/* ============================================================================
   base64.css — Tool-spezifische Styles für BASE64
   Geladen auf: tools/base64.php  (NACH main-vhc.css)
   ============================================================================ */

/* ── Seitenbereich ───────────────────────────────── */

body.tool-page main {
  flex: 1;
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 36px 20px 52px;
}

/* ── Tool-Header ─────────────────────────────────── */

.b64-header {
  text-align: center;
  margin-bottom: 1.8rem;
}

.b64-icon {
  width: 96px;
  height: 96px;
  display: block;
  margin: 0 auto 1rem;
  filter: drop-shadow(0 0 24px rgba(0, 245, 255, 0.35));
}

.b64-title {
  font-family: 'Orbitron', 'Segoe UI', system-ui, sans-serif;
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--neon1);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  text-shadow: 0 0 24px rgba(0, 229, 255, 0.45);
  margin: 0 0 0.5rem 0;
}

.b64-subtitle {
  font-size: 0.78rem;
  font-weight: 500;
  color: #84a2c6;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  margin: 0;
}

/* ── Wrapper / Grid ──────────────────────────────── */

.tool-wrap {
  width: 100%;
  max-width: 900px;
}

/* ── Globale Optionen ────────────────────────────── */

.b64-options {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.6rem;
  margin-bottom: 1.4rem;
}

.b64-options--inline {
  justify-content: flex-start;
  margin: 0 0 1rem 0;
}

.b64-opt {
  background: #0a101e;
  border: 1px solid #2e4a72;
  color: #84a2c6;
  font-size: 0.76rem;
  font-weight: 500;
  font-family: 'Exo 2', 'Segoe UI', system-ui, sans-serif;
  letter-spacing: 0.04em;
  padding: 0.45rem 0.9rem;
  cursor: pointer;
  border-radius: 3px;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.b64-opt:hover {
  color: var(--neon1);
  border-color: #34507a;
}

.b64-opt[aria-pressed="true"] {
  background: rgba(0, 245, 255, 0.08);
  border-color: var(--neon1);
  color: var(--neon1);
}

/* ── Grid / Karten ───────────────────────────────── */

.b64-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.1rem;
}

.b64-card {
  --b64-acc: #00f5ff;
  position: relative;
  background:
    radial-gradient(120% 90% at 100% 0%, rgba(0, 245, 255, 0.05), transparent 55%),
    linear-gradient(180deg, #0d1626, #0a1120);
  border: 1px solid var(--border);
  border-left: 3px solid var(--b64-acc);
  border-radius: 6px;
  padding: 1.1rem 1.2rem 1.25rem;
  display: flex;
  flex-direction: column;
}

.b64-card[data-accent="cyan"]  { --b64-acc: #00f5ff; }
.b64-card[data-accent="green"] { --b64-acc: #00ff88; }

.b64-card-head {
  margin-bottom: 1rem;
}

.b64-card-title {
  font-family: 'Orbitron', 'Segoe UI', system-ui, sans-serif;
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text);
  margin: 0 0 0.3rem 0;
}

.b64-card-desc {
  font-size: 0.8rem;
  font-weight: 500;
  line-height: 1.5;
  color: #84a2c6;
  margin: 0;
}

/* ── Richtungs-Umschalter ────────────────────────── */

.b64-mode {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.b64-mode-btn {
  flex: 1;
  background: #0a101e;
  border: 1px solid #2e4a72;
  color: #84a2c6;
  font-size: 0.78rem;
  font-weight: 500;
  font-family: 'Exo 2', 'Segoe UI', system-ui, sans-serif;
  letter-spacing: 0.05em;
  padding: 0.5rem 0.6rem;
  cursor: pointer;
  border-radius: 3px;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.b64-mode-btn:hover:not(.active) {
  color: var(--neon1);
  border-color: #34507a;
}

.b64-mode-btn.active {
  background: rgba(0, 245, 255, 0.08);
  border-color: var(--b64-acc);
  color: var(--b64-acc);
}

/* ── Felder / Inputs ─────────────────────────────── */

.b64-field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1rem;
}

.b64-field-lbl {
  font-size: 0.7rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: #84a2c6;
}

.b64-area {
  width: 100%;
  background: #0a101e;
  border: 1px solid #243859;
  color: var(--text);
  font-size: 0.9rem;
  font-family: 'Consolas', 'Courier New', monospace;
  line-height: 1.5;
  padding: 0.6rem 0.75rem;
  border-radius: 3px;
  outline: none;
  resize: vertical;
  min-height: 5.5rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.b64-area:focus {
  border-color: var(--b64-acc);
  box-shadow: 0 0 0 2px rgba(0, 245, 255, 0.08);
}

.b64-area::placeholder {
  color: #4a6488;
}

/* ── Ausgabe-Kopf + Buttons ──────────────────────── */

.b64-out-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.b64-btn-row {
  display: flex;
  gap: 0.5rem;
}

.b64-btn {
  background: #0a101e;
  border: 1px solid #2e4a72;
  color: #84a2c6;
  font-size: 0.72rem;
  font-weight: 500;
  font-family: 'Exo 2', 'Segoe UI', system-ui, sans-serif;
  letter-spacing: 0.04em;
  padding: 0.35rem 0.7rem;
  cursor: pointer;
  border-radius: 3px;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.b64-btn:hover {
  color: var(--neon1);
  border-color: #34507a;
}

.b64-btn.is-ok {
  border-color: var(--neon4);
  color: var(--neon4);
}

/* ── Ausgabe-Panel ───────────────────────────────── */

.b64-out {
  background: #070c16;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.65rem 0.8rem;
  min-height: 3.5rem;
  max-height: 16rem;
  overflow-y: auto;
  color: var(--text);
}

.b64-mono {
  font-family: 'Consolas', 'Courier New', monospace;
  font-size: 0.85rem;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-all;
  overflow-wrap: anywhere;
}

.b64-out:empty::before {
  content: '\2014';
  color: #4a6488;
}

/* ── Status / Fehlermeldungen ────────────────────── */

.b64-status {
  font-size: 0.74rem;
  font-weight: 500;
  line-height: 1.5;
  font-family: 'Consolas', 'Courier New', monospace;
  color: #84a2c6;
  min-height: 1rem;
}

.b64-status.is-error {
  color: #ff6b6b;
}

/* ── Datei-Upload ────────────────────────────────── */

.b64-file {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.b64-file-input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.b64-file-btn {
  display: inline-block;
  background: #0a101e;
  border: 1px solid #2e4a72;
  color: #84a2c6;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  padding: 0.5rem 0.9rem;
  border-radius: 3px;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.b64-file:hover .b64-file-btn,
.b64-file-input:focus + .b64-file-btn {
  color: var(--neon1);
  border-color: #34507a;
}

.b64-file-name {
  font-size: 0.78rem;
  font-weight: 500;
  color: #84a2c6;
  word-break: break-all;
}

.b64-file-prev {
  margin-bottom: 1rem;
}

.b64-file-prev img {
  max-width: 100%;
  max-height: 9rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  display: block;
}

/* ── Aufklappbare Howto-/Info-Sektion ────────────── */
/* Optik übernommen von word-counter (.howto-section), hier auf
   .b64-howto-* gescopt, da base64.php tools.css nicht lädt. */

.b64-howto-section {
  margin-top: 1.8rem;
}

.b64-howto-toggle {
  width: 100%;
  background: rgba(0, 245, 255, 0.04);
  border: 1px solid rgba(0, 245, 255, 0.25);
  border-radius: 4px;
  color: #c8d8f0;
  font-family: 'Orbitron', 'Segoe UI', system-ui, sans-serif;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.7rem 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  justify-content: space-between;
  box-shadow: 0 0 12px rgba(0, 245, 255, 0.06);
  transition: border-color 0.2s, color 0.2s, background 0.2s, box-shadow 0.2s;
}

.b64-howto-toggle:hover,
.b64-howto-toggle[aria-expanded="true"] {
  border-color: var(--neon1);
  color: var(--neon1);
  background: rgba(0, 245, 255, 0.07);
  box-shadow: 0 0 18px rgba(0, 245, 255, 0.12);
}

.b64-howto-toggle[aria-expanded="true"] {
  border-radius: 4px 4px 0 0;
}

.b64-howto-i {
  flex-shrink: 0;
  text-transform: none;
  font-family: 'Georgia', serif;
  font-style: italic;
  font-size: 0.78rem;
  font-weight: 700;
}

.b64-howto-arrow {
  flex-shrink: 0;
  font-size: 0.8rem;
  transition: transform 0.2s;
}

.b64-howto-toggle[aria-expanded="true"] .b64-howto-arrow {
  transform: rotate(180deg);
}

.b64-howto-body {
  display: none;
  background: var(--card);
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 6px 6px;
  padding: 1.25rem;
}

.b64-howto-body.is-open {
  display: block;
}

.b64-howto-body h3 {
  font-family: 'Orbitron', 'Segoe UI', system-ui, sans-serif;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--neon1);
  margin: 1rem 0 0.6rem;
}

.b64-howto-body h3:first-child {
  margin-top: 0;
}

.b64-howto-body p {
  font-family: 'Exo 2', 'Segoe UI', system-ui, sans-serif;
  font-size: 0.82rem;
  font-weight: 500;
  color: #84a2c6;
  line-height: 1.65;
  margin: 0 0 0.6rem;
}

.b64-howto-body p:last-child {
  margin-bottom: 0;
}

.b64-howto-body code {
  font-family: 'Consolas', 'Courier New', monospace;
  font-size: 0.78rem;
  color: var(--neon1);
  background: rgba(0, 245, 255, 0.06);
  border: 1px solid rgba(0, 245, 255, 0.15);
  border-radius: 3px;
  padding: 0.05rem 0.3rem;
  word-break: break-word;
}

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

@media (max-width: 680px) {
  .b64-grid {
    grid-template-columns: 1fr;
  }
  .b64-title {
    font-size: 1.8rem;
  }
}