/* ================================================================
   Carghor Loan Calculator – style.css
   ================================================================ */

/* ── CSS Variables (Light theme) ── */
:root {
    --lc-bg:          #f0f4ff;
    --lc-card:        #ffffff;
    --lc-border:      #e2e8f0;
    --lc-text:        #1e293b;
    --lc-text-muted:  #64748b;
    --lc-primary:     #3b82f6;
    --lc-primary-dk:  #2563eb;
    --lc-green:       #22c55e;
    --lc-orange:      #f97316;
    --lc-red:         #ef4444;
    --lc-shadow:      0 4px 24px rgba(59,130,246,.10);
    --lc-shadow-sm:   0 2px 8px  rgba(0,0,0,.06);
    --lc-radius:      14px;
    --lc-radius-sm:   8px;
    --lc-transition:  .25s ease;
    --lc-font:        -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

/* ── Dark theme ── */
.lc-dark {
    --lc-bg:         #0f172a;
    --lc-card:       #1e293b;
    --lc-border:     #334155;
    --lc-text:       #f1f5f9;
    --lc-text-muted: #94a3b8;
    --lc-shadow:     0 4px 24px rgba(0,0,0,.40);
    --lc-shadow-sm:  0 2px 8px  rgba(0,0,0,.30);
}

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

.lc-wrap {
    font-family:      var(--lc-font);
    background:       var(--lc-bg);
    color:            var(--lc-text);
    border-radius:    var(--lc-radius);
    padding:          28px 24px 32px;
    max-width:        900px;
    margin:           0 auto;
    transition:       background var(--lc-transition), color var(--lc-transition);
}

/* ── Header ── */
.lc-header {
    display:         flex;
    align-items:     center;
    justify-content: space-between;
    flex-wrap:       wrap;
    gap:             12px;
    margin-bottom:   22px;
}
.lc-title {
    font-size:   1.55rem;
    font-weight: 700;
    color:       var(--lc-primary);
    letter-spacing: -.3px;
}
.lc-header-controls { display: flex; align-items: center; gap: 10px; }

/* ── Tabs ── */
.lc-tabs {
    display:       flex;
    gap:           6px;
    flex-wrap:     wrap;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--lc-border);
    padding-bottom: 0;
}
.lc-tab {
    background:    transparent;
    border:        none;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
    padding:       10px 18px;
    font-size:     .9rem;
    font-weight:   600;
    color:         var(--lc-text-muted);
    cursor:        pointer;
    border-radius: var(--lc-radius-sm) var(--lc-radius-sm) 0 0;
    transition:    color var(--lc-transition), border-color var(--lc-transition), background var(--lc-transition);
}
.lc-tab:hover  { color: var(--lc-primary); background: rgba(59,130,246,.06); }
.lc-tab.active { color: var(--lc-primary); border-bottom-color: var(--lc-primary); }

/* ── Tab panels ── */
.lc-tab-panel         { display: none; }
.lc-tab-panel.active  { display: block; animation: lcFadeIn .3s ease; }

@keyframes lcFadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0);   }
}

/* ── Card ── */
.lc-card {
    background:    var(--lc-card);
    border:        1px solid var(--lc-border);
    border-radius: var(--lc-radius);
    box-shadow:    var(--lc-shadow);
    padding:       24px;
    transition:    background var(--lc-transition), border-color var(--lc-transition);
}
.lc-form-card { margin-bottom: 24px; }

/* ── Grid ── */
.lc-grid-2 {
    display:               grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap:                   18px 20px;
    margin-bottom:         20px;
}

/* ── Fields ── */
.lc-field { display: flex; flex-direction: column; gap: 6px; }
.lc-field label {
    font-size:   .82rem;
    font-weight: 600;
    color:       var(--lc-text-muted);
    text-transform: uppercase;
    letter-spacing: .4px;
}

/* ── Input wrap ── */
.lc-input-wrap {
    display:       flex;
    align-items:   center;
    border:        1.5px solid var(--lc-border);
    border-radius: var(--lc-radius-sm);
    background:    var(--lc-card);
    overflow:      hidden;
    transition:    border-color var(--lc-transition), box-shadow var(--lc-transition);
}
.lc-input-wrap:focus-within {
    border-color: var(--lc-primary);
    box-shadow:   0 0 0 3px rgba(59,130,246,.15);
}
.lc-input {
    flex:       1;
    border:     none;
    outline:    none;
    background: transparent;
    color:      var(--lc-text);
    font-size:  .95rem;
    padding:    10px 12px;
    min-width:  0;
}
.lc-input::placeholder { color: var(--lc-text-muted); opacity: .7; }
.lc-prefix, .lc-suffix {
    padding:     0 10px;
    font-size:   .85rem;
    font-weight: 600;
    color:       var(--lc-text-muted);
    white-space: nowrap;
    background:  rgba(100,116,139,.07);
    align-self:  stretch;
    display:     flex;
    align-items: center;
}

/* ── Row gap (years + months) ── */
.lc-row-gap { display: flex; gap: 8px; }
.lc-row-gap .lc-input-wrap { flex: 1; }

/* ── Select wrapper (custom CSS triangle arrow) ── */
.lc-wrap .lc-select-wrap {
    position: relative;
    display:  block;
    width:    100%;
}
.lc-wrap .lc-select-wrap::after {
    content:        '';
    position:       absolute;
    right:          13px;
    top:            50%;
    transform:      translateY(-50%);
    width:          0;
    height:         0;
    border-left:    5px solid transparent;
    border-right:   5px solid transparent;
    border-top:     6px solid #64748b;
    pointer-events: none;
    z-index:        2;
}
.lc-wrap.lc-dark .lc-select-wrap::after {
    border-top-color: #94a3b8;
}

/* ── Select ── */
.lc-wrap .lc-select {
    display:            block !important;
    visibility:         visible !important;
    opacity:            1 !important;
    width:              100% !important;
    border:             1.5px solid var(--lc-border) !important;
    border-radius:      var(--lc-radius-sm) !important;
    background-color:   var(--lc-card) !important;
    background-image:   none !important;
    color:              var(--lc-text) !important;
    font-size:          .93rem !important;
    font-family:        var(--lc-font) !important;
    padding:            10px 36px 10px 12px !important;
    margin:             0 !important;
    outline:            none !important;
    cursor:             pointer !important;
    line-height:        1.4 !important;
    height:             auto !important;
    box-shadow:         none !important;
    -webkit-appearance: none !important;
    -moz-appearance:    none !important;
    appearance:         none !important;
    transition:         border-color var(--lc-transition), box-shadow var(--lc-transition);
}
.lc-wrap .lc-select:focus {
    border-color: var(--lc-primary) !important;
    box-shadow:   0 0 0 3px rgba(59,130,246,.15) !important;
    outline:      none !important;
}
.lc-wrap .lc-select option {
    background-color: var(--lc-card);
    color:            var(--lc-text);
}
.lc-wrap.lc-dark .lc-select {
    background-color: #1e293b !important;
    color:            #f1f5f9 !important;
    border-color:     #334155 !important;
}
.lc-wrap.lc-dark .lc-select option {
    background-color: #1e293b;
    color:            #f1f5f9;
}

/* ── Currency select (header) ── */
.lc-wrap .lc-select-sm {
    display:            inline-block !important;
    visibility:         visible !important;
    opacity:            1 !important;
    border:             1.5px solid var(--lc-border) !important;
    border-radius:      var(--lc-radius-sm) !important;
    background-color:   var(--lc-card) !important;
    background-image:   none !important;
    color:              var(--lc-text) !important;
    font-size:          .82rem !important;
    font-family:        var(--lc-font) !important;
    padding:            6px 10px !important;
    margin:             0 !important;
    outline:            none !important;
    cursor:             pointer !important;
    height:             auto !important;
    box-shadow:         none !important;
}

/* ── Buttons ── */
.lc-actions { display: flex; gap: 12px; flex-wrap: wrap; }

.lc-btn-primary {
    background:    linear-gradient(135deg, var(--lc-primary), var(--lc-primary-dk));
    color:         #fff;
    border:        none;
    border-radius: var(--lc-radius-sm);
    padding:       11px 28px;
    font-size:     .95rem;
    font-weight:   700;
    cursor:        pointer;
    box-shadow:    0 4px 14px rgba(59,130,246,.35);
    transition:    transform var(--lc-transition), box-shadow var(--lc-transition);
    letter-spacing: .2px;
}
.lc-btn-primary:hover  { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(59,130,246,.45); }
.lc-btn-primary:active { transform: translateY(0);    box-shadow: 0 2px 8px  rgba(59,130,246,.30); }

.lc-btn-secondary {
    background:    transparent;
    color:         var(--lc-text-muted);
    border:        1.5px solid var(--lc-border);
    border-radius: var(--lc-radius-sm);
    padding:       10px 22px;
    font-size:     .93rem;
    font-weight:   600;
    cursor:        pointer;
    transition:    background var(--lc-transition), color var(--lc-transition);
}
.lc-btn-secondary:hover { background: var(--lc-border); color: var(--lc-text); }

.lc-btn-icon {
    background:    var(--lc-card);
    border:        1.5px solid var(--lc-border);
    border-radius: var(--lc-radius-sm);
    width:         36px;
    height:        36px;
    font-size:     1.1rem;
    cursor:        pointer;
    display:       flex;
    align-items:   center;
    justify-content: center;
    transition:    background var(--lc-transition);
    color:         var(--lc-text);
}
.lc-btn-icon:hover { background: var(--lc-border); }

.lc-btn-sm {
    background:    var(--lc-bg);
    border:        1.5px solid var(--lc-border);
    border-radius: var(--lc-radius-sm);
    padding:       6px 14px;
    font-size:     .8rem;
    font-weight:   600;
    cursor:        pointer;
    color:         var(--lc-text-muted);
    transition:    background var(--lc-transition), color var(--lc-transition);
}
.lc-btn-sm:hover { background: var(--lc-primary); color: #fff; border-color: var(--lc-primary); }

/* ── Error ── */
.lc-error {
    color:      var(--lc-red);
    font-size:  .85rem;
    font-weight: 600;
    margin-top: 10px;
    min-height: 1.2em;
}

/* ── Results ── */
.lc-results { animation: lcFadeIn .35s ease; }

.lc-result-grid {
    display:               grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap:                   16px;
    margin-bottom:         24px;
}

.lc-result-card {
    border-radius: var(--lc-radius);
    padding:       20px 22px;
    display:       flex;
    flex-direction: column;
    gap:           8px;
    box-shadow:    var(--lc-shadow-sm);
    animation:     lcSlideUp .4s ease both;
}
@keyframes lcSlideUp {
    from { opacity: 0; transform: translateY(16px); }
    to   { opacity: 1; transform: translateY(0);    }
}
.lc-result-card:nth-child(2) { animation-delay: .08s; }
.lc-result-card:nth-child(3) { animation-delay: .16s; }

.lc-rc-blue   { background: linear-gradient(135deg,#eff6ff,#dbeafe); border-left: 4px solid var(--lc-primary); }
.lc-rc-green  { background: linear-gradient(135deg,#f0fdf4,#dcfce7); border-left: 4px solid var(--lc-green);   }
.lc-rc-orange { background: linear-gradient(135deg,#fff7ed,#ffedd5); border-left: 4px solid var(--lc-orange);  }

.lc-dark .lc-rc-blue   { background: linear-gradient(135deg,#1e3a5f,#1e3a8a); }
.lc-dark .lc-rc-green  { background: linear-gradient(135deg,#14532d,#166534); }
.lc-dark .lc-rc-orange { background: linear-gradient(135deg,#7c2d12,#9a3412); }

.lc-rc-label {
    font-size:   .78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .5px;
    color:       var(--lc-text-muted);
}
.lc-rc-value {
    font-size:   1.55rem;
    font-weight: 800;
    color:       var(--lc-text);
    letter-spacing: -.5px;
}

/* ── Pie chart ── */
.lc-chart-wrap {
    display:         flex;
    align-items:     center;
    justify-content: center;
    flex-wrap:       wrap;
    gap:             28px;
    margin-bottom:   28px;
    background:      var(--lc-card);
    border:          1px solid var(--lc-border);
    border-radius:   var(--lc-radius);
    padding:         24px;
    box-shadow:      var(--lc-shadow-sm);
}
#am-pie, #df-pie, #bd-pie { max-width: 220px; max-height: 220px; }

.lc-legend {
    display:        flex;
    flex-direction: column;
    gap:            12px;
    font-size:      .88rem;
    font-weight:    600;
    color:          var(--lc-text);
}
.lc-legend > span { display: flex; align-items: center; gap: 8px; }
.lc-leg-dot {
    width:         14px;
    height:        14px;
    border-radius: 50%;
    flex-shrink:   0;
}

/* ── Amortization table ── */
.lc-table-section {
    background:    var(--lc-card);
    border:        1px solid var(--lc-border);
    border-radius: var(--lc-radius);
    overflow:      hidden;
    box-shadow:    var(--lc-shadow-sm);
}
.lc-table-header {
    display:         flex;
    align-items:     center;
    justify-content: space-between;
    flex-wrap:       wrap;
    gap:             10px;
    padding:         16px 20px;
    border-bottom:   1px solid var(--lc-border);
}
.lc-table-header h3 {
    font-size:   1rem;
    font-weight: 700;
    color:       var(--lc-text);
}
.lc-table-btns { display: flex; gap: 8px; flex-wrap: wrap; }

.lc-table-wrap {
    max-height: 420px;
    overflow-y: auto;
    overflow-x: auto;
}
.lc-table-wrap::-webkit-scrollbar { width: 6px; height: 6px; }
.lc-table-wrap::-webkit-scrollbar-track { background: var(--lc-bg); }
.lc-table-wrap::-webkit-scrollbar-thumb { background: var(--lc-border); border-radius: 3px; }

.lc-table {
    width:           100%;
    border-collapse: collapse;
    font-size:       .85rem;
}
.lc-table thead th {
    background:    var(--lc-bg);
    color:         var(--lc-text-muted);
    font-weight:   700;
    text-transform: uppercase;
    font-size:     .75rem;
    letter-spacing: .5px;
    padding:       10px 14px;
    text-align:    right;
    position:      sticky;
    top:           0;
    z-index:       1;
    border-bottom: 1px solid var(--lc-border);
}
.lc-table thead th:first-child { text-align: center; }
.lc-table tbody tr { transition: background var(--lc-transition); }
.lc-table tbody tr:hover { background: rgba(59,130,246,.05); }
.lc-table tbody tr:nth-child(even) { background: rgba(100,116,139,.04); }
.lc-table tbody tr:nth-child(even):hover { background: rgba(59,130,246,.07); }
.lc-table td {
    padding:    9px 14px;
    text-align: right;
    border-bottom: 1px solid var(--lc-border);
    color:      var(--lc-text);
}
.lc-table td:first-child { text-align: center; color: var(--lc-text-muted); font-weight: 600; }
.lc-table td.lc-td-interest { color: var(--lc-orange); }
.lc-table td.lc-td-balance  { font-weight: 700; }

/* ── Footer note ── */
.lc-footer-note {
    text-align:  center;
    font-size:   .78rem;
    color:       var(--lc-text-muted);
    margin-top:  24px;
    font-style:  italic;
}

/* ── Print styles ── */
@media print {
    .lc-tabs, .lc-actions, .lc-table-btns,
    .lc-header-controls, .lc-chart-wrap { display: none !important; }
    .lc-table-wrap { max-height: none !important; overflow: visible !important; }
    .lc-wrap { background: #fff !important; color: #000 !important; padding: 0 !important; }
    .lc-card, .lc-result-card, .lc-table-section { box-shadow: none !important; border: 1px solid #ccc !important; }
}

/* ── Responsive ── */
@media (max-width: 600px) {
    .lc-wrap    { padding: 16px 12px 24px; }
    .lc-title   { font-size: 1.25rem; }
    .lc-tab     { padding: 8px 12px; font-size: .82rem; }
    .lc-rc-value { font-size: 1.25rem; }
    .lc-grid-2  { grid-template-columns: 1fr; }
    .lc-result-grid { grid-template-columns: 1fr; }
    .lc-chart-wrap  { flex-direction: column; }
    .lc-table-header { flex-direction: column; align-items: flex-start; }
}