* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --slate-950: #0a0f1a;
    --slate-900: #111827;
    --slate-800: #1e293b;
    --slate-700: #334155;
    --slate-600: #475569;
    --slate-500: #64748b;
    --slate-400: #94a3b8;
    --slate-300: #cbd5e1;
    --emerald-400: #34d399;
    --emerald-500: #10b981;
    --emerald-600: #059669;
    --teal-400: #2dd4bf;
    --teal-500: #14b8a6;
    --cyan-300: #67e8f9;
    --white: #f8fafc;
    --red-400: #f87171;
    --amber-400: #fbbf24;
    --violet-400: #a78bfa;
    --rose-400: #fb7185;
}

body {
    font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--slate-950);
    color: var(--slate-300);
    overflow-x: hidden;
    line-height: 1.6;
    min-height: 100vh;
}

h1, h2, h3, h4 {
    font-family: 'Space Grotesk', sans-serif;
    color: var(--white);
}

.grid-bg {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background-image:
        linear-gradient(rgba(16, 185, 129, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(16, 185, 129, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    z-index: 0;
}

.glow-orb {
    position: fixed;
    border-radius: 50%;
    filter: blur(120px);
    pointer-events: none;
    z-index: 0;
}

.glow-1 {
    width: 500px; height: 500px;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.1), transparent 70%);
    top: -100px; right: -100px;
}

.glow-2 {
    width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(20, 184, 166, 0.06), transparent 70%);
    top: 600px; left: -150px;
}

/* ─── Navigation ─────────────────────────────────────── */
.nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(10, 15, 26, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(51, 65, 85, 0.5);
}

.nav-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.brand-icon {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--emerald-500), var(--teal-500));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
}

.brand-text {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 18px;
    color: var(--white);
}

.brand-badge {
    font-size: 11px;
    font-weight: 600;
    color: var(--emerald-400);
    background: rgba(16, 185, 129, 0.1);
    padding: 2px 8px;
    border-radius: 4px;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.nav-tabs {
    display: flex;
    gap: 4px;
}

.nav-tab {
    background: none;
    border: none;
    color: var(--slate-400);
    font-family: 'DM Sans', sans-serif;
    font-size: 14px;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
}

.nav-tab:hover {
    color: var(--white);
    background: rgba(255, 255, 255, 0.05);
}

.nav-tab.active {
    color: var(--emerald-400);
    background: rgba(16, 185, 129, 0.1);
}

/* ─── Layout ─────────────────────────────────────────── */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 24px;
    position: relative;
    z-index: 1;
}

.view { display: none; }
.view.active { display: block; }

.toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 16px;
}

.page-title {
    font-size: 28px;
    font-weight: 700;
}

/* ─── Period Selector ────────────────────────────────── */
.period-selector {
    display: flex;
    gap: 4px;
    background: var(--slate-800);
    padding: 4px;
    border-radius: 10px;
}

.period-btn {
    background: none;
    border: none;
    color: var(--slate-400);
    font-family: 'DM Sans', sans-serif;
    font-size: 13px;
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 7px;
    cursor: pointer;
    transition: all 0.2s;
}

.period-btn:hover { color: var(--white); }

.period-btn.active {
    background: var(--emerald-500);
    color: var(--slate-950);
}

/* ─── KPI Cards ──────────────────────────────────────── */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.kpi-card {
    background: var(--slate-900);
    border: 1px solid var(--slate-800);
    border-radius: 12px;
    padding: 20px;
    transition: border-color 0.2s;
}

.kpi-card:hover {
    border-color: var(--slate-700);
}

.kpi-label {
    font-size: 13px;
    font-weight: 500;
    color: var(--slate-400);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.kpi-value {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 36px;
    font-weight: 700;
    color: var(--white);
    line-height: 1;
    margin-bottom: 4px;
}

.kpi-sub {
    font-size: 12px;
    color: var(--slate-500);
}

.kpi-sub .up { color: var(--emerald-400); }
.kpi-sub .down { color: var(--red-400); }

/* ─── Charts ─────────────────────────────────────────── */
.charts-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 16px;
    margin-bottom: 24px;
}

.chart-card {
    background: var(--slate-900);
    border: 1px solid var(--slate-800);
    border-radius: 12px;
    padding: 20px;
}

.chart-card.wide {
    /* takes 2fr */
}

.chart-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--slate-300);
    margin-bottom: 16px;
}

.chart-wrap {
    position: relative;
    height: 280px;
}

.donut-wrap {
    height: 280px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ─── Data Entry ─────────────────────────────────────── */
.entry-card {
    background: var(--slate-900);
    border: 1px solid var(--slate-800);
    border-radius: 12px;
    padding: 28px;
    margin-bottom: 24px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 13px;
    font-weight: 600;
    color: var(--slate-400);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.optional {
    font-weight: 400;
    text-transform: none;
    letter-spacing: 0;
    color: var(--slate-600);
}

.form-group select,
.form-group input,
.form-group textarea {
    background: var(--slate-800);
    border: 1px solid var(--slate-700);
    border-radius: 8px;
    color: var(--white);
    font-family: 'DM Sans', sans-serif;
    font-size: 14px;
    padding: 10px 12px;
    transition: border-color 0.2s;
}

.form-group select:focus,
.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--emerald-500);
}

.form-group textarea {
    resize: vertical;
}

/* Treatment Grid */
.treatment-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.treatment-input {
    background: var(--slate-800);
    border: 1px solid var(--slate-700);
    border-radius: 12px;
    padding: 16px;
    text-align: center;
    transition: border-color 0.2s;
}

.treatment-input:hover,
.treatment-input:focus-within {
    border-color: var(--slate-600);
}

.treatment-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 16px;
    margin-bottom: 8px;
}

.treatment-icon.trt {
    background: rgba(16, 185, 129, 0.15);
    color: var(--emerald-400);
}

.treatment-icon.hrt {
    background: rgba(167, 139, 250, 0.15);
    color: var(--violet-400);
}

.treatment-icon.glp1 {
    background: rgba(251, 191, 36, 0.15);
    color: var(--amber-400);
}

.treatment-icon.iv {
    background: rgba(103, 232, 249, 0.15);
    color: var(--cyan-300);
}

.treatment-input label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 8px;
}

.treatment-input input {
    background: var(--slate-900);
    border: 1px solid var(--slate-700);
    border-radius: 8px;
    color: var(--white);
    font-family: 'Space Grotesk', sans-serif;
    font-size: 24px;
    font-weight: 700;
    text-align: center;
    width: 100%;
    padding: 8px;
    transition: border-color 0.2s;
}

.treatment-input input:focus {
    outline: none;
    border-color: var(--emerald-500);
}

.treatment-label {
    display: block;
    font-size: 11px;
    color: var(--slate-500);
    margin-top: 6px;
}

/* Buttons */
.form-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--emerald-500), var(--teal-500));
    color: var(--slate-950);
    font-family: 'DM Sans', sans-serif;
    font-size: 14px;
    font-weight: 700;
    padding: 12px 28px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 20px rgba(16, 185, 129, 0.3);
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn-secondary {
    background: var(--slate-800);
    color: var(--slate-300);
    font-family: 'DM Sans', sans-serif;
    font-size: 13px;
    font-weight: 600;
    padding: 8px 16px;
    border: 1px solid var(--slate-700);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-secondary:hover {
    background: var(--slate-700);
    color: var(--white);
}

.form-status {
    font-size: 13px;
    color: var(--emerald-400);
}

.form-status.error {
    color: var(--red-400);
}

/* Recent entries */
.section-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
}

.recent-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.recent-entry {
    background: var(--slate-900);
    border: 1px solid var(--slate-800);
    border-radius: 10px;
    padding: 14px 18px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: border-color 0.2s;
}

.recent-entry:hover {
    border-color: var(--slate-700);
}

.recent-meta {
    display: flex;
    align-items: center;
    gap: 12px;
}

.recent-location {
    font-weight: 600;
    color: var(--white);
    font-size: 14px;
}

.recent-date {
    font-size: 13px;
    color: var(--slate-500);
}

.recent-counts {
    display: flex;
    gap: 12px;
}

.recent-count {
    font-size: 12px;
    font-weight: 600;
    padding: 3px 8px;
    border-radius: 4px;
}

.recent-count.trt { background: rgba(16, 185, 129, 0.1); color: var(--emerald-400); }
.recent-count.hrt { background: rgba(167, 139, 250, 0.1); color: var(--violet-400); }
.recent-count.glp1 { background: rgba(251, 191, 36, 0.1); color: var(--amber-400); }
.recent-count.iv { background: rgba(103, 232, 249, 0.1); color: var(--cyan-300); }

.recent-total {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 18px;
    color: var(--white);
    min-width: 40px;
    text-align: right;
}

/* ─── History / Table ────────────────────────────────── */
.history-filters {
    display: flex;
    gap: 8px;
    align-items: center;
}

.history-filters select,
.history-filters input {
    background: var(--slate-800);
    border: 1px solid var(--slate-700);
    border-radius: 8px;
    color: var(--white);
    font-family: 'DM Sans', sans-serif;
    font-size: 13px;
    padding: 8px 12px;
}

.table-wrap {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--slate-900);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--slate-800);
}

.data-table th {
    background: var(--slate-800);
    color: var(--slate-400);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 12px 16px;
    text-align: left;
}

.data-table td {
    padding: 12px 16px;
    border-top: 1px solid var(--slate-800);
    font-size: 14px;
}

.data-table tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

.data-table .total-cell {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    color: var(--white);
}

.data-table .notes-cell {
    color: var(--slate-500);
    font-size: 12px;
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.delete-btn {
    background: none;
    border: none;
    color: var(--slate-600);
    cursor: pointer;
    font-size: 14px;
    padding: 4px 8px;
    border-radius: 4px;
    transition: all 0.2s;
}

.delete-btn:hover {
    color: var(--red-400);
    background: rgba(248, 113, 113, 0.1);
}

.loading {
    color: var(--slate-500);
    font-size: 14px;
    padding: 20px;
    text-align: center;
}

.empty-state {
    color: var(--slate-500);
    font-size: 14px;
    text-align: center;
    padding: 40px 20px;
}

/* ─── Responsive ─────────────────────────────────────── */
@media (max-width: 1024px) {
    .charts-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .kpi-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .treatment-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .nav-inner {
        flex-direction: column;
        height: auto;
        padding: 12px 16px;
        gap: 8px;
    }

    .toolbar {
        flex-direction: column;
        align-items: flex-start;
    }

    .history-filters {
        flex-wrap: wrap;
    }

    .page-title {
        font-size: 22px;
    }
}

@media (max-width: 480px) {
    .kpi-grid {
        grid-template-columns: 1fr;
    }

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

    .recent-counts {
        display: none;
    }
}