/* === VARIABLES === */
:root {
  --bg-primary: #080810;
  --bg-secondary: #0e0e1a;
  --bg-card: rgba(255, 255, 255, 0.04);
  --border: rgba(255, 255, 255, 0.08);
  --accent: #7c3aed;
  --accent-2: #3b82f6;
  --gradient: linear-gradient(135deg, #7c3aed 0%, #3b82f6 100%);
  --gradient-glow: linear-gradient(135deg, rgba(124,58,237,0.15) 0%, rgba(59,130,246,0.15) 100%);
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --purple-soft: #a78bfa;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 48px rgba(124, 58, 237, 0.18);
}

/* === RESET & BASE === */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  overflow-x: hidden;
  min-height: 100vh;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 10% 10%, rgba(124,58,237,0.07) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 90% 90%, rgba(59,130,246,0.07) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
}

/* === NAVBAR === */
.navbar {
  background: rgba(8, 8, 16, 0.85) !important;
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: 1rem 0;
}

.brand-text {
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--text-primary) !important;
  text-decoration: none;
  line-height: 1;
}
.brand-dot {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: 1.5rem;
  line-height: 0;
  vertical-align: middle;
}

.navbar-toggler {
  border: 1px solid var(--border);
  color: var(--text-secondary);
}
.navbar-toggler:focus { box-shadow: none; }
.navbar-toggler-icon {
  filter: invert(1) brightness(0.6);
}

.nav-link {
  color: var(--text-secondary) !important;
  font-weight: 500;
  font-size: 0.9rem;
  letter-spacing: 0.02em;
  padding: 0.4rem 0.85rem !important;
  border-radius: 8px;
  transition: color 0.2s, background 0.2s;
}
.nav-link:hover {
  color: var(--text-primary) !important;
  background: rgba(255,255,255,0.05);
}
.nav-link.active {
  color: var(--purple-soft) !important;
  background: rgba(124,58,237,0.1);
}

/* === GRADIENT TEXT === */
.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* === SECTION TITLE === */
.section-title {
  font-size: 1.85rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 3rem;
  letter-spacing: -0.02em;
}
.section-title::after {
  content: '';
  display: block;
  width: 48px;
  height: 3px;
  background: var(--gradient);
  margin: 0.75rem auto 0;
  border-radius: 2px;
}

/* === HERO === */
.hero {
  padding: 5rem 0 4rem;
  position: relative;
  z-index: 1;
}

.hero-photo {
  width: 210px;
  height: 210px;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: 0 0 0 3px var(--accent), var(--shadow-glow);
  transition: box-shadow 0.3s;
}
.hero-photo:hover {
  box-shadow: 0 0 0 4px var(--accent-2), 0 0 64px rgba(59,130,246,0.25);
}

.hero-eyebrow {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--purple-soft);
  margin-bottom: 0.5rem;
}
.hero-name {
  font-size: 2.75rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 0.4rem;
}
.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
  font-weight: 400;
}
.hero-bio {
  color: var(--text-secondary);
  line-height: 1.75;
  font-size: 0.97rem;
  max-width: 520px;
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.5rem;
}
.tech-tag {
  background: rgba(124,58,237,0.1);
  border: 1px solid rgba(124,58,237,0.22);
  color: var(--purple-soft);
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  transition: background 0.2s, border-color 0.2s;
}
.tech-tag:hover {
  background: rgba(124,58,237,0.18);
  border-color: rgba(124,58,237,0.45);
}

.hero-actions {
  margin-top: 2rem;
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.btn-primary-grad {
  background: var(--gradient);
  color: #fff;
  border: none;
  padding: 0.65rem 1.5rem;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  transition: opacity 0.2s, transform 0.2s;
}
.btn-primary-grad:hover {
  opacity: 0.88;
  transform: translateY(-2px);
  color: #fff;
}
.btn-outline-grad {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border);
  padding: 0.65rem 1.5rem;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  transition: border-color 0.2s, background 0.2s, transform 0.2s;
}
.btn-outline-grad:hover {
  border-color: var(--accent);
  background: rgba(124,58,237,0.08);
  transform: translateY(-2px);
  color: var(--text-primary);
}

/* === PROJECTS === */
.projects-section {
  padding: 3rem 0 5rem;
  position: relative;
  z-index: 1;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 18px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}
.project-card:hover {
  transform: translateY(-7px);
  border-color: rgba(124,58,237,0.4);
  box-shadow: 0 16px 48px rgba(124,58,237,0.15);
}

.project-img-wrapper {
  position: relative;
  overflow: hidden;
}
.project-img-wrapper img {
  width: 100%;
  height: 190px;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}
.project-card:hover .project-img-wrapper img {
  transform: scale(1.07);
}
.project-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(8,8,16,0.85) 0%, transparent 55%);
  pointer-events: none;
}

.project-body {
  padding: 1.3rem 1.4rem 1.4rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.project-type {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--purple-soft);
  margin-bottom: 0.3rem;
}
.project-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  line-height: 1.3;
}
.project-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.65;
  flex: 1;
  margin-bottom: 0.65rem;
}
.project-tech {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}
.project-links {
  display: flex;
  gap: 1rem;
  margin-top: auto;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
}
.project-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
}
.project-link:hover { color: var(--purple-soft); }

/* === FEATURED PROJECT CARD === */
.project-card--featured {
  border-color: transparent;
  background: linear-gradient(var(--bg-secondary), var(--bg-secondary)) padding-box,
              var(--gradient) border-box;
  border: 2px solid transparent;
  position: relative;
}
.project-card--featured::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: 18px;
  background: var(--gradient);
  opacity: 0.18;
  z-index: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}
.project-card--featured:hover::before { opacity: 0.28; }
.project-card--featured > .row { position: relative; z-index: 1; }

.featured-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  background: var(--gradient);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
}
.featured-link {
  color: var(--purple-soft) !important;
  font-size: 0.88rem !important;
}
.featured-link:hover { color: #c4b5fd !important; }

/* === SOCIAL SECTION === */
.social-section {
  padding: 2.5rem 0;
  border-top: 1px solid var(--border);
  position: relative;
  z-index: 1;
}
.social-link {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  text-decoration: none;
  color: var(--text-secondary);
  padding: 1rem 1.5rem;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: border-color 0.2s, color 0.2s, background 0.2s, transform 0.2s;
}
.social-link:hover {
  color: var(--text-primary);
  border-color: rgba(124,58,237,0.4);
  background: rgba(124,58,237,0.06);
  transform: translateY(-2px);
}
.social-icon { font-size: 1.6rem; }
.social-name { font-weight: 700; font-size: 0.95rem; }
.social-handle { font-size: 0.78rem; color: var(--text-muted); }

/* === FOOTER === */
footer {
  width: 100%;
  padding: 1.5rem;
  text-align: center;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.85rem;
  position: relative;
  z-index: 1;
}

/* === WHATSAPP BUTTON === */
.whats {
  position: fixed;
  bottom: 20px;
  left: 20px;
  z-index: 9999;
  border-radius: 50%;
  transition: transform 0.25s;
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.4));
}
.whats:hover { transform: scale(1.1); }

/* === ABOUT PAGE === */
.about-hero {
  padding: 3.5rem 0 2rem;
  text-align: center;
  position: relative;
  z-index: 1;
}

.about-content-wrapper {
  position: relative;
  z-index: 1;
  padding-bottom: 4rem;
}

.about-nav-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1rem 0.75rem;
  position: sticky;
  top: 90px;
}
.about-nav-card .list-group-item {
  background: transparent;
  border: none;
  border-radius: 8px;
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0.6rem 0.75rem;
  margin-bottom: 2px;
  transition: color 0.2s, background 0.2s;
  text-decoration: none;
  display: block;
}
.about-nav-card .list-group-item:hover {
  color: var(--purple-soft);
  background: rgba(124,58,237,0.07);
}
.about-nav-card .list-group-item.active {
  color: var(--purple-soft);
  background: rgba(124,58,237,0.1);
}

.about-section {
  margin-bottom: 2.75rem;
  padding-bottom: 2.75rem;
  border-bottom: 1px solid var(--border);
}
.about-section:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}
.about-section > h4 {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--purple-soft);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.about-section > h4::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 0.85rem;
  font-size: 0.92rem;
}
.contact-item i {
  color: var(--purple-soft);
  font-size: 1.05rem;
  width: 20px;
  text-align: center;
}

.prof-link {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--purple-soft);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.92rem;
  padding: 0.5rem 0.85rem;
  border-radius: 8px;
  border: 1px solid rgba(124,58,237,0.2);
  background: rgba(124,58,237,0.07);
  transition: background 0.2s, border-color 0.2s, transform 0.2s;
}
.prof-link:hover {
  background: rgba(124,58,237,0.15);
  border-color: rgba(124,58,237,0.4);
  color: #c4b5fd;
  transform: translateX(3px);
}

/* === TIMELINE === */
.timeline {
  position: relative;
  padding-left: 1.25rem;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 12px;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), transparent);
}
.timeline-item {
  position: relative;
  margin-bottom: 2.25rem;
  padding-left: 1.5rem;
}
.timeline-item:last-child { margin-bottom: 0; }
.timeline-item::before {
  content: '';
  position: absolute;
  left: -1.375rem;
  top: 10px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px rgba(124,58,237,0.7);
}
.timeline-date {
  font-size: 0.78rem;
  color: var(--purple-soft);
  font-weight: 600;
  letter-spacing: 0.03em;
  margin-bottom: 0.3rem;
}
.timeline-company {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.2rem;
}
.timeline-role {
  font-size: 0.88rem;
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: 0.5rem;
}
.timeline-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.65;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.skill-tag {
  background: rgba(124,58,237,0.08);
  border: 1px solid rgba(124,58,237,0.18);
  color: var(--purple-soft);
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  font-size: 0.74rem;
  font-weight: 600;
}

/* === ANIMATIONS === */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(22px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-in-up {
  animation: fadeInUp 0.65s cubic-bezier(.22,1,.36,1) forwards;
}
.delay-1 { animation-delay: 0.1s; opacity: 0; }
.delay-2 { animation-delay: 0.2s; opacity: 0; }
.delay-3 { animation-delay: 0.3s; opacity: 0; }
.delay-4 { animation-delay: 0.45s; opacity: 0; }

/* === RESPONSIVE === */
@media (max-width: 768px) {
  .hero {
    padding: 2.5rem 0 2rem;
    text-align: center;
  }
  .hero-photo { width: 150px; height: 150px; }
  .hero-name { font-size: 2rem; }
  .hero-actions { justify-content: center; }
  .tech-tags { justify-content: center; }
  .hero-bio { margin: 0 auto; }
  .about-hero { padding: 2rem 0 1rem; }
}