/* =============================================
   scherzyna.cz – Portfolio Card
   Dark theme inspired by terminal aesthetic
   ============================================= */

:root {
  --clr-bg:         #0d0d0d;
  --clr-surface:    #141414;
  --clr-surface-2:  #1a1a1a;
  --clr-border:     rgba(255,255,255,0.07);
  --clr-amber:      #ef4444;
  --clr-amber-dim:  rgba(239,68,68,0.12);
  --clr-amber-glow: rgba(239,68,68,0.4);
  --clr-blue:       #dc2626;
  --clr-blue-dim:   rgba(239,68,68,0.08);
  --clr-text:       #e8e8e8;
  --clr-muted:      #666;
  --clr-muted-2:    #888;
  --font-sans:      'Space Grotesk', sans-serif;
  --font-mono:      'JetBrains Mono', monospace;
  --radius:         12px;
  --radius-sm:      8px;
  --transition:     0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background: var(--clr-bg);
  color: var(--clr-text);
  font-family: var(--font-sans);
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow-x: hidden;
  position: relative;
  padding-bottom: env(safe-area-inset-bottom, 0);
}

/* ── Background effects ──────────────────────── */

.noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 200px;
  z-index: 0;
}

.bg-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  z-index: 0;
}

.bg-glow--amber {
  width: 500px;
  height: 500px;
  background: rgba(239, 68, 68, 0.07);
  top: -100px;
  right: -100px;
}

.bg-glow--blue {
  width: 400px;
  height: 400px;
  background: rgba(239, 68, 68, 0.05);
  bottom: -80px;
  left: -80px;
}

/* ── Card wrapper ─────────────────────────────── */

.card-wrapper {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 680px;
  padding: 24px 16px;
}

.card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.03),
    0 32px 80px rgba(0,0,0,0.6),
    0 0 60px rgba(239,68,68,0.04);
  transform: translateY(20px);
  opacity: 0;
  transition: transform 0.7s cubic-bezier(0.22,1,0.36,1), opacity 0.7s ease;
}

.card.is-visible {
  transform: translateY(0);
  opacity: 1;
}

.card.is-refs .card__main {
  display: none;
}

/* ── Header ──────────────────────────────────── */

.card__header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 24px;
  border-bottom: 1px solid var(--clr-border);
  background: var(--clr-surface-2);
}

.card__logo {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 500;
  color: var(--clr-amber);
  letter-spacing: 0.02em;
  flex-shrink: 0;
}

.logo-bracket {
  opacity: 0.5;
}

.logo-initial {
  margin: 0 2px;
}

.card__domain {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--clr-muted);
  flex: 1;
}

.card__status {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 11px;
  color: var(--clr-muted-2);
  font-family: var(--font-mono);
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 8px rgba(34,197,94,0.7);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; box-shadow: 0 0 8px rgba(34,197,94,0.7); }
  50%       { opacity: 0.6; box-shadow: 0 0 4px rgba(34,197,94,0.3); }
}

/* ── Main ─────────────────────────────────────── */

.card__main {
  padding: 32px 24px 24px;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.card__main-row {
  display: flex;
  gap: 32px;
  align-items: flex-start;
}

.card__intro {
  flex: 1;
}

.card__label {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--clr-amber);
  margin-bottom: 12px;
  opacity: 0.85;
}

.card__name {
  font-size: clamp(2rem, 6vw, 2.8rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}

.card__name--accent {
  color: var(--clr-amber);
}

.card__desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--clr-muted-2);
  max-width: 340px;
  width: 100%;
}

/* ── Stack ────────────────────────────────────── */

.card__stack {
  flex-shrink: 0;
  min-width: 200px;
}

.card__stack-label {
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--clr-muted);
  margin-bottom: 12px;
}

.stack-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 7px;
}

.stack-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 500;
  cursor: default;
  transition: border-color var(--transition), background var(--transition), transform var(--transition);
  opacity: 0;
  transform: translateY(6px);
}

.stack-item.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.stack-item:hover {
  border-color: var(--clr-amber);
  background: var(--clr-amber-dim);
  transform: translateY(-1px);
}

.stack-item__icon {
  font-size: 14px;
  line-height: 1;
}

.stack-item__name {
  color: var(--clr-text);
  font-family: var(--font-mono);
}

/* ── Tabs ─────────────────────────────────────── */

.card__tabs {
  display: flex;
  gap: 0;
  padding: 0 24px;
  border-bottom: 1px solid var(--clr-border);
  background: var(--clr-surface);
}

.card__tab {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--clr-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 14px 16px 12px;
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition);
  position: relative;
  top: 1px;
}

.card__tab:hover {
  color: var(--clr-text);
}

.card__tab.is-active {
  color: var(--clr-amber);
  border-bottom-color: var(--clr-amber);
}

/* ── Reference panel ──────────────────────────── */

.card__refs {
  padding: 20px 24px 8px;
}

.ref-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.ref-item {
  padding: 18px 0;
  border-bottom: 1px solid var(--clr-border);
  transition: background var(--transition);
}

.ref-item:last-child {
  border-bottom: none;
}

.ref-item__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}

.ref-item__num {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--clr-amber);
  opacity: 0.6;
}

.ref-item__year {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--clr-muted);
}

.ref-item__title {
  font-size: 13px;
  font-weight: 600;
  color: var(--clr-text);
  margin-bottom: 6px;
  letter-spacing: -0.01em;
}

.ref-item__desc {
  font-size: 12px;
  color: var(--clr-muted);
  line-height: 1.65;
  margin-bottom: 10px;
}

.ref-item__link {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid rgba(239,68,68,0.3);
  transition: color var(--transition), border-color var(--transition);
}

.ref-item__link:hover {
  color: var(--clr-amber);
  border-bottom-color: var(--clr-amber);
}

.ref-item__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.ref-tag {
  font-family: var(--font-mono);
  font-size: 10px;
  padding: 3px 8px;
  border-radius: 4px;
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  color: var(--clr-amber);
  opacity: 0.85;
  transition: border-color var(--transition), opacity var(--transition);
}

.ref-item:hover .ref-tag {
  opacity: 1;
  border-color: rgba(239,68,68,0.25);
}

/* ── Services ─────────────────────────────────── */

.card__services {
  padding: 16px 0 0;
  margin-top: 8px;
  border-top: 1px solid var(--clr-border);
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.service {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--clr-border);
  transition: background var(--transition);
}

.service:last-child {
  border-bottom: none;
}

.service__num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--clr-amber);
  opacity: 0.6;
  padding-top: 2px;
  flex-shrink: 0;
  min-width: 22px;
}

.service__title {
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--clr-text);
}

.service__desc {
  font-size: 12px;
  color: var(--clr-muted);
  line-height: 1.6;
}

/* ── Footer ──────────────────────────────────── */

.card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 24px;
  border-top: 1px solid var(--clr-border);
  background: var(--clr-surface-2);
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  font-family: var(--font-sans);
  text-decoration: none;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  cursor: pointer;
  border: none;
}

.btn--primary {
  background: var(--clr-amber);
  color: #0d0d0d;
}

.btn--primary:hover {
  background: #f87171;
  transform: translateY(-1px);
  box-shadow: 0 4px 20px var(--clr-amber-glow);
}

.btn--primary:active {
  transform: translateY(0);
}

.card__footer-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 3px;
}

.card__copy {
  font-size: 11px;
  color: var(--clr-muted);
  font-family: var(--font-mono);
}

.card__ico {
  font-size: 10px;
  color: var(--clr-muted);
  font-family: var(--font-mono);
}

.card__ico-val {
  color: var(--clr-muted-2);
}

/* ── Terminal easter egg ─────────────────────── */

.terminal-btn {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  color: var(--clr-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 100;
  transition: border-color var(--transition), color var(--transition), transform var(--transition);
}

.terminal-btn:hover {
  border-color: var(--clr-amber);
  color: var(--clr-amber);
  transform: scale(1.08);
}

.terminal {
  position: fixed;
  bottom: 80px;
  right: 24px;
  width: min(440px, calc(100vw - 48px));
  background: #0a0a0a;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  overflow: hidden;
  z-index: 99;
  box-shadow: 0 20px 60px rgba(0,0,0,0.8);
  transform: translateY(12px) scale(0.97);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.3s cubic-bezier(0.22,1,0.36,1), opacity 0.3s ease;
}

.terminal.is-open {
  transform: translateY(0) scale(1);
  opacity: 1;
  pointer-events: all;
}

.terminal__bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 10px 14px;
  background: #141414;
  border-bottom: 1px solid var(--clr-border);
}

.terminal__dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}

.terminal__dot--red    { background: #ff5f57; }
.terminal__dot--yellow { background: #febc2e; }
.terminal__dot--green  { background: #28c840; }

.terminal__title {
  flex: 1;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--clr-muted);
  text-align: center;
  margin-left: -26px;
}

.terminal__close {
  background: none;
  border: none;
  color: var(--clr-muted);
  font-size: 16px;
  cursor: pointer;
  line-height: 1;
  padding: 0 2px;
  transition: color var(--transition);
}

.terminal__close:hover {
  color: var(--clr-text);
}

.terminal__body {
  padding: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.8;
  color: #aaa;
  min-height: 160px;
  max-height: 280px;
  overflow-y: auto;
}

.terminal__line {
  display: flex;
  gap: 8px;
}

.terminal__prompt {
  color: var(--clr-amber);
  flex-shrink: 0;
}

.terminal__cmd {
  color: #e8e8e8;
}

.terminal__out {
  color: #6ee7b7;
  padding-left: 16px;
}

.terminal__cursor {
  display: inline-block;
  width: 7px;
  height: 13px;
  background: var(--clr-amber);
  vertical-align: middle;
  animation: blink 1s step-end infinite;
}

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

/* ── Responsive ──────────────────────────────── */

/* Tablet / velký mobil (≤ 600px) */
@media (max-width: 600px) {
  body {
    align-items: flex-start;
  }

  .card-wrapper {
    padding: 16px 12px 80px; /* prostor pro terminal-btn */
  }

  .card__main {
    gap: 20px;
    padding: 24px 16px 16px;
  }

  .card__main-row {
    flex-direction: column;
  }

  .card__intro {
    width: 100%;
  }

  .card__desc {
    max-width: 100%;
  }

  .card__stack {
    width: 100%;
    min-width: unset;
  }

  /* 4 sloupce tech-stacku – ikona + text */
  .stack-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .stack-item {
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 10px 6px;
    text-align: center;
  }

  .stack-item__icon {
    font-size: 18px;
  }

  .stack-item__name {
    font-size: 10px;
  }

  .card__header {
    padding: 12px 16px;
    gap: 10px;
  }

  .card__tabs {
    padding: 0 16px;
  }

  .card__refs {
    padding: 16px 16px 4px;
  }

  .service {
    padding: 14px 0;
  }

  .card__footer {
    padding: 14px 16px;
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }

  .btn--primary {
    width: 100%;
    justify-content: center;
    padding: 13px 18px;
    font-size: 14px;
  }

  .card__footer-right {
    align-items: flex-start;
    flex-direction: row;
    justify-content: space-between;
  }
}

/* Střední mobil (≤ 430px) – skryjeme status text, zmenšíme header */
@media (max-width: 430px) {
  .card__header {
    padding: 11px 14px;
  }

  .status-text {
    display: none;
  }

  .card__name {
    font-size: clamp(1.8rem, 9vw, 2.4rem);
  }

  /* 4 sloupce stále fungují */
  .stack-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Malý mobil (≤ 360px) – 2 sloupce, vše úzké */
@media (max-width: 360px) {
  .card-wrapper {
    padding: 8px 8px 80px;
  }

  .card__header {
    padding: 10px 12px;
    gap: 8px;
  }

  .card__domain {
    font-size: 10px;
  }

  .card__main {
    padding: 18px 12px 12px;
    gap: 16px;
  }

  .card__footer {
    padding: 12px 12px;
  }

  .card__name {
    font-size: clamp(1.6rem, 10vw, 2rem);
  }

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

  .stack-item {
    flex-direction: row;
    text-align: left;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
  }

  .stack-item__name {
    font-size: 11px;
  }
}

/* Terminál – na mobilu se rozbalí přes celou šířku zdola */
@media (max-width: 520px) {
  .terminal {
    bottom: 0;
    right: 0;
    left: 0;
    width: 100%;
    border-radius: var(--radius) var(--radius) 0 0;
    border-bottom: none;
    padding-bottom: env(safe-area-inset-bottom, 0);
  }

  .terminal-btn {
    bottom: calc(16px + env(safe-area-inset-bottom, 0px));
    right: 16px;
  }
}