/* ==========================================================================
   ALL POWER CLEANING SERVICES - Design System (Dark Theme)
   Premium dark theme with #5CE1E6 cyan accents
   ========================================================================== */

/* --------------------------------------------------------------------------
   Google Fonts: Bebas Neue (headings), Barlow (body), Barlow Condensed (labels)
   -------------------------------------------------------------------------- */
/* Font loading moved to HTML <link> for better performance */

/* --------------------------------------------------------------------------
   CSS Custom Properties (Design Tokens)
   -------------------------------------------------------------------------- */
:root {
  /* --- Brand Colors --- */
  --color-primary: #5CE1E6;
  --color-primary-light: #7AEAEE;
  --color-primary-dark: #3BB8BD;
  --color-primary-deep: #2A8A8E;
  --color-primary-50: rgba(92, 225, 230, 0.08);
  --color-primary-100: rgba(92, 225, 230, 0.15);
  --color-primary-glow: rgba(92, 225, 230, 0.3);

  /* Dark backgrounds */
  --color-dark-bg: #0B1215;
  --color-dark-surface: #111B20;
  --color-dark-card: #162025;
  --color-dark-elevated: #1A2830;

  /* Text on dark */
  --color-text: #FFFFFF;
  --color-text-secondary: #C8D6DA;
  --color-text-muted: #8A9EA5;
  --color-text-faint: #7A8E95;

  /* Semantic colors */
  --color-success: #22C55E;
  --color-warning: #F59E0B;
  --color-error: #EF4444;
  --color-info: #3B82F6;

  /* Star rating */
  --color-star: #FBBF24;

  --color-white: #ffffff;
  --color-black: #000000;

  /* Backgrounds (mapped) */
  --color-bg: var(--color-dark-bg);
  --color-bg-alt: var(--color-dark-surface);
  --color-bg-card: var(--color-dark-card);

  /* --- Typography --- */
  --font-heading: 'Bebas Neue', 'Impact', sans-serif;
  --font-body: 'Barlow', system-ui, -apple-system, sans-serif;
  --font-label: 'Barlow Condensed', 'Barlow', sans-serif;

  /* Fluid font sizes */
  --text-display: clamp(2.75rem, 5vw + 1rem, 4.5rem);
  --text-h1: clamp(2rem, 4vw + 0.5rem, 3.25rem);
  --text-h2: clamp(1.75rem, 3vw + 0.25rem, 2.5rem);
  --text-h3: clamp(1.25rem, 2vw + 0.25rem, 1.5rem);
  --text-h4: clamp(1.1rem, 1.5vw + 0.25rem, 1.25rem);
  --text-body-lg: 1.125rem;
  --text-body: 1rem;
  --text-body-sm: 0.875rem;
  --text-xs: 0.75rem;

  /* Line heights */
  --leading-tight: 1.1;
  --leading-snug: 1.3;
  --leading-normal: 1.6;
  --leading-relaxed: 1.75;

  /* Font weights */
  --weight-normal: 400;
  --weight-medium: 500;
  --weight-semibold: 600;
  --weight-bold: 700;
  --weight-extrabold: 800;

  /* Letter spacing */
  --tracking-tight: -0.025em;
  --tracking-normal: 0;
  --tracking-wide: 0.025em;
  --tracking-wider: 0.05em;
  --tracking-widest: 0.1em;

  /* --- Spacing (8px grid) --- */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* --- Borders & Radius --- */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  --border-color: rgba(92, 225, 230, 0.1);
  --border-color-strong: rgba(92, 225, 230, 0.2);

  /* --- Shadows (dark theme - use glow instead of drop shadow) --- */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4), 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -4px rgba(0, 0, 0, 0.3);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.3);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 20px rgba(92, 225, 230, 0.15);
  --shadow-glow-lg: 0 0 40px rgba(92, 225, 230, 0.2);
  --shadow-inner: inset 0 2px 4px rgba(0, 0, 0, 0.3);

  /* --- Transitions --- */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
  --transition-spring: 400ms cubic-bezier(0.175, 0.885, 0.32, 1.275);

  /* --- Z-index scale --- */
  --z-behind: -1;
  --z-base: 0;
  --z-above: 10;
  --z-nav: 100;
  --z-sticky: 200;
  --z-overlay: 300;
  --z-modal: 400;
  --z-loader: 9999;

  /* --- Container --- */
  --container-max: 1200px;
  --container-narrow: 800px;
  --container-wide: 1400px;
  --container-px: var(--space-4);
}

@media (min-width: 768px) {
  :root {
    --container-px: var(--space-8);
  }
}

/* --------------------------------------------------------------------------
   CSS Reset / Base Styles
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-body);
  font-weight: var(--weight-normal);
  line-height: var(--leading-normal);
  color: var(--color-text-secondary);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

button {
  cursor: pointer;
  border: none;
  background: none;
}

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

ul,
ol {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-white);
}

p {
  text-wrap: pretty;
}

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

/* Selection */
::selection {
  background-color: rgba(92, 225, 230, 0.3);
  color: var(--color-white);
}

/* Skip to content (accessibility) */
.skip-to-content {
  position: absolute;
  top: -100px;
  left: var(--space-4);
  background: var(--color-primary);
  color: var(--color-dark-bg);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  font-weight: var(--weight-bold);
  z-index: var(--z-loader);
  transition: top var(--transition-fast);
}

.skip-to-content:focus {
  top: var(--space-4);
}

/* --------------------------------------------------------------------------
   Layout Utilities
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-px);
  padding-right: var(--container-px);
}

.container--narrow {
  max-width: var(--container-narrow);
}

.container--wide {
  max-width: var(--container-wide);
}

.section {
  padding-top: var(--space-16);
  padding-bottom: var(--space-16);
}

@media (min-width: 768px) {
  .section {
    padding-top: var(--space-20);
    padding-bottom: var(--space-20);
  }
}

@media (min-width: 1024px) {
  .section {
    padding-top: var(--space-24);
    padding-bottom: var(--space-24);
  }
}

.section--alt {
  background-color: var(--color-bg-alt);
}

.section--dark {
  background-color: var(--color-dark-card);
  color: var(--color-white);
}

/* Grid */
.grid {
  display: grid;
  gap: var(--space-6);
}

.grid--2 { grid-template-columns: 1fr; }
.grid--3 { grid-template-columns: 1fr; }
.grid--4 { grid-template-columns: 1fr; }

@media (min-width: 640px) {
  .grid--2 { grid-template-columns: repeat(2, 1fr); }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 768px) {
  .grid--3 { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1024px) {
  .grid--4 { grid-template-columns: repeat(4, 1fr); }
}

/* Flex */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-start { display: flex; align-items: flex-start; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-center { justify-content: center; }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* --------------------------------------------------------------------------
   Typography Utilities
   -------------------------------------------------------------------------- */
.heading-display {
  font-family: var(--font-heading);
  font-size: var(--text-display);
  font-weight: var(--weight-normal);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-white);
}

.heading-1 {
  font-family: var(--font-heading);
  font-size: var(--text-h1);
  font-weight: var(--weight-normal);
  line-height: var(--leading-tight);
  text-transform: uppercase;
}

.heading-2 {
  font-family: var(--font-heading);
  font-size: var(--text-h2);
  font-weight: var(--weight-normal);
  line-height: var(--leading-snug);
  text-transform: uppercase;
}

.heading-3 {
  font-family: var(--font-heading);
  font-size: var(--text-h3);
  font-weight: var(--weight-normal);
  line-height: var(--leading-snug);
  text-transform: uppercase;
}

.heading-4 {
  font-family: var(--font-heading);
  font-size: var(--text-h4);
  font-weight: var(--weight-normal);
  line-height: var(--leading-snug);
  text-transform: uppercase;
}

.body-lg { font-size: var(--text-body-lg); }
.body-sm { font-size: var(--text-body-sm); }
.text-xs { font-size: var(--text-xs); }

.text-primary { color: var(--color-primary); }
.text-muted { color: var(--color-text-muted); }
.text-light { color: var(--color-text-faint); }
.text-white { color: var(--color-white); }
.text-secondary { color: var(--color-text-secondary); }

.font-normal { font-weight: var(--weight-normal); }
.font-medium { font-weight: var(--weight-medium); }
.font-semibold { font-weight: var(--weight-semibold); }
.font-bold { font-weight: var(--weight-bold); }
.font-extrabold { font-weight: var(--weight-extrabold); }

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.uppercase { text-transform: uppercase; }
.tracking-wide { letter-spacing: var(--tracking-wide); }
.tracking-wider { letter-spacing: var(--tracking-wider); }
.tracking-widest { letter-spacing: var(--tracking-widest); }

.section-label {
  font-family: var(--font-label);
  font-size: var(--text-body-sm);
  font-weight: var(--weight-semibold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-widest);
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.section-title {
  font-family: var(--font-heading);
  font-size: var(--text-h2);
  font-weight: var(--weight-normal);
  line-height: var(--leading-snug);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--color-white);
  margin-bottom: var(--space-4);
}

.section-subtitle {
  font-size: var(--text-body-lg);
  color: var(--color-text-muted);
  max-width: 640px;
  line-height: var(--leading-normal);
}

/* --------------------------------------------------------------------------
   Spacing Utilities
   -------------------------------------------------------------------------- */
.mx-auto { margin-left: auto; margin-right: auto; }
.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mt-12 { margin-top: var(--space-12); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }
.mb-12 { margin-bottom: var(--space-12); }
.py-4 { padding-top: var(--space-4); padding-bottom: var(--space-4); }
.py-8 { padding-top: var(--space-8); padding-bottom: var(--space-8); }
.px-4 { padding-left: var(--space-4); padding-right: var(--space-4); }
.px-6 { padding-left: var(--space-6); padding-right: var(--space-6); }
.p-4 { padding: var(--space-4); }
.p-6 { padding: var(--space-6); }
.p-8 { padding: var(--space-8); }

/* --------------------------------------------------------------------------
   Button Styles
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  min-height: 48px;
  font-family: var(--font-body);
  font-size: var(--text-body);
  font-weight: var(--weight-semibold);
  line-height: 1;
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.97);
}

/* Primary CTA - Cyan gradient */
.btn--primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: var(--color-dark-bg);
  border-color: transparent;
  font-weight: var(--weight-bold);
}

.btn--primary:hover {
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
  box-shadow: 0 4px 20px rgba(92, 225, 230, 0.4);
  transform: translateY(-1px);
}

/* Secondary - Outlined cyan */
.btn--secondary {
  background-color: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.3);
}

.btn--secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background-color: rgba(92, 225, 230, 0.08);
}

/* Outlined */
.btn--outline {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn--outline:hover {
  background-color: var(--color-primary);
  color: var(--color-dark-bg);
}

/* Phone CTA - Cyan with glow pulse */
.btn--phone {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: var(--color-dark-bg);
  border-color: transparent;
  font-weight: var(--weight-bold);
  animation: phonePulse 2s ease-in-out infinite;
}

.btn--phone:hover {
  box-shadow: 0 4px 20px rgba(92, 225, 230, 0.5);
  transform: translateY(-1px);
  animation: none;
}

@keyframes phonePulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(92, 225, 230, 0.4); }
  50% { box-shadow: 0 0 0 8px rgba(92, 225, 230, 0); }
}

/* White button (for dark sections) */
.btn--white {
  background-color: var(--color-white);
  color: var(--color-dark-bg);
  border-color: var(--color-white);
  font-weight: var(--weight-bold);
}

.btn--white:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-dark-bg);
  box-shadow: 0 4px 20px rgba(92, 225, 230, 0.4);
  transform: translateY(-1px);
}

/* Large */
.btn--lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-body-lg);
  min-height: 56px;
  border-radius: var(--radius-lg);
}

/* Small */
.btn--sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-body-sm);
  min-height: 44px;
}

/* Full width */
.btn--full {
  width: 100%;
}

/* Icon in button */
.btn svg,
.btn .btn-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   Card Styles (Dark Glassmorphism)
   -------------------------------------------------------------------------- */
.card {
  background-color: var(--color-bg-card);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  border: 1px solid var(--border-color);
  transition: all var(--transition-base);
}

.card:hover {
  border-color: var(--border-color-strong);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.card--flat {
  box-shadow: none;
  border: 1px solid var(--border-color);
}

.card--elevated {
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color-strong);
}

/* --------------------------------------------------------------------------
   Badge & Trust Signal Styles
   -------------------------------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-family: var(--font-label);
  font-weight: var(--weight-semibold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  border-radius: var(--radius-full);
}

.badge--trust {
  background-color: var(--color-primary-50);
  color: var(--color-primary);
  border: 1px solid rgba(92, 225, 230, 0.2);
}

.badge--accent {
  background-color: rgba(92, 225, 230, 0.1);
  color: var(--color-primary);
}

/* Star Rating */
.stars {
  display: inline-flex;
  gap: 2px;
  color: var(--color-star);
}

.stars svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.stars--lg svg {
  width: 24px;
  height: 24px;
}

/* --------------------------------------------------------------------------
   Form Styles (Dark Theme)
   -------------------------------------------------------------------------- */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-label {
  font-family: var(--font-label);
  font-size: var(--text-body-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-body);
  min-height: 48px;
  border: 1px solid rgba(92, 225, 230, 0.15);
  border-radius: var(--radius-md);
  background-color: rgba(11, 18, 21, 0.6);
  color: var(--color-white);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(92, 225, 230, 0.15);
}

.form-input::placeholder {
  color: var(--color-text-faint);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%238A9EA5' viewBox='0 0 16 16'%3E%3Cpath d='M8 11.5l-5-5h10l-5 5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-4) center;
  padding-right: var(--space-10);
}

/* --------------------------------------------------------------------------
   Visibility Utilities
   -------------------------------------------------------------------------- */
.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;
}

.hide-mobile {
  display: none;
}

@media (min-width: 768px) {
  .hide-mobile { display: initial; }
  .hide-desktop { display: none; }
}

/* --------------------------------------------------------------------------
   Animation Utilities
   -------------------------------------------------------------------------- */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.fade-in {
  animation: fadeIn 0.6s ease forwards;
}

.slide-up {
  animation: slideUp 0.6s ease forwards;
}

/* Scroll-triggered animation base */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered delays */
.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }
.stagger-5 { transition-delay: 0.5s; }
.stagger-6 { transition-delay: 0.6s; }
.stagger-7 { transition-delay: 0.7s; }
.stagger-8 { transition-delay: 0.8s; }
.stagger-9 { transition-delay: 0.9s; }

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

  .animate-on-scroll {
    opacity: 1;
    transform: none;
  }
}