2626;
}

/* Honeypot — visually hidden (not display:none) so unsophisticated bots
   that skip display:none/hidden inputs still fill it and get caught. */
.form-honeypot {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.form-submit { margin-top: 4px; }

.form-status {
  min-height: 20px;
  margin: 14px 0 0;
  font-size: 0.85rem;
  text-align: center;
}

.form-status.is-success { color: #16a34a; }
.form-status.is-error { color: #dc2626; }

.contact-direct-panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 28px;
  padding-top: 8px;
}

.contact-divider-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}

.contact-direct {
  display: flex;
  flex-direction: column;
  width: 100%;
  gap: 14px;
}

.btn-lg { padding: 17px 34px; font-size: 1.02rem; }
.btn-lg i, .btn-lg svg { width: 19px; height: 19px; }

.copy-email {
  display: flex;
  justify-content: center;
}

.copy-email-btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-full, 999px);
  padding: 10px 18px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: border-color var(--dur-fast), color var(--dur-fast);
}

.copy-email-btn:hover { border-color: var(--text-primary); color: var(--text-primary); }
.copy-email-btn i { width: 15px; height: 15px; flex-shrink: 0; }

.copy-email-btn.is-copied { border-color: #16a34a; color: #16a34a; }

.contact-social {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
}

.contact-social-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}

.social-links { display: flex; gap: 10px; justify-content: center; }

.social-link {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  transition: color var(--dur-fast), border-color var(--dur-fast);
}

.social-link i, .social-link svg { width: 17px; height: 17px; }
.social-link:hover { color: var(--text-primary); border-color: var(--text-primary); }

/* --------------------------------------------------------------------------
   17. Footer
   -------------------------------------------------------------------------- */
.footer { border-top: 1px solid var(--border); padding-top: 48px; }

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding-bottom: 36px;
}

.footer-brand p { color: var(--text-tertiary); font-size: 0.86rem; margin-top: 6px; }

.footer-links { display: flex; gap: 24px; }
.footer-links a { color: var(--text-secondary); font-size: 0.88rem; }
.footer-links a:hover { color: var(--text-primary); }

.footer-socials { display: flex; gap: 10px; }
.footer-socials a {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  color: var(--text-secondary);
}
.footer-socials a i, .footer-socials a svg { width: 15px; height: 15px; }
.footer-socials a:hover { color: var(--text-primary); border-color: var(--text-primary); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 24px;
  text-align: center;
  color: var(--text-tertiary);
  font-size: 0.8rem;
}

/* --------------------------------------------------------------------------
   18. Back to top
   -------------------------------------------------------------------------- */
.back-to-top {
  position: fixed;
  bottom: 26px;
  right: 26px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--text-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  z-index: 500;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity var(--dur-fast), transform var(--dur-fast) var(--ease-out), visibility var(--dur-fast);
}

.back-to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top i { width: 18px; height: 18px; }

/* --------------------------------------------------------------------------
   18b. Project case-study detail pages
   -------------------------------------------------------------------------- */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  transition: color var(--dur-fast), gap var(--dur-fast);
}

.back-link:hover { color: var(--text-primary); gap: 11px; }
.back-link i { width: 15px; height: 15px; }

.detail-hero { padding-top: 152px; padding-bottom: 48px; }

.detail-hero-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 40px;
}

.detail-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.2vw, 3.2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 16px;
}

.detail-subtitle {
  font-size: 1.08rem;
  color: var(--text-secondary);
  max-width: 620px;
  margin-bottom: 28px;
}

.detail-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 32px;
}

.detail-actions { display: flex; flex-wrap: wrap; gap: 14px; }

.detail-private-note {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-tertiary);
}

.detail-private-note i { width: 14px; height: 14px; }

.detail-media {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 8px;
}

.detail-media img { width: 100%; height: auto; display: block; }

.detail-section { padding: 64px 0; border-top: 1px solid var(--border); }

.detail-section-head { max-width: 680px; margin-bottom: 28px; }

.detail-prose { display: flex; flex-direction: column; gap: 16px; max-width: 720px; }
.detail-prose p { color: var(--text-secondary); font-size: 1.02rem; }

.feature-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 28px;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--text-secondary);
  font-size: 0.96rem;
}

.feature-list i { width: 15px; height: 15px; color: var(--accent); flex-shrink: 0; margin-top: 3px; }

.related-reading {
  text-align: center;
  color: var(--text-tertiary);
  font-size: 0.9rem;
  margin-bottom: 24px;
}

.related-reading .text-link { margin-left: 4px; }

.detail-cta {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 44px;
  text-align: center;
}

.detail-cta h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.detail-cta p { color: var(--text-secondary); margin-bottom: 24px; }

.detail-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  padding: 32px 0;
}

/* --------------------------------------------------------------------------
   18c. Blog — listing page
   -------------------------------------------------------------------------- */
.blog-list { display: flex; flex-direction: column; }

.blog-list-item {
  padding: 40px 0;
  border-top: 1px solid var(--border);
}

.blog-list .blog-list-item:last-child { border-bottom: 1px solid var(--border); }

.blog-list-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.blog-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--accent);
}

.blog-date-read {
  font-size: 0.82rem;
  color: var(--text-tertiary);
}

.blog-list-title-link { display: block; }

.blog-list-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 12px;
  transition: color var(--dur-fast);
}

.blog-list-title-link:hover .blog-list-title { color: var(--accent); }

.blog-list-excerpt {
  color: var(--text-secondary);
  max-width: 680px;
  margin-bottom: 16px;
}

/* --------------------------------------------------------------------------
   18d. Blog — individual post
   -------------------------------------------------------------------------- */
.blog-post-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-tertiary);
  margin-bottom: 8px;
}

.blog-post-meta i { width: 14px; height: 14px; }
.blog-post-meta .meta-dot { color: var(--border-strong); }

.article-body h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 44px 0 16px;
}

.article-body h2:first-child { margin-top: 0; }

.article-body h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin: 30px 0 12px;
}

.article-body p { color: var(--text-secondary); font-size: 1.02rem; margin-bottom: 18px; }

.article-body ul, .article-body ol {
  color: var(--text-secondary);
  font-size: 1.02rem;
  margin: 0 0 18px;
  padding-left: 22px;
}

.article-body li { margin-bottom: 8px; }
.article-body strong { color: var(--text-primary); font-weight: 600; }

.faq-list { display: flex; flex-direction: column; margin: 8px 0 18px; }

.faq-item { padding: 20px 0; border-top: 1px solid var(--border); }
.faq-list .faq-item:last-child { border-bottom: 1px solid var(--border); }

.faq-item dt {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.02rem;
  margin-bottom: 8px;
}

.faq-item dd { margin: 0; color: var(--text-secondary); }

.related-posts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 32px;
}

.related-post-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 22px;
  transition: border-color var(--dur-fast), transform var(--dur-fast) var(--ease-out);
}

.related-post-card:hover { border-color: var(--border-strong); transform: translateY(-3px); }

.related-post-tag {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}

.related-post-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

/* --------------------------------------------------------------------------
   19. Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 1080px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .process-track { grid-template-columns: repeat(4, 1fr); row-gap: 32px; }
}

@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { order: -1; margin-bottom: 12px; }
  .hero-frame { max-width: 300px; }
  .about-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .contact-direct-panel { padding-top: 0; }
  .why-item { grid-template-columns: 56px 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .experience-list { grid-template-columns: 1fr; }
  .feature-list { grid-template-columns: 1fr; }
  .related-posts { grid-template-columns: 1fr; }
  .detail-hero { padding-top: 120px; }
}

@media (max-width: 640px) {
  .section { padding: 72px 0; }
  .services-grid { grid-template-columns: 1fr; }
  .process-track { grid-template-columns: repeat(2, 1fr); }
  .stat-row { flex-direction: column; align-items: flex-start; gap: 4px; }
  .stat-label { text-align: left; }
  .contact-form { padding: 24px; }
  .form-row { grid-template-columns: 1fr; gap: 0; }
}