/* ============================================================
   YOUTUBE TOOLS FRONTEND — Production Level v3.0
   Red & White Premium Theme | ShubhamPal.co.in
   Responsive: Mobile First · Touch Friendly · Animated
============================================================ */

/* ── CSS VARIABLES (Frontend) ──────────────────────────────── */
:root {
  --yt-primary:     #d10000;
  --yt-primary-h:   #a80000;
  --yt-primary-l:   #ff2020;
  --yt-primary-rgb: 209,0,0;
  --yt-soft:        #fff5f5;
  --yt-soft-2:      #ffe8e8;
  --yt-dark:        #0f172a;
  --yt-muted:       #475569;
  --yt-muted-2:     #94a3b8;
  --yt-border:      rgba(209,0,0,.1);
  --yt-bg-card:     #ffffff;
  --yt-bg-input:    #f8fafc;
  --yt-shadow:      0 20px 60px rgba(0,0,0,.11);
  --yt-shadow-sm:   0 8px 28px rgba(0,0,0,.09);
  --yt-radius:      20px;
  --yt-radius-sm:   12px;
  --yt-transition:  .25s cubic-bezier(.4,0,.2,1);
}

/* ── RESET ──────────────────────────────────────────────────── */
.yt-tool-form *,
.yt-result *,
.yt-result-card * { box-sizing: border-box; }

/* ============================================================
   ERROR STATE
============================================================ */
.yt-error {
  text-align: center;
  color: var(--yt-primary);
  font-weight: 700;
  font-size: clamp(13px,1.5vw,15px);
  margin: 20px auto;
  padding: 16px 20px;
  background: var(--yt-soft);
  border-radius: 14px;
  border: 1px solid rgba(var(--yt-primary-rgb),.2);
  max-width: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

/* ============================================================
   LOADING — ANIMATED SPINNER (keeps original design)
============================================================ */
.yt-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 48px 16px;
  color: var(--yt-primary);
  font-weight: 600;
  font-size: 15px;
}

.yt-spinner {
  width: 36px; height: 36px;
  border: 3px solid #ffe5e5;
  border-top-color: var(--yt-primary);
  border-radius: 50%;
  animation: ytSpin .7s linear infinite;
  flex-shrink: 0;
}
@keyframes ytSpin { to { transform: rotate(360deg); } }

/* ============================================================
   SKELETON LOADING (replaces spinner for content areas)
============================================================ */
.yt-skeleton-wrap {
  max-width: 600px;
  margin: 40px auto;
  padding: 28px;
  background: var(--yt-bg-card);
  border-radius: var(--yt-radius);
  box-shadow: var(--yt-shadow);
  border: 1px solid var(--yt-border);
}
.yt-skeleton-avatar {
  width: 80px; height: 80px; border-radius: 50%;
  margin: 0 auto 16px;
}
.yt-skeleton-line {
  height: 14px; border-radius: 7px; margin-bottom: 10px;
}
.yt-skeleton-line.w100 { width: 100%; }
.yt-skeleton-line.w70  { width: 70%; margin-left: auto; margin-right: auto; }
.yt-skeleton-line.w50  { width: 50%; margin-left: auto; margin-right: auto; }
.yt-skeleton-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 16px;
}
.yt-skeleton-box { height: 72px; border-radius: 12px; }

/* Shared shimmer */
.yt-skeleton-avatar,
.yt-skeleton-line,
.yt-skeleton-box {
  background: linear-gradient(90deg,#f0f0f0 25%,#e0e0e0 37%,#f0f0f0 63%);
  background-size: 400px 100%;
  animation: ytShimmer 1.4s ease infinite;
}
@keyframes ytShimmer { 0%{background-position:-400px 0} 100%{background-position:400px 0} }

/* ============================================================
   TOOL FORM — GLOBAL
============================================================ */
.yt-tool-form {
  max-width: 640px;
  margin: 32px auto;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* ================================
   FIXED INPUT / SELECT (FINAL)
================================ */
.yt-tool-form input,
.yt-tool-form select {
  flex: 1 !important;
  min-width: 200px !important;

  padding: 15px 18px !important;
  font-size: clamp(14px,1.5vw,15px) !important;

  border-radius: var(--yt-radius-sm) !important;
  border: 1.5px solid #e2e8f0 !important;

  background: var(--yt-bg-input) !important;
  color: var(--yt-dark) !important;

  font-family: inherit !important;
  outline: none !important;

  box-sizing: border-box !important;
  min-height: 50px !important;

  -webkit-appearance: none !important;
  appearance: none !important;

  transition: 
    border-color var(--yt-transition),
    box-shadow var(--yt-transition),
    background var(--yt-transition),
    transform 0.15s ease !important;
}

/* ===== FOCUS (Premium feel) ===== */
.yt-tool-form input:focus,
.yt-tool-form select:focus {
  border-color: var(--yt-primary) !important;
  background: #ffffff !important;

  box-shadow: 0 0 0 3px rgba(var(--yt-primary-rgb),.12) !important;
  transform: translateY(-1px);
}

/* ===== HOVER ===== */
.yt-tool-form input:hover,
.yt-tool-form select:hover {
  border-color: rgba(var(--yt-primary-rgb), 0.4) !important;
}

/* ===== PLACEHOLDER ===== */
.yt-tool-form input::placeholder {
  color: var(--yt-muted-2) !important;
  font-size: 14px;
}

/* ===== SELECT ARROW FIX ===== */
.yt-tool-form select {
  cursor: pointer !important;

  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23475569' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E") !important;

  background-repeat: no-repeat !important;
  background-position: right 16px center !important;
  padding-right: 40px !important;
}

.yt-tool-form input:focus,
.yt-tool-form select:focus {
  border-color: var(--yt-primary);
  background: #ffffff;
  box-shadow: 0 0 0 3px rgba(var(--yt-primary-rgb),.12);
}

.yt-tool-form input::placeholder { color: var(--yt-muted-2); font-size: 14px; }

.yt-tool-form select {
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23475569' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
  appearance: none;
}

/* Submit button */
.yt-tool-form button {
  padding: 15px 28px;
  min-height: 50px;
  background: linear-gradient(135deg,var(--yt-primary),var(--yt-primary-l));
  color: #ffffff;
  border: none;
  border-radius: var(--yt-radius-sm);
  font-size: clamp(14px,1.5vw,15px);
  font-weight: 700;
  cursor: pointer;
  font-family: inherit;
  transition: background var(--yt-transition), transform var(--yt-transition), box-shadow var(--yt-transition);
  white-space: nowrap;
  box-shadow: 0 8px 24px rgba(var(--yt-primary-rgb),.35);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  -webkit-tap-highlight-color: transparent;
  will-change: transform;
}
.yt-tool-form button:hover   { background: linear-gradient(135deg,var(--yt-primary-h),var(--yt-primary)); transform: translateY(-2px); box-shadow: 0 14px 36px rgba(var(--yt-primary-rgb),.42); }
.yt-tool-form button:active  { transform: translateY(1px); box-shadow: 0 4px 12px rgba(var(--yt-primary-rgb),.3); }
.yt-tool-form button:disabled{ opacity: .65; cursor: not-allowed; transform: none !important; }

/* Compare form (2 inputs + button) */
.yt-compare-form {
  max-width: 880px !important;
  display: grid !important;
  grid-template-columns: 1fr 1fr auto !important;
  gap: 12px !important;
  flex-wrap: unset !important;
}

/* RPM / multi-field grid forms */
.yt-grid-form {
  max-width: 780px !important;
  display: grid !important;
  gap: 12px !important;
  flex-wrap: unset !important;
}

/* ============================================================
   RESULT CARDS (common base — fade-in)
============================================================ */
.yt-result-card,
.yt-video-result,
.yt-short-result,
.yt-frequency-result,
.yt-best-time,
.yt-svsl-result,
.yt-rpm-result,
.yt-growth-result,
.yt-tag-result {
  background: var(--yt-bg-card);
  padding: clamp(24px,5vw,38px) clamp(20px,5vw,34px);
  border-radius: var(--yt-radius);
  max-width: 620px;
  margin: 36px auto;
  box-shadow: var(--yt-shadow);
  text-align: center;
  border: 1px solid var(--yt-border);
  animation: ytFadeUp .4s cubic-bezier(.2,.8,.2,1);
  position: relative;
  overflow: hidden;
}

/* Top accent line */
.yt-result-card::before,
.yt-video-result::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg,var(--yt-primary),var(--yt-primary-l));
}

@keyframes ytFadeUp {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   CHANNEL LOGO / THUMB
============================================================ */
.yt-channel-logo,
.yt-result-card img,
.yt-growth-result img {
  width: 90px; height: 90px;
  border-radius: 50%;
  margin-bottom: 14px;
  border: 3px solid rgba(var(--yt-primary-rgb),.2);
  box-shadow: 0 8px 24px rgba(0,0,0,.15);
  object-fit: cover;
}

/* Channel name */
.yt-result-card h2,
.yt-video-result h2 {
  font-size: clamp(16px,2.5vw,20px);
  font-weight: 800;
  color: var(--yt-dark);
  margin: 0 0 6px;
}

/* ============================================================
   METRICS GRID
============================================================ */
.yt-video-stats,
.yt-growth-stats,
.yt-metrics {
  display: grid;
  grid-template-columns: repeat(2,1fr);
  gap: 14px;
  margin-top: 20px;
}

.yt-video-stats div,
.yt-growth-stats p,
.yt-metrics div {
  background: linear-gradient(135deg,var(--yt-soft),var(--yt-soft-2));
  padding: 16px 12px;
  border-radius: 14px;
  border: 1px solid rgba(var(--yt-primary-rgb),.12);
  transition: transform var(--yt-transition), box-shadow var(--yt-transition);
}
.yt-video-stats div:hover,
.yt-metrics div:hover { transform: translateY(-3px); box-shadow: 0 10px 28px rgba(var(--yt-primary-rgb),.14); }

.yt-video-stats strong,
.yt-growth-stats strong,
.yt-metrics strong   { display: block; font-size: clamp(16px,2.5vw,20px); font-weight: 800; color: var(--yt-primary); margin-bottom: 4px; }
.yt-video-stats span,
.yt-growth-stats span,
.yt-metrics span     { font-size: 12px; color: var(--yt-muted); font-weight: 500; }

/* ============================================================
   SUBSCRIBER COUNTER ANIMATION
============================================================ */
.yt-anim {
  font-size: clamp(40px,8vw,56px);
  font-weight: 800;
  color: var(--yt-primary);
  font-variant-numeric: tabular-nums;
  line-height: 1;
  margin: 10px 0 6px;
  display: block;
  font-family: -apple-system, BlinkMacSystemFont, monospace;
  letter-spacing: -1px;
}
.yt-sub-short { font-size: 15px; color: var(--yt-muted); margin-top: 8px; display: block; }

/* ============================================================
   PERFORMANCE BADGE
============================================================ */
.yt-performance {
  margin-top: 18px;
  font-size: clamp(14px,1.8vw,16px);
  font-weight: 700;
  padding: 12px 22px;
  background: linear-gradient(135deg,var(--yt-soft),var(--yt-soft-2));
  border-radius: 12px;
  border: 1px solid rgba(var(--yt-primary-rgb),.15);
  display: inline-block;
}
.yt-performance strong { color: var(--yt-primary); }
.yt-engagement { background: linear-gradient(135deg,#ffe2e2,#ffd0d0) !important; border-color: rgba(var(--yt-primary-rgb),.25) !important; }

/* ============================================================
   RPM / EARNINGS
============================================================ */
.yt-earn {
  font-size: clamp(22px,4vw,30px);
  font-weight: 800;
  color: var(--yt-primary);
  margin-top: 16px;
  line-height: 1.2;
}
.yt-earn strong { color: var(--yt-primary); }
.desc { display: block; margin-top: 12px; font-size: 13px; color: var(--yt-muted-2); line-height: 1.65; text-align: center; }

/* ============================================================
   TAG EXTRACTOR
============================================================ */
.yt-tag-result { text-align: left; }

.tag-box { margin-bottom: 22px; position: relative; }
.tag-title { font-weight: 700; font-size: 14px; margin-bottom: 8px; display: block; color: var(--yt-primary); }

.copy-btn {
  position: absolute; top: 0; right: 0;
  background: linear-gradient(135deg,#0f172a,#1e293b);
  color: #fff; border: 0; padding: 8px 14px;
  font-size: 12px; font-weight: 700; border-radius: 8px;
  cursor: pointer; transition: background var(--yt-transition), transform var(--yt-transition);
  min-height: 36px;
}
.copy-btn:hover { background: var(--yt-primary); transform: translateY(-1px); }

textarea {
  width: 100%; height: 88px; padding: 12px;
  border-radius: 10px; border: 1.5px solid #e2e8f0;
  font-size: 13px; resize: vertical;
  font-family: "SF Mono",Consolas,monospace;
  background: var(--yt-bg-input);
  transition: border-color var(--yt-transition);
  box-sizing: border-box; color: var(--yt-dark);
}
textarea:focus { outline: none; border-color: var(--yt-primary); box-shadow: 0 0 0 3px rgba(var(--yt-primary-rgb),.1); }

/* ============================================================
   WIDE RESULT (SEO / RANK / IDEAS)
============================================================ */
.yt-result-wide {
  max-width: 1200px;
  margin: 40px auto 0;
  padding: 0 clamp(12px,3vw,20px);
}

.yt-result-full {
  background: var(--yt-bg-card);
  padding: clamp(22px,4vw,38px);
  border-radius: var(--yt-radius);
  box-shadow: var(--yt-shadow);
  border: 1px solid var(--yt-border);
  animation: ytFadeUp .4s cubic-bezier(.2,.8,.2,1);
}

/* ============================================================
   IDEA BOX
============================================================ */
.yt-idea-box {
  background: linear-gradient(135deg,var(--yt-soft),var(--yt-bg-card));
  padding: 22px; border-radius: 16px; margin-top: 22px;
  border: 1px solid rgba(var(--yt-primary-rgb),.1);
}
.yt-idea-box h4 {
  margin: 0 0 14px; font-size: clamp(14px,1.8vw,16px);
  font-weight: 800; color: var(--yt-dark);
  display: flex; align-items: center; gap: 10px;
}
.yt-idea-box h4::before {
  content: ""; display: block; width: 4px; height: 18px;
  background: linear-gradient(180deg,var(--yt-primary),var(--yt-primary-l));
  border-radius: 2px; flex-shrink: 0;
}
.yt-idea-box ul { list-style: none; padding: 0; margin: 0; }
.yt-idea-box li {
  display: flex; gap: 12px; margin-bottom: 10px;
  font-size: clamp(13px,1.5vw,14px); line-height: 1.6;
  padding: 10px 14px; background: var(--yt-bg-card); border-radius: 10px;
  border: 1px solid rgba(var(--yt-primary-rgb),.08);
  transition: border-color var(--yt-transition), transform var(--yt-transition);
}
.yt-idea-box li:hover { border-color: rgba(var(--yt-primary-rgb),.25); transform: translateX(3px); }
.idea-title { flex: 1; word-break: break-word; color: var(--yt-dark); }
.idea-score { font-weight: 800; color: var(--yt-primary); white-space: nowrap; font-size: 13px; }

/* ============================================================
   TRENDS GRID
============================================================ */
.yt-trends {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 14px; margin-top: 18px;
}
.yt-trend-item {
  background: linear-gradient(135deg,var(--yt-soft),var(--yt-soft-2));
  padding: 18px 14px; border-radius: 14px; text-align: center;
  border: 1px solid rgba(var(--yt-primary-rgb),.12);
  transition: transform var(--yt-transition), box-shadow var(--yt-transition);
}
.yt-trend-item:hover  { transform: translateY(-4px); box-shadow: 0 14px 35px rgba(var(--yt-primary-rgb),.15); }
.yt-trend-item strong { display: block; font-size: clamp(13px,1.6vw,15px); font-weight: 700; color: var(--yt-primary); margin-bottom: 5px; }
.yt-trend-item span   { font-size: 12px; color: var(--yt-muted); }

/* ============================================================
   INFO / INSIGHT BOXES
============================================================ */
.yt-insight, .yt-info, .yt-confidence {
  margin-top: 18px; font-size: clamp(13px,1.6vw,15px); line-height: 1.75;
  padding: 14px 18px; background: #f8fafc;
  border-radius: 12px; border-left: 4px solid var(--yt-primary); color: #334155;
}
.yt-note, .yt-tip, .yt-path { margin-top: 14px; font-size: 14px; color: var(--yt-muted); line-height: 1.7; }
.yt-status { font-size: 18px; font-weight: 800; color: var(--yt-primary); margin-top: 14px; display: block; }

.yt-suggestions, .yt-tips { margin-top: 22px; text-align: left; }
.yt-suggestions h4, .yt-tips h4 { font-size: 15px; font-weight: 700; color: var(--yt-primary); margin-bottom: 10px; }
.yt-suggestions ul, .yt-tips ul { padding-left: 18px; }
.yt-suggestions li, .yt-tips li { font-size: 14px; margin-bottom: 7px; color: #334155; }

.yt-fixes { margin-top: 22px; text-align: left; }
.yt-fixes h4 { margin-bottom: 10px; font-size: 15px; font-weight: 700; color: var(--yt-primary); }
.yt-fixes ul { padding-left: 18px; margin: 0; }
.yt-fixes li { font-size: 14px; margin-bottom: 6px; color: #334155; }

.yt-stage {
  margin-top: 20px; font-size: clamp(18px,2.8vw,22px); font-weight: 800; color: var(--yt-primary);
  padding: 14px 24px; background: linear-gradient(135deg,var(--yt-soft),var(--yt-soft-2));
  border-radius: 14px; display: inline-block;
}
.yt-sub-winner { text-align: center; margin-top: 20px; font-weight: 700; font-size: 16px; color: var(--yt-primary); }

/* ============================================================
   COMPARE LAYOUT
============================================================ */
.yt-compare-wrapper,
.yt-sub-compare {
  max-width: 1020px;
  margin: 48px auto;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: start;
  gap: 24px;
}

.yt-compare-card,
.yt-sub-box {
  background: var(--yt-bg-card);
  border-radius: var(--yt-radius);
  padding: clamp(20px,4vw,30px);
  text-align: center;
  box-shadow: var(--yt-shadow);
  border: 1px solid var(--yt-border);
  animation: ytFadeUp .4s cubic-bezier(.2,.8,.2,1);
}
.yt-compare-card img,
.yt-sub-box img     { width: 80px; height: 80px; border-radius: 50%; margin-bottom: 10px; border: 2px solid rgba(var(--yt-primary-rgb),.15); object-fit: cover; }
.yt-compare-card ul { list-style: none; padding: 0; }
.yt-compare-card li { margin-bottom: 8px; font-size: 14px; color: #334155; }

.yt-vs {
  width: 64px; height: 64px; border-radius: 50%;
  background: linear-gradient(135deg,var(--yt-primary),var(--yt-primary-l));
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 18px;
  box-shadow: 0 12px 30px rgba(var(--yt-primary-rgb),.4); flex-shrink: 0;
  position: sticky; top: 50%;
}

/* ============================================================
   RESPONSIVE — FRONTEND
============================================================ */
@media (max-width: 768px) {
  .yt-tool-form          { flex-direction: column; max-width: 100% !important; }
  .yt-tool-form input,
  .yt-tool-form select   { min-width: 100%; }
  .yt-tool-form button   { width: 100%; justify-content: center; }
  .yt-compare-form       { grid-template-columns: 1fr !important; }
  .yt-grid-form          { grid-template-columns: 1fr !important; }
  .yt-compare-wrapper,
  .yt-sub-compare        { grid-template-columns: 1fr !important; gap: 16px; }
  .yt-vs                 { margin: 4px auto; width: 52px; height: 52px; position: static; }
  .yt-trends             { grid-template-columns: 1fr 1fr !important; }
  .yt-result-wide        { padding: 0 10px; }
  .yt-result-card,
  .yt-video-result       { margin: 24px auto; padding: 22px 18px; }
  .yt-video-stats,
  .yt-metrics            { gap: 10px; }
  .yt-anim               { font-size: clamp(36px,10vw,48px); }
}

@media (max-width: 480px) {
  .yt-trends             { grid-template-columns: 1fr !important; }
  .yt-result-full        { padding: 18px 14px; border-radius: var(--yt-radius-sm); }
  .yt-idea-box li        { flex-direction: column; gap: 6px; }
  .idea-score            { align-self: flex-end; }
  .yt-video-stats,
  .yt-growth-stats,
  .yt-metrics            { grid-template-columns: 1fr !important; }
  .yt-skeleton-grid      { grid-template-columns: 1fr; }
}