/* ==========================================================================
   CARPEL Environment Corporation — Bootstrap 5 Theme
   Primary:    #3CB043  (bright kelly green)
   Dark Green: #1B5E20  (deep forest green — navbar, sidebar)
   Background: #F4FAF4  (whisper green page background)
   Accent:     #E07820  (warm amber — warnings, offline banner)
   ========================================================================== */

:root {
    --carpel-primary:       #3CB043;
    --carpel-primary-dark:  #2E8E35;
    --carpel-dark-green:    #1B5E20;
    --carpel-dark-green-2:  #164A1A;
    --carpel-bg:            #F4FAF4;
    --carpel-amber:         #E07820;
    --carpel-amber-dark:    #C06010;
    --carpel-text:          #212121;
    --carpel-text-muted:    #5C7060;
    --carpel-border:        #C8E6C9;
    --carpel-white:         #FFFFFF;

    /* Override Bootstrap CSS variables */
    --bs-primary:           #3CB043;
    --bs-primary-rgb:       60, 176, 67;
    --bs-success:           #2E8E35;
    --bs-warning:           #E07820;
    --bs-warning-rgb:       224, 120, 32;
    --bs-body-bg:           #F4FAF4;
    --bs-body-color:        #212121;
    --bs-border-color:      #C8E6C9;
    --bs-link-color:        #3CB043;
    --bs-link-hover-color:  #2E8E35;
}

/* ── Body ── */
body {
    background-color: var(--carpel-bg);
    color: var(--carpel-text);
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

/* ── Navbar ── */
.carpel-navbar {
    background-color: var(--carpel-dark-green) !important;
    border-bottom: 3px solid var(--carpel-primary);
    box-shadow: 0 2px 8px rgba(0,0,0,0.25);
}
.carpel-navbar .navbar-brand {
    color: var(--carpel-white) !important;
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: 0.3px;
}
.carpel-navbar .navbar-brand img {
    height: 34px;
    margin-right: 8px;
}
.carpel-navbar .nav-link,
.carpel-navbar .navbar-text {
    color: rgba(255,255,255,0.9) !important;
}
.carpel-navbar .nav-link:hover {
    color: var(--carpel-white) !important;
}

/* ── Buttons ── */
.btn-primary {
    background-color: var(--carpel-primary);
    border-color: var(--carpel-primary);
    color: var(--carpel-white);
    font-weight: 500;
}
.btn-primary:hover, .btn-primary:focus {
    background-color: var(--carpel-primary-dark);
    border-color: var(--carpel-primary-dark);
    color: var(--carpel-white);
}
.btn-outline-primary {
    color: var(--carpel-primary);
    border-color: var(--carpel-primary);
}
.btn-outline-primary:hover {
    background-color: var(--carpel-primary);
    border-color: var(--carpel-primary);
    color: var(--carpel-white);
}
.btn-dark-green {
    background-color: var(--carpel-dark-green);
    border-color: var(--carpel-dark-green);
    color: var(--carpel-white);
}
.btn-dark-green:hover {
    background-color: var(--carpel-dark-green-2);
    border-color: var(--carpel-dark-green-2);
    color: var(--carpel-white);
}

/* ── Cards ── */
.card {
    border: 1px solid var(--carpel-border);
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(27,94,32,0.08);
    transition: box-shadow 0.2s, transform 0.15s;
}
.card:hover {
    box-shadow: 0 4px 16px rgba(27,94,32,0.15);
    transform: translateY(-1px);
}
.card-header {
    background-color: var(--carpel-dark-green);
    color: var(--carpel-white);
    border-radius: 9px 9px 0 0 !important;
    font-weight: 600;
}

/* ── Form controls ── */
.form-control:focus {
    border-color: var(--carpel-primary);
    box-shadow: 0 0 0 0.2rem rgba(60, 176, 67, 0.25);
}
.form-label {
    font-weight: 500;
    color: var(--carpel-dark-green);
}

/* ── Auth pages ── */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--carpel-dark-green) 0%, #2E7D32 50%, #388E3C 100%);
}
.auth-card {
    width: 100%;
    max-width: 420px;
    border-radius: 16px !important;
    box-shadow: 0 8px 32px rgba(0,0,0,0.3) !important;
    border: none !important;
}
.auth-logo {
    display: block;
    margin: 0 auto 12px;
    height: 80px;
}
.auth-title {
    text-align: center;
    color: var(--carpel-dark-green);
    font-weight: 700;
    margin-bottom: 4px;
}
.auth-subtitle {
    text-align: center;
    color: var(--carpel-text-muted);
    font-size: 0.875rem;
    margin-bottom: 24px;
}

/* ── Dashboard ── */
.dashboard-header {
    background: linear-gradient(90deg, var(--carpel-dark-green), #2E7D32);
    color: white;
    padding: 24px 32px;
    margin-bottom: 24px;
}
.workbook-card {
    cursor: pointer;
    min-height: 120px;
}
.workbook-card .card-body {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}
.workbook-icon {
    font-size: 2rem;
    color: var(--carpel-primary);
}
.workbook-name {
    font-weight: 600;
    font-size: 1rem;
    color: var(--carpel-text);
    margin-bottom: 4px;
    word-break: break-word;
}
.workbook-meta {
    font-size: 0.75rem;
    color: var(--carpel-text-muted);
}
.new-workbook-card {
    border: 2px dashed var(--carpel-primary) !important;
    background: transparent;
    color: var(--carpel-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 120px;
    cursor: pointer;
    font-weight: 600;
}
.new-workbook-card:hover {
    background-color: rgba(60,176,67,0.08) !important;
    border-color: var(--carpel-primary-dark) !important;
}

/* ── Editor layout ── */
.editor-layout {
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}
.formula-bar {
    display: flex;
    align-items: center;
    background: var(--carpel-white);
    border-bottom: 1px solid var(--carpel-border);
    padding: 4px 8px;
    gap: 8px;
    min-height: 36px;
    flex-shrink: 0;
}
.formula-bar .cell-address {
    width: 72px;
    font-family: 'Consolas', monospace;
    font-size: 0.825rem;
    font-weight: 600;
    color: var(--carpel-dark-green);
    border: 1px solid var(--carpel-border);
    border-radius: 4px;
    padding: 2px 6px;
    background: var(--carpel-bg);
}
.formula-bar .fx-label {
    color: var(--carpel-dark-green);
    font-style: italic;
    font-size: 0.85rem;
    font-weight: 600;
    padding: 0 4px;
}
.formula-bar .formula-input {
    flex: 1;
    font-family: 'Consolas', monospace;
    font-size: 0.85rem;
    border: 1px solid var(--carpel-border);
    border-radius: 4px;
    padding: 2px 8px;
}
.formula-bar .formula-input:focus {
    outline: none;
    border-color: var(--carpel-primary);
    box-shadow: 0 0 0 2px rgba(60,176,67,0.15);
}
.grid-container {
    flex: 1;
    overflow: hidden;
}
.status-bar {
    display: flex;
    align-items: center;
    background: var(--carpel-dark-green);
    color: rgba(255,255,255,0.9);
    padding: 2px 12px;
    font-size: 0.75rem;
    gap: 16px;
    min-height: 24px;
    flex-shrink: 0;
}
.status-bar span { margin-right: 8px; }

/* ── Sheet tab bar ── */
.sheet-tab-bar {
    display: flex;
    align-items: center;
    background: #E8F5E9;
    border-top: 1px solid var(--carpel-border);
    padding: 0 8px;
    gap: 2px;
    min-height: 36px;
    overflow-x: auto;
    flex-shrink: 0;
}
.sheet-tab {
    padding: 6px 16px;
    border: 1px solid var(--carpel-border);
    border-bottom: none;
    border-radius: 6px 6px 0 0;
    background: var(--carpel-bg);
    cursor: pointer;
    font-size: 0.8rem;
    white-space: nowrap;
    transition: background 0.15s;
    position: relative;
}
.sheet-tab:hover { background: #C8E6C9; }
.sheet-tab.active {
    background: var(--carpel-white);
    border-color: var(--carpel-primary);
    color: var(--carpel-dark-green);
    font-weight: 600;
    border-bottom: 2px solid var(--carpel-primary);
}
.sheet-tab-add {
    padding: 4px 10px;
    border: 1px dashed var(--carpel-primary);
    border-radius: 6px;
    background: transparent;
    color: var(--carpel-primary);
    cursor: pointer;
    font-size: 1rem;
    line-height: 1;
    margin-left: 4px;
}
.sheet-tab-add:hover { background: rgba(60,176,67,0.1); }

/* ── Offline banner ── */
.offline-banner {
    background-color: var(--carpel-amber);
    color: white;
    text-align: center;
    padding: 6px 16px;
    font-size: 0.8rem;
    font-weight: 500;
    flex-shrink: 0;
}
.offline-banner.syncing {
    background-color: var(--carpel-primary);
}

/* ── Toast notifications ── */
.toast-container-top {
    position: fixed;
    top: 70px;
    right: 16px;
    z-index: 1080;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.carpel-toast {
    min-width: 260px;
    border-radius: 8px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.18);
    animation: slideInRight 0.25s ease;
}
.carpel-toast.success { border-left: 4px solid var(--carpel-primary); }
.carpel-toast.error   { border-left: 4px solid #D32F2F; }
.carpel-toast.info    { border-left: 4px solid #1976D2; }
.carpel-toast.warning { border-left: 4px solid var(--carpel-amber); }

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(40px); }
    to   { opacity: 1; transform: translateX(0); }
}

/* ── Context menu ── */
.context-menu {
    position: fixed;
    background: white;
    border: 1px solid var(--carpel-border);
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    z-index: 2000;
    min-width: 160px;
    padding: 4px 0;
}
.context-menu-item {
    padding: 8px 16px;
    cursor: pointer;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 8px;
}
.context-menu-item:hover { background-color: #E8F5E9; color: var(--carpel-dark-green); }
.context-menu-separator { height: 1px; background: var(--carpel-border); margin: 4px 0; }

/* ── AG Grid CARPEL theme override ── */
.ag-theme-alpine {
    --ag-header-background-color:         #1B5E20;
    --ag-header-foreground-color:         #FFFFFF;
    --ag-header-column-separator-color:   rgba(255,255,255,0.3);
    --ag-header-column-separator-display: block;
    --ag-header-column-separator-height:  100%;
    --ag-header-column-separator-width:   1px;
    --ag-row-hover-color:                 #E8F5E9;
    --ag-selected-row-background-color:   #C8E6C9;
    --ag-range-selection-border-color:    #3CB043;
    --ag-input-focus-border-color:        #3CB043;
    --ag-border-color:                    #C8E6C9;
    --ag-odd-row-background-color:        #FAFFFE;
    --ag-font-family:                     'Segoe UI', system-ui, sans-serif;
    --ag-font-size:                       13px;
    --ag-cell-horizontal-border:          solid #C8E6C9;
}

/* Vertical cell borders (column lines) */
.ag-theme-alpine .ag-cell {
    border-right: 1px solid #C8E6C9 !important;
}
.ag-theme-alpine .ag-header-cell {
    border-right: 1px solid rgba(255,255,255,0.25) !important;
}
/* Pinned row-number column border */
.ag-theme-alpine .ag-pinned-left-cols-container .ag-cell {
    border-right: 2px solid #A5D6A7 !important;
}

/* ── Scrollbar styling ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--carpel-bg); }
::-webkit-scrollbar-thumb { background: #A5D6A7; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--carpel-primary); }

/* ── Utility ── */
.text-carpel  { color: var(--carpel-primary) !important; }
.text-dark-green { color: var(--carpel-dark-green) !important; }
.bg-carpel    { background-color: var(--carpel-primary) !important; }
.bg-dark-green{ background-color: var(--carpel-dark-green) !important; }
.border-carpel{ border-color: var(--carpel-primary) !important; }