/* ── ARCWALL SHARED STYLES ─────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@700;800;900&family=IBM+Plex+Mono:wght@300;400;500&family=IBM+Plex+Sans:wght@300;400;500;600&display=swap');

:root {
  --ink: #0f0f0f;
  --paper: #f5f0e8;
  --paper2: #ede8dc;
  --amber: #d4580a;
  --amber-light: #f5e6d8;
  --slate: #1c2b3a;
  --slate-mid: #2e4358;
  --muted: #6b6457;
  --mono: "IBM Plex Mono", monospace;
  --display: "Playfair Display", serif;
  --body: "IBM Plex Sans", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

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

body::after {
  content: "";
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='400' height='400'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='400' height='400' filter='url(%23n)' opacity='0.035'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9999;
}

/* ── NAV ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: var(--slate);
  padding: 0 48px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: var(--mono);
  font-weight: 500;
  font-size: 15px;
  color: var(--paper);
  letter-spacing: 3px;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.logo-mark {
  width: 22px; height: 22px;
  border: 2px solid var(--amber);
  transform: rotate(45deg);
  flex-shrink: 0;
}

.nav-links { display: flex; align-items: center; gap: 20px; list-style: none; flex-wrap: nowrap; }

.nav-links a {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: rgba(245,240,232,0.5);
  text-decoration: none;
  transition: color 0.2s;
  white-space: nowrap;
}

.nav-links a:hover { color: var(--paper); }
.nav-links a.active { color: var(--paper); }

.nav-cta {
  background: var(--amber) !important;
  color: white !important;
  padding: 7px 14px !important;
  letter-spacing: 1px !important;
  white-space: nowrap;
}

@media (max-width: 1200px) {
  nav { padding: 0 28px; }
  .nav-links { gap: 14px; }
  .nav-links a { font-size: 10px; letter-spacing: 1px; }
  .nav-cta { padding: 6px 11px !important; font-size: 10px; }
}

/* ── BUTTONS ── */
.btn-primary {
  background: var(--slate);
  color: var(--paper);
  padding: 14px 28px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  border: none;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: all 0.2s;
  position: relative;
}

.btn-primary::after {
  content: "";
  position: absolute;
  bottom: -4px; right: -4px;
  width: 100%; height: 100%;
  border: 2px solid var(--amber);
  transition: all 0.2s;
}

.btn-primary:hover { background: var(--amber); transform: translate(-2px, -2px); }
.btn-primary:hover::after { bottom: -6px; right: -6px; }

.btn-ghost {
  background: transparent;
  color: var(--muted);
  padding: 14px 28px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  border: 1px solid currentColor;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.btn-ghost:hover { color: var(--ink); }

.btn-amber {
  background: var(--amber);
  color: white;
  padding: 14px 28px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  border: none;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: background 0.2s;
}

.btn-amber:hover { background: #bf4f09; }

/* ── SECTION ── */
.section { max-width: 1200px; margin: 0 auto; padding: 100px 48px; }
.section-sm { max-width: 1200px; margin: 0 auto; padding: 60px 48px; }

.section-header {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 48px;
  align-items: start;
  margin-bottom: 64px;
  padding-bottom: 32px;
  border-bottom: 3px solid var(--ink);
}

.section-num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--muted);
  padding-top: 8px;
}

h2 {
  font-family: var(--display);
  font-size: clamp(36px, 4vw, 56px);
  font-weight: 900;
  letter-spacing: -2px;
  line-height: 1.05;
  color: var(--slate);
}

h2 em { font-style: italic; color: var(--amber); }

.section-sub {
  font-size: 16px;
  color: var(--muted);
  line-height: 1.8;
  font-weight: 300;
  margin-top: 16px;
  max-width: 500px;
}

h3 {
  font-family: var(--display);
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -1px;
  color: var(--slate);
}

/* ── PAGE HERO (inner pages) ── */
.page-hero {
  padding: 140px 48px 80px;
  max-width: 1200px;
  margin: 0 auto;
}

.page-eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.page-eyebrow::before {
  content: "";
  display: block;
  width: 32px;
  height: 2px;
  background: var(--amber);
}

.page-hero h1 {
  font-family: var(--display);
  font-size: clamp(44px, 5vw, 72px);
  font-weight: 900;
  line-height: 1.0;
  letter-spacing: -2px;
  margin-bottom: 24px;
  color: var(--slate);
}

.page-hero h1 em { font-style: italic; color: var(--amber); }

.page-hero p {
  font-size: 18px;
  color: var(--muted);
  line-height: 1.8;
  font-weight: 300;
  max-width: 560px;
  margin-bottom: 40px;
}

/* ── PRICING ── */
.pricing-section { background: var(--paper2); border-top: 3px solid var(--ink); border-bottom: 3px solid var(--ink); }

.pricing-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3px;
  background: var(--ink);
  border: 3px solid var(--ink);
}

.pricing-card { background: var(--paper); padding: 48px 40px; position: relative; transition: background 0.2s; }
.pricing-card:hover { background: var(--amber-light); }
.pricing-card.featured { background: var(--slate); color: var(--paper); }
.pricing-card.featured:hover { background: var(--slate-mid); }

.plan-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.featured .plan-label { color: rgba(245,240,232,0.4); }
.plan-label::after { content: ""; flex: 1; height: 1px; background: currentColor; opacity: 0.3; }

.popular-tag {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 3px 10px;
  background: var(--amber);
  color: white;
}

.plan-price { font-family: var(--display); font-size: 72px; font-weight: 900; line-height: 1; letter-spacing: -4px; margin-bottom: 4px; color: var(--slate); }
.featured .plan-price { color: var(--paper); }
.plan-price sup { font-size: 28px; vertical-align: super; letter-spacing: 0; color: var(--amber); }
.plan-period { font-family: var(--mono); font-size: 11px; letter-spacing: 2px; color: var(--muted); text-transform: uppercase; margin-bottom: 32px; }
.featured .plan-period { color: rgba(245,240,232,0.4); }
.plan-rule { height: 2px; background: var(--ink); margin-bottom: 28px; opacity: 0.1; }
.featured .plan-rule { background: var(--paper); opacity: 0.15; }
.plan-features { list-style: none; display: flex; flex-direction: column; gap: 12px; margin-bottom: 40px; }
.plan-features li { font-size: 13px; display: flex; gap: 10px; align-items: flex-start; color: var(--muted); }
.featured .plan-features li { color: rgba(245,240,232,0.55); }
.plan-features li.on { color: var(--ink); }
.featured .plan-features li.on { color: var(--paper); }
.plan-features li .chk { color: var(--amber); flex-shrink: 0; }
.plan-features li .off { color: #c0b8aa; flex-shrink: 0; }
.btn-plan { width: 100%; padding: 14px; font-family: var(--mono); font-size: 11px; letter-spacing: 2px; text-transform: uppercase; cursor: pointer; border: none; transition: all 0.2s; }
.btn-dark { background: var(--slate); color: var(--paper); }
.btn-dark:hover { background: var(--ink); }
.btn-plan-amber { background: var(--amber); color: white; }
.btn-plan-amber:hover { background: #bf4f09; }
.btn-outline { background: transparent; color: var(--slate); border: 2px solid var(--slate); }
.btn-outline:hover { background: var(--slate); color: var(--paper); }

/* ── SIGNUP FORM ── */
.signup-form { display: flex; max-width: 440px; margin: 0 auto; }

.signup-input {
  flex: 1;
  background: rgba(255,255,255,0.06);
  border: 2px solid rgba(255,255,255,0.15);
  border-right: none;
  padding: 14px 18px;
  color: var(--paper);
  font-family: var(--mono);
  font-size: 13px;
  outline: none;
  transition: border-color 0.2s;
}

.signup-input:focus { border-color: var(--amber); }
.signup-input::placeholder { color: rgba(245,240,232,0.25); }

.signup-btn {
  background: var(--amber);
  color: white;
  border: 2px solid var(--amber);
  padding: 14px 24px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.2s;
}

.signup-btn:hover { background: #bf4f09; border-color: #bf4f09; }
.cta-note { font-family: var(--mono); font-size: 11px; color: rgba(245,240,232,0.25); margin-top: 16px; letter-spacing: 1px; }

/* ── CTA SECTION ── */
.cta-section {
  background: var(--ink);
  color: var(--paper);
  padding: 120px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: "ARCWALL";
  position: absolute;
  font-family: var(--display);
  font-size: 280px;
  font-weight: 900;
  color: rgba(255,255,255,0.02);
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  white-space: nowrap;
  letter-spacing: -10px;
  pointer-events: none;
}

.cta-section h2 { color: var(--paper); max-width: 640px; margin: 0 auto 20px; }
.cta-section p { color: rgba(245,240,232,0.5); margin-bottom: 48px; font-size: 17px; }

/* ── FOOTER ── */
footer {
  background: var(--slate);
  padding: 32px 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 3px solid var(--ink);
  flex-wrap: wrap;
  gap: 16px;
}

.footer-logo { font-family: var(--mono); font-size: 12px; letter-spacing: 3px; text-transform: uppercase; color: rgba(245,240,232,0.4); display: flex; align-items: center; gap: 10px; text-decoration: none; }
.footer-logo-mark { width: 14px; height: 14px; border: 1.5px solid var(--amber); transform: rotate(45deg); }
.footer-links { display: flex; gap: 28px; list-style: none; flex-wrap: wrap; }
.footer-links a { font-family: var(--mono); font-size: 11px; letter-spacing: 1px; text-transform: uppercase; color: rgba(245,240,232,0.3); text-decoration: none; transition: color 0.2s; }
.footer-links a:hover { color: var(--paper); }

/* ── TRUST STRIP ── */
.trust-strip { background: var(--paper2); border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink); padding: 20px 48px; }
.trust-inner { max-width: 1200px; margin: 0 auto; display: flex; justify-content: center; gap: 48px; flex-wrap: wrap; }
.trust-item { font-family: var(--mono); font-size: 11px; color: var(--muted); display: flex; align-items: center; gap: 8px; letter-spacing: 1px; text-transform: uppercase; }
.trust-item span { color: var(--amber); }

/* ── ALT SECTION ── */
.alt-section { background: var(--slate); color: var(--paper); }
.alt-section .section-num { color: rgba(245,240,232,0.3); }
.alt-section h2 { color: var(--paper); }
.alt-section .section-sub { color: rgba(245,240,232,0.5); }
.alt-section .section-header { border-color: rgba(245,240,232,0.15); }

/* ── COMING SOON BADGE ── */
.badge-soon {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--amber);
  background: var(--amber-light);
  border: 1px solid rgba(212,88,10,0.3);
  padding: 3px 10px;
  display: inline-block;
}

/* ── REVEAL ── */
@keyframes fadeIn { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }


/* ── MOBILE SIDEBAR NAV ── */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--paper);
  transition: all 0.3s;
}

.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 200;
}

.sidebar-overlay.open { display: block; }

.sidebar-nav {
  position: fixed;
  top: 0;
  right: -280px;
  width: 280px;
  height: 100vh;
  background: var(--slate);
  z-index: 201;
  transition: right 0.3s ease;
  display: flex;
  flex-direction: column;
  padding: 24px;
  overflow-y: auto;
}

.sidebar-nav.open { right: 0; }

.sidebar-close {
  align-self: flex-end;
  background: none;
  border: none;
  color: rgba(245,240,232,0.5);
  font-size: 24px;
  cursor: pointer;
  padding: 4px;
  margin-bottom: 24px;
  line-height: 1;
}

.sidebar-close:hover { color: var(--paper); }

.sidebar-logo {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--paper);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 32px;
  text-decoration: none;
}

.sidebar-logo-mark {
  width: 16px;
  height: 16px;
  border: 2px solid var(--amber);
  transform: rotate(45deg);
  flex-shrink: 0;
}

.sidebar-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
}

.sidebar-links li a {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: rgba(245,240,232,0.6);
  text-decoration: none;
  padding: 12px 0;
  display: block;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: color 0.2s;
}

.sidebar-links li a:hover { color: var(--paper); }
.sidebar-links li a.active { color: var(--amber); }

.sidebar-ctas {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.sidebar-cta-key {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 12px;
  text-align: center;
  text-decoration: none;
  border: 1px solid rgba(212,88,10,0.5);
  color: var(--amber);
  transition: all 0.2s;
}

.sidebar-cta-key:hover { background: rgba(212,88,10,0.1); }

.sidebar-cta-install {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 12px;
  text-align: center;
  text-decoration: none;
  background: var(--amber);
  color: white;
  transition: background 0.2s;
}

.sidebar-cta-install:hover { background: #bf4f09; }

@media (max-width: 768px) {
  .hamburger { display: flex; }
  .nav-links { display: none !important; }
}

/* ── MOBILE ── */
@media (max-width: 768px) {
  nav { padding: 0 20px; }
  .nav-links { display: none; }
  .mobile-nav-ctas { display: flex; gap: 8px; }
  .section { padding: 60px 20px; }
  .section-sm { padding: 40px 20px; }
  .section-header { grid-template-columns: 1fr; gap: 16px; }
  .page-hero { padding: 100px 20px 60px; }
  .pricing-cards { grid-template-columns: 1fr; }
  footer { padding: 24px 20px; flex-direction: column; align-items: flex-start; }
  .trust-strip { padding: 16px 20px; }
  .trust-inner { gap: 20px; justify-content: flex-start; }
  .cta-section { padding: 80px 20px; }
  .signup-form { flex-direction: column; gap: 10px; }
  .signup-input { border-right: 2px solid rgba(255,255,255,0.15); }
  .signup-btn { width: 100%; }
}

@media (min-width: 769px) {
  .mobile-nav-ctas { display: none; }
}