:root {
  --bg: #0f1320;
  --surface: #171d2e;
  --surface-soft: #1f2740;
  --ink: #f5f7ff;
  --muted: #b8c2d9;
  --accent: #ffb347;
  --accent-dark: #ff8f3d;
  --accent-cool: #5ad6d2;
  --shadow: 0 22px 60px rgba(4, 8, 24, 0.45);
  --stroke: rgba(255, 255, 255, 0.08);
  --radius-lg: 20px;
  --nav-height: 72px;
}

* {
  box-sizing: border-box;
}

body {
  font-family: "Rubik", sans-serif;
  color: var(--ink);
  background: var(--bg);
  min-height: 100vh;
  padding-top: var(--nav-height);
}

h1,
h2,
h3,
.navbar-brand {
  font-family: "Source Sans 3", sans-serif;
}

.display-5 {
  font-size: clamp(2.6rem, 1.8rem + 2.6vw, 3.6rem);
  line-height: 1.05;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  color: var(--accent-cool) !important;
}

.bg-accent-layer {
  position: fixed;
  inset: 0;
  background:
    radial-gradient(
      circle at 10% 10%,
      rgba(255, 179, 71, 0.18),
      transparent 40%
    ),
    radial-gradient(circle at 80% 5%, rgba(90, 214, 210, 0.2), transparent 45%),
    radial-gradient(
      circle at 80% 80%,
      rgba(255, 143, 61, 0.2),
      transparent 50%
    ),
    linear-gradient(145deg, rgba(13, 18, 34, 0.95), rgba(18, 25, 46, 0.95));
  z-index: -2;
}

.glass-nav {
  backdrop-filter: blur(18px);
  background: rgba(12, 16, 28, 0.75);
  border-bottom: 1px solid var(--stroke);
  padding: 0.75rem 0;
}

.navbar-brand {
  letter-spacing: 0.6px;
  font-weight: 700;
  color: var(--ink);
}

.hero-section {
  padding: 5.5rem 0 4.5rem;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.28em;
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 700;
}

.lead {
  font-size: clamp(1.05rem, 0.95rem + 0.6vw, 1.3rem);
}

.profile-card {
  padding: 2rem;
  border-radius: var(--radius-lg);
  background: linear-gradient(
    150deg,
    rgba(31, 39, 64, 0.92),
    rgba(23, 29, 46, 0.95)
  );
  box-shadow: var(--shadow);
  border: 1px solid var(--stroke);
  position: relative;
  overflow: hidden;
}

.profile-card a {
  word-break: break-all;
}

.profile-avatar {
  width: 84px;
  height: 84px;
  border-radius: 50%;
  border: 3px solid rgba(255, 255, 255, 0.6);
  box-shadow: 0 10px 20px rgba(15, 15, 15, 0.15);
  object-fit: cover;
}

.tracking-small {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--muted);
}

.contact-list li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.4rem 0;
  color: var(--muted);
}

.contact-list i {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(90, 214, 210, 0.18);
  color: var(--accent-cool);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.contact-list span,
.contact-list a {
  color: var(--ink);
  font-weight: 600;
}

.divider {
  height: 1px;
  background: var(--stroke);
  margin: 1.5rem 0;
}

.section {
  padding: 3rem 0;
}

/* Ensure side margins on small devices (<=575px). */
@media (max-width: 575.98px) {
  .container,
  .container-sm {
    padding-left: 1rem;
    padding-right: 1rem;
  }
}

.section-header {
  margin-bottom: 2rem;
}

.section-header h2 {
  margin-bottom: 0.3rem;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  position: relative;
}

.section-header p {
  color: var(--muted);
  margin: 0;
}

.skill-card,
.competency-card {
  background: linear-gradient(
    150deg,
    rgba(32, 39, 60, 0.95),
    rgba(22, 28, 44, 0.95)
  );
  padding: 1.6rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  height: 100%;
  border: 1px solid var(--stroke);
}

.section-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: rgba(255, 179, 71, 0.2);
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.skill-card h3,
.competency-card h3 {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.skill-card h3 i,
.competency-card h3 i {
  color: var(--accent-dark);
  font-size: 1.1rem;
}

.skill-list {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 0.65rem;
}

.skill-list li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.65rem;
  border-radius: 12px;
  border: 1px solid var(--stroke);
  background: rgba(12, 16, 28, 0.55);
  color: var(--ink);
  font-weight: 600;
  font-size: 0.93rem;
}

.skill-chip {
  width: 30px;
  height: 30px;
  border-radius: 9px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.62rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #0f1320;
  background: linear-gradient(135deg, #f4b35f, #ff8f3d);
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.25);
  flex-shrink: 0;
}

.skill-chip::before {
  content: attr(data-label);
}

.skill-chip.php {
  background: linear-gradient(135deg, #8892bf, #4f5b93);
  color: #fff;
}

.skill-chip.js {
  background: linear-gradient(135deg, #f7df1e, #d9c018);
  color: #1b1b1b;
}

.skill-chip.solidity {
  background: linear-gradient(135deg, #4f4f4f, #1f1f1f);
  color: #fff;
}

.skill-chip.c,
.skill-chip.cpp {
  background: linear-gradient(135deg, #3a7bd5, #1f4e99);
  color: #fff;
}

.skill-chip.html {
  background: linear-gradient(135deg, #f06529, #e44d26);
  color: #fff;
}

.skill-chip.css {
  background: linear-gradient(135deg, #264de4, #1b3faa);
  color: #fff;
}

.skill-chip.sql,
.skill-chip.mysql {
  background: linear-gradient(135deg, #00618a, #003d57);
  color: #fff;
}

.skill-chip.laravel {
  background: linear-gradient(135deg, #ff2d20, #c41c12);
  color: #fff;
}

.skill-chip.react {
  background: linear-gradient(135deg, #61dafb, #2aa7c9);
  color: #0f1320;
}

.skill-chip.next {
  background: linear-gradient(135deg, #111111, #444444);
  color: #fff;
}

.skill-chip.ether,
.skill-chip.web3 {
  background: linear-gradient(135deg, #6e5ed2, #3d2ea8);
  color: #fff;
}

.skill-chip.jquery {
  background: linear-gradient(135deg, #0868ac, #044b7d);
  color: #fff;
}

.skill-chip.ajax {
  background: linear-gradient(135deg, #ffb347, #f37b37);
  color: #1b1b1b;
}

.skill-chip.bootstrap {
  background: linear-gradient(135deg, #7952b3, #563d7c);
  color: #fff;
}

.skill-chip.orm,
.skill-chip.db,
.skill-chip.optimize {
  background: linear-gradient(135deg, #3a7bd5, #0d3b66);
  color: #fff;
}

.skill-chip.api,
.skill-chip.jwt,
.skill-chip.oauth {
  background: linear-gradient(135deg, #5ad6d2, #2a9fa0);
  color: #0f1320;
}

.skill-chip.stripe {
  background: linear-gradient(135deg, #635bff, #3a33c9);
  color: #fff;
}

.skill-chip.paypal {
  background: linear-gradient(135deg, #003087, #001c64);
  color: #fff;
}

.skill-chip.nowpay,
.skill-chip.coinpay,
.skill-chip.coinbase,
.skill-chip.perfect {
  background: linear-gradient(135deg, #0c7b93, #064a57);
  color: #fff;
}

.skill-chip.git {
  background: linear-gradient(135deg, #f05032, #c23b24);
  color: #fff;
}

.skill-chip.github {
  background: linear-gradient(135deg, #24292e, #0f1216);
  color: #fff;
}

.skill-chip.vscode {
  background: linear-gradient(135deg, #007acc, #005c99);
  color: #fff;
}

.skill-chip.sublime,
.skill-chip.atom {
  background: linear-gradient(135deg, #ff9800, #c77700);
  color: #1b1b1b;
}

.skill-chip.cpanel,
.skill-chip.host {
  background: linear-gradient(135deg, #ff6b35, #c94a1a);
  color: #fff;
}

.skill-chip.agile,
.skill-chip.responsive,
.skill-chip.cross,
.skill-chip.server,
.skill-chip.vcs {
  background: linear-gradient(135deg, #9b5de5, #6a2fbe);
  color: #fff;
}

.timeline {
  border-left: 2px solid rgba(90, 214, 210, 0.35);
  padding-left: 2rem;
}

.timeline-item {
  position: relative;
  padding-bottom: 2.5rem;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -2.55rem;
  top: 0.4rem;
  width: 14px;
  height: 14px;
  background: var(--accent-cool);
  border-radius: 50%;
  box-shadow: 0 0 0 6px rgba(90, 214, 210, 0.18);
}

.timeline-meta {
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.timeline ul {
  padding-left: 1.1rem;
  margin: 0;
}

.timeline li {
  margin-bottom: 0.6rem;
  color: var(--muted);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  border-color: transparent;
  color: #1a140b;
  font-weight: 700;
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--accent-dark), var(--accent));
  border-color: transparent;
  color: #1a140b;
}

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

.btn-outline-dark:hover {
  background: var(--accent-cool);
  color: #000 !important;
}

.navbar .nav-link {
  padding: 0.5rem 0.9rem;
  color: var(--muted);
  font-weight: 600;
  position: relative;
}

.navbar-toggler {
  border-color: rgba(255, 255, 255, 0.2);
}

.navbar-toggler-icon {
  filter: invert(1);
}

.footer {
  padding: 2rem 0 3rem;
  color: var(--muted);
  text-align: center;
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition:
    opacity 0.7s ease,
    transform 0.7s ease;
}

.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

.card {
  background: var(--surface);
  border: 1px solid var(--stroke);
  color: var(--ink);
  box-shadow: var(--shadow);
}

.cert-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.cert-badge {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 179, 71, 0.2);
  color: var(--accent);
  border: 1px solid var(--stroke);
  flex-shrink: 0;
}

.competency-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.competency-badge {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(90, 214, 210, 0.18);
  color: var(--accent-cool);
  border: 1px solid var(--stroke);
  flex-shrink: 0;
}

.competency-list {
  list-style: none;
  padding: 0;
  margin: 0.9rem 0 0;
  display: grid;
  gap: 0.55rem;
}

.competency-list li {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--muted);
  font-weight: 600;
  font-size: 0.95rem;
}

.competency-list i {
  color: var(--accent-cool);
  font-size: 0.95rem;
}

.card.shadow-sm {
  box-shadow: var(--shadow);
}

.text-muted,
.text-secondary {
  color: var(--muted) !important;
}

.navbar .nav-link:hover,
.navbar .nav-link:focus {
  color: var(--ink);
}

.navbar .nav-link::after {
  content: "";
  position: absolute;
  left: 0.9rem;
  right: 0.9rem;
  bottom: 0.2rem;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0;
  transform: scaleX(0.5);
  transition:
    opacity 0.2s ease,
    transform 0.2s ease;
}

.navbar .nav-link:hover::after,
.navbar .nav-link:focus::after {
  opacity: 1;
  transform: scaleX(1);
}

.profile-card::before {
  content: "";
  position: absolute;
  inset: -40% 40% auto -40%;
  height: 140px;
  background: radial-gradient(
    circle,
    rgba(255, 179, 71, 0.35),
    transparent 65%
  );
  opacity: 0.6;
  pointer-events: none;
}

@media (max-width: 991px) {
  :root {
    --nav-height: 64px;
  }

  .glass-nav .navbar-collapse {
    margin-top: 0.75rem;
    background: rgba(15, 20, 35, 0.95);
    border-radius: 16px;
    padding: 0.75rem 1rem;
    box-shadow: var(--shadow);
  }

  .hero-section {
    padding-top: 4rem;
  }

  .timeline {
    padding-left: 1.2rem;
  }

  .timeline-item::before {
    left: -1.55rem;
  }
}

@media (max-width: 575px) {
  :root {
    --nav-height: 60px;
  }

  .hero-section {
    padding-top: 3.5rem;
  }

  .profile-card {
    padding: 1.5rem;
  }

  .btn-lg {
    padding: 0.6rem 1.2rem;
    font-size: 1rem;
  }

  .section {
    padding: 2.5rem 1 rem !important;
  }
}

.fw-600 {
  font-weight: 600;
}