/* Israel Defense Tech Founders Club - shared stylesheet.
   Dark, quiet, institutional. Brass accent instead of startup teal: this has to
   read credibly to a prime and a sovereign fund, not just to a seed founder.
   System fonts only - no external requests anywhere on the site. */

:root {
  color-scheme: dark;
  --bg:      #07090c;
  --bg-2:    #0b0f15;
  --panel:   #0e131b;
  --panel-2: #131a24;
  --line:    #1e2735;
  --line-2:  #2a3547;
  --ink:     #e9eef5;
  --ink-2:   #c3cddb;
  --mut:     #8b97a8;
  --mut-2:   #6b7889;
  --brass:   #c8a45c;
  --brass-2: #e0bd77;
  --brass-d: #141005;
  --ok:      #62b98a;
  --warn:    #d99a4e;
  --bad:     #e2705f;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --wrap: 1120px;
  --r: 14px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.7 var(--sans);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, svg { max-width: 100%; }
a { color: var(--brass); text-decoration: none; }
a:hover { color: var(--brass-2); }

.wrap { width: min(100% - 40px, var(--wrap)); margin-inline: auto; }

/* ---------- type ---------- */
h1, h2, h3 { line-height: 1.18; margin: 0 0 14px; letter-spacing: -0.015em; }
h1 { font-size: clamp(32px, 5.6vw, 60px); font-weight: 800; }
h2 { font-size: clamp(24px, 3.4vw, 36px); font-weight: 750; }
h3 { font-size: 18px; font-weight: 700; letter-spacing: 0; }
p  { margin: 0 0 14px; color: var(--ink-2); }
.lede { font-size: clamp(16px, 2vw, 19px); color: var(--ink-2); max-width: 62ch; }
.mut { color: var(--mut); }
.small { font-size: 13px; line-height: 1.6; }

.kicker {
  color: var(--brass);
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  font-weight: 700;
  margin: 0 0 12px;
}

/* ---------- header ---------- */
header.site {
  position: sticky; top: 0; z-index: 50;
  background: rgba(7, 9, 12, 0.86);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
header.site .bar { display: flex; align-items: center; gap: 18px; height: 62px; }
.brand { display: flex; align-items: center; gap: 11px; color: var(--ink); }
.brand .mark {
  width: 30px; height: 30px; flex: none; border-radius: 7px;
  background: linear-gradient(150deg, var(--brass-2), #8d6f30);
  display: grid; place-items: center;
  color: var(--brass-d); font-weight: 900; font-size: 12px; letter-spacing: -0.04em;
}
.brand b { font-size: 14px; font-weight: 700; letter-spacing: 0.03em; display: block; line-height: 1.25; }
.brand span { font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--brass); font-weight: 700; }
nav.site { margin-left: auto; display: flex; align-items: center; gap: 22px; }
nav.site a { color: var(--mut); font-size: 14px; font-weight: 600; }
nav.site a:hover { color: var(--ink); }
@media (max-width: 780px) { nav.site a.hide-sm { display: none; } }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 22px; border-radius: 10px; border: 1px solid transparent;
  font-size: 15px; font-weight: 700; cursor: pointer; font-family: inherit;
  transition: transform .12s ease, background .15s ease, border-color .15s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--brass); color: var(--brass-d); }
.btn-primary:hover { background: var(--brass-2); color: var(--brass-d); }
.btn-ghost { background: transparent; border-color: var(--line-2); color: var(--ink); }
.btn-ghost:hover { border-color: var(--brass); color: var(--brass); }
.btn[disabled] { opacity: .5; cursor: not-allowed; }
.btn-sm { padding: 8px 14px; font-size: 13px; border-radius: 8px; }

/* ---------- hero ---------- */
.hero { position: relative; padding: clamp(56px, 9vw, 104px) 0 clamp(48px, 7vw, 84px); overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: -20% -10% auto -10%; height: 460px; pointer-events: none;
  background:
    radial-gradient(60% 70% at 22% 0%, rgba(200, 164, 92, .16), transparent 62%),
    radial-gradient(50% 60% at 82% 8%, rgba(88, 132, 180, .12), transparent 66%);
}
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .5;
  background-image:
    linear-gradient(rgba(255,255,255,.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.028) 1px, transparent 1px);
  background-size: 62px 62px;
  mask-image: radial-gradient(70% 60% at 50% 20%, #000, transparent 78%);
}
.hero .wrap { position: relative; z-index: 1; }
.hero h1 { max-width: 15ch; }
.hero .cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

.stats { display: flex; flex-wrap: wrap; gap: 34px; margin-top: 46px; padding-top: 26px; border-top: 1px solid var(--line); }
.stats div b { display: block; font-size: 22px; font-weight: 800; color: var(--ink); letter-spacing: -0.02em; }
.stats div span { font-size: 12px; color: var(--mut); letter-spacing: .06em; text-transform: uppercase; font-weight: 600; }

/* ---------- sections ---------- */
section { padding: clamp(50px, 7vw, 86px) 0; }
section.alt { background: var(--bg-2); border-block: 1px solid var(--line); }
.head { max-width: 66ch; margin-bottom: 38px; }

.grid { display: grid; gap: 18px; }
.g2 { grid-template-columns: repeat(2, 1fr); }
.g3 { grid-template-columns: repeat(3, 1fr); }
.g4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .g3, .g4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 680px) { .g2, .g3, .g4 { grid-template-columns: 1fr; } }

.card {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--r); padding: 24px;
}
.card h3 { margin-bottom: 8px; }
.card p:last-child { margin-bottom: 0; }
.card .num {
  display: grid; place-items: center; width: 30px; height: 30px; border-radius: 8px;
  background: var(--panel-2); border: 1px solid var(--line-2);
  color: var(--brass); font-weight: 800; font-size: 13px; margin-bottom: 14px;
}

/* circle cards */
.circle { position: relative; padding: 28px; border-radius: 16px; background: var(--panel); border: 1px solid var(--line); }
.circle.lead { border-color: rgba(200,164,92,.4); background: linear-gradient(180deg, rgba(200,164,92,.06), transparent 46%), var(--panel); }
.circle .tag {
  display: inline-block; font-size: 10px; letter-spacing: .18em; text-transform: uppercase;
  font-weight: 800; padding: 5px 10px; border-radius: 999px;
  background: rgba(200,164,92,.14); color: var(--brass); border: 1px solid rgba(200,164,92,.3); margin-bottom: 14px;
}
.circle .tag.quiet { background: var(--panel-2); color: var(--mut); border-color: var(--line-2); }
ul.ticks { list-style: none; margin: 16px 0 0; padding: 0; }
ul.ticks li { position: relative; padding-left: 26px; margin-bottom: 9px; color: var(--ink-2); font-size: 15px; }
ul.ticks li::before {
  content: ""; position: absolute; left: 6px; top: 9px; width: 6px; height: 6px;
  border-radius: 50%; background: var(--brass);
}
ul.ticks.no li::before { background: var(--mut-2); }

/* ---------- vision ---------- */
.vision {
  margin-top: 34px;
  padding: 30px clamp(22px, 4vw, 38px);
  border: 1px solid rgba(200, 164, 92, .32);
  border-radius: 16px;
  background:
    radial-gradient(70% 120% at 8% 0%, rgba(200, 164, 92, .09), transparent 62%),
    var(--panel);
}
.vision .kicker { margin-bottom: 14px; }
.vision-line {
  font-size: clamp(19px, 2.6vw, 26px);
  line-height: 1.45;
  font-weight: 650;
  letter-spacing: -0.012em;
  color: var(--ink);
  max-width: 46ch;
  margin: 0 0 16px;
}

/* ---------- ladder (verification steps) ---------- */
.ladder { counter-reset: rung; display: grid; gap: 0; border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; }
.rung { display: grid; grid-template-columns: 58px 1fr; gap: 18px; padding: 22px 24px; background: var(--panel); border-bottom: 1px solid var(--line); }
.rung:last-child { border-bottom: 0; }
.rung .n {
  counter-increment: rung; width: 34px; height: 34px; border-radius: 9px;
  display: grid; place-items: center; background: var(--panel-2); border: 1px solid var(--line-2);
  color: var(--brass); font-weight: 800; font-size: 14px;
}
.rung .n::before { content: counter(rung); }
.rung h3 { margin-bottom: 4px; }
.rung p { margin: 0; font-size: 15px; color: var(--mut); }
@media (max-width: 560px) { .rung { grid-template-columns: 42px 1fr; gap: 14px; padding: 18px; } }

/* ---------- event ---------- */
.event { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: start; }
@media (max-width: 860px) { .event { grid-template-columns: 1fr; } }
.datebox {
  border: 1px solid rgba(200,164,92,.34); border-radius: 16px; overflow: hidden; background: var(--panel);
}
.datebox .top { background: linear-gradient(160deg, rgba(200,164,92,.16), transparent); padding: 22px 24px; border-bottom: 1px solid var(--line); }
.datebox .d { font-size: 44px; font-weight: 800; letter-spacing: -0.03em; line-height: 1; }
.datebox .m { color: var(--brass); font-size: 12px; letter-spacing: .2em; text-transform: uppercase; font-weight: 800; margin-top: 8px; }
.datebox .rows { padding: 8px 24px 20px; }
.datebox .row { display: flex; gap: 14px; padding: 12px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.datebox .row:last-child { border-bottom: 0; }
.datebox .row span:first-child { color: var(--mut); width: 92px; flex: none; }

.lineup { list-style: none; margin: 0; padding: 0; }
.lineup li { display: flex; gap: 16px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.lineup li:last-child { border-bottom: 0; }
.lineup .av {
  width: 42px; height: 42px; flex: none; border-radius: 50%;
  background: var(--panel-2); border: 1px solid var(--line-2);
  display: grid; place-items: center; color: var(--brass); font-size: 15px; font-weight: 800;
}
.lineup b { display: block; font-size: 15px; }
.lineup span { font-size: 13.5px; color: var(--mut); }

/* ---------- sponsor tiers ---------- */
.tier { display: flex; flex-direction: column; background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 26px; }
.tier.lead { border-color: rgba(200,164,92,.45); box-shadow: 0 0 0 1px rgba(200,164,92,.08) inset; }
.tier .price { font-size: 30px; font-weight: 800; letter-spacing: -0.02em; margin: 6px 0 2px; }
.tier .price small { font-size: 13px; font-weight: 600; color: var(--mut); letter-spacing: 0; }
.tier ul.ticks { flex: 1; margin-top: 18px; }
.tier .btn { margin-top: 20px; width: 100%; }

/* ---------- forms ---------- */
.form { background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: clamp(22px, 3.5vw, 34px); }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 13.5px; font-weight: 650; color: var(--ink); margin-bottom: 6px; }
.field .hint { font-size: 12.5px; color: var(--mut-2); margin: 5px 0 0; line-height: 1.5; }
.field .req { color: var(--brass); }
input[type=text], input[type=email], input[type=tel], input[type=url], input[type=password], select, textarea {
  width: 100%; padding: 11px 13px; border-radius: 10px;
  border: 1px solid var(--line-2); background: #070a0f; color: var(--ink);
  font: 15px/1.5 var(--sans); transition: border-color .15s ease;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--brass); }
input::placeholder, textarea::placeholder { color: #4d5a6b; }
textarea { min-height: 104px; resize: vertical; }
select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--mut) 50%), linear-gradient(135deg, var(--mut) 50%, transparent 50%); background-position: right 16px center, right 11px center; background-size: 5px 5px, 5px 5px; background-repeat: no-repeat; padding-right: 34px; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 620px) { .row2 { grid-template-columns: 1fr; } }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.choice { display: grid; gap: 10px; }
.choice label {
  display: flex; gap: 12px; align-items: flex-start; padding: 14px 16px; cursor: pointer;
  border: 1px solid var(--line-2); border-radius: 12px; background: #070a0f; transition: border-color .15s ease, background .15s ease;
}
.choice label:hover { border-color: var(--mut-2); }
.choice input { margin: 3px 0 0; accent-color: var(--brass); flex: none; }
.choice input:checked ~ .txt b { color: var(--brass); }
.choice label:has(input:checked) { border-color: var(--brass); background: rgba(200,164,92,.06); }
.choice .txt b { display: block; font-size: 14.5px; margin-bottom: 2px; }
.choice .txt span { font-size: 13px; color: var(--mut); }

.check { display: flex; gap: 11px; align-items: flex-start; font-size: 13.5px; color: var(--ink-2); }
.check input { margin: 4px 0 0; accent-color: var(--brass); flex: none; }

.msg { padding: 12px 15px; border-radius: 10px; font-size: 14px; margin-bottom: 16px; display: none; }
.msg.show { display: block; }
.msg.err { background: rgba(226,112,95,.1); border: 1px solid rgba(226,112,95,.35); color: #f0a99c; }
.msg.ok  { background: rgba(98,185,138,.1); border: 1px solid rgba(98,185,138,.35); color: #9adcb8; }

/* step progress */
.steps { display: flex; gap: 8px; margin-bottom: 26px; }
.steps div { flex: 1; height: 3px; border-radius: 2px; background: var(--line-2); transition: background .25s ease; }
.steps div.on { background: var(--brass); }

/* OTP boxes */
.otp { display: flex; gap: 9px; justify-content: flex-start; }
.otp input {
  width: 46px; height: 56px; text-align: center; font-size: 22px; font-weight: 700;
  letter-spacing: 0; padding: 0; border-radius: 10px;
}
@media (max-width: 420px) { .otp input { width: 40px; height: 50px; font-size: 19px; } }

/* ---------- faq ---------- */
details.faq { border: 1px solid var(--line); border-radius: 12px; background: var(--panel); margin-bottom: 10px; }
details.faq summary {
  cursor: pointer; padding: 17px 22px; font-weight: 650; font-size: 15.5px; list-style: none;
  display: flex; justify-content: space-between; gap: 16px; align-items: center;
}
details.faq summary::-webkit-details-marker { display: none; }
details.faq summary::after { content: "+"; color: var(--brass); font-size: 20px; font-weight: 400; flex: none; }
details.faq[open] summary::after { content: "\2013"; }
details.faq .body { padding: 0 22px 18px; color: var(--mut); font-size: 15px; }

/* ---------- footer ---------- */
footer.site { border-top: 1px solid var(--line); padding: 40px 0; background: var(--bg-2); }
footer.site .in { display: flex; flex-wrap: wrap; gap: 20px; align-items: center; justify-content: space-between; }
footer.site a { color: var(--mut); font-size: 14px; }
footer.site a:hover { color: var(--brass); }
footer.site .links { display: flex; flex-wrap: wrap; gap: 20px; }

/* ---------- misc ---------- */
.badge {
  display: inline-flex; align-items: center; gap: 7px; padding: 6px 13px; border-radius: 999px;
  border: 1px solid var(--line-2); background: var(--panel); font-size: 12.5px; color: var(--mut); font-weight: 600;
}
.badge .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--brass); flex: none; }
.rule { height: 1px; background: var(--line); border: 0; margin: 0; }
.center { text-align: center; }
.mt0 { margin-top: 0; } .mb0 { margin-bottom: 0; }