/* === Reset / base === */
* { box-sizing: border-box; }
:root {
  --bg: #061a1d;
  --bg2: #081f22;
  --card: #0e262a;
  --muted: #7ab9b6;
  --text: #e8f3f2;
  --accent: #54d2c3;
  --accent-2: #19b6a6;
  --shadow: 0 10px 30px rgba(0,0,0,.35);
  --radius: 20px;

  /* Background gradient colors */
  --bg-radial: #0d383c;
  --bg-grad-top: #031013;
  --bg-grad-bottom: #071c1f;

  /* Surfaces, borders, inputs */
  --card-grad-top: #0c2326;
  --card-grad-bottom: #0a1f22;
  --input-bg: #0a1e21;
  --border: rgba(255,255,255,.06);
  --avatar-bg: #0b2326;

  /* Chart */
  --chart-line: #54d2c3;
  --chart-fill: rgba(84,210,195,.2);
  --chart-grid: rgba(255,255,255,.06);
  --chart-tick: #7ab9b6;
  --chart-line-2: #8ab5ff;
  --chart-fill-2: rgba(138,181,255,.18);

  /* Primary (blue) */
  --primary-1: #3b82f6;
  --primary-2: #2563eb;
}
html, body { height: 100%; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, 'Helvetica Neue', Arial;
  color: var(--text);
  background: radial-gradient(1200px 800px at 10% -10%, var(--bg-radial), transparent),
              linear-gradient(180deg, var(--bg-grad-top), var(--bg-grad-bottom));
  background-color: var(--bg);
}

/* === Layout === */
#app { min-height: calc(100vh - 48px); padding: 24px; }
.view { display: none; }
.view.active { display: block; }
.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(280px, 1fr));
  gap: 18px;
}
.card {
  position: relative;
  background: linear-gradient(180deg, var(--card-grad-top), var(--card-grad-bottom));
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}
.card h2 { margin: 0 0 14px; letter-spacing: 0.02em; }
.card h3 { margin: 6px 0 10px; color: var(--muted); font-weight: 600; }

.span-2 { grid-column: span 2; }

/* === Topbar === */
.topbar { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.user .name { font-weight: 700; }
.spacer { flex: 1; }

/* === Forms === */
label { display: grid; gap: 6px; font-size: 14px; color: var(--muted); }
input {
  background: var(--input-bg); color: var(--text);
  border: 1px solid var(--border);
  border-radius: 14px; padding: 12px 14px;
  outline: none;
}
input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(84,210,195,.15); }

.row { display: flex; align-items: center; gap: 12px; }
.wrap { flex-wrap: wrap; }
.grow { flex: 1; }
.gap { gap: 10px; }

.btn {
  border-radius: 9999px; padding: 12px 18px;
  background: #102c2f; border: 1px solid var(--border);
  color: var(--text); cursor: pointer;
}
.btn.primary { background: linear-gradient(180deg, var(--primary-1), var(--primary-2)); border: none; color: #fff; font-weight: 800; letter-spacing: .02em; }
.btn.ghost { background: transparent; }
.btn.link { background: transparent; color: var(--accent); }

/* === Login === */
.login-card { max-width: 540px; margin: 10px auto; }
.app-title { font-size: 36px; text-align: center; margin: 0 0 6px; letter-spacing: .04em; }
.subtitle { text-align: center; color: var(--muted); margin-top: 0; }

/* === Compare === */
.compare { display: flex; align-items: center; justify-content: space-between; }
.person { display: flex; align-items: center; gap: 14px; }
.avatar { width: 64px; height: 64px; border-radius: 50%; background: var(--avatar-bg); border: 1px solid var(--border); }
.metric .delta { font-size: 28px; font-weight: 800; color: var(--accent); }
.metric .label { color: var(--muted); margin-top: 2px; }
.vs { color: var(--muted); font-weight: 800; letter-spacing: .1em; }

/* === Measurements === */
.measurements { display: grid; grid-template-columns: 1.2fr .8fr; gap: 18px; }
.measure-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; align-items: end; }
.measure-grid button { grid-column: span 4; }
.meas-history { overflow: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
thead th { text-align: left; color: var(--muted); font-weight: 600; }
tbody td, thead th { padding: 8px 6px; border-bottom: 1px solid rgba(255,255,255,.06); }

/* === Journal === */
.journal-list { list-style: none; margin: 10px 0 0; padding: 0; display: grid; gap: 8px; }
.journal-item {
  display: grid; grid-template-columns: 90px 1fr 120px; gap: 10px;
  background: #0a1e21; padding: 12px 14px; border-radius: 16px;
  border: 1px solid var(--border);
}
.journal-item .activity { font-weight: 600; }
.journal-item .note { color: var(--muted); }

/* === Footer === */
.footer { height: 48px; display: flex; align-items: center; justify-content: center; color: var(--muted); }

/* === Chart sizing fix === */
.chart-area { position: relative; height: 280px; width: 100%; }
#weightChart { width: 100% !important; height: 100% !important; display: block; }

/* === Responsive (desktop → mobile) === */
@media (max-width: 960px) {
  .grid { grid-template-columns: 1fr; }
  .span-2 { grid-column: span 1; }
  .measurements { grid-template-columns: 1fr; }
  .measure-grid { grid-template-columns: repeat(2, 1fr); }
  .journal-item { grid-template-columns: 1fr; }
}

/* ===== Mobile layout polish ===== */
:root { --safe-bottom: env(safe-area-inset-bottom, 0px); --safe-top: env(safe-area-inset-top, 0px); }
.topbar { position: sticky; top: 0; z-index: 10; backdrop-filter: blur(6px); background: linear-gradient(180deg, rgba(0,0,0,.28), transparent); padding-top: calc(8px + var(--safe-top)); }
:root[data-theme="light"] .topbar { background: linear-gradient(180deg, rgba(255,255,255,.75), rgba(255,255,255,.35)); }

/* Bigger tap targets on mobile */
@media (max-width: 768px) {
  .btn { padding: 14px 18px; }
  input { padding: 14px 16px; }
  .app-title { font-size: 30px; }
}

/* Mobile grid becomes single-column with spacing */
@media (max-width: 768px) {
  .grid { display: block; }
  .card { margin-bottom: 14px; }
  .span-2 { grid-column: auto; }
  .chart-area { height: 240px; }
}

/* Bottom tab bar */
.mobile-tabbar {
  position: sticky; bottom: 0; left: 0; right: 0;
  display: none; /* only show on mobile */
  justify-content: space-between; align-items: stretch;
  gap: 4px; padding: 6px 8px calc(6px + var(--safe-bottom));
  background: rgba(0,0,0,.35); backdrop-filter: blur(10px);
  border-top: 1px solid var(--border);
}
:root[data-theme="light"] .mobile-tabbar { background: rgba(255,255,255,.85); }
@media (max-width: 768px) {
  .mobile-tabbar { display: flex; }
  body { padding-bottom: calc(56px + var(--safe-bottom)); }
}
.mobile-tabbar .tabbtn {
  flex: 1 1 0; display: grid; place-items: center; gap: 3px;
  border-radius: 12px; padding: 8px 6px; border: 1px solid transparent;
  background: transparent; color: var(--text); font-size: 12px; line-height: 1.1;
}
.mobile-tabbar .tabbtn.active { background: linear-gradient(180deg, var(--primary-1), var(--primary-2)); color: #fff; }
.mobile-tabbar .tabbtn .ico { width: 20px; height: 20px; display: block; }

/* Card visibility when in mobile tab mode */
@media (max-width: 768px) {
  .card[data-group] { display: none; }
  .card[data-group].visible { display: block; }
}

/* Forms stack better on mobile */
@media (max-width: 768px) {
  .measure-grid { grid-template-columns: 1fr 1fr; }
  .row.wrap > label { min-width: calc(50% - 12px); }
  .journal-item { grid-template-columns: 1fr; }
}

/* Table usability on small screens */
@media (max-width: 480px) {
  table { font-size: 13px; }
  .btn.xs { padding: 8px 10px; }
}

/* === Light theme === */
:root[data-theme="light"] {
  --bg: #f6fbfa;
  --bg2: #f2f8f7;
  --card: #ffffff;
  --muted: #456a66;
  --text: #0c1d1b;
  --accent: #19b6a6;
  --accent-2: #139e8f;
  --shadow: 0 10px 30px rgba(0,0,0,.10);

  /* Background gradients */
  --bg-radial: #dff5f1;
  --bg-grad-top: #f7fbfb;
  --bg-grad-bottom: #eef5f4;

  /* Surfaces */
  --card-grad-top: #ffffff;
  --card-grad-bottom: #f7fbfb;
  --input-bg: #ffffff;
  --border: rgba(0,0,0,.08);
  --avatar-bg: #eef6f5;

  /* Chart */
  --chart-line: #0f9587;
  --chart-fill: rgba(15,149,135,.18);
  --chart-grid: rgba(0,0,0,.08);
  --chart-tick: #35524f;

  --chart-line-2: #3b6eea;
  --chart-fill-2: rgba(59,110,234,.15);

  /* Keep blue buttons in light */
  --primary-1: #3b82f6;
  --primary-2: #2563eb;

  color-scheme: light;
}
:root[data-theme="dark"] { color-scheme: dark; }

/* Avatar image */
.avatar-img { width: 96px; height: 96px; border-radius: 9999px; border: 2px solid rgba(255,255,255,.12); object-fit: cover; }

/* Profile layout */
.profile-box { display: grid; grid-template-columns: 140px 1fr; gap: 16px; align-items: start; }
.profile-left form { display: grid; gap: 8px; }
.profile-right { display: grid; gap: 12px; }

/* Light mode button contrast tweaks */
:root[data-theme="light"] .btn { border-color: rgba(0,0,0,.08); background: #f4fbfa; }
:root[data-theme="light"] .btn.ghost,
:root[data-theme="light"] .btn.link { background: transparent; }
:root[data-theme="light"] .btn.primary { background: linear-gradient(180deg, var(--primary-1), var(--primary-2)); border: none; color: #fff; font-weight: 800; letter-spacing: .02em; }

/* Cards and inputs shadows in light */
:root[data-theme="light"] .card { box-shadow: 0 10px 24px rgba(0,0,0,.06); }
:root[data-theme="light"] input { box-shadow: inset 0 1px 2px rgba(0,0,0,.04); }

/* Chart controls */
.chart-controls { display:flex; gap:8px; justify-content:flex-end; margin-bottom:8px; }
.btn.toggle { background: transparent; border: 1px solid var(--border); padding: 8px 12px; }
.btn.toggle.active { background: linear-gradient(180deg, var(--primary-1), var(--primary-2)); border:none; color:#fff; }

/* Table action buttons */
.table-actions { display:flex; gap:6px; }
.btn.xs { padding: 6px 10px; border-radius: 12px; font-size: 12px; }
.btn.danger { background:#b91c1c; border-color:#7f1d1d; color:#fff; }
:root[data-theme="light"] .btn.danger { background:#dc2626; border-color:#991b1b; color:#fff; }

/* === Overlay / modal (desktop profil) === */
.overlay {
  position: fixed; inset: 0; z-index: 1000;
  background: rgba(0,0,0,.45);
  backdrop-filter: blur(2px);
}
#profile-card.popup {
  position: fixed; z-index: 1001;
  top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: min(720px, 90vw);
  max-height: 85vh; overflow: auto;
}
.close-btn { position: absolute; top: 10px; right: 10px; }

/* ====== MOBILE FIX PACK ====== */

/* 1) Zero poziomego przewijania + bezpieczne odstępy */
html, body { overflow-x: hidden; }
@media (max-width: 768px) {
  #app { padding: 12px 12px calc(72px + var(--safe-bottom)); } /* więcej miejsca na tabbar */
  .card { padding: 16px; max-width: 100%; }
  input, .btn { max-width: 100%; }
}

/* 2) Waga – niech formularz ładnie się zawija i guziki nie „wychodzą” */
@media (max-width: 768px) {
  #weight-form { row-gap: 10px; }
  #weight-form > label { flex: 1 1 100%; min-width: 100%; }
  #weight-form .btn.primary { width: 100%; }
  .chart-controls { justify-content: flex-start; flex-wrap: wrap; gap: 8px; }
  .chart-area { height: 220px; }
}

/* 3) Pomiary – grid na jedną kolumnę na bardzo wąskich ekranach, przycisk full width */
@media (max-width: 480px) {
  .measure-grid { grid-template-columns: 1fr; }
  .measure-grid button { width: 100%; }
}

/* 4) Dziennik – formularz w jednej kolumnie, przycisk full width */
@media (max-width: 768px) {
  #journal-form { row-gap: 10px; }
  #journal-form > label { flex: 1 1 100%; min-width: 100%; }
  #journal-form .btn.primary { width: 100%; }
}

/* 5) START – pionowy układ: zdjęcie u góry, waga pod nim */
@media (max-width: 540px) {
  .compare { gap: 14px; justify-content: space-around; }
  .person { flex-direction: column; align-items: center; gap: 8px; }
  .avatar { width: 72px; height: 72px; }
  .metric .delta { font-size: 26px; }
  .vs { align-self: center; order: 0; }
}

/* 6) Tabbar – niech nie przepycha kontentu i zawsze mieści się w szerokości */
.mobile-tabbar { left: 0; right: 0; }
@media (max-width: 768px) {
  .mobile-tabbar { position: fixed; bottom: 0; }
  body { padding-bottom: calc(64px + var(--safe-bottom)); } /* wysokość tabbaru */
}

/* 7) Drobne: przyciski przełącznika wykresu mniejsze na mobile */
@media (max-width: 480px) {
  .btn.toggle { padding: 8px 10px; }
}

/* ====== FIX: Pomiary i Profil (mobile/małe szerokości) ====== */

/* 0) Bez poziomego przewijania i elementów wychodzących poza kartę */
html, body { overflow-x: hidden; }
.card { max-width: 100%; }
.card * { min-width: 0; } /* zapobiega „rozpychaniu” przez inputy */

/* 1) POMIARY – przycisk nie może „wychodzić” poza grid */
.measure-grid { grid-auto-rows: auto; }
.measure-grid button { grid-column: 1 / -1; }            /* Zamiast span:4 – zawsze przez całą szerokość */
.measure-grid label { min-width: 0; }                    /* inputy nie rozszerzą kolumn */
@media (max-width: 768px) {
  .measure-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 540px) {
  .measure-grid { grid-template-columns: 1fr; }
  .measure-grid button { width: 100%; }
}

/* 2) PROFIL – siatka na jedną kolumnę na wąskich ekranach + wrap wierszy */
#profile-card .profile-box { grid-template-columns: 140px 1fr; }
@media (max-width: 720px) {
  #profile-card .profile-box { grid-template-columns: 1fr; }
}

/* Formularze w profilu – niech się zawijają i nie wystają */
#profile-card .row { flex-wrap: wrap; gap: 10px; }
#profile-card .row .grow { min-width: 100%; }
#profile-card .row .btn { min-width: 140px; }
@media (max-width: 540px) {
  #profile-card .row .btn { width: 100%; }              /* „Zapisz” pod polem – pełna szerokość */
}

/* Plik w profilu – niech nie rozpycha karty */
#profile-card input[type="file"] { max-width: 100%; }

/* 3) START – pionowy układ (avatar u góry, waga pod nim) bez ścisku */
@media (max-width: 560px) {
  .compare { gap: 14px; justify-content: space-around; }
  .person { flex-direction: column; align-items: center; gap: 8px; }
  .avatar { width: 72px; height: 72px; }
  .metric .delta { font-size: 26px; }
  .vs { order: 0; align-self: center; }
}

/* 4) Przycisk „Zapisz pomiary / Zmień zdjęcie / Dodaj wpis” – 100% na mobile */
@media (max-width: 768px) {
  #journal-form .btn.primary,
  #weight-form .btn.primary,
  .measure-grid button.btn.primary,
  #profile-card #avatar-form .btn.primary { width: 100%; }
}

/* 5) Tabbar na stałe przy dole i bez wypychania treści */
@media (max-width: 768px) {
  .mobile-tabbar { position: fixed; left: 0; right: 0; bottom: 0; }
  body { padding-bottom: calc(64px + var(--safe-bottom)); }
}

/* ===== Dziennik: jasny motyw + układ akcji ===== */
.journal-item { background: var(--input-bg); } /* zamiast stałego #0a1e21 */
.journal-item .duration { display: flex; align-items: center; justify-content: flex-end; gap: 8px; }
.journal-item .duration .meta { white-space: nowrap; }

/* Podsumowanie nad listą */
.journal-summary { display: flex; flex-wrap: wrap; gap: 8px; margin: 10px 0 0; }
.journal-summary .chip {
  background: linear-gradient(180deg, var(--primary-1), var(--primary-2));
  color: #fff; border-radius: 9999px; padding: 6px 10px; font-weight: 700; font-size: 13px;
}
:root[data-theme="light"] .journal-summary .chip { box-shadow: 0 2px 8px rgba(0,0,0,.08); }

/* Na bardzo wąskich ekranach – guzik pod metą */
@media (max-width: 480px) {
  .journal-item { gap: 8px; }
  .journal-item .duration { justify-content: space-between; }
}