/* =============================================================================
   CuraSuite Base CSS
   Reset, typography, layout primitives, utility classes.
   ============================================================================= */

/* ── Reset ─────────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--text-primary);
  background-color: var(--surface-page);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img, svg, video { display: block; max-width: 100%; }
input, button, textarea, select { font: inherit; }
a { color: var(--text-link); text-decoration: none; }
a:hover { text-decoration: underline; }
ul, ol { list-style: none; }

/* ── Focus ─────────────────────────────────────────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* ── Skip link ──────────────────────────────────────────────────────────────── */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  background: var(--color-primary-600);
  color: var(--color-white);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius);
  z-index: var(--z-toast);
  font-weight: var(--font-medium);
}
.skip-link:focus { top: var(--space-4); }

/* ── Container ─────────────────────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--content-width);
  margin-inline: auto;
  padding-inline: var(--space-4);
}
@media (min-width: 640px)  { .container { padding-inline: var(--space-6); } }
@media (min-width: 1024px) { .container { padding-inline: var(--space-8); } }

/* ── Typography ────────────────────────────────────────────────────────────── */
h1 { font-size: var(--text-4xl); font-weight: var(--font-bold);   line-height: var(--leading-tight); }
h2 { font-size: var(--text-3xl); font-weight: var(--font-bold);   line-height: var(--leading-tight); }
h3 { font-size: var(--text-2xl); font-weight: var(--font-semi);   line-height: var(--leading-tight); }
h4 { font-size: var(--text-xl);  font-weight: var(--font-semi);   line-height: var(--leading-tight); }
h5 { font-size: var(--text-lg);  font-weight: var(--font-medium); line-height: var(--leading-tight); }
h6 { font-size: var(--text-base);font-weight: var(--font-medium); line-height: var(--leading-tight); }

@media (min-width: 768px) {
  h1 { font-size: var(--text-5xl); }
  h2 { font-size: var(--text-4xl); }
}
@media (min-width: 1024px) {
  h1 { font-size: var(--text-6xl); }
}

p { line-height: var(--leading-relaxed); }
p + p { margin-top: var(--space-4); }

/* ── Buttons ───────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius);
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  line-height: 1;
  cursor: pointer;
  border: 2px solid transparent;
  text-decoration: none;
  transition: all var(--transition-fast);
  white-space: nowrap;
}
.btn:focus-visible { outline: 2px solid var(--border-focus); outline-offset: 2px; }
.btn:disabled { opacity: 0.6; cursor: not-allowed; pointer-events: none; }

.btn-primary {
  background: var(--color-primary-600);
  color: var(--color-white);
  border-color: var(--color-primary-600);
}
.btn-primary:hover { background: var(--color-primary-700); border-color: var(--color-primary-700); text-decoration: none; }

.btn-secondary {
  background: transparent;
  color: var(--color-primary-600);
  border-color: var(--color-primary-600);
}
.btn-secondary:hover { background: var(--color-primary-50); text-decoration: none; }

.btn-accent {
  background: var(--color-accent-500);
  color: var(--color-white);
  border-color: var(--color-accent-500);
}
.btn-accent:hover { background: var(--color-accent-600); border-color: var(--color-accent-600); text-decoration: none; }

.btn-ghost {
  background: transparent;
  color: var(--text-primary);
  border-color: transparent;
}
.btn-ghost:hover { background: var(--surface-card); text-decoration: none; }

.btn-sm { padding: var(--space-2) var(--space-4); font-size: var(--text-sm); }
.btn-lg { padding: var(--space-4) var(--space-8); font-size: var(--text-lg); }

/* ── Cards ─────────────────────────────────────────────────────────────────── */
.card {
  background: var(--surface-raised);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition);
}
.card:hover { box-shadow: var(--shadow-md); }

/* ── Forms ─────────────────────────────────────────────────────────────────── */
.form-group { display: flex; flex-direction: column; gap: var(--space-2); }
.form-label { font-size: var(--text-sm); font-weight: var(--font-medium); color: var(--text-primary); }
.form-label .required { color: var(--color-error); margin-left: 2px; }

.form-input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  font-size: var(--text-base);
  color: var(--text-primary);
  background: var(--surface-raised);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.form-input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
  outline: none;
}
.form-input::placeholder { color: var(--text-muted); }
.form-input.error { border-color: var(--color-error); }

.form-help  { font-size: var(--text-sm); color: var(--text-secondary); }
.form-error { font-size: var(--text-sm); color: var(--color-error); }

/* ── Section Spacing ───────────────────────────────────────────────────────── */
.section { padding-block: var(--space-16); }
.section-sm { padding-block: var(--space-10); }
.section-lg { padding-block: var(--space-24); }

/* ── Grid ──────────────────────────────────────────────────────────────────── */
.grid { display: grid; gap: var(--space-6); }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }

/* ── Responsive Split Layouts ──────────────────────────────────────────────── */
/* Two-column layouts (hero copy+image, content+visual) — stack on mobile. */
.split-hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-10);
  align-items: center;
}
.split-even {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-10);
  align-items: center;
}
@media (max-width: 768px) {
  .split-hero, .split-even { grid-template-columns: 1fr; }
}

/* Main content + fixed-width side column (blog sidebar, contact aside, product
   spec panel). Override the side column's width per-instance with
   style="--sidebar-w:380px" — falls back to 320px. Stacks below 900px. */
.split-sidebar {
  display: grid;
  grid-template-columns: 1fr var(--sidebar-w, 320px);
  gap: var(--space-10);
  align-items: start;
}
@media (max-width: 900px) {
  .split-sidebar { grid-template-columns: 1fr; }
}

/* Two-field form rows (phone/email, city/clinic) — stack on narrow phones. */
.form-row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}
@media (max-width: 480px) {
  .form-row-2 { grid-template-columns: 1fr; }
}

/* Footer: wide brand column + 4 equal nav columns. */
.footer-grid {
  display: grid;
  grid-template-columns: 2.5fr 1fr 1fr 1fr 1fr;
  gap: var(--space-10);
}
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; } }

/* Decorative connecting line between "how it works" steps — only meaningful
   when all steps sit in a single row (.grid-4 at full width). */
@media (max-width: 900px) { .how-it-works-line { display: none; } }

/* Sticky sidebar (solutions page demo form) — disable sticky once
   .split-sidebar has stacked to one column, or the sidebar floats over the
   content stacked below it while scrolling. */
@media (max-width: 900px) {
  .solutions-sidebar-sticky { position: static !important; top: auto !important; }
}

/* ── Site Header — Mobile Navigation ───────────────────────────────────────── */
/* .mobile-nav-panel has no unconditional `display:none` here — Alpine's
   x-show/x-cloak fully own its visibility. A CSS rule hiding it by default
   would win once Alpine clears its own inline style to reveal the panel. */
.desktop-nav { display: flex; }
.mobile-nav-toggle { display: none; }
@media (max-width: 900px) {
  .desktop-nav { display: none !important; }
  .mobile-nav-toggle { display: flex !important; }
}
@media (min-width: 901px) {
  .mobile-nav-panel { display: none !important; }
}
.mobile-nav-panel a:hover { background: var(--color-primary-50); color: var(--color-primary-600); border-radius: var(--radius); }

/* ── HTMX Loading Indicator ────────────────────────────────────────────────── */
.htmx-indicator { opacity: 0; transition: opacity var(--transition); }
.htmx-request .htmx-indicator { opacity: 1; }
.htmx-request.htmx-indicator  { opacity: 1; }

/* ── Toast Notifications ───────────────────────────────────────────────────── */
#toast-container {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  max-width: 360px;
}

/* ── Utility ───────────────────────────────────────────────────────────────── */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }
.text-center { text-align: center; }
.text-muted { color: var(--text-secondary); }
.font-bold { font-weight: var(--font-bold); }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* =============================================================================
   CuraSuite — Pattern & Section Enhancements
   ============================================================================= */

/* ── Background Patterns ────────────────────────────────────────────────────── */

/* Subtle dot grid */
.bg-dots {
  background-image: radial-gradient(var(--color-gray-300) 1px, transparent 1px);
  background-size: 24px 24px;
}
.bg-dots-sm {
  background-image: radial-gradient(var(--color-gray-200) 1px, transparent 1px);
  background-size: 16px 16px;
}

/* Diagonal line pattern */
.bg-lines {
  background-image: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 10px,
    var(--color-gray-100) 10px,
    var(--color-gray-100) 11px
  );
}

/* Grid pattern */
.bg-grid {
  background-image:
    linear-gradient(var(--color-gray-100) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-gray-100) 1px, transparent 1px);
  background-size: 40px 40px;
}
.bg-grid-blue {
  background-image:
    linear-gradient(var(--color-primary-100) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-primary-100) 1px, transparent 1px);
  background-size: 40px 40px;
  background-color: var(--color-primary-50);
}

/* Hero gradient with pattern overlay */
.hero-pattern {
  background-color: var(--color-primary-50);
  background-image:
    radial-gradient(var(--color-primary-200) 1px, transparent 1px);
  background-size: 28px 28px;
}
.hero-pattern-dark {
  background-color: var(--color-gray-900);
  background-image:
    radial-gradient(rgba(255,255,255,.06) 1px, transparent 1px);
  background-size: 28px 28px;
}

/* Radial fade overlay — place inside a relative parent */
.pattern-fade::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 30%, var(--surface-page) 100%);
  pointer-events: none;
}
.pattern-fade-light::after {
  background: radial-gradient(ellipse at center, transparent 20%, white 85%);
}

/* ── Stat / metric card ──────────────────────────────────────────────────────── */
.stat-card {
  background: white;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: var(--space-6) var(--space-8);
  text-align: center;
}
.stat-number {
  font-size: var(--text-4xl);
  font-weight: var(--font-bold);
  color: var(--color-primary-600);
  line-height: 1;
  margin-bottom: var(--space-2);
}
.stat-label {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  font-weight: var(--font-medium);
}

/* ── Feature icon box ────────────────────────────────────────────────────────── */
.feature-icon {
  width: 52px; height: 52px;
  border-radius: var(--radius-lg);
  display: flex; align-items: center; justify-content: center;
  font-size: 24px;
  margin-bottom: var(--space-4);
  flex-shrink: 0;
}

/* ── Pill badge ──────────────────────────────────────────────────────────────── */
.pill {
  display: inline-flex; align-items: center; gap: var(--space-2);
  background: var(--color-primary-50);
  color: var(--color-primary-700);
  border: 1px solid var(--color-primary-200);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  padding: var(--space-1) var(--space-4);
  margin-bottom: var(--space-4);
}
.pill-green {
  background: var(--color-secondary-50);
  color: var(--color-secondary-700);
  border-color: var(--color-secondary-200);
}

/* ── Section label ────────────────────────────────────────────────────────────── */
.section-label {
  font-size: var(--text-sm);
  font-weight: var(--font-semi);
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--color-primary-600);
  margin-bottom: var(--space-3);
}

/* ── Divider with text ────────────────────────────────────────────────────────── */
.divider-text {
  display: flex; align-items: center; gap: var(--space-4);
  color: var(--text-muted); font-size: var(--text-sm);
}
.divider-text::before,
.divider-text::after {
  content: ''; flex: 1; height: 1px; background: var(--border-default);
}

/* ── Numbered step ────────────────────────────────────────────────────────────── */
.step-number {
  width: 44px; height: 44px;
  background: var(--color-primary-600);
  color: white;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: var(--font-bold);
  font-size: var(--text-lg);
  flex-shrink: 0;
  margin: 0 auto var(--space-4);
}

/* ── Checklist ────────────────────────────────────────────────────────────────── */
.check-list { display: flex; flex-direction: column; gap: var(--space-3); list-style: none; }
.check-list li { display: flex; align-items: flex-start; gap: var(--space-3); font-size: var(--text-sm); color: var(--text-secondary); line-height: var(--leading-relaxed); }
.check-list li::before { content: '✓'; color: var(--color-secondary-600); font-weight: var(--font-bold); flex-shrink: 0; margin-top: 1px; }

/* ── Card hover lift ──────────────────────────────────────────────────────────── */
.card-hover { transition: transform var(--transition), box-shadow var(--transition); }
.card-hover:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }

/* ── Testimonial card ────────────────────────────────────────────────────────── */
.testimonial-card {
  background: white;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-sm);
}

/* ── Inline anchor nav (tabs-like) ───────────────────────────────────────────── */
.anchor-nav {
  display: flex; gap: 0;
  border-bottom: 2px solid var(--border-default);
  margin-bottom: var(--space-10);
}
.anchor-nav a {
  padding: var(--space-3) var(--space-5);
  font-size: var(--text-sm); font-weight: var(--font-medium);
  color: var(--text-secondary); text-decoration: none;
  border-bottom: 2px solid transparent; margin-bottom: -2px;
  transition: color var(--transition), border-color var(--transition);
}
.anchor-nav a:hover { color: var(--text-primary); text-decoration: none; }
.anchor-nav a.active { color: var(--color-primary-600); border-bottom-color: var(--color-primary-600); }

/* ── Footer enhanced ─────────────────────────────────────────────────────────── */
.footer-link {
  font-size: var(--text-sm);
  color: var(--color-gray-400);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.footer-link:hover { color: white; text-decoration: none; }

/* ── Social icon ──────────────────────────────────────────────────────────────── */
.social-icon {
  width: 36px; height: 36px;
  background: rgba(255,255,255,.08);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-gray-400);
  text-decoration: none;
  transition: background var(--transition-fast), color var(--transition-fast);
}
.social-icon:hover { background: rgba(255,255,255,.15); color: white; text-decoration: none; }

/* ── Logo strip ───────────────────────────────────────────────────────────────── */
.logo-strip {
  display: flex; align-items: center; justify-content: center;
  gap: var(--space-10); flex-wrap: wrap;
  opacity: .5; filter: grayscale(1);
}
.logo-strip:hover { opacity: .7; }


/* Alpine.js — hide elements until Alpine has initialized (prevents flash) */
[x-cloak] { display: none !important; }