/* Clinic Management System — base.css — Light Happy Theme */
:root {
  /* Backgrounds */
  --bg-deep:    #f0f7ff;
  --bg-base:    #f8faff;
  --bg-surface: #ffffff;
  --bg-raised:  #f0f4ff;
  --bg-glass:   rgba(255, 255, 255, 0.85);

  /* Accent — teal/blue-green, feels clinical & cheerful */
  --accent:         #0ea5e9;
  --accent-dim:     #0284c7;
  --accent-glow:    rgba(14, 165, 233, 0.18);
  --accent-soft:    rgba(14, 165, 233, 0.08);
  --accent-hover:   #38bdf8;

  /* Text */
  --text-primary:   #0f172a;
  --text-secondary: #475569;
  --text-muted:     #94a3b8;

  /* Borders */
  --border:         rgba(0, 0, 0, 0.08);
  --border-accent:  rgba(14, 165, 233, 0.35);

  /* Status */
  --danger:         #ef4444;
  --danger-soft:    rgba(239, 68, 68, 0.08);
  --warning:        #f59e0b;
  --warning-soft:   rgba(245, 158, 11, 0.08);
  --success:        #22c55e;
  --success-soft:   rgba(34, 197, 94, 0.08);

  /* Shape */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;

  /* Shadow */
  --shadow-card: 0 1px 4px rgba(0,0,0,0.06), 0 4px 16px rgba(14,165,233,0.06);
  --shadow-glow: 0 0 32px rgba(14, 165, 233, 0.12);
  --shadow-md:   0 4px 24px rgba(0,0,0,0.10);

  /* Motion */
  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);

  /* Typography */
  --font-display: 'Syne', sans-serif;
  --font-body:    'DM Sans', sans-serif;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-7: 2rem;
  --space-8: 2.5rem;
  --space-9: 3rem;

  --focus-ring: 0 0 0 4px rgba(14, 165, 233, 0.18);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  color-scheme: light;
}

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(900px 700px at 0% 0%, rgba(14,165,233,0.07), transparent 60%),
              radial-gradient(700px 500px at 100% 100%, rgba(99,102,241,0.06), transparent 60%),
              var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img,
svg,
video,
canvas {
  display: block;
  max-width: 100%;
}

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

a {
  color: inherit;
  text-decoration: none;
}

::selection {
  background: rgba(14, 165, 233, 0.2);
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0;
}

p { margin: 0; }

.hidden { display: none !important; }
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(0,0,0,0.12); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: rgba(14,165,233,0.35); }

/* ── Reveal animation (used across all app pages) ─────────*/
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  transition-delay: var(--d, 0ms);
}
.reveal.is-in {
  opacity: 1;
  transform: translateY(0);
}

/* ── Secondary / muted text utility ──────────────────────*/
.secondary {
  color: var(--text-secondary);
  font-size: 0.88rem;
}

/* ── Field hint ───────────────────────────────────────────*/
.field-hint {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 0.3rem;
}

/* ── Field optional label ─────────────────────────────────*/
.field-optional {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 400;
  margin-right: 0.3rem;
  margin-left: 0.3rem;
}