:root{
  --bg:#ffffff; 
  --text:#111; 
  --muted:#666; 
  --accent:#0b84ff; 
  --danger:#d64545; 
  --card:#f6f7fb;
  --input-bg: #fff; 
  --input-border: rgba(0,0,0,0.1);
}
body.dark{
  --bg:#0f1114; 
  --text:#e9eef6; 
  --muted:#9aa4b2; 
  --accent:#3aa0ff; 
  --danger:#ff6b6b; 
  --card:#111418;
  --input-bg: #1a1e23; 
  --input-border: rgba(255,255,255,0.1);
}
*{box-sizing:border-box}
html,body,#app{height:100%}
html, body {
  overscroll-behavior: none;
  touch-action: pan-x pan-y;
}
body{margin:0;font-family:Inter, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue";background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}
header{display:flex;align-items:center;gap:12px;padding:12px 16px;border-bottom:1px solid rgba(0,0,0,0.06);background:var(--card);position:sticky;top:0;z-index:6}
.app-icon{width:28px;height:28px;border-radius:6px}
.app-title{font-size:22px;font-weight:800;margin:0;letter-spacing:0.4px;flex:1}
.app-title::after{content:"";display:block;width:28px;height:3px;background:var(--accent);border-radius:2px;margin-top:2px}
#hamburger{font-size:22px;background:transparent;border:0;color:var(--text);margin-left:auto}
header h1{font-size:18px;margin:0;flex:1}
.datetime{font-size:12px;color:var(--muted)}

main{padding:12px;max-width:720px;margin:0 auto}
/* Contenedor del calendario mensual compacto */
.calendar-strip{display:block;padding:4px 0 8px}
.calendar-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:4px}
.calendar-title{font-weight:700;font-size:16px}
.cal-controls { display: flex; align-items: center; gap: 8px; }
.cal-nav{display:flex;gap:4px}
/* Removed .cal-nav button rule, styles applied via .small and .secondary */
/* .cal-nav button{background:transparent;color:var(--text);border:1px solid rgba(0,0,0,0.06);padding:5px 8px;border-radius:8px} */

/* Grid de mes más compacto */
.calendar-grid{display:flex;flex-direction:column;gap:3px;width:100%}
.calendar-row{display:flex;gap:3px}
.calendar-cell{flex:1;min-width:0;padding:4px;border-radius:6px;text-align:center;border:0;background:transparent;cursor:pointer;color:var(--text)}
.calendar-cell.header-cell{font-size:10px;color:var(--muted);text-transform:uppercase;letter-spacing:0.5px;padding:2px 2px}
.calendar-day{padding:4px 2px;border-radius:6px;transition:none;background:transparent;border:1px solid transparent;display:flex;align-items:center;justify-content:center;position:relative}
.calendar-day:hover{transform:none;box-shadow:none}
.calendar-day.today{border-color:var(--accent);font-weight:700}
.calendar-day.selected{background:var(--accent);color:#fff;box-shadow:none}
.calendar-day.muted{opacity:0.45}
.calendar-day .day-num{font-size:14px;font-weight:700;line-height:1}
.calendar-day small{display:block;color:var(--muted);font-size:11px;text-transform:uppercase;letter-spacing:0.5px}
.calendar-day .day-dot{position:absolute;right:4px;bottom:4px;width:6px;height:6px;border-radius:50%;background:var(--accent)}

.day-panel{background:var(--card);padding:12px;border-radius:12px}
.day-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
.actions{display:flex;gap:8px}
button{padding:8px 10px;border-radius:8px;border:0;cursor:pointer;background:var(--accent);color:#fff}
button.small {
    padding: 5px 8px;
    font-size: 14px;
}
button.destructive{background:var(--danger)}
button.secondary{background:transparent;color:var(--text);border:1px solid var(--input-border)}

.ex-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:8px}
.ex-item{display:flex;justify-content:space-between;align-items:center;padding:10px;border-radius:10px;background:rgba(0,0,0,0.03)}
.ex-item .meta{display:flex;flex-direction:column}
.ex-item .meta .type{font-weight:600}
.ex-item .meta .weight{font-size:13px;color:var(--muted)}

/* Muscle Icon in List */
.ex-item .meta .type {
    display: flex;
    align-items: center;
    gap: 8px;
}
.muscle-icon {
    width: 24px;
    height: 24px;
    filter: invert(0.1); /* Default slight dark filter */
}
body.dark .muscle-icon {
    filter: invert(0.9); /* Invert color for dark mode */
}


.empty{color:var(--muted);padding:16px;text-align:center}

.modal{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,0.35);z-index:40}
#modal {
  align-items: flex-start;
  padding-top: 60px;
}
.modal-content{width:92%;max-width:420px;background:var(--card);padding:16px;border-radius:12px;position:relative}
.hidden{display:none}
.close{position:absolute;right:8px;top:8px;background:transparent;border:0;font-size:16px;color:var(--muted)}
form label{display:block;margin:8px 0}

form label.form-field{ margin: 12px 0; }
form label.form-field span { display: block; margin-bottom: 4px; color: var(--muted); font-size: 13px; font-weight: 500; }

form input[type="text"],form input[type="number"]{width:100%;padding:12px;border-radius:8px;border:1px solid var(--input-border);background:var(--input-bg);color:var(--text); transition: border-color 0.2s;}
form input[type="text"]:focus,form input[type="number"]:focus{outline:none;border-color:var(--accent);border-width:2px; padding: 11px;}

/* New styles for multiple weight inputs (sets) */
.weight-inputs-container {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 8px;
}

.weight-input-row {
    display: flex;
    align-items: center;
    gap: 8px;
}
.weight-input-row input {
    flex-grow: 1;
    /* Reset padding from generic input style to match the standard 12px padding for consistency */
    padding: 12px;
}
.weight-input-row input:focus {
    padding: 11px; /* Match focused padding */
}
.weight-input-row button.remove-weight-btn {
    width: 44px; /* Touch target */
    height: 44px;
    padding: 0;
    font-size: 16px;
    background: var(--danger);
}


/* Icon Selector Styles */
.icon-selector-container {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    padding: 4px 0;
}
.icon-option {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px; /* Touch friendly size */
    height: 44px;
    padding: 4px;
    border-radius: 8px;
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    transition: all 0.2s;
    color: var(--muted); /* For 'Ninguno' text */
    font-size: 11px;
    font-weight: 500;
}
.icon-option img {
    width: 24px;
    height: 24px;
    filter: invert(0.1); /* Match list icon style */
}
.icon-option.selected {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff; /* For 'Ninguno' text */
}
.icon-option.selected img {
    filter: none; /* Icons become white on accent background */
}
body.dark .icon-option img {
    filter: invert(0.9);
}
body.dark .icon-option.selected img {
    filter: none;
}


.form-actions{display:flex;gap:8px;justify-content:flex-end;margin-top:12px}

.menu{position:fixed;right:0;top:0;height:100%;width:86%;max-width:360px;background:var(--card);box-shadow:-8px 0 24px rgba(0,0,0,0.12);z-index:30;padding:12px}
.menu.hidden{display:none}
.menu-header{display:flex;justify-content:space-between;align-items:center}
.menu-body{margin-top:12px}
.switch-row{display:flex;justify-content:space-between;align-items:center;padding:12px 0}
.menu-section{margin-top:12px;display:flex;flex-direction:column;gap:8px}

.toast{position:fixed;left:50%;transform:translateX(-50%);bottom:20px;background:#222;color:#fff;padding:8px 12px;border-radius:8px;z-index:50}

/* Year selector styles */
.year-selector-content {
    max-width: 300px; /* Override max-width for smaller popup */
}
.year-selector-content h3 {
    margin-top: 0;
}
.year-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-top: 15px;
    max-height: 300px;
    overflow-y: auto;
    padding-right: 5px; /* Account for scrollbar space if present */
}
.year-grid button {
    background: var(--input-bg);
    color: var(--text);
    border: 1px solid var(--input-border);
    padding: 12px 0;
    font-size: 16px;
    font-weight: 600;
    border-radius: 8px;
    transition: background 0.1s, border-color 0.1s;
}
.year-grid button.current-selection {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

.modal-content.large-content {
    max-width: 600px; /* Allow wider modal for text content */
    width: 96%;
    padding: 20px;
}
.scrollable-content {
    max-height: 75vh; /* Limit height to 75% of viewport height */
    overflow-y: auto;
    padding-right: 5px; /* Space for scrollbar */
    line-height: 1.6;
}
.scrollable-content p {
    margin-bottom: 1em;
}

footer a { color: var(--accent); text-decoration: underline; }
body.dark footer a { color:#fff; }

@media(min-width:700px){
  main{padding:20px}
  .calendar-day{min-width:auto}
}
* { user-select: none; }
input, textarea { user-select: text; }