/* ============================================================================
 * SEVA Innovations — modern design system
 * ============================================================================
 * Lightweight, build-step-free design tokens + utility classes that sit on top
 * of Bootstrap 5 and (optionally) Tailwind via CDN. The goal is a calm, fluid,
 * tech-forward look that holds together across pages: no abrupt section size
 * changes, restrained motion, and a consistent navy/cyan palette.
 * ----------------------------------------------------------------------------
 */

:root {
  /* Brand palette — navy primary with cyan accent for a serious tech feel */
  --seva-ink: #0f172a;          /* slate-900    */
  --seva-ink-soft: #334155;     /* slate-700    */
  --seva-muted: #64748b;        /* slate-500    */
  --seva-line: #e2e8f0;         /* slate-200    */
  --seva-surface: #f8fafc;      /* slate-50     */
  --seva-navy: #0a1f44;         /* hero base    */
  --seva-navy-2: #112a66;       /* hero accent  */
  --seva-blue: #2563eb;         /* primary CTA  */
  --seva-blue-strong: #1d4ed8;
  --seva-cyan: #38bdf8;         /* tech accent  */

  /* Fluid type scale — capped so headings never feel startling */
  --seva-display: clamp(2.25rem, 1.6rem + 2.6vw, 3.75rem);
  --seva-h2:      clamp(1.625rem, 1.25rem + 1.4vw, 2.25rem);
  --seva-eyebrow: 0.75rem;

  /* Section rhythm — same across every page so transitions are smooth */
  --seva-section-y: clamp(3.5rem, 6vw, 6rem);

  /* Easing — used everywhere for a single, consistent motion language */
  --seva-ease: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ---------------------------------------------------------------------------
 * Body baseline
 * ------------------------------------------------------------------------- */
body.font-inter,
body.seva-modern {
  color: var(--seva-ink);
  background-color: #ffffff;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* ---------------------------------------------------------------------------
 * Section rhythm utilities
 * Use .seva-section on every <section> so vertical spacing stays consistent
 * and hero -> next-section transitions feel intentional, not abrupt.
 * ------------------------------------------------------------------------- */
.seva-section {
  padding-block: var(--seva-section-y);
}

.seva-section--tight { padding-block: calc(var(--seva-section-y) * 0.6); }
.seva-section--alt   { background: var(--seva-surface); }
.seva-section--bordered {
  border-top: 1px solid var(--seva-line);
}

/* ---------------------------------------------------------------------------
 * Hero — single, fluid pattern reused on every page
 *
 * Replaces the page-specific `.hero-service`, `.hero-about`, `.hero-section`
 * rules that used 60–80vh + a generic purple gradient. The new hero is sized
 * by content + clamp() so it never jumps from a giant block to a tiny one
 * across breakpoints, and its background blends into the next section.
 * ------------------------------------------------------------------------- */
.seva-hero {
  position: relative;
  isolation: isolate;
  color: #ffffff;
  background:
    /* Soft top highlight so the seam against the white navbar reads as a
       gentle tonal transition rather than a hard color edge. */
    linear-gradient(to bottom, rgba(255, 255, 255, 0.10) 0, rgba(255, 255, 255, 0) 96px),
    radial-gradient(60% 80% at 75% 20%, rgba(56, 189, 248, 0.22), transparent 70%),
    radial-gradient(55% 70% at 18% 85%, rgba(99, 102, 241, 0.18), transparent 70%),
    linear-gradient(135deg, var(--seva-navy) 0%, var(--seva-navy-2) 100%);
  padding-block: clamp(4rem, 8vw, 7rem);
  overflow: hidden;
}

/* Subtle dotted grid overlay for tech texture, no extra HTTP request */
.seva-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    radial-gradient(rgba(255, 255, 255, 0.07) 1px, transparent 1px);
  background-size: 22px 22px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.9), rgba(0, 0, 0, 0.0) 90%);
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.9), rgba(0, 0, 0, 0.0) 90%);
  pointer-events: none;
}

/* Soft fade at the bottom of the hero so the next section blends in */
.seva-hero::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 5rem;
  background: linear-gradient(to bottom, transparent, #ffffff);
  pointer-events: none;
  z-index: -1;
}

.seva-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--seva-eyebrow);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: rgba(186, 230, 253, 0.95);
  margin-bottom: 1.25rem;
}

.seva-hero__eyebrow::before {
  content: '';
  width: 1.75rem;
  height: 1px;
  background: currentColor;
  display: inline-block;
  opacity: 0.7;
}

.seva-hero__title {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.08;
  font-size: var(--seva-display);
  margin: 0 0 1.25rem;
}

.seva-hero__lead {
  font-size: clamp(1rem, 0.9rem + 0.4vw, 1.125rem);
  line-height: 1.65;
  color: rgba(226, 232, 240, 0.92);
  max-width: 46rem;
  margin: 0 auto 2rem;
}

/* ---------------------------------------------------------------------------
 * Buttons — softer than the old uppercase rounded-pill
 * ------------------------------------------------------------------------- */
.seva-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.4rem;
  border-radius: 9999px;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  border: 1px solid transparent;
  transition: transform 0.25s var(--seva-ease),
              background-color 0.25s var(--seva-ease),
              border-color 0.25s var(--seva-ease),
              color 0.25s var(--seva-ease),
              box-shadow 0.25s var(--seva-ease);
  text-decoration: none;
  min-height: 44px;
}

.seva-btn--primary {
  background: #ffffff;
  color: var(--seva-navy);
  box-shadow: 0 1px 0 rgba(15, 23, 42, 0.04), 0 6px 18px -8px rgba(15, 23, 42, 0.35);
}
.seva-btn--primary:hover {
  background: var(--seva-cyan);
  color: var(--seva-navy);
}

.seva-btn--ghost {
  background: transparent;
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.4);
}
.seva-btn--ghost:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.7);
  color: #ffffff;
}

.seva-btn--solid {
  background: var(--seva-blue);
  color: #ffffff;
}
.seva-btn--solid:hover {
  background: var(--seva-blue-strong);
  color: #ffffff;
}

.seva-btn .seva-arrow {
  transition: transform 0.25s var(--seva-ease);
}
.seva-btn:hover .seva-arrow {
  transform: translateX(3px);
}

/* ---------------------------------------------------------------------------
 * Eyebrow label for non-hero sections (keeps the visual rhythm consistent)
 * ------------------------------------------------------------------------- */
.seva-eyebrow {
  display: inline-block;
  font-size: var(--seva-eyebrow);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: var(--seva-blue);
}

.seva-section-title {
  font-weight: 700;
  letter-spacing: -0.015em;
  font-size: var(--seva-h2);
  line-height: 1.15;
  margin-top: 0.5rem;
  margin-bottom: 1rem;
}

.seva-section-lead {
  color: var(--seva-muted);
  max-width: 42rem;
  margin: 0 auto;
  font-size: 1.0625rem;
  line-height: 1.6;
}

/* ---------------------------------------------------------------------------
 * Cards — modern Doota-style
 * ------------------------------------------------------------------------- */
.seva-card {
  display: flex;
  flex-direction: column;
  background: #ffffff;
  border: 1px solid var(--seva-line);
  border-radius: 1rem;
  overflow: hidden;
  transition: transform 0.4s var(--seva-ease),
              box-shadow 0.4s var(--seva-ease),
              border-color 0.4s var(--seva-ease);
  height: 100%;
}
.seva-card:hover {
  transform: translateY(-4px);
  border-color: #cbd5e1;
  box-shadow: 0 18px 40px -22px rgba(15, 23, 42, 0.25);
}

.seva-card__media {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--seva-surface);
}
.seva-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s var(--seva-ease);
}
.seva-card:hover .seva-card__media img {
  transform: scale(1.04);
}

.seva-card__body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  flex: 1;
}

.seva-card__eyebrow {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--seva-blue);
}

.seva-card__title {
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--seva-ink);
}

.seva-card__copy {
  color: var(--seva-muted);
  font-size: 0.9375rem;
  line-height: 1.55;
  margin: 0;
}

.seva-card__cta {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--seva-navy);
  text-decoration: none;
}
.seva-card__cta .seva-arrow {
  transition: transform 0.25s var(--seva-ease);
}
.seva-card:hover .seva-card__cta .seva-arrow {
  transform: translateX(3px);
}

/* Compact icon card for industries / values blocks */
.seva-icon-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.85rem;
  padding: 1.5rem;
  background: #ffffff;
  border: 1px solid var(--seva-line);
  border-radius: 1rem;
  height: 100%;
  transition: transform 0.4s var(--seva-ease),
              border-color 0.4s var(--seva-ease),
              box-shadow 0.4s var(--seva-ease);
}
.seva-icon-card:hover {
  transform: translateY(-4px);
  border-color: #cbd5e1;
  box-shadow: 0 14px 32px -20px rgba(15, 23, 42, 0.25);
}
.seva-icon-card__icon {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 0.75rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.12), rgba(56, 189, 248, 0.18));
  color: var(--seva-blue);
  font-size: 1.1rem;
}
.seva-icon-card__title {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.005em;
  margin: 0;
  color: var(--seva-ink);
}
.seva-icon-card__copy {
  font-size: 0.9rem;
  color: var(--seva-muted);
  margin: 0;
  line-height: 1.5;
}

/* ---------------------------------------------------------------------------
 * Stats strip — small, dense, visually anchors the hero -> body transition
 * ------------------------------------------------------------------------- */
.seva-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
  border-block: 1px solid var(--seva-line);
  padding-block: 2rem;
}
@media (min-width: 768px) {
  .seva-stats { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}
.seva-stats__value {
  font-size: clamp(1.75rem, 1.4rem + 0.8vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--seva-ink);
  line-height: 1.05;
}
.seva-stats__label {
  margin-top: 0.35rem;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--seva-muted);
  font-weight: 600;
}

/* ---------------------------------------------------------------------------
 * Scroll reveal — opt-in via [data-seva-reveal] attribute
 * Uses opacity + transform only, never blocks layout, respects reduced motion
 * ------------------------------------------------------------------------- */
[data-seva-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition:
    opacity 0.7s var(--seva-ease),
    transform 0.7s var(--seva-ease);
  will-change: opacity, transform;
}
[data-seva-reveal].seva-revealed {
  opacity: 1;
  transform: none;
}
[data-seva-reveal][data-seva-delay="1"] { transition-delay: 80ms; }
[data-seva-reveal][data-seva-delay="2"] { transition-delay: 160ms; }
[data-seva-reveal][data-seva-delay="3"] { transition-delay: 240ms; }
[data-seva-reveal][data-seva-delay="4"] { transition-delay: 320ms; }

@media (prefers-reduced-motion: reduce) {
  [data-seva-reveal] {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
  .seva-card,
  .seva-icon-card,
  .seva-card__media img,
  .seva-arrow,
  .seva-btn {
    transition: none !important;
  }
}

/* ---------------------------------------------------------------------------
 * Inline SVG arrow used in CTAs (drawn via class so we don't ship Lucide)
 * ------------------------------------------------------------------------- */
.seva-arrow {
  width: 1.05rem;
  height: 1.05rem;
  flex-shrink: 0;
  display: inline-block;
}

/* ---------------------------------------------------------------------------
 * Navbar polish — keep Bootstrap base but firm up the spacing
 * ------------------------------------------------------------------------- */
/* ---------------------------------------------------------------------------
 * Chatbot — floating site assistant
 *
 * Mounted by `seva-chatbot.js`. Lives in fixed position at bottom-right and
 * is fully self-contained: no Bootstrap classes used here, so it renders the
 * same on every page regardless of which page-level styles are loaded.
 * ------------------------------------------------------------------------- */
.seva-bot {
  position: fixed;
  right: 1rem;
  bottom: calc(env(safe-area-inset-bottom, 0px) + 1rem);
  z-index: 1080; /* above Bootstrap modals (1055) but below toasts edge cases */
  font-family: 'Inter', sans-serif;
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--seva-ink);
}

@media (min-width: 768px) {
  .seva-bot { right: 1.5rem; bottom: 1.5rem; }
}

.seva-bot__launcher {
  appearance: none;
  border: 0;
  background: var(--seva-navy);
  color: #ffffff;
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 9999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 12px 30px -12px rgba(15, 23, 42, 0.55);
  transition: background-color 0.25s var(--seva-ease),
              transform 0.25s var(--seva-ease);
}
.seva-bot__launcher:hover {
  background: var(--seva-navy-2);
  transform: translateY(-1px);
}
.seva-bot__launcher:focus-visible {
  outline: 2px solid var(--seva-cyan);
  outline-offset: 3px;
}
.seva-bot__launcher svg { width: 1.5rem; height: 1.5rem; stroke-width: 2; }

.seva-bot__panel {
  position: absolute;
  right: 0;
  bottom: calc(100% + 0.75rem);
  width: min(380px, calc(100vw - 2rem));
  max-height: min(80dvh, calc(100dvh - 6rem));
  background: #ffffff;
  border: 1px solid var(--seva-line);
  border-radius: 1rem;
  box-shadow: 0 24px 60px -28px rgba(15, 23, 42, 0.45);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  opacity: 0;
  transform: translateY(8px) scale(0.98);
  transform-origin: bottom right;
  pointer-events: none;
  transition: opacity 0.25s var(--seva-ease),
              transform 0.25s var(--seva-ease);
}
.seva-bot[data-open="true"] .seva-bot__panel {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}

.seva-bot__header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--seva-navy);
  color: #ffffff;
  padding: 0.75rem 1rem;
}
.seva-bot__header-icon {
  width: 2rem;
  height: 2rem;
  border-radius: 9999px;
  background: rgba(255, 255, 255, 0.12);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.seva-bot__header-icon svg { width: 1rem; height: 1rem; stroke-width: 2; }
.seva-bot__header-text { flex: 1; line-height: 1.2; }
.seva-bot__header-title { display: block; font-weight: 600; font-size: 0.875rem; }
.seva-bot__header-sub {
  display: block;
  font-size: 0.625rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: rgba(226, 232, 240, 0.85);
  margin-top: 1px;
}
.seva-bot__close {
  appearance: none;
  border: 0;
  background: transparent;
  color: rgba(255, 255, 255, 0.85);
  border-radius: 0.375rem;
  padding: 0.25rem;
  cursor: pointer;
  transition: background-color 0.2s var(--seva-ease);
}
.seva-bot__close:hover { background: rgba(255, 255, 255, 0.12); color: #fff; }
.seva-bot__close svg { width: 1rem; height: 1rem; stroke-width: 2; display: block; }

.seva-bot__log {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
  background: var(--seva-surface);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.seva-bot__bubble {
  display: flex;
  gap: 0.5rem;
  max-width: 100%;
}
.seva-bot__bubble--user { justify-content: flex-end; }
.seva-bot__bubble-content {
  padding: 0.5rem 0.75rem;
  border-radius: 1rem;
  font-size: 0.875rem;
  max-width: 85%;
}
.seva-bot__bubble--bot .seva-bot__bubble-content {
  background: #ffffff;
  border: 1px solid var(--seva-line);
  color: var(--seva-ink);
  border-bottom-left-radius: 0.375rem;
}
.seva-bot__bubble--user .seva-bot__bubble-content {
  background: var(--seva-navy);
  color: #ffffff;
  border-bottom-right-radius: 0.375rem;
}
.seva-bot__bubble--system .seva-bot__bubble-content {
  background: #ffffff;
  border: 1px dashed var(--seva-line);
  color: var(--seva-muted);
  font-size: 0.75rem;
}
.seva-bot__bubble-content p { margin: 0; }
.seva-bot__bubble-content p + p { margin-top: 0.5rem; }
.seva-bot__avatar {
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 9999px;
  background: var(--seva-navy);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 0.25rem;
}
.seva-bot__avatar svg { width: 0.875rem; height: 0.875rem; stroke-width: 2; }

.seva-bot__links {
  margin-top: 0.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
}
.seva-bot__links a {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.625rem;
  border-radius: 9999px;
  background: #f1f5f9;
  color: var(--seva-navy);
  font-size: 0.75rem;
  font-weight: 500;
  text-decoration: none;
  transition: background-color 0.2s var(--seva-ease);
}
.seva-bot__links a:hover { background: #e2e8f0; }

.seva-bot__action {
  margin-top: 0.625rem;
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.375rem 0.875rem;
  border: 0;
  border-radius: 9999px;
  background: var(--seva-navy);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: background-color 0.2s var(--seva-ease);
}
.seva-bot__action:hover { background: var(--seva-navy-2); color: #fff; }
.seva-bot__action svg { width: 0.875rem; height: 0.875rem; stroke-width: 2; }

.seva-bot__suggestions { padding-top: 0.25rem; }
.seva-bot__suggestions-label {
  font-size: 0.625rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--seva-muted);
  margin-bottom: 0.375rem;
}
.seva-bot__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
}
.seva-bot__chip {
  appearance: none;
  border: 1px solid #cbd5e1;
  background: #ffffff;
  color: var(--seva-ink-soft);
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  cursor: pointer;
  transition: border-color 0.2s var(--seva-ease),
              color 0.2s var(--seva-ease);
}
.seva-bot__chip:hover { border-color: var(--seva-navy); color: var(--seva-navy); }

.seva-bot__form {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 0.75rem;
  border-top: 1px solid var(--seva-line);
  background: #ffffff;
}
.seva-bot__input {
  flex: 1;
  appearance: none;
  border: 1px solid #cbd5e1;
  border-radius: 9999px;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-family: inherit;
  color: var(--seva-ink);
  background: #ffffff;
  transition: border-color 0.2s var(--seva-ease);
}
.seva-bot__input:focus { outline: none; border-color: var(--seva-navy); }
.seva-bot__send {
  appearance: none;
  border: 0;
  background: var(--seva-navy);
  color: #ffffff;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 9999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background-color 0.2s var(--seva-ease);
}
.seva-bot__send:hover:not(:disabled) { background: var(--seva-navy-2); }
.seva-bot__send:disabled { opacity: 0.4; cursor: not-allowed; }
.seva-bot__send svg { width: 1rem; height: 1rem; stroke-width: 2; }

.seva-bot__footer {
  border-top: 1px solid var(--seva-line);
  background: var(--seva-surface);
  padding: 0.5rem 0.75rem;
  font-size: 0.625rem;
  color: var(--seva-muted);
  line-height: 1.4;
}

@media (prefers-reduced-motion: reduce) {
  .seva-bot__panel,
  .seva-bot__launcher { transition: none !important; }
}

/* ---------------------------------------------------------------------------
 * Navbar
 *
 * Always opaque white with dark text -- robust on every page (with hero or
 * without) and never depends on scroll position to stay readable. The visual
 * transition into the navy hero below is handled inside `.seva-hero` via a
 * soft white->navy gradient at the top of the hero, so the seam reads as a
 * gradient rather than a hard color edge.
 * ------------------------------------------------------------------------- */
.navbar.seva-navbar {
  border-bottom: 1px solid var(--seva-line);
  background-color: #ffffff;
  transition: box-shadow 0.3s var(--seva-ease);
}
.navbar.seva-navbar.seva-navbar--scrolled {
  box-shadow: 0 6px 24px -16px rgba(15, 23, 42, 0.25);
}
.seva-navbar .nav-link {
  font-weight: 500;
  color: var(--seva-ink-soft);
  transition: color 0.2s var(--seva-ease);
}
.seva-navbar .nav-link.active,
.seva-navbar .nav-link:hover {
  color: var(--seva-navy);
}

/* Cart / outline button in the navbar -- pin to brand colors. */
.seva-navbar .btn-outline-primary {
  border-color: var(--seva-blue);
  color: var(--seva-blue);
  transition: background-color 0.2s var(--seva-ease),
              color 0.2s var(--seva-ease),
              border-color 0.2s var(--seva-ease);
}
.seva-navbar .btn-outline-primary:hover {
  background-color: var(--seva-blue);
  color: #ffffff;
}