/* ==========================================================================
   Alkemico Pakistan — Shared Theme
   assets/css/theme.css

   Load this file on EVERY page, before any page-specific CSS
   (header.css, footer.css, homepage.css, etc.) so component files can
   use these variables. Fonts required in <head> before this file:

   <link rel="preconnect" href="https://fonts.googleapis.com">
   <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
   <link href="https://fonts.googleapis.com/css2?family=Poppins:wght@500;600;700;800&family=Inter:wght@400;500;600;700&display=swap" rel="stylesheet">
   ========================================================================== */

:root {

  /* ------------------------------------------------------------------
     1. COLOR PALETTE
     Trustworthy blue (cleanliness / water / reliability) as primary,
     a teal/green secondary (freshness, hygiene), a warm amber accent
     for highlights, price tags and secondary CTAs. Deep navy for dark
     sections instead of pure black, to stay on-brand.
     ------------------------------------------------------------------ */
  --color-primary:        #1565C0; /* main brand blue — links, primary buttons, active nav */
  --color-primary-dark:   #0D47A1; /* hover/active states, headings-on-light accents */
  --color-primary-light:  #E3F2FD; /* tinted backgrounds, icon chips, badges */

  --color-secondary:      #00796B; /* teal — secondary buttons, checkmarks, "eco" badges */
  --color-secondary-dark: #00564C; /* secondary button hover/active */
  --color-secondary-light:#E0F2F0; /* tinted backgrounds for secondary elements */

  --color-accent:         #B85400; /* warm amber — price tags, highlights, secondary CTA */
  --color-accent-dark:    #8F4100; /* accent hover/active */
  --color-accent-light:   #FFF1E2; /* accent badge backgrounds */

  --color-bg:             #FFFFFF; /* default page background */
  --color-surface:        #FFFFFF; /* cards, form fields on light sections */
  --color-surface-alt:    #F4F8FB; /* tinted section background (alternate between white/this) */

  --color-dark-bg:        #0B1F3A; /* dark section background (footer-strength CTAs, deep sections) */
  --color-dark-surface:   #142B4D; /* cards/inputs placed inside a dark section */

  --color-text:           #1A2332; /* body copy on light backgrounds */
  --color-text-muted:     #5B6B7F; /* secondary/supporting copy on light backgrounds */
  --color-text-on-dark:   #F5F8FC; /* body copy on dark sections */
  --color-text-on-dark-muted: #A9B8CC; /* supporting copy on dark sections */

  --color-border:         #E1E8EF; /* card/input/table borders on light backgrounds */
  --color-border-dark:    #24406B; /* borders on dark sections */

  --color-success:        #187A34;
  --color-success-light:  #E6F4EA;
  --color-warning:        #9C5B00;
  --color-warning-light:  #FFF3DE;
  --color-error:          #C62828;
  --color-error-light:    #FCE8E8;


  /* ------------------------------------------------------------------
     2a. TITLES — sizes (mobile-first, fluid via clamp) + one shared color
     ------------------------------------------------------------------ */
  --heading-color:        var(--color-text);
  --heading-color-on-dark:var(--color-text-on-dark);
  --heading-font-weight:  700;
  --heading-line-height:  1.2;

  --h1-size: clamp(1.75rem, 1.45rem + 1.5vw, 2.5rem);   /* ~28px → 40px */
  --h2-size: clamp(1.5rem, 1.3rem + 1vw, 2rem);          /* ~24px → 32px */
  --h3-size: clamp(1.25rem, 1.13rem + 0.6vw, 1.5rem);    /* ~20px → 24px */
  --h4-size: clamp(1.125rem, 1.06rem + 0.3vw, 1.25rem);  /* ~18px → 20px */
  --h5-size: 1.0625rem;  /* 17px */
  --h6-size: 0.9375rem;  /* 15px */

  /* 2b. PARAGRAPHS */
  --p-size:        1rem;       /* 16px */
  --p-size-lead:   1.125rem;   /* 18px, intro/lede paragraphs */
  --p-size-small:  0.875rem;   /* 14px, fine print */
  --p-line-height: 1.7;
  --p-color:       var(--color-text);
  --p-color-muted: var(--color-text-muted);

  /* 2c. LINKS */
  --link-color:          var(--color-primary);
  --link-color-hover:    var(--color-primary-dark);
  --link-color-visited:  #6A3FB5;
  --link-color-on-dark:  #8FC1FF;
  --link-decoration:     underline;
  --link-focus-outline:  2px solid var(--color-primary);
  --link-focus-offset:   2px;

  /* 2d. BUTTONS — background / text / border per state */
  --btn-radius: var(--radius-md);
  --btn-font-weight: 600;
  --btn-font-size: 0.9375rem;
  --btn-padding: 0.75rem 1.375rem;

  --btn-primary-bg:            var(--color-primary);
  --btn-primary-text:          #FFFFFF;
  --btn-primary-bg-hover:      var(--color-primary-dark);
  --btn-primary-bg-active:     #0A3A85;
  --btn-primary-bg-disabled:   #90B7E3;
  --btn-primary-text-disabled: #F0F5FC;

  --btn-secondary-bg:            var(--color-secondary);
  --btn-secondary-text:          #FFFFFF;
  --btn-secondary-bg-hover:      var(--color-secondary-dark);
  --btn-secondary-bg-active:     #003F37;
  --btn-secondary-bg-disabled:   #8FC0BA;
  --btn-secondary-text-disabled: #EFF8F7;

  --btn-outline-border:          var(--color-primary);
  --btn-outline-text:            var(--color-primary);
  --btn-outline-bg:              transparent;
  --btn-outline-border-hover:    var(--color-primary-dark);
  --btn-outline-text-hover:      var(--color-primary-dark);
  --btn-outline-bg-hover:        var(--color-primary-light);
  --btn-outline-bg-active:       #CFE4FA;
  --btn-outline-border-disabled: #B9C6D6;
  --btn-outline-text-disabled:   #B9C6D6;

  --btn-ghost-text:           var(--color-text);
  --btn-ghost-bg:             transparent;
  --btn-ghost-bg-hover:       var(--color-surface-alt);
  --btn-ghost-bg-active:      #E7EEF4;
  --btn-ghost-text-disabled:  #ADB8C4;

  /* 2e. FORM FIELDS */
  --field-bg:               var(--color-surface);
  --field-border:            var(--color-border);
  --field-border-focus:      var(--color-primary);
  --field-border-error:      var(--color-error);
  --field-text:              var(--color-text);
  --field-placeholder:       #8A96A8;
  --field-radius:            var(--radius-sm);
  --field-padding:           0.7rem 0.9rem;
  --field-font-size:         0.9375rem;

  /* 2f. CARDS */
  --card-bg:            var(--color-surface);
  --card-border:        var(--color-border);
  --card-radius:        var(--radius-lg);
  --card-padding:       1.5rem;
  --card-shadow:        var(--shadow-sm);
  --card-shadow-hover:  var(--shadow-md);

  /* 2g. SHADOWS */
  --shadow-sm: 0 1px 3px rgba(11, 31, 58, 0.08), 0 1px 2px rgba(11, 31, 58, 0.06);
  --shadow-md: 0 6px 16px rgba(11, 31, 58, 0.10), 0 2px 6px rgba(11, 31, 58, 0.06);
  --shadow-lg: 0 16px 36px rgba(11, 31, 58, 0.14), 0 4px 10px rgba(11, 31, 58, 0.08);

  /* 2h. BORDER RADIUS */
  --radius-sm:   6px;
  --radius-md:   10px;
  --radius-lg:   16px;
  --radius-pill: 999px;

  /* 2i. SPACING SCALE (8px base) */
  --space-1: 0.25rem;  /* 4px  */
  --space-2: 0.5rem;   /* 8px  */
  --space-3: 0.75rem;  /* 12px */
  --space-4: 1rem;     /* 16px */
  --space-5: 1.5rem;   /* 24px */
  --space-6: 2rem;     /* 32px */
  --space-7: 3rem;     /* 48px */
  --space-8: 4rem;     /* 64px */
  --space-9: 6rem;     /* 96px */

  /* 2j. CONTAINER WIDTH */
  --container-width:        1200px; /* header/footer/site chrome */
  --container-width-narrow: 1100px; /* long-form content pages */

  /* ------------------------------------------------------------------
     3. FONT PAIRING
     Heading: Poppins (geometric, friendly, confident — good for a
       consumer household brand, distinct from body copy at a glance)
     Body: Inter (already used sitewide — highly legible at small sizes,
       neutral workhorse for dense product/FAQ copy)
     ------------------------------------------------------------------ */
  --font-heading: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-body:    'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}


/* ==========================================================================
   4. SECTION STYLES — light / tinted / dark, so pages can alternate
   ========================================================================== */

.section {
  padding: var(--space-8) 0;
}

.section__inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--space-5);
}

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

/* Light (default) */
.section--light {
  background: var(--color-bg);
  color: var(--color-text);
}

/* Tinted — alternate with light so pages never run long stretches of plain white */
.section--tinted {
  background: var(--color-surface-alt);
  color: var(--color-text);
}

.section--tinted-gradient {
  background: linear-gradient(180deg, #F4F8FB 0%, #EAF2F9 100%);
  color: var(--color-text);
}

/* Subtle repeating dot pattern for tinted sections that want texture without noise */
.section--pattern {
  background-color: var(--color-surface-alt);
  background-image: radial-gradient(rgba(21, 101, 192, 0.08) 1px, transparent 1px);
  background-size: 22px 22px;
}

/* Dark — deep navy, for CTA bands / trust strips */
.section--dark {
  background: var(--color-dark-bg);
  color: var(--color-text-on-dark);
}

.section--dark-gradient {
  background: linear-gradient(135deg, #0B1F3A 0%, #12315C 100%);
  color: var(--color-text-on-dark);
}

/* Automatically flip text/link colors for anything inside a dark section */
.section--dark h1, .section--dark h2, .section--dark h3,
.section--dark h4, .section--dark h5, .section--dark h6 {
  color: var(--color-text-on-dark);
}

.section--dark p, .section--dark li, .section--dark span {
  color: var(--color-text-on-dark-muted);
}

.section--dark a:not(.btn) {
  color: var(--link-color-on-dark);
}

.section--dark a:not(.btn):hover {
  color: #FFFFFF;
}

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

.section--dark-gradient h1, .section--dark-gradient h2, .section--dark-gradient h3,
.section--dark-gradient h4, .section--dark-gradient h5, .section--dark-gradient h6 {
  color: var(--color-text-on-dark);
}

.section--dark-gradient p, .section--dark-gradient li {
  color: var(--color-text-on-dark-muted);
}

/* .section--dark already flips link colors on dark backgrounds (above) —
   .section--dark-gradient was missing the same treatment, so a link
   inside it (e.g. bundles.php's hero text) stayed the default blue,
   low-contrast against navy. */
.section--dark-gradient a:not(.btn) {
  color: var(--link-color-on-dark);
}

.section--dark-gradient a:not(.btn):hover {
  color: #FFFFFF;
}


/* ==========================================================================
   5. BASE RESET
   ========================================================================== */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

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

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

ul, ol {
  margin: 0;
}

button {
  font-family: inherit;
}

/* Skip link — visually hidden until keyboard-focused */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 1000;
  background: var(--color-primary);
  color: #FFFFFF;
  padding: var(--space-2) var(--space-4);
  border-radius: 0 0 var(--radius-sm) 0;
  text-decoration: none;
  font-weight: 600;
}

.skip-link:focus {
  left: 0;
}

/* Visually hidden but still available to screen readers / present in the
   DOM for bots to fill in (used for the contact form honeypot field) */
.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Smooth color transitions on every link by default */
a {
  transition: color 0.15s ease;
}

/* Form status banners (contact form success/error) */
.form-banner {
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
  margin-bottom: var(--space-5);
  font-size: 0.9375rem;
}

.form-banner--success {
  background: var(--color-success-light);
  color: var(--color-success);
}

.form-banner--error {
  background: var(--color-error-light);
  color: var(--color-error);
}


/* ==========================================================================
   6. TYPOGRAPHY
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: var(--heading-font-weight);
  line-height: var(--heading-line-height);
  color: var(--heading-color);
  margin: 0 0 var(--space-4);
}

h1 { font-size: var(--h1-size); }
h2 { font-size: var(--h2-size); }
h3 { font-size: var(--h3-size); }
h4 { font-size: var(--h4-size); font-weight: 600; }
h5 { font-size: var(--h5-size); font-weight: 600; }
h6 { font-size: var(--h6-size); font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; }

p {
  margin: 0 0 var(--space-4);
  color: var(--p-color);
  font-size: var(--p-size);
  line-height: var(--p-line-height);
}

p.lead {
  font-size: var(--p-size-lead);
  color: var(--color-text-muted);
}

small, .text-small {
  font-size: var(--p-size-small);
}

.text-muted {
  color: var(--p-color-muted);
}


/* ==========================================================================
   7. LINKS
   ========================================================================== */

a {
  color: var(--link-color);
  text-decoration: var(--link-decoration);
  text-underline-offset: 2px;
}

a:hover {
  color: var(--link-color-hover);
}

/* :not(.btn) matters here: a plain element+pseudo-class selector like
   a:visited (specificity 0,0,1,1) beats a single button class like
   .btn--whatsapp or .btn--outline (0,0,1,0) regardless of source order —
   so any "button" the browser already considered visited (you'd clicked
   it while testing) was turning the visited-link purple instead of its
   real button color. */
a:visited:not(.btn) {
  color: var(--link-color-visited);
}

a:focus-visible {
  outline: var(--link-focus-outline);
  outline-offset: var(--link-focus-offset);
  border-radius: 2px;
}


/* ==========================================================================
   8. BUTTONS
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--btn-padding);
  border-radius: var(--btn-radius);
  font-size: var(--btn-font-size);
  font-weight: var(--btn-font-weight);
  text-decoration: none;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: background-color 0.18s ease, border-color 0.18s ease, color 0.18s ease, box-shadow 0.18s ease;
}

.btn:focus-visible {
  outline: var(--link-focus-outline);
  outline-offset: 2px;
}

/* Primary */
.btn--primary {
  background: var(--btn-primary-bg);
  color: var(--btn-primary-text);
}
.btn--primary:hover   { background: var(--btn-primary-bg-hover); color: var(--btn-primary-text); }
.btn--primary:active  { background: var(--btn-primary-bg-active); }
.btn--primary:disabled,
.btn--primary[aria-disabled="true"] {
  background: var(--btn-primary-bg-disabled);
  color: var(--btn-primary-text-disabled);
  cursor: not-allowed;
}

/* Secondary */
.btn--secondary {
  background: var(--btn-secondary-bg);
  color: var(--btn-secondary-text);
}
.btn--secondary:hover  { background: var(--btn-secondary-bg-hover); color: var(--btn-secondary-text); }
.btn--secondary:active { background: var(--btn-secondary-bg-active); }
.btn--secondary:disabled,
.btn--secondary[aria-disabled="true"] {
  background: var(--btn-secondary-bg-disabled);
  color: var(--btn-secondary-text-disabled);
  cursor: not-allowed;
}

/* Outline */
.btn--outline {
  background: var(--btn-outline-bg);
  color: var(--btn-outline-text);
  border-color: var(--btn-outline-border);
}
.btn--outline:hover {
  background: var(--btn-outline-bg-hover);
  color: var(--btn-outline-text-hover);
  border-color: var(--btn-outline-border-hover);
}
.btn--outline:active { background: var(--btn-outline-bg-active); }
.btn--outline:disabled,
.btn--outline[aria-disabled="true"] {
  border-color: var(--btn-outline-border-disabled);
  color: var(--btn-outline-text-disabled);
  cursor: not-allowed;
}

/* Ghost */
.btn--ghost {
  background: var(--btn-ghost-bg);
  color: var(--btn-ghost-text);
}
.btn--ghost:hover  { background: var(--btn-ghost-bg-hover); }
.btn--ghost:active { background: var(--btn-ghost-bg-active); }
.btn--ghost:disabled,
.btn--ghost[aria-disabled="true"] {
  color: var(--btn-ghost-text-disabled);
  cursor: not-allowed;
}

.btn--sm { padding: 0.5rem 1rem; font-size: 0.875rem; }
.btn--lg { padding: 0.9rem 1.75rem; font-size: 1rem; }
.btn--pill { border-radius: var(--radius-pill); }


/* ==========================================================================
   9. FORM FIELDS
   ========================================================================== */

.field-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.field-input,
.field-select,
.field-textarea {
  width: 100%;
  background: var(--field-bg);
  border: 1.5px solid var(--field-border);
  border-radius: var(--field-radius);
  padding: var(--field-padding);
  font-size: var(--field-font-size);
  color: var(--field-text);
  font-family: var(--font-body);
}

.field-input::placeholder,
.field-textarea::placeholder {
  color: var(--field-placeholder);
}

.field-input:focus,
.field-select:focus,
.field-textarea:focus {
  outline: none;
  border-color: var(--field-border-focus);
  box-shadow: 0 0 0 3px rgba(21, 101, 192, 0.15);
}

.field-input.is-error,
.field-textarea.is-error {
  border-color: var(--field-border-error);
}

.field-hint {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

.field-hint.is-error {
  color: var(--color-error);
}


/* ==========================================================================
   10. BADGES
   ========================================================================== */

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 0.25rem 0.7rem;
  border-radius: var(--radius-pill);
  font-size: 0.8125rem;
  font-weight: 600;
}

.badge--primary   { background: var(--color-primary-light);   color: var(--color-primary-dark); }
.badge--secondary { background: var(--color-secondary-light); color: var(--color-secondary-dark); }
.badge--accent    { background: var(--color-accent-light);    color: var(--color-accent-dark); }
.badge--success   { background: var(--color-success-light);   color: var(--color-success); }
.badge--warning   { background: var(--color-warning-light);   color: var(--color-warning); }
.badge--error     { background: var(--color-error-light);     color: var(--color-error); }


/* ==========================================================================
   11. CARDS
   ========================================================================== */

.card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--card-radius);
  padding: var(--card-padding);
  box-shadow: var(--card-shadow);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

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


/* ==========================================================================
   12. CONTAINER
   ========================================================================== */

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--space-5);
}

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


/* ==========================================================================
   13. RESPONSIVE — tighten spacing/typography on small screens
   ========================================================================== */

@media (max-width: 768px) {
  .section { padding: var(--space-7) 0; }
  .section__inner, .container { padding: 0 var(--space-4); }
}

@media (max-width: 480px) {
  :root {
    --btn-padding: 0.7rem 1.2rem;
  }
  .section { padding: var(--space-6) 0; }
}