/* Layout: dark-first brochure in the talkageptt.com brand (navy ground, signal cyan). Hero with a live-channel mock, then benefit sections, packages table, contact band. */
:root {
  --bg: #090c16;
  --surface: #121729;
  --surface-alt: #0d1120;
  --line: #232a44;
  --ink: #e8ebf6;
  --muted: #8b92b0;
  --faint: #5b6285;
  --primary: #22d3ee;
  --primary-soft: rgba(34, 211, 238, 0.14);
  --danger: #f43f5e;
  --danger-soft: rgba(244, 63, 94, 0.14);
  --success: #34d399;
  --on-primary: #06202a;
  --font-sans: "Inter", -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, Consolas, monospace;
  color-scheme: dark;
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #f4f6fb; --surface: #ffffff; --surface-alt: #eaeef7; --line: #d6dcea; --ink: #10162b;
    --muted: #4e5878; --faint: #7a83a3; --primary: #0b8ca6; --primary-soft: rgba(11, 140, 166, 0.12);
    --danger: #d22b4b; --danger-soft: rgba(210, 43, 75, 0.1); --success: #138a5c; --on-primary: #ffffff;
    color-scheme: light;
  }
}
:root[data-theme="light"] {
  --bg: #f4f6fb; --surface: #ffffff; --surface-alt: #eaeef7; --line: #d6dcea; --ink: #10162b;
  --muted: #4e5878; --faint: #7a83a3; --primary: #0b8ca6; --primary-soft: rgba(11, 140, 166, 0.12);
  --danger: #d22b4b; --danger-soft: rgba(210, 43, 75, 0.1); --success: #138a5c; --on-primary: #ffffff;
  color-scheme: light;
}
* { box-sizing: border-box; }
body { background: var(--bg); color: var(--ink); font-family: var(--font-sans); font-size: 16px; line-height: 1.6; margin: 0; }
.page { max-width: 1160px; margin: 0 auto; padding-inline: 20px; padding-block: 32px 72px; display: grid; gap: 88px; }
@media (max-width: 640px) { .page { padding-inline: 16px; gap: 64px; } }
h1, h2, h3 { margin: 0; text-wrap: balance; letter-spacing: -0.02em; line-height: 1.12; }
h1 { font-size: clamp(2.2rem, 5.2vw, 3.6rem); font-weight: 800; }
h2 { font-size: clamp(1.7rem, 3.2vw, 2.4rem); font-weight: 700; }
h3 { font-size: 1.12rem; font-weight: 600; letter-spacing: -0.01em; }
p { margin: 0; }
a { color: var(--primary); }
.eyebrow { font-family: var(--font-mono); font-size: .75rem; letter-spacing: .14em; text-transform: uppercase; color: var(--primary); }
.muted { color: var(--muted); }
section { display: grid; gap: 28px; scroll-margin-top: 24px; }
.head { display: grid; gap: 10px; max-width: 720px; }
.head p { color: var(--muted); font-size: 1.05rem; }

/* Top bar */
.bar { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 12px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.1rem; }
.brand svg { width: 28px; height: 28px; }
.bar nav { display: flex; flex-wrap: wrap; gap: 6px 18px; font-size: .92rem; }
.bar nav a { color: var(--muted); text-decoration: none; }
.bar nav a:hover, .bar nav a:focus-visible { color: var(--ink); }

/* Hero */
.hero { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); gap: 48px; align-items: center; }
@media (max-width: 900px) { .hero { grid-template-columns: minmax(0, 1fr); } }
.hero-copy { display: grid; gap: 20px; }
.hero-copy .lede { font-size: 1.15rem; color: var(--muted); max-width: 58ch; }
.pills { display: flex; flex-wrap: wrap; gap: 8px; }
.pill { font-size: .85rem; border: 1px solid var(--line); background: var(--surface); padding: 5px 12px; border-radius: 999px; color: var(--ink); }

/* Radio mock */
.radio { background: var(--surface); border: 1px solid var(--line); border-radius: 20px; padding: 18px; display: grid; gap: 12px; box-shadow: 0 24px 48px -16px rgba(0,0,0,.45); }
.radio-top { display: flex; justify-content: space-between; align-items: center; font-family: var(--font-mono); font-size: .75rem; color: var(--muted); }
.live { display: inline-flex; align-items: center; gap: 6px; color: var(--success); }
.live::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: currentColor; }
.ch { display: grid; grid-template-columns: auto minmax(0,1fr) auto; gap: 12px; align-items: center; padding: 12px; border-radius: 12px; background: var(--surface-alt); border: 1px solid var(--line); }
.ch .num { font-family: var(--font-mono); font-size: .78rem; color: var(--faint); }
.ch b { display: block; font-weight: 600; font-size: .95rem; }
.ch small { color: var(--muted); font-size: .8rem; }
.ch.tx { border-color: var(--primary); background: var(--primary-soft); }
.ch.sos { border-color: var(--danger); background: var(--danger-soft); }
.ch.sos .tagx { color: var(--danger); }
.tagx { font-family: var(--font-mono); font-size: .7rem; letter-spacing: .08em; text-transform: uppercase; color: var(--primary); }
.wave { display: flex; gap: 3px; align-items: center; height: 18px; }
.wave i { width: 3px; border-radius: 2px; background: var(--primary); height: 40%; }
@media (prefers-reduced-motion: no-preference) {
  .wave i { animation: w 1s ease-in-out infinite; }
  .wave i:nth-child(2){animation-delay:.1s}.wave i:nth-child(3){animation-delay:.2s}.wave i:nth-child(4){animation-delay:.3s}.wave i:nth-child(5){animation-delay:.4s}
  @keyframes w { 0%,100%{height:30%} 50%{height:100%} }
}
.ptt-btn { margin-top: 4px; border-radius: 14px; padding: 14px; text-align: center; font-weight: 700; letter-spacing: .06em; background: var(--primary); color: var(--on-primary); font-size: .9rem; }

/* Endpoint strip */
.ends { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 16px; overflow: hidden; }
@media (max-width: 900px) { .ends { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.end { background: var(--surface); padding: 18px; display: grid; gap: 6px; align-content: start; }
.end .eyebrow { color: var(--faint); }
.end p { color: var(--muted); font-size: .9rem; }

/* Feature groups */
.groups { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 20px; }
.group { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 22px; display: grid; gap: 14px; align-content: start; min-width: 0; }
.group ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.group li { display: grid; gap: 2px; padding-left: 18px; position: relative; }
.group li::before { content: ""; position: absolute; left: 0; top: .62em; width: 7px; height: 7px; border-radius: 2px; background: var(--primary); }
.group li b { font-weight: 600; font-size: .97rem; }
.group li span { color: var(--muted); font-size: .9rem; }

/* Emergency spotlight */
.sos-band { border: 1px solid var(--danger); background: linear-gradient(180deg, var(--danger-soft), transparent 70%), var(--surface); border-radius: 20px; padding: 32px; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 32px; }
@media (max-width: 800px) { .sos-band { grid-template-columns: minmax(0,1fr); padding: 22px; } }
.sos-band .eyebrow { color: var(--danger); }
.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; counter-reset: s; }
.steps li { counter-increment: s; display: grid; grid-template-columns: 34px minmax(0,1fr); gap: 12px; }
.steps li::before { content: counter(s); width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center; font-family: var(--font-mono); font-size: .82rem; border: 1px solid var(--danger); color: var(--danger); }
.steps b { display: block; font-weight: 600; }
.steps span { color: var(--muted); font-size: .92rem; }

/* Sectors */
.sectors { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 16px; }
.sector { border-top: 2px solid var(--primary); padding-top: 14px; display: grid; gap: 6px; }
.sector p { color: var(--muted); font-size: .93rem; }

/* Packages */
.tbl { overflow-x: auto; border: 1px solid var(--line); border-radius: 16px; background: var(--surface); }
table { border-collapse: collapse; width: 100%; min-width: 640px; font-size: .93rem; }
th, td { padding: 12px 16px; border-top: 1px solid var(--line); text-align: left; }
thead th { border-top: 0; vertical-align: bottom; }
thead .tier { display: grid; gap: 2px; }
thead .tier b { font-size: 1.15rem; }
thead .tier small { color: var(--muted); font-weight: 400; font-size: .8rem; }
th.c, td.c { text-align: center; }
thead th.hl, td.hl { background: var(--primary-soft); }
tbody th { font-weight: 500; }
.y { color: var(--primary); font-weight: 700; }
.n { color: var(--faint); }
.grp td { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; color: var(--faint); background: var(--surface-alt); }
.num { font-variant-numeric: tabular-nums; font-weight: 600; }
.note { color: var(--muted); font-size: .9rem; max-width: 75ch; }

/* Two-col info */
.two { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; }
.plain { display: grid; gap: 12px; align-content: start; }
.plain ul { margin: 0; padding-left: 20px; color: var(--muted); display: grid; gap: 6px; }
.plain ul b { color: var(--ink); font-weight: 600; }

.road { display: flex; flex-wrap: wrap; gap: 10px; }
.road span { border: 1px dashed var(--line); color: var(--muted); padding: 8px 14px; border-radius: 10px; font-size: .92rem; }

.cta { background: var(--surface); border: 1px solid var(--line); border-radius: 20px; padding: 36px; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 24px; align-items: center; }
@media (max-width: 760px) { .cta { grid-template-columns: minmax(0,1fr); padding: 24px; } }
.cta p { color: var(--muted); max-width: 60ch; }
.btn { display: inline-block; background: var(--primary); color: var(--on-primary); text-decoration: none; font-weight: 700; padding: 13px 22px; border-radius: 12px; white-space: nowrap; }
.btn:focus-visible, .bar nav a:focus-visible { outline: 2px solid var(--primary); outline-offset: 3px; }
footer { color: var(--faint); font-size: .82rem; border-top: 1px solid var(--line); padding-top: 18px; }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }

/* v2 additions: requirements, onboarding steps, FAQ */
.reqs { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 16px; overflow: hidden; }
.req { background: var(--surface); padding: 20px; display: grid; gap: 8px; align-content: start; min-width: 0; }
.req ul { margin: 0; padding-left: 18px; color: var(--muted); font-size: .92rem; display: grid; gap: 4px; }
.req .warn { color: var(--ink); font-size: .88rem; border-left: 3px solid var(--primary); padding-left: 10px; }
.flow4 { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; counter-reset: f; }
@media (max-width: 860px) { .flow4 { grid-template-columns: minmax(0, 1fr); } }
.flow4 li { counter-increment: f; border-top: 2px solid var(--primary); padding-top: 12px; display: grid; gap: 6px; }
.flow4 li::before { content: "Step " counter(f); font-family: var(--font-mono); font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; color: var(--primary); }
.flow4 small { color: var(--faint); font-family: var(--font-mono); font-size: .75rem; }
.flow4 p { color: var(--muted); font-size: .92rem; }
.faq { display: grid; gap: 10px; }
.faq details { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 14px 18px; }
.faq summary { cursor: pointer; font-weight: 600; list-style-position: outside; }
.faq summary:focus-visible { outline: 2px solid var(--primary); outline-offset: 4px; border-radius: 4px; }
.faq details p { color: var(--muted); margin-top: 8px; max-width: 75ch; }
.fine { color: var(--faint); font-size: .8rem; }

/* Site integration: the catalog pages live next to the homepage on talkageptt.com. */
:lang(tr) .flow4 li::before { content: "Adım " counter(f); }
a.brand { color: var(--ink); text-decoration: none; }
.bar nav a.lang-link { border: 1px solid var(--line); border-radius: 999px; padding: 2px 10px; color: var(--ink); }
.cta-actions { display: grid; gap: 10px; justify-items: start; }
.cta-actions a.mail { color: var(--muted); font-size: .92rem; }