:root {
    --bg-dark: #231c1d;
    --bg-card: #2d2526;
    --bg-hover: #3a3032;
    --border: #3d3335;
    --text: #e8e4e4;
    --text-muted: #a39e9e;
    --accent: #5ab031;
    --accent-hover: #248b7e;
    --accent-dim: rgba(90, 176, 49, 0.2);
    --success: #5ab031;
    --success-dim: rgba(90, 176, 49, 0.2);
    --warning: #f59e0b;
    --danger: #ef4444;
    --radius: 10px;
    --shadow: 0 4px 24px rgba(0,0,0,0.3);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    min-height: 100vh;
    font-family: 'Archivo', sans-serif;
    background: var(--bg-dark);
    color: var(--text);
    line-height: 1.5;
}
.app {
    max-width: 1280px;
    margin: 0 auto;
    padding: 1.5rem;
}
header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}
.logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(90deg, var(--accent), var(--accent-hover));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.logo-wrap {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}
.logo-img {
    height: 36px;
    width: auto;
    display: block;
    object-fit: contain;
}
.logo-tagline {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    letter-spacing: 0.02em;
    white-space: nowrap;
}
.nav-tabs {
    display: flex;
    gap: 0.25rem;
}
.nav-tabs button {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-muted);
    border-radius: var(--radius);
    cursor: pointer;
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 500;
}
.nav-tabs button:hover { background: var(--bg-hover); color: var(--text); }
.nav-tabs button.active { background: var(--accent-dim); color: var(--accent); border-color: var(--accent); }
.nav-tabs button.active:hover { color: var(--accent-hover); border-color: var(--accent-hover); }
.header-nav-wrap { display: flex; align-items: center; gap: 0.5rem; }
.header-add-mobile { display: none; position: relative; }
.btn-add-plus {
    width: 2.25rem;
    height: 2.25rem;
    border-radius: 50%;
    border: 1px solid var(--accent);
    background: var(--accent-dim);
    color: var(--accent);
    font-size: 1.25rem;
    font-weight: 700;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    flex-shrink: 0;
}
.btn-add-plus:hover { background: var(--accent); color: #fff; }
.header-add-menu {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 0.35rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 0.35rem;
    min-width: 160px;
    z-index: 50;
}
.header-add-menu.open { display: flex; flex-direction: column; gap: 0.25rem; }
.header-add-option {
    padding: 0.6rem 0.9rem;
    text-align: left;
    border: none;
    background: transparent;
    color: var(--text);
    font-family: inherit;
    font-size: 0.9rem;
    border-radius: 6px;
    cursor: pointer;
}
.header-add-option:hover { background: var(--bg-hover); color: var(--accent); }
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.2rem;
    border: none;
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.15s, background-color 0.2s, color 0.2s, border-color 0.2s;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-secondary { background: var(--bg-hover); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--accent-dim); border-color: var(--accent); color: var(--accent); }
.btn-ghost { background: transparent; color: var(--accent); border: 1px solid var(--accent); }
.btn-ghost:hover { background: var(--accent-dim); color: var(--accent-hover); border-color: var(--accent-hover); }
.btn-danger { background: rgba(239,68,68,0.2); color: #f87171; border: 1px solid rgba(239,68,68,0.4); }
.btn-danger:hover { background: rgba(239,68,68,0.35); }
.dashboard-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}
.dash-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 1.25rem;
    box-shadow: var(--shadow), 0 0 0 1px rgba(255,255,255,0.03);
    position: relative;
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.dash-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--accent);
    opacity: 0.6;
}
.dash-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(0,0,0,0.35), 0 0 0 1px rgba(255,255,255,0.04);
}
.dash-card .label { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-muted); margin-bottom: 0.35rem; font-weight: 600; }
.dash-card .value { font-size: 1.6rem; font-weight: 700; color: var(--text); letter-spacing: -0.02em; }
.dash-card small { font-size: 0.8rem; opacity: 0.9; }
.dash-card .value.highlight { color: var(--accent); font-size: 0.95rem; font-weight: 600; line-height: 1.2; }
.dash-card[data-stage-color]::before { background: var(--dash-accent, var(--accent)); opacity: 0.85; }
.dash-card-pipeline::before { background: var(--accent); opacity: 0.5; }
.filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    align-items: center;
}
.filters select {
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border);
    background: var(--bg-card);
    color: var(--text);
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 0.9rem;
}
.filters select:focus { outline: none; border-color: var(--accent); }
.filter-search {
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border);
    background: var(--bg-card);
    color: var(--text);
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 0.9rem;
    min-width: 200px;
}
.filter-search::placeholder { color: var(--text-muted); }
.filter-search:focus { outline: none; border-color: var(--accent); }
.section { display: none; }
.section.active { display: block; }
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table { width: 100%; border-collapse: collapse; min-width: 600px; }
th, td { padding: 0.75rem 1rem; text-align: left; border-bottom: 1px solid var(--border); vertical-align: middle; }
th { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-muted); font-weight: 600; }
tr:hover { background: var(--bg-hover); }
tr:last-child td { border-bottom: none; }
.badge {
    display: inline-block;
    padding: 0.25rem 0.6rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
}
.amount { font-weight: 600; color: var(--success); }
.actions-cell { white-space: nowrap; }
.actions-cell button {
    padding: 0.4rem 0.65rem;
    margin-right: 0.25rem;
    border: none;
    background: transparent;
    color: var(--text-muted);
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.85rem;
    transition: background 0.15s, color 0.15s;
}
.actions-cell button:hover { background: var(--bg-hover); color: var(--accent); }
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.65);
    backdrop-filter: blur(4px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 100;
    padding: 1rem;
}
.modal-overlay.open { display: flex; }
.modal {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    max-width: 520px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 24px 48px rgba(0,0,0,0.4);
}
.modal {
    position: relative;
}
.modal header {
    padding: 1.25rem 3rem 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 0;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.75rem;
}
.modal header h2 { font-size: 1.25rem; font-weight: 600; flex: 1; min-width: 0; padding-right: 0.5rem; }
.modal-close {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    width: 2rem;
    height: 2rem;
    padding: 0;
    border: none;
    background: transparent;
    color: #fff;
    font-size: 1.5rem;
    line-height: 1;
    cursor: pointer;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.15s, color 0.15s;
    flex-shrink: 0;
}
.modal-close:hover {
    background: var(--bg-hover);
    color: #fff;
}
.modal-close:focus {
    outline: none;
}
.modal .body { padding: 1.5rem; }
.modal .footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
}
.form-group { margin-bottom: 1rem; }
.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 0.35rem;
}
.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 0.6rem 0.75rem;
    border: 1px solid var(--border);
    background: var(--bg-dark);
    color: var(--text);
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 0.95rem;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
}
.form-group textarea { min-height: 80px; resize: vertical; }
.form-group input[type="date"]::-webkit-calendar-picker-indicator {
    filter: invert(1);
    opacity: 0.9;
    cursor: pointer;
}
.empty-state {
    text-align: center;
    padding: 3rem 1.5rem;
    color: var(--text-muted);
}
.empty-state p { margin-bottom: 1rem; }

.opp-detail-modal .modal { max-width: 620px; }
.opp-detail-modal .modal header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}
.opp-detail-modal .modal header h2 { font-size: 1.15rem; font-weight: 600; line-height: 1.3; flex: 1; min-width: 0; }
.opp-detail-modal .detail-stage-badge { flex-shrink: 0; }
.opp-detail-body { padding: 0 1.5rem 1.5rem; }
.opp-detail-section { margin-bottom: 1.5rem; }
.opp-detail-section:last-of-type { margin-bottom: 0; }
.opp-detail-section-title { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-muted); margin-bottom: 0.6rem; font-weight: 600; }
.opp-detail-grid { display: grid; grid-template-columns: 110px 1fr; gap: 0.4rem 1rem; font-size: 0.9rem; align-items: baseline; }
.opp-detail-grid .opp-detail-k { color: var(--text-muted); font-size: 0.85rem; }
.opp-detail-grid .opp-detail-v { font-weight: 500; word-break: break-word; }
.opp-detail-desc { background: var(--bg-dark); border-radius: var(--radius); padding: 0.9rem 1rem; font-size: 0.9rem; line-height: 1.5; color: var(--text); border: 1px solid var(--border); }
.opp-detail-value { font-size: 1.1rem; font-weight: 700; color: var(--success); }
.opp-detail-prob-wrap { display: flex; align-items: center; gap: 0.75rem; }
.opp-detail-prob-bar-wrap { flex: 1; height: 10px; background: var(--bg-hover); border-radius: 999px; overflow: hidden; }
.opp-detail-prob-bar-fill { height: 100%; border-radius: 999px; background: linear-gradient(90deg, #ef4444 0%, #f59e0b 40%, #10b981 100%); transition: width 0.35s ease; min-width: 2px; }
.opp-detail-prob-pct { font-weight: 700; font-size: 0.95rem; min-width: 2.5rem; text-align: right; }
.opp-detail-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-top: 1.25rem; padding-top: 1.25rem; border-top: 1px solid var(--border); }
.detail-grid {
    display: grid;
    gap: 1.5rem;
    padding: 1.5rem;
}
.detail-row { display: grid; grid-template-columns: 140px 1fr; gap: 0.5rem; align-items: start; }
.detail-row .label { color: var(--text-muted); font-size: 0.85rem; }
.detail-row .value { font-weight: 500; }
.loading { text-align: center; padding: 2rem; color: var(--text-muted); }
.toast {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    padding: 0.75rem 1.25rem;
    background: var(--bg-card);
    border: 1px solid var(--success);
    border-radius: var(--radius);
    color: var(--success);
    font-size: 0.9rem;
    box-shadow: var(--shadow);
    z-index: 200;
    transform: translateY(100px);
    opacity: 0;
    transition: transform 0.3s, opacity 0.3s;
}
.toast.show { transform: translateY(0); opacity: 1; }
.toast.error { border-color: var(--danger); color: #f87171; }

.app-footer {
    margin-top: 3rem;
    padding: 1.5rem 1.5rem 2rem;
    border-top: 1px solid var(--border);
    background: var(--bg-card);
}
.app-footer-inner {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}
.app-footer-logo {
    height: 28px !important;
    max-height: 28px !important;
    max-width: 120px !important;
    width: auto !important;
    opacity: 0.9;
    display: block;
    object-fit: contain;
}
.app-footer img.app-footer-logo {
    height: 28px !important;
    max-width: 120px !important;
}
.app-footer-links {
    display: flex;
    gap: 1.25rem;
    flex-wrap: wrap;
}
.app-footer-links a {
    color: var(--text-muted);
    font-size: 0.85rem;
    text-decoration: none;
}
.app-footer-links a:hover {
    color: var(--accent);
}

.welcome-screen {
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: var(--bg-dark);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}
.welcome-screen.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}
.welcome-screen .welcome-logo {
    max-width: 280px;
    width: 100%;
    height: auto;
    object-fit: contain;
    margin-bottom: 2.5rem;
    animation: welcomeFadeIn 0.8s ease-out;
}
.welcome-screen .welcome-tagline {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    letter-spacing: 0.05em;
    animation: welcomeFadeIn 0.8s ease-out 0.2s both;
}
.welcome-screen .welcome-btn {
    padding: 0.75rem 2rem;
    font-size: 1rem;
    animation: welcomeFadeIn 0.8s ease-out 0.4s both;
}
@keyframes welcomeFadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

.charts-toggle-wrap { margin-bottom: 1rem; }
.charts-toggle-wrap .btn { font-size: 0.85rem; }
.charts-block {
    display: none;
    margin-bottom: 2rem;
}

@media (max-width: 768px) {
    .app { padding: 1rem; }
    header { flex-direction: column; align-items: stretch; gap: 0.75rem; }
    header .logo-wrap { justify-content: center; }
    .header-nav-wrap { justify-content: center; flex-wrap: wrap; }
    .nav-tabs { justify-content: center; flex-wrap: wrap; }
    .header-btns-desktop { display: none !important; }
    .header-add-mobile { display: flex; align-items: center; }
    .filters { gap: 0.5rem; }
    .filters select { width: 50%; min-width: 0; flex: 0 0 calc(50% - 0.375rem); box-sizing: border-box; }
    .filter-search { width: 50%; min-width: 0; flex: 0 0 calc(50% - 0.375rem); box-sizing: border-box; }
    .filters .btn { flex: 0 0 100%; }
    .dashboard-cards { grid-template-columns: repeat(2, 1fr); gap: 0.75rem; }
    .dash-card { padding: 1rem; aspect-ratio: 1; display: flex; flex-direction: column; justify-content: center; align-items: center; text-align: center; }
    .dash-card .label { margin-bottom: 0.35rem; }
    .dash-card .value { font-size: 1.2rem; }
    .dash-card .value.highlight { font-size: 0.85rem; }
    .dash-card small { font-size: 0.7rem; margin-top: 0.2rem; }
    th, td { padding: 0.5rem 0.6rem; font-size: 0.9rem; }
    .modal { max-width: 100%; margin: 0.5rem; max-height: 95vh; }
    .modal .body, .modal header { padding: 1rem 1.25rem; }
    .opp-detail-grid { grid-template-columns: 90px 1fr; gap: 0.35rem 0.75rem; font-size: 0.85rem; }
    .chart-donut-wrap { flex-direction: column; gap: 1rem; }
    .app-footer { margin-top: 2rem; padding: 1.25rem 1rem; }
    .app-footer-inner { flex-direction: column; text-align: center; }
    .app-footer-links { justify-content: center; }
}
@media (max-width: 480px) {
    .app { padding: 0.75rem; }
    .logo-img { height: 28px; }
    .logo-tagline { font-size: 0.7rem; }
    .nav-tabs button { padding: 0.4rem 0.7rem; font-size: 0.85rem; }
    .btn { padding: 0.5rem 1rem; font-size: 0.85rem; }
    .dashboard-cards { grid-template-columns: repeat(2, 1fr); gap: 0.6rem; }
    .dash-card .value { font-size: 1.05rem; }
    .dash-card .value.highlight { font-size: 0.75rem; }
    .app-footer { padding: 1rem 0.75rem; margin-top: 2rem; }
    .app-footer-logo { height: 24px !important; max-width: 100px !important; }
    .app-footer-links { gap: 1rem; }
    #btnExportCsv { flex: 0 0 100%; }
    .actions-cell button { padding: 0.3rem 0.5rem; font-size: 0.8rem; margin-right: 0.15rem; }
    .opp-detail-modal .modal header { flex-direction: column; }
    .opp-detail-grid { grid-template-columns: 1fr; }
    .opp-detail-grid .opp-detail-k { margin-top: 0.25rem; }
    .opp-detail-grid .opp-detail-k:first-child { margin-top: 0; }
}