/* ==========================================================================
   Components — buttons, cards, badges, inputs, accordion
   ========================================================================== */

/* ----- Buttons ----- */
.sv-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sv-space-2);
  padding: 0.875rem 1.75rem;
  font-family: var(--sv-font-display);
  font-size: var(--sv-fs-base);
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1;
  border-radius: var(--sv-radius-pill);
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition: all var(--sv-dur) var(--sv-ease-out);
  position: relative;
  isolation: isolate;
  border: 1px solid transparent;
  overflow: hidden;
}

.sv-btn svg { width: 18px; height: 18px; flex-shrink: 0; }

.sv-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s var(--sv-ease-out);
}

.sv-btn:hover::before {
  left: 100%;
}

.sv-btn--primary {
  background: var(--sv-gradient-brand);
  color: #fff;
  box-shadow: 0 8px 24px rgba(10, 132, 255, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.2);
}
.sv-btn--primary:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 12px 32px rgba(10, 132, 255, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.2);
  color: #fff;
}

.sv-btn--ghost {
  background: var(--sv-white);
  color: var(--sv-ink);
  border-color: var(--sv-line);
}
.sv-btn--ghost:hover {
  background: var(--sv-light-blue);
  border-color: var(--sv-primary);
  color: var(--sv-primary);
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 8px 24px rgba(10, 132, 255, 0.15);
}

.sv-btn--outline {
  background: var(--sv-white);
  color: var(--sv-ink);
  border-color: var(--sv-line);
}
.sv-btn--outline:hover {
  background: var(--sv-light-blue);
  border-color: var(--sv-primary);
  color: var(--sv-primary);
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 8px 24px rgba(13, 110, 253, 0.15);
}

.sv-btn--sm { padding: 0.625rem 1.25rem; font-size: var(--sv-fs-sm); }
.sv-btn--lg { padding: 1.125rem 2.25rem; font-size: var(--sv-fs-md); }
.sv-btn--full { width: 100%; }

.sv-btn .sv-btn__arrow {
  transition: transform var(--sv-dur) var(--sv-ease-out);
}
.sv-btn:hover .sv-btn__arrow { transform: translate(4px, -4px); }

/* ----- Badge ----- */
.sv-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sv-space-2);
  padding: 0.5rem 1rem;
  font-family: var(--sv-font-display);
  font-size: var(--sv-fs-xs);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--sv-primary-300);
  background: rgba(13, 110, 253, 0.1);
  border: 1px solid rgba(13, 110, 253, 0.25);
  border-radius: var(--sv-radius-pill);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}
.sv-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--sv-primary);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--sv-primary);
  animation: sv-pulse 2s var(--sv-ease-out) infinite;
}
.sv-badge--light {
  color: var(--sv-cyan);
  background: rgba(34, 211, 238, 0.08);
  border-color: rgba(34, 211, 238, 0.25);
}
.sv-badge--light::before { background: var(--sv-cyan); box-shadow: 0 0 8px var(--sv-cyan); }

@keyframes sv-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ----- Card ----- */
.sv-card {
  position: relative;
  background: var(--sv-card);
  border: 1px solid var(--sv-line);
  border-radius: var(--sv-radius-lg);
  padding: var(--sv-space-6);
  transition: all var(--sv-dur) var(--sv-ease-out);
  overflow: hidden;
  isolation: isolate;
}
.sv-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--sv-gradient-mesh);
  opacity: 0;
  transition: opacity var(--sv-dur-slow) var(--sv-ease-out);
  pointer-events: none;
  z-index: -1;
}
.sv-card:hover {
  background: var(--sv-card-hover);
  border-color: var(--sv-line-strong);
  transform: translateY(-6px) scale(1.02);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(13, 110, 253, 0.1);
}
.sv-card:hover::before { opacity: 0.4; }

.sv-card--glass {
  background: var(--sv-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-color: var(--sv-line-strong);
}

.sv-card--service {
  display: flex;
  flex-direction: column;
  gap: var(--sv-space-4);
}
.sv-card--service .sv-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: var(--sv-white);
  border-radius: var(--sv-radius);
  color: var(--sv-primary);
  box-shadow: 0 4px 12px rgba(10, 132, 255, 0.15);
  transition: transform var(--sv-dur) var(--sv-ease-spring);
}
.sv-card--service:hover .sv-card__icon {
  transform: scale(1.1) rotate(-8deg);
  box-shadow: 0 12px 32px rgba(10, 132, 255, 0.25);
}
.sv-card--service .sv-card__icon svg { width: 28px; height: 28px; }

.sv-card__title {
  font-family: var(--sv-font-display);
  font-size: var(--sv-fs-xl);
  font-weight: 600;
  color: var(--sv-ink-strong);
  letter-spacing: -0.01em;
}

.sv-card__desc {
  color: var(--sv-ink-muted);
  font-size: var(--sv-fs-base);
  line-height: 1.65;
}

.sv-card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--sv-space-2);
  margin-top: auto;
  color: var(--sv-primary-300);
  font-size: var(--sv-fs-sm);
  font-weight: 500;
  text-decoration: none;
  transition: gap var(--sv-dur) var(--sv-ease-out), color var(--sv-dur) var(--sv-ease-out);
}
.sv-card__link:hover {
  gap: var(--sv-space-3);
  color: var(--sv-cyan);
}
.sv-card__link svg { width: 14px; height: 14px; }

/* ----- Section header ----- */
.sv-section__head {
  max-width: 720px;
  margin: 0 auto var(--sv-space-12);
  text-align: center;
}
.sv-section__head--left { margin-inline: 0; text-align: left; }

.sv-section__eyebrow {
  display: inline-block;
  margin-bottom: var(--sv-space-4);
  font-family: var(--sv-font-display);
  font-size: var(--sv-fs-xs);
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--sv-primary-300);
}

.sv-section__title {
  font-size: clamp(2rem, 4vw, var(--sv-fs-4xl));
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.1;
  margin-bottom: var(--sv-space-4);
}

.sv-section__sub {
  font-size: var(--sv-fs-md);
  color: var(--sv-ink-muted);
  line-height: 1.7;
  max-width: 640px;
  margin-inline: auto;
}

.sv-section__head--left .sv-section__sub { margin-inline: 0; }

/* Mission/Vision section specific header colors */
.sv-section--mission-vision .sv-section__eyebrow {
  color: #2D8CFF;
}
.sv-section--mission-vision .sv-section__title {
  color: #111827;
}
.sv-section--mission-vision .sv-section__sub {
  color: #64748B;
}

/* Timeline section specific header colors */
.sv-section--timeline .sv-section__title {
  color: #111827;
}
.sv-section--timeline .sv-section__sub {
  color: #64748B;
}

/* ----- Inputs ----- */
.sv-field {
  display: flex;
  flex-direction: column;
  gap: var(--sv-space-2);
}

.sv-field__label {
  font-family: var(--sv-font-display);
  font-size: var(--sv-fs-sm);
  font-weight: 500;
  color: var(--sv-ink);
  letter-spacing: 0.01em;
}

.sv-field__label .required { color: var(--sv-cyan); }

.sv-input,
.sv-textarea,
.sv-select {
  width: 100%;
  padding: 0.875rem 1.125rem;
  background: var(--sv-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--sv-line);
  border-radius: var(--sv-radius);
  color: var(--sv-ink);
  font-size: var(--sv-fs-base);
  line-height: 1.5;
  transition: all var(--sv-dur) var(--sv-ease-out);
  font-family: var(--sv-font-body);
}

.sv-input:focus,
.sv-textarea:focus,
.sv-select:focus {
  outline: none;
  border-color: var(--sv-primary);
  background: var(--sv-card-hover);
  box-shadow: 0 0 0 4px rgba(13, 110, 253, 0.15);
}

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

.sv-select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%2394A3B8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><polyline points='6 9 12 15 18 9'/></svg>");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 18px;
  padding-right: 3rem;
}

.sv-field__error {
  font-size: var(--sv-fs-xs);
  color: #FCA5A5;
  display: none;
}
.sv-field--invalid .sv-field__error { display: block; }
.sv-field--invalid .sv-input,
.sv-field--invalid .sv-textarea,
.sv-field--invalid .sv-select {
  border-color: rgba(252, 165, 165, 0.5);
}

/* ----- Accordion ----- */
.sv-accordion {
  display: flex;
  flex-direction: column;
  gap: var(--sv-space-3);
}

.sv-accordion__item {
  background: var(--sv-white);
  border: 1px solid var(--sv-line);
  border-radius: var(--sv-radius);
  overflow: hidden;
  transition: all var(--sv-dur) var(--sv-ease-out);
}
.sv-accordion__item:hover {
  border-color: var(--sv-primary);
  background: var(--sv-card-hover);
}
.sv-accordion__item.is-open {
  background: var(--sv-card-hover);
  border-color: var(--sv-primary);
  box-shadow: 0 8px 32px rgba(10, 132, 255, 0.12);
}

.sv-accordion__trigger {
  display: flex;
  align-items: center;
  gap: var(--sv-space-4);
  width: 100%;
  padding: var(--sv-space-5) var(--sv-space-6);
  text-align: left;
  cursor: pointer;
  font-family: var(--sv-font-display);
  font-size: var(--sv-fs-md);
  font-weight: 500;
  color: var(--sv-ink-strong);
}

.sv-accordion__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  background: var(--sv-white);
  border-radius: var(--sv-radius-sm);
  color: var(--sv-primary);
  box-shadow: 0 4px 12px rgba(10, 132, 255, 0.15);
}
.sv-accordion__icon svg { width: 20px; height: 20px; }

.sv-accordion__title { flex: 1; }

.sv-accordion__chev {
  width: 20px;
  height: 20px;
  color: var(--sv-ink-muted);
  flex-shrink: 0;
  transition: transform var(--sv-dur) var(--sv-ease-out);
}
.sv-accordion__item.is-open .sv-accordion__chev {
  transform: rotate(180deg);
  color: var(--sv-primary);
}

.sv-accordion__content {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--sv-dur-slow) var(--sv-ease-out);
}
.sv-accordion__item.is-open .sv-accordion__content {
  grid-template-rows: 1fr;
}
.sv-accordion__content-inner {
  overflow: hidden;
}
.sv-accordion__body {
  padding: 0 var(--sv-space-6) var(--sv-space-5);
  margin-left: 56px;
  color: var(--sv-ink-muted);
  line-height: 1.7;
}

@media (max-width: 639px) {
  .sv-accordion__body { margin-left: 0; }
}

/* ----- Tech tags ----- */
.sv-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sv-space-2);
}

.sv-tag {
  display: inline-flex;
  align-items: center;
  padding: 0.375rem 0.75rem;
  font-family: var(--sv-font-display);
  font-size: var(--sv-fs-xs);
  font-weight: 500;
  color: var(--sv-primary-300);
  background: rgba(13, 110, 253, 0.1);
  border: 1px solid rgba(13, 110, 253, 0.2);
  border-radius: var(--sv-radius-pill);
  letter-spacing: 0.02em;
}

/* ----- Stars ----- */
.sv-stars {
  display: inline-flex;
  gap: 2px;
  color: #FFB84D;
}
.sv-stars svg { width: 18px; height: 18px; fill: currentColor; }