/* ============================================================
   INSPIREWORKS — MAIN STYLESHEET
   ============================================================
   TABLE OF CONTENTS
   1.  CSS Custom Properties (Brand Tokens)
   2.  Base & Global Styles
   3.  Typography
   4.  Layout Utilities
   5.  Site Header & Navigation
   6.  Mobile Navigation
   7.  Buttons & CTAs
   8.  Sections & Spacing
   9.  Cards
   10. Site Footer
   11. Utilities & Animations
   12. Responsive Breakpoints
   ============================================================ */


/* ============================================================
   1. CSS CUSTOM PROPERTIES
   ============================================================ */
:root {
  /* Brand colours */
  --clr-green:    #9aca3f;
  --clr-yellow:   #e2e321;
  --clr-blue:     #07b0db;
  --clr-magenta:  #ce287b;
  --clr-black:    #2a2b2b;

  /* Neutrals */
  --clr-white:     #ffffff;
  --clr-off-white: #f7f7f5;
  --clr-light:     #f0f0ed;
  --clr-mid:       #c8c8c4;
  --clr-muted:     #767674;
  --clr-dark:      #1a1b1b;
  --clr-border:    #e0e0dc;

  /* Semantic */
  --clr-text-primary:   var(--clr-black);
  --clr-text-secondary: var(--clr-muted);
  --clr-text-inverse:   var(--clr-white);
  --clr-bg-primary:     var(--clr-white);
  --clr-bg-secondary:   var(--clr-off-white);
  --clr-bg-dark:        var(--clr-black);
  --clr-accent:         var(--clr-green);

  /* Typography */
  /* NOTE: Replace 'Nunito' with 'Sofia Pro' once licensed fonts are installed */
  --font-heading: 'Nunito', 'Arial Black', sans-serif;
  --font-accent:  'Playfair Display', Georgia, serif;
  --font-body:    'Nunito', 'Arial', sans-serif;

  /* Font sizes */
  --fs-xs:   0.75rem;   /* 12px */
  --fs-sm:   0.875rem;  /* 14px */
  --fs-base: 1rem;      /* 16px */
  --fs-md:   1.125rem;  /* 18px */
  --fs-lg:   1.25rem;   /* 20px */
  --fs-xl:   1.5rem;    /* 24px */
  --fs-2xl:  2rem;      /* 32px */
  --fs-3xl:  2.5rem;    /* 40px */

  /* Spacing scale */
  --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-14: 3.5rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Layout */
  --container-max:     1200px;
  --container-padding: clamp(1rem, 5vw, 2rem);
  --header-height:     80px;
  --border-radius:     8px;
  --border-radius-lg:  12px;

  /* Transitions */
  --transition-fast:   0.15s ease;
  --transition-base:   0.25s ease;
  --transition-slow:   0.4s ease;

  /* Shadows */
  --shadow-sm:  0 1px 3px rgba(0,0,0,0.08);
  --shadow-md:  0 4px 16px rgba(0,0,0,0.1);
  --shadow-lg:  0 12px 40px rgba(0,0,0,0.12);
}


/* ============================================================
   2. BASE & GLOBAL STYLES
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; }

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

body {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  color: var(--clr-text-primary);
  background-color: var(--clr-bg-primary);
  line-height: 1.6;
  margin: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

ul { list-style: none; margin: 0; padding: 0; }
p  { margin: 0; }
h1, h2, h3, h4, h5, h6 { margin: 0; line-height: 1.1; }

:focus-visible {
  outline: 2px solid var(--clr-green);
  outline-offset: 3px;
  border-radius: 3px;
}


/* ============================================================
   3. TYPOGRAPHY
   ============================================================ */
.heading-1 {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  letter-spacing: -0.03em;
  line-height: 1.05;
}

.heading-2 {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.heading-3 {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  letter-spacing: -0.01em;
}

.accent-text {
  font-family: var(--font-accent);
  font-style: italic;
  font-weight: 600;
}

.text-green   { color: var(--clr-green); }
.text-blue    { color: var(--clr-blue); }
.text-magenta { color: var(--clr-magenta); }
.text-muted   { color: var(--clr-text-secondary); }
.text-white   { color: var(--clr-white); }


/* ============================================================
   4. LAYOUT UTILITIES
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

.section-pad {
  padding-block: var(--space-24);
}

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-12); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-6); }

.flex-center { display: flex; align-items: center; justify-content: center; }
.text-center { text-align: center; }

.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;
}


/* ============================================================
   5. SITE HEADER & NAVIGATION
   ============================================================ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-height);
  z-index: 1000;
  transition: background-color var(--transition-base), box-shadow var(--transition-base);
}

/* Default (light pages) */
.site-header {
  background-color: var(--clr-white);
  box-shadow: 0 1px 0 var(--clr-border);
}

/* Dark hero variant — transparent until scrolled */
.site-header.header--dark {
  background-color: transparent;
  box-shadow: none;
}

.site-header.header--dark.is-scrolled {
  background-color: var(--clr-dark);
  box-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

.site-header.is-scrolled:not(.header--dark) {
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo img { display: block; }
.logo--footer img { opacity: 0.9; }

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.nav-link {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: var(--fs-sm);
  letter-spacing: 0.01em;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--border-radius);
  transition: color var(--transition-fast), background-color var(--transition-fast);
  color: var(--clr-black);
}

/* On dark header */
.header--dark .nav-link { color: rgba(255,255,255,0.85); }
.header--dark .nav-link:hover { color: var(--clr-white); }
.header--dark .nav-link.is-active { color: var(--clr-green); }

/* On light header */
.nav-link:hover { color: var(--clr-green); }
.nav-link.is-active { color: var(--clr-green); }

/* CTA nav item */
.nav-link--cta {
  background-color: var(--clr-green);
  color: var(--clr-black) !important;
  padding: var(--space-2) var(--space-5);
  border-radius: 999px;
}
.nav-link--cta:hover {
  background-color: #88b832;
  color: var(--clr-black) !important;
}


/* ============================================================
   6. MOBILE NAVIGATION
   ============================================================ */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  background: none;
  border: none;
  cursor: pointer;
  border-radius: var(--border-radius);
}

.nav-toggle__bar {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--clr-black);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.header--dark .nav-toggle__bar { background-color: var(--clr-white); }

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile nav overlay — created by main.js */
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 998;
}
.nav-overlay.is-active { display: block; }


/* ============================================================
   7. BUTTONS & CTAs
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: var(--fs-base);
  letter-spacing: 0.01em;
  padding: 0.75em 1.75em;
  border-radius: 999px;
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);
  white-space: nowrap;
}

.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn:active { transform: translateY(0); }

/* Sizes */
.btn--lg { font-size: var(--fs-md); padding: 0.85em 2em; }
.btn--sm { font-size: var(--fs-sm); padding: 0.6em 1.4em; }

/* Variants */
.btn--primary {
  background-color: var(--clr-green);
  color: var(--clr-black);
}
.btn--primary:hover { background-color: #88b832; }

.btn--gradient {
  background: linear-gradient(135deg, var(--clr-green) 0%, var(--clr-blue) 100%);
  color: var(--clr-white);
  border: none;
}
.btn--gradient:hover { background: linear-gradient(135deg, #88b832 0%, #06a0c5 100%); }

.btn--outline {
  background: transparent;
  border-color: var(--clr-black);
  color: var(--clr-black);
}
.btn--outline:hover { background: var(--clr-black); color: var(--clr-white); }

.btn--outline-white {
  background: transparent;
  border-color: rgba(255,255,255,0.4);
  color: var(--clr-white);
}
.btn--outline-white:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.8);
}


/* ============================================================
   8. SECTIONS & SPACING
   ============================================================ */
main { padding-top: var(--header-height); }

section { position: relative; }

.section-header {
  margin-bottom: var(--space-14);
}
.section-header--center { text-align: center; }
.section-header p {
  font-size: var(--fs-md);
  color: var(--clr-text-secondary);
  line-height: 1.7;
  margin-top: var(--space-4);
  max-width: 600px;
}
.section-header--center p { margin-inline: auto; }


/* ============================================================
   9. CARDS
   ============================================================ */
.card {
  background: var(--clr-white);
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--clr-border);
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.card__body { padding: var(--space-8); }


/* ============================================================
   10. SITE FOOTER
   ============================================================ */
.site-footer {
  background-color: var(--clr-dark);
  color: var(--clr-white);
  padding-top: var(--space-16);
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-10);
  padding-bottom: var(--space-12);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-tagline {
  font-size: var(--fs-sm);
  color: rgba(255,255,255,0.5);
  line-height: 1.6;
  margin-top: var(--space-4);
}

.footer-nav ul { display: flex; flex-direction: column; gap: var(--space-3); }
.footer-nav a {
  font-size: var(--fs-sm);
  color: rgba(255,255,255,0.6);
  transition: color var(--transition-fast);
}
.footer-nav a:hover { color: var(--clr-green); }

.footer-contact p {
  font-size: var(--fs-sm);
  color: rgba(255,255,255,0.6);
  line-height: 1.7;
}
.footer-contact a { color: rgba(255,255,255,0.6); }
.footer-contact a:hover { color: var(--clr-green); }

.footer-social {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.2);
  color: rgba(255,255,255,0.6);
  font-size: var(--fs-sm);
  font-weight: 900;
  transition: border-color var(--transition-fast), color var(--transition-fast), background-color var(--transition-fast);
}
.social-link:hover {
  border-color: var(--clr-green);
  color: var(--clr-green);
  background-color: rgba(154,202,63,0.08);
}

.footer-bottom {
  padding-block: var(--space-6);
}
.footer-bottom .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
}
.footer-bottom p {
  font-size: var(--fs-xs);
  color: rgba(255,255,255,0.35);
}
.footer-bottom a { color: rgba(255,255,255,0.35); }
.footer-bottom a:hover { color: var(--clr-green); }


/* ============================================================
   11. UTILITIES & ANIMATIONS
   ============================================================ */

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal--delay-1 { transition-delay: 0.1s; }
.reveal--delay-2 { transition-delay: 0.2s; }
.reveal--delay-3 { transition-delay: 0.3s; }
.reveal--delay-4 { transition-delay: 0.4s; }

/* Colour helpers */
.bg-dark    { background-color: var(--clr-black); }
.bg-light   { background-color: var(--clr-off-white); }
.bg-white   { background-color: var(--clr-white); }


/* ============================================================
   12. RESPONSIVE BREAKPOINTS
   ============================================================ */
@media (max-width: 1024px) {
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  /* Show mobile nav toggle */
  .nav-toggle { display: flex; }

  /* Hide desktop nav */
  .primary-nav {
    display: none;
    position: fixed;
    top: 0; right: 0; bottom: 0;
    width: min(320px, 85vw);
    background-color: var(--clr-dark);
    padding: calc(var(--header-height) + var(--space-6)) var(--space-6) var(--space-6);
    z-index: 999;
    overflow-y: auto;
    box-shadow: -4px 0 40px rgba(0,0,0,0.3);
  }
  .primary-nav.is-open { display: block; }

  .nav-list { flex-direction: column; align-items: stretch; gap: 0; }
  .nav-link {
    display: block;
    color: rgba(255,255,255,0.85) !important;
    padding: var(--space-4) var(--space-3);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    font-size: var(--fs-base);
    border-radius: 0;
  }
  .nav-link--cta {
    margin-top: var(--space-4);
    text-align: center;
    border-radius: 999px !important;
    border-bottom: none !important;
  }

  /* Grids → single column */
  .grid-2,
  .grid-3,
  .grid-4 { grid-template-columns: 1fr; }

  .footer-inner { grid-template-columns: 1fr; gap: var(--space-8); }
  .footer-bottom .container { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  :root { --container-padding: 1rem; }
}