/* =========================================================
   SUNRAYSX — navbar.css
   Shared design tokens + navigation styles
   Include this on EVERY page: home, portfolio, contact
   ========================================================= */

/* === GOOGLE FONTS IMPORT ===
   Add this <link> in every page <head> before navbar.css:
   <link href="https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital@0;1&family=DM+Sans:wght@300;400;500;600&display=swap" rel="stylesheet">
*/

/* === DESIGN TOKENS === */
:root {
  /* Brand colours */
  --navy:         #0d1f35;
  --navy-mid:     #132d4d;
  --navy-light:   #1a3a58;

  /* Sun colour palette — 3 professional sun tones */
  --sun-gold:     #E8A030;   /* warm solar gold  — primary accent    */
  --sun-amber:    #C8751A;   /* deep amber        — secondary accent  */
  --sun-dawn:     #B85A0A;   /* rich sunrise rust — tertiary / hover  */

  /* Legacy aliases so all var(--teal/gold) references resolve correctly */
  --teal:         var(--sun-amber);
  --teal-light:   var(--sun-gold);
  --teal-glow:    rgba(200,117,26,0.18);
  --gold:         var(--sun-gold);
  --gold-light:   #f0be6a;
  --gold-glow:    rgba(232,160,48,0.18);

  /* Neutral palette */
  --slate:        #e8edf3;
  --light-bg:     #f4f7fb;
  --white:        #ffffff;
  --text:         #1a2535;
  --text-light:   #4a5568;
  --mid-gray:     #6b7a8d;
  --border:       rgba(13,31,53,0.08);

  /* Status */
  --success:      #28a06a;
  --error:        #d94f4f;

  /* Typography */
  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body:    'DM Sans', system-ui, sans-serif;

  /* Spacing */
  --radius-sm:    6px;
  --radius-md:    14px;
  --radius-lg:    22px;
  --radius-pill:  50px;

  /* Shadows */
  --shadow-sm:    0 2px 8px rgba(13,31,53,0.08);
  --shadow-md:    0 6px 24px rgba(13,31,53,0.12);
  --shadow-lg:    0 16px 48px rgba(13,31,53,0.18);
  --shadow-xl:    0 28px 72px rgba(13,31,53,0.22);

  /* Motion */
  --ease:         0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

/* === GLOBAL RESET === */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--text);
  background: var(--light-bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* === LAYOUT UTILITY === */
.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 28px;
}

/* =========================================================
   NAV — Fixed top bar, shared across all pages
   ========================================================= */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  /* Solid bg avoids backdrop-filter repaint flicker on scroll */
  background: rgba(13, 31, 53, 0.97);
  border-bottom: 1px solid rgba(255,255,255,0.07);
  transition: background var(--ease), box-shadow var(--ease);
  /* GPU-promote nav so it never triggers a repaint on scroll */
  transform: translateZ(0);
  -webkit-transform: translateZ(0);
  will-change: background, box-shadow;
  /* Isolate stacking context to prevent child repaint bleed */
  isolation: isolate;
}

.nav.scrolled {
  background: rgba(13, 31, 53, 1);
  box-shadow: 0 4px 24px rgba(0,0,0,0.3);
}

.nav-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 28px;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

/* Logo */
.nav-logo {
  font-family: var(--font-display);
  font-size: 1.55rem;
  color: var(--white);
  letter-spacing: -0.03em;
  flex-shrink: 0;
  transition: opacity var(--ease);
}

.nav-logo:hover { opacity: 0.85; }

/* Desktop links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-links li a {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(255,255,255,0.65);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  letter-spacing: 0.02em;
  transition: color var(--ease), background var(--ease);
}

.nav-links li a:hover {
  color: var(--white);
  background: rgba(255,255,255,0.07);
}

.nav-links li a.active {
  color: var(--gold-light);
  background: rgba(232,160,48,0.1);
}

/* CTA button in nav */
.nav-cta {
  flex-shrink: 0;
}

.nav-cta a {
  display: inline-block;
  background: linear-gradient(135deg, var(--teal), var(--teal-light));
  color: var(--white) !important;
  font-size: 0.82rem !important;
  font-weight: 600 !important;
  padding: 9px 20px !important;
  border-radius: var(--radius-pill) !important;
  letter-spacing: 0.04em;
  box-shadow: 0 4px 16px rgba(200,117,26,0.35);
  transition: transform var(--ease), box-shadow var(--ease), opacity var(--ease) !important;
  background-color: transparent !important;
}

.nav-cta a:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 22px rgba(200,117,26,0.5) !important;
  opacity: 1 !important;
  color: var(--white) !important;
}

/* Hamburger (mobile) */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 34px;
  height: 34px;
  cursor: pointer;
  padding: 4px;
  border-radius: var(--radius-sm);
  transition: background var(--ease);
}

.nav-hamburger:hover { background: rgba(255,255,255,0.08); }

.nav-hamburger span {
  display: block;
  height: 2px;
  background: rgba(255,255,255,0.8);
  border-radius: 2px;
  transition: transform var(--ease), opacity var(--ease), width var(--ease);
}

.nav-hamburger span:nth-child(2) { width: 70%; }

.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); width: 100%; }

/* Mobile drawer */
.nav-mobile {
  display: none;
  position: fixed;
  top: 70px; left: 0; right: 0;
  background: rgba(13, 28, 50, 0.99);
  border-bottom: 1px solid rgba(255,255,255,0.07);
  padding: 20px 28px 28px;
  z-index: 199;
  flex-direction: column;
  gap: 4px;
  animation: slideDown 0.22s ease-out;
  transform: translateZ(0);
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.nav-mobile.open { display: flex; }

.nav-mobile a {
  font-size: 1rem;
  font-weight: 500;
  color: rgba(255,255,255,0.7);
  padding: 12px 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: color var(--ease);
}

.nav-mobile a:last-child { border-bottom: none; }

.nav-mobile a:hover,
.nav-mobile a.active { color: var(--gold-light); }

/* === SHARED FOOTER === */
.footer {
  background: var(--navy);
  padding: 40px 0;
  border-top: 1px solid rgba(255,255,255,0.06);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--white);
  letter-spacing: -0.02em;
}

/* Shared logo accent — same golden colour in nav + footer on every page */
.nav-logo .logo-accent,
.footer-logo .logo-accent {
  color: var(--sun-gold);
}

.footer p {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.4);
}

.footer-nav {
  display: flex;
  gap: 24px;
}

.footer-nav a {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.45);
  transition: color var(--ease);
}

.footer-nav a:hover { color: var(--gold-light); }

/* === SHARED BUTTON STYLES === */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--teal), var(--teal-light));
  color: var(--white);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 14px 36px;
  border-radius: var(--radius-pill);
  letter-spacing: 0.04em;
  border: none;
  cursor: pointer;
  box-shadow: 0 6px 24px rgba(200,117,26,0.4);
  transition: transform var(--ease), box-shadow var(--ease), opacity var(--ease);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 32px rgba(200,117,26,0.55);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--white);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 13px 30px;
  border-radius: var(--radius-pill);
  letter-spacing: 0.04em;
  border: 1.5px solid rgba(255,255,255,0.4);
  cursor: pointer;
  transition: background var(--ease), border-color var(--ease);
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.7);
}

/* === RESPONSIVE BREAKPOINTS === */
@media (max-width: 900px) {
  .nav-links, .nav-cta { display: none; }
  .nav-hamburger { display: flex; }
}

@media (max-width: 640px) {
  .nav-inner { padding: 0 20px; }
  .footer-inner { flex-direction: column; text-align: center; }
  .footer-nav { justify-content: center; }
}

@media (max-width: 480px) {
  .nav-inner { padding: 0 14px; gap: 12px; height: 60px; }
  .nav-logo { font-size: 1.3rem; }
  .nav-mobile { top: 60px; padding: 16px 20px 24px; }
  .container { padding: 0 16px; }
  .btn-primary,
  .btn-secondary { font-size: 0.88rem; padding: 12px 24px; }
  .footer { padding: 28px 0; }
  .footer-nav { gap: 16px; }
}

/* === NAV SCROLL SCRIPT (paste before </body> on every page) ===

<script>
  const nav = document.querySelector('.nav');
  const hamburger = document.getElementById('navHamburger');
  const mobileMenu = document.getElementById('navMobile');

  window.addEventListener('scroll', () => {
    nav.classList.toggle('scrolled', window.scrollY > 40);
  });

  hamburger?.addEventListener('click', () => {
    hamburger.classList.toggle('open');
    mobileMenu.classList.toggle('open');
  });

  // Close mobile menu on link click
  mobileMenu?.querySelectorAll('a').forEach(a => {
    a.addEventListener('click', () => {
      hamburger.classList.remove('open');
      mobileMenu.classList.remove('open');
    });
  });
</script>

*/
