/* ═══════════════════════════════════════
   BUTTONS
═══════════════════════════════════════ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 0.75em 1.75em;
  border-radius: var(--radius-full);
  font-size: var(--fs-sm);
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition:
    transform var(--ease-fast),
    box-shadow var(--ease-base),
    background var(--ease-fast),
    opacity var(--ease-fast);
  white-space: nowrap;
}

.btn--primary {
  background: var(--clr-cyan);
  color: #02020c;
  box-shadow: 0 0 0 rgba(0,229,255,0);
}
.btn--primary:hover {
  opacity: 1;
  transform: translateY(-2px);
  box-shadow: 0 4px 24px rgba(0,229,255,0.45);
  color: #02020c;
}

.btn--secondary {
  background: var(--clr-pink);
  color: #ffffff;
}
.btn--secondary:hover {
  opacity: 1;
  transform: translateY(-2px);
  box-shadow: 0 4px 24px rgba(240,0,110,0.45);
  color: #ffffff;
}

.btn--ghost {
  background: transparent;
  color: var(--text-primary);
  border: var(--border-neon);
}
.btn--ghost:hover {
  opacity: 1;
  background: var(--clr-cyan-dim);
  color: var(--clr-cyan);
  transform: translateY(-2px);
}

.btn--sm {
  padding: 0.55em 1.25em;
  font-size: var(--fs-xs);
}

.btn--lg {
  padding: 1em 2.25em;
  font-size: var(--fs-base);
}


/* ═══════════════════════════════════════
   BADGE / TAG
═══════════════════════════════════════ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 0.35em 0.9em;
  border-radius: var(--radius-full);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.badge--neon {
  background: var(--clr-cyan-dim);
  border: var(--border-neon);
  color: var(--clr-cyan);
}
.badge--neon::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--clr-cyan);
  box-shadow: 0 0 6px var(--clr-cyan-glow);
}

.badge--purple {
  background: var(--clr-purple-dim);
  border: 1px solid rgba(167,139,250,0.28);
  color: var(--clr-purple);
}

.badge--pink {
  background: var(--clr-pink-dim);
  border: 1px solid rgba(240,0,110,0.28);
  color: var(--clr-pink);
}


/* ═══════════════════════════════════════
   SERVICE CARD (index overview)
═══════════════════════════════════════ */
.service-card {
  background: var(--bg-surface);
  border: var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--sp-8);
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
  transition:
    border-color var(--ease-base),
    box-shadow var(--ease-base),
    transform var(--ease-base);
  transform-style: preserve-3d;
  perspective: 800px;
  cursor: default;
}

.service-card:hover {
  border-color: var(--clr-cyan-border);
  box-shadow: var(--glow-cyan), var(--shadow-card);
  transform: translateY(-6px) rotateX(2deg);
}

.service-card__icon {
  width: 56px; height: 56px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: var(--sp-2);
  position: relative;
}

.service-card__icon--cyan {
  background: var(--clr-cyan-dim);
  border: var(--border-neon);
  box-shadow: var(--glow-cyan);
}
.service-card__icon--purple {
  background: var(--clr-purple-dim);
  border: 1px solid rgba(167,139,250,0.28);
  box-shadow: var(--glow-purple);
}
.service-card__icon--pink {
  background: var(--clr-pink-dim);
  border: 1px solid rgba(240,0,110,0.28);
  box-shadow: var(--glow-pink);
}
.service-card__icon--green {
  background: rgba(57,255,20,0.08);
  border: 1px solid rgba(57,255,20,0.25);
  box-shadow: 0 0 24px rgba(57,255,20,0.15);
}

.service-card__title {
  font-size: var(--fs-xl);
  font-weight: 800;
  line-height: 1.2;
}

.service-card__desc {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  line-height: 1.7;
  flex-grow: 1;
}

.service-card__link {
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--clr-cyan);
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  transition: gap var(--ease-fast);
  margin-top: auto;
}
.service-card__link:hover { gap: var(--sp-3); }
.service-card__link::after { content: '→'; }


/* ═══════════════════════════════════════
   VALUE CARD (about page)
═══════════════════════════════════════ */
.value-card {
  background: var(--bg-surface);
  border: var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--sp-8);
  transition: border-color var(--ease-base), box-shadow var(--ease-base);
}
.value-card:hover {
  border-color: var(--clr-cyan-border);
  box-shadow: var(--glow-cyan);
}
.value-card__icon {
  font-size: 2rem;
  margin-bottom: var(--sp-4);
}
.value-card__title {
  font-size: var(--fs-xl);
  font-weight: 700;
  margin-bottom: var(--sp-3);
}
.value-card__desc {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  line-height: 1.7;
}


/* ═══════════════════════════════════════
   FORM (contact page)
═══════════════════════════════════════ */
.contact-form {
  background: var(--bg-surface);
  border: var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--sp-10);
}

.form-group {
  margin-bottom: var(--sp-6);
}

.form-label {
  display: block;
  font-size: var(--fs-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: var(--sp-2);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  background: var(--bg-elevated);
  border: var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.8em 1em;
  color: var(--text-primary);
  font-size: var(--fs-base);
  font-family: var(--font-sans);
  outline: none;
  transition: border-color var(--ease-fast), box-shadow var(--ease-fast);
}

.form-input::placeholder,
.form-textarea::placeholder { color: var(--text-muted); }

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--clr-cyan-border);
  box-shadow: 0 0 0 3px rgba(0,229,255,0.1);
}

.form-textarea {
  min-height: 130px;
  resize: vertical;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-4);
}


/* ═══════════════════════════════════════
   TECH STACK STRIP
═══════════════════════════════════════ */
.tech-strip {
  border-block: var(--border-subtle);
  padding-block: var(--sp-10);
  overflow: hidden;
  background: var(--bg-void);
}

.tech-strip__label {
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  text-align: center;
  margin-bottom: var(--sp-8);
}

.tech-strip__track {
  display: flex;
  gap: var(--sp-12);
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
}

.tech-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 0.45em 1.1em;
  background: var(--bg-surface);
  border: var(--border-subtle);
  border-radius: var(--radius-full);
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--text-secondary);
  transition: border-color var(--ease-fast), color var(--ease-fast);
  white-space: nowrap;
}
.tech-chip:hover {
  border-color: var(--clr-cyan-border);
  color: var(--clr-cyan);
}

/* ═══════════════════════════════════════
   SCROLL INDICATOR
═══════════════════════════════════════ */
.scroll-hint {
  position: absolute;
  bottom: var(--sp-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  z-index: 1;
  animation: fadeInUp 1.5s 1.5s both;
}

.scroll-hint__bar {
  width: 2px;
  height: 40px;
  background: linear-gradient(to bottom, var(--clr-cyan), transparent);
  border-radius: var(--radius-full);
  position: relative;
  overflow: hidden;
}
.scroll-hint__bar::after {
  content: '';
  position: absolute;
  top: -40px; left: 0;
  width: 100%; height: 40px;
  background: var(--clr-cyan);
  animation: scroll-bar 1.8s ease-in-out infinite;
}