/* ═══════════════════════════════════════════════════════════
   THE SIGNAL — стили блоков статей для AITools Guide v3
   Акцент: #7c6fff (фиолетовый), фон статьи светлый
   ═══════════════════════════════════════════════════════════ */

:root {
  --signal-primary:    #7c6fff;
  --signal-primary-dk: #5a4adf;
  --signal-green:      #43e97b;
  --signal-text:       #1a1a2e;
  --signal-muted:      #6b6b9a;
  --signal-bg-light:   #f8f8ff;
  --signal-border:     #e8e8f0;
  --signal-radius:     10px;

  --signal-info-bg:      #eeecff;
  --signal-info-border:  #7c6fff;
  --signal-info-icon:    ℹ️;

  --signal-warning-bg:     #fffbeb;
  --signal-warning-border: #f59e0b;

  --signal-success-bg:     #f0fdf4;
  --signal-success-border: #22c55e;

  --signal-tip-bg:     #faf5ff;
  --signal-tip-border: #a855f7;

  --signal-pros-bg:   #f0fdf4;
  --signal-pros-text: #15803d;
  --signal-cons-bg:   #fff1f2;
  --signal-cons-text: #be123c;

  --signal-code-bg:        #0f0f1a;
  --signal-code-header-bg: #1a1a2e;
  --signal-code-text:      #e2e8f0;
}

/* ═══ FAQ-аккордеоны ═══════════════════════════════════════ */
.signal-faq {
  margin: 1.75em 0;
  border-radius: var(--signal-radius);
  overflow: hidden;
  border: 1px solid var(--signal-border);
  box-shadow: 0 2px 12px rgba(124,111,255,.07);
}

.signal-faq-item {
  border-bottom: 1px solid var(--signal-border);
  background: #fff;
  transition: background .2s;
}

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

.signal-faq-item[open] {
  background: var(--signal-bg-light);
}

.signal-faq-q {
  cursor: pointer;
  padding: 1em 3em 1em 1.25em;
  font-weight: 600;
  font-size: 1.02em;
  color: var(--signal-text);
  list-style: none;
  position: relative;
  user-select: none;
  transition: background .15s;
}
.signal-faq-q::-webkit-details-marker { display: none; }

.signal-faq-q::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: transparent;
  transition: background .2s;
  border-radius: 0 2px 2px 0;
}
.signal-faq-item[open] .signal-faq-q::before {
  background: var(--signal-primary);
}

.signal-faq-q::after {
  content: '+';
  position: absolute;
  right: 1.25em;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.4em;
  font-weight: 300;
  color: var(--signal-primary);
  transition: transform .25s ease, content .1s;
  line-height: 1;
}
.signal-faq-item[open] .signal-faq-q::after { content: '−'; }

.signal-faq-q:hover { background: var(--signal-bg-light); }

.signal-faq-a {
  padding: .25em 1.25em 1.1em 1.25em;
  color: var(--signal-muted);
  line-height: 1.7;
  font-size: .97em;
  animation: faqSlide .2s ease;
}
@keyframes faqSlide {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ═══ Callout-блоки ════════════════════════════════════════ */
.signal-callout {
  display: flex;
  align-items: flex-start;
  gap: .9em;
  margin: 1.75em 0;
  padding: 1.1em 1.35em;
  border-radius: var(--signal-radius);
  border-left: 4px solid;
  box-shadow: 0 2px 8px rgba(0,0,0,.05);
}

.signal-callout-icon {
  font-size: 1.35em;
  flex-shrink: 0;
  line-height: 1.2;
}

.signal-callout-body {
  flex: 1;
  line-height: 1.65;
  font-size: .97em;
}
.signal-callout-body p { margin: 0; }
.signal-callout-body p + p { margin-top: .5em; }

.signal-callout-info    { background: var(--signal-info-bg);    border-left-color: var(--signal-info-border);    color: #2d2a6e; }
.signal-callout-warning { background: var(--signal-warning-bg); border-left-color: var(--signal-warning-border); color: #92400e; }
.signal-callout-success { background: var(--signal-success-bg); border-left-color: var(--signal-success-border); color: #166534; }
.signal-callout-tip     { background: var(--signal-tip-bg);     border-left-color: var(--signal-tip-border);     color: #6b21a8; }

/* ═══ Pros / Cons ══════════════════════════════════════════ */
.signal-pros-cons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1em;
  margin: 1.75em 0;
}
@media (max-width: 600px) {
  .signal-pros-cons { grid-template-columns: 1fr; }
}

.signal-pros,
.signal-cons {
  padding: 1.25em 1.35em;
  border-radius: var(--signal-radius);
  box-shadow: 0 2px 8px rgba(0,0,0,.05);
}

.signal-pros {
  background: var(--signal-pros-bg);
  border: 1px solid #86efac;
}
.signal-cons {
  background: var(--signal-cons-bg);
  border: 1px solid #fda4af;
}

.signal-pros h4,
.signal-cons h4 {
  margin: 0 0 .8em;
  font-size: 1.05em;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: .4em;
}
.signal-pros h4 { color: var(--signal-pros-text); }
.signal-cons h4 { color: var(--signal-cons-text); }

.signal-pros ul,
.signal-cons ul {
  margin: 0;
  padding-left: 1.2em;
  list-style: none;
}
.signal-pros li,
.signal-cons li {
  position: relative;
  margin: .45em 0;
  line-height: 1.55;
  font-size: .95em;
  padding-left: .2em;
}
.signal-pros li::before {
  content: '✓';
  position: absolute;
  left: -1.2em;
  color: #22c55e;
  font-weight: 700;
  font-size: .9em;
}
.signal-cons li::before {
  content: '✕';
  position: absolute;
  left: -1.2em;
  color: #f87171;
  font-weight: 700;
  font-size: .9em;
}
.signal-pros li { color: #1a3a1a; }
.signal-cons li { color: #3a1a1a; }

/* ═══ Code-блоки ════════════════════════════════════════════ */
.signal-code-block {
  margin: 1.75em 0;
  border-radius: var(--signal-radius);
  overflow: hidden;
  background: var(--signal-code-bg);
  box-shadow: 0 4px 16px rgba(0,0,0,.18);
  border: 1px solid rgba(124,111,255,.2);
}

.signal-code-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: .55em 1.1em;
  background: var(--signal-code-header-bg);
  border-bottom: 1px solid rgba(124,111,255,.15);
}

.signal-code-lang {
  color: #7c6fff;
  font-size: .8em;
  font-family: -apple-system, system-ui, sans-serif;
  text-transform: uppercase;
  letter-spacing: .08em;
  font-weight: 600;
}

.signal-code-copy {
  background: rgba(124,111,255,.15);
  color: #a8a0ff;
  border: 1px solid rgba(124,111,255,.25);
  padding: .3em .8em;
  border-radius: 5px;
  cursor: pointer;
  font-size: .8em;
  font-family: inherit;
  transition: all .2s;
  line-height: 1.4;
}
.signal-code-copy:hover {
  background: rgba(124,111,255,.3);
  border-color: #7c6fff;
  color: #fff;
}
.signal-code-copy.signal-copied {
  background: rgba(67,233,123,.2);
  border-color: #43e97b;
  color: #43e97b;
}

.signal-code-block pre {
  margin: 0;
  padding: 1.1em 1.25em;
  overflow-x: auto;
  background: transparent;
  color: var(--signal-code-text);
  font-family: 'Menlo','Monaco','Consolas','Courier New',monospace;
  font-size: .91em;
  line-height: 1.6;
}
.signal-code-block code {
  background: transparent;
  padding: 0;
  color: inherit;
  font-family: inherit;
  font-size: inherit;
}

/* Inline-код */
.entry-content p code,
.entry-content li code {
  background: rgba(124,111,255,.1);
  color: #5a4adf;
  padding: .15em .42em;
  border-radius: 4px;
  font-family: 'Menlo','Monaco','Consolas',monospace;
  font-size: .88em;
  border: 1px solid rgba(124,111,255,.15);
}

/* Таблицы */
.entry-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5em 0;
  font-size: .93em;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 1px 6px rgba(0,0,0,.07);
}
.entry-content table th {
  background: #1a1a2e;
  color: #fff;
  font-weight: 600;
  text-align: left;
  padding: .75em 1em;
  font-size: .88em;
  letter-spacing: .02em;
}
.entry-content table td {
  padding: .7em 1em;
  border-bottom: 1px solid var(--signal-border);
  color: var(--signal-muted);
}
.entry-content table tr:hover td { background: #f8f8ff; }