/* StratEdge Consulting — global styles layered on Tailwind CDN */

:root {
  --paper-white: #FBFBFA;
  --navy-950: #0D1B2E;   /* deeper shade — weightier bands */
  --navy-900: #142845;
  --navy-700: #24405F;
  --navy-050: #EEF1F5;   /* light navy tint — alternating sections */
  --stone-200: #E7E4DD;
  --brass-600: #8A6A25;  /* deeper brass for small text on light surfaces */
  --brass-500: #A9822F;
  --brass-100: #F3EAD8;  /* brass whisper — rules and hairline borders */
  --ink-800: #1C1C1C;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--paper-white);
  color: var(--ink-800);
  font-family: 'Inter', system-ui, sans-serif;
  line-height: 1.6;
}

/* Typography rhythm */
.font-display { font-family: 'Fraunces', Georgia, serif; font-optical-sizing: auto; }

/* Visible keyboard focus */
a:focus-visible, button:focus-visible, input:focus-visible,
select:focus-visible, textarea:focus-visible, summary:focus-visible {
  outline: 2px solid var(--brass-500);
  outline-offset: 3px;
  border-radius: 2px;
}

/* Nav / text link hover underline animation */
.link-underline {
  position: relative;
  text-decoration: none;
}
.link-underline::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 100%;
  height: 1.5px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 250ms ease;
}
.link-underline:hover::after,
.link-underline:focus-visible::after,
.link-underline[aria-current="page"]::after {
  transform: scaleX(1);
}

/* Hero entrance — one orchestrated rise, hero only */
@keyframes riseIn {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}
.hero-rise {
  animation: riseIn 360ms ease-out both;
}
.hero-rise-delay {
  animation: riseIn 360ms ease-out 120ms both;
}

/* Smooth expand for case-study detail blocks */
details.expand > div {
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transition: max-height 350ms ease, opacity 350ms ease;
}
details.expand[open] > div {
  max-height: 4000px;
  opacity: 1;
}
details.expand > summary {
  cursor: pointer;
  list-style: none;
}
details.expand > summary::-webkit-details-marker { display: none; }
details.expand > summary .chev { transition: transform 300ms ease; }
details.expand[open] > summary .chev { transform: rotate(180deg); }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero-rise, .hero-rise-delay { animation: none; opacity: 1; transform: none; }
  .link-underline::after { transition: none; }
  details.expand > div { transition: none; max-height: none; opacity: 1; }
  details.expand > summary .chev { transition: none; }
}

/* Mobile menu slide-in */
@keyframes slideIn {
  from { transform: translateX(100%); }
  to   { transform: translateX(0); }
}
.menu-panel { animation: slideIn 280ms ease-out both; }
@media (prefers-reduced-motion: reduce) {
  .menu-panel { animation: none; }
}

/* Calendar slot feedback */
.slot { transition: background-color 200ms ease, border-color 200ms ease, color 200ms ease; }
.slot[aria-pressed="true"] {
  background-color: var(--navy-900);
  border-color: var(--brass-500);
  color: #fff;
  box-shadow: inset 0 -3px 0 0 var(--brass-500);
}
.slot:hover:not([aria-pressed="true"]) {
  border-color: var(--brass-500);
  color: var(--brass-600);
}
.slot:disabled { opacity: .4; cursor: not-allowed; text-decoration: line-through; }

/* Form success state */
.success-panel { animation: riseIn 300ms ease-out both; }

/* Hero texture — faint grid + brass ring in the negative space (no gradients, no photos) */
.hero-texture {
  position: relative;
  isolation: isolate;
}
.hero-texture::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(to right, rgba(20, 40, 69, 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(20, 40, 69, 0.05) 1px, transparent 1px);
  background-size: 44px 44px;
  -webkit-mask-image: linear-gradient(to bottom, black 55%, transparent 100%);
          mask-image: linear-gradient(to bottom, black 55%, transparent 100%);
  pointer-events: none;
}
.hero-texture::after {
  content: "";
  position: absolute;
  z-index: -1;
  top: -90px;
  right: 40px;
  width: 340px;
  height: 340px;
  border: 1.5px solid rgba(169, 130, 47, 0.35);
  border-radius: 50%;
  pointer-events: none;
}
@media (max-width: 767px) {
  .hero-texture::after { display: none; }
}

/* ============================================================
   Tonal system — paper / navy tints + brass accent family
   ============================================================ */

/* Light navy tint for alternating sections (replaces flat white runs) */
.surface-tint { background-color: var(--navy-050); }

/* Brass hairline section divider */
.rule-brass {
  height: 1px;
  background-color: rgba(169, 130, 47, 0.45);
}

/* Second surface: a warm stone tint, used so alternating bands
   are not all the same value */
.surface-stone { background-color: var(--stone-200); }

/* Section heading tick — short brass accent line before a heading.
   Applied via .heading-tick (a left accent) or .heading-tick-top
   (a short rule sitting above the heading). */
.heading-tick {
  position: relative;
  padding-left: 1.25rem;
}
.heading-tick::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.35em;
  width: 3px;
  height: 1.15em;
  background-color: var(--brass-500);
}
.heading-tick-top::before {
  content: "";
  display: block;
  width: 2rem;
  height: 3px;
  background-color: var(--brass-500);
  margin-bottom: 0.9rem;
}

/* Brass hover on nav / text links (was: underline in currentColor only) */
.link-underline::after {
  background: var(--brass-500);
}
.link-underline:hover,
.link-underline:focus-visible {
  color: var(--brass-600);
}
/* Active page keeps its navy weight, with the brass underline showing */
.link-underline[aria-current="page"] {
  color: var(--navy-900);
}
.link-underline[aria-current="page"]::after {
  background: var(--brass-500);
}

/* Footer links sit on a tinted surface — keep hover readable */
.on-tint .link-underline:hover,
.on-tint .link-underline:focus-visible {
  color: var(--brass-600);
}

/* Brass-bordered media (photos framed in the accent family) */
.frame-brass {
  border: 1px solid rgba(169, 130, 47, 0.45);
  padding: 6px;
  background-color: var(--paper-white);
}

/* Corner accent used on pull-quote figures and testimonial blocks */
.quote-brass {
  position: relative;
  padding-left: 1.5rem;
  border-left: 2px solid rgba(169, 130, 47, 0.5);
}

/* Stat numerals get a brass rule and a brass-tinted top edge */
.stat-block {
  border-top: 2px solid var(--brass-500);
  background-color: rgba(255, 255, 255, 0.55);
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

/* Stat numerals — tabular figures so the count-up doesn't jitter */
.stat-num {
  font-variant-numeric: tabular-nums lining-nums;
}

/* Brass icons — applied where Lucide glyphs should read as accent */
.icon-brass { color: var(--brass-500); }