/* ========================================================================
   MS5 — Shared Foundations
   Typography, reset, nav, footer, utilities
   ======================================================================== */

:root {
  /* Brand — MS5 parent (navy + silver) */
  --ms5-navy:        #0b1530;
  --ms5-navy-deep:   #060c1f;
  --ms5-navy-soft:   #1a2547;
  --ms5-silver:      #c5cad5;
  --ms5-silver-soft: #e8eaf0;
  --ms5-platinum:    #f5f6f9;
  --ms5-accent:      #4f7cff;
  --ms5-accent-glow: #7c9bff;

  /* Neutral text */
  --ink:        #0a0f24;
  --ink-soft:   #2a3454;
  --ink-mute:   #6b7493;
  --paper:      #ffffff;
  --paper-warm: #fbfbfd;

  /* Layout */
  --max-w:        1240px;
  --pad:          clamp(1rem, 4vw, 2rem);
  --radius:       18px;
  --radius-lg:    28px;
  --radius-pill:  999px;

  /* Type */
  --font-display: 'Plus Jakarta Sans', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body:    'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Motion */
  --ease-out:  cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(11, 21, 48, 0.06);
  --shadow-md: 0 12px 40px rgba(11, 21, 48, 0.10);
  --shadow-lg: 0 30px 80px rgba(11, 21, 48, 0.18);
  --shadow-glow: 0 0 80px rgba(79, 124, 255, 0.25);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: var(--ink);
}

h1 { font-size: clamp(2.5rem, 6vw, 5rem); font-weight: 800; }
h2 { font-size: clamp(2rem, 4.5vw, 3.5rem); }
h3 { font-size: clamp(1.4rem, 2.5vw, 2rem); }
h4 { font-size: 1.25rem; }

p { color: var(--ink-soft); }

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding-left: var(--pad);
  padding-right: var(--pad);
}

.section {
  padding: clamp(4rem, 10vw, 8rem) 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ms5-accent);
  margin-bottom: 1rem;
}

.eyebrow::before {
  content: "";
  display: inline-block;
  width: 28px;
  height: 1.5px;
  background: currentColor;
  border-radius: 2px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: var(--radius-pill);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  border: none;
  cursor: pointer;
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out), background 0.3s var(--ease-out);
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--ms5-navy);
  color: var(--ms5-platinum);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 40px rgba(11, 21, 48, 0.25);
  background: var(--ms5-navy-soft);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1.5px solid rgba(11, 21, 48, 0.15);
}
.btn-ghost:hover {
  background: rgba(11, 21, 48, 0.04);
  transform: translateY(-2px);
}

.btn-light {
  background: rgba(255, 255, 255, 0.08);
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(12px);
}
.btn-light:hover {
  background: rgba(255, 255, 255, 0.16);
  transform: translateY(-2px);
}

.btn .arrow {
  transition: transform 0.3s var(--ease-out);
}
.btn:hover .arrow {
  transform: translateX(4px);
}

/* ===== Navigation ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1.1rem 0;
  transition: background 0.4s var(--ease-out), backdrop-filter 0.4s var(--ease-out), padding 0.3s var(--ease-out), box-shadow 0.4s var(--ease-out);
}
.nav.scrolled {
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  padding: 0.7rem 0;
  box-shadow: 0 1px 0 rgba(11, 21, 48, 0.06);
}
.nav.dark {
  --nav-text: #f5f6f9;
}
.nav.dark.scrolled {
  background: rgba(11, 21, 48, 0.78);
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.4rem;
  letter-spacing: -0.02em;
  color: var(--nav-text, var(--ink));
  transition: color 0.3s;
}
.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  font-size: 0.85rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--ms5-navy), var(--ms5-accent));
  color: white;
  letter-spacing: -0.04em;
}
.brand-sub {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--ink-mute);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-left: 4px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}
.nav-links a {
  font-size: 0.93rem;
  font-weight: 500;
  color: var(--nav-text, var(--ink-soft));
  position: relative;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--ms5-accent); }
.nav-links a::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--ms5-accent);
  transition: width 0.3s var(--ease-out);
}
.nav-links a:hover::after { width: 100%; }

.nav-cta {
  padding: 10px 20px;
  font-size: 0.88rem;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 36px;
  height: 36px;
  position: relative;
}
.nav-toggle span {
  position: absolute;
  left: 8px;
  right: 8px;
  height: 2px;
  background: var(--nav-text, var(--ink));
  border-radius: 2px;
  transition: transform 0.3s, top 0.3s, opacity 0.3s;
}
.nav-toggle span:nth-child(1) { top: 12px; }
.nav-toggle span:nth-child(2) { top: 17px; }
.nav-toggle span:nth-child(3) { top: 22px; }
.nav-toggle.open span:nth-child(1) { top: 17px; transform: rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { top: 17px; transform: rotate(-45deg); }

@media (max-width: 820px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: fixed;
    inset: 64px 0 auto 0;
    flex-direction: column;
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(20px);
    padding: 2rem var(--pad);
    gap: 1.5rem;
    align-items: flex-start;
    transform: translateY(-120%);
    transition: transform 0.4s var(--ease-out);
    border-bottom: 1px solid rgba(11, 21, 48, 0.08);
  }
  .nav-links.open { transform: translateY(0); }
  .nav-links a { color: var(--ink); font-size: 1.1rem; }
  .nav.dark .nav-links { background: rgba(11, 21, 48, 0.97); }
  .nav.dark .nav-links a { color: var(--ms5-platinum); }
}

/* ===== Footer ===== */
.footer {
  --ms5-cut: var(--ms5-navy-deep);   /* match footer bg so the wordmark cut reads as a slit, not a box */
  background: var(--ms5-navy-deep);
  color: var(--ms5-silver);
  padding: 5rem 0 2rem;
  position: relative;
  overflow: hidden;
}
.footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(197, 202, 213, 0.3), transparent);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}
@media (max-width: 820px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
}
@media (max-width: 520px) {
  .footer-grid { grid-template-columns: 1fr; }
}
.footer h4 {
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: white;
  margin-bottom: 1.3rem;
  font-weight: 600;
}
.footer p, .footer a, .footer li {
  color: rgba(197, 202, 213, 0.72);
  font-size: 0.95rem;
  line-height: 1.8;
}
.footer a { transition: color 0.2s; }
.footer a:hover { color: white; }
.footer ul { list-style: none; }
.footer .brand {
  color: white;
  font-size: 1.5rem;
  margin-bottom: 1rem;
}
.footer-tag {
  font-size: 0.95rem;
  max-width: 320px;
  line-height: 1.7;
  margin-top: 0.5rem;
}
.footer-bottom {
  border-top: 1px solid rgba(197, 202, 213, 0.1);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
  color: rgba(197, 202, 213, 0.5);
}

/* ===== Reveal animations ===== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out);
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}
.reveal-stagger.in > * { opacity: 1; transform: translateY(0); }
.reveal-stagger.in > *:nth-child(1) { transition-delay: 0.05s; }
.reveal-stagger.in > *:nth-child(2) { transition-delay: 0.15s; }
.reveal-stagger.in > *:nth-child(3) { transition-delay: 0.25s; }
.reveal-stagger.in > *:nth-child(4) { transition-delay: 0.35s; }
.reveal-stagger.in > *:nth-child(5) { transition-delay: 0.45s; }
.reveal-stagger.in > *:nth-child(6) { transition-delay: 0.55s; }

/* Reduce motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}

/* ===== Form base ===== */
.form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 1.1rem;
}
.form-field label {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--ink);
  letter-spacing: 0.01em;
}
.form-field label .req { color: #d04848; }
.form-field input,
.form-field textarea,
.form-field select {
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 13px 16px;
  border: 1.5px solid rgba(11, 21, 48, 0.12);
  border-radius: 12px;
  background: white;
  color: var(--ink);
  transition: border-color 0.2s, box-shadow 0.2s;
  width: 100%;
}
.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus {
  outline: none;
  border-color: var(--ms5-accent);
  box-shadow: 0 0 0 4px rgba(79, 124, 255, 0.12);
}
.form-field textarea {
  resize: vertical;
  min-height: 120px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
@media (max-width: 600px) {
  .form-row { grid-template-columns: 1fr; }
}
.form-status {
  margin-top: 1rem;
  padding: 12px 16px;
  border-radius: 12px;
  font-size: 0.9rem;
  display: none;
}
.form-status.show { display: block; }
.form-status.success { background: #ecfdf5; color: #065f46; border: 1px solid #a7f3d0; }
.form-status.error { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }

/* ===== Utility ===== */
.gradient-text {
  background: linear-gradient(135deg, var(--ms5-silver) 0%, white 50%, var(--ms5-silver-soft) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.tilt { transform-style: preserve-3d; transition: transform 0.4s var(--ease-out); }

.noise {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
}

/* Ensure no horizontal scroll on small screens */
.section, .hero, .footer { overflow-x: clip; }

/* ===========================================================
   MS5 wordmark — plain text (Plus Jakarta Sans 800)
   Same font and color as the rest of the site.
   =========================================================== */

.ms5-mark-text {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.55rem;
  letter-spacing: -0.04em;
  line-height: 1;
  color: currentColor;
  display: inline-block;
}

.ms5-mark-text--hero {
  font-size: clamp(4.5rem, 14vw, 12rem);
  font-weight: 800;
  letter-spacing: -0.05em;
  line-height: 1;
  display: block;
}

.brand.ms5-brand {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  color: inherit;
}

.ms5-sub {
  margin-left: 14px;
  padding-left: 14px;
  border-left: 1px solid currentColor;
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  vertical-align: middle;
  opacity: 0.65;
  position: relative;
  top: -2px;
}