/* ============================================
   260 Trading Post — Custom Styles
   Deep Navy + Warm Gold | Minimalist / Magazine
   ============================================ */

/* ---- Custom Properties ---- */
:root {
  --navy-900: #0B1D3A;
  --navy-950: #040914;
  --gold-400: #D4AF5A;
  --gold-500: #C9A84C;
  --gold-600: #B8943F;
  --offwhite: #F7F5F0;
  --offwhite-dark: #EDEAE4;

  --font-serif: 'Cormorant Garamond', Georgia, serif;
  --font-sans: 'Inter', system-ui, sans-serif;

  --transition-smooth: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-spring: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ---- Reset & Base ---- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  background-color: var(--offwhite);
  color: var(--navy-900);
  font-family: var(--font-sans);
  font-weight: 300;
  line-height: 1.7;
  overflow-x: hidden;
}

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

a {
  text-decoration: none;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

/* ---- Utility ---- */
.max-w-7xl { max-width: 80rem; }
.mx-auto { margin-left: auto; margin-right: auto; }
.px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
.lg\:px-10 { padding-left: 2.5rem; padding-right: 2.5rem; }
.py-24 { padding-top: 6rem; padding-bottom: 6rem; }
.py-32 { padding-top: 8rem; padding-bottom: 8rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-10 { margin-bottom: 2.5rem; }
.mb-16 { margin-bottom: 4rem; }
.mb-20 { margin-bottom: 5rem; }

/* ---- Section Label ---- */
.section-label {
  font-family: var(--font-sans);
  font-size: 0.65rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--navy900, rgba(11,29,58,0.45));
  font-weight: 400;
  display: block;
}

/* ---- Divider Line ---- */
.divider-line {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(11,29,58,0.12) 20%, rgba(11,29,58,0.12) 80%, transparent);
}

/* ---- Buttons ---- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--navy-900);
  color: var(--offwhite);
  padding: 0.875rem 1.75rem;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-weight: 400;
  border: 1px solid var(--navy-900);
  transition: all var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gold-500);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-smooth);
  z-index: 0;
}

.btn-primary:hover::before {
  transform: scaleX(1);
}

.btn-primary span,
.btn-primary svg {
  position: relative;
  z-index: 1;
}

.btn-primary:hover {
  border-color: var(--gold-500);
  color: var(--navy-900);
}

.btn-primary:hover svg {
  color: var(--navy-900);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.5rem;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  font-weight: 400;
  color: var(--navy-900);
  border: 1px solid rgba(11,29,58,0.25);
  transition: all var(--transition-smooth);
}

.btn-secondary:hover {
  border-color: var(--navy-900);
  background: var(--navy-900);
  color: var(--gold-400);
}

.btn-secondary svg {
  color: var(--gold-500);
}

/* ---- Navigation ---- */
#siteHeader {
  background: rgba(247, 245, 240, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(11,29,58,0.06);
  transition: all var(--transition-smooth);
}

#siteHeader.scrolled {
  padding-top: 0;
  padding-bottom: 0;
  box-shadow: 0 1px 0 rgba(11,29,58,0.08);
}

.nav-link {
  position: relative;
  padding-bottom: 2px;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--gold-500);
  transition: width var(--transition-smooth);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-link-gold {
  transition: all var(--transition-smooth);
}

/* ---- Mobile Menu Toggle ---- */
.nav-line {
  display: block;
  height: 1px;
  background: var(--navy-900);
  transition: all 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.nav-toggle[aria-expanded="true"] .nav-line:nth-child(1) {
  transform: translateY(5px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.nav-toggle[aria-expanded="true"] .nav-line:nth-child(3) {
  transform: translateY(-5px) rotate(-45deg);
  width: 1.5rem !important;
}

/* ---- Mobile Menu Overlay ---- */
.mobile-menu-overlay {
  position: fixed;
  inset: 0;
  z-index: 40;
  background: var(--offwhite);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}

.mobile-menu-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.mobile-menu-link {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 300;
  font-style: italic;
  color: var(--navy-900);
  transition: color 0.3s ease;
}

.mobile-menu-link:hover {
  color: var(--gold-500);
}

/* ---- Hero ---- */
.hero-tagline {
  font-family: var(--font-sans);
  font-size: 0.65rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: rgba(11,29,58,0.4);
  font-weight: 300;
}

.hero-title {
  font-family: var(--font-serif);
  font-weight: 300;
  line-height: 1.05;
  color: var(--navy-900);
}

.hero-subtitle {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  line-height: 1.75;
  color: rgba(11,29,58,0.65);
  font-weight: 300;
  max-width: 48ch;
}

/* ---- Service Cards ---- */
.service-card {
  transition: all var(--transition-smooth);
}

.service-card:hover {
  background: rgba(255,255,255,0.03);
}

.service-card h3 {
  font-family: var(--font-serif);
  font-weight: 400;
  color: var(--offwhite);
}

/* ---- Gallery ---- */
.gallery-item {
  position: relative;
  overflow: hidden;
  aspect-ratio: auto;
}

.gallery-item img {
  transition: transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.gallery-item::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(11,29,58,0.08), transparent 50%);
  pointer-events: none;
}

/* ---- Contact Form ---- */
.form-label {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.6rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: rgba(11,29,58,0.4);
  font-weight: 400;
  margin-bottom: 0.5rem;
}

.form-input {
  width: 100%;
  padding: 0.75rem 0;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 300;
  color: var(--navy-900);
  background: transparent;
  border: none;
  border-bottom: 1px solid rgba(11,29,58,0.15);
  outline: none;
  transition: border-color 0.3s ease;
  resize: none;
}

.form-input::placeholder {
  color: rgba(11,29,58,0.3);
}

.form-input:focus {
  border-bottom-color: var(--gold-500);
}

.form-textarea {
  line-height: 1.7;
}

.form-success {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 300;
}

/* ---- Scroll Reveal (progressive enhancement) ---- */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  }

  .reveal.revealed {
    opacity: 1;
    transform: translateY(0);
  }

  .reveal:nth-child(2) { transition-delay: 0.08s; }
  .reveal:nth-child(3) { transition-delay: 0.16s; }
  .reveal:nth-child(4) { transition-delay: 0.24s; }
}

/* ---- Responsive ---- */
@media (max-width: 1023px) {
  .lg\:col-span-7 { grid-column: span 1; }
  .lg\:col-span-5 { grid-column: span 1; }
  .lg\:grid-cols-12 { grid-template-columns: 1fr; }
  .lg\:pr-12 { padding-right: 3rem; }
  .lg\:py-10 { padding-top: 2.5rem; padding-bottom: 2.5rem; }
  .lg\:pt-8 { padding-top: 2rem; }
  .lg\:gap-24 { gap: 6rem; }
}

@media (max-width: 767px) {
  html { font-size: 15px; }
  .py-24 { padding-top: 4rem; padding-bottom: 4rem; }
  .py-32 { padding-top: 5rem; padding-bottom: 5rem; }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .md\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
  .md\:grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
}

/* ---- Focus visible for accessibility ---- */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 1px solid var(--gold-500);
  outline-offset: 4px;
}