/* ============================================================
   michalg — portfolio
   Dark / minimalistyczny. Czysty CSS, zero zależności.
   ============================================================ */

/* ---------- Design tokens ---------- */
:root {
  /* Kolory */
  --bg:           #0b0b0d;
  --surface:      #131316;
  --surface-2:    #1a1a1f;
  --text:         #f1f1f3;
  --muted:        #7c7c85;
  --muted-2:      #56565d;
  --accent:       #ff5e3a;
  --accent-soft:  rgba(255, 94, 58, 0.12);
  --border:       rgba(255, 255, 255, 0.07);
  --border-strong:rgba(255, 255, 255, 0.14);

  /* Typografia */
  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body:    "Inter", system-ui, -apple-system, sans-serif;

  /* Geometria */
  --radius:    14px;
  --radius-sm: 10px;
  --maxw:      1160px;
  --pad:       clamp(1.25rem, 4vw, 2.5rem);

  /* Ruch */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dur:  0.4s;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 1rem;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* iOS: przewijanie z pędem (momentum) + safe-area dla notch/Dynamic Island */
body { -webkit-overflow-scrolling: touch; }
.safe-top    { padding-top:    env(safe-area-inset-top,    0); }
.safe-bottom { padding-bottom: env(safe-area-inset-bottom, 0); }

/* Subtelna tekstura tła */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(60rem 60rem at 80% -10%, rgba(255, 94, 58, 0.06), transparent 60%),
    radial-gradient(50rem 50rem at -10% 20%, rgba(120, 80, 255, 0.04), transparent 55%);
  pointer-events: none;
  z-index: 0;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--dur) var(--ease); }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
ul { list-style: none; }

/* ---------- Layout helpers ---------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--pad);
  position: relative;
  z-index: 1;
}

.section { padding-block: clamp(4rem, 10vw, 8rem); }

.eyebrow {
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1.1rem;
}
.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--accent);
}

.section-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2rem, 1.4rem + 2.6vw, 3.4rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
}

.section-lead {
  color: var(--muted);
  max-width: 56ch;
  font-size: 1.05rem;
}

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: background var(--dur) var(--ease),
              border-color var(--dur) var(--ease),
              backdrop-filter var(--dur) var(--ease);
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: rgba(11, 11, 13, 0.72);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  padding-top: env(safe-area-inset-top, 0);
  height: calc(64px + env(safe-area-inset-top, 0));
}
.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.3rem;
  letter-spacing: -0.02em;
}
.logo .dot { color: var(--accent); }

/* MOBILE-FIRST: nav-links to rozwijana szuflada; inline dopiero od 861px */
.nav-links {
  display: flex;
  position: fixed;
  top: calc(64px + env(safe-area-inset-top, 0));
  left: 0; right: 0;
  flex-direction: column;
  align-items: stretch;
  gap: 0;
  background: rgba(11, 11, 13, 0.97);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border-bottom: 1px solid var(--border);
  padding: 0.5rem var(--pad) calc(1.5rem + env(safe-area-inset-bottom, 0));
  transform: translateY(-130%);
  transition: transform var(--dur) var(--ease);
  z-index: 99;
}
body.menu-open .nav-links { transform: none; }
.nav-links a {
  font-size: 1.08rem;
  color: var(--muted);
  padding: 1.05rem 0;
  border-bottom: 1px solid var(--border);
  min-height: 44px; /* cel dotyku iOS */
  display: flex;
  align-items: center;
}

/* Przełącznik języków */
.lang-switch {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.85rem;
  font-family: var(--font-display);
  letter-spacing: 0.04em;
}
.lang-switch a {
  padding: 0.3rem 0.55rem;
  border-radius: 6px;
  color: var(--muted-2);
  transition: all var(--dur) var(--ease);
}
.lang-switch a.is-active {
  color: var(--text);
  background: var(--surface-2);
}
.lang-switch a:hover { color: var(--text); }
.lang-switch .sep { color: var(--muted-2); }
/* W mobilnej szufladzie lang-switch potrzebuje odstępu */
.nav-links .lang-switch { margin-top: 1.2rem; padding-top: 1.2rem; border-top: 1px solid var(--border); }

/* Hamburger — widoczny domyślnie (mobile-first); ukryty od 861px */
.nav-toggle {
  display: flex;
  width: 44px; height: 44px; /* cel dotyku 44px (wytyczne Apple) */
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  display: block;
  width: 22px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}
.nav-toggle span::before { transform: translateY(-7px); }
.nav-toggle span::after  { transform: translateY(7px); position: relative; top: -2px; }
body.menu-open .nav-toggle span { background: transparent; }
body.menu-open .nav-toggle span::before { transform: rotate(45deg); }
body.menu-open .nav-toggle span::after  { transform: rotate(-45deg); top: 0; }

/* ---------- Hero ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: 72px;
}
.hero-inner {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--pad);
  position: relative;
  z-index: 1;
}
.hero-tag {
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.7rem;
}
.hero-tag .pulse {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 var(--accent);
  animation: pulse 2.4s var(--ease) infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(255, 94, 58, 0.5); }
  70%  { box-shadow: 0 0 0 14px rgba(255, 94, 58, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 94, 58, 0); }
}

.hero h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(3.5rem, 1rem + 14vw, 11rem);
  line-height: 0.92;
  letter-spacing: -0.04em;
  margin-bottom: 1.5rem;
}
.hero h1 .accent { color: var(--accent); }

.hero-sub {
  font-size: clamp(1.1rem, 0.9rem + 1vw, 1.5rem);
  color: var(--text);
  max-width: 30ch;
  margin-bottom: 2.5rem;
  font-weight: 400;
}
.hero-sub strong { font-weight: 600; color: var(--text); }

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
}

/* Przyciski */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.9rem 1.6rem;
  border-radius: 999px;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  transition: all var(--dur) var(--ease);
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover {
  background: #ff7556;
  transform: translateY(-2px);
  box-shadow: 0 10px 30px -10px rgba(255, 94, 58, 0.6);
}
.btn-ghost {
  border: 1px solid var(--border-strong);
  color: var(--text);
}
.btn-ghost:hover {
  border-color: var(--text);
  background: var(--surface);
}
.btn .arrow {
  transition: transform var(--dur) var(--ease);
}
.btn:hover .arrow { transform: translateX(4px); }

/* Wskaźnik scrolla */
.scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  color: var(--muted-2);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-family: var(--font-display);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  opacity: 0.7;
}
.scroll-hint .line {
  width: 1px; height: 36px;
  background: linear-gradient(var(--muted), transparent);
  animation: scrollLine 2s var(--ease) infinite;
}
@keyframes scrollLine {
  0%   { transform: scaleY(0); transform-origin: top; }
  50%  { transform: scaleY(1); transform-origin: top; }
  51%  { transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: start;
}
.about-text p { color: var(--muted); margin-bottom: 1.2rem; max-width: 60ch; }
.about-text p strong { color: var(--text); font-weight: 500; }

.about-meta {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 2.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--border);
}
.meta-item .label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted-2);
  margin-bottom: 0.4rem;
  font-family: var(--font-display);
}
.meta-item .value { color: var(--text); font-weight: 500; }

/* ---------- Music ---------- */
.tracks {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 3rem;
}
.track {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.track:hover {
  border-color: var(--border-strong);
  transform: translateY(-3px);
}
.track-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}
.track-num {
  font-family: var(--font-display);
  font-size: 0.8rem;
  color: var(--accent);
  letter-spacing: 0.1em;
}
.track-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
}
.track-platform {
  font-size: 0.78rem;
  color: var(--muted-2);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.track iframe {
  width: 100%;
  height: 152px;
  border: 0;
  border-radius: var(--radius-sm);
}

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  margin-top: 3rem;
}
.contact-info p { color: var(--muted); margin-bottom: 1.5rem; max-width: 45ch; }
.contact-channels { display: flex; flex-direction: column; gap: 1rem; margin-top: 2rem; }
.contact-channel {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.2rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: all var(--dur) var(--ease);
}
.contact-channel:hover {
  border-color: var(--border-strong);
  transform: translateX(4px);
}
.contact-channel .ico {
  width: 38px; height: 38px;
  display: grid;
  place-items: center;
  background: var(--accent-soft);
  border-radius: 10px;
  color: var(--accent);
  flex-shrink: 0;
}
.contact-channel .k {
  font-size: 0.78rem;
  color: var(--muted-2);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: var(--font-display);
}
.contact-channel .v { font-weight: 500; }

/* Formularz */
.form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(1.5rem, 4vw, 2.5rem);
}
.field { margin-bottom: 1.3rem; }
.field label {
  display: block;
  font-size: 0.82rem;
  color: var(--muted);
  margin-bottom: 0.5rem;
  font-family: var(--font-display);
  letter-spacing: 0.04em;
}
.field input,
.field textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  color: var(--text);
  font: inherit;
  font-size: 16px; /* iOS: zapobiega auto-zoom przy focusie */
  -webkit-appearance: none;
  appearance: none;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.field input::placeholder,
.field textarea::placeholder { color: var(--muted-2); }
.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.field textarea { resize: vertical; min-height: 140px; }
.field-row { display: grid; grid-template-columns: 1fr; gap: 0; }

.form .btn { width: 100%; justify-content: center; }
.form-status {
  margin-top: 1rem;
  padding: 0.9rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  display: none;
}
.form-status.is-ok    { display: block; background: rgba(46, 204, 113, 0.1); color: #4ade80; border: 1px solid rgba(74, 222, 128, 0.25); }
.form-status.is-error { display: block; background: rgba(255, 94, 58, 0.1);  color: var(--accent); border: 1px solid rgba(255, 94, 58, 0.25); }

/* Honeypot (ukryty, antyspam) */
.hp { position: absolute; left: -9999px; opacity: 0; pointer-events: none; }

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--border);
  padding-block: 3rem 2rem;
  margin-top: 2rem;
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}
.footer .logo { font-size: 1.1rem; }
.socials { display: flex; gap: 0.8rem; }
.socials a {
  width: 42px; height: 42px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--muted);
  transition: all var(--dur) var(--ease);
}
.socials a:hover {
  color: var(--accent);
  border-color: var(--accent);
  transform: translateY(-3px);
}
.copyright { color: var(--muted-2); font-size: 0.85rem; }

/* ---------- Animacje wejścia ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}
.reveal[data-delay="1"] { transition-delay: 0.08s; }
.reveal[data-delay="2"] { transition-delay: 0.16s; }
.reveal[data-delay="3"] { transition-delay: 0.24s; }

/* ---------- Responsive (MOBILE-FIRST: ulepszenia dla większych ekranów) ---------- */

/* Tablet+ : siatki dwukolumnowe */
@media (min-width: 720px) {
  body { font-size: 1.0625rem; }
  .about-grid   { grid-template-columns: 1.4fr 1fr; }
  .contact-grid { grid-template-columns: 1fr 1.1fr; }
  .tracks       { grid-template-columns: 1fr 1fr; }
  .tracks .track.full { grid-column: 1 / -1; }
  .field-row    { grid-template-columns: 1fr 1fr; gap: 1.3rem; }
  .about-meta   { grid-template-columns: repeat(2, 1fr); }
  .hero-cta     { flex-direction: row; }
}

/* Desktop : nawigacja inline, hamburger ukryty */
@media (min-width: 861px) {
  .nav-toggle { display: none; }
  .nav-links {
    position: static;
    flex-direction: row;
    align-items: center;
    gap: 2rem;
    background: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    border: none;
    padding: 0;
    transform: none;
  }
  .nav-links a {
    font-size: 0.95rem;
    padding: 0;
    border: none;
    min-height: 0;
    position: relative;
  }
  .nav-links a::after {
    content: "";
    position: absolute;
    left: 0; bottom: -6px;
    width: 0; height: 1.5px;
    background: var(--accent);
    transition: width var(--dur) var(--ease);
  }
  .nav-links a:hover { color: var(--text); }
  .nav-links a:hover::after { width: 100%; }
  /* Na desktop lang-switch jest inline, bez separatora */
  .nav-links .lang-switch { margin-top: 0; padding-top: 0; border: none; margin-left: 1rem; }
}

/* ---------- Dostępność ---------- */
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
}