/* ==========================================================================
   Pane Point Exterior Cleaning — Design Tokens
   ========================================================================== */

:root {
  /* Color — sky/glass blue + navy trust + warm gold premium accent */
  --color-primary: #0284C7;
  --color-primary-dark: #075985;
  --color-primary-light: #38BDF8;
  --color-on-primary: #FFFFFF;

  --color-secondary: #0F172A;
  --color-on-secondary: #FFFFFF;

  --color-accent: #F59E0B;
  --color-accent-light: #FBBF24;
  --color-on-accent: #1E1204;

  --color-background: #FFFFFF;
  --color-background-alt: #F0F9FF;
  --color-foreground: #0F172A;

  --color-card: #FFFFFF;
  --color-card-foreground: #0F172A;

  --color-muted: #64748B;
  --color-muted-bg: #F1F5F9;

  --color-border: #E2E8F0;
  --color-border-dark: rgba(255, 255, 255, 0.12);

  --color-success: #059669;
  --color-success-bg: #ECFDF5;
  --color-destructive: #DC2626;

  --color-ring: #0284C7;

  /* Typography */
  --font-heading: 'Outfit', 'Segoe UI', sans-serif;
  --font-body: 'Work Sans', 'Segoe UI', sans-serif;

  --text-xs: 0.8125rem;
  --text-sm: 0.9375rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.375rem;
  --text-2xl: 1.75rem;
  --text-3xl: 2.25rem;
  --text-4xl: 2.75rem;
  --text-5xl: 3.5rem;

  /* Spacing (8pt rhythm) */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 6rem;
  --space-10: 8rem;

  /* Radius */
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-pill: 999px;

  /* Shadow */
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06), 0 1px 3px rgba(15, 23, 42, 0.08);
  --shadow-md: 0 4px 16px rgba(15, 23, 42, 0.08), 0 2px 6px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 16px 40px rgba(15, 23, 42, 0.12), 0 4px 12px rgba(15, 23, 42, 0.06);
  --shadow-glow: 0 8px 30px rgba(2, 132, 199, 0.25);
  --shadow-glow-accent: 0 8px 24px rgba(245, 158, 11, 0.35);

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 150ms;
  --duration-base: 280ms;
  --duration-slow: 500ms;

  /* Layout */
  --container-max: 1200px;
  --header-h: 84px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-background: #0B1220;
    --color-background-alt: #0F1B2E;
    --color-foreground: #F1F5F9;
    --color-card: #111C30;
    --color-card-foreground: #F1F5F9;
    --color-muted: #93A3B8;
    --color-muted-bg: #16233A;
    --color-border: #1E2E47;
  }
}

/* ==========================================================================
   Reset
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-foreground);
  background: var(--color-background);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  line-height: 1.15;
  margin: 0;
  letter-spacing: -0.02em;
  color: var(--color-foreground);
}

p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
img, svg { display: block; max-width: 100%; }
input, select, textarea { font-family: inherit; font-size: inherit; }

:focus-visible {
  outline: 2.5px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: 4px;
}

.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ==========================================================================
   Layout helpers
   ========================================================================== */

.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-5);
}

.section { padding-block: var(--space-9); }
.section-alt { background: var(--color-background-alt); }
.section-dark { background: var(--color-secondary); color: #F1F5F9; }
.section-dark h2, .section-dark h3 { color: #FFFFFF; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-primary);
  background: rgba(2, 132, 199, 0.08);
  border: 1px solid rgba(2, 132, 199, 0.18);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-pill);
}
.section-dark .eyebrow {
  color: var(--color-accent-light);
  background: rgba(245, 158, 11, 0.12);
  border-color: rgba(245, 158, 11, 0.28);
}

.section-head {
  max-width: 640px;
  margin-bottom: var(--space-8);
}
.section-head.center { margin-inline: auto; text-align: center; }
.section-head h2 { font-size: var(--text-3xl); margin-block: var(--space-4) var(--space-3); }
.section-head p { color: var(--color-muted); font-size: var(--text-lg); }
.section-dark .section-head p { color: #94A3B8; }

@media (min-width: 768px) {
  .section-head h2 { font-size: var(--text-4xl); }
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--text-base);
  padding: 0.95rem 1.75rem;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  transition: transform var(--duration-fast) var(--ease-spring),
              box-shadow var(--duration-base) var(--ease-out),
              background-color var(--duration-base) var(--ease-out);
  white-space: nowrap;
  min-height: 48px;
  touch-action: manipulation;
}
.btn:active { transform: scale(0.97); }
.btn svg { width: 18px; height: 18px; flex-shrink: 0; }

.btn-primary {
  background: var(--color-primary);
  color: var(--color-on-primary);
  box-shadow: var(--shadow-glow);
}
.btn-primary:hover { background: var(--color-primary-dark); box-shadow: 0 10px 34px rgba(2,132,199,0.34); }

.btn-accent {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
  color: var(--color-on-accent);
  box-shadow: var(--shadow-glow-accent);
}
.btn-accent:hover { box-shadow: 0 10px 30px rgba(245,158,11,0.45); }

.btn-outline {
  background: transparent;
  border-color: var(--color-border);
  color: var(--color-foreground);
}
.btn-outline:hover { border-color: var(--color-primary); color: var(--color-primary); }

.section-dark .btn-outline { border-color: rgba(255,255,255,0.24); color: #fff; }
.section-dark .btn-outline:hover { border-color: var(--color-accent-light); color: var(--color-accent-light); }

.btn-ghost {
  background: transparent;
  color: var(--color-foreground);
  padding: 0.6rem 1rem;
}
.btn-ghost:hover { color: var(--color-primary); }

.btn-block { width: 100%; }
.btn-lg { padding: 1.15rem 2.25rem; font-size: var(--text-lg); }

/* ==========================================================================
   Icons
   ========================================================================== */

.icon { width: 24px; height: 24px; stroke: currentColor; fill: none; stroke-width: 1.75; }

/* ==========================================================================
   Scroll reveal
   ========================================================================== */

[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
}
[data-reveal].in-view { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  [data-reveal] { transform: none; transition: opacity var(--duration-base) linear; }
}