/* =========================================
   RESET & BASE
   ========================================= */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* Colors */
  --bg:         #030712;
  --bg-soft:    #0b0f19;
  --bg-card:    rgba(17, 24, 39, 0.65);
  --border:     rgba(255, 255, 255, 0.08);
  --border-soft:rgba(255, 255, 255, 0.04);
  --text:       #f9fafb;
  --text-muted: #9ca3af;
  --text-faint: #4b5563;
  --accent:     #10b981;
  --accent-dim: rgba(16, 185, 129, 0.15);
  --accent-glow:rgba(16, 185, 129, 0.4);

  /* Typography */
  --font: 'Inter', system-ui, -apple-system, sans-serif;
  --text-xs:   0.75rem;
  --text-sm:   0.875rem;
  --text-base: 1rem;
  --text-lg:   1.125rem;
  --text-xl:   1.25rem;
  --text-2xl:  1.5rem;
  --text-3xl:  2rem;
  --text-4xl:  2.75rem;
  --text-5xl:  3.75rem;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-24: 6rem;

  /* Misc */
  --radius: 12px;
  --radius-sm: 8px;
  --radius-full: 9999px;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --nav-h: 64px;
}

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

body {
  font-family: var(--font);
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

img { display: block; max-width: 100%; }

/* =========================================
   LAYOUT
   ========================================= */
.container {
  width: 100%;
  max-width: 1100px;
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.section {
  padding-block: var(--space-24);
}

.section-title {
  font-size: var(--text-3xl);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-12);
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  display: block;
  width: 40px;
  height: 3px;
  background: var(--accent);
  border-radius: var(--radius-full);
  margin-top: var(--space-3);
}

/* =========================================
   SCROLL REVEAL
   ========================================= */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.reveal-right {
  transform: translateX(30px);
}

.reveal.visible {
  opacity: 1;
  transform: translate(0);
}

/* =========================================
   NAVBAR
   ========================================= */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-h);
  background: transparent;
  transition: background var(--transition), border-color var(--transition), backdrop-filter var(--transition);
}

.navbar.scrolled {
  background: rgba(3, 7, 18, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-h);
}

.logo {
  font-size: var(--text-xl);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text);
}

.logo span {
  background: linear-gradient(135deg, #10b981 0%, #3b82f6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: transparent;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-links a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width var(--transition);
}

.nav-links a:hover {
  color: var(--text);
}

.nav-links a:hover::after {
  width: 100%;
}

/* Burger */
.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
  z-index: 110;
}

.burger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: var(--radius-full);
  transition: transform var(--transition), opacity var(--transition);
  transform-origin: center;
}

.burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; }
.burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =========================================
   HERO
   ========================================= */
.hero {
  min-height: 100svh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: var(--nav-h);
}

/* subtle grid background */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.25;
  pointer-events: none;
}

/* radial glow */
.hero::after {
  content: '';
  position: absolute;
  top: 20%;
  left: 40%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-12);
  position: relative;
  z-index: 1;
  width: 100%;
}

.hero-text { flex: 1; }

.hero-greeting {
  font-size: var(--text-base);
  color: var(--text-muted);
  margin-bottom: var(--space-4);
  font-weight: 400;
}

.hero-name {
  font-size: clamp(2.5rem, 6vw, var(--text-5xl));
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.1;
  margin-bottom: var(--space-4);
}

.hero-name span {
  background: linear-gradient(135deg, #10b981 0%, #3b82f6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: transparent;
}

.hero-role {
  font-size: var(--text-lg);
  color: var(--text-muted);
  margin-bottom: var(--space-6);
  font-weight: 400;
}

.hero-desc {
  font-size: var(--text-base);
  color: var(--text-muted);
  max-width: 480px;
  margin-bottom: var(--space-8);
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

/* ── Avatar ── */
.hero-avatar {
  flex-shrink: 0;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* wrapper controls overall size */
.avatar-wrapper {
  position: relative;
  width: 280px;
  height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* spinning conic-gradient border */
.avatar-spin-border {
  position: absolute;
  inset: -5px;
  border-radius: 50%;
  background: conic-gradient(
    from 0deg,
    transparent 0deg 60deg,
    var(--accent) 90deg 180deg,
    transparent 210deg 360deg
  );
  animation: avatar-spin 3.5s linear infinite;
  z-index: 0;
}

@keyframes avatar-spin {
  to { transform: rotate(360deg); }
}

/* mask so only a thin arc shows */
.avatar-spin-border::after {
  content: '';
  position: absolute;
  inset: 5px;
  border-radius: 50%;
  background: var(--bg);
}

/* outer breathing ring */
.avatar-pulse-ring {
  position: absolute;
  inset: -18px;
  border-radius: 50%;
  border: 1px solid rgba(110,231,183,0.15);
  animation: avatar-pulse 3s ease-in-out infinite;
  z-index: 0;
}

@keyframes avatar-pulse {
  0%, 100% { transform: scale(1);    opacity: 0.4; }
  50%       { transform: scale(1.06); opacity: 1;   }
}

/* second subtle ring */
.avatar-pulse-ring::after {
  content: '';
  position: absolute;
  inset: -14px;
  border-radius: 50%;
  border: 1px solid rgba(110,231,183,0.07);
  animation: avatar-pulse 3s ease-in-out infinite 0.5s;
}

/* photo container */
.avatar-ring {
  width: 250px;
  height: 250px;
  border-radius: 50%;
  border: 2px solid rgba(110,231,183,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 2;
  background: var(--bg-card);
  box-shadow:
    0 0 0 4px var(--bg),
    0 0 50px rgba(110,231,183,0.25),
    0 0 100px rgba(110,231,183,0.08),
    inset 0 0 30px rgba(110,231,183,0.05);
  overflow: hidden;
}

.avatar-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  border-radius: 50%;
  display: block;
  transition: transform 0.5s cubic-bezier(0.4,0,0.2,1);
  filter: brightness(1.02) contrast(1.02);
}

.avatar-ring:hover .avatar-photo {
  transform: scale(1.05);
}

/* floating decorative dots */
.avatar-dot {
  position: absolute;
  border-radius: 50%;
  background: var(--accent);
  z-index: 4;
  animation: avatar-float 4s ease-in-out infinite;
}

.avatar-dot--1 {
  width: 10px; height: 10px;
  top: 4%; right: 4%;
  animation-delay: 0s;
  opacity: 0.7;
}

.avatar-dot--2 {
  width: 7px; height: 7px;
  top: 38%; left: -2%;
  animation-delay: 1.2s;
  opacity: 0.35;
}

.avatar-dot--3 {
  width: 8px; height: 8px;
  bottom: 10%; left: 4%;
  animation-delay: 2.4s;
  opacity: 0.5;
}

@keyframes avatar-float {
  0%, 100% { transform: translateY(0)    scale(1);   }
  50%       { transform: translateY(-9px) scale(1.2); }
}

/* "Open to Work" badge */
.avatar-badge {
  position: absolute;
  bottom: 6px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 5;
  background: rgba(10,10,10,0.75);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(110,231,183,0.25);
  border-radius: var(--radius-full);
  padding: 0.28rem 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--accent);
  white-space: nowrap;
  box-shadow: 0 4px 16px rgba(0,0,0,0.5);
}

.avatar-badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
  animation: badge-blink 1.8s ease-in-out infinite;
  box-shadow: 0 0 6px var(--accent);
}

@keyframes badge-blink {
  0%, 100% { opacity: 1;   }
  50%       { opacity: 0.3; }
}

/* blob (behind everything) */
.blob {
  position: absolute;
  width: 320px;
  height: 320px;
  background: var(--accent-dim);
  border-radius: 60% 40% 55% 45% / 50% 60% 40% 50%;
  animation: blob-morph 8s ease-in-out infinite;
  filter: blur(3px);
  z-index: -1;
}

@keyframes blob-morph {
  0%, 100% { border-radius: 60% 40% 55% 45% / 50% 60% 40% 50%; }
  33%       { border-radius: 45% 55% 40% 60% / 60% 45% 55% 40%; }
  66%       { border-radius: 50% 50% 60% 40% / 40% 55% 45% 60%; }
}

/* Scroll hint */
.scroll-hint {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  color: var(--text-faint);
  animation: bounce 2s ease-in-out infinite;
  z-index: 1;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(8px); }
}

/* =========================================
   BUTTONS
   ========================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.5rem;
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: all var(--transition);
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: #ffffff;
  border: none;
  box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(16, 185, 129, 0.5);
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border-color: var(--border-soft);
}

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

.btn-full { width: 100%; }

/* =========================================
   ABOUT
   ========================================= */
.about {
  background: var(--bg-soft);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
}

.about-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.about-card p {
  color: var(--text-muted);
  line-height: 1.85;
}

.about-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.badge {
  padding: 0.35rem 0.9rem;
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  color: var(--text-muted);
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.stat-item {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-6);
  text-align: center;
  transition: border-color var(--transition), transform var(--transition);
}

.stat-item:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}

.stat-number {
  display: block;
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: var(--space-2);
}

.stat-label {
  font-size: var(--text-sm);
  color: var(--text-muted);
}

/* =========================================
   SKILLS
   ========================================= */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.skill-category {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-8);
  transition: border-color var(--transition);
}

.skill-category:hover {
  border-color: var(--accent);
}

.skill-category h3 {
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: var(--space-6);
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.skill-tag {
  padding: 0.3rem 0.75rem;
  background: var(--bg-soft);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  color: var(--text-muted);
  font-weight: 500;
  transition: all var(--transition);
}

.skill-tag:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}

/* =========================================
   PROJECTS
   ========================================= */
.projects {
  background: var(--bg-soft);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

.project-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-8);
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.project-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(110,231,183,0.08);
}

.project-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.project-icon {
  font-size: 1.75rem;
  line-height: 1;
}

.project-links {
  display: flex;
  gap: var(--space-3);
}

.project-links a {
  color: var(--text-faint);
  transition: color var(--transition);
  display: flex;
  align-items: center;
}

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

.project-title {
  font-size: var(--text-xl);
  font-weight: 600;
  letter-spacing: -0.02em;
}

.project-desc {
  font-size: var(--text-sm);
  color: var(--text-muted);
  line-height: 1.8;
  flex: 1;
}

.project-stack {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: auto;
}

.project-stack span {
  font-size: var(--text-xs);
  color: var(--accent);
  font-weight: 500;
  font-family: 'Courier New', monospace;
}

.project-stack span:not(:last-child)::after {
  content: ' ·';
  color: var(--text-faint);
}

/* =========================================
   CONTACT
   ========================================= */
.contact-sub {
  color: var(--text-muted);
  margin-bottom: var(--space-12);
  max-width: 500px;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: var(--space-12);
  align-items: start;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.contact-link {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  color: var(--text-muted);
  font-size: var(--text-sm);
  transition: color var(--transition);
}

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

.contact-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  transition: border-color var(--transition);
}

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

/* Form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-group label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-muted);
}

.form-group input,
.form-group textarea {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--font);
  font-size: var(--text-sm);
  padding: 0.75rem 1rem;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  resize: vertical;
}

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

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

.form-note {
  font-size: var(--text-sm);
  color: var(--accent);
  min-height: 1.5rem;
  text-align: center;
}

/* =========================================
   FOOTER
   ========================================= */
.footer {
  background: var(--bg-soft);
  border-top: 1px solid var(--border);
  padding-block: var(--space-8);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer p {
  font-size: var(--text-sm);
  color: var(--text-faint);
}

.back-top {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: var(--text-lg);
  transition: all var(--transition);
}

.back-top:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

/* =========================================
   RESPONSIVE
   ========================================= */

/* Tablet */
@media (max-width: 900px) {
  .skills-grid {
    grid-template-columns: 1fr 1fr;
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }
}

/* Mobile */
@media (max-width: 680px) {
  :root {
    --space-24: 4rem;
    --space-12: 2rem;
  }

  .burger { display: flex; }

  .nav-links {
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: rgba(10, 10, 10, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding: var(--space-6) var(--space-4) var(--space-8);
    gap: 0;
    transform: translateY(-110%);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1),
                opacity   0.35s ease;
    opacity: 0;
    z-index: 105;
    pointer-events: none;
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .nav-links a {
    font-size: var(--text-lg);
    width: 100%;
    text-align: center;
    padding: var(--space-4) 0;
    border-bottom: 1px solid var(--border);
    color: var(--text-muted);
  }

  .nav-links a:last-child {
    border-bottom: none;
  }

  .nav-links a::after {
    display: none;
  }

  .hero-inner {
    flex-direction: column-reverse;
    text-align: center;
    padding-top: var(--space-8);
  }

  .hero-desc { margin-inline: auto; }

  .hero-actions { justify-content: center; }

  .hero-avatar .avatar-wrapper {
    width: 210px;
    height: 210px;
  }

  .hero-avatar .avatar-ring {
    width: 190px;
    height: 190px;
  }

  .hero-avatar .blob {
    width: 240px;
    height: 240px;
  }

  .hero-avatar .avatar-initials {
    font-size: 2.2rem;
  }

  .about-grid {
    grid-template-columns: 1fr;
  }

  .about-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .skills-grid {
    grid-template-columns: 1fr;
  }

  .section-title {
    font-size: var(--text-2xl);
  }

  .footer-inner {
    flex-direction: column;
    gap: var(--space-4);
    text-align: center;
  }
}

/* Very small screens */
@media (max-width: 400px) {
  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    width: 100%;
  }
}

/* =========================================
   SELECTION
   ========================================= */
::selection {
  background: var(--accent);
  color: #0a0a0a;
}

/* =========================================
   SCROLLBAR
   ========================================= */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb {
  background: var(--border-soft);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover { background: var(--accent); }