/* ===== RESET & BASE ===== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #0f766e;
    --primary-dark: #115e59;
    --primary-light: #ccfbf1;
    --accent: #f59e0b;
    --dark: #1e293b;
    --gray: #64748b;
    --light: #f8fafc;
    --white: #ffffff;
    --error: #dc2626;
    --success: #16a34a;
    --radius: 12px;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.10);
    --border: #e2e8f0;
    --sidebar-w: 240px;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: "Segoe UI", Roboto, -apple-system, BlinkMacSystemFont,
                 "Helvetica Neue", Arial, sans-serif;
    color: var(--dark);
    line-height: 1.55;
    min-height: 100vh;
}

.hidden { display: none !important; }

a { color: inherit; text-decoration: none; }

/* ===== LOGIN ===== */
.login-view {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px 12px;
    background: linear-gradient(135deg, #0f766e 0%, #134e4a 50%, #1e293b 100%);
}

.login-card {
    background: var(--white);
    width: 100%;
    max-width: 400px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    animation: slideUp 0.4s ease-out;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(24px); }
    to   { opacity: 1; transform: translateY(0); }
}

.brand-header {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
    text-align: center;
    padding: 32px 20px 28px;
}

.logo-circle {
    width: 64px;
    height: 64px;
    background: rgba(255, 255, 255, 0.18);
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    font-weight: 800;
    letter-spacing: 1px;
    margin: 0 auto 14px;
}

.logo-circle.small {
    width: 42px;
    height: 42px;
    font-size: 1rem;
    border-width: 1.5px;
    margin: 0;
}

.brand-name {
    font-size: 1.75rem;
    font-weight: 800;
    letter-spacing: 0.5px;
}

.brand-name span { color: var(--accent); font-weight: 700; }

.tagline {
    font-size: 0.85rem;
    opacity: 0.85;
    margin-top: 4px;
    letter-spacing: 1.5px;
    text-transform: uppercase;
}

.login-form { padding: 24px 20px 28px; }

.login-form label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--gray);
    text-transform: uppercase;
    letter-spacing: 0.8px;
    margin: 4px 0 8px;
}

.login-form input {
    width: 100%;
    padding: 14px 16px;
    font-size: 1rem;
    border: 2px solid #cbd5e1;
    border-radius: var(--radius);
    outline: none;
    transition: border-color 0.25s, box-shadow 0.25s;
    background: var(--light);
    margin-bottom: 16px;
}

.login-form input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(15, 118, 110, 0.15);
    background: var(--white);
}

.error-message {
    margin-top: 14px;
    padding: 12px;
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: var(--error);
    font-size: 0.88rem;
    font-weight: 600;
    text-align: center;
    border-radius: 8px;
}

.btn-connect {
    width: 100%;
    margin-top: 16px;
    padding: 15px;
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: var(--white);
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: transform 0.15s, box-shadow 0.25s, opacity 0.2s;
    box-shadow: 0 4px 14px rgba(15, 118, 110, 0.35);
}

.btn-connect:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(15, 118, 110, 0.45);
}

.btn-connect:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(15, 118, 110, 0.3);
}

.btn-connect.inline { margin-top: 0; width: auto; min-width: 200px; }

.btn-connect:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* ===== APP LAYOUT ===== */
.app {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: var(--sidebar-w);
    flex-shrink: 0;
    background: var(--dark);
    color: var(--white);
    display: flex;
    flex-direction: column;
    position: sticky;
    top: 0;
    height: 100vh;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px 18px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.sidebar-brand .brand-name { font-size: 1.15rem; line-height: 1.2; }
.sidebar-brand .tagline {
    font-size: 0.68rem;
    margin-top: 0;
    opacity: 0.6;
    letter-spacing: 1px;
}

.sidebar-nav {
    flex: 1;
    padding: 14px 10px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    overflow-y: auto;
}

.nav-item {
    display: block;
    padding: 11px 14px;
    border-radius: 8px;
    font-size: 0.92rem;
    font-weight: 600;
    color: #cbd5e1;
    transition: background 0.15s, color 0.15s;
}

.nav-item:hover { background: rgba(255, 255, 255, 0.06); color: var(--white); }

.nav-item.active {
    background: var(--primary);
    color: var(--white);
}

.sidebar-footer {
    padding: 16px 14px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.router-status {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.82rem;
    color: #94a3b8;
}

.dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: #94a3b8;
    flex-shrink: 0;
}

.dot.on  { background: var(--success); box-shadow: 0 0 6px rgba(22, 163, 74, 0.7); }
.dot.err { background: var(--error);  box-shadow: 0 0 6px rgba(220, 38, 38, 0.7); }

.btn-logout {
    width: 100%;
    padding: 10px;
    font-size: 0.85rem;
    font-weight: 600;
    color: #fecaca;
    background: rgba(220, 38, 38, 0.15);
    border: 1px solid rgba(220, 38, 38, 0.4);
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.15s;
}

.btn-logout:hover { background: rgba(220, 38, 38, 0.28); }

/* ===== MAIN ===== */
.main {
    flex: 1;
    min-width: 0;
    background: var(--light);
}

.topbar {
    background: var(--white);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    position: sticky;
    top: 0;
    z-index: 20;
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
}

.topbar h1 { font-size: 1.3rem; color: var(--dark); }

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: 0 9px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    flex-shrink: 0;
}

.nav-toggle-bar {
    display: block;
    height: 2px;
    width: 100%;
    background: var(--dark);
    border-radius: 2px;
    transition: transform 0.2s, opacity 0.2s;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-scrim {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.5);
    z-index: 25;
}

.topbar-right { display: flex; align-items: center; gap: 12px; }

.logged-in-as {
    font-size: 0.85rem;
    color: var(--gray);
}

.logged-in-as strong { color: var(--primary-dark); }

.btn-icon {
    width: 38px;
    height: 38px;
    border: 1px solid var(--border);
    background: var(--white);
    border-radius: 8px;
    font-size: 1.1rem;
    color: var(--gray);
    cursor: pointer;
    transition: color 0.15s, border-color 0.15s;
}

.btn-icon:hover { color: var(--primary); border-color: var(--primary); }

.content { padding: 24px; max-width: 1100px; margin: 0 auto; }

/* ===== CARDS & STATS ===== */
.card {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 22px;
    margin-bottom: 22px;
}

.card h2 {
    font-size: 1.02rem;
    color: var(--primary-dark);
    text-transform: uppercase;
    letter-spacing: 0.6px;
    margin-bottom: 16px;
}

.card-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 16px;
}

.card-head h2 { margin-bottom: 0; }

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 22px;
}

.stat-card {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 20px;
    border-top: 4px solid var(--primary);
}

.stat-card:nth-child(2) { border-top-color: var(--success); }
.stat-card:nth-child(3) { border-top-color: var(--error); }
.stat-card:nth-child(4) { border-top-color: var(--gray); }
.stat-card:nth-child(5) { border-top-color: var(--accent); }

.stat-card .stat-label {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--gray);
    text-transform: uppercase;
    letter-spacing: 0.8px;
}

.stat-card .stat-value {
    font-size: 2.1rem;
    font-weight: 800;
    color: var(--dark);
    margin-top: 4px;
}

/* ===== FORMS ===== */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
}

.field.full { grid-column: 1 / -1; }
.field.align-end { display: flex; align-items: flex-end; }

.field label {
    display: block;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--gray);
    text-transform: uppercase;
    letter-spacing: 0.7px;
    margin-bottom: 8px;
}

.field input,
.field select,
.toolbar input,
.toolbar select {
    width: 100%;
    padding: 12px 14px;
    font-size: 0.95rem;
    border: 2px solid #cbd5e1;
    border-radius: 10px;
    outline: none;
    transition: border-color 0.25s, box-shadow 0.25s;
    background: var(--light);
    color: var(--dark);
}

.field input:focus,
.field select:focus,
.toolbar input:focus,
.toolbar select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(15, 118, 110, 0.15);
    background: var(--white);
}

/* ===== TABLES ===== */
.table-wrap {
    overflow-x: auto;
    border: 1px solid var(--border);
    border-radius: 10px;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.data-table thead {
    background: var(--primary);
    color: var(--white);
}

.data-table th,
.data-table td {
    padding: 11px 14px;
    text-align: left;
    white-space: nowrap;
}

.data-table tbody tr:nth-child(even) { background: var(--light); }
.data-table tbody tr:nth-child(odd) { background: var(--white); }
.data-table tbody tr:hover { background: var(--primary-light); }

.data-table .col-actions { width: 150px; text-align: right; }

.pins-table td { font-weight: 700; letter-spacing: 1px; font-family: "Consolas", "Courier New", monospace; }
.pins-table th:nth-child(2) { text-align: center; }
.pins-table td:nth-child(2) { text-align: center; }

.table-footer {
    margin-top: 10px;
    font-size: 0.82rem;
    color: var(--gray);
}

/* ===== BADGES ===== */
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 0.74rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.4px;
}

.badge.online   { background: #dcfce7; color: var(--success); }
.badge.offline  { background: #e2e8f0; color: var(--gray); }
.badge.disabled { background: #fee2e2; color: var(--error); }
.badge.pending  { background: #fef9c3; color: #a16207; }
.badge.approved { background: #dcfce7; color: var(--success); }
.badge.rejected { background: #fee2e2; color: var(--error); }

/* ===== BUTTONS (secondary/small) ===== */
.btn-secondary {
    padding: 9px 14px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary-dark);
    background: var(--primary-light);
    border: 1px solid var(--primary);
    border-radius: 8px;
    cursor: pointer;
    transition: transform 0.15s, background 0.15s;
}

.btn-secondary:hover { background: #99f6e4; transform: translateY(-1px); }

.btn-sm {
    padding: 6px 12px;
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: 7px;
    border: 1px solid transparent;
    cursor: pointer;
    transition: background 0.15s, transform 0.15s;
}

.btn-sm:hover { transform: translateY(-1px); }

.btn-enable  { background: #dcfce7; color: var(--success); border-color: #86efac; }
.btn-enable:hover  { background: #bbf7d0; }
.btn-disable { background: #fef9c3; color: #a16207; border-color: #fde047; }
.btn-disable:hover { background: #fef08a; }
.btn-delete  { background: #fee2e2; color: var(--error); border-color: #fca5a5; }
.btn-delete:hover  { background: #fecaca; }

.actions { display: flex; gap: 8px; }

/* ===== TOOLBAR ===== */
.toolbar {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    align-items: center;
}

.toolbar input { width: 220px; }
.toolbar select { width: auto; }

/* ===== TOAST ===== */
.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: var(--dark);
    color: var(--white);
    padding: 13px 18px;
    border-radius: 10px;
    font-size: 0.9rem;
    font-weight: 600;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
    z-index: 100;
    animation: slideUp 0.25s ease-out;
    max-width: 360px;
}

.toast.success { border-left: 4px solid var(--success); }
.toast.error   { border-left: 4px solid var(--error); }

/* ===== LOADING / EMPTY ===== */
.empty-row td {
    text-align: center;
    color: var(--gray);
    padding: 24px;
    font-style: italic;
}
/* ===== RESPONSIVE ===== */

/* Narrow desktop / large tablet */
@media (max-width: 1024px) {
    :root { --sidebar-w: 210px; }
    .content { padding: 20px; }
    .stat-card .stat-value { font-size: 1.8rem; }
}

/* Tablet and below: drawer nav, stacked card tables, touch-sized controls */
@media (max-width: 860px) {
    .app { flex-direction: column; }

    .nav-toggle { display: flex; width: 44px; height: 44px; }

    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        width: 270px;
        max-width: 84vw;
        height: 100vh;
        max-height: 100vh;
        z-index: 30;
        transform: translateX(-100%);
        transition: transform 0.25s ease-out;
        box-shadow: 0 0 40px rgba(0, 0, 0, 0.35);
        padding-top: env(safe-area-inset-top);
    }

    /* Drawer open state, toggled by the hamburger */
    .app.nav-open .sidebar { transform: translateX(0); }
    .app.nav-open .nav-scrim { display: block; }

    .sidebar-nav { padding: 14px 10px; }

    .nav-item {
        padding: 13px 14px;
        font-size: 0.95rem;
    }

    .content { padding: 16px; }
    .card { padding: 18px; margin-bottom: 18px; }
    .stat-grid { gap: 12px; margin-bottom: 18px; }
    .form-grid { gap: 14px; }

    /* Single-column forms and full-width controls on touch screens */
    .form-grid { grid-template-columns: 1fr; }
    .btn-connect.inline { width: 100%; min-width: 0; }
    .field.align-end { display: block; }

    .card-head { flex-direction: column; align-items: stretch; gap: 12px; }
    .toolbar { flex-direction: column; align-items: stretch; }
    .toolbar input,
    .toolbar select,
    .toolbar button { width: 100%; }
    .toolbar select { flex: none; }

    /* Comfortable touch targets (tablets are touch too) */
    .btn-secondary,
    .btn-icon,
    .btn-sm { min-height: 44px; padding: 10px 16px; }
    .btn-icon { width: 44px; }

    .toast {
        left: 12px;
        right: 12px;
        bottom: 12px;
        max-width: none;
        text-align: center;
    }

    /* ---- Tables become stacked cards ----
       Each cell renders as "label ......... value" using data-label
       attributes set by app.js, so no column headers are needed.
       .keep-table / .keep-wrap opt out (narrow tables stay as tables). */
    .data-table:not(.keep-table) thead { display: none; }

    .data-table:not(.keep-table),
    .data-table:not(.keep-table) tbody,
    .data-table:not(.keep-table) tr,
    .data-table:not(.keep-table) td { display: block; width: 100%; }

    .data-table:not(.keep-table) tr {
        background: var(--white);
        border: 1px solid var(--border);
        border-radius: 10px;
        padding: 6px 0;
        margin-bottom: 10px;
    }

    .data-table:not(.keep-table) tr:last-child { margin-bottom: 0; }
    .data-table:not(.keep-table) tbody tr:nth-child(even),
    .data-table:not(.keep-table) tbody tr:nth-child(odd) { background: var(--white); }
    .data-table:not(.keep-table) tbody tr:hover { background: var(--white); }

    .data-table:not(.keep-table) td {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 14px;
        padding: 8px 14px;
        text-align: right;
        white-space: normal;
        word-break: break-word;
        border: none;
    }

    .data-table:not(.keep-table) td::before {
        content: attr(data-label);
        flex: 0 0 auto;
        font-size: 0.7rem;
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: 0.6px;
        color: var(--gray);
        text-align: left;
    }

    /* First cell reads as the card heading */
    .data-table:not(.keep-table) td.cell-main {
        font-size: 1rem;
        padding-bottom: 10px;
        margin-bottom: 4px;
        border-bottom: 1px solid var(--border);
    }

    .data-table:not(.keep-table) td.cell-main::before { display: none; }

    .data-table:not(.keep-table) td.col-actions {
        justify-content: flex-end;
        flex-wrap: wrap;
        gap: 8px;
        margin-top: 4px;
        padding-top: 12px;
        border-top: 1px solid var(--border);
    }

    .data-table:not(.keep-table) td.col-actions::before { margin-right: auto; }
    .data-table:not(.keep-table) .col-actions { width: auto; }

    .data-table:not(.keep-table) .empty-row td { justify-content: center; text-align: center; }
    .data-table:not(.keep-table) .empty-row td::before { display: none; }

    .table-wrap:not(.keep-wrap) {
        border: none;
        border-radius: 0;
        overflow: visible;
    }
}

/* Phone: 2-up stats, tighter cards */
@media (max-width: 720px) {
    .topbar { padding: 12px 14px; }
    .topbar h1 { font-size: 1.12rem; }
    .logged-in-as { font-size: 0.78rem; }
    .content { padding: 14px; }

    .card { padding: 16px; border-radius: 10px; }
    .card h2 { font-size: 0.95rem; }

    .stat-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .stat-card { padding: 14px; border-top-width: 3px; }
    .stat-card .stat-value { font-size: 1.6rem; }
    .stat-card .stat-label { font-size: 0.68rem; letter-spacing: 0.5px; }
}

/* Small phone */
@media (max-width: 480px) {
    .logged-in-as { display: none; }
    .login-form { padding: 20px 16px 24px; }
    .brand-header { padding: 26px 16px 22px; }
    .logo-circle { width: 54px; height: 54px; font-size: 1.2rem; }
    .brand-name { font-size: 1.45rem; }
    .actions { flex-wrap: wrap; }
}

/* Very small phone: long numbers never clip */
@media (max-width: 360px) {
    .stat-grid { grid-template-columns: 1fr; }
    .stat-card .stat-value { font-size: 1.4rem; }
    .btn-sm { width: 100%; }
    .data-table:not(.keep-table) td.col-actions { flex-direction: column; align-items: stretch; }
    .data-table:not(.keep-table) td.col-actions::before { margin-right: 0; text-align: center; }
}

/* Wide desktop: use the extra room */
@media (min-width: 1500px) {
    .content { max-width: 1280px; }
}