:root {
  --green: #6a994e;
  --green-600: #52803b;
  --green-050: #eef5e8;
  --teal: #0d9488;
  --amber: #f59e0b;
  --red: #dc2626;
  --ink: #0f172a;
  --muted: #64748b;
  --line: #e5e9f0;
  --bg: #f5f8f4;
  --card: #ffffff;
  --shadow: 0 10px 30px rgba(15, 23, 42, .08);
  --radius: 18px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: "Montserrat", "Segoe UI", system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; }

.container { width: min(1120px, 92vw); margin: 0 auto; }

/* NAV */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; gap: 20px; height: 66px; }
.brand { font-weight: 800; font-size: 20px; display: flex; align-items: center; gap: 8px; }
.brand span { color: var(--green); }
.nav-links { display: flex; gap: 6px; margin-left: 8px; }
.nav-links a { padding: 8px 14px; border-radius: 10px; color: var(--muted); font-weight: 600; cursor: pointer; }
.nav-links a:hover, .nav-links a.active { color: var(--green-600); background: var(--green-050); }
.nav-right { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.chip { font-size: 12px; font-weight: 700; padding: 4px 10px; border-radius: 999px; background: var(--green-050); color: var(--green-600); }

/* BUTTONS */
.btn {
  border: 0; cursor: pointer; font-weight: 700; font-size: 15px;
  padding: 12px 20px; border-radius: 12px; transition: .15s;
  background: var(--green); color: #fff;
}
.btn:hover { background: var(--green-600); transform: translateY(-1px); }
.btn.ghost { background: #fff; color: var(--ink); border: 1px solid var(--line); }
.btn.ghost:hover { background: #f8fafc; }
.btn.sm { padding: 8px 14px; font-size: 13px; border-radius: 10px; }
.btn.block { width: 100%; }
.btn.danger { background: var(--red); }

/* HERO */
.hero {
  background: radial-gradient(1200px 400px at 80% -10%, #d1fae5 0, transparent 60%),
              linear-gradient(180deg, #ffffff, var(--bg));
  padding: 56px 0 30px;
}
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 34px; align-items: center; }
.hero h1 { font-size: 44px; line-height: 1.1; letter-spacing: -1px; }
.hero h1 em { color: var(--green); font-style: normal; }
.hero p.lead { color: var(--muted); font-size: 18px; margin: 16px 0 22px; }
.hero .cta-row { display: flex; gap: 12px; flex-wrap: wrap; }
.badges { display: flex; gap: 18px; margin-top: 26px; flex-wrap: wrap; }
.badge { font-size: 13px; color: var(--muted); display: flex; gap: 7px; align-items: center; }
.badge b { color: var(--ink); }

/* CARDS */
.card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow); padding: 24px;
}
.card h3 { font-size: 18px; margin-bottom: 4px; }
.card .sub { color: var(--muted); font-size: 14px; margin-bottom: 16px; }
.grid { display: grid; gap: 20px; }
.grid.cols-2 { grid-template-columns: 1fr 1fr; }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }

/* FORM */
label.field { display: block; margin-bottom: 14px; }
label.field .lab { font-size: 13px; font-weight: 700; color: var(--muted); margin-bottom: 6px; display: block; }
input, select {
  width: 100%; padding: 12px 14px; border: 1px solid var(--line);
  border-radius: 12px; font-size: 15px; background: #fff; color: var(--ink);
}
input:focus, select:focus { outline: 2px solid var(--green-050); border-color: var(--green); }
.row { display: flex; gap: 12px; }
.row > * { flex: 1; }

.segmented { display: flex; background: #f1f5f9; border-radius: 12px; padding: 4px; }
.segmented button {
  flex: 1; border: 0; background: transparent; padding: 10px; border-radius: 9px;
  font-weight: 700; color: var(--muted); cursor: pointer;
}
.segmented button.on { background: #fff; color: var(--green-600); box-shadow: 0 1px 4px rgba(0,0,0,.08); }

/* RESULTS / RING */
.result-empty { color: var(--muted); text-align: center; padding: 40px 10px; }
.kcal-big { font-size: 46px; font-weight: 800; color: var(--green-600); }
.kcal-big small { font-size: 16px; color: var(--muted); font-weight: 600; }
.stat-row { display: flex; justify-content: space-between; padding: 10px 0; border-top: 1px dashed var(--line); }
.stat-row span { color: var(--muted); }
.stat-row b { font-variant-numeric: tabular-nums; }

.ring-wrap { display: flex; align-items: center; gap: 22px; }
.ring { --p: 0; --c: var(--green); width: 150px; height: 150px; border-radius: 50%;
  background: conic-gradient(var(--c) calc(var(--p) * 1%), #eef2f7 0);
  display: grid; place-items: center; flex: none; }
.ring .inner { width: 116px; height: 116px; background: #fff; border-radius: 50%; display: grid; place-items: center; text-align: center; }
.ring .inner .pct { font-size: 30px; font-weight: 800; }
.ring .inner .cap { font-size: 12px; color: var(--muted); }

.macro { margin: 10px 0; }
.macro .top { display: flex; justify-content: space-between; font-size: 13px; margin-bottom: 5px; }
.macro .bar { height: 9px; background: #eef2f7; border-radius: 999px; overflow: hidden; }
.macro .bar i { display: block; height: 100%; border-radius: 999px; }
.macro.p .bar i { background: #6366f1; }
.macro.f .bar i { background: var(--amber); }
.macro.c .bar i { background: var(--teal); }

/* LISTS / TABLES */
.list { display: flex; flex-direction: column; gap: 8px; }
.item { display: flex; align-items: center; gap: 12px; padding: 12px 14px; border: 1px solid var(--line); border-radius: 12px; }
.item .name { font-weight: 700; }
.item .meta { color: var(--muted); font-size: 13px; }
.item .right { margin-left: auto; font-weight: 700; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--line); font-size: 14px; }
th { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .4px; }

.pill { font-size: 12px; font-weight: 700; padding: 3px 10px; border-radius: 999px; }
.pill.OK { background: var(--green-050); color: var(--green-600); }
.pill.WARN { background: #fef3c7; color: #b45309; }
.pill.LIMIT { background: #fee2e2; color: var(--red); }
.pill.role { background: #eef2ff; color: #4338ca; }

/* SECTION HELPERS */
.view { display: none; padding: 34px 0 70px; }
.view.active { display: block; }
.section-title { font-size: 26px; font-weight: 800; margin-bottom: 4px; }
.section-sub { color: var(--muted); margin-bottom: 22px; }
.hidden { display: none !important; }

/* TABS */
.tabs { display: flex; gap: 6px; background: #f1f5f9; padding: 5px; border-radius: 12px; margin-bottom: 18px; }
.tabs button { flex: 1; border: 0; background: transparent; padding: 11px; border-radius: 9px; font-weight: 700; color: var(--muted); cursor: pointer; }
.tabs button.on { background: #fff; color: var(--green-600); box-shadow: 0 1px 4px rgba(0,0,0,.08); }

/* TOAST */
#toasts { position: fixed; right: 18px; bottom: 18px; display: flex; flex-direction: column; gap: 10px; z-index: 100; }
.toast { background: var(--ink); color: #fff; padding: 12px 16px; border-radius: 12px; box-shadow: var(--shadow); font-weight: 600; font-size: 14px; max-width: 320px; }
.toast.good { background: var(--green-600); }
.toast.bad { background: var(--red); }
.toast.warn { background: #b45309; }

/* FOOTER */
.footer { border-top: 1px solid var(--line); padding: 26px 0; color: var(--muted); font-size: 14px; text-align: center; }

@media (max-width: 880px) {
  .hero-grid { grid-template-columns: 1fr; }
  .grid.cols-2, .grid.cols-3 { grid-template-columns: 1fr; }
  .hero h1 { font-size: 34px; }
  .nav-links { display: none; }
}

/* ================= Chatbot widget ================= */
.chat-fab {
  position: fixed; right: 22px; bottom: 22px; z-index: 60;
  width: 58px; height: 58px; border-radius: 50%; border: none;
  background: var(--green); color: #fff; font-size: 26px; cursor: pointer;
  box-shadow: var(--shadow); transition: transform .15s ease, background .15s ease;
}
.chat-fab:hover { background: var(--green-600); transform: translateY(-2px); }

.chat-panel {
  position: fixed; right: 22px; bottom: 92px; z-index: 60;
  width: 360px; max-width: calc(100vw - 32px); height: 520px; max-height: calc(100vh - 130px);
  display: flex; flex-direction: column;
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden;
}
.chat-panel.hidden { display: none; }

.chat-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 16px; background: var(--green); color: #fff; font-weight: 600;
}
.chat-close { background: none; border: none; color: #fff; font-size: 22px; cursor: pointer; line-height: 1; }

.chat-body { flex: 1; overflow-y: auto; padding: 14px; display: flex; flex-direction: column; gap: 10px; }
.chat-msg { max-width: 82%; padding: 9px 13px; border-radius: 14px; font-size: 14px; white-space: pre-wrap; word-wrap: break-word; }
.chat-msg.bot { align-self: flex-start; background: var(--green-050); color: var(--ink); border-bottom-left-radius: 4px; }
.chat-msg.user { align-self: flex-end; background: var(--green); color: #fff; border-bottom-right-radius: 4px; }
.chat-msg.typing { opacity: .6; font-style: italic; }
.chat-msg.error { align-self: center; background: var(--red, #dc2626); color: #fff; font-size: 13px; }
.tg-fab { position: fixed; left: 20px; bottom: 20px; background: #229ED9; color: #fff; padding: 10px 15px; border-radius: 24px; text-decoration: none; font-size: 14px; font-weight: 600; box-shadow: 0 4px 14px rgba(0,0,0,.18); z-index: 50; }
.tg-fab:hover { background: #1b8ac0; }

/* ---------- Dark mode ---------- */
:root[data-theme="dark"] {
  --ink: #e5e9f0;
  --muted: #93a1b5;
  --line: #2a3441;
  --bg: #0f1620;
  --card: #1a2330;
  --green-050: #16311f;
  --shadow: 0 10px 30px rgba(0,0,0,.45);
}
:root[data-theme="dark"] body { background: var(--bg); }
:root[data-theme="dark"] .nav { background: rgba(26,35,48,.9); }
:root[data-theme="dark"] .btn.ghost { background: var(--card); color: var(--ink); }
:root[data-theme="dark"] .btn.ghost:hover { background: #222d3c; }
:root[data-theme="dark"] .hero { background: radial-gradient(1200px 400px at 80% -10%, #14321f 0, transparent 60%), linear-gradient(180deg, #16202c, var(--bg)); }
:root[data-theme="dark"] input,
:root[data-theme="dark"] select,
:root[data-theme="dark"] textarea { background: var(--card); color: var(--ink); border-color: var(--line); }
:root[data-theme="dark"] .chat-msg.bot { background: #16311f; color: var(--ink); }
.theme-btn { background: none; border: 1px solid var(--line); border-radius: 10px; cursor: pointer; font-size: 15px; padding: 6px 10px; }
.grid.cols-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
@media (max-width: 900px) { .grid.cols-3 { grid-template-columns: 1fr; } }
.media-card { overflow: hidden; cursor: pointer; padding: 0; transition: transform .12s ease, box-shadow .12s ease; }
.media-card:hover { transform: translateY(-3px); box-shadow: 0 16px 40px rgba(15,23,42,.14); }
.media-card .thumb { height: 160px; background-size: cover; background-position: center; }
.media-card .body { padding: 16px 18px 20px; }
.media-card h3 { margin: 0 0 6px; }
.chip.tag { background: var(--green-050); color: var(--green-600); }
.modal { position: fixed; inset: 0; background: rgba(15,23,42,.55); display: flex; align-items: center; justify-content: center; z-index: 100; padding: 20px; }
.modal.hidden { display: none; }
.modal-box { background: var(--card); color: var(--ink); border-radius: 16px; max-width: 640px; width: 100%; max-height: 88vh; overflow-y: auto; position: relative; box-shadow: var(--shadow); }
.modal-img { height: 220px; background-size: cover; background-position: center; border-radius: 16px 16px 0 0; }
.modal-body { padding: 22px 24px 26px; line-height: 1.65; }
.modal-body h2 { margin: 0 0 8px; }
.modal-body ul { padding-left: 20px; }
.modal-close { position: absolute; top: 12px; right: 14px; z-index: 2; background: rgba(0,0,0,.5); color: #fff; border: none; width: 34px; height: 34px; border-radius: 50%; font-size: 20px; cursor: pointer; }

.chat-input { display: flex; gap: 8px; padding: 12px; border-top: 1px solid var(--line); }
.chat-input input { flex: 1; padding: 10px 12px; border: 1px solid var(--line); border-radius: 12px; font-size: 14px; outline: none; }
.chat-input input:focus { border-color: var(--green); }