/* ═══════════════════════════════════════════════════════════
   Samba Mamadou Wade — style.css
   ═══════════════════════════════════════════════════════════ */

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

/* ── Design tokens ── */
:root {
  --bg:            #f8fafc;
  --bg-alt:        #f1f5f9;
  --surface:       #ffffff;
  --border:        #e2e8f0;
  --text:          #0f172a;
  --muted:         #64748b;
  --primary:       #6366f1;
  --primary-hover: #4f46e5;
  --primary-light: #eef2ff;
  --radius:        16px;
  --shadow:        0 4px 24px rgba(0,0,0,.07);
  --shadow-hover:  0 8px 40px rgba(99,102,241,.18);
  --transition:    .2s ease;
  --font: 'Inter', system-ui, -apple-system, sans-serif;
}

.dark {
  --bg:            #060611;
  --bg-alt:        #0d0d1a;
  --surface:       #111827;
  --border:        #1f2937;
  --text:          #f1f5f9;
  --muted:         #94a3b8;
  --primary:       #818cf8;
  --primary-hover: #6366f1;
  --primary-light: #1e1b4b;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  transition: background var(--transition), color var(--transition);
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
button { font-family: inherit; cursor: pointer; }
img, svg { display: block; }
ul { list-style: none; }
textarea, input { font-family: inherit; }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 4px; }
::selection { background: var(--primary); color: #fff; }

/* ── Utilities ── */
.gradient-text {
  background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #ec4899 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 12px;
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  color: #fff;
  font-weight: 600;
  font-size: .9rem;
  border: none;
  transition: transform var(--transition), box-shadow var(--transition);
}
.btn-primary:hover { transform: scale(1.04); box-shadow: 0 6px 20px rgba(99,102,241,.4); }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 12px;
  background: var(--surface);
  color: var(--text);
  font-weight: 600;
  font-size: .9rem;
  border: 1px solid var(--border);
  transition: transform var(--transition), box-shadow var(--transition);
}
.btn-secondary:hover { transform: scale(1.04); }

.btn-full { width: 100%; justify-content: center; }

.section-padding { padding: 80px 0; }

/* ── Scroll animations ── */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .6s ease, transform .6s ease;
}
.animate-on-scroll.delay-1 { transition-delay: .1s; }
.animate-on-scroll.delay-2 { transition-delay: .2s; }
.animate-on-scroll.delay-3 { transition-delay: .3s; }
.animate-on-scroll.delay-4 { transition-delay: .4s; }
.animate-on-scroll.delay-5 { transition-delay: .5s; }
.animate-on-scroll.is-visible { opacity: 1; transform: translateY(0); }

/* ══════════════════════════════ NAVIGATION ══════════════════════════════ */
#header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: background .3s ease, border-color .3s ease;
  border-bottom: 1px solid transparent;
}
#header.scrolled {
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom-color: var(--border);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 1.1rem;
}
.logo em { color: var(--primary); font-style: normal; }
.logo-icon {
  width: 32px; height: 32px;
  border-radius: 8px;
  background: var(--primary);
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-links a {
  padding: 8px 16px;
  border-radius: 10px;
  font-size: .875rem;
  font-weight: 500;
  color: var(--muted);
  transition: color var(--transition), background var(--transition);
}
.nav-links a:hover { color: var(--primary); background: var(--primary-light); }

.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

#theme-toggle {
  width: 36px; height: 36px;
  border-radius: 10px;
  border: none;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 1.05rem;
  display: flex; align-items: center; justify-content: center;
  transition: transform var(--transition);
}
#theme-toggle:hover { transform: scale(1.1); }

/* ── Lang toggle ── */
.lang-toggle {
  display: flex;
  align-items: center;
  gap: 2px;
}
.lang-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: .78rem;
  font-weight: 700;
  cursor: pointer;
  padding: 4px 7px;
  border-radius: 6px;
  transition: all .2s;
  letter-spacing: .04em;
}
.lang-btn.active {
  color: var(--primary);
  background: var(--primary-light);
}
.lang-btn:hover:not(.active) {
  color: var(--text);
  background: var(--border);
}
.lang-sep {
  color: var(--border);
  font-size: .75rem;
  user-select: none;
  pointer-events: none;
}
.lang-toggle-mobile {
  justify-content: center;
  padding: 8px 0;
  border-top: 1px solid var(--border);
  margin-top: 4px;
}

.dark #theme-toggle .icon-sun { display: inline; }
.dark #theme-toggle .icon-moon { display: none; }
#theme-toggle .icon-sun { display: none; }
#theme-toggle .icon-moon { display: inline; }

#mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  border: none;
  background: var(--surface);
  border-radius: 8px;
  width: 36px; height: 36px;
  align-items: center; justify-content: center;
}
#mobile-menu-btn span {
  display: block;
  width: 18px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: .25s ease;
}

#mobile-menu {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 12px 24px 16px;
  background: var(--surface);
  border-top: 1px solid var(--border);
}
#mobile-menu.open { display: flex; }
.mobile-link { padding: 10px 12px; border-radius: 10px; font-size: .9rem; color: var(--text); }
.mobile-link:hover { background: var(--primary-light); color: var(--primary); }
.mobile-cta { margin-top: 8px; text-align: center; }

/* ══════════════════════════════ HERO ══════════════════════════════ */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 100px 24px 80px;
  background: var(--bg);
  position: relative;
  overflow: hidden;
}

.blob {
  position: absolute;
  width: 420px; height: 420px;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  opacity: .18;
}
.blob-left  { top: 20%; left: -100px;  background: radial-gradient(circle, #6366f1, transparent); }
.blob-right { bottom: 20%; right: -100px; background: radial-gradient(circle, #8b5cf6, transparent); }

.hero-inner {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

/* Badge */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 100px;
  font-size: .75rem;
  font-weight: 600;
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid var(--primary);
  margin-bottom: 24px;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 3.8rem);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 16px;
  color: var(--text);
}

.hero-subtitle {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 12px;
}

.hero-description {
  font-size: 1rem;
  color: var(--muted);
  line-height: 1.7;
  max-width: 480px;
  margin-bottom: 32px;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 40px;
}

.social-links {
  display: flex;
  align-items: center;
  gap: 12px;
}
.social-btn {
  width: 40px; height: 40px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  display: flex; align-items: center; justify-content: center;
  transition: transform var(--transition), color var(--transition), border-color var(--transition);
}
.social-btn:hover { transform: scale(1.1); color: var(--primary); border-color: var(--primary); }
.social-handle { font-size: .875rem; color: var(--muted); }

/* Photo hero */
.hero-visual { display: flex; flex-direction: column; gap: 16px; }

.photo-wrapper {
  position: relative;
  width: 100%;
  max-width: 340px;
  margin: 0 auto;
}

.photo-glow {
  position: absolute;
  inset: -12px;
  border-radius: 30px;
  background: linear-gradient(135deg, rgba(99,102,241,.35), rgba(139,92,246,.25), rgba(236,72,153,.2));
  filter: blur(20px);
  z-index: 0;
}

.hero-photo {
  position: relative;
  z-index: 1;
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  object-position: top center;
  border-radius: 24px;
  display: block;
  border: 3px solid transparent;
  background:
    linear-gradient(var(--surface), var(--surface)) padding-box,
    linear-gradient(135deg, #6366f1, #8b5cf6, #ec4899) border-box;
  box-shadow: 0 24px 60px rgba(0,0,0,.25);
}

.photo-badge {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 16px;
  border-radius: 100px;
  background: color-mix(in srgb, var(--surface) 85%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  font-size: .78rem;
  font-weight: 700;
  color: var(--text);
  white-space: nowrap;
  box-shadow: 0 4px 16px rgba(0,0,0,.15);
}

.photo-badge-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #22c55e;
  animation: pulse 2s ease-in-out infinite;
}

/* Mobile avatar (hero) */
.hero-avatar-mobile {
  width: 96px; height: 96px;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid transparent;
  background:
    linear-gradient(var(--surface), var(--surface)) padding-box,
    linear-gradient(135deg, #6366f1, #8b5cf6) border-box;
  box-shadow: 0 0 0 4px var(--primary-light);
  margin-bottom: 20px;
  display: none;
}
.hero-avatar-mobile img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: top center;
}

/* Stats */
.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.stat-card {
  padding: 16px;
  border-radius: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  text-align: center;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.stat-card:hover { border-color: var(--primary); box-shadow: var(--shadow-hover); }
.stat-value { font-size: 1.75rem; font-weight: 900; }
.stat-label { font-size: .75rem; color: var(--muted); margin-top: 2px; }

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  color: var(--muted);
  font-size: .75rem;
  font-weight: 500;
  animation: scrollBounce 1.8s ease-in-out infinite;
  transition: opacity .2s;
}
.scroll-indicator:hover { opacity: .6; }
@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(6px); }
}

/* ══════════════════════════════ SECTION COMMONS ══════════════════════════════ */
.section-alt { background: var(--bg-alt); }

.section-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 80px 24px;
}

.section-header { text-align: center; margin-bottom: 56px; }
.section-label {
  font-size: .8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--primary);
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 900;
  color: var(--text);
  margin-bottom: 16px;
}
.section-description {
  font-size: 1rem;
  color: var(--muted);
  max-width: 520px;
  margin: 0 auto;
}

/* ══════════════════════════════ PROJECTS ══════════════════════════════ */
.filter-group {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-bottom: 40px;
}
.filter-btn {
  padding: 8px 20px;
  border-radius: 100px;
  font-size: .875rem;
  font-weight: 600;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  transition: all var(--transition);
}
.filter-btn:hover, .filter-btn.active {
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 14px rgba(99,102,241,.4);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.project-card {
  display: flex;
  flex-direction: column;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.project-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary);
  box-shadow: 0 0 0 1px var(--primary), var(--shadow-hover);
}
.project-card[style*="none"] { display: none !important; }

.project-banner {
  height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.project-initial {
  font-size: 7rem;
  font-weight: 900;
  color: rgba(255,255,255,.15);
  position: absolute;
  line-height: 1;
  user-select: none;
}
.project-cat-badge {
  position: relative;
  z-index: 1;
  padding: 4px 12px;
  border-radius: 100px;
  font-size: .75rem;
  font-weight: 700;
  background: rgba(0,0,0,.25);
  color: #fff;
}

.gradient-blue   { background: linear-gradient(135deg, #3b82f6, #06b6d4); }
.gradient-green  { background: linear-gradient(135deg, #22c55e, #10b981); }
.gradient-purple { background: linear-gradient(135deg, #a855f7, #ec4899); }
.gradient-orange { background: linear-gradient(135deg, #f97316, #ef4444); }
.gradient-indigo { background: linear-gradient(135deg, #6366f1, #3b82f6); }
.gradient-teal   { background: linear-gradient(135deg, #14b8a6, #22c55e); }

.project-body { padding: 20px; display: flex; flex-direction: column; flex: 1; }
.project-title {
  font-weight: 700;
  font-size: .95rem;
  color: var(--text);
  margin-bottom: 8px;
  transition: color var(--transition);
}
.project-card:hover .project-title { color: var(--primary); }
.project-description { font-size: .875rem; color: var(--muted); line-height: 1.6; margin-bottom: 16px; flex: 1; }

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}
.tag {
  font-size: .7rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 6px;
  background: var(--primary-light);
  color: var(--primary);
}

.project-links {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}
.project-link-gh {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: .8rem;
  font-weight: 500;
  color: var(--muted);
  transition: opacity var(--transition);
}
.project-link-gh:hover { opacity: .7; }
.project-link-live {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: .8rem;
  font-weight: 600;
  color: var(--primary);
  transition: opacity var(--transition);
}
.project-link-live:hover { opacity: .7; }

/* ══════════════════════════════ EXPERIENCE ══════════════════════════════ */
.experience-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  align-items: start;
}

/* Timeline */
.timeline { position: relative; padding-left: 48px; }
.timeline-line {
  position: absolute;
  left: 20px;
  top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, #6366f1, #8b5cf6, transparent);
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  margin-bottom: 40px;
}
.timeline-item:last-child { margin-bottom: 0; }

.timeline-dot {
  position: absolute;
  left: -36px;
  top: 18px;
  width: 16px; height: 16px;
  border-radius: 50%;
  border: 2.5px solid var(--primary);
  background: var(--bg);
  box-shadow: 0 0 0 4px var(--primary-light);
  z-index: 1;
}

.exp-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: box-shadow var(--transition);
}
.exp-card:hover { box-shadow: var(--shadow); }

.exp-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 12px;
}
.exp-role { font-weight: 700; font-size: 1rem; color: var(--text); margin-bottom: 4px; }
.exp-company {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: .875rem;
  font-weight: 600;
  color: var(--primary);
}
.exp-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
  font-size: .75rem;
  color: var(--muted);
  flex-shrink: 0;
}
.exp-meta span { display: flex; align-items: center; gap: 4px; }

.exp-desc { font-size: .875rem; color: var(--muted); margin-bottom: 12px; }

.exp-bullets {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}
.exp-bullets li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: .875rem;
  color: var(--muted);
}
.exp-bullets li::before {
  content: '';
  display: block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--primary);
  flex-shrink: 0;
  margin-top: 7px;
}

.exp-tech { display: flex; flex-wrap: wrap; gap: 6px; }

/* Skills panel */
.skills-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  position: sticky;
  top: 88px;
}
.skills-title { font-weight: 700; font-size: 1rem; color: var(--text); margin-bottom: 20px; }

.skills-list { display: flex; flex-direction: column; gap: 18px; }
.skill-item {}
.skill-header {
  display: flex;
  justify-content: space-between;
  font-size: .875rem;
  margin-bottom: 6px;
  color: var(--text);
}
.skill-bar {
  height: 6px;
  border-radius: 4px;
  background: var(--border);
  overflow: hidden;
}
.skill-fill {
  height: 100%;
  border-radius: 4px;
  background: linear-gradient(90deg, #6366f1, #8b5cf6);
  width: 0%;
  transition: width 1s ease;
}

.education-block {
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
.edu-degree { font-weight: 700; font-size: .9rem; color: var(--text); }
.edu-school  { font-size: .8rem; color: var(--muted); margin-top: 2px; }
.edu-year    { font-size: .8rem; color: var(--primary); margin-top: 2px; }

/* ══════════════════════════════ CONTACT ══════════════════════════════ */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 40px;
  align-items: start;
}

.contact-info { display: flex; flex-direction: column; gap: 14px; }

.contact-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  border-radius: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
}
.contact-icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.contact-card-label {
  font-size: .7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--muted);
  margin-bottom: 2px;
}
.contact-card-value { font-size: .875rem; font-weight: 500; color: var(--text); }
a.contact-card-value:hover { color: var(--primary); }

.availability-badge {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(99,102,241,.08), rgba(139,92,246,.08));
  border: 1px solid rgba(99,102,241,.3);
  margin-top: 4px;
}
.avail-pulse-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: #22c55e;
  flex-shrink: 0;
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50%       { transform: scale(1.3); opacity: .7; }
}
.avail-title { font-size: .875rem; font-weight: 700; color: var(--primary); }
.avail-sub   { font-size: .75rem; color: var(--muted); margin-top: 2px; }

/* Form */
.contact-form-wrapper {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}

#form-success {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 320px;
}
.form-success-inner {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
.form-success-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}
.form-success-inner h3 {
  font-size: 1.4rem;
  font-weight: 700;
}
.form-success-inner p {
  color: var(--text-muted);
  max-width: 320px;
}

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

.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.form-group:last-of-type { margin-bottom: 0; }
.form-group label {
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--muted);
}
.form-group input,
.form-group textarea {
  padding: 12px 16px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-size: .9rem;
  outline: none;
  transition: border-color .2s ease, box-shadow .2s ease;
  resize: none;
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99,102,241,.15);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--muted); }

#contact-form { display: flex; flex-direction: column; gap: 16px; }
#contact-form .btn-primary { margin-top: 4px; }

.form-success {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 40px 0;
  gap: 12px;
}
.form-success h3 { font-size: 1.25rem; font-weight: 700; color: var(--text); }
.form-success p  { color: var(--muted); font-size: .9rem; }
.form-success .btn-primary { margin-top: 8px; }

/* ══════════════════════════════ FOOTER ══════════════════════════════ */
footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 36px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-credit { font-size: .875rem; color: var(--muted); }
.footer-socials { display: flex; align-items: center; gap: 10px; }

/* ══════════════════════════════ CHATBOT ══════════════════════════════ */
#chatbot-toggle {
  position: fixed;
  bottom: 24px; right: 24px;
  z-index: 200;
  width: 56px; height: 56px;
  border-radius: 50%;
  border: none;
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 24px rgba(99,102,241,.5);
  transition: transform var(--transition), box-shadow var(--transition);
  animation: chatbotEntrance .4s ease 1.5s both;
}
@keyframes chatbotEntrance {
  from { transform: scale(0); opacity: 0; }
  to   { transform: scale(1); opacity: 1; }
}
#chatbot-toggle:hover { transform: scale(1.1); box-shadow: 0 8px 32px rgba(99,102,241,.6); }

.chatbot-badge {
  position: absolute;
  top: -4px; right: -4px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: #ef4444;
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}

.chatbot-panel {
  position: fixed;
  bottom: 92px; right: 24px;
  z-index: 200;
  width: 360px;
  max-height: 520px;
  display: flex;
  flex-direction: column;
  border-radius: 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: 0 20px 60px rgba(0,0,0,.25);
  overflow: hidden;
  opacity: 0;
  transform: translateY(16px) scale(.97);
  pointer-events: none;
  transition: opacity .22s ease, transform .22s ease;
}
.chatbot-panel.open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: all;
}

.chatbot-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  flex-shrink: 0;
}
.chatbot-avatar {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,.2);
  display: flex; align-items: center; justify-content: center;
  color: #fff;
}
.chatbot-name  { font-size: .875rem; font-weight: 700; color: #fff; }
.chatbot-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: .7rem;
  color: rgba(255,255,255,.8);
}
.status-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: #4ade80;
  animation: pulse 2s infinite;
}

.chatbot-messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 0;
}
.chatbot-messages::-webkit-scrollbar { width: 4px; }

.msg { display: flex; align-items: flex-start; gap: 8px; }
.msg.user { flex-direction: row-reverse; }

.msg-avatar {
  width: 28px; height: 28px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}
.msg-avatar.bot  { background: linear-gradient(135deg, #6366f1, #8b5cf6); color: #fff; }
.msg-avatar.user { background: var(--border); color: var(--muted); }

.msg-bubble {
  max-width: 82%;
  padding: 10px 14px;
  border-radius: 16px;
  font-size: .82rem;
  line-height: 1.55;
}
.msg.bot .msg-bubble {
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-bottom-left-radius: 4px;
}
.msg.user .msg-bubble {
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  color: #fff;
  border-bottom-right-radius: 4px;
}

/* Typing dots */
.typing-dots {
  display: flex;
  gap: 4px;
  padding: 10px 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  border-bottom-left-radius: 4px;
  width: fit-content;
}
.typing-dots span {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--primary);
  animation: typingBounce .6s ease infinite;
}
.typing-dots span:nth-child(2) { animation-delay: .15s; }
.typing-dots span:nth-child(3) { animation-delay: .3s; }
@keyframes typingBounce {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-4px); }
}

.chatbot-suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 0 12px 10px;
}
.suggestion-btn {
  font-size: .72rem;
  padding: 5px 12px;
  border-radius: 100px;
  border: 1px solid var(--primary);
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 600;
  transition: transform var(--transition), opacity var(--transition);
}
.suggestion-btn:hover { transform: scale(1.04); opacity: .8; }

.chatbot-input-area {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}
#chatbot-input {
  flex: 1;
  padding: 10px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-size: .875rem;
  outline: none;
  transition: border-color .2s;
}
#chatbot-input:focus { border-color: var(--primary); }
#chatbot-input::placeholder { color: var(--muted); }

.chatbot-input-area button[type="submit"] {
  width: 36px; height: 36px;
  border-radius: 10px;
  border: none;
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  transition: transform var(--transition), opacity var(--transition);
}
.chatbot-input-area button[type="submit"]:hover  { transform: scale(1.08); }
.chatbot-input-area button[type="submit"]:disabled { opacity: .5; }

/* ══════════════════════════════ RESPONSIVE ══════════════════════════════ */
@media (max-width: 1024px) {
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .experience-layout { grid-template-columns: 1fr; }
  .skills-panel { position: static; }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
  .hero-avatar-mobile { display: block; }
}

@media (max-width: 768px) {
  .nav-links, .nav-cta { display: none; }
  #mobile-menu-btn { display: flex; }
  .projects-grid { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; text-align: center; }
  h1 { font-size: 2.2rem; }
  .chatbot-panel { right: 16px; left: 16px; width: auto; bottom: 88px; }
  #chatbot-toggle { bottom: 20px; right: 20px; }
}

@media (max-width: 480px) {
  .section-inner { padding: 56px 16px; }
  .contact-form-wrapper { padding: 20px; }
}