/* ============================================
   VinePath — Kinetic Precision Design System
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Manrope:wght@700;800&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:wght,FILL@100..700,0..1&display=swap');

/* ---- CSS Custom Properties ---- */
:root {
  --surface-tint: #525f74;
  --surface: #f8f9fa;
  --surface-bright: #f8f9fa;
  --surface-dim: #d9dadb;
  --surface-container-lowest: #ffffff;
  --surface-container-low: #f3f4f5;
  --surface-container: #edeeef;
  --surface-container-high: #e7e8e9;
  --surface-container-highest: #e1e3e4;
  --surface-variant: #e1e3e4;

  --background: #f8f9fa;
  --on-background: #191c1d;

  --primary: #283548;
  --primary-container: #3f4c5f;
  --primary-fixed: #d6e3fc;
  --primary-fixed-dim: #bac7df;
  --on-primary: #ffffff;
  --on-primary-container: #aebcd3;
  --on-primary-fixed: #0e1c2e;
  --on-primary-fixed-variant: #3a475b;
  --inverse-primary: #bac7df;

  --secondary: #4b6172;
  --secondary-container: #cee5f9;
  --secondary-fixed: #cee5f9;
  --secondary-fixed-dim: #b2c9dd;
  --on-secondary: #ffffff;
  --on-secondary-container: #516778;
  --on-secondary-fixed: #051e2c;
  --on-secondary-fixed-variant: #334959;

  --tertiary: #203646;
  --tertiary-container: #374d5e;
  --tertiary-fixed: #cee5fa;
  --tertiary-fixed-dim: #b2c9dd;
  --on-tertiary: #ffffff;
  --on-tertiary-container: #a6bdd1;
  --on-tertiary-fixed: #041e2d;
  --on-tertiary-fixed-variant: #33495a;

  --outline: #73777c;
  --outline-variant: #c3c7cc;

  --error: #ba1a1a;
  --error-container: #ffdad6;
  --on-error: #ffffff;
  --on-error-container: #93000a;

  --on-surface: #191c1d;
  --on-surface-variant: #43474b;
  --inverse-surface: #2e3132;
  --inverse-on-surface: #f0f1f2;

  /* Typography */
  --font-headline: 'Manrope', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-label: 'Inter', sans-serif;

  /* Elevation */
  --ambient-glow: 0px 12px 32px rgba(40, 53, 72, 0.06);
  --shadow-lg: 0 20px 40px rgba(40, 53, 72, 0.12);

  /* Border Radius */
  --radius-sm: 0.125rem;
  --radius-md: 0.25rem;
  --radius-lg: 0.5rem;
  --radius-full: 0.75rem;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--background);
  color: var(--on-surface);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ---- Material Symbols ---- */
.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
  user-select: none;
}

/* ---- Utility Classes ---- */

/* Gradients */
.kinetic-gradient {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-container) 100%);
}

/* Glass nav */
.glass-nav {
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

/* Angular clip (signature brand moment) */
.angular-clip,
.angular-accent {
  border-top-right-radius: 0px !important;
}

/* Ghost border */
.ghost-border {
  outline: 1px solid rgba(195, 199, 204, 0.15);
}

/* Ambient glow */
.ambient-glow {
  box-shadow: var(--ambient-glow);
}

/* Chips */
.chip {
  display: inline-flex;
  align-items: center;
  background: var(--secondary-container);
  color: var(--on-secondary-container);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-family: var(--font-label);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* Label style */
.label {
  font-family: var(--font-label);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* ---- Navigation ---- */
.site-nav {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 50;
  background: rgba(248, 249, 250, 0.80);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 rgba(0,0,0,0.06);
}

.site-nav__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  max-width: 88rem;
  margin: 0 auto;
}

.site-nav__logo {
  font-family: var(--font-headline);
  font-size: 1.125rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--primary);
  text-decoration: none;
}

.site-nav__links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.site-nav__links a {
  font-family: var(--font-headline);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--on-surface-variant);
  text-decoration: none;
  transition: color 0.2s;
}

.site-nav__links a:hover,
.site-nav__links a.active {
  color: var(--on-surface);
}

.site-nav__links a.active {
  border-bottom: 2px solid var(--primary);
  padding-bottom: 2px;
}

.site-nav__cta {
  font-family: var(--font-headline);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--on-primary);
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-container) 100%);
  border: none;
  padding: 0.5rem 1.5rem;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: transform 0.15s, opacity 0.15s;
}
.site-nav__cta:hover { opacity: 0.9; transform: scale(1.02); }
.site-nav__cta:active { transform: scale(0.97); }

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: all 0.3s;
}

/* ---- Footer ---- */
.site-footer {
  border-top: 1px solid rgba(0,0,0,0.06);
  background: #f1f2f3;
  margin-top: auto;
}

.site-footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 3rem;
  max-width: 88rem;
  margin: 0 auto;
  flex-wrap: wrap;
  gap: 2rem;
}

.site-footer__brand-name {
  font-family: var(--font-headline);
  font-size: 1rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--primary);
  margin-bottom: 0.25rem;
}

.site-footer__copy {
  font-size: 0.6875rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--outline);
}

.site-footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  list-style: none;
}

.site-footer__links a {
  font-size: 0.6875rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--outline);
  text-decoration: none;
  transition: color 0.2s;
}

.site-footer__links a:hover { color: var(--on-surface); }

/* ---- Buttons ---- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: 0.9375rem;
  color: var(--on-primary);
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-container) 100%);
  border: none;
  padding: 1rem 2rem;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: transform 0.15s, opacity 0.15s;
  text-decoration: none;
  border-top-right-radius: 0;
}
.btn-primary:hover { opacity: 0.92; transform: scale(1.02); }
.btn-primary:active { transform: scale(0.97); }
.btn-primary .arrow { transition: transform 0.2s; }
.btn-primary:hover .arrow { transform: translateX(4px); }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: 0.9375rem;
  color: var(--on-surface);
  background: var(--surface-container-low);
  border: none;
  padding: 1rem 2rem;
  border-radius: var(--radius-lg);
  cursor: pointer;
  outline: 1px solid rgba(195, 199, 204, 0.15);
  transition: background 0.15s;
  text-decoration: none;
}
.btn-secondary:hover { background: var(--surface-container-high); }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: 0.9375rem;
  color: var(--primary);
  background: transparent;
  border: 1px solid rgba(195, 199, 204, 0.30);
  padding: 1rem 2rem;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: background 0.15s;
  text-decoration: none;
}
.btn-ghost:hover { background: var(--surface-container); }

/* ---- Layout helpers ---- */
.container {
  max-width: 88rem;
  margin: 0 auto;
  padding: 0 2rem;
}

.pt-nav { padding-top: 6rem; }

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .site-nav__links { display: none; }
  .site-nav__links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(248, 249, 250, 0.97);
    padding: 1.5rem 2rem;
    gap: 1rem;
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
  }
  .nav-toggle { display: flex; }
  .site-nav__cta { display: none; }

  .site-footer__inner { flex-direction: column; align-items: flex-start; }
}