/* ── Reset & base ─────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0f0f0f;
  --surface: #1c1c1c;
  --surface2: #272727;
  --accent: #FF6B00;
  --accent-dim: #cc5500;
  --accent-bg: rgba(255, 107, 0, 0.1);
  --text: #f0f0f0;
  --text-muted: #777;
  --danger: #ff5c5c;
  --radius: 12px;
  --font: 'DM Mono', 'Courier New', monospace;
}

html, body {
  height: 100%;
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  overscroll-behavior: none;
  -webkit-tap-highlight-color: transparent;
}

#app {
  height: 100%;
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
  position: relative;
}

/* ── Loading screen ───────────────────────────────────── */
#loading-screen {
  position: fixed;
  inset: 0;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  z-index: 999;
  transition: opacity 0.5s ease;
}

#loading-screen.fade-out { opacity: 0; pointer-events: none; }
#loading-screen.hidden { display: none; }

#loading-canvas { width: 40vw; height: 40vw; max-width: 200px; max-height: 200px; }

#loading-title {
  font-size: clamp(18px, 5vw, 26px);
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.05em;
}

#loading-sub { font-size: clamp(10px, 2.5vw, 12px); color: #444; letter-spacing: 0.05em; }

/* ── Screens ──────────────────────────────────────────── */
.screen {
  display: none;
  flex-direction: column;
  height: 100%;
  padding-top: env(safe-area-inset-top);
  padding-left: env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
}

.screen.active { display: flex; }

/* ── Screen header (non-home) ─────────────────────────── */
.screen-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border-bottom: 1px solid #222;
  flex-shrink: 0;
}

.screen-back {
  background: none;
  border: none;
  color: var(--accent);
  font-size: 22px;
  cursor: pointer;
  padding: 0 4px;
  line-height: 1;
}

.screen-title {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.03em;
}

.screen-body {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  padding-bottom: calc(env(safe-area-inset-bottom) + 24px);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* ── Home screen ──────────────────────────────────────── */
#screen-home {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  padding-bottom: env(safe-area-inset-bottom);
}

#screen-home.active { display: flex; }

.home-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 40px;
  gap: 8px;
}

#home-canvas { width: 80px; height: 80px; }

.home-title {
  font-size: 24px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.04em;
}

.home-sub { font-size: 11px; color: #444; letter-spacing: 0.05em; }

.home-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px 20px;
  gap: 16px;
}

.home-next-card {
  width: 100%;
  background: var(--surface);
  border: 2px solid var(--accent);
  border-radius: 16px;
  padding: 28px 24px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: background 0.15s;
}

.home-next-card:active { background: var(--surface2); }

.home-next-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
}

.home-next-name {
  font-size: 22px;
  font-weight: 600;
  color: var(--accent);
}

.home-next-meta { font-size: 13px; color: var(--text-muted); }

.home-next-cta {
  margin-top: 12px;
  background: var(--accent);
  color: #111;
  border: none;
  border-radius: var(--radius);
  font-family: var(--font);
  font-size: 15px;
  font-weight: 600;
  padding: 14px;
  width: 100%;
  cursor: pointer;
  letter-spacing: 0.04em;
}

.home-resume-card {
  width: 100%;
  background: var(--accent-bg);
  border: 2px solid var(--accent);
  border-radius: 16px;
  padding: 24px;
  cursor: pointer;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.home-resume-label { font-size: 12px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.1em; }
.home-resume-name  { font-size: 20px; font-weight: 600; color: var(--accent); }
.home-resume-cta   { font-size: 14px; color: var(--text-muted); }

.home-other-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-family: var(--font);
  font-size: 13px;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 3px;
  padding: 4px;
}

.home-empty { color: var(--text-muted); font-size: 14px; text-align: center; }

.home-footer {
  display: flex;
  gap: 12px;
  padding: 16px 20px;
  border-top: 1px solid #222;
}

.home-footer-btn {
  flex: 1;
  background: var(--surface);
  border: 1px solid #333;
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  padding: 14px;
  cursor: pointer;
  transition: border-color 0.15s;
}

.home-footer-btn:active { border-color: var(--accent); }


/* ── Shared inputs ────────────────────────────────────── */
input[type="text"],
input[type="date"],
input[type="number"] {
  width: 100%;
  background: var(--surface2);
  border: 1px solid #333;
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  padding: 10px 12px;
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

input:focus { border-color: var(--accent); }

/* ── Buttons ──────────────────────────────────────────── */
.btn-primary {
  background: var(--accent);
  color: #111;
  border: none;
  border-radius: var(--radius);
  font-family: var(--font);
  font-size: 14px;
  font-weight: 600;
  padding: 12px 20px;
  cursor: pointer;
  transition: background 0.15s;
}

.btn-primary:active { background: var(--accent-dim); }

.btn-secondary {
  background: var(--surface2);
  color: var(--text);
  border: 1px solid #333;
  border-radius: var(--radius);
  font-family: var(--font);
  font-size: 13px;
  padding: 10px 16px;
  cursor: pointer;
  text-align: center;
  display: inline-block;
  transition: border-color 0.15s;
}

.btn-secondary:active { border-color: var(--accent); }

.btn-danger {
  background: none;
  color: var(--danger);
  border: 1px solid var(--danger);
  border-radius: var(--radius);
  font-family: var(--font);
  font-size: 12px;
  padding: 6px 10px;
  cursor: pointer;
}

.btn-full { width: 100%; }
.btn-sm { font-size: 12px; padding: 6px 10px; }
.back-btn { margin-bottom: 4px; }

/* ── Misc ─────────────────────────────────────────────── */
.section-title {
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding-bottom: 4px;
  border-bottom: 1px solid #222;
}

.empty-msg { color: var(--text-muted); font-size: 14px; text-align: center; padding: 20px 0; }

/* ── Programme selection ──────────────────────────────── */
.programme-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 16px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 4px;
  transition: background 0.15s;
  border: 1px solid transparent;
}

.programme-card:active { border-color: var(--accent); }
.programme-name { font-size: 16px; font-weight: 600; color: var(--accent); }
.programme-meta { font-size: 12px; color: var(--text-muted); }

.programme-card--next { border: 1px solid var(--accent); }

.programme-card--done { opacity: 0.4; cursor: default; }

/* ── Live session ─────────────────────────────────────── */
.live-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.live-title { font-size: 17px; font-weight: 600; color: var(--accent); }
.live-date  { font-size: 12px; color: var(--text-muted); margin-top: 2px; }

.live-exercise {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.live-exercise-name { font-size: 14px; font-weight: 600; transition: opacity 0.2s; }
.live-exercise-name--done { text-decoration: line-through; opacity: 0.4; }
.live-exercise-muscle { font-size: 12px; color: var(--accent); margin-top: 1px; }
.live-exercise-comment { font-size: 12px; color: var(--text-muted); margin-top: 4px; font-style: italic; padding: 4px 6px; background: rgba(255,255,255,0.04); border-left: 2px solid var(--accent); border-radius: 2px; }

.live-series-labels {
  display: grid;
  grid-template-columns: 32px 18px 1fr auto 1fr auto 48px;
  gap: 4px;
  font-size: 10px;
  color: var(--text-muted);
  text-align: center;
}

.live-series-row {
  display: grid;
  grid-template-columns: 32px 18px 1fr auto 1fr auto 48px;
  gap: 4px;
  align-items: center;
  border-radius: 8px;
  padding: 4px 2px;
  transition: background 0.15s;
}

.live-series-row.active { background: var(--accent-bg); }
.live-series-row.done   { opacity: 0.45; }

.series-state-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 2px solid var(--text-muted);
  background: none;
  color: var(--text-muted);
  font-size: 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
  flex-shrink: 0;
}

.live-series-row.active .series-state-btn { border-color: var(--accent); color: var(--accent); }
.live-series-row.done   .series-state-btn { border-color: var(--accent); background: var(--accent); color: #111; }

.series-num { text-align: center; font-size: 12px; color: var(--text-muted); }

.live-series-row input[type="number"] { padding: 8px 4px; text-align: center; font-size: 15px; }

.live-x, .live-kg { font-size: 12px; color: var(--text-muted); text-align: center; }

.live-rest { font-size: 13px; text-align: center; padding: 6px 2px; color: var(--text-muted); }

/* ── Countdown fullscreen ─────────────────────────────── */
#countdown-bar {
  position: fixed;
  inset: 0;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
  z-index: 200;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}

#countdown-bar.hidden { display: none; }

.countdown-label {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.15em;
}

.countdown-ring-wrap {
  position: relative;
  width: 220px;
  height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.countdown-ring {
  position: absolute;
  inset: 0;
  transform: rotate(-90deg);
}

.ring-bg {
  fill: none;
  stroke: #222;
  stroke-width: 8;
}

.ring-progress {
  fill: none;
  stroke: var(--accent);
  stroke-width: 8;
  stroke-linecap: round;
  stroke-dasharray: 534;
  stroke-dashoffset: 0;
  transition: stroke-dashoffset 0.9s linear, stroke 0.3s ease;
}

#countdown-bar.urgent .ring-progress { stroke: var(--danger); }

#countdown-display {
  font-size: 52px;
  font-weight: 600;
  color: var(--accent);
  line-height: 1;
  transition: color 0.3s;
  z-index: 1;
}

#countdown-bar.urgent #countdown-display { color: var(--danger); }

@keyframes tick-pulse {
  0%   { transform: scale(1); }
  40%  { transform: scale(1.12); }
  100% { transform: scale(1); }
}

#countdown-display.pulse { animation: tick-pulse 0.35s ease-out; }

#countdown-skip {
  background: none;
  border: 1px solid #333;
  color: var(--text-muted);
  font-family: var(--font);
  font-size: 14px;
  padding: 12px 36px;
  border-radius: var(--radius);
  cursor: pointer;
}

/* ── Toast ────────────────────────────────────────────── */
#toast {
  position: fixed;
  bottom: calc(env(safe-area-inset-bottom) + 72px);
  left: 50%;
  transform: translateX(-50%);
  background: #1e1e1e;
  border: 1px solid #333;
  color: var(--accent);
  font-size: 15px;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: 24px;
  z-index: 300;
  white-space: nowrap;
  pointer-events: none;
}

#toast.hidden { display: none; }

@keyframes toast-in  { from { opacity: 0; transform: translateX(-50%) translateY(12px); } to { opacity: 1; transform: translateX(-50%) translateY(0); } }
@keyframes toast-out { from { opacity: 1; transform: translateX(-50%) translateY(0); }  to { opacity: 0; transform: translateX(-50%) translateY(12px); } }

#toast.toast-show { animation: toast-in  0.25s ease-out forwards; }
#toast.toast-hide { animation: toast-out 0.35s ease-in  forwards; }

/* ── Historique ───────────────────────────────────────── */
.session-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 14px;
  cursor: pointer;
  transition: background 0.15s;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.session-card:active { background: var(--surface2); }

.session-card-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 8px; }
.session-name  { font-size: 15px; font-weight: 600; color: var(--accent); }
.session-date  { font-size: 12px; color: var(--text-muted); white-space: nowrap; }
.session-meta  { font-size: 12px; color: var(--text-muted); }

/* ── Paramètres ───────────────────────────────────────── */
.param-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  background: var(--surface);
  border-radius: var(--radius);
  padding: 12px 14px;
}

.param-row-order { display: flex; flex-direction: column; gap: 2px; }

.btn-order {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 14px;
  cursor: pointer;
  padding: 0 4px;
  line-height: 1.2;
}

.btn-order:disabled { opacity: 0.2; cursor: default; }
.btn-order:not(:disabled):active { color: var(--accent); }

.param-row-name    { font-size: 14px; flex: 1; }
.param-row-actions { display: flex; gap: 8px; }

/* ── Programme editor ─────────────────────────────────── */
.exercise-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.exercise-header { display: flex; flex-direction: column; gap: 6px; }
.exercise-name-row { display: flex; gap: 8px; align-items: center; }
.exercise-name-row input { flex: 1; }
.exercise-muscle { font-size: 13px; }

.series-list   { display: flex; flex-direction: column; gap: 6px; }

.series-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
  gap: 6px;
  align-items: center;
}

.series-row input { text-align: center; }

.series-labels {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
  gap: 6px;
  padding: 0 2px;
}

.series-label { font-size: 11px; color: var(--text-muted); text-align: center; }

.exercise-comment {
  width: 100%;
  box-sizing: border-box;
  margin-top: 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 8px;
  resize: vertical;
}

.btn-remove-series {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 18px;
  cursor: pointer;
  line-height: 1;
  padding: 0 4px;
}

.btn-remove-series:active { color: var(--danger); }
.exercise-actions { display: flex; gap: 8px; }

/* ── Modal ────────────────────────────────────────────── */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.75);
  display: flex;
  align-items: flex-end;
  z-index: 100;
  padding-bottom: env(safe-area-inset-bottom);
}

.modal.hidden { display: none; }

.modal-content {
  background: var(--surface);
  border-radius: 16px 16px 0 0;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  padding: 20px 16px;
  position: relative;
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--surface2);
  border: none;
  color: var(--text-muted);
  font-size: 16px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-title { font-size: 17px; font-weight: 600; color: var(--accent); margin-bottom: 4px; }
.modal-date  { font-size: 12px; color: var(--text-muted); margin-bottom: 16px; }
.modal-exercise { margin-bottom: 16px; }
.modal-exercise-name { font-size: 14px; font-weight: 600; margin-bottom: 6px; }
.modal-series-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.modal-series-table th { color: var(--text-muted); font-weight: 400; padding: 4px 6px; text-align: center; border-bottom: 1px solid #333; }
.modal-series-table td { padding: 5px 6px; text-align: center; }
.series-not-done td { color: var(--text-muted); }
.modal-footer { margin-top: 20px; display: flex; justify-content: flex-end; }

/* ── Dialog ───────────────────────────────────────────── */
.dialog {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 300;
  padding: 24px;
}

.dialog.hidden { display: none; }

.dialog-box {
  background: var(--surface);
  border-radius: 14px;
  padding: 24px 20px 20px;
  width: 100%;
  max-width: 320px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

#dialog-msg { font-size: 15px; line-height: 1.5; text-align: center; }
.dialog-actions { display: flex; gap: 10px; }
.dialog-actions button { flex: 1; }

/* ── Données ──────────────────────────────────────────── */
.data-feedback { font-size: 13px; color: var(--accent); min-height: 20px; }