/* =====================================================================
   Green Business Innovation Network — Public site stylesheet
   Style: dark tech premium, glassmorphism, green/blue accent system
   ===================================================================== */

:root {
  /* Color tokens */
  --color-bg: #090D12;
  --color-bg-elevated: #0E1420;
  --color-surface: #121A26;
  --color-primary: #22C55E;
  --color-primary-dark: #15803D;
  --color-primary-light: #4ADE80;
  --color-accent: #3B82F6;
  --color-accent-light: #60A5FA;
  --color-text: #F1F5F9;
  --color-text-muted: #94A3B8;
  --color-text-faint: #64748B;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-danger: #EF4444;
  --color-success: #22C55E;

  --glass-bg: rgba(255, 255, 255, 0.045);
  --glass-bg-strong: rgba(255, 255, 255, 0.08);
  --glass-border: rgba(255, 255, 255, 0.12);
  --glass-blur: 16px;

  /* Radii */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --radius-full: 999px;

  /* Spacing scale (16-64px marketing density) */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;

  /* Shadows / glow */
  --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.35);
  --shadow-glow-green: 0 0 60px rgba(34, 197, 94, 0.18);
  --shadow-glow-blue: 0 0 60px rgba(59, 130, 246, 0.16);

  /* Typography */
  --font-heading: 'Space Grotesk', 'Cairo', sans-serif;
  --font-body: 'DM Sans', 'Cairo', sans-serif;

  /* Motion */
  --ease-standard: cubic-bezier(0.2, 0.8, 0.2, 1);
  --dur-fast: 150ms;
  --dur-base: 250ms;
  --dur-slow: 450ms;

  color-scheme: dark;
}

html[lang="ar"] {
  --font-heading: 'Cairo', 'Space Grotesk', sans-serif;
  --font-body: 'Cairo', 'DM Sans', sans-serif;
}
/* A "forward" arrow (next/continue cue) must keep pointing toward
   reading-forward, which is leftward in RTL. Scoped to an explicit
   class rather than "any icon in a button" so non-directional icons
   (check, globe, calendar...) are never mirrored by mistake. */
[dir="rtl"] .icon-flip-rtl {
  transform: scaleX(-1);
}

*, *::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;
  background-color: var(--color-bg);
  background-image:
    radial-gradient(60% 50% at 15% 0%, rgba(34, 197, 94, 0.16) 0%, rgba(34, 197, 94, 0) 60%),
    radial-gradient(50% 45% at 100% 20%, rgba(59, 130, 246, 0.14) 0%, rgba(59, 130, 246, 0) 60%),
    radial-gradient(40% 40% at 50% 100%, rgba(34, 197, 94, 0.08) 0%, rgba(34, 197, 94, 0) 60%);
  background-repeat: no-repeat;
  background-attachment: fixed;
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-align: start;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  margin: 0 0 var(--space-3);
  letter-spacing: -0.01em;
}
h1 { font-size: clamp(2.25rem, 4vw + 1rem, 3.75rem); font-weight: 700; }
h2 { font-size: clamp(1.75rem, 2.4vw + 1rem, 2.75rem); font-weight: 700; }
h3 { font-size: clamp(1.25rem, 1.2vw + 1rem, 1.5rem); }
p { margin: 0 0 var(--space-4); color: var(--color-text-muted); max-width: 68ch; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { padding-inline-start: 1.2em; }

.skip-link {
  position: absolute; inset-inline-start: -999px; top: 0;
  background: var(--color-primary); color: #06170E;
  padding: 10px 16px; border-radius: var(--radius-sm); z-index: 1000;
  font-weight: 600;
}
.skip-link:focus {
  inset-inline-start: var(--space-4); top: var(--space-4);
}

:focus-visible {
  outline: 2px solid var(--color-primary-light);
  outline-offset: 3px;
  border-radius: 4px;
}

.container {
  width: 100%;
  max-width: 1240px;
  margin-inline: auto;
  padding-inline: var(--space-5);
}

.section { padding-block: var(--space-9); }
.section--tight { padding-block: var(--space-7); }
.eyebrow {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-size: 0.8rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--color-primary-light);
  margin-bottom: var(--space-3);
}
.eyebrow::before {
  content: ""; width: 8px; height: 8px; border-radius: 50%;
  background: var(--color-primary); box-shadow: 0 0 12px var(--color-primary);
}
.section-head { max-width: 720px; margin-bottom: var(--space-7); }
.section-head--center { margin-inline: auto; text-align: center; }

/* ---------------------------------------------------------------
   Buttons
   --------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  font-family: var(--font-body); font-weight: 600; font-size: 0.95rem;
  padding: 13px 26px; border-radius: var(--radius-full);
  border: 1px solid transparent; cursor: pointer;
  transition: transform var(--dur-fast) var(--ease-standard), box-shadow var(--dur-base) var(--ease-standard), background-color var(--dur-base) var(--ease-standard);
  white-space: nowrap;
}
.btn:active { transform: scale(0.97); }
.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #04150B;
  box-shadow: 0 6px 24px rgba(34, 197, 94, 0.35);
}
.btn-primary:hover { box-shadow: 0 10px 32px rgba(34, 197, 94, 0.5); transform: translateY(-1px); }
.btn-secondary {
  background: var(--glass-bg); border-color: var(--glass-border); color: var(--color-text);
  backdrop-filter: blur(var(--glass-blur)); -webkit-backdrop-filter: blur(var(--glass-blur));
}
.btn-secondary:hover { background: var(--glass-bg-strong); }
.btn-block { width: 100%; }
.btn-sm { padding: 9px 18px; font-size: 0.85rem; }

/* ---------------------------------------------------------------
   Glass surfaces
   --------------------------------------------------------------- */
.glass {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border-radius: var(--radius-lg);
}
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-card);
  transition: transform var(--dur-base) var(--ease-standard), border-color var(--dur-base) var(--ease-standard);
}
.card:hover { transform: translateY(-4px); border-color: rgba(34, 197, 94, 0.35); }
.card-icon {
  width: 52px; height: 52px; border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  background: rgba(34, 197, 94, 0.12); color: var(--color-primary-light);
  margin-bottom: var(--space-4);
}
.card-icon svg { width: 24px; height: 24px; }

/* ---------------------------------------------------------------
   Navbar
   --------------------------------------------------------------- */
.navbar {
  position: sticky; top: 0; z-index: 100;
  border-block-end: 1px solid var(--color-border);
}
/* The frosted-glass background lives on a ::before, not on .navbar
   itself: backdrop-filter/filter on an element creates a new CSS
   containing block for ITS OWN position:fixed descendants (spec
   behavior), which would trap the mobile full-screen menu (a fixed
   descendant of .navbar via .nav-links) inside the navbar's own
   ~64px box instead of covering the viewport. Keeping the filter on
   a pseudo-element (no descendants of its own) avoids that trap
   entirely while producing the same visual effect. */
.navbar::before {
  content: "";
  position: absolute; inset: 0; z-index: -1;
  background: rgba(9, 13, 18, 0.72);
  backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
}
.navbar-inner { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); padding-block: var(--space-3); }
.brand { display: flex; align-items: center; gap: var(--space-2); font-family: var(--font-heading); font-weight: 700; font-size: 1.1rem; }
.brand-mark {
  width: 34px; height: 34px; border-radius: 10px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  display: flex; align-items: center; justify-content: center; color: #06170E; font-weight: 800;
}
.brand-logo { height: 34px; width: auto; max-width: 160px; object-fit: contain; }
.primary-nav { display: flex; align-items: center; gap: var(--space-6); }
.nav-links { display: flex; align-items: center; gap: var(--space-5); list-style: none; margin: 0; padding: 0; flex-wrap: nowrap; }
.nav-links a { display: inline-block; white-space: nowrap; color: var(--color-text-muted); font-weight: 500; font-size: 0.92rem; transition: color var(--dur-fast) var(--ease-standard); }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--color-text); }
.nav-right { display: flex; align-items: center; gap: var(--space-3); }
.nav-toggle { display: none; background: none; border: 1px solid var(--color-border); border-radius: var(--radius-sm); padding: 8px; color: var(--color-text); cursor: pointer; }

.search-form { position: relative; }
.search-input {
  width: 200px; padding: 9px 14px; border-radius: var(--radius-full);
  border: 1px solid var(--color-border); background: var(--glass-bg); color: var(--color-text);
  font-family: var(--font-body); font-size: 0.85rem;
  transition: width var(--dur-base) var(--ease-standard), border-color var(--dur-base) var(--ease-standard);
}
.search-input:focus { width: 240px; border-color: var(--color-primary); }
.search-input::placeholder { color: var(--color-text-faint); }

.lang-switch { display: flex; align-items: center; gap: 2px; background: var(--glass-bg); border: 1px solid var(--color-border); border-radius: var(--radius-full); padding: 3px; }
.lang-switch a { padding: 5px 10px; border-radius: var(--radius-full); font-size: 0.78rem; font-weight: 600; color: var(--color-text-faint); }
.lang-switch a[aria-current="true"] { background: var(--color-primary); color: #04150B; }

/* ---------------------------------------------------------------
   Hero
   --------------------------------------------------------------- */
.hero { padding-block: var(--space-9); position: relative; overflow: clip; }
.hero-content { max-width: 780px; }
.hero-cta-row { display: flex; flex-wrap: wrap; gap: var(--space-4); margin-top: var(--space-6); }

/* ---------------------------------------------------------------
   Stats strip
   --------------------------------------------------------------- */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-5); }
.stat-item { text-align: center; padding: var(--space-5); }
.stat-value { font-family: var(--font-heading); font-size: clamp(2rem, 3vw, 2.75rem); font-weight: 700; color: var(--color-primary-light); }
.stat-label { color: var(--color-text-muted); font-size: 0.9rem; margin-top: var(--space-1); }

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

/* ---------------------------------------------------------------
   Program / news / event cards
   --------------------------------------------------------------- */
.media-card { overflow: hidden; padding: 0; }
.media-card-img { width: 100%; aspect-ratio: 16/10; object-fit: cover; background: var(--color-bg-elevated); }
.media-card-body { padding: var(--space-5); }
.media-card-date { color: var(--color-primary-light); font-size: 0.8rem; font-weight: 600; margin-bottom: var(--space-2); }

.testimonial-card { display: flex; flex-direction: column; gap: var(--space-4); }
.testimonial-quote { font-size: 1.05rem; color: var(--color-text); }
.testimonial-author { display: flex; align-items: center; gap: var(--space-3); }
.avatar { width: 44px; height: 44px; border-radius: 50%; object-fit: cover; background: var(--color-bg-elevated); }

.team-card { text-align: center; }
.team-photo { width: 96px; height: 96px; border-radius: 50%; object-fit: cover; margin-inline: auto; margin-bottom: var(--space-4); background: var(--color-bg-elevated); border: 2px solid var(--color-border); }

.partner-logo-grid { display: flex; flex-wrap: wrap; gap: var(--space-6); align-items: center; justify-content: center; }
.partner-logo-grid img { height: 40px; width: auto; opacity: 0.75; filter: grayscale(1) brightness(1.6); transition: opacity var(--dur-base), filter var(--dur-base); }
.partner-logo-grid img:hover { opacity: 1; filter: none; }

/* ---------------------------------------------------------------
   Forms
   --------------------------------------------------------------- */
.form-group { margin-bottom: var(--space-5); }
label { display: block; font-size: 0.88rem; font-weight: 600; margin-bottom: var(--space-2); color: var(--color-text); }
.required-mark { color: var(--color-primary-light); margin-inline-start: 2px; }
input[type="text"], input[type="email"], input[type="tel"], input[type="search"], input[type="password"], textarea, select {
  width: 100%; padding: 13px 16px; border-radius: var(--radius-md);
  border: 1px solid var(--color-border); background: var(--color-bg-elevated); color: var(--color-text);
  font-family: var(--font-body); font-size: 0.95rem;
  transition: border-color var(--dur-fast) var(--ease-standard);
}
input:focus, textarea:focus, select:focus { border-color: var(--color-primary); }
textarea { min-height: 130px; resize: vertical; }
.helper-text { font-size: 0.82rem; color: var(--color-text-faint); margin-top: var(--space-1); }
.field-error { font-size: 0.82rem; color: var(--color-danger); margin-top: var(--space-1); }

.alert { padding: var(--space-4) var(--space-5); border-radius: var(--radius-md); margin-bottom: var(--space-5); font-size: 0.9rem; }
.alert-success { background: rgba(34, 197, 94, 0.12); border: 1px solid rgba(34, 197, 94, 0.35); color: var(--color-primary-light); }
.alert-error { background: rgba(239, 68, 68, 0.12); border: 1px solid rgba(239, 68, 68, 0.35); color: #FCA5A5; }

/* ---------------------------------------------------------------
   Footer
   --------------------------------------------------------------- */
.site-footer { border-block-start: 1px solid var(--color-border); padding-block: var(--space-8) var(--space-6); background: var(--color-bg-elevated); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: var(--space-7); margin-bottom: var(--space-7); }
.footer-heading { font-size: 0.85rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: var(--space-4); color: var(--color-text); }
.footer-links { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: var(--space-3); }
.footer-links a { color: var(--color-text-muted); font-size: 0.9rem; transition: color var(--dur-fast); }
.footer-links a:hover { color: var(--color-primary-light); }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-3); padding-top: var(--space-6); border-top: 1px solid var(--color-border); font-size: 0.82rem; color: var(--color-text-faint); }
.social-row { display: flex; gap: var(--space-3); }
.social-row a { width: 38px; height: 38px; border-radius: 50%; display: flex; align-items: center; justify-content: center; background: var(--glass-bg); border: 1px solid var(--color-border); transition: background var(--dur-fast); }
.social-row a:hover { background: var(--glass-bg-strong); }

/* ---------------------------------------------------------------
   Utilities
   --------------------------------------------------------------- */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.badge { display: inline-flex; align-items: center; gap: 6px; padding: 4px 12px; border-radius: var(--radius-full); font-size: 0.75rem; font-weight: 600; background: var(--glass-bg); border: 1px solid var(--color-border); color: var(--color-text-muted); }
.breadcrumb { display: flex; gap: var(--space-2); font-size: 0.85rem; color: var(--color-text-faint); margin-bottom: var(--space-5); }
.breadcrumb a { color: var(--color-text-muted); }
.breadcrumb a:hover { color: var(--color-primary-light); }
.empty-state { text-align: center; padding: var(--space-9) var(--space-5); color: var(--color-text-muted); }

/* ---------------------------------------------------------------
   Scroll reveal (progressive enhancement; JS adds .is-visible)
   --------------------------------------------------------------- */
[data-reveal] {
  opacity: 0; transform: translateY(16px);
  transition: opacity var(--dur-slow) var(--ease-standard), transform var(--dur-slow) var(--ease-standard);
}
[data-reveal].is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; }
}

/* ---------------------------------------------------------------
   Responsive
   --------------------------------------------------------------- */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 1100px) {
  .primary-nav { display: none; }
  .nav-toggle { display: inline-flex; }
  body.nav-open .primary-nav {
    display: flex; flex-direction: column; gap: var(--space-6);
    position: fixed; inset-inline: 0; top: 64px; bottom: 0;
    padding: var(--space-6); background: var(--color-bg); z-index: 90; overflow-y: auto;
  }
  body.nav-open .primary-nav .nav-links { flex-direction: column; align-items: stretch; gap: var(--space-5); }
  body.nav-open .primary-nav .search-form { width: 100%; }
  body.nav-open .primary-nav .search-input,
  body.nav-open .primary-nav .search-input:focus { width: 100%; }
}
@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-5); }
  .section { padding-block: var(--space-7); }
  h1 { font-size: 2.1rem; }
}