/* =====================================================================
   Kanari — public landing page
   Blue of Sidi Bou Saïd, canary yellow, and the ESP32's LCD as the hero.
   ===================================================================== */
:root {
	--blue: #17468C;
	--night: #0B1B3F;
	--canary: #F5B800;
	--canary-deep: #D99500;
	--paper: #F6F8FC;
	--ink: #0F1B33;
	--muted: #55627C;
	--line: #DCE3F0;
	--lcd: #B9D84A;
	--lcd-ink: #1C2A0C;
	--display: "Bricolage Grotesque", "Segoe UI", sans-serif;
	--body: "Figtree", "Segoe UI", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--body); font-size: 17px; line-height: 1.6; -webkit-font-smoothing: antialiased; }
img, svg { display: block; }
a { color: inherit; }
:focus-visible { outline: 3px solid var(--canary); outline-offset: 3px; border-radius: 6px; }
.wrap { width: min(1160px, 100% - 32px); margin-inline: auto; }

/* ---------- buttons ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; padding: 0 22px; border-radius: 14px; font-weight: 700; font-size: 16px; text-decoration: none; transition: background .15s, transform .15s; }
.btn-primary { background: var(--canary); color: var(--night); }
.btn-primary:hover { background: #FFC81F; }
.btn-ghost { color: #fff; border: 1.5px solid rgba(255, 255, 255, .35); }
.btn-ghost:hover { background: rgba(255, 255, 255, .1); }
.btn-dark { background: var(--blue); color: #fff; }
.btn-dark:hover { background: var(--night); }

/* ---------- header ---------- */
.top { position: absolute; inset: 0 0 auto; z-index: 5; }
.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 78px; }
.logo { display: flex; align-items: center; gap: 10px; color: #fff; text-decoration: none; }
.logo svg { width: 40px; height: 40px; }
.logo b { font-family: var(--display); font-size: 25px; font-weight: 800; letter-spacing: -.03em; }
.nav { display: flex; align-items: center; gap: 26px; }
.nav a.link { color: #C9D6F2; text-decoration: none; font-weight: 600; font-size: 15.5px; }
.nav a.link:hover { color: #fff; }
.nav .btn { min-height: 42px; padding: 0 16px; font-size: 15px; }

/* ---------- hero ---------- */
.hero { position: relative; overflow: hidden; color: #fff; background: radial-gradient(900px 520px at 85% 30%, #1F57AA 0%, transparent 70%), var(--night); padding: 140px 0 96px; }
.hero::after { content: ""; position: absolute; inset: auto 0 0; height: 2px; background: var(--canary); }
.hero .wrap { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: 56px; align-items: center; }
.hero h1 { font-family: var(--display); font-weight: 800; font-size: clamp(42px, 6vw, 74px); line-height: 1.02; letter-spacing: -.035em; margin: 0 0 22px; max-width: 12ch; }
.hero .lead { font-size: 19px; color: #C9D6F2; max-width: 46ch; margin: 0 0 32px; }
.hero .ctas { display: flex; flex-wrap: wrap; gap: 12px; }
.hero .ar { margin-top: 34px; display: flex; align-items: center; gap: 12px; color: #93A8D4; font-size: 14.5px; }
.hero .ar span[lang="ar"] { font-family: "Tajawal", sans-serif; font-size: 24px; font-weight: 700; color: var(--canary); }

/* the arch (a Sidi Bou Saïd door) holding the ESP32 screen */
.stage { position: relative; justify-self: center; width: min(460px, 100%); }
.arch { position: relative; aspect-ratio: 4 / 5; border-radius: 999px 999px 26px 26px; background: linear-gradient(180deg, #2457A6 0%, #17468C 100%); border: 10px solid #F6F8FC; box-shadow: 0 40px 80px -30px rgba(0, 0, 0, .6); display: flex; flex-direction: column; align-items: center; justify-content: flex-end; padding: 0 26px 30px; overflow: hidden; }
.arch .studs { position: absolute; inset: 22px 22px auto; height: 50%; border-radius: 999px 999px 0 0; border: 2px dotted rgba(246, 248, 252, .45); border-bottom: 0; }
.arch .bird { position: absolute; top: 19%; left: 50%; width: 42%; transform: translateX(-50%); }

.lcd { position: relative; width: 100%; background: #13306A; border-radius: 14px; padding: 14px; box-shadow: inset 0 0 0 2px #0A1E47; }
.lcd-screen { background: var(--lcd); border-radius: 6px; padding: 12px 14px; box-shadow: inset 0 0 18px rgba(30, 60, 0, .35); font-family: "VT323", "Courier New", monospace; color: var(--lcd-ink); font-size: clamp(22px, 3.2vw, 30px); line-height: 1.15; letter-spacing: .06em; }
.lcd-line { display: block; white-space: pre; overflow: hidden; height: 1.15em; }
.lcd-caption { display: flex; justify-content: space-between; margin-top: 10px; font-size: 12.5px; color: #9FB4E0; }
.lcd-caption b { color: #fff; font-weight: 600; }

.chip { position: absolute; display: flex; align-items: center; gap: 10px; padding: 10px 14px; border-radius: 14px; background: #fff; color: var(--ink); font-size: 14px; font-weight: 600; box-shadow: 0 18px 40px -18px rgba(0, 0, 0, .55); }
.chip svg { width: 20px; height: 20px; flex: none; }
.chip small { display: block; font-weight: 500; color: var(--muted); font-size: 12.5px; }
.chip.lamp { left: -34px; top: 26%; }
.chip.lamp svg { color: var(--canary-deep); }
.chip.qr { right: -30px; top: 52%; }
.chip.qr svg { color: var(--blue); }

/* ---------- sections ---------- */
section { padding: 104px 0; }
.sec-head { max-width: 640px; margin-bottom: 56px; }
.sec-head h2 { font-family: var(--display); font-size: clamp(32px, 4vw, 46px); line-height: 1.08; letter-spacing: -.03em; margin: 0 0 14px; }
.sec-head p { color: var(--muted); margin: 0; font-size: 18px; }

/* features: one wide row for the room itself, then a two-column list */
.feature-main { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 48px; align-items: center; padding: 40px; border-radius: 28px; background: #fff; border: 1px solid var(--line); margin-bottom: 64px; }
.feature-main h3 { font-family: var(--display); font-size: 30px; letter-spacing: -.02em; line-height: 1.15; margin: 0 0 12px; }
.feature-main p { color: var(--muted); margin: 0 0 18px; }
.ticks { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.ticks li { display: flex; gap: 10px; align-items: flex-start; }
.ticks svg { width: 20px; height: 20px; color: #1F9D55; flex: none; margin-top: 4px; }

.readout { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.readout div { border-radius: 18px; padding: 18px; background: var(--paper); }
.readout small { display: block; color: var(--muted); font-weight: 600; font-size: 13.5px; }
.readout b { display: block; font-family: var(--display); font-size: 34px; letter-spacing: -.02em; line-height: 1.2; }
.readout b em { font-style: normal; font-size: 17px; color: var(--muted); font-family: var(--body); font-weight: 500; }
.readout .on { color: #1F9D55; }

.flist { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 64px; row-gap: 44px; }
.fitem { display: grid; grid-template-columns: 52px 1fr; gap: 18px; align-items: start; }
.fitem .ic { width: 52px; height: 52px; border-radius: 16px; display: grid; place-items: center; background: #E6EDF9; color: var(--blue); }
.fitem .ic svg { width: 26px; height: 26px; }
.fitem h3 { margin: 4px 0 6px; font-size: 19.5px; letter-spacing: -.01em; }
.fitem p { margin: 0; color: var(--muted); font-size: 16px; }

/* how it works: a real sequence, so it is numbered */
.steps-sec { background: #fff; border-block: 1px solid var(--line); }
.steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 32px; counter-reset: s; }
.steps li { counter-increment: s; position: relative; padding-top: 70px; }
.steps li::before { content: counter(s); position: absolute; top: 0; left: 0; width: 50px; height: 50px; border-radius: 50%; display: grid; place-items: center; background: var(--canary); color: var(--night); font-family: var(--display); font-weight: 800; font-size: 22px; }
.steps li:not(:last-child)::after { content: ""; position: absolute; top: 25px; left: 66px; right: -16px; height: 2px; background: repeating-linear-gradient(90deg, var(--line) 0 8px, transparent 8px 14px); }
.steps h3 { margin: 0 0 6px; font-size: 20px; }
.steps p { margin: 0; color: var(--muted); }

/* made for Tunisia */
.local { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 56px; align-items: center; }
.cert { background: #fff; border-radius: 22px; border: 1px solid var(--line); padding: 26px; box-shadow: 0 30px 60px -36px rgba(15, 27, 51, .4); transform: rotate(-1.5deg); }
.cert-top { display: flex; justify-content: space-between; align-items: center; padding-bottom: 14px; border-bottom: 1px solid var(--line); margin-bottom: 16px; }
.cert-top b { font-family: var(--display); font-size: 22px; color: var(--blue); letter-spacing: -.02em; }
.cert-top span { font-size: 13px; color: var(--muted); }
.cert-ring { font-family: "Courier New", monospace; font-weight: 700; font-size: 26px; margin-bottom: 14px; }
.cert dl { display: grid; grid-template-columns: auto 1fr; gap: 8px 18px; margin: 0; font-size: 15px; }
.cert dt { color: var(--muted); }
.cert dd { margin: 0; font-weight: 600; }
.souche { display: inline-block; padding: 2px 10px; border-radius: 8px; background: #FFF4D1; color: #6B4A00; font-family: "Courier New", monospace; font-weight: 700; }
.local ul { list-style: none; padding: 0; margin: 24px 0 0; display: grid; gap: 14px; }
.local li { padding-left: 18px; border-left: 3px solid var(--canary); }
.local li b { display: block; }
.local li span { color: var(--muted); font-size: 16px; }

/* final call */
.cta { background: var(--blue); color: #fff; border-radius: 32px; padding: 64px 48px; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 32px; align-items: center; }
.cta h2 { font-family: var(--display); font-size: clamp(30px, 4vw, 44px); letter-spacing: -.03em; line-height: 1.08; margin: 0 0 10px; }
.cta p { margin: 0; color: #C9D6F2; max-width: 52ch; }
.cta .ctas { display: flex; gap: 12px; flex-wrap: wrap; }
.last { padding-top: 0; }

footer { padding: 36px 0 44px; color: var(--muted); font-size: 14.5px; }
footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; align-items: center; }
footer .logo { color: var(--ink); }
footer .logo b { font-size: 20px; }
footer .logo svg { width: 30px; height: 30px; }

/* ---------- responsive ---------- */
@media (max-width: 960px) {
	.hero { padding: 116px 0 72px; }
	.hero .wrap, .feature-main, .local, .cta { grid-template-columns: 1fr; }
	.stage { margin-top: 12px; }
	.chip.lamp { left: -8px; }
	.chip.qr { right: -8px; }
	.flist { grid-template-columns: 1fr; }
	.steps { grid-template-columns: 1fr; gap: 28px; }
	.steps li { padding: 4px 0 0 70px; }
	.steps li::after { display: none; }
	.cert { transform: none; }
}
@media (max-width: 640px) {
	body { font-size: 16px; }
	.nav a.link { display: none; }
	.nav { gap: 8px; }
	.nav .btn-ghost { display: none; }
	section { padding: 72px 0; }
	.hero .lead { font-size: 17px; }
	.hero .ctas { flex-direction: column; }
	.hero .ctas .btn { width: 100%; }
	.chip { font-size: 13px; padding: 8px 10px; }
	.chip.lamp { top: 10%; }
	.feature-main { padding: 22px; border-radius: 22px; }
	.cta { padding: 40px 22px; border-radius: 24px; }
	.cta .ctas .btn { flex: 1; }
}
@media (prefers-reduced-motion: reduce) {
	html { scroll-behavior: auto; }
	.btn { transition: none; }
}