/* ==========================================================================
   styles.css — Devansh Kapoor Portfolio
   Design: Editorial Light
   ========================================================================== */

/* ── 1. Design Tokens ────────────────────────────────────────────────────── */
:root {
  --bg:           #f5f2eb;
  --surface:      #ffffff;
  --surface-2:    #edeae2;
  --border:       #e0dbd0;
  --border-2:     #ccc7b8;
  --text:         #1a1814;
  --text-2:       #6b6560;
  --text-3:       #9c9890;
  --accent:       #8b6914;
  --accent-light: rgba(139, 105, 20, 0.07);
  --accent-mid:   rgba(139, 105, 20, 0.14);
  --accent-border:rgba(139, 105, 20, 0.22);

  --serif: 'Playfair Display', Georgia, serif;
  --sans:  'Inter', system-ui, -apple-system, sans-serif;

  --max:   900px;
  --pad-x: 28px;
  --gap-s: 112px;

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --t:    0.22s ease;
}

/* ── 2. Reset & Base ─────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 72px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

/* ── 3. Layout ───────────────────────────────────────────────────────────── */
.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--pad-x);
}

section {
  padding: var(--gap-s) 0;
  border-top: 1px solid var(--border);
}

/* ── 4. Section Headers ──────────────────────────────────────────────────── */
.s-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 18px;
}

.s-label::before {
  content: '';
  display: block;
  width: 20px;
  height: 1.5px;
  background: var(--accent);
  flex-shrink: 0;
}

.s-title {
  font-family: var(--serif);
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.16;
  letter-spacing: -0.025em;
  color: var(--text);
  margin-bottom: 18px;
}

.s-intro {
  font-size: 16px;
  color: var(--text-2);
  line-height: 1.8;
  max-width: 560px;
  margin-bottom: 52px;
}

/* ── 5. Buttons ──────────────────────────────────────────────────────────── */
/* Text-style download link used in hero CTAs */
.btn-text {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-2);
  border-bottom: 1px solid var(--border-2);
  padding-bottom: 1px;
  letter-spacing: 0.01em;
  transition: color var(--t), border-color var(--t);
  align-self: center;
}

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


.btn-primary {
  display: inline-block;
  background: var(--text);
  color: var(--bg);
  padding: 15px 34px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1.5px solid var(--text);
  cursor: pointer;
  transition: background var(--t), color var(--t), transform 0.2s var(--ease), box-shadow 0.2s ease;
  white-space: nowrap;
}

.btn-primary:hover {
  background: transparent;
  color: var(--text);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(26, 24, 20, 0.1);
}

.btn-secondary {
  display: inline-block;
  background: transparent;
  color: var(--text-2);
  padding: 15px 34px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 1.5px solid var(--border-2);
  cursor: pointer;
  transition: color var(--t), border-color var(--t), transform 0.2s var(--ease);
  white-space: nowrap;
}

.btn-secondary:hover {
  color: var(--text);
  border-color: var(--text-2);
  transform: translateY(-2px);
}

/* ── 6. Nav ──────────────────────────────────────────────────────────────── */
#nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  transition: background 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
  border-bottom: 1px solid transparent;
}

#nav.scrolled {
  background: rgba(255, 255, 255, 0.96);
  border-color: var(--border);
  box-shadow: 0 1px 20px rgba(26, 24, 20, 0.06);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
}

.nav-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 20px var(--pad-x);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  transition: opacity var(--t);
}

.nav-logo:hover { opacity: 0.72; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-links a {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-3);
  letter-spacing: 0.02em;
  position: relative;
  transition: color var(--t);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0; right: 0;
  height: 1.5px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.32s var(--ease);
}

.nav-links a:hover { color: var(--text); }
.nav-links a:hover::after { transform: scaleX(1); }

/* Hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 6px;
  z-index: 1001;
}

.nav-hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--text-2);
  transition: all 0.3s var(--ease);
  transform-origin: center;
}

.nav-hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); background: var(--text); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); background: var(--text); }

/* Mobile overlay */
.nav-mobile {
  position: fixed;
  inset: 0;
  background: rgba(245, 242, 235, 0.98);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 44px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s ease;
}

.nav-mobile.open { opacity: 1; pointer-events: all; }

.nav-mobile a {
  font-family: var(--serif);
  font-size: 36px;
  font-style: italic;
  color: var(--text-3);
  transition: color var(--t);
  letter-spacing: -0.02em;
}

.nav-mobile a:hover { color: var(--accent); }

/* ── 7. Hero ─────────────────────────────────────────────────────────────── */
#hero {
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: 140px 0 100px;
  border-top: none;
  position: relative;
  overflow: hidden;
}

/* Dot-grid background */
#hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(139, 105, 20, 0.13) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
  z-index: 0;
}

/* Decorative large serif behind headline */
#hero::after {
  content: 'Economics.';
  position: absolute;
  bottom: -30px;
  right: -20px;
  font-family: var(--serif);
  font-size: clamp(80px, 16vw, 180px);
  font-weight: 700;
  font-style: italic;
  color: rgba(139, 105, 20, 0.04);
  line-height: 1;
  pointer-events: none;
  user-select: none;
  z-index: 0;
  white-space: nowrap;
}

.hero-content { position: relative; z-index: 1; }

/* Available badge */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--surface);
  border: 1px solid var(--border-2);
  padding: 8px 18px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-2);
  margin-bottom: 32px;
  letter-spacing: 0.02em;
  box-shadow: 0 2px 8px rgba(26, 24, 20, 0.06);
}

.badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #22c55e;
  flex-shrink: 0;
  animation: badge-pulse 2.2s ease infinite;
}

@keyframes badge-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.35); }
  50%       { box-shadow: 0 0 0 5px rgba(34, 197, 94, 0); }
}

.hero-tag {
  display: block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
}

.hero-h1 {
  font-family: var(--serif);
  font-size: clamp(42px, 7vw, 80px);
  line-height: 1.06;
  letter-spacing: -0.03em;
  color: var(--text);
  margin-bottom: 32px;
  max-width: 760px;
}

.hero-h1 em {
  font-style: italic;
  color: var(--accent);
}

.hero-sub {
  font-size: 17px;
  color: var(--text-2);
  line-height: 1.8;
  max-width: 580px;
  margin-bottom: 44px;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 88px;
}

/* Stats row */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--border-2);
  padding-top: 44px;
}

.stat-item {
  padding: 0 28px;
  border-right: 1px solid var(--border);
}

.stat-item:first-child { padding-left: 0; }
.stat-item:last-child  { border-right: none; }

.stat-num {
  font-family: var(--serif);
  font-size: 32px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 12px;
  color: var(--text-3);
  line-height: 1.5;
}

/* ── 8. Marquee ──────────────────────────────────────────────────────────── */
.marquee-wrap {
  overflow: hidden;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  padding: 14px 0;
}

.marquee-inner {
  display: flex;
  white-space: nowrap;
  width: max-content;
  animation: marquee-scroll 32s linear infinite;
}

.marquee-wrap:hover .marquee-inner { animation-play-state: paused; }

.marquee-item {
  display: inline-flex;
  align-items: center;
  gap: 28px;
  padding: 0 28px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
}

.marquee-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
  opacity: 0.6;
}

@keyframes marquee-scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ── 9. About ────────────────────────────────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 272px;
  gap: 72px;
  align-items: start;
}

.about-body p {
  font-size: 16px;
  color: var(--text-2);
  line-height: 1.84;
  margin-bottom: 22px;
}

.about-body p:last-of-type { margin-bottom: 0; }
.about-body strong { color: var(--text); font-weight: 600; }

/* Pull quote */
.pull-quote {
  margin: 32px 0;
  padding: 24px 28px;
  border-left: 3px solid var(--accent);
  background: var(--accent-light);
}

.pull-quote p {
  font-family: var(--serif);
  font-size: 18px !important;
  font-style: italic;
  color: var(--text) !important;
  line-height: 1.6 !important;
  margin: 0 !important;
  letter-spacing: -0.01em;
}

/* Sidebar */
.about-sidebar { padding-top: 2px; }

.sidebar-block {
  border: 1px solid var(--border);
  background: var(--surface);
  padding: 20px 22px;
  margin-bottom: 10px;
  transition: border-color var(--t), box-shadow var(--t);
}

.sidebar-block:last-child { margin-bottom: 0; }

.sidebar-block:hover {
  border-color: var(--border-2);
  box-shadow: 0 2px 12px rgba(26, 24, 20, 0.06);
}

.sidebar-block-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 8px;
}

.sidebar-block-value {
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  line-height: 1.55;
}

.sidebar-block-sub {
  font-size: 12px;
  color: var(--text-3);
  margin-top: 4px;
}

/* Education strip */
.edu-strip {
  margin-top: 44px;
  padding: 24px 28px;
  border: 1px solid var(--border);
  background: var(--surface);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.edu-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 5px;
}

.edu-degree {
  font-size: 13px;
  color: var(--text-2);
  line-height: 1.5;
}

.edu-badge {
  display: inline-block;
  background: var(--accent-light);
  border: 1px solid var(--accent-border);
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 6px 14px;
  margin-top: 10px;
}

/* ── 10. Services ────────────────────────────────────────────────────────── */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.service-card {
  background: var(--surface);
  padding: 40px 32px 36px;
  position: relative;
  overflow: hidden;
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

/* Gold top accent bar */
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), rgba(139, 105, 20, 0.25));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.42s var(--ease);
}

/* Oversized background number */
.service-card::after {
  content: attr(data-num);
  position: absolute;
  bottom: -16px; right: 8px;
  font-family: var(--serif);
  font-size: 160px;
  font-weight: 700;
  color: rgba(139, 105, 20, 0.05);
  line-height: 1;
  pointer-events: none;
  user-select: none;
  transition: color 0.3s ease;
}

.service-card:hover { background: #fdfcf9; box-shadow: 0 4px 24px rgba(26, 24, 20, 0.06); }
.service-card:hover::before { transform: scaleX(1); }
.service-card:hover::after { color: rgba(139, 105, 20, 0.08); }

.service-num {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--text-3);
  margin-bottom: 28px;
}

.service-title {
  font-family: var(--serif);
  font-size: 20px;
  color: var(--text);
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin-bottom: 16px;
}

.service-body {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.78;
  margin-bottom: 28px;
  position: relative;
  z-index: 1;
}

.service-output {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  padding-top: 20px;
  border-top: 1px solid var(--border);
  line-height: 1.65;
  position: relative;
  z-index: 1;
}

.service-method {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-top: 8px;
  line-height: 1.65;
  position: relative;
  z-index: 1;
}

.credibility-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  padding: 16px 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  margin-bottom: 56px;
  font-size: 12px;
  line-height: 1.5;
}

.cred-label {
  font-weight: 700;
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-right: 4px;
}

.cred-item {
  font-size: 12px;
  color: var(--text);
  font-weight: 500;
}

.cred-sep {
  color: var(--text-muted);
}

/* ── 11. Projects ────────────────────────────────────────────────────────── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.project-card {
  border: 1px solid var(--border);
  background: var(--surface);
  padding: 32px;
  position: relative;
  overflow: hidden;
  transition: box-shadow 0.3s ease, transform 0.3s var(--ease);
}

/* Visible top color bar */
.project-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--border-2);
  transition: background 0.3s ease;
}

.project-card:hover {
  box-shadow: 0 6px 32px rgba(26, 24, 20, 0.09);
  transform: translateY(-2px);
}

.project-card:hover::before { background: var(--accent); }

.project-tag {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-light);
  border: 1px solid var(--accent-border);
  padding: 3px 10px;
  margin-bottom: 16px;
}

.project-title {
  font-family: var(--serif);
  font-size: 19px;
  color: var(--text);
  line-height: 1.32;
  letter-spacing: -0.01em;
  margin-bottom: 12px;
}

.project-desc {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.74;
}

/* ── 12. Interests ───────────────────────────────────────────────────────── */
#interests { padding: 80px 0; }

.interests-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.interest-card {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 28px 24px 30px;
  transition: box-shadow 0.3s ease, transform 0.3s var(--ease), border-color var(--t);
  position: relative;
  overflow: hidden;
}

.interest-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease);
}

.interest-card:hover {
  box-shadow: 0 4px 20px rgba(26, 24, 20, 0.08);
  transform: translateY(-2px);
  border-color: var(--border-2);
}

.interest-card:hover::after { transform: scaleX(1); }

.interest-icon-wrap {
  width: 44px;
  height: 44px;
  background: var(--accent-light);
  border: 1px solid var(--accent-border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 20px;
}

.interest-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
  margin-bottom: 10px;
}

.interest-body {
  font-size: 13px;
  color: var(--text-2);
  line-height: 1.68;
}

/* ── 13. Contact ─────────────────────────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 80px;
  align-items: start;
}

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

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

.form-label {
  display: block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 9px;
}

.form-input,
.form-textarea {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border-2);
  color: var(--text);
  font-family: var(--sans);
  font-size: 15px;
  padding: 13px 16px;
  outline: none;
  border-radius: 0;
  -webkit-appearance: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-input:focus,
.form-textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light);
}

.form-input::placeholder,
.form-textarea::placeholder { color: var(--text-3); }

.form-textarea {
  height: 130px;
  resize: vertical;
  line-height: 1.6;
}

.form-submit {
  width: 100%;
  background: var(--text);
  color: var(--bg);
  border: 1.5px solid var(--text);
  padding: 15px 32px;
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  margin-top: 4px;
  transition: background var(--t), color var(--t), transform 0.2s var(--ease), box-shadow 0.2s ease;
}

.form-submit:hover {
  background: transparent;
  color: var(--text);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(26, 24, 20, 0.1);
}

.form-submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.form-success {
  display: none;
  margin-top: 16px;
  padding: 16px 20px;
  border: 1px solid var(--accent-border);
  background: var(--accent-light);
}

.form-success p {
  font-size: 14px;
  color: var(--accent);
  font-weight: 600;
}

.form-error {
  display: none;
  margin-top: 16px;
  padding: 14px 18px;
  border: 1px solid rgba(185, 28, 28, 0.25);
  background: rgba(185, 28, 28, 0.05);
  font-size: 13px;
  color: #b91c1c;
  font-weight: 500;
}

.form-input.error,
.form-textarea.error {
  border-color: #b91c1c;
  box-shadow: 0 0 0 3px rgba(185, 28, 28, 0.08);
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20%       { transform: translateX(-6px); }
  40%       { transform: translateX(6px); }
  60%       { transform: translateX(-4px); }
  80%       { transform: translateX(4px); }
}

.form-submit.shake { animation: shake 0.4s ease; }

/* Project card link */
.project-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-top: 18px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  border-bottom: 1px solid var(--accent-border);
  padding-bottom: 1px;
  transition: gap var(--t), border-color var(--t);
}

.project-link:hover { gap: 8px; border-color: var(--accent); }

/* Contact aside */
.contact-aside { padding-top: 6px; }

.contact-aside-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 24px;
}

.contact-link {
  display: block;
  padding: 18px 0;
  border-bottom: 1px solid var(--border);
  transition: padding-left 0.2s ease;
}

.contact-link:first-of-type { border-top: 1px solid var(--border); }
.contact-link:hover { padding-left: 6px; }

.contact-link-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 5px;
}

.contact-link-val {
  font-size: 14px;
  color: var(--text-2);
  transition: color var(--t);
}

.contact-link:hover .contact-link-val { color: var(--accent); }

.contact-note {
  margin-top: 28px;
  font-size: 13px;
  color: var(--text-3);
  line-height: 1.72;
}

/* ── 14. Footer ──────────────────────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--border);
  background: var(--surface);
  padding: 30px 0;
}

.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--pad-x);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
}

.footer-copy { font-size: 12px; color: var(--text-3); }

.footer-links { display: flex; gap: 28px; }

.footer-links a {
  font-size: 12px;
  color: var(--text-3);
  transition: color var(--t);
}

.footer-links a:hover { color: var(--accent); }

/* ── 15. Scroll Animations ───────────────────────────────────────────────── */
.fade-up {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.fade-up.visible { opacity: 1; transform: none; }

.stagger > * {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.55s var(--ease), transform 0.55s var(--ease);
}

.stagger.visible > *:nth-child(1) { opacity: 1; transform: none; transition-delay: 0.00s; }
.stagger.visible > *:nth-child(2) { opacity: 1; transform: none; transition-delay: 0.11s; }
.stagger.visible > *:nth-child(3) { opacity: 1; transform: none; transition-delay: 0.22s; }
.stagger.visible > *:nth-child(4) { opacity: 1; transform: none; transition-delay: 0.33s; }

/* ── 16. Media Queries ───────────────────────────────────────────────────── */
@media (max-width: 820px) {
  :root { --gap-s: 80px; }

  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .nav-mobile { display: flex; }

  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .services-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .interests-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; gap: 48px; }

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    row-gap: 32px;
  }

  .stat-item { padding: 0; border-right: none; }
  .stat-item:nth-child(odd)  { padding-right: 16px; }
  .stat-item:nth-child(even) { padding-left: 16px; border-left: 1px solid var(--border); }

  .edu-strip { flex-direction: column; align-items: flex-start; }
  .form-row  { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
  :root { --gap-s: 64px; --pad-x: 20px; }

  .hero-h1 { font-size: clamp(36px, 10vw, 52px); }
  .hero-ctas { flex-direction: column; }
  .btn-primary, .btn-secondary { text-align: center; }
  .interests-grid { grid-template-columns: 1fr; }
}

/* ==========================================================================
   Widgets (Chat + Proposal)
   ========================================================================== */

#widgets-root {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
}

/* ── Launcher stack ── */
#launcher-stack {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
  transition: opacity 0.22s ease, transform 0.22s var(--ease);
}

#launcher-stack.hidden {
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
}

/* ── Toggle buttons ── */
.cw-toggle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--text);
  color: #fff;
  border: none;
  padding: 13px 20px 13px 16px;
  border-radius: 100px;
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(26, 24, 20, 0.22);
  transition: background var(--t), transform 0.2s var(--ease), box-shadow 0.2s ease;
  letter-spacing: 0.01em;
}

.cw-toggle:hover {
  background: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(139, 105, 20, 0.28);
}

/* Secondary toggle (Get Proposal) — outlined style */
.cw-toggle--secondary {
  background: var(--surface);
  color: var(--text);
  border: 1.5px solid var(--border-2);
  box-shadow: 0 2px 12px rgba(26, 24, 20, 0.10);
}

.cw-toggle--secondary:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  box-shadow: 0 8px 28px rgba(139, 105, 20, 0.28);
}

.cw-toggle-icon {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  color: var(--gold, #c9a84c);
  transition: transform 0.3s var(--ease);
}

.cw-toggle--secondary .cw-toggle-icon { color: var(--accent); }
.cw-toggle--secondary:hover .cw-toggle-icon { color: #fff; }

.cw-toggle-label { white-space: nowrap; }

/* ── Chat / Proposal windows (shared) ── */
.cw-window {
  width: 360px;
  max-height: 520px;
  background: var(--surface);
  border: 1px solid var(--border-2);
  border-radius: 14px;
  box-shadow: 0 12px 48px rgba(26, 24, 20, 0.16);
  display: flex;
  flex-direction: column;
  overflow: hidden;

  /* Hidden by default */
  opacity: 0;
  transform: translateY(12px) scale(0.97);
  pointer-events: none;
  transition: opacity 0.28s ease, transform 0.28s var(--ease);
}

.cw-window.open {
  opacity: 1;
  transform: none;
  pointer-events: all;
}

/* ── Header ── */
.cw-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 16px 14px;
  background: var(--text);
  border-radius: 14px 14px 0 0;
  flex-shrink: 0;
}

/* Proposal header — gold accent */
.cw-header--proposal {
  background: var(--accent);
}

.cw-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-family: var(--serif);
  font-size: 13px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  letter-spacing: -0.5px;
}

.cw-avatar--proposal {
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
}

.cw-header-info { flex: 1; min-width: 0; }

.cw-header-name {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
}

.cw-header-sub {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 2px;
}

.cw-close-btn {
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.55);
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  padding: 4px;
  flex-shrink: 0;
  transition: color var(--t);
  font-family: var(--sans);
}

.cw-close-btn:hover { color: #fff; }

/* ── Progress strip (proposal only) ── */
.cw-progress-strip {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.cw-progress-track {
  flex: 1;
  height: 4px;
  background: var(--border-2);
  border-radius: 2px;
  overflow: hidden;
}

.cw-progress-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 2px;
  width: 0%;
  transition: width 0.4s var(--ease);
}

.cw-progress-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-3);
  white-space: nowrap;
  min-width: 68px;
  text-align: right;
}

/* ── Messages ── */
.cw-messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  scroll-behavior: smooth;
  background: var(--bg);
}

.cw-messages::-webkit-scrollbar { width: 4px; }
.cw-messages::-webkit-scrollbar-track { background: transparent; }
.cw-messages::-webkit-scrollbar-thumb { background: var(--border-2); border-radius: 4px; }

/* Bubbles */
.cw-msg {
  max-width: 82%;
  padding: 10px 14px;
  font-size: 14px;
  line-height: 1.55;
  word-break: break-word;
}

.cw-msg--assistant {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 4px 14px 14px 14px;
  align-self: flex-start;
}

.cw-msg--user {
  background: var(--text);
  color: #fff;
  border-radius: 14px 14px 4px 14px;
  align-self: flex-end;
  margin-left: auto;
}

/* Typing indicator */
.cw-typing {
  display: flex !important;
  align-items: center;
  gap: 4px;
  padding: 12px 16px;
}

.cw-typing span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-3);
  animation: cw-bounce 1.1s ease infinite;
}

.cw-typing span:nth-child(2) { animation-delay: 0.18s; }
.cw-typing span:nth-child(3) { animation-delay: 0.36s; }

@keyframes cw-bounce {
  0%, 60%, 100% { transform: translateY(0); }
  30%            { transform: translateY(-6px); }
}

/* ── Input row ── */
.cw-input-row {
  display: flex;
  align-items: center;
  gap: 0;
  padding: 10px 12px;
  border-top: 1px solid var(--border);
  background: var(--surface);
  flex-shrink: 0;
}

.cw-input {
  flex: 1;
  border: 1px solid var(--border-2);
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 14px;
  padding: 9px 14px;
  border-radius: 8px 0 0 8px;
  outline: none;
  transition: border-color 0.2s ease;
  min-width: 0;
}

.cw-input:focus { border-color: var(--accent); }
.cw-input::placeholder { color: var(--text-3); }
.cw-input:disabled { opacity: 0.5; cursor: not-allowed; }

.cw-send {
  background: var(--text);
  color: #fff;
  border: none;
  padding: 0 16px;
  height: 38px;
  border-radius: 0 8px 8px 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background var(--t);
}

.cw-send:hover    { background: var(--accent); }
.cw-send:disabled { opacity: 0.4; cursor: not-allowed; }

/* ── Mobile ── */
@media (max-width: 520px) {
  #widgets-root { bottom: 16px; right: 16px; }

  .cw-window {
    position: fixed;
    bottom: 80px;
    right: 16px;
    left: 16px;
    width: auto;
    max-height: 70svh;
  }

  .cw-toggle-label { display: none; }
  .cw-toggle { padding: 14px; border-radius: 50%; }
  .cw-toggle--secondary { padding: 13px; }
}