/* ════════════════════════════════════════════════════════════
   ACER CHESS ACADEMY — components.css
   Buttons · Service Cards · Testimonials · Forms
   ════════════════════════════════════════════════════════════ */

/* ── BUTTONS ──────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.8125rem 1.75rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition:
    background var(--dur-fast),
    color var(--dur-fast),
    border-color var(--dur-fast),
    transform var(--dur-fast),
    box-shadow var(--dur-med) var(--ease-out-expo);
  position: relative;
  overflow: hidden;
  text-decoration: none;
  white-space: nowrap;
  border: 1.5px solid transparent;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.08);
  opacity: 0;
  transition: opacity var(--dur-fast);
}
.btn:hover::before  { opacity: 1; }
.btn:active         { transform: scale(0.98); }

/* Primary */
.btn--primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  box-shadow: 0 4px 16px rgba(86, 61, 45, 0.25);
}
.btn--primary:hover {
  background: var(--accent-light);
  border-color: var(--accent-light);
  box-shadow: 0 8px 28px rgba(86, 61, 45, 0.35);
  transform: translateY(-2px);
}

/* Ghost */
.btn--ghost {
  background: transparent;
  color: var(--accent);
  border-color: var(--border-strong);
}
.btn--ghost:hover {
  border-color: var(--accent);
  background: rgba(86, 61, 45, 0.05);
  transform: translateY(-2px);
}

/* Full width */
.btn--full { width: 100%; }

/* ── SERVICES SECTION ─────────────────────────────────────── */
.services {
  background: var(--bg);
  position: relative;
  overflow: hidden;
}

/* Decorative background element */
.services::before {
  content: '♛';
  position: absolute;
  right: -2rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: clamp(16rem, 30vw, 28rem);
  color: var(--accent);
  opacity: 0.025;
  line-height: 1;
  pointer-events: none;
  user-select: none;
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
  gap: 1.25rem;
  position: relative;
  z-index: 1;
}

/* ── SERVICE CARD ─────────────────────────────────────────── */
.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: clamp(1.5rem, 2.5vw, 2.25rem);
  position: relative;
  overflow: hidden;
  transition:
    transform var(--dur-med) var(--ease-out-expo),
    box-shadow var(--dur-med) var(--ease-out-expo),
    border-color var(--dur-med);
  cursor: default;
}

/* Hover shimmer line */
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-slow) var(--ease-out-expo);
}
.service-card:hover::before {
  transform: scaleX(1);
}
.service-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 16px 48px rgba(86, 61, 45, 0.12);
  border-color: var(--border-strong);
}

.service-card__icon {
  font-size: 2.25rem;
  color: var(--accent);
  margin-bottom: 1.25rem;
  display: block;
  transition: transform var(--dur-med) var(--ease-out-expo);
  line-height: 1;
}
.service-card:hover .service-card__icon {
  transform: scale(1.1) rotate(-5deg);
}

.service-card__title {
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 0.625rem;
  letter-spacing: -0.01em;
}

.service-card__desc {
  font-size: 0.875rem;
  color: var(--ink-3);
  line-height: 1.7;
}

.service-card__tag {
  display: inline-block;
  margin-top: 1rem;
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(86, 61, 45, 0.08);
  border: 1px solid rgba(86, 61, 45, 0.15);
  padding: 0.3rem 0.75rem;
  border-radius: 99px;
}

/* Staggered reveal delay via CSS custom property */
.service-card { transition-delay: calc(var(--i) * 0.06s); }

/* ── TESTIMONIALS ─────────────────────────────────────────── */
.testimonials {
  background: var(--bg-warm);
  position: relative;
  overflow: hidden;
}

/* Decorative element */
.testimonials::after {
  content: '"';
  position: absolute;
  left: -0.5rem;
  top: 4rem;
  font-family: var(--font-display);
  font-size: clamp(14rem, 25vw, 22rem);
  color: var(--accent);
  opacity: 0.05;
  line-height: 1;
  pointer-events: none;
  user-select: none;
}

.testimonials__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: 1.25rem;
  position: relative;
  z-index: 1;
}

/* ── TESTIMONIAL CARD ─────────────────────────────────────── */
.testi-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: clamp(1.5rem, 2.5vw, 2.25rem);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition:
    transform var(--dur-med) var(--ease-out-expo),
    box-shadow var(--dur-med) var(--ease-out-expo);
  position: relative;
}
.testi-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(86, 61, 45, 0.1);
}

.testi-card__stars {
  color: var(--accent);
  font-size: 0.875rem;
  letter-spacing: 0.1em;
}

.testi-card__quote {
  font-family: var(--font-display);
  font-size: clamp(0.95rem, 1.2vw, 1.0625rem);
  font-style: italic;
  color: var(--ink-2);
  line-height: 1.7;
  flex-grow: 1;
}

.testi-card__author {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.testi-card__avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  flex-shrink: 0;
}

.testi-card__info {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}
.testi-card__info strong {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--ink);
}
.testi-card__info span {
  font-size: 0.72rem;
  color: var(--ink-mute);
  letter-spacing: 0.06em;
}

/* ── FORMS ────────────────────────────────────────────────── */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-label {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.form-input {
  width: 100%;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 300;
  color: var(--ink);
  background: var(--bg-warm);
  border: 1.5px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 0.875rem 1.125rem;
  outline: none;
  transition:
    border-color var(--dur-fast),
    box-shadow var(--dur-fast),
    background var(--dur-fast);
  appearance: none;
  resize: none;
}
.form-input::placeholder {
  color: var(--ink-mute);
}
.form-input:focus {
  border-color: var(--accent);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(86, 61, 45, 0.1);
}
.form-input.is-error {
  border-color: #c0392b;
  box-shadow: 0 0 0 3px rgba(192, 57, 43, 0.1);
}

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

.form-success {
  font-size: 0.875rem;
  color: #2d7a4f;
  background: rgba(45, 122, 79, 0.08);
  border: 1px solid rgba(45, 122, 79, 0.2);
  border-radius: var(--radius-sm);
  padding: 0.875rem 1.125rem;
  text-align: center;
  font-weight: 500;
}

/* ── CUSTOM CURSOR ────────────────────────────────────────── */
@media (pointer: fine) {
  body { cursor: none; }

  .cursor {
    position: fixed;
    top: 0; left: 0;
    pointer-events: none;
    z-index: 9999;
  }

  .cursor__dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    position: absolute;
    transform: translate(-50%, -50%);
    transition: transform 0.1s, width 0.2s, height 0.2s, background 0.2s;
  }

  .cursor__ring {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1.5px solid var(--accent);
    position: absolute;
    transform: translate(-50%, -50%);
    opacity: 0.5;
    transition: transform 0.15s var(--ease-out-expo), width 0.3s, height 0.3s, opacity 0.3s, border-color 0.2s;
  }

  body:has(.player:hover) .cursor__ring,
  body:has(a:hover) .cursor__ring,
  body:has(button:hover) .cursor__ring {
    width: 56px;
    height: 56px;
    opacity: 0.25;
    border-color: var(--accent-light);
  }
}