/* ==========================================================================
   Bharat AI Forge — Reusable UI Components (components.css)
   ========================================================================== */

/* Accessibility: Skip Link & Focus Indicators */
.skip-link {
  position: fixed;
  top: -100px;
  left: 1rem;
  z-index: 9999;
  padding: 0.75rem 1.25rem;
  background: var(--color-electric-cyan);
  color: var(--color-primary-dark);
  font-family: var(--font-heading);
  font-weight: 800;
  border-radius: var(--radius-sm);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 1rem;
  outline: 3px solid var(--color-accent-gold);
}

:focus-visible {
  outline: 2px solid var(--color-electric-cyan);
  outline-offset: 3px;
}

.section-light :focus-visible {
  outline: 2px solid var(--color-secondary-navy);
  outline-offset: 3px;
}

/* Layout Containers */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.section {
  position: relative;
  padding-block: var(--section-py);
}

.section-dark {
  background: var(--grad-dark-section);
  color: var(--color-text-on-dark);
}

.section-light {
  background-color: var(--color-light-bg);
  color: var(--color-text-dark);
}

/* Section Headers */
.section-header {
  max-width: 780px;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.section-header--center {
  margin-inline: auto;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.38rem 0.9rem;
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 1.1rem;
}

.section-dark .eyebrow {
  background: rgba(54, 217, 255, 0.1);
  border: 1px solid rgba(54, 217, 255, 0.28);
  color: var(--color-electric-cyan);
}

.section-light .eyebrow {
  background: rgba(16, 42, 67, 0.07);
  border: 1px solid rgba(16, 42, 67, 0.16);
  color: var(--color-secondary-navy);
}

.eyebrow-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-ai-teal);
  box-shadow: 0 0 8px var(--color-ai-teal);
}

.section-title {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -0.025em;
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: var(--text-lg);
  line-height: 1.65;
}

.section-dark .section-subtitle {
  color: var(--color-text-muted-dark);
}

.section-light .section-subtitle {
  color: var(--color-text-muted-light);
}

.text-gradient-cyan {
  background: linear-gradient(92deg, #36D9FF 0%, #22D3B6 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.text-gradient-gold {
  background: linear-gradient(92deg, #FFBE55 0%, #36D9FF 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.text-navy-accent {
  color: #0B557A;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.88rem 1.6rem;
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 800;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast), border-color var(--transition-fast);
  white-space: nowrap;
}

.btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.btn:hover svg {
  transform: translateX(3px);
}

.btn-primary {
  background: var(--grad-brand-primary);
  color: var(--color-primary-dark);
  box-shadow: 0 6px 22px rgba(54, 217, 255, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(54, 217, 255, 0.42);
}

.btn-secondary {
  background: rgba(16, 42, 67, 0.65);
  color: var(--color-white);
  border: 1px solid rgba(54, 217, 255, 0.35);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(54, 217, 255, 0.14);
  border-color: var(--color-electric-cyan);
  transform: translateY(-2px);
}

.btn-secondary-light {
  background: var(--color-secondary-navy);
  color: var(--color-white);
  border: 1px solid var(--color-secondary-navy);
}

.btn-secondary-light:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-light-sm);
}

.btn-outline-light {
  background: var(--color-white);
  color: var(--color-secondary-navy);
  border: 1px solid var(--color-light-border-strong);
}

.btn-outline-light:hover {
  border-color: var(--color-secondary-navy);
  background: var(--color-light-elevated);
}

.btn-sm {
  padding: 0.62rem 1.15rem;
  font-size: 0.78rem;
}

/* Cards */
.card-dark {
  background: var(--color-dark-card);
  border: 1px solid var(--color-dark-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-dark-sm);
  transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

.card-dark:hover {
  transform: translateY(-4px);
  border-color: var(--color-dark-border-strong);
  box-shadow: var(--shadow-dark-lg);
}

.card-light {
  background: var(--color-light-surface);
  border: 1px solid var(--color-light-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-light-sm);
  transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

.card-light:hover {
  transform: translateY(-4px);
  border-color: var(--color-secondary-navy);
  box-shadow: var(--shadow-light-lg);
}

/* Icon Badges */
.icon-box {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(54, 217, 255, 0.12);
  border: 1px solid rgba(54, 217, 255, 0.25);
  color: var(--color-electric-cyan);
  margin-bottom: 1.15rem;
  flex-shrink: 0;
}

.section-light .icon-box {
  background: rgba(16, 42, 67, 0.08);
  border: 1px solid rgba(16, 42, 67, 0.16);
  color: var(--color-secondary-navy);
}

.icon-box--teal {
  background: rgba(34, 211, 182, 0.12);
  border-color: rgba(34, 211, 182, 0.28);
  color: var(--color-ai-teal);
}

.icon-box--gold {
  background: rgba(255, 190, 85, 0.12);
  border-color: rgba(255, 190, 85, 0.3);
  color: var(--color-accent-gold);
}

/* Badges & Tags */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.28rem 0.7rem;
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  background: rgba(54, 217, 255, 0.1);
  color: var(--color-electric-cyan);
  border: 1px solid rgba(54, 217, 255, 0.22);
}

.section-light .tag {
  background: #E8F2FA;
  color: #0B4A6F;
  border: 1px solid #BFE0F5;
}

.tag--gold {
  background: rgba(255, 190, 85, 0.14) !important;
  color: #B45309 !important;
  border-color: rgba(245, 158, 11, 0.35) !important;
}

.section-dark .tag--gold {
  color: var(--color-accent-gold) !important;
}

/* Callout Banner */
.callout-banner {
  margin-top: 2.75rem;
  padding: 1.5rem 2rem;
  border-radius: var(--radius-lg);
  background: linear-gradient(90deg, rgba(16, 42, 67, 0.92) 0%, rgba(11, 29, 53, 0.95) 100%);
  border: 1px solid rgba(54, 217, 255, 0.32);
  border-left: 5px solid var(--color-accent-gold);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
  color: var(--color-white);
  box-shadow: var(--shadow-dark-sm);
}

.callout-banner__quote {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 700;
  line-height: 1.4;
}

.callout-banner__quote span {
  color: var(--color-accent-gold);
}

/* Modal Dialog */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(4, 12, 24, 0.82);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}

.modal-backdrop.is-open {
  opacity: 1;
  visibility: visible;
}

.modal-dialog {
  width: 100%;
  max-width: 720px;
  max-height: 90vh;
  overflow-y: auto;
  background: var(--color-primary-dark);
  border: 1px solid rgba(54, 217, 255, 0.35);
  border-radius: var(--radius-xl);
  padding: clamp(1.5rem, 3.5vw, 2.5rem);
  color: var(--color-text-on-dark);
  box-shadow: var(--shadow-dark-lg), 0 0 40px rgba(54, 217, 255, 0.14);
  transform: translateY(16px) scale(0.98);
  transition: transform var(--transition-base);
}

.modal-backdrop.is-open .modal-dialog {
  transform: translateY(0) scale(1);
}

.modal-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 1.15rem;
  border-bottom: 1px solid rgba(54, 217, 255, 0.16);
  margin-bottom: 1.35rem;
}

.modal-close {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: var(--color-text-muted-dark);
  transition: background var(--transition-fast), color var(--transition-fast);
  flex-shrink: 0;
}

.modal-close:hover {
  background: rgba(244, 63, 94, 0.18);
  color: var(--color-white);
  border-color: var(--color-error);
}

/* Floating CTA & Back to Top */
.floating-bar {
  position: fixed;
  bottom: 1.35rem;
  right: 1.35rem;
  z-index: 950;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
}

.floating-bar.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.floating-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.78rem 1.25rem;
  border-radius: var(--radius-full);
  background: var(--grad-brand-primary);
  color: var(--color-primary-dark);
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  box-shadow: 0 10px 28px rgba(7, 20, 38, 0.6), 0 0 20px rgba(54, 217, 255, 0.38);
}

.floating-cta:hover {
  transform: translateY(-2px);
}

.back-to-top {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-primary-dark);
  border: 1px solid rgba(54, 217, 255, 0.4);
  color: var(--color-electric-cyan);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 22px rgba(7, 20, 38, 0.5);
  transition: transform var(--transition-fast), background var(--transition-fast);
}

.back-to-top:hover {
  transform: translateY(-2px);
  background: var(--color-secondary-navy);
}