/* ===== RESET & VARIABLES ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --sidebar-bg:    #1a1a2e;
  --sidebar-hover: rgba(255,255,255,0.06);
  --sidebar-active-bg: rgba(19,115,51,0.18);
  --sidebar-border: rgba(255,255,255,0.08);
  --sidebar-w:     230px;

  --green:         #137333;
  --green-light:   #e6f4ea;
  --green-mid:     #1e8449;

  --content-bg:    #f5f7fa;
  --card-bg:       #ffffff;
  --card-border:   #e8eaed;

  --input-bg:      #f8f9fa;
  --input-border:  #dadce0;
  --input-focus:   #137333;

  --text:          #202124;
  --text-muted:    #5f6368;
  --text-dim:      #aaa;

  /* Google Sheets */
  --sh-header-bg:  #e6f4ea;
  --sh-header-text:#137333;
  --sh-border:     #e0e0e0;
  --sh-row-alt:    #f8f9fa;
  --sh-hover:      #e8f5e9;

  --danger:        #c5221f;
  --font:          'Roboto', sans-serif;
}

html, body {
  height: 100%;
  font-family: var(--font);
  font-size: 14px;
  color: var(--text);
  background: var(--sidebar-bg);
  overflow: hidden;
}

/* ===== LAYOUT ===== */
body { display: flex; }

.sidebar {
  width: var(--sidebar-w);
  min-width: var(--sidebar-w);
  height: 100vh;
  background: var(--sidebar-bg);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
}

.sidebar-top { display: flex; flex-direction: column; }

.main {
  flex: 1;
  height: 100vh;
  overflow-y: auto;
  background: var(--content-bg);
  padding: 36px 44px 72px;
}

/* ===== BRAND ===== */
.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 22px 18px 18px;
  border-bottom: 1px solid var(--sidebar-border);
}

.brand-mark {
  width: 38px;
  height: 38px;
  background: var(--green);
  color: #fff;
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.5px;
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.brand-text { display: flex; flex-direction: column; gap: 1px; }
.brand-name  { font-size: 13px; font-weight: 700; color: #fff; letter-spacing: 0.2px; }
.brand-domain{ font-size: 10px; color: rgba(255,255,255,0.4); letter-spacing: 0.2px; }

/* ===== NAV ===== */
.nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 14px 10px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 8px;
  border-left: 3px solid transparent;
  color: rgba(255,255,255,0.55);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  transition: all 0.15s;
  cursor: pointer;
}

.nav-item svg {
  width: 15px; height: 15px;
  stroke: currentColor; fill: none;
  stroke-width: 2; stroke-linecap: round; stroke-linejoin: round;
  flex-shrink: 0;
}

.nav-item:hover {
  background: var(--sidebar-hover);
  color: rgba(255,255,255,0.85);
}

.nav-item.active {
  background: var(--sidebar-active-bg);
  border-left-color: var(--green);
  color: #fff;
}

/* ===== SIDEBAR ATHLETE CARD ===== */
.sidebar-athlete {
  margin: 0 10px 20px;
  padding: 14px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--sidebar-border);
  border-radius: 10px;
}

.sidebar-athlete.hidden { display: none; }

.sa-label {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 5px;
}

.sa-name  { font-size: 13px; font-weight: 700; color: #fff; margin-bottom: 3px; }
.sa-meta  { font-size: 11px; color: rgba(255,255,255,0.45); line-height: 1.4; }

/* ===== VIEW SYSTEM ===== */
.view { display: none; }
.view.active { display: block; }

/* ===== PAGE HEADER ===== */
.page-header { margin-bottom: 28px; }
.page-header h1 { font-size: 22px; font-weight: 700; color: var(--text); margin-bottom: 4px; }
.page-header p  { font-size: 13px; color: var(--text-muted); }

/* ===== FORM CARDS ===== */
.card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 20px 24px 24px;
  margin-bottom: 16px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}

.card-title {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.8px;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 16px;
}

/* ===== FORM GRID ===== */
.grid { display: grid; gap: 14px; }
.g4   { grid-template-columns: repeat(4, 1fr); }

.g-span2 { grid-column: span 2; }

.field { display: flex; flex-direction: column; gap: 5px; }

label {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.1px;
}

.req { color: var(--green); }

input[type="text"],
input[type="number"],
input[type="password"],
select,
textarea {
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 7px;
  padding: 8px 11px;
  font-family: var(--font);
  font-size: 13px;
  color: var(--text);
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
  width: 100%;
}

input::placeholder, textarea::placeholder { color: #bbb; }
input:focus, select:focus, textarea:focus {
  border-color: var(--input-focus);
  box-shadow: 0 0 0 3px rgba(19,115,51,0.1);
}

select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%235f6368' stroke-width='2'%3E%3Cpolyline points='6,9 12,15 18,9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 30px;
}
select option { background: #fff; color: var(--text); }

textarea { resize: vertical; min-height: 100px; line-height: 1.6; }

/* ===== GENERATE BUTTON ===== */
.form-footer { display: flex; justify-content: flex-end; margin-top: 8px; }

.btn-generate {
  padding: 14px 44px;
  background: var(--green);
  color: #fff;
  border: none;
  border-radius: 9px;
  font-family: var(--font);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.8px;
  cursor: pointer;
  transition: all 0.15s;
  box-shadow: 0 2px 8px rgba(19,115,51,0.3);
}
.btn-generate:hover { background: var(--green-mid); transform: translateY(-1px); box-shadow: 0 4px 14px rgba(19,115,51,0.35); }
.btn-generate:active { transform: none; }

/* ===== OUTPUT HEADER ===== */
.output-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.output-meta h1 { font-size: 24px; font-weight: 700; margin-bottom: 6px; }

.out-badges { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }

.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.5px;
  background: var(--green-light);
  color: var(--green);
}

.out-date { font-size: 12px; color: var(--text-muted); }

.btn-new {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 9px 18px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  font-family: var(--font);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s;
}
.btn-new svg { width: 13px; height: 13px; stroke: currentColor; fill: none; stroke-width: 2.5; stroke-linecap: round; }
.btn-new:hover { border-color: var(--green); color: var(--green); background: var(--green-light); }

/* ===== TABS ===== */
.tabs {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--card-border);
  margin-bottom: 24px;
}

.tab-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 11px 22px;
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  font-family: var(--font);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  letter-spacing: 0.2px;
  transition: all 0.15s;
}

.tab-btn svg { width: 15px; height: 15px; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.tab-btn:hover { color: var(--green); }
.tab-btn.active { color: var(--green); border-bottom-color: var(--green); }

.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ===== INFO CARDS (Coach Note + Decision Summary) ===== */
.panel-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 20px;
}

.info-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 16px 18px;
}

.ic-label {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 1.8px;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 10px;
}

/* Coach Note */
.coach-note-body {
  font-size: 13px;
  font-style: italic;
  color: var(--text-muted);
  line-height: 1.7;
  min-height: 48px;
  outline: none;
}

.coach-note-body:focus { color: var(--text); }
.coach-note-body:empty::before { content: attr(data-placeholder); color: #ccc; pointer-events: none; display: block; }

/* Decision Summary */
.decision-rows { display: flex; flex-direction: column; gap: 8px; }
.dr { display: flex; align-items: baseline; gap: 10px; }
.dr-key {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  white-space: nowrap;
  min-width: 100px;
  letter-spacing: 0.2px;
}
.dr-val {
  flex: 1;
  font-size: 12px;
  color: var(--text);
  border-bottom: 1px dashed var(--input-border);
  padding: 2px 4px;
  outline: none;
  min-width: 80px;
  line-height: 1.5;
}
.dr-val:focus { border-bottom-color: var(--green); }
.dr-val:empty::before { content: attr(data-placeholder); color: #ccc; pointer-events: none; }

/* ===== GOOGLE SHEETS TABLE ===== */
.table-container {
  overflow-x: auto;
  border: 1px solid var(--sh-border);
  border-radius: 8px;
  box-shadow: 0 1px 6px rgba(0,0,0,0.08);
  background: #fff;
}

.sheet-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font);
  font-size: 13px;
  table-layout: auto;
}

/* Header */
.sheet-table thead th {
  background: var(--sh-header-bg);
  color: var(--sh-header-text);
  font-weight: 700;
  font-size: 12px;
  padding: 10px 12px;
  text-align: left;
  border: 1px solid var(--sh-border);
  white-space: nowrap;
  position: sticky;
  top: 0;
  z-index: 2;
}

.th-sub {
  display: block;
  font-size: 10px;
  font-weight: 400;
  color: #5a8a6e;
  letter-spacing: 0.2px;
}

.sheet-table thead th.col-num  { width: 42px; text-align: center; }
.sheet-table thead th.col-sets { width: 54px; }
.sheet-table thead th.col-reps { width: 70px; }
.sheet-table thead th.col-tempo{ width: 90px; }
.sheet-table thead th.col-rest { width: 70px; }
.sheet-table thead th.col-macro{ width: 80px; }
.sheet-table thead th.col-timing{ width: 90px; }
.sheet-table thead th.col-del  { width: 28px; padding: 0; background: var(--sh-header-bg); }

/* Rows */
.sheet-table tbody tr:nth-child(odd)  { background: #fff; }
.sheet-table tbody tr:nth-child(even) { background: var(--sh-row-alt); }
.sheet-table tbody tr:hover           { background: var(--sh-hover); }

.sheet-table tbody tr.table-section-row,
.sheet-table tbody tr.table-section-row:hover {
  background: #18261e !important;
}

.sheet-table tbody tr.table-section-row td {
  padding: 12px 14px;
  border: 0;
  border-top: 2px solid #2d5a39;
  border-bottom: 1px solid #24492f;
  color: #7fe08f;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.sheet-table tbody td {
  padding: 8px 12px;
  border: 1px solid var(--sh-border);
  color: #202124;
  vertical-align: middle;
  min-width: 60px;
  line-height: 1.5;
}

.sheet-table tbody td[contenteditable="true"] {
  outline: none;
  cursor: text;
  min-height: 34px;
}
.sheet-table tbody td[contenteditable="true"]:focus {
  background: #fff9e6 !important;
  box-shadow: inset 0 0 0 2px var(--green);
  position: relative;
  z-index: 1;
}

.cell-num {
  text-align: center;
  color: #888;
  font-size: 11px;
  font-weight: 600;
  user-select: none;
}

/* Delete button cell */
td.col-del {
  padding: 0 !important;
  width: 28px;
  text-align: center;
  border-color: var(--sh-border) !important;
}

.del-btn {
  display: none;
  width: 22px;
  height: 22px;
  margin: auto;
  background: none;
  border: none;
  color: #ccc;
  font-size: 14px;
  cursor: pointer;
  border-radius: 4px;
  line-height: 1;
  transition: all 0.1s;
}
.del-btn:hover { color: var(--danger); background: #fce8e6; }

.sheet-table tbody tr:hover .del-btn { display: flex; align-items: center; justify-content: center; }

/* Totals row */
.totals-row td {
  background: #e6f4ea !important;
  border: 1px solid var(--sh-border);
  font-weight: 700;
  color: var(--green);
  padding: 9px 12px;
}
.totals-label { font-size: 11px; letter-spacing: 0.8px; }
.totals-val   { text-align: center; font-size: 13px; }

/* ===== TABLE FOOTER ===== */
.table-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 12px;
  flex-wrap: wrap;
  gap: 10px;
}

.btn-add-row {
  padding: 7px 16px;
  background: none;
  border: 1px dashed var(--card-border);
  border-radius: 7px;
  font-family: var(--font);
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s;
}
.btn-add-row:hover { border-color: var(--green); color: var(--green); background: var(--green-light); }

.copy-btns { display: flex; gap: 10px; flex-wrap: wrap; }

.btn-copy {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 8px 16px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 7px;
  font-family: var(--font);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.3px;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s;
}
.btn-copy svg { width: 13px; height: 13px; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.btn-copy:hover { border-color: var(--green); color: var(--green); background: var(--green-light); }

/* ===== CHAT ===== */
.chat-panel {
  margin-top: 18px;
  padding: 14px;
  border: 1px solid var(--card-border);
  border-radius: 10px;
  background: linear-gradient(180deg, #13211a 0%, #0f1712 100%);
}

.chat-label {
  font-size: 11px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: #8db69c;
  margin-bottom: 10px;
  font-weight: 700;
}

.chat-history {
  min-height: 78px;
  max-height: 220px;
  overflow-y: auto;
  padding: 10px;
  border: 1px solid rgba(111, 207, 151, 0.12);
  border-radius: 8px;
  background: rgba(4, 10, 7, 0.7);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.chat-empty {
  color: #7d8f84;
  font-size: 12px;
}

.chat-msg {
  font-size: 12px;
  line-height: 1.45;
  color: #d8e4dc;
}

.chat-msg-user {
  color: #c3d2c8;
}

.chat-msg-coach {
  color: #e5f3ea;
}

.chat-role {
  display: inline-block;
  min-width: 58px;
  font-size: 10px;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: #6fcf97;
  font-weight: 700;
}

.chat-compose {
  display: flex;
  gap: 10px;
  margin-top: 12px;
  align-items: stretch;
}

.chat-input {
  flex: 1;
  min-width: 0;
  border-radius: 8px;
  border: 1px solid #274334;
  background: #0b120e;
  color: #e4efe7;
  padding: 12px 14px;
  font-family: var(--font);
  font-size: 13px;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.chat-input::placeholder {
  color: #708178;
}

.chat-input:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(111, 207, 151, 0.12);
}

.chat-send-btn {
  border: 1px solid var(--green);
  background: linear-gradient(180deg, var(--green) 0%, var(--green-mid) 100%);
  color: #07200e;
  border-radius: 8px;
  padding: 0 18px;
  font-family: var(--font);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s, filter 0.15s;
}

.chat-send-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(19, 115, 51, 0.3);
  filter: brightness(1.03);
}

.chat-send-btn:active {
  transform: none;
}

/* ===== TOAST ===== */
.toast {
  position: fixed;
  bottom: 28px;
  right: 28px;
  background: #1e3a2f;
  border: 1px solid var(--green);
  color: #6fcf97;
  padding: 11px 22px;
  border-radius: 9px;
  font-size: 13px;
  font-weight: 600;
  z-index: 999;
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
  transition: opacity 0.3s;
}
.toast.hidden { display: none; }

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #ccc; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #aaa; }

/* ===== RESPONSIVE ===== */
@media (max-width: 960px) {
  .main { padding: 24px 20px 48px; }
  .grid.g4 { grid-template-columns: repeat(2, 1fr); }
  .g-span2 { grid-column: span 2; }
  .panel-cards { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .sidebar { width: 0; min-width: 0; border: none; }
  .main { padding: 16px 14px 40px; }
  .grid.g4 { grid-template-columns: 1fr 1fr; }
  .output-header { flex-direction: column; }
  .chat-compose { flex-direction: column; }
  .chat-send-btn { min-height: 44px; }
}