:root {
  --bg: #0a0d12;
  --bg2: #111520;
  --surface: #161c28;
  --border: #1e2a3a;
  --accent: #00e5ff;
  --accent2: #0077ff;
  --text: #cfd8e3;
  --muted: #5a6a7e;
  --white: #f0f4f8;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: "Syne", sans-serif;
  overflow-x: hidden;
}

/* ── NOISE OVERLAY ── */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
  opacity: 0.5;
}

/* ── NAVBAR ── */
.navbar {
  background: rgba(10, 13, 18, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  padding: 1rem 0;
  transition: background 0.3s;
}
.navbar-brand {
  font-family: "Space Mono", monospace;
  font-weight: 700;
  color: var(--accent) !important;
  letter-spacing: -0.5px;
  font-size: 1.1rem;
}
.navbar-brand span {
  color: var(--white);
}
.nav-link {
  color: var(--muted) !important;
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0.4rem 1rem !important;
  transition: color 0.2s;
  position: relative;
}
.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 1rem;
  right: 1rem;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transition: transform 0.25s;
}
.nav-link:hover {
  color: var(--white) !important;
}
.nav-link:hover::after {
  transform: scaleX(1);
}
.navbar-toggler {
  border-color: var(--border);
}
.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='%2300e5ff' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
}

/* ── HERO ── */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 7rem 0 4rem;
}
.hero-grid-bg {
  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: 0.35;
}
.hero-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(0, 229, 255, 0.12) 0%,
    transparent 70%
  );
  top: -100px;
  right: -100px;
  pointer-events: none;
}
.hero-glow-2 {
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(0, 119, 255, 0.1) 0%,
    transparent 70%
  );
  bottom: 0;
  left: -80px;
  pointer-events: none;
}
.hero-tag {
  font-family: "Space Mono", monospace;
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  border: 1px solid rgba(0, 229, 255, 0.3);
  display: inline-block;
  padding: 0.3rem 0.8rem;
  border-radius: 2px;
  margin-bottom: 1.5rem;
  animation: fadeUp 0.6s ease both;
}
.hero-name {
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  font-weight: 800;
  line-height: 1;
  color: var(--white);
  letter-spacing: -0.03em;
  animation: fadeUp 0.6s 0.1s ease both;
}
.hero-name .accent {
  color: var(--accent);
}
.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--muted);
  max-width: 520px;
  margin-top: 1.25rem;
  line-height: 1.7;
  animation: fadeUp 0.6s 0.2s ease both;
}
.hero-actions {
  margin-top: 2.5rem;
  animation: fadeUp 0.6s 0.3s ease both;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
.btn-primary-custom {
  background: var(--accent);
  color: #000;
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: none;
  padding: 0.8rem 2rem;
  border-radius: 3px;
  transition:
    transform 0.2s,
    box-shadow 0.2s;
  text-decoration: none;
  display: inline-block;
}
.btn-primary-custom:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 229, 255, 0.3);
  color: #000;
}
.btn-outline-custom {
  background: transparent;
  color: var(--white);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 1px solid var(--border);
  padding: 0.8rem 2rem;
  border-radius: 3px;
  transition:
    border-color 0.2s,
    color 0.2s;
  text-decoration: none;
  display: inline-block;
}
.btn-outline-custom:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.hero-stats {
  margin-top: 3.5rem;
  display: flex;
  gap: 2.5rem;
  flex-wrap: wrap;
  animation: fadeUp 0.6s 0.4s ease both;
}
.stat-item {
  text-align: left;
}
.stat-number {
  font-family: "Space Mono", monospace;
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
}
.stat-label {
  font-size: 0.8rem;
  color: var(--muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* Terminal card */
.terminal-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  animation: fadeUp 0.7s 0.2s ease both;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}
.terminal-bar {
  background: var(--bg2);
  padding: 0.6rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border);
}
.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}
.dot-r {
  background: #ff5f57;
}
.dot-y {
  background: #ffbd2e;
}
.dot-g {
  background: #28c840;
}
.terminal-title {
  font-family: "Space Mono", monospace;
  font-size: 0.7rem;
  color: var(--muted);
  margin-left: 0.5rem;
}
.terminal-body {
  padding: 1.5rem;
  font-family: "Space Mono", monospace;
  font-size: 0.8rem;
  line-height: 2;
}
.t-prompt {
  color: var(--accent);
}
.t-cmd {
  color: var(--white);
}
.t-out {
  color: var(--muted);
}
.t-ok {
  color: #28c840;
}
.t-cursor {
  display: inline-block;
  width: 8px;
  height: 14px;
  background: var(--accent);
  vertical-align: middle;
  animation: blink 1s step-end infinite;
}

/* ── SECTIONS COMMON ── */
section {
  position: relative;
  z-index: 1;
}
.section-label {
  font-family: "Space Mono", monospace;
  font-size: 0.7rem;
  color: var(--accent);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}
.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.02em;
  line-height: 1.1;
}
.section-divider {
  width: 48px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  border-radius: 2px;
  margin-top: 1rem;
}

/* ── O MNIE ── */
#o-mnie {
  padding: 6rem 0;
  background: var(--bg2);
  border-top: 1px solid var(--border);
}
.skill-chip {
  display: inline-block;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: "Space Mono", monospace;
  font-size: 0.72rem;
  padding: 0.3rem 0.75rem;
  border-radius: 3px;
  margin: 0.25rem;
  transition:
    border-color 0.2s,
    color 0.2s;
}
.skill-chip:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.skill-chip i {
  color: var(--accent2);
  margin-right: 0.3rem;
}

.about-img-wrap {
  position: relative;
}
.about-img-wrap::before {
  content: "";
  position: absolute;
  inset: -10px;
  border: 2px solid var(--accent);
  border-radius: 6px;
  opacity: 0.25;
  transform: rotate(2deg);
}
.about-avatar {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 4px;
  filter: grayscale(30%);
}
.avatar-placeholder {
  width: 100%;
  aspect-ratio: 1;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 5rem;
  color: var(--muted);
}

/* ── USŁUGI ── */
#uslugi {
  padding: 6rem 0;
}
.service-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 2rem;
  height: 100%;
  transition:
    transform 0.25s,
    border-color 0.25s,
    box-shadow 0.25s;
  position: relative;
  overflow: hidden;
}
.service-card::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  transform: scaleX(0);
  transition: transform 0.3s;
}
.service-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 229, 255, 0.3);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}
.service-card:hover::after {
  transform: scaleX(1);
}
.service-icon {
  font-size: 2rem;
  color: var(--accent);
  margin-bottom: 1.25rem;
}
.service-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.75rem;
}
.service-desc {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.7;
}

/* ── BLOG ── */
#blog {
  padding: 6rem 0;
  background: var(--bg2);
  border-top: 1px solid var(--border);
}
.blog-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  height: 100%;
  transition:
    transform 0.25s,
    box-shadow 0.25s;
}
.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}
.blog-thumb {
  height: 180px;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  border-bottom: 1px solid var(--border);
}
.blog-body {
  padding: 1.5rem;
}
.blog-tag {
  font-family: "Space Mono", monospace;
  font-size: 0.65rem;
  color: var(--accent);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}
.blog-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  margin: 0.5rem 0 0.75rem;
  line-height: 1.4;
}
.blog-meta {
  font-size: 0.78rem;
  color: var(--muted);
}
.blog-read {
  font-size: 0.8rem;
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  margin-top: 1rem;
  transition: gap 0.2s;
}
.blog-read:hover {
  gap: 0.6rem;
  color: var(--accent);
}

/* ── KONTAKT ── */
#kontakt {
  padding: 6rem 0;
}
.contact-form-wrap {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 2.5rem;
}
.form-label {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.4rem;
}
.form-control,
.form-select {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--white);
  border-radius: 4px;
  padding: 0.7rem 1rem;
  font-family: "Syne", sans-serif;
  font-size: 0.9rem;
  transition:
    border-color 0.2s,
    box-shadow 0.2s;
}
.form-control:focus,
.form-select:focus {
  background: var(--bg);
  border-color: var(--accent);
  color: var(--white);
  box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.1);
}
textarea.form-control {
  resize: vertical;
  min-height: 130px;
}
.form-control::placeholder {
  color: var(--muted);
}
.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.contact-info-icon {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 1.1rem;
}
.contact-info-label {
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.contact-info-val {
  font-size: 0.95rem;
  color: var(--white);
  font-weight: 600;
  margin-top: 0.1rem;
}

/* ── FOOTER ── */
footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 2.5rem 0;
}
.footer-brand {
  font-family: "Space Mono", monospace;
  font-size: 1rem;
  color: var(--accent);
  font-weight: 700;
}
.footer-copy {
  font-size: 0.82rem;
  color: var(--muted);
  margin-top: 0.25rem;
}
.footer-social a {
  color: var(--muted);
  font-size: 1.2rem;
  margin-left: 1rem;
  transition: color 0.2s;
}
.footer-social a:hover {
  color: var(--accent);
}

/* ── ANIMATIONS ── */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes blink {
  50% {
    opacity: 0;
  }
}

/* ── SCROLLBAR ── */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg);
}
::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}