/*
 * CGPA Calculator India Pro Toolkit
 * Frontend + Admin Shared Stylesheet
 * Author: Kundariya Dharmeshkumar — Design Engineer & Website Developer
 */

/* ── CSS Variables ─────────────────────────────────────────────────────────── */
:root {
  --cgpa-p:        #6c63ff;
  --cgpa-s:        #f64f59;
  --cgpa-p-light:  #ede9ff;
  --cgpa-white:    #ffffff;
  --cgpa-bg:       #f5f6ff;
  --cgpa-border:   #e0e3ff;
  --cgpa-text:     #2d2d3a;
  --cgpa-muted:    #7b7b9a;
  --cgpa-radius:   16px;
  --cgpa-shadow:   0 4px 24px rgba(108,99,255,.12);
  --cgpa-font:     'Segoe UI', 'Inter', system-ui, sans-serif;
  --cgpa-scale:    1;
}

/* ── Reset ─────────────────────────────────────────────────────────────────── */
.cgpa-wrap *,
.cgpa-wrap *::before,
.cgpa-wrap *::after {
  box-sizing: border-box;
}

/* ── Outer Wrapper ─────────────────────────────────────────────────────────── */
.cgpa-wrap {
  font-family: var(--cgpa-font);
  font-size: calc(1rem * var(--cgpa-scale));
  color: var(--cgpa-text);
  max-width: 860px;
  margin: 0 auto;
  padding: 8px 4px;
}

/* ── Calculator Card ───────────────────────────────────────────────────────── */
.cgpa-calculator-card {
  background: var(--cgpa-white);
  border-radius: var(--cgpa-radius);
  border: 1px solid var(--cgpa-border);
  padding: 28px 28px 22px;
  box-shadow: var(--cgpa-shadow);
  margin-bottom: 24px;
  animation: cgpaFadeIn .35s ease;
}

@keyframes cgpaFadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Calc Header ───────────────────────────────────────────────────────────── */
.cgpa-calc-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 22px;
  padding-bottom: 18px;
  border-bottom: 2px solid var(--cgpa-border);
}

.cgpa-calc-icon {
  font-size: 2.2rem;
  line-height: 1;
  filter: drop-shadow(0 2px 6px rgba(108,99,255,.3));
}

.cgpa-calc-title {
  margin: 0 0 4px;
  font-size: 1.3rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--cgpa-p), var(--cgpa-s));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.cgpa-calc-sub {
  margin: 0;
  font-size: .83rem;
  color: var(--cgpa-muted);
}

/* ── Form Group ────────────────────────────────────────────────────────────── */
.cgpa-form-group {
  margin-bottom: 16px;
}

.cgpa-label {
  display: block;
  font-size: .85rem;
  font-weight: 600;
  color: #444;
  margin-bottom: 6px;
}

.cgpa-input-field,
.cgpa-select {
  width: 100%;
  padding: 10px 14px;
  border: 1.5px solid var(--cgpa-border);
  border-radius: 10px;
  font-size: .93rem;
  font-family: var(--cgpa-font);
  color: var(--cgpa-text);
  background: var(--cgpa-white);
  transition: border-color .2s, box-shadow .2s;
  appearance: none;
  -webkit-appearance: none;
}

.cgpa-input-field:focus,
.cgpa-select:focus {
  outline: none;
  border-color: var(--cgpa-p);
  box-shadow: 0 0 0 3px rgba(108,99,255,.15);
}

/* ── Subject Row ───────────────────────────────────────────────────────────── */
.cgpa-subject-row {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr 36px;
  gap: 8px;
  align-items: center;
  margin-bottom: 8px;
  animation: cgpaFadeIn .25s ease;
}

@media (max-width: 560px) {
  .cgpa-subject-row {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
  }
  .cgpa-remove-row { grid-column: 2; justify-self: end; }
}

.cgpa-remove-row {
  background: #fff0f0;
  border: 1px solid #ffcdd2;
  color: #e53935;
  border-radius: 8px;
  width: 32px;
  height: 32px;
  cursor: pointer;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .15s;
}
.cgpa-remove-row:hover { background: #ffebee; }

/* ── Button Group ──────────────────────────────────────────────────────────── */
.cgpa-btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.cgpa-action-btn {
  padding: 10px 20px;
  border-radius: 10px;
  border: none;
  font-size: .9rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform .15s, box-shadow .15s;
  font-family: var(--cgpa-font);
}
.cgpa-action-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(0,0,0,.12);
}
.cgpa-action-btn:active { transform: translateY(0); }

.cgpa-calc-btn {
  background: linear-gradient(135deg, var(--cgpa-p), var(--cgpa-s));
  color: #fff;
  box-shadow: 0 3px 14px rgba(108,99,255,.35);
}

.cgpa-add-btn {
  background: var(--cgpa-p-light);
  color: var(--cgpa-p);
}

.cgpa-reset-btn {
  background: #f5f5f5;
  color: #555;
}

/* ── Result Card ───────────────────────────────────────────────────────────── */
.cgpa-result-card {
  background: linear-gradient(135deg, #fafbff 0%, #f0eeff 100%);
  border: 1px solid var(--cgpa-border);
  border-radius: var(--cgpa-radius);
  padding: 24px;
  margin-top: 22px;
  animation: cgpaFadeIn .3s ease;
}

.cgpa-result-title {
  margin: 0 0 16px;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--cgpa-p);
}

.cgpa-result-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 14px;
  margin-bottom: 16px;
}

.cgpa-result-item {
  background: #fff;
  border: 1px solid var(--cgpa-border);
  border-radius: 12px;
  padding: 14px 16px;
  text-align: center;
  box-shadow: 0 2px 8px rgba(108,99,255,.07);
}

.cgpa-result-label {
  display: block;
  font-size: .75rem;
  color: var(--cgpa-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .04em;
  margin-bottom: 6px;
}

.cgpa-result-value {
  display: block;
  font-size: 1.7rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--cgpa-p), var(--cgpa-s));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.cgpa-result-note {
  font-size: .87rem;
  color: var(--cgpa-muted);
  margin: 10px 0 0;
  text-align: center;
}

/* ── Progress Bar ──────────────────────────────────────────────────────────── */
.cgpa-progress-wrap {
  height: 10px;
  background: var(--cgpa-border);
  border-radius: 99px;
  overflow: hidden;
  margin: 10px 0 14px;
}

.cgpa-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--cgpa-p), var(--cgpa-s));
  border-radius: 99px;
  transition: width .6s cubic-bezier(.4,0,.2,1);
}

/* ── Badge ─────────────────────────────────────────────────────────────────── */
.cgpa-badge-wrap {
  text-align: center;
  margin-top: 10px;
}

.cgpa-badge {
  display: inline-block;
  padding: 7px 20px;
  border-radius: 99px;
  font-weight: 700;
  font-size: .88rem;
  letter-spacing: .03em;
}

.cgpa-badge-excellent {
  background: linear-gradient(135deg, #43e97b, #38f9d7);
  color: #fff;
  box-shadow: 0 3px 12px rgba(67,233,123,.3);
}

.cgpa-badge-average {
  background: linear-gradient(135deg, #f6d365, #fda085);
  color: #fff;
  box-shadow: 0 3px 12px rgba(246,211,101,.3);
}

.cgpa-badge-poor {
  background: linear-gradient(135deg, #f093fb, #f5576c);
  color: #fff;
  box-shadow: 0 3px 12px rgba(245,87,108,.3);
}

/* ── Tabs ──────────────────────────────────────────────────────────────────── */
.cgpa-tab-wrap {
  display: flex;
  gap: 4px;
  background: var(--cgpa-bg);
  border-radius: 10px;
  padding: 4px;
  margin-bottom: 18px;
}

.cgpa-tab {
  flex: 1;
  padding: 9px 12px;
  border: none;
  background: transparent;
  border-radius: 8px;
  font-size: .88rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--cgpa-muted);
  transition: background .2s, color .2s;
  font-family: var(--cgpa-font);
}

.cgpa-tab.active {
  background: #fff;
  color: var(--cgpa-p);
  box-shadow: 0 2px 8px rgba(108,99,255,.15);
}

.cgpa-tab-panel { animation: cgpaFadeIn .25s ease; }

/* ── "All Calculators" Panel ───────────────────────────────────────────────── */
.cgpa-all-wrap {
  font-family: var(--cgpa-font);
  max-width: 900px;
  margin: 0 auto;
}

.cgpa-all-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 20px;
}

.cgpa-all-tab {
  padding: 8px 16px;
  background: var(--cgpa-bg);
  border: 1.5px solid var(--cgpa-border);
  border-radius: 8px;
  font-size: .83rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--cgpa-muted);
  font-family: var(--cgpa-font);
  transition: all .2s;
}

.cgpa-all-tab.active,
.cgpa-all-tab:hover {
  background: linear-gradient(135deg, var(--cgpa-p), var(--cgpa-s));
  color: #fff;
  border-color: transparent;
}

/* ── AdSense Zones ─────────────────────────────────────────────────────────── */
.cgpa-ad-zone {
  text-align: center;
  padding: 10px 0;
  min-height: 50px;
}

/* ── Disabled Notice ───────────────────────────────────────────────────────── */
.cgpa-disabled-notice {
  background: #fff8e1;
  border: 1px solid #ffe082;
  color: #795548;
  padding: 14px 20px;
  border-radius: 10px;
  font-size: .9rem;
  font-weight: 500;
  margin: 12px 0;
}

/* ── Footer Credit ─────────────────────────────────────────────────────────── */
.cgpa-footer-credit {
  text-align: center;
  font-size: .75rem;
  color: var(--cgpa-muted);
  padding: 12px 0 4px;
  border-top: 1px solid var(--cgpa-border);
  margin-top: 16px;
}

/* ── Print Styles ──────────────────────────────────────────────────────────── */
@media print {
  .cgpa-btn-group,
  .cgpa-ad-zone,
  .cgpa-footer-credit { display: none !important; }
  .cgpa-calculator-card { box-shadow: none; border: 1px solid #ddd; }
}

/* ── Responsive ────────────────────────────────────────────────────────────── */
@media (max-width: 640px) {
  .cgpa-calculator-card { padding: 18px 14px 16px; }
  .cgpa-calc-title { font-size: 1.1rem; }
  .cgpa-result-value { font-size: 1.35rem; }
  .cgpa-btn-group { gap: 7px; }
  .cgpa-action-btn { padding: 9px 14px; font-size: .83rem; }
  .cgpa-all-tabs { gap: 4px; }
  .cgpa-all-tab { padding: 7px 11px; font-size: .78rem; }
}