/* ==========================================================================
   Vitaroxi — Protein Intake Calculator  |  protein.css
   Two-signal rule: orange (#e8750a) = nutrition tool (this tool)
   ========================================================================== */

/* ── CSS Custom Properties ─────────────────────────────────────────────── */
.vxprot {
  --vx-navy:      #000f2b;
  --vx-navy-3:    #0a1f3d;
  --vx-navy-4:    #112244;
  --vx-brand:     #71b230;
  --vx-accent:    #e8750a;
  --vx-accent-d:  #c45e00;
  --vx-accent-p:  #fef3e8;
  --vx-teal:      #1d9e75;
  --vx-teal-p:    #e0f5ee;
  --vx-cream:     #f7f3ee;
  --vx-cream-2:   #eef0e8;
  --vx-extra:     #eaf4d5;
  --vx-text:      #2a3245;
  --vx-muted:     #5a6a4e;
  --vx-muted-d:   #b8c9a0;
  --vx-border-l:  #dde8cc;
  --vx-border-d:  #1e3a5f;
  --vx-err:       #dc2626;
  --vx-rc:        12px;
  --vx-ri:        8px;
}

/* ── Root ────────────────────────────────────────────────────────────────── */
.vxprot {
  display: block;
  overflow-x: hidden;
  width: 100%;
  max-width: 100%;
  background: transparent;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 14px;
  color: var(--vx-text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  padding: 2rem 0;
}

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

.vxprot input,
.vxprot button,
.vxprot select,
.vxprot textarea {
  font-family: inherit;
  font-size: inherit;
}

.vxprot button {
  cursor: pointer;
}

/* ── Wrapper ─────────────────────────────────────────────────────────────── */
.vxprot__wrap {
  max-width: 660px;
  margin: 0 auto;
  padding: 1.5rem 1rem 3rem;
  width: 100%;
  overflow-x: hidden;
}

/* ── Header ──────────────────────────────────────────────────────────────── */
.vxprot__hdr {
  background: var(--vx-navy);
  border-radius: 16px;
  padding: 1.6rem 1.8rem 1.5rem;
  margin-bottom: 1.25rem;
  position: relative;
  overflow: hidden;
}

.vxprot__hdr::before {
  content: '';
  position: absolute;
  top: -40px;
  right: -40px;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
  pointer-events: none;
}

.vxprot__brand {
  display: block;
  font-family: 'Poppins', 'Inter', sans-serif;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--vx-brand);
  margin-bottom: 0.4rem;
}

.vxprot__title {
  font-family: 'Poppins', 'Inter', sans-serif;
  font-size: 1.85rem;
  font-weight: 700;
  font-style: italic;
  color: #fff;
  line-height: 1.15;
  margin-bottom: 0.3rem;
}

.vxprot__sub {
  font-size: 0.82rem;
  color: var(--vx-muted-d);
}

/* ── Card ────────────────────────────────────────────────────────────────── */
.vxprot__card {
  background: #fff;
  border: 1.5px solid var(--vx-border-l);
  border-radius: var(--vx-rc);
  margin-bottom: 1.1rem;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0, 15, 43, 0.07);
}

.vxprot__card-hdr {
  background: var(--vx-navy-3);
  border-radius: 12px 12px 0 0;
  padding: 0.85rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  border-bottom: 1.5px solid var(--vx-border-d);
}

.vxprot__step-badge {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--vx-brand);
  color: #fff;
  font-family: 'Poppins', sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.vxprot__step-badge--check {
  background: var(--vx-accent);
  font-size: 0.85rem;
}

.vxprot__card-title {
  font-family: 'Poppins', sans-serif;
  font-size: 0.88rem;
  font-weight: 600;
  color: #fff;
  letter-spacing: -0.01em;
}

.vxprot__card-body {
  padding: 1.25rem;
  background: var(--vx-cream);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* ── Fields ──────────────────────────────────────────────────────────────── */
.vxprot__field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.vxprot__label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--vx-muted);
  display: block;
}

.vxprot__label--adv {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  margin-bottom: 0.15rem;
}

.vxprot__req {
  color: var(--vx-accent);
  font-weight: 700;
}

.vxprot__opt {
  font-weight: 400;
  opacity: 0.7;
  text-transform: none;
  letter-spacing: 0;
}

.vxprot__err {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--vx-err);
  display: none;
}

.vxprot__err--vis {
  display: block;
}

/* ── Input + Unit ────────────────────────────────────────────────────────── */
.vxprot__iu {
  display: flex;
  align-items: stretch;
  border: 1.5px solid var(--vx-border-l);
  border-radius: var(--vx-ri);
  background: #fff;
  overflow: hidden;
  transition: box-shadow 0.15s, border-color 0.15s;
}

.vxprot__iu:focus-within {
  border-color: var(--vx-navy);
  box-shadow: 0 0 0 3px rgba(0, 15, 43, 0.10);
}

.vxprot__inp {
  flex: 1;
  width: 0;
  min-width: 0;
  padding: 0.65rem 0.75rem;
  border: none;
  outline: none;
  background: transparent;
  font-size: 0.92rem;
  color: var(--vx-text);
  -moz-appearance: textfield;
}

.vxprot__inp::-webkit-outer-spin-button,
.vxprot__inp::-webkit-inner-spin-button {
  -webkit-appearance: none;
}

.vxprot__inp::placeholder {
  color: rgba(90, 106, 78, 0.35);
}

.vxprot__utag {
  display: flex;
  align-items: center;
  padding: 0 0.65rem;
  background: var(--vx-cream-2);
  border-left: 1.5px solid var(--vx-border-l);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--vx-muted);
  white-space: nowrap;
  flex-shrink: 0;
}

/* ── Select ──────────────────────────────────────────────────────────────── */
.vxprot__select {
  width: 100% !important;
  padding: 0.65rem 2.2rem 0.65rem 0.75rem !important;
  border: 1.5px solid var(--vx-border-l) !important;
  border-radius: var(--vx-ri) !important;
  background-color: #fff !important;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%235a6a4e' stroke-width='1.8' fill='none' stroke-linecap='round'/%3E%3C/svg%3E") !important;
  background-repeat: no-repeat !important;
  background-position: right 0.75rem center !important;
  -webkit-appearance: none !important;
  appearance: none !important;
  font-size: 0.88rem !important;
  color: var(--vx-text) !important;
  cursor: pointer !important;
  outline: none !important;
  display: block;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.vxprot__select:focus {
  border-color: var(--vx-navy) !important;
  box-shadow: 0 0 0 3px rgba(0, 15, 43, 0.10) !important;
}

/* ── Weight Box ──────────────────────────────────────────────────────────── */
.vxprot__wbox {
  border: 1.5px solid var(--vx-border-l);
  border-radius: var(--vx-ri);
  overflow: hidden;
  background: #fff;
  transition: box-shadow 0.15s, border-color 0.15s;
}

.vxprot__wbox:focus-within {
  border-color: var(--vx-navy);
  box-shadow: 0 0 0 3px rgba(0, 15, 43, 0.10);
}

.vxprot__wbox > .vxprot__iu {
  border: none;
  border-radius: 0;
  box-shadow: none !important;
}

.vxprot__wtoggle {
  display: flex;
  border-top: 1.5px solid var(--vx-border-l);
}

.vxprot__wtbtn {
  flex: 1;
  padding: 0.42rem 0;
  background: transparent;
  border: none;
  border-right: 1.5px solid var(--vx-border-l);
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--vx-text) !important;
  text-align: center;
  transition: background 0.12s, color 0.12s;
}

.vxprot__wtbtn:last-child {
  border-right: none;
}

.vxprot__wtbtn:hover:not(.vxprot__wtbtn--active) {
  background: var(--vx-accent-p);
}

.vxprot__wtbtn--active {
  background: var(--vx-navy) !important;
  color: #fff !important;
  font-weight: 600;
}

/* ── 2-col grid ──────────────────────────────────────────────────────────── */
.vxprot__g2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

/* ── Gender toggle ───────────────────────────────────────────────────────── */
.vxprot__gender-row {
  display: flex;
  gap: 0.6rem;
}

.vxprot__rbtn {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.6rem 0.9rem;
  border: 1.5px solid var(--vx-border-l);
  border-radius: var(--vx-ri);
  background: #fff;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--vx-text) !important;
  transition: border-color 0.12s, background 0.12s, color 0.12s;
  user-select: none;
}

.vxprot__rbtn:hover {
  border-color: var(--vx-navy);
}

.vxprot__rbtn--sel {
  border-color: var(--vx-navy) !important;
  background: var(--vx-navy) !important;
  color: #fff !important;
  font-weight: 600;
}

.vxprot__rdot {
  width: 13px;
  height: 13px;
  border-radius: 50%;
  border: 1.5px solid var(--vx-border-l);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.12s, background 0.12s;
}

.vxprot__rbtn--sel .vxprot__rdot,
.vxprot__rcell--sel .vxprot__rdot {
  border-color: var(--vx-accent);
  background: var(--vx-accent);
}

.vxprot__rbtn--sel .vxprot__rdot::after,
.vxprot__rcell--sel .vxprot__rdot::after {
  content: '';
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: #fff;
}

/* ── Radio group (goal + formula) ────────────────────────────────────────── */
.vxprot__rgroup {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.vxprot__rgroup--stack {
  flex-direction: column;
  flex-wrap: nowrap;
}

.vxprot__rcell {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.6rem 0.85rem;
  border: 1.5px solid var(--vx-border-l);
  border-radius: var(--vx-ri);
  background: #fff;
  cursor: pointer;
  font-size: 0.83rem;
  font-weight: 500;
  color: var(--vx-text) !important;
  transition: border-color 0.12s, background 0.12s, color 0.12s;
  user-select: none;
  flex: 1 1 calc(50% - 0.25rem);
}

.vxprot__rgroup--stack .vxprot__rcell {
  flex: 1 1 auto;
}

.vxprot__rcell:hover {
  border-color: var(--vx-navy);
}

.vxprot__rcell--sel {
  border-color: var(--vx-navy) !important;
  background: var(--vx-navy) !important;
  color: #fff !important;
  font-weight: 600;
}

.vxprot__rcell-sub {
  font-weight: 400;
  font-size: 0.72rem;
  opacity: 0.7;
}

/* ── Advanced toggle ─────────────────────────────────────────────────────── */
.vxprot__adv-toggle {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  border: 1.5px solid var(--vx-border-l);
  border-radius: var(--vx-ri);
  padding: 0.65rem 0.9rem;
  cursor: pointer;
  font-size: 0.83rem;
  color: var(--vx-muted);
  background: #fff;
  transition: border-color 0.15s;
  user-select: none;
}

.vxprot__adv-toggle:hover {
  border-color: var(--vx-navy);
}

.vxprot__tswitch {
  width: 34px;
  height: 20px;
  border-radius: 100px;
  background: var(--vx-border-l);
  position: relative;
  transition: background 0.2s;
  flex-shrink: 0;
}

.vxprot__tswitch::after {
  content: '';
  position: absolute;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #fff;
  top: 3px;
  left: 3px;
  transition: transform 0.2s;
  box-shadow: 0 1px 4px rgba(0,0,0,0.18);
}

.vxprot__tswitch--on {
  background: var(--vx-accent);
}

.vxprot__tswitch--on::after {
  transform: translateX(14px);
}

/* ── Advanced fields panel ───────────────────────────────────────────────── */
.vxprot__adv-fields {
  display: none;
  margin-top: 0.75rem;
  background: var(--vx-cream-2);
  border: 1.5px solid var(--vx-border-l);
  border-radius: var(--vx-ri);
  padding: 1rem;
  gap: 1rem;
  flex-direction: column;
}

.vxprot__adv-fields--vis {
  display: flex;
}

.vxprot__adv-section {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.vxprot__formula-note {
  background: #fff;
  border-left: 3px solid var(--vx-accent);
  border-radius: 0 6px 6px 0;
  padding: 0.65rem 0.85rem;
  font-size: 0.72rem;
  color: var(--vx-muted);
  line-height: 1.6;
}

.vxprot__formula-note strong {
  color: var(--vx-text);
  font-weight: 600;
}

.vxprot__adv-hint {
  font-size: 0.7rem;
  color: var(--vx-muted);
  line-height: 1.55;
  margin-top: 0.25rem;
}

/* ── Meal chips ──────────────────────────────────────────────────────────── */
.vxprot__meal-row {
  display: flex;
  gap: 0.5rem;
}

.vxprot__mchip {
  flex: 1;
  text-align: center;
  border: 1.5px solid var(--vx-border-l);
  border-radius: var(--vx-ri);
  padding: 0.55rem 0.5rem;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--vx-text) !important;
  background: #fff;
  transition: all 0.15s;
}

.vxprot__mchip:hover:not(.vxprot__mchip--active) {
  border-color: var(--vx-navy);
  background: var(--vx-accent-p);
}

.vxprot__mchip--active {
  background: var(--vx-navy) !important;
  border-color: var(--vx-navy) !important;
  color: #fff !important;
  font-weight: 600;
}

/* ── Calculate Button (orange — nutrition tool) ───────────────────────────── */
.vxprot__btn-calc {
  display: block;
  width: 100%;
  padding: 0.9rem 1rem;
  background: var(--vx-accent);
  color: #fff;
  border: none;
  border-radius: 10px;
  font-family: 'Poppins', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  transition: background 0.15s;
  margin-top: 0.25rem;
}

.vxprot__btn-calc:hover {
  background: var(--vx-accent-d);
}

.vxprot__btn-calc:active {
  transform: scale(0.99);
}

/* ── Results ─────────────────────────────────────────────────────────────── */
.vxprot__results {
  display: none;
}

.vxprot__results--vis {
  display: block;
  animation: vxprotSlideIn 0.3s ease;
}

@keyframes vxprotSlideIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Stat Grid ───────────────────────────────────────────────────────────── */
.vxprot__stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.vxprot__stat-box {
  background: var(--vx-cream);
  border: 1.5px solid var(--vx-border-l);
  border-radius: var(--vx-rc);
  padding: 1rem;
  text-align: center;
  box-shadow: 0 2px 12px rgba(0, 15, 43, 0.07);
}

/* Primary stat box: full width, navy bg */
.vxprot__stat-box--primary {
  grid-column: span 2;
  background: var(--vx-navy);
  border-color: var(--vx-navy);
}

.vxprot__stat-box--hidden {
  display: none;
}

.vxprot__stat-label {
  font-size: 0.62rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--vx-muted);
  margin-bottom: 0.35rem;
}

.vxprot__stat-box--primary .vxprot__stat-label {
  color: var(--vx-accent);
}

.vxprot__stat-val {
  font-family: 'Poppins', sans-serif;
  font-size: 2.6rem;
  font-weight: 700;
  color: #fff;
  line-height: 1;
}

.vxprot__stat-val--sm {
  font-size: 2rem;
  color: var(--vx-text);
}

.vxprot__stat-unit {
  font-size: 0.65rem;
  color: var(--vx-muted-d);
  margin-top: 0.25rem;
}

.vxprot__stat-box:not(.vxprot__stat-box--primary) .vxprot__stat-unit {
  color: var(--vx-muted);
}

.vxprot__range-pill {
  display: inline-flex;
  align-items: center;
  background: rgba(232, 117, 10, 0.15);
  border: 1px solid rgba(232, 117, 10, 0.3);
  border-radius: 100px;
  padding: 0.25rem 0.75rem;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--vx-accent-p);
  margin-top: 0.5rem;
}

/* ── Bar Visualization ───────────────────────────────────────────────────── */
.vxprot__bars {
  margin: 0.25rem 0 0.5rem;
}

.vxprot__bar-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.55rem;
}

.vxprot__bar-row:last-child {
  margin-bottom: 0;
}

.vxprot__bar-lbl {
  width: 4rem;
  font-size: 0.64rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--vx-muted);
  flex-shrink: 0;
}

.vxprot__bar-track {
  flex: 1;
  background: var(--vx-cream-2);
  border-radius: 6px;
  height: 8px;
  overflow: hidden;
}

.vxprot__bar-fill {
  height: 100%;
  border-radius: 6px;
  width: 0;
  transition: width 0.7s cubic-bezier(0.23, 1, 0.32, 1);
}

.vxprot__bar-fill--min    { background: var(--vx-teal); }
.vxprot__bar-fill--target { background: var(--vx-accent); }
.vxprot__bar-fill--max    { background: var(--vx-navy); }

.vxprot__bar-val {
  width: 3.5rem;
  text-align: right;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--vx-text);
  flex-shrink: 0;
}

/* ── Educational Note ────────────────────────────────────────────────────── */
.vxprot__edu {
  background: var(--vx-accent-p);
  border-left: 3px solid var(--vx-accent);
  border-radius: 0 9px 9px 0;
  padding: 0.85rem 1rem;
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--vx-navy-3);
  margin-top: 0.75rem;
  margin-bottom: 0;
}

.vxprot__edu strong {
  font-weight: 600;
  color: var(--vx-navy);
}

/* ── Download Buttons ────────────────────────────────────────────────────── */
.vxprot__dl-row {
  display: flex;
  gap: 0.75rem;
  margin-top: 1rem;
}

.vxprot__btn-pdf,
.vxprot__btn-html {
  flex: 1;
  padding: 0.7rem 0.75rem;
  border-radius: 9px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.vxprot__btn-pdf {
  background: var(--vx-navy);
  color: #fff;
  border: 1.5px solid var(--vx-navy);
}

.vxprot__btn-pdf:hover {
  background: var(--vx-navy-4);
  border-color: var(--vx-navy-4);
}

.vxprot__btn-html {
  background: transparent;
  color: var(--vx-text);
  border: 1.5px solid var(--vx-border-l);
}

.vxprot__btn-html:hover {
  background: var(--vx-accent-p);
  border-color: var(--vx-accent);
  color: var(--vx-accent-d);
}

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 440px) {
  .vxprot__g2 {
    grid-template-columns: 1fr;
  }

  .vxprot__stat-box--primary {
    grid-column: span 1;
  }

  .vxprot__stat-grid {
    grid-template-columns: 1fr;
  }

  .vxprot__dl-row {
    flex-direction: column;
  }

  .vxprot__rcell {
    flex: 1 1 100%;
  }
}

@media (max-width: 360px) {
  .vxprot__wrap {
    padding: 1rem 0.75rem 2rem;
  }

  .vxprot__hdr {
    padding: 1.2rem 1rem 1.1rem;
  }

  .vxprot__title {
    font-size: 1.5rem;
  }

  .vxprot__card-body {
    padding: 1rem;
  }

  .vxprot__meal-row {
    flex-wrap: wrap;
  }

  .vxprot__mchip {
    flex: 1 1 calc(50% - 0.25rem);
  }
}