/* ================================================================
   EXTOLEM — PROOF / STATS SECTION
   File: /assets/css/proof.css
   ================================================================ */

.ex-proof {
  position: relative;
  width: 100%;
  padding: 120px 40px 130px;
  background-color: var(--ex-bg);
  overflow: hidden;
  isolation: isolate;
}
.ex-proof::before,
.ex-proof::after {
  content: ''; position: absolute; left: 0; right: 0; height: 100px; pointer-events: none; z-index: 0;
}
.ex-proof::before { top: 0;    background: linear-gradient(180deg, var(--ex-bg-2) 0%, transparent 100%); }
.ex-proof::after  { bottom: 0; background: linear-gradient(0deg,   var(--ex-bg-2) 0%, transparent 100%); }

.ex-proof-glow {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 800px; height: 500px; border-radius: 50%;
  background: radial-gradient(ellipse, rgba(25,245,195,0.045) 0%, transparent 65%);
  filter: blur(70px); pointer-events: none; z-index: 0;
}

.ex-proof-inner {
  position: relative; z-index: 2;
  max-width: 1200px; margin: 0 auto; width: 100%;
}

/* Header */
.ex-proof-header {
  text-align: center; max-width: 720px; margin: 0 auto 64px;
}
.ex-proof-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.68rem; font-weight: 700; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--ex-mint);
  background: var(--ex-mint-dim); border: 1px solid var(--ex-border-mint);
  padding: 5px 14px 5px 10px; border-radius: var(--ex-r-full); margin-bottom: 24px;
}
.ex-proof-eyebrow-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--ex-mint); box-shadow: 0 0 7px var(--ex-mint);
  flex-shrink: 0; animation: ex-proof-pulse 2.2s ease infinite;
}
@keyframes ex-proof-pulse {
  0%,100% { box-shadow: 0 0 5px var(--ex-mint); }
  50%      { box-shadow: 0 0 13px var(--ex-mint), 0 0 22px rgba(25,245,195,0.38); }
}
.ex-proof-h2 {
  font-size: clamp(1.9rem, 3.5vw, 2.75rem); font-weight: 800;
  line-height: 1.13; letter-spacing: -0.03em; color: var(--ex-text); margin-bottom: 20px;
}
.ex-proof-h2 .ex-proof-grad {
  background: var(--ex-grad-hero);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.ex-proof-sub {
  font-size: clamp(1rem, 1.5vw, 1.05rem); line-height: 1.78;
  color: var(--ex-text-muted); max-width: 600px; margin: 0 auto;
}

/* ================================================================
   STAT GRID
   ================================================================ */
.ex-proof-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

/* Stat card */
.ex-proof-card {
  position: relative;
  background: var(--ex-panel);
  border: 1px solid var(--ex-border);
  border-radius: var(--ex-r-lg);
  padding: 28px 24px 24px;
  overflow: hidden; isolation: isolate;
  cursor: default;
  transition: transform 0.28s var(--ex-ease), border-color 0.28s var(--ex-ease),
              background 0.28s var(--ex-ease), box-shadow 0.28s var(--ex-ease);
}
.ex-proof-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--ex-mint-glow), transparent);
  opacity: 0; transition: opacity 0.28s var(--ex-ease);
}
.ex-proof-card::after {
  content: ''; position: absolute; top: -30px; left: 50%;
  transform: translateX(-50%); width: 160px; height: 120px;
  background: radial-gradient(ellipse, rgba(25,245,195,0.08) 0%, transparent 70%);
  opacity: 0; transition: opacity 0.32s var(--ex-ease);
  pointer-events: none; z-index: 0;
}
.ex-proof-card:hover {
  transform: translateY(-4px);
  background: var(--ex-panel-strong);
  border-color: var(--ex-border-mint);
  box-shadow: 0 12px 40px rgba(0,0,0,0.45), 0 0 24px rgba(25,245,195,0.07);
}
.ex-proof-card:hover::before { opacity: 1; }
.ex-proof-card:hover::after  { opacity: 1; }
.ex-proof-card > * { position: relative; z-index: 1; }

/* Icon */
.ex-proof-card-icon {
  font-size: 1.4rem; margin-bottom: 14px; line-height: 1;
  transition: transform 0.28s var(--ex-ease-spring);
}
.ex-proof-card:hover .ex-proof-card-icon { transform: scale(1.15); }

/* Number */
.ex-proof-num {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 900; letter-spacing: -0.04em; line-height: 1;
  color: var(--ex-text); margin-bottom: 6px;
  display: flex; align-items: baseline; gap: 2px;
}
.ex-proof-num-suffix {
  font-size: 55%; font-weight: 700; color: var(--ex-mint);
}
.ex-proof-num-prefix {
  font-size: 65%; font-weight: 700; color: var(--ex-mint);
}
/* The actual counter span — targeted by JS */
.ex-proof-counter { display: inline; }

/* Label */
.ex-proof-card-label {
  font-size: 0.82rem; font-weight: 600; color: var(--ex-text-muted);
  line-height: 1.35; transition: color 0.22s var(--ex-ease);
}
.ex-proof-card:hover .ex-proof-card-label { color: var(--ex-text); }

/* Sub-label */
.ex-proof-card-sub {
  font-size: 0.7rem; color: var(--ex-text-subtle);
  margin-top: 4px; line-height: 1.4;
}

/* Placeholder variant — muted style when real data isn't available yet */
.ex-proof-card--placeholder .ex-proof-num { color: var(--ex-text-muted); }
.ex-proof-card--placeholder .ex-proof-num-suffix { color: var(--ex-text-subtle); }

/* ================================================================
   VERSION B NOTICE (dev only — remove before launch)
   ================================================================ */
.ex-proof-version-notice {
  margin-top: 32px;
  padding: 14px 20px;
  background: rgba(255,209,102,0.06);
  border: 1px solid rgba(255,209,102,0.22);
  border-radius: var(--ex-r-md);
  font-size: 0.78rem; color: var(--ex-gold);
  text-align: center; display: none; /* hidden by default — enable in dev */
}

/* ================================================================
   SCROLL REVEAL
   ================================================================ */
.ex-proof-header .ex-proof-eyebrow,
.ex-proof-header .ex-proof-h2,
.ex-proof-header .ex-proof-sub {
  opacity: 0; transform: translateY(18px);
  transition: opacity 0.6s var(--ex-ease-out), transform 0.6s var(--ex-ease-out);
}
.ex-proof-header .ex-proof-eyebrow { transition-delay: 0s; }
.ex-proof-header .ex-proof-h2      { transition-delay: 0.1s; }
.ex-proof-header .ex-proof-sub     { transition-delay: 0.18s; }
.ex-proof-header.is-visible .ex-proof-eyebrow,
.ex-proof-header.is-visible .ex-proof-h2,
.ex-proof-header.is-visible .ex-proof-sub { opacity: 1; transform: translateY(0); }

.ex-proof-card {
  opacity: 0; transform: translateY(22px);
}
.ex-proof-card:nth-child(1)  { transition-delay: 0.03s; }
.ex-proof-card:nth-child(2)  { transition-delay: 0.08s; }
.ex-proof-card:nth-child(3)  { transition-delay: 0.13s; }
.ex-proof-card:nth-child(4)  { transition-delay: 0.18s; }
.ex-proof-card:nth-child(5)  { transition-delay: 0.06s; }
.ex-proof-card:nth-child(6)  { transition-delay: 0.11s; }
.ex-proof-card:nth-child(7)  { transition-delay: 0.16s; }
.ex-proof-card:nth-child(8)  { transition-delay: 0.21s; }
.ex-proof-card:nth-child(9)  { transition-delay: 0.08s; }
.ex-proof-card:nth-child(10) { transition-delay: 0.13s; }
.ex-proof-card:nth-child(11) { transition-delay: 0.18s; }
.ex-proof-card:nth-child(12) { transition-delay: 0.23s; }
.ex-proof-card {
  transition: opacity 0.5s var(--ex-ease-out), transform 0.5s var(--ex-ease-out),
              border-color 0.28s var(--ex-ease), background 0.28s var(--ex-ease), box-shadow 0.28s var(--ex-ease);
}
.ex-proof-grid.is-visible .ex-proof-card { opacity: 1; transform: translateY(0); }

/* ================================================================
   RESPONSIVE
   ================================================================ */
@media (max-width: 1100px) { .ex-proof { padding: 100px 28px 110px; } .ex-proof-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 740px)  { .ex-proof { padding: 80px 20px 90px;  } .ex-proof-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px)  { .ex-proof-grid { grid-template-columns: 1fr; } }

@media (prefers-reduced-motion: reduce) {
  .ex-proof-eyebrow-dot { animation: none !important; }
  .ex-proof-header .ex-proof-eyebrow, .ex-proof-header .ex-proof-h2, .ex-proof-header .ex-proof-sub,
  .ex-proof-card { opacity: 1 !important; transform: none !important; transition: none !important; }
  .ex-proof-card:hover { transform: none !important; }
  .ex-proof-card:hover .ex-proof-card-icon { transform: none !important; }
}