/* ============================================================
   COMPONENTS — Buttons, pills, cards, tags, forms, badges.
   ============================================================ */

/* ---- Buttons ---- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: 0.95rem 1.8rem;
  border-radius: var(--r-pill);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: -0.01em;
  overflow: hidden;
  transition: transform var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease),
    border-color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
  will-change: transform;
}
.btn svg {
  width: 18px;
  height: 18px;
  transition: transform var(--t-fast) var(--ease);
}
.btn:hover svg {
  transform: translateX(4px);
}

.btn--primary {
  background: var(--grad-primary);
  color: #fff;
  box-shadow: 0 10px 30px -10px rgba(59, 130, 246, 0.7);
}
.btn--primary:hover {
  box-shadow: 0 16px 44px -10px rgba(59, 130, 246, 0.9);
}

.btn--ghost {
  background: var(--glass);
  border: 1px solid var(--border-strong);
  color: var(--text);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.btn--ghost:hover {
  border-color: var(--primary);
  background: rgba(59, 130, 246, 0.1);
}

.btn--large {
  padding: 1.1rem 2.2rem;
  font-size: 1.05rem;
}

/* Ripple element injected by JS */
.ripple {
  position: absolute;
  border-radius: 50%;
  transform: scale(0);
  background: rgba(255, 255, 255, 0.35);
  pointer-events: none;
  animation: ripple 0.6s var(--ease-out);
}

/* ---- Status pill ---- */
.pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.5rem 0.95rem;
  border-radius: var(--r-pill);
  border: 1px solid var(--border-strong);
  background: var(--glass);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.pill .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #2ecc71;
  box-shadow: 0 0 0 0 rgba(46, 204, 113, 0.6);
  animation: pulse 2.2s var(--ease-in-out) infinite;
}

/* ---- Tags ---- */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.7rem;
  border-radius: var(--r-pill);
  border: 1px solid var(--border);
  background: var(--glass);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--text-secondary);
}

/* ============================================================
   GLASS CARD — base surface used across the site.
   ============================================================ */
.card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: var(--space-6);
  overflow: hidden;
  transition: transform var(--t-med) var(--ease), border-color var(--t-med) var(--ease),
    box-shadow var(--t-med) var(--ease);
  will-change: transform;
}
.card::before {
  /* glass shine sweep */
  content: "";
  position: absolute;
  top: 0;
  left: -60%;
  width: 50%;
  height: 100%;
  background: linear-gradient(
    100deg,
    transparent,
    rgba(255, 255, 255, 0.06),
    transparent
  );
  transform: skewX(-18deg);
  transition: left var(--t-slow) var(--ease);
  pointer-events: none;
}
.card:hover {
  transform: translateY(-6px);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-soft);
}
.card:hover::before {
  left: 130%;
}

/* Glow border accent variant */
.card--glow:hover {
  border-color: var(--primary);
  box-shadow: 0 20px 50px -20px rgba(59, 130, 246, 0.55);
}

/* ============================================================
   PROJECT / MEDIA placeholder visuals (gradient + inline svg)
   ============================================================ */
.media {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--surface-2);
}
.media__art {
  position: absolute;
  inset: 0;
  transition: transform var(--t-slow) var(--ease);
  will-change: transform;
}
.card:hover .media__art,
.project-card:hover .media__art {
  transform: scale(1.07);
}
/* gradient variants for placeholder art */
.art-1 {
  background: radial-gradient(120% 120% at 0% 0%, #182a66, transparent 60%),
    linear-gradient(135deg, #3b82f6, #00e5ff);
}
.art-2 {
  background: radial-gradient(120% 120% at 100% 0%, #16265e, transparent 60%),
    linear-gradient(135deg, #2563eb, #3b82f6);
}
.art-3 {
  background: radial-gradient(120% 120% at 50% 100%, #0b3a44, transparent 60%),
    linear-gradient(135deg, #00e5ff, #3b82f6);
}
.art-4 {
  background: radial-gradient(120% 120% at 0% 100%, #4a1f37, transparent 60%),
    linear-gradient(135deg, #ff63b8, #00e5ff);
}
.art-5 {
  background: radial-gradient(120% 120% at 100% 100%, #102b52, transparent 60%),
    linear-gradient(135deg, #00e5ff, #2563eb);
}
.art-6 {
  background: radial-gradient(120% 120% at 50% 0%, #5a3a12, transparent 60%),
    linear-gradient(135deg, #ffb347, #ff6b6b);
}
/* real project image layered over the gradient fallback.
   If it fails to load (offline / broken URL) JS removes it via onerror,
   leaving the themed gradient + glyph underneath. */
.media__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  z-index: 2;
  transition: transform var(--t-slow) var(--ease);
  will-change: transform;
}
.card:hover .media__img,
.project-card:hover .media__img,
.featured-item:hover .media__img {
  transform: scale(1.07);
}
/* faint grid + glyph overlay on media art */
.media__grid {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.12) 1px, transparent 1px);
  background-size: 40px 40px;
  mix-blend-mode: overlay;
  opacity: 0.5;
}
.media__glyph {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  letter-spacing: -0.05em;
  color: rgba(255, 255, 255, 0.85);
  text-shadow: 0 6px 30px rgba(0, 0, 0, 0.3);
  mix-blend-mode: overlay;
}

/* ============================================================
   FORMS — glass inputs with floating labels.
   ============================================================ */
.form {
  display: grid;
  gap: var(--space-6);
}
.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
}
.field {
  position: relative;
}
.field input,
.field textarea {
  width: 100%;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 1.5rem 1.1rem 0.7rem;
  color: var(--text);
  transition: border-color var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease),
    background var(--t-fast) var(--ease);
  outline: none;
}
.field textarea {
  resize: vertical;
  min-height: 150px;
  padding-top: 1.7rem;
}
.field label {
  position: absolute;
  left: 1.15rem;
  top: 1.1rem;
  color: var(--text-tertiary);
  pointer-events: none;
  transition: transform var(--t-fast) var(--ease), color var(--t-fast) var(--ease),
    font-size var(--t-fast) var(--ease);
}
.field input:focus,
.field textarea:focus {
  border-color: var(--primary);
  background: rgba(59, 130, 246, 0.06);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.12);
}
.field input:focus + label,
.field input:not(:placeholder-shown) + label,
.field textarea:focus + label,
.field textarea:not(:placeholder-shown) + label {
  transform: translateY(-0.7rem);
  font-size: 0.72rem;
  color: var(--accent);
}
.field__error {
  display: block;
  margin-top: var(--space-2);
  font-size: 0.78rem;
  color: #ff6b6b;
  min-height: 1em;
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity var(--t-fast) var(--ease), transform var(--t-fast) var(--ease);
}
.field.invalid input,
.field.invalid textarea {
  border-color: #ff6b6b;
}
.field.invalid .field__error {
  opacity: 1;
  transform: translateY(0);
}

.form__status {
  font-size: 0.9rem;
  color: var(--accent);
  min-height: 1.2em;
}

@media (max-width: 720px) {
  .form__row {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   STAT counter block
   ============================================================ */
.stat {
  text-align: left;
}
.stat__num {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.stat__label {
  margin-top: var(--space-2);
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* ============================================================
   MARQUEE (tech logos / keywords)
   ============================================================ */
.marquee {
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}
.marquee__track {
  display: flex;
  gap: var(--space-7);
  width: max-content;
  animation: marquee 28s linear infinite;
}
.marquee__track span {
  font-size: clamp(1.2rem, 2.4vw, 1.9rem);
  font-weight: 700;
  color: var(--text-tertiary);
  letter-spacing: -0.02em;
  white-space: nowrap;
}
.marquee:hover .marquee__track {
  animation-play-state: paused;
}