/* ============================================================
   RAVEN DIGITAL STUDIO — style.css
   "The Aesthetic Logic"
   digital.ravenhayes.com
   ============================================================ */

/* ── Google Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=Inter:wght@300;400;500;600&display=swap');

/* ── CSS Variables ── */
:root {
  /* Core Palette */
  --deep-navy:     #07090f;
  --navy-mid:      #0d1120;
  --navy-surface:  #111827;
  --navy-border:   #1e2a3a;
  --warm-gold:     #c8a045;
  --gold-dim:      #8a6d2e;
  --gold-glow:     rgba(200, 160, 69, 0.12);
  --gold-line:     rgba(200, 160, 69, 0.3);
  --electric-blue: #4a9eff;
  --blue-dim:      rgba(74, 158, 255, 0.15);
  --white:         #f0f2f7;
  --white-dim:     rgba(240, 242, 247, 0.7);
  --muted:         #8892a4;
  --muted-dim:     #505a6e;

  /* Typography */
  --font-head:  'Space Grotesk', sans-serif;
  --font-body:  'Inter', sans-serif;

  /* Spacing */
  --space-xs:   0.5rem;
  --space-sm:   1rem;
  --space-md:   1.5rem;
  --space-lg:   2.5rem;
  --space-xl:   4rem;
  --space-2xl:  6rem;
  --space-3xl:  9rem;

  /* Layout */
  --max-width:  1200px;
  --nav-height: 72px;

  /* Transitions */
  --ease:       cubic-bezier(0.16, 1, 0.3, 1);
  --fast:       0.18s;
  --mid:        0.35s;
  --slow:       0.6s;

  /* Borders */
  --radius-sm:  4px;
  --radius-md:  8px;
  --radius-lg:  16px;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-body);
  background-color: var(--deep-navy);
  color: var(--white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--deep-navy); }
::-webkit-scrollbar-thumb { background: var(--gold-dim); border-radius: 2px; }

/* ── Selection ── */
::selection { background: var(--warm-gold); color: var(--deep-navy); }

/* ── Typography Scale ── */
h1, h2, h3, h4, h5 {
  font-family: var(--font-head);
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-weight: 600;
}

h1 { font-size: clamp(2.8rem, 6vw, 5.5rem); }
h2 { font-size: clamp(2rem, 4vw, 3.2rem); }
h3 { font-size: clamp(1.4rem, 2.5vw, 1.9rem); }
h4 { font-size: 1.2rem; }

p { color: var(--white-dim); font-size: 1.05rem; }
small { font-size: 0.8rem; color: var(--muted); }

/* ── Layout Utilities ── */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.section { padding: var(--space-3xl) 0; }
.section-sm { padding: var(--space-xl) 0; }

/* ── Gold Accent Elements ── */
.gold { color: var(--warm-gold); }
.gold-border { border: 1px solid var(--gold-line); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-head);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--warm-gold);
  margin-bottom: var(--space-md);
}

.eyebrow::before {
  content: '';
  display: block;
  width: 24px;
  height: 1px;
  background: var(--warm-gold);
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-head);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius-sm);
  transition: all var(--mid) var(--ease);
  white-space: nowrap;
}

.btn-primary {
  background: var(--warm-gold);
  color: var(--deep-navy);
}

.btn-primary:hover {
  background: #ddb84f;
  transform: translateY(-1px);
  box-shadow: 0 8px 30px rgba(200, 160, 69, 0.3);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1px solid var(--navy-border);
}

.btn-outline:hover {
  border-color: var(--gold-line);
  color: var(--warm-gold);
  background: var(--gold-glow);
}

.btn-ghost {
  background: transparent;
  color: var(--warm-gold);
  padding: 0;
  font-size: 0.875rem;
}

.btn-ghost:hover { opacity: 0.75; }

.btn svg { width: 16px; height: 16px; transition: transform var(--fast) var(--ease); }
.btn:hover svg { transform: translateX(3px); }

/* ── Navigation ── */
#rds-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: rgba(7, 9, 15, 0.9);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--mid) var(--ease);
}

#rds-nav.scrolled {
  border-bottom-color: var(--navy-border);
}

.nav-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.nav-brand-logo {
  width: 36px;
  height: 36px;
  object-fit: contain;
}

.nav-brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.nav-brand-name {
  font-family: var(--font-head);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--white);
  letter-spacing: 0.01em;
}

.nav-brand-sub {
  font-size: 0.65rem;
  font-weight: 400;
  color: var(--warm-gold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

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

.nav-link {
  font-family: var(--font-head);
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--muted);
  letter-spacing: 0.02em;
  transition: color var(--fast) var(--ease);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--warm-gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--fast) var(--ease);
}

.nav-link:hover,
.nav-link.active {
  color: var(--white);
}

.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
}

.nav-cta { margin-left: var(--space-sm); }

.nav-mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
}

.nav-mobile-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--white);
  transition: all var(--fast) var(--ease);
}

.nav-mobile-toggle.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-mobile-toggle.open span:nth-child(2) { opacity: 0; }
.nav-mobile-toggle.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ── Mobile Nav Drawer ── */
.nav-drawer {
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: var(--navy-mid);
  border-bottom: 1px solid var(--navy-border);
  padding: var(--space-md) var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  transform: translateY(-110%);
  opacity: 0;
  transition: transform var(--mid) var(--ease), opacity var(--mid) var(--ease);
  z-index: 999;
}

.nav-drawer.open {
  transform: translateY(0);
  opacity: 1;
}

.nav-drawer .nav-link {
  font-size: 1rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--navy-border);
}

/* ── Cards ── */
.card {
  background: var(--navy-surface);
  border: 1px solid var(--navy-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  transition: border-color var(--mid) var(--ease), transform var(--mid) var(--ease);
}

.card:hover {
  border-color: var(--gold-line);
  transform: translateY(-3px);
}

.card-icon {
  width: 44px;
  height: 44px;
  background: var(--gold-glow);
  border: 1px solid var(--gold-line);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-sm);
  color: var(--warm-gold);
  font-size: 1.1rem;
}

/* ── Dividers ── */
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--navy-border), transparent);
  border: none;
  margin: 0;
}

.gold-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--warm-gold), transparent);
  border: none;
  opacity: 0.3;
  margin: 0;
}

/* ── Tags / Chips ── */
.tag {
  display: inline-block;
  font-family: var(--font-head);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--warm-gold);
  background: var(--gold-glow);
  border: 1px solid var(--gold-line);
  border-radius: 2px;
  padding: 3px 10px;
}

/* ── Section Titles ── */
.section-title {
  max-width: 640px;
}

.section-title h2 { margin-bottom: var(--space-sm); }
.section-title p { font-size: 1.1rem; max-width: 520px; }

/* ── Grid Systems ── */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-lg); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-lg); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-md); }

/* ── Process Steps ── */
.process-step {
  position: relative;
  padding-left: var(--space-lg);
}

.process-step::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 1px;
  height: calc(100% + var(--space-lg));
  background: var(--navy-border);
}

.process-step:last-child::before { display: none; }

.step-number {
  font-family: var(--font-head);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--warm-gold);
  text-transform: uppercase;
  margin-bottom: 0.4rem;
}

/* ── Footer ── */
#rds-footer {
  background: var(--navy-mid);
  border-top: 1px solid var(--navy-border);
  padding: var(--space-2xl) 0 var(--space-lg);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--navy-border);
  margin-bottom: var(--space-lg);
}

.footer-brand p {
  margin-top: var(--space-sm);
  font-size: 0.9rem;
  max-width: 280px;
}

.footer-col h5 {
  font-family: var(--font-head);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: var(--space-sm);
}

.footer-col ul { display: flex; flex-direction: column; gap: 0.5rem; }

.footer-col a {
  font-size: 0.875rem;
  color: var(--muted);
  transition: color var(--fast) var(--ease);
}

.footer-col a:hover { color: var(--warm-gold); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
}

.footer-bottom p {
  font-size: 0.8rem;
  color: var(--muted-dim);
}

.footer-bottom a { color: var(--muted); }
.footer-bottom a:hover { color: var(--warm-gold); }

/* ── Animations ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes shimmer {
  0%   { background-position: -200% center; }
  100% { background-position: 200% center; }
}

@keyframes pulse-ring {
  0%   { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(1.6); opacity: 0; }
}

.animate-fade-up {
  animation: fadeUp 0.7s var(--ease) both;
}

.animate-fade-up-delay-1 { animation: fadeUp 0.7s 0.1s var(--ease) both; }
.animate-fade-up-delay-2 { animation: fadeUp 0.7s 0.2s var(--ease) both; }
.animate-fade-up-delay-3 { animation: fadeUp 0.7s 0.3s var(--ease) both; }
.animate-fade-up-delay-4 { animation: fadeUp 0.7s 0.4s var(--ease) both; }
.animate-fade-up-delay-5 { animation: fadeUp 0.7s 0.5s var(--ease) both; }

/* ── Gold Shimmer Text ── */
.text-shimmer {
  background: linear-gradient(
    90deg,
    var(--warm-gold) 0%,
    #f0d080 40%,
    var(--warm-gold) 60%,
    #a07830 100%
  );
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 4s linear infinite;
}

/* ── Geometric Accent ── */
.geo-line {
  display: block;
  width: 48px;
  height: 2px;
  background: var(--warm-gold);
  margin-bottom: var(--space-sm);
}

/* ── Noise Texture Overlay ── */
.noise-overlay {
  position: absolute;
  inset: 0;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  pointer-events: none;
}

/* ── Page Wrapper ── */
.page-wrap {
  padding-top: var(--nav-height);
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .footer-top { grid-template-columns: 1fr 1fr; gap: var(--space-lg); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  :root {
    --space-xl:  2.5rem;
    --space-2xl: 4rem;
    --space-3xl: 5rem;
  }

  .container { padding: 0 var(--space-sm); }

  .nav-links, .nav-cta { display: none; }
  .nav-mobile-toggle { display: flex; }

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

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