/* ═══════════════════════════════════════════════════════
   UltraSinergia — Brand Components
   ═══════════════════════════════════════════════════════ */

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  font-family: var(--font-heading);
  font-weight: var(--fw-bold);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  border-radius: var(--radius-md);
  transition: all var(--duration-normal) var(--ease-out-expo);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
  cursor: pointer;
}

.btn-md {
  padding: 0.875rem 2rem;
  font-size: var(--fs-small);
}

.btn-lg {
  padding: 1.1rem 2.5rem;
  font-size: var(--fs-body);
}

.btn-sm {
  padding: 0.625rem 1.5rem;
  font-size: var(--fs-xs);
}

/* Primary: Cyan to Azure Brand Gradient Glow */
.btn-primary {
  background: var(--gradient-brand);
  color: #040c16;
  font-weight: var(--fw-black);
  box-shadow: 0 0 25px rgba(111, 224, 208, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-primary:hover {
  box-shadow: 0 0 45px rgba(111, 224, 208, 0.55), 0 0 80px rgba(0, 136, 224, 0.25);
  transform: translateY(-2px);
  filter: brightness(1.08);
}

.btn-primary:active {
  transform: translateY(0);
}

/* Outline: Glass with subtle cyan border */
.btn-outline {
  background: rgba(13, 35, 56, 0.4);
  border: 1px solid var(--border-light);
  color: var(--text-primary);
  backdrop-filter: blur(10px);
}

.btn-outline:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  box-shadow: var(--shadow-glow-cyan);
  background: var(--accent-cyan-dim);
  transform: translateY(-2px);
}

/* Ghost */
.btn-ghost {
  background: transparent;
  color: var(--accent-cyan);
  padding: 0.625rem 0;
}

.btn-ghost::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--gradient-brand);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--duration-normal) var(--ease-out-expo);
}

.btn-ghost:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* ── Cards ── */
.card {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  position: relative;
  overflow: hidden;
  transition: all var(--duration-slow) var(--ease-out-expo);
}

.card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, transparent 40%, var(--accent-cyan-dim) 100%);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask-composite: exclude;
  -webkit-mask-composite: xor;
  opacity: 0;
  transition: opacity var(--duration-slow) var(--ease-out-expo);
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow-cyan);
}

.card:hover::before {
  opacity: 1;
}

/* Card with image */
.card-image {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-xl);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  transition: all var(--duration-slow) var(--ease-out-expo);
}

.card-image:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow-cyan);
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.2s var(--ease-out-expo);
}

.card-image:hover img {
  transform: scale(1.08);
}

.card-image .card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 20%, rgba(4, 12, 22, 0.92) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-8);
  transition: background var(--duration-slow);
}

.card-image:hover .card-overlay {
  background: linear-gradient(180deg, transparent 5%, rgba(4, 12, 22, 0.96) 100%);
}

/* Service card */
.service-card {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-10);
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  transition: all var(--duration-slow) var(--ease-out-expo);
  position: relative;
  overflow: hidden;
  min-height: 380px;
}

.service-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-brand);
  opacity: 0;
  transition: opacity var(--duration-normal);
}

.service-card:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow-cyan);
  transform: translateY(-6px);
}

.service-card:hover::after {
  opacity: 1;
}

.service-card .icon-wrapper {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: var(--accent-cyan-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
  transition: all var(--duration-normal);
}

.service-card:hover .icon-wrapper {
  background: var(--gradient-brand);
  color: #040c16;
  box-shadow: 0 0 25px rgba(111, 224, 208, 0.45);
}

/* Stat card */
.stat-card {
  text-align: center;
  padding: var(--space-10) var(--space-6);
  border-radius: var(--radius-xl);
  background: var(--bg-card);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  border: 1px solid var(--border-subtle);
  transition: all var(--duration-slow) var(--ease-out-expo);
}

.stat-card:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow-cyan);
  transform: translateY(-3px);
}

.stat-card .stat-number {
  font-family: var(--font-heading);
  font-size: clamp(3rem, 5vw, 4.5rem);
  font-weight: var(--fw-black);
  line-height: 1;
  margin-bottom: var(--space-3);
}

.stat-card .stat-label {
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  letter-spacing: var(--ls-ultra);
  text-transform: uppercase;
  color: var(--text-secondary);
}

/* ── Form elements ── */
.input-field {
  width: 100%;
  padding: 1rem 1.25rem;
  background: rgba(8, 26, 42, 0.6);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: var(--fs-body);
  transition: all var(--duration-normal);
}

.input-field::placeholder {
  color: var(--text-tertiary);
}

.input-field:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px rgba(111, 224, 208, 0.15), 0 0 20px rgba(111, 224, 208, 0.12);
  background: rgba(111, 224, 208, 0.03);
}

textarea.input-field {
  resize: vertical;
  min-height: 140px;
}

.form-label {
  display: block;
  font-family: var(--font-heading);
  font-size: var(--fs-label);
  font-weight: var(--fw-bold);
  letter-spacing: var(--ls-ultra);
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: var(--space-2);
}

/* ── Badge ── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  background: var(--accent-cyan-dim);
  color: var(--accent-cyan);
  border: 1px solid rgba(111, 224, 208, 0.25);
}

.badge-blue,
.badge-magenta {
  background: var(--accent-blue-dim);
  color: #5bbaff;
  border-color: rgba(0, 136, 224, 0.3);
}

.badge-silver {
  background: var(--accent-silver-dim);
  color: var(--accent-silver);
  border-color: rgba(219, 227, 236, 0.2);
}

/* ── Divider ── */
.divider {
  width: 60px;
  height: 3px;
  background: var(--gradient-brand);
  border-radius: var(--radius-full);
  border: none;
}

/* ── Icon circle ── */
.icon-circle {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: var(--accent-cyan-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
  border: 1px solid rgba(111, 224, 208, 0.15);
  flex-shrink: 0;
}