/* =========================================================
   SMSZona.cz — design tokens
   Motiv: noční telekomunikační panel — signál, displej, data.
   ========================================================= */
:root {
  --bg: #0A1220;
  --bg-soft: #0E1830;
  --surface: #121D34;
  --surface-2: #1A2947;
  --border: #253558;
  --text: #E9EDF7;
  --text-dim: #93A2C4;
  --text-faint: #5E6D91;
  --accent: #34D9BE;       /* signál — primární */
  --accent-dim: #1B7A6B;
  --amber: #FFB238;        /* teplý akcent — CTA / badge */
  --danger: #FB7185;
  --success: #4ADE80;

  --font-display: 'Space Grotesk', 'Inter', sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', 'SFMono-Regular', Menlo, monospace;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --shadow-lg: 0 24px 60px -20px rgba(0,0,0,0.55);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(60rem 30rem at 85% -10%, rgba(52,217,190,0.10), transparent 60%),
    radial-gradient(50rem 26rem at -10% 10%, rgba(255,178,56,0.06), transparent 60%);
}

h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 700; line-height: 1.15; margin: 0 0 0.5em; letter-spacing: -0.01em; }
p { margin: 0 0 1em; color: var(--text-dim); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--accent); color: #04241f; padding: 10px 16px; z-index: 999;
  border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px; padding: 12px 22px; border-radius: 999px;
  font-family: var(--font-body); font-weight: 600; font-size: 0.95rem;
  border: 1px solid transparent; cursor: pointer; text-decoration: none;
  transition: transform .15s ease, background .15s ease, border-color .15s ease, opacity .15s ease;
}
.btn:hover { text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--accent); color: #04241f; }
.btn--primary:hover { background: #4de6cc; }
.btn--ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn--danger { background: transparent; color: var(--danger); border-color: rgba(251,113,133,0.4); }
.btn--danger:hover { background: rgba(251,113,133,0.1); }
.btn--lg { padding: 15px 28px; font-size: 1.02rem; }
.btn--sm { padding: 8px 16px; font-size: 0.85rem; }
.btn--block { width: 100%; }
.btn[disabled] { opacity: 0.55; cursor: not-allowed; }

/* ---------- Header ---------- */
.site-header { border-bottom: 1px solid var(--border); background: rgba(10,18,32,0.85); backdrop-filter: blur(10px); position: sticky; top: 0; z-index: 50; }
.site-header__inner { display: flex; align-items: center; justify-content: space-between; padding: 16px 24px; }
.logo { display: flex; align-items: center; gap: 10px; color: var(--text); }
.logo__mark {
  width: 26px; height: 26px; border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--amber));
  position: relative; flex-shrink: 0;
}
.logo__mark::after {
  content: ""; position: absolute; inset: 6px; border-radius: 3px; background: var(--bg);
}
.logo__text { font-family: var(--font-display); font-weight: 700; font-size: 1.15rem; color: var(--text); }
.logo__text small { font-family: var(--font-mono); font-size: 0.6rem; color: var(--text-faint); font-weight: 500; margin-left: 4px; text-transform: uppercase; }
.logo__accent { color: var(--accent); }
.main-nav { display: flex; align-items: center; gap: 20px; }
.main-nav a:not(.btn) { color: var(--text-dim); font-weight: 500; font-size: 0.94rem; }
.main-nav a:not(.btn):hover { color: var(--text); text-decoration: none; }

/* ---------- Flash ---------- */
.flash { padding: 12px 0; font-weight: 500; font-size: 0.92rem; }
.flash--success { background: rgba(74,222,128,0.12); color: var(--success); }
.flash--error { background: rgba(251,113,133,0.12); color: var(--danger); }

/* ---------- Hero ---------- */
.hero { padding: 72px 0 40px; }
.hero__inner { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center; }
.eyebrow { font-family: var(--font-mono); text-transform: uppercase; letter-spacing: 0.14em; font-size: 0.75rem; color: var(--accent); margin-bottom: 14px; }
.hero h1 { font-size: clamp(2.2rem, 4.4vw, 3.4rem); color: var(--text); }
.hero__underline { position: relative; color: var(--accent); }
.hero__lead { font-size: 1.08rem; max-width: 46ch; }
.hero__cta { display: flex; gap: 14px; flex-wrap: wrap; margin: 22px 0 14px; }
.hero__note { font-family: var(--font-mono); font-size: 0.82rem; color: var(--text-faint); }

.phone-mock {
  width: 280px; margin: 0 auto; background: var(--surface);
  border: 1px solid var(--border); border-radius: 34px; padding: 14px;
  box-shadow: var(--shadow-lg);
}
.phone-mock__notch { width: 70px; height: 6px; background: var(--border); border-radius: 4px; margin: 0 auto 12px; }
.phone-mock__screen {
  background: var(--bg-soft); border-radius: 20px; padding: 18px 14px 16px;
  min-height: 340px; display: flex; flex-direction: column; justify-content: flex-end; gap: 12px;
}
.bubble { background: var(--surface-2); border: 1px solid var(--border); color: var(--text); padding: 10px 14px; border-radius: 16px 16px 16px 4px; font-size: 0.86rem; max-width: 92%; }
.phone-mock__composer {
  display: flex; align-items: center; justify-content: space-between;
  background: var(--surface); border: 1px solid var(--border); border-radius: 999px;
  padding: 10px 14px; margin-top: 6px;
}
.phone-mock__input { color: var(--text-faint); font-size: 0.85rem; }
.phone-mock__counter { font-family: var(--font-mono); font-size: 0.72rem; color: var(--accent); }
.signal-bars { display: flex; align-items: flex-end; gap: 4px; height: 18px; align-self: flex-end; margin-top: 4px; }
.signal-bars span { width: 4px; background: var(--accent); border-radius: 2px; opacity: 0.35; animation: signal-pulse 1.6s ease-in-out infinite; }
.signal-bars span:nth-child(1) { height: 6px; animation-delay: 0s; }
.signal-bars span:nth-child(2) { height: 10px; animation-delay: .15s; }
.signal-bars span:nth-child(3) { height: 14px; animation-delay: .3s; }
.signal-bars span:nth-child(4) { height: 18px; animation-delay: .45s; }
@keyframes signal-pulse { 0%, 100% { opacity: 0.35; } 50% { opacity: 1; } }
@media (prefers-reduced-motion: reduce) { .signal-bars span { animation: none; opacity: 0.8; } }

/* ---------- Stats ---------- */
.stats { border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); background: var(--bg-soft); }
.stats__inner { display: grid; grid-template-columns: repeat(3,1fr); text-align: center; padding: 34px 24px; }
.stat__num { display: block; font-family: var(--font-mono); font-size: 2.2rem; font-weight: 600; color: var(--accent); }
.stat__label { font-size: 0.85rem; color: var(--text-dim); }

/* ---------- How it works ---------- */
.how { padding: 76px 0; }
.how h2 { text-align: center; font-size: 2rem; margin-bottom: 44px; }
.how__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.how__step { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 22px; }
.how__num { font-family: var(--font-mono); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--amber); }
.how__step h3 { font-size: 1.08rem; margin: 10px 0 8px; }
.how__step p { font-size: 0.92rem; margin: 0; }

/* ---------- Pricing teaser / pricing page ---------- */
.pricing-teaser { background: linear-gradient(135deg, rgba(52,217,190,0.08), rgba(255,178,56,0.05)); border-top: 1px solid var(--border); padding: 64px 0; }
.pricing-teaser__inner { text-align: center; max-width: 640px; margin: 0 auto; }
.pricing { padding: 64px 0 90px; }
.pricing h1 { text-align: center; font-size: 2.1rem; }
.pricing__lead { text-align: center; max-width: 56ch; margin: 0 auto 40px; }
.pricing__grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 18px; }

/* ---------- Plan sections (VIP / MEGA / Pakiety) ---------- */
.plan-section { margin: 0 0 68px; }
.plan-section__head { max-width: 640px; margin: 0 auto 26px; text-align: center; }
.plan-section__eyebrow { font-family: var(--font-mono); text-transform: uppercase; letter-spacing: 0.12em; font-size: 0.72rem; color: var(--amber); }
.plan-section__head h2 { font-size: 1.7rem; margin: 6px 0 8px; }
.plan-section__head p { font-size: 0.94rem; }

.feature-note { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 16px 20px; margin-bottom: 22px; font-size: 0.9rem; color: var(--text-dim); }
.feature-note strong { color: var(--text); }
.feature-note ul { margin: 8px 0 0; padding-left: 0; list-style: none; }
.feature-note li { margin: 4px 0; }

.benefit-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 14px; margin-bottom: 26px; }
.benefit-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 16px 18px; display: flex; gap: 12px; align-items: flex-start; }
.benefit-card__icon { font-size: 1.3rem; line-height: 1; flex-shrink: 0; }
.benefit-card h3 { font-size: 0.94rem; margin: 0 0 3px; color: var(--text); }
.benefit-card p { font-size: 0.82rem; margin: 0; color: var(--text-faint); }

.status-banner { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; background: linear-gradient(135deg, rgba(52,217,190,0.12), rgba(255,178,56,0.08)); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 14px 20px; margin-bottom: 36px; font-size: 0.9rem; }
.status-banner strong { color: var(--accent); }
.price-card { position: relative; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 30px 24px; text-align: center; }
.price-card--featured { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent) inset; }
.price-card__badge { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); background: var(--accent); color: #04241f; font-size: 0.72rem; font-weight: 700; padding: 4px 12px; border-radius: 999px; }
.price-card h2 { font-size: 1.15rem; margin-bottom: 4px; }
.price-card__count { font-family: var(--font-mono); color: var(--text-dim); margin-bottom: 10px; }
.price-card__price { font-family: var(--font-display); font-size: 2.1rem; color: var(--text); margin-bottom: 2px; }
.price-card__unit { font-size: 0.8rem; color: var(--text-faint); margin-bottom: 20px; }
.pricing__note { text-align: center; color: var(--text-faint); font-size: 0.85rem; margin-top: 34px; }

/* ---------- Auth pages ---------- */
.auth-page { padding: 64px 0 90px; }
.auth-page__inner { display: flex; justify-content: center; }
.auth-card { width: 100%; max-width: 440px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 36px; }
.auth-card h1 { font-size: 1.55rem; }
.auth-card__lead { font-size: 0.92rem; }
.auth-card__switch { text-align: center; margin-top: 18px; font-size: 0.9rem; }
.admin-auth { padding-top: 110px; }

.form { display: flex; flex-direction: column; gap: 4px; margin-top: 8px; }
.form label { font-size: 0.85rem; font-weight: 600; color: var(--text-dim); margin-top: 12px; }
.form input, .form textarea {
  background: var(--bg-soft); border: 1px solid var(--border); color: var(--text);
  border-radius: var(--radius-sm); padding: 12px 14px; font-family: var(--font-body); font-size: 0.96rem;
  margin-top: 2px;
}
.form input:focus, .form textarea:focus { border-color: var(--accent); }
.field-hint { font-size: 0.78rem; color: var(--text-faint); margin: 4px 0 0; }
.checkbox-line { display: flex; align-items: flex-start; gap: 10px; font-size: 0.85rem; color: var(--text-dim); font-weight: 400; margin-top: 16px; }
.checkbox-line input { margin-top: 3px; }
.form .btn { margin-top: 18px; }

.alert { border-radius: var(--radius-sm); padding: 12px 16px; font-size: 0.88rem; margin: 14px 0; }
.alert ul { margin: 0; padding-left: 18px; }
.alert--error { background: rgba(251,113,133,0.12); color: var(--danger); border: 1px solid rgba(251,113,133,0.3); }
.alert--success { background: rgba(74,222,128,0.12); color: var(--success); border: 1px solid rgba(74,222,128,0.3); }

/* ---------- Modal ---------- */
.modal-overlay { position: fixed; inset: 0; background: rgba(6,10,20,0.72); display: flex; align-items: center; justify-content: center; z-index: 200; padding: 20px; }
.modal { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 32px; max-width: 420px; width: 100%; box-shadow: var(--shadow-lg); }
.modal h2 { font-size: 1.25rem; }
.modal__notice { background: rgba(255,178,56,0.1); border: 1px solid rgba(255,178,56,0.35); color: var(--amber); padding: 10px 14px; border-radius: var(--radius-sm); font-size: 0.85rem; }
.modal input[type="text"] { text-align: center; font-family: var(--font-mono); font-size: 1.4rem; letter-spacing: 0.35em; }
.modal .btn--ghost { margin-top: 10px; }

/* ---------- Dashboard ---------- */
.dashboard { padding: 48px 0 90px; }
.dashboard__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; align-items: start; }
.panel { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 28px; }
.panel h1, .panel h2 { font-size: 1.3rem; }
.balance-row { display: flex; align-items: center; gap: 14px; margin: 14px 0 20px; flex-wrap: wrap; }
.balance-chip { background: var(--bg-soft); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 10px 18px; text-align: center; }
.balance-chip__num { display: block; font-family: var(--font-mono); font-size: 1.3rem; color: var(--accent); font-weight: 600; }
.balance-chip__label { font-size: 0.72rem; color: var(--text-faint); text-transform: uppercase; letter-spacing: 0.05em; }

.msg-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 12px; max-height: 560px; overflow-y: auto; }
.msg-list__item { border: 1px solid var(--border); border-radius: var(--radius-md); padding: 14px 16px; background: var(--bg-soft); }
.msg-list__top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 6px; }
.msg-list__phone { font-family: var(--font-mono); font-size: 0.85rem; color: var(--text-dim); }
.msg-list__text { font-size: 0.88rem; margin: 0 0 6px; color: var(--text); }
.msg-list__date { font-size: 0.72rem; color: var(--text-faint); }
.status-pill { font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; padding: 3px 10px; border-radius: 999px; }
.status--pending { background: rgba(255,178,56,0.15); color: var(--amber); }
.status--ok { background: rgba(74,222,128,0.15); color: var(--success); }
.status--error { background: rgba(251,113,133,0.15); color: var(--danger); }
.empty-state { color: var(--text-faint); font-size: 0.9rem; }

.tag-mini { font-family: var(--font-mono); font-size: 0.62rem; text-transform: uppercase; background: var(--surface-2); color: var(--text-faint); border-radius: 6px; padding: 1px 6px; margin-left: 4px; }

.dashboard__tools { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; margin-top: 26px; }
.tool-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 20px; text-align: center; color: var(--text); transition: border-color .15s ease, transform .15s ease; }
.tool-card:hover { border-color: var(--accent); text-decoration: none; transform: translateY(-2px); }
.tool-card__icon { display: block; font-size: 1.6rem; margin-bottom: 6px; }
.tool-card__label { display: block; font-weight: 600; margin-bottom: 2px; }
.tool-card__hint { display: block; font-size: 0.76rem; color: var(--text-faint); }

/* ---------- Kontakty / Šablony / Příležitosti (CRUD stránky) ---------- */
.crud-page { padding: 48px 0 90px; }
.crud-page__head { display: flex; justify-content: space-between; align-items: flex-end; flex-wrap: wrap; gap: 12px; margin-bottom: 24px; }
.crud-page__head h1 { margin-bottom: 4px; }
.crud-page__count { font-family: var(--font-mono); font-size: 0.85rem; color: var(--text-faint); }
.crud-grid { display: grid; grid-template-columns: 340px 1fr; gap: 26px; align-items: start; }
.crud-table { width: 100%; border-collapse: collapse; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-md); overflow: hidden; }
.crud-table th, .crud-table td { padding: 12px 14px; border-bottom: 1px solid var(--border); text-align: left; font-size: 0.87rem; vertical-align: top; }
.crud-table th { color: var(--text-faint); text-transform: uppercase; font-size: 0.68rem; letter-spacing: 0.05em; }
.activity-pill { font-size: 0.68rem; font-weight: 700; text-transform: uppercase; padding: 3px 9px; border-radius: 999px; }
.activity-pill--active { background: rgba(74,222,128,0.15); color: var(--success); }
.activity-pill--silent { background: rgba(255,178,56,0.15); color: var(--amber); }
.activity-pill--none { background: var(--surface-2); color: var(--text-faint); }

/* ---------- Status pages (payment success/cancel) ---------- */
.status-page { padding: 100px 0; text-align: center; }
.status-page__inner { max-width: 460px; margin: 0 auto; }
.status-icon { width: 60px; height: 60px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.6rem; margin: 0 auto 20px; }
.status-icon--ok { background: rgba(74,222,128,0.15); color: var(--success); }
.status-icon--warn { background: rgba(255,178,56,0.15); color: var(--amber); }

/* ---------- Legal pages ---------- */
.legal-page { padding: 56px 0 90px; }
.legal-page__inner { max-width: 760px; margin: 0 auto; }
.legal-page__updated { color: var(--text-faint); font-size: 0.85rem; }
.legal-page h2 { font-size: 1.2rem; margin-top: 36px; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--border); background: var(--bg-soft); padding: 54px 0 0; }
.site-footer__inner { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 32px; padding-bottom: 34px; }
.site-footer__col { display: flex; flex-direction: column; gap: 8px; }
.site-footer__col h3 { font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-faint); margin-bottom: 6px; }
.site-footer__col a { color: var(--text-dim); font-size: 0.9rem; }
.site-footer__bottom { border-top: 1px solid var(--border); padding: 18px 24px; font-size: 0.78rem; color: var(--text-faint); }

/* ---------- Admin ---------- */
.admin-body { background: var(--bg); }
.admin-header { border-bottom: 1px solid var(--border); }
.admin-header__inner { display: flex; justify-content: space-between; align-items: center; padding: 16px 24px; }
.admin-main { padding: 32px 24px 80px; }
.admin-stats { display: flex; gap: 16px; margin-bottom: 28px; flex-wrap: wrap; }
.admin-stat { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 14px 20px; font-size: 0.8rem; color: var(--text-dim); }
.admin-stat span { display: block; font-family: var(--font-mono); font-size: 1.4rem; color: var(--accent); font-weight: 600; }
.admin-table { width: 100%; border-collapse: collapse; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-md); overflow: hidden; }
.admin-table th, .admin-table td { padding: 12px 14px; border-bottom: 1px solid var(--border); text-align: left; font-size: 0.85rem; vertical-align: top; }
.admin-table th { color: var(--text-faint); text-transform: uppercase; font-size: 0.7rem; letter-spacing: 0.05em; }
.admin-table__msg { max-width: 280px; }
.admin-table__actions { display: flex; gap: 8px; }
.inline-form { display: inline; }
.muted { color: var(--text-faint); font-size: 0.78rem; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero__inner { grid-template-columns: 1fr; }
  .hero__visual { order: -1; }
  .how__grid { grid-template-columns: repeat(2, 1fr); }
  .pricing__grid { grid-template-columns: 1fr; }
  .dashboard__grid { grid-template-columns: 1fr; }
  .site-footer__inner { grid-template-columns: 1fr; }
  .stats__inner { grid-template-columns: 1fr; gap: 20px; }
}
@media (max-width: 640px) {
  .main-nav { gap: 12px; }
  .main-nav a:not(.btn) { display: none; }
  .how__grid { grid-template-columns: 1fr; }
}