/* ═══════════════════════════════════════════════════════
   CONTACT.CSS — Section 08
   Dark premium · 6 contact channels
═══════════════════════════════════════════════════════ */

/* ── Section ───────────────────────────────────────── */
.contact-section {
  background: #050505;
  position: relative;
  padding: clamp(80px, 12vw, 140px) 0 clamp(60px, 8vw, 100px);
  overflow: hidden;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
}

.contact-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 55%;
  background: radial-gradient(ellipse at top,
    rgba(65, 189, 254, 0.055) 0%,
    rgba(225, 17, 251, 0.035) 45%,
    transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.ct-bg-num {
  position: absolute;
  top: clamp(16px, 3vw, 48px);
  right: clamp(12px, 4vw, 64px);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(100px, 18vw, 220px);
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255, 255, 255, 0.025);
  pointer-events: none;
  user-select: none;
  z-index: 0;
}

/* ── Header ────────────────────────────────────────── */
.ct-header {
  position: relative;
  z-index: 1;
  margin-bottom: clamp(40px, 6vw, 64px);
}

.ct-section-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-blue);
  margin-bottom: var(--sp-4);
}

.ct-section-label::before {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--color-blue);
  display: block;
  flex-shrink: 0;
}

.ct-heading {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.2rem, 5.5vw, 4.5rem);
  letter-spacing: -0.03em;
  line-height: 1;
  color: var(--color-white);
  margin-bottom: var(--sp-4);
}

.ct-subheading {
  font-family: var(--font-body);
  font-size: clamp(var(--text-sm), 1.5vw, var(--text-lg));
  color: var(--color-text-secondary);
  max-width: 460px;
  line-height: 1.6;
}

/* ── Grid ───────────────────────────────────────────── */
.ct-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(12px, 2vw, 18px);
  position: relative;
  z-index: 1;
  max-width: 960px;
}

/* ── Button base ────────────────────────────────────── */
.ct-btn {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2vw, 20px);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  padding: clamp(18px, 2.5vw, 26px) clamp(18px, 2.5vw, 26px);
  text-decoration: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition:
    border-color var(--t-base),
    background var(--t-base),
    transform var(--t-base),
    box-shadow var(--t-base);
}

/* Top accent line — revealed on hover */
.ct-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  opacity: 0;
  transition: opacity var(--t-base);
}

.ct-btn:hover {
  transform: translateY(-3px);
}

.ct-btn:hover::before { opacity: 1; }

/* Platform accent colours */
.ct-whatsapp::before { background: linear-gradient(90deg, transparent, rgba(37, 211, 102, 0.85), transparent); }
.ct-telegram::before  { background: linear-gradient(90deg, transparent, rgba(0, 136, 204, 0.85), transparent); }
.ct-wechat::before    { background: linear-gradient(90deg, transparent, rgba(9, 187, 7, 0.85),   transparent); }
.ct-viber::before     { background: linear-gradient(90deg, transparent, rgba(115, 96, 242, 0.85), transparent); }
.ct-email::before     { background: var(--gradient-brand-h); }
.ct-linkedin::before  { background: linear-gradient(90deg, transparent, rgba(10, 102, 194, 0.85), transparent); }

.ct-whatsapp:hover { border-color: rgba(37, 211, 102, 0.28); background: rgba(37, 211, 102, 0.05); box-shadow: 0 16px 40px rgba(0,0,0,0.55), 0 0 32px rgba(37,211,102,0.06); }
.ct-telegram:hover  { border-color: rgba(0, 136, 204, 0.28);  background: rgba(0, 136, 204, 0.05);  box-shadow: 0 16px 40px rgba(0,0,0,0.55), 0 0 32px rgba(0,136,204,0.06); }
.ct-wechat:hover    { border-color: rgba(9, 187, 7, 0.28);    background: rgba(9, 187, 7, 0.05);    box-shadow: 0 16px 40px rgba(0,0,0,0.55), 0 0 32px rgba(9,187,7,0.06); }
.ct-viber:hover     { border-color: rgba(115, 96, 242, 0.28); background: rgba(115, 96, 242, 0.05); box-shadow: 0 16px 40px rgba(0,0,0,0.55), 0 0 32px rgba(115,96,242,0.06); }
.ct-email:hover     { border-color: rgba(65, 189, 254, 0.28); background: rgba(65, 189, 254, 0.05); box-shadow: 0 16px 40px rgba(0,0,0,0.55), 0 0 32px rgba(65,189,254,0.06); }
.ct-linkedin:hover  { border-color: rgba(10, 102, 194, 0.28); background: rgba(10, 102, 194, 0.05); box-shadow: 0 16px 40px rgba(0,0,0,0.55), 0 0 32px rgba(10,102,194,0.06); }

/* ── Icon wrap ──────────────────────────────────────── */
.ct-btn-icon {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background var(--t-base);
}

.ct-btn-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  padding: 8px;
  box-sizing: border-box;
}

.ct-whatsapp .ct-btn-icon { background: rgba(37, 211, 102, 0.1); color: #25D366; }
.ct-telegram  .ct-btn-icon { background: rgba(0, 136, 204, 0.1);  color: #0088cc; }
.ct-wechat    .ct-btn-icon { background: rgba(9, 187, 7, 0.1);    color: #09BB07; }
.ct-viber     .ct-btn-icon { background: rgba(115, 96, 242, 0.1); color: #7360F2; }
.ct-email     .ct-btn-icon { background: rgba(65, 189, 254, 0.1); color: var(--color-blue); }
.ct-linkedin  .ct-btn-icon { background: rgba(10, 102, 194, 0.1); color: #0A66C2; }

.ct-whatsapp:hover .ct-btn-icon { background: rgba(37, 211, 102, 0.18); }
.ct-telegram:hover  .ct-btn-icon { background: rgba(0, 136, 204, 0.18); }
.ct-wechat:hover    .ct-btn-icon { background: rgba(9, 187, 7, 0.18); }
.ct-viber:hover     .ct-btn-icon { background: rgba(115, 96, 242, 0.18); }
.ct-email:hover     .ct-btn-icon { background: rgba(65, 189, 254, 0.18); }
.ct-linkedin:hover  .ct-btn-icon { background: rgba(10, 102, 194, 0.18); }

.ct-btn-icon svg { width: 22px; height: 22px; }

/* ── Text ───────────────────────────────────────────── */
.ct-btn-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
  text-align: left;
}

.ct-btn-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  display: block;
}

.ct-btn-value {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(var(--text-sm), 1.5vw, var(--text-base));
  letter-spacing: -0.01em;
  color: var(--color-white);
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ── Arrow ──────────────────────────────────────────── */
.ct-btn-arrow {
  color: rgba(255, 255, 255, 0.18);
  font-size: 0.9rem;
  flex-shrink: 0;
  transition: color var(--t-fast), transform var(--t-fast);
}

.ct-btn:hover .ct-btn-arrow {
  color: rgba(255, 255, 255, 0.55);
  transform: translate(2px, -2px);
}

/* WeChat: no external arrow, shows copy hint instead */
.ct-wechat .ct-btn-arrow { display: none; }

.ct-copy-hint {
  font-family: var(--font-mono);
  font-size: var(--text-2xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(9, 187, 7, 0.55);
  flex-shrink: 0;
  opacity: 0;
  transition: opacity var(--t-fast);
}

.ct-wechat:hover .ct-copy-hint { opacity: 1; }

/* ── Responsive ─────────────────────────────────────── */
@media (max-width: 900px) {
  .ct-grid {
    grid-template-columns: repeat(2, 1fr);
    max-width: 640px;
  }
}

@media (max-width: 480px) {
  .ct-grid {
    grid-template-columns: 1fr;
  }
}

/* ── Resume button ──────────────────────────────────── */
.ct-resume::before  { background: var(--gradient-brand-h); }
.ct-resume .ct-btn-icon { background: rgba(65, 189, 254, 0.1); color: var(--color-blue); }
.ct-resume:hover         { border-color: rgba(65, 189, 254, 0.28); background: rgba(65, 189, 254, 0.05); box-shadow: 0 16px 40px rgba(0,0,0,0.55), 0 0 32px rgba(65,189,254,0.06); }
.ct-resume:hover .ct-btn-icon { background: rgba(65, 189, 254, 0.18); }

/* ── Reduced motion ─────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .ct-btn:hover { transform: none; }
}