.dashboard-cylinder-card[data-gas="O2"] .progress .progress-bar,
.dashboard-cylinder-item[data-gas="O2"] .progress .progress-bar {
    background-color: var(--gas-o2) !important;
}

/* Modal scrolling fixes for small screens */
/* Ensure modal-body can scroll when content is taller than the viewport */
.modal-dialog-scrollable .modal-content {
    max-height: calc(100vh - 120px);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.modal-dialog-scrollable .modal-body {
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

@media (max-width: 767.98px) {
    .modal-dialog-scrollable .modal-content {
        max-height: calc(100vh - 80px);
    }

    /* reduce dialog margins on very small screens so body has room to scroll */
    .modal-dialog {
        margin: 0.5rem;
        max-width: calc(100% - 1rem);
    }

    /* prefer top-aligned modals on very small screens to improve usability */
    .modal.modal-show .modal-dialog,
    .modal.show .modal-dialog {
        align-items: flex-start;
    }
}

/* Fallback: ensure modal itself scrolls if body can't (very edge cases) */
.modal {
    /* ensure the modal container can scroll if needed (keeps scrollbar visible on small viewports) */
    overflow-y: auto !important;
}

.modal-dialog-scrollable .modal-body {
    flex: 1 1 auto; /* ensure body expands to take available space */
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-gutter: stable;
    padding-right: 6px; /* give room for visible scrollbar */
}

/* WebKit custom scrollbar hint to make it visible on Windows/Chromium */
.modal-dialog-scrollable .modal-body::-webkit-scrollbar {
    width: 10px;
}
.modal-dialog-scrollable .modal-body::-webkit-scrollbar-thumb {
    background: rgba(0,0,0,0.35);
    border-radius: 6px;
}

/* if the page hides native scrollbars, provide a visual cue (thin right border) */
.modal-dialog-scrollable .modal-content {
    box-shadow: inset -8px 0 8px -8px rgba(0,0,0,0.04);
}

/* Strong overrides: force modal to occupy viewport and allow inner scrolling */
.modal.show, .modal.fade.show {
    position: fixed !important;
    top: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    left: 0 !important;
    height: 100vh !important;
    width: 100% !important;
    overflow-y: auto !important;
    -webkit-overflow-scrolling: touch !important;
}

.modal.show .modal-dialog,
.modal.fade.show .modal-dialog {
    display: flex !important;
    align-items: flex-start !important;
    min-height: 100% !important;
    margin: 0.5rem auto !important;
}

.modal-dialog-scrollable .modal-content {
    max-height: calc(100vh - 96px) !important;
    display: flex !important;
    flex-direction: column !important;
    overflow: hidden !important;
}

.modal-dialog-scrollable .modal-body {
    overflow-y: auto !important;
    -webkit-overflow-scrolling: touch !important;
    padding-right: 10px !important;
}

/* Visual hint for scrollable content (temporary during debugging) */
.modal-dialog-scrollable .modal-body.has-scroll-hint {
    border-right: 3px solid rgba(0,0,0,0.03);
}

.dashboard-cylinder-card[data-gas="N2O"] .progress .progress-bar,
.dashboard-cylinder-item[data-gas="N2O"] .progress .progress-bar {
    background-color: var(--gas-n2o) !important;
}

/* ensure badge contrast inside dashboard items */
.dashboard-cylinder-item[data-gas="O2"] .badge.text-bg-\w+ {
    color: #fff;
}
.dashboard-cylinder-item[data-gas="N2O"] .badge.text-bg-\w+ {
    color: #fff;
}
:root {
    --bg-main: #f1f4f8;
    --bg-card: #ffffff;
    --ink: #132238;
    --ink-soft: #5c6b7a;
    --line: #d9e2ec;
    --primary: #1f6feb;
    --primary-dark: #0e4fb5;
    --primary-soft: #cfe3ff;
    --accent: #10a37f;
    --danger: #c03a2b;
    --sidebar-bg: #111827;
    --btn-shadow: 0 8px 20px rgba(31, 111, 235, 0.2);
    --btn-shadow-soft: 0 6px 16px rgba(19, 34, 56, 0.08);

    /* cores para gases */
    --gas-o2: #198754; /* verde */
    --gas-n2o: #0d6efd; /* azul */
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Poppins", "Segoe UI", "Helvetica Neue", sans-serif;
    color: var(--ink);
    background: var(--bg-main);
    background-image: none;
}

.gas-badge {
    display: inline-block;
    padding: 0.25rem 0.6rem;
    border-radius: 0.45rem;
    color: #ffffff;
    font-weight: 600;
    font-size: 0.85rem;
}
.gas-o2 { background: var(--gas-o2); }
.gas-n2o { background: var(--gas-n2o); }

.admin-body {
    min-height: 100vh;
}

.app-shell {
    display: grid;
    grid-template-columns: 260px 1fr;
    min-height: 100vh;
}

.sidebar {
    background: var(--sidebar-bg);
    color: #f3f8ff;
    padding: 1.15rem 0.95rem;
    position: sticky;
    top: 0;
    height: 100vh;
    box-shadow: 6px 0 26px rgba(6, 25, 51, 0.2);
    overflow: hidden;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 1.35rem;
    padding: 0.65rem;
    border-radius: 0.9rem;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(3px);
    position: relative;
    z-index: 1;
}

.brand-logo {
    width: 2.55rem;
    height: 2.55rem;
    border-radius: 0.85rem;
    display: grid;
    place-items: center;
    font-weight: 800;
    letter-spacing: 0.03em;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.35), rgba(255, 255, 255, 0.16));
    box-shadow: 0 6px 18px rgba(6, 25, 51, 0.24);
}

.sidebar-brand small {
    display: block;
    opacity: 0.82;
    font-size: 0.75rem;
    letter-spacing: 0.02em;
}

.sidebar-nav .nav-link {
    color: rgba(245, 250, 255, 0.88);
    border-radius: 0.65rem;
    padding: 0.7rem 0.8rem;
    margin-bottom: 0.34rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    transition: background-color 0.18s ease, color 0.18s ease;
    position: relative;
    z-index: 1;
    font-weight: 500;
}

.sidebar-nav .nav-link svg {
    flex-shrink: 0;
    opacity: 0.9;
    transition: opacity 0.18s ease;
}

.sidebar-nav .nav-link:hover {
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
}

.sidebar-nav .nav-link.active {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    font-weight: 600;
}

.sidebar-nav .nav-link.active svg {
    opacity: 1;
}

.content-area {
    min-width: 0;
    display: flex;
    flex-direction: column;
    background: var(--bg-main);
}

.topbar {
    position: sticky;
    top: 0;
    z-index: 9;
    background: #ffffff;
    padding: 0.75rem 1.15rem;
    display: flex;
    align-items: center;
    gap: 0.85rem;
    box-shadow: 0 4px 12px rgba(19, 34, 56, 0.04);
    border-bottom: 1px solid var(--line);
    min-height: 68px;
}

.topbar-brand {
    display: flex;
    align-items: baseline;
    gap: 0.6rem;
}

.topbar-title {
    margin: 0;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--ink);
}

.topbar-actions {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.topbar-user-toggle {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    text-decoration: none;
    padding: 0.25rem 0.65rem; /* Increased horizontal padding */
    border-radius: 999px;
    background-color: transparent;
    transition: background-color 0.18s ease;
}

.topbar-user-toggle:hover {
    background-color: var(--bg-main);
}

.topbar-user-name {
    font-weight: 600;
    color: var(--ink);
    /* No additional padding needed here if .topbar-user-toggle padding handles it */
}

.topbar-user-avatar {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    background: var(--primary-soft);
    color: var(--primary);
    box-shadow: 0 0 0 4px #fff;
}

.topbar-user-toggle:hover .topbar-user-avatar {
    box-shadow: 0 0 0 4px var(--bg-main);
}

.topbar-user-avatar svg {
    width: 20px;
    height: 20px;
}

.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    color: var(--ink-soft);
    background: transparent;
    border: 0;
}

.btn-icon:hover {
    color: var(--ink);
    background: var(--bg-main);
}

.main-content {
    padding: 1.15rem;
    background: var(--bg-main);
}

.page-section {
    animation: reveal 0.34s ease-out;
}

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

.filter-grid {
    display: grid;
    gap: 0.75rem;
    grid-template-columns: repeat(6, minmax(0, 1fr));
}

.filter-grid-cylinders {
    display: grid;
    gap: 0.75rem;
    grid-template-columns: 2fr 1fr 1fr 1fr;
}

.filter-grid-sessions {
    display: grid;
    gap: 0.75rem;
    grid-template-columns: repeat(6, minmax(0, 1fr));
}

.settings-page {
    display: grid;
    gap: 0.95rem;
}

.settings-hero {
    border: 1px solid #d7e3f4;
    background: #ffffff;
    padding: 1rem;
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 0.95rem;
}

.settings-kicker {
    display: inline-block;
    font-size: 0.74rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-weight: 700;
    color: #2c5f9e;
}

.settings-hero-main p {
    color: #546b83;
}

.settings-hero-chips {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.62rem;
}

.settings-hero-chip {
    border: 1px solid #d7e3f4;
    border-radius: 0.84rem;
    background: #f8fbff;
    padding: 0.62rem 0.68rem;
}

.settings-hero-chip small {
    display: block;
    color: #5d7390;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.14rem;
}

.settings-hero-chip strong {
    font-size: 1.03rem;
    color: #112c45;
}

.settings-form {
    display: grid;
    gap: 0.9rem;
}

.settings-panel {
    border: 1px solid #d7e3f4;
    background: #ffffff;
    padding: 1rem;
}

.settings-panel-head {
    margin-bottom: 0.75rem;
}

.settings-panel-head h3 {
    margin: 0 0 0.28rem 0;
    font-size: 1.03rem;
    color: #143451;
}

.settings-panel-head p {
    margin: 0;
    color: #5b728b;
    font-size: 0.9rem;
}

.settings-panel .form-label {
    margin-bottom: 0.35rem;
    font-weight: 600;
    color: #17314d;
}

.settings-panel .form-text {
    color: #5f7690;
}

.settings-panel .input-group-text {
    border-color: #d6e2f2;
    background: #f4f8ff;
    color: #3e5c7d;
    font-weight: 600;
    font-size: 0.78rem;
}

.settings-flow-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.7rem;
}

.settings-flow-card {
    border: 1px solid #d7e3f4;
    border-radius: 0.9rem;
    background: #fafcff;
    padding: 0.76rem;
}

.settings-flow-card-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.52rem;
    margin-bottom: 0.62rem;
}

.settings-flow-card-head h4 {
    margin: 0;
    font-size: 0.95rem;
    color: #17324f;
}

.settings-flow-card-head span {
    border-radius: 999px;
    border: 1px solid #cad8eb;
    background: #f1f6fd;
    color: #3f5d7d;
    padding: 0.18rem 0.5rem;
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: 700;
}

.settings-flow-card-children {
    border-color: #c8dcf8;
    background: #f6faff;
}

.settings-flow-card-adults {
    border-color: #c9def3;
    background: #f6fbff;
}

.settings-flow-card-expanded {
    border-color: #cde4dd;
    background: #f5fbf8;
}

.settings-flow-card-note {
    display: block;
    margin-top: 0.64rem;
    color: #4f6b66;
    font-size: 0.77rem;
}

.settings-footnote {
    margin-top: 0.8rem;
    color: #506980;
    font-size: 0.85rem;
}

.settings-form-footer {
    border: 1px solid #d7e3f4;
    border-radius: 0.92rem;
    background: #ffffff;
    padding: 0.78rem 0.86rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
}

.settings-form-footer small {
    color: #576e88;
}

.sessions-hero {
    border: 1px solid rgba(31, 111, 235, 0.16);
    background:
        radial-gradient(circle at 85% 20%, rgba(31, 111, 235, 0.15), transparent 36%),
        radial-gradient(circle at 15% 80%, rgba(16, 163, 127, 0.14), transparent 38%),
        #ffffff;
}

.sessions-kicker {
    display: inline-block;
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-weight: 700;
    color: #26548e;
}

.sessions-stats {
    display: grid;
    gap: 0.75rem;
    grid-template-columns: repeat(6, minmax(0, 1fr));
}

.session-stat-card {
    border-radius: 0.95rem;
    border: 1px solid #d7e3f4;
    background: #ffffff;
    padding: 0.72rem 0.8rem;
}

.session-stat-card small {
    display: block;
    color: #5e7189;
    font-size: 0.73rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 0.18rem;
}

.session-stat-card strong {
    font-size: 1.1rem;
}

.sessions-toolbar {
    display: grid;
    gap: 0.72rem;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    border: 1px solid #d7e3f4;
    background: #ffffff;
}

.sessions-table-card {
    border: 1px solid #d7e3f4;
    background: #ffffff;
    overflow: auto;
}

.sessions-table thead th {
    position: sticky;
    top: 0;
    z-index: 2;
    background: #f5f9ff;
    color: #365578;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    border-bottom: 1px solid #d7e3f4;
}

.sessions-table tbody tr {
    transition: background-color 0.16s ease, transform 0.16s ease;
}

.sessions-table tbody tr:hover {
    background: rgba(31, 111, 235, 0.06);
}

.sessions-table tbody td {
    border-top: 1px solid #ecf1f8;
}

.sessions-table .row-high-cost {
    background: linear-gradient(90deg, rgba(192, 58, 43, 0.1), rgba(192, 58, 43, 0));
}

.sessions-mobile-list {
    display: grid;
    gap: 0.75rem;
}

.session-mobile-card {
    border: 1px solid #d7e3f4;
    background: #ffffff;
    padding: 0.76rem;
}

.session-mobile-card.is-high-cost {
    border-color: #f1c0b8;
    background: #fff8f7;
}

.session-mobile-empty {
    text-align: center;
}

.session-mobile-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 0.55rem;
    margin-bottom: 0.35rem;
}

.session-mobile-date {
    font-weight: 700;
    color: #112940;
}

.session-mobile-id {
    color: #637a95;
    font-size: 0.74rem;
}

.session-mobile-patient {
    margin: 0 0 0.58rem 0;
    font-size: 0.98rem;
    font-weight: 700;
    color: #10283f;
}

.session-mobile-metrics {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.5rem;
    margin-bottom: 0.6rem;
}

.session-mobile-metric {
    border: 1px solid #dce7f5;
    border-radius: 0.75rem;
    background: #f8fbff;
    padding: 0.46rem 0.52rem;
}

.session-mobile-metric small {
    display: block;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #5d7590;
    margin-bottom: 0.14rem;
}

.session-mobile-metric strong {
    font-size: 0.9rem;
    color: #112b44;
}

.session-mobile-cylinders {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 0.6rem;
}

.session-mobile-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.45rem;
}

.session-mobile-delete {
    grid-column: 1 / -1;
}

.session-mobile-delete .btn {
    width: 100%;
}

.session-cost-scale {
    display: inline-flex;
    flex-direction: column;
    gap: 0.2rem;
    cursor: pointer;
}

.session-cost-blocks {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 11px));
    gap: 3px;
}

.session-cost-block {
    width: 11px;
    height: 11px;
    border-radius: 3px;
    border: 1px solid #d3dfef;
    background: #e9eff8;
}

.session-cost-block.active {
    box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.06);
}

.session-cost-blocks.level-1 .session-cost-block.active {
    background: #39b37a;
    border-color: #39b37a;
}

.session-cost-blocks.level-2 .session-cost-block.active {
    background: #66be52;
    border-color: #66be52;
}

.session-cost-blocks.level-3 .session-cost-block.active {
    background: #f1b940;
    border-color: #f1b940;
}

.session-cost-blocks.level-4 .session-cost-block.active {
    background: #f08a33;
    border-color: #f08a33;
}

.session-cost-blocks.level-5 .session-cost-block.active {
    background: #e75b34;
    border-color: #e75b34;
}

.session-cost-blocks.level-6 .session-cost-block.active {
    background: #d83933;
    border-color: #d83933;
}

.session-cost-caption {
    font-size: 0.72rem;
    color: #5d7390;
    font-weight: 600;
}

.session-flow-reference {
    border: 1px solid #d9e5f5;
    border-radius: 0.9rem;
    background: #f7faff;
    padding: 0.66rem 0.72rem;
}

.session-flow-reference-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 0.6rem;
    margin-bottom: 0.5rem;
}

.session-flow-reference-head strong {
    font-size: 0.84rem;
    color: #173554;
    line-height: 1.2;
}

.session-flow-reference-head small {
    font-size: 0.74rem;
    color: #54708e;
}

.session-flow-reference-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.5rem;
}

.session-flow-reference-item {
    border: 1px solid #d6e3f3;
    border-radius: 0.78rem;
    background: #ffffff;
    padding: 0.5rem 0.55rem;
    transition: border-color 0.16s ease, background-color 0.16s ease, box-shadow 0.16s ease;
}

.session-flow-reference-item small {
    display: block;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: #5d7692;
    margin-bottom: 0.12rem;
}

.session-flow-reference-item strong {
    display: block;
    font-size: 0.9rem;
    color: #173554;
    line-height: 1.2;
}

.session-flow-reference-item.is-active {
    border-color: #9bb8de;
    background: #ebf2ff;
    box-shadow: inset 0 0 0 1px rgba(31, 111, 235, 0.12);
}

.session-flow-reference-item-alt {
    border-style: dashed;
    background: #fdfefe;
}

.session-flow-reference-note {
    margin-top: 0.52rem;
    font-size: 0.76rem;
    color: #48627f;
}

.session-expanded-check {
    border: 1px solid #d6e3f3;
    border-radius: 0.78rem;
    background: #f8fbff;
    padding: 0.72rem 0.78rem;
    display: flex;
    align-items: flex-start;
    gap: 0.72rem;
    cursor: pointer;
    width: 100%;
}

.session-expanded-check-input {
    width: 1.2rem;
    height: 1.2rem;
    margin: 0.1rem 0 0;
    flex-shrink: 0;
}

.session-expanded-check-content {
    display: grid;
    gap: 0.12rem;
    min-width: 0;
}

.session-expanded-check-title {
    display: block;
    font-size: 1rem;
    font-weight: 700;
    color: #123250;
    line-height: 1.25;
}

.session-expanded-check-note {
    display: block;
    color: #506b88;
    font-size: 0.82rem;
    line-height: 1.35;
}

.session-expanded-check-input:checked + .session-expanded-check-content .session-expanded-check-title {
    color: #0f4ba1;
}

.session-flow-reference-item-alt.is-active {
    border-style: solid;
    border-color: #8f74d8;
    background: #f5f1ff;
    box-shadow: inset 0 0 0 1px rgba(127, 86, 217, 0.24);
}

.session-cost-tooltip .tooltip-inner {
    max-width: 380px;
    text-align: left;
}

.session-consumption-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.38rem;
    padding: 0.28rem 0.5rem;
    border-radius: 0.7rem;
    border: 1px solid #d6e3f5;
    background: #f7faff;
    color: #294661;
    cursor: pointer;
}

.session-consumption-badge small {
    font-size: 0.73rem;
    font-weight: 700;
    line-height: 1.15;
}

.session-consumption-icon {
    width: 1.15rem;
    height: 1.15rem;
    border-radius: 0.4rem;
    display: grid;
    place-items: center;
    background: #e7eef9;
    color: #295077;
    flex-shrink: 0;
}

.session-consumption-icon svg {
    width: 0.8rem;
    height: 0.8rem;
}

.session-consumption-badge.is-high {
    border-color: #f2c1bc;
    background: #fff7f6;
    color: #88261c;
}

.session-consumption-badge.is-high .session-consumption-icon {
    background: #fde8e6;
    color: #b42318;
}

.session-consumption-badge.is-warning {
    border-color: #f5d8a2;
    background: #fff9ef;
    color: #7a4d08;
}

.session-consumption-badge.is-warning .session-consumption-icon {
    background: #fff0cf;
    color: #9a6700;
}

.session-consumption-badge.is-ok {
    border-color: #bfe2d8;
    background: #f2fbf8;
    color: #105f4b;
}

.session-consumption-badge.is-ok .session-consumption-icon {
    background: #def5ee;
    color: #10705a;
}

.session-consumption-badge.is-muted {
    border-color: #dbe5f3;
    background: #f8fbff;
    color: #48607a;
}

.session-detail-page {
    display: grid;
    gap: 0.95rem;
}

.session-summary-surface {
    border: 1px solid #d8e5f8;
    background: #ffffff;
    padding: 1rem;
    overflow: hidden;
}

.session-summary-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 0.95rem;
    margin-bottom: 0.95rem;
}

.session-detail-kicker {
    font-size: 0.73rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 700;
    color: #2d5d9b;
}

.session-detail-subtitle {
    color: #4c6179;
    font-weight: 500;
}

.session-meta-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
}

.session-chip {
    border-radius: 999px;
    padding: 0.28rem 0.62rem;
    font-size: 0.76rem;
    font-weight: 600;
    color: #2a4664;
    background: #f4f8fe;
    border: 1px solid #d7e3f4;
}

.session-chip-warning {
    color: #6a4100;
    background: #fff2d9;
    border-color: #f3d69b;
}

.session-chip-success {
    color: #0f5746;
    background: #e6f7f3;
    border-color: #b6e6d9;
}

.session-chip-analytics.is-high {
    color: #88261c;
    background: #fff2f1;
    border-color: #f0beb8;
}

.session-chip-analytics.is-warning {
    color: #7a4d08;
    background: #fff9ee;
    border-color: #f2d39a;
}

.session-chip-analytics.is-ok {
    color: #0f5f4b;
    background: #ecfaf5;
    border-color: #bde6d9;
}

.session-chip-analytics.is-muted {
    color: #46607d;
    background: #f4f8fe;
    border-color: #d7e3f4;
}

.session-action-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: flex-end;
}

.btn-icon-label {
    display: inline-flex;
    align-items: center;
    gap: 0.42rem;
}

.btn-icon-label svg {
    width: 0.94rem;
    height: 0.94rem;
    flex-shrink: 0;
}

.session-highlight-stack {
    display: grid;
    gap: 0.72rem;
}

.session-highlight-grid {
    display: grid;
    gap: 0.72rem;
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.session-highlight-card {
    border-radius: 0.92rem;
    border: 1px solid #d7e3f4;
    background: #f8fbff;
    padding: 0.76rem 0.82rem;
    min-height: 88px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.session-highlight-grid-primary .session-highlight-card {
    border-color: #cddff7;
    background: #f4f9ff;
}

.session-highlight-card-emphasis {
    border-color: #b9d2f5;
    background: #ecf4ff;
}

.session-highlight-card-safe {
    border-color: #bee4d9;
    background: #eef9f5;
}

.session-highlight-card-warning {
    border-color: #efd8ab;
    background: #fff9ee;
}

.session-highlight-card-alert {
    border-color: #efc0bc;
    background: #fff2f1;
}

.session-highlight-card small {
    display: block;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: #526b86;
    margin-bottom: 0.34rem;
    line-height: 1.2;
}

.session-highlight-card strong {
    font-size: 1.17rem;
    color: #10253c;
    line-height: 1.2;
}

.session-gas-card {
    border: 1px solid #d8e5f8;
    border-radius: 1rem;
    padding: 0.9rem;
}

.session-gas-card-o2 {
    background: #ffffff;
    border-color: #cfe0f8;
}

.session-gas-card-n2o {
    background: #ffffff;
    border-color: #cfe8e1;
}

.session-gas-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.6rem;
    margin-bottom: 0.75rem;
}

.session-pill {
    border-radius: 999px;
    padding: 0.23rem 0.62rem;
    font-size: 0.74rem;
    font-weight: 700;
}

.session-pill-ok {
    color: #0f5e4a;
    background: rgba(16, 163, 127, 0.16);
}

.session-pill-warning {
    color: #6a4100;
    background: rgba(255, 198, 79, 0.24);
}

.session-gas-grid {
    display: grid;
    gap: 0.56rem;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.session-metric-tile {
    border-radius: 0.82rem;
    padding: 0.56rem 0.64rem;
    border: 1px solid #d9e4f2;
    background: #ffffff;
}

.session-metric-tile small {
    display: block;
    font-size: 0.72rem;
    color: #566f8c;
    margin-bottom: 0.16rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.session-metric-tile strong {
    font-size: 0.96rem;
    color: #112940;
}

.session-metric-tile-emphasis {
    border-color: #bdd6fa;
    background: #edf4ff;
}

.session-link {
    color: #135ec9;
    text-decoration: none;
}

.session-link:hover {
    color: #0f4ba1;
    text-decoration: underline;
}

.session-panel-card {
    border: 1px solid #d8e5f8;
    border-radius: 1rem;
    padding: 0.9rem;
    background: #ffffff;
}

.session-panel-head {
    margin-bottom: 0.82rem;
}

.session-panel-head small {
    color: #607790;
}

.session-consumption-head {
    display: flex;
    align-items: center;
    gap: 0.52rem;
    border-radius: 0.82rem;
    border: 1px solid #dbe5f3;
    background: #f8fbff;
    padding: 0.54rem 0.62rem;
    margin-bottom: 0.72rem;
    cursor: pointer;
}

.session-consumption-head strong {
    display: block;
    font-size: 0.9rem;
    color: #14324f;
    line-height: 1.2;
}

.session-consumption-head small {
    color: #5a7390;
}

.session-consumption-head.is-high {
    border-color: #f0beb8;
    background: #fff4f3;
}

.session-consumption-head.is-warning {
    border-color: #f2d39a;
    background: #fff9ef;
}

.session-consumption-head.is-ok {
    border-color: #bfe2d8;
    background: #effaf6;
}

.session-consumption-head.is-muted {
    border-color: #dbe5f3;
    background: #f8fbff;
}

.session-vertical-compare {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(54px, 1fr));
    gap: 0.52rem;
    align-items: end;
}

.session-vertical-item {
    display: grid;
    justify-items: center;
    gap: 0.2rem;
}

.session-vertical-track {
    width: 100%;
    max-width: 42px;
    height: 146px;
    border-radius: 0.72rem;
    border: 1px solid #d8e5f6;
    background: #f4f8ff;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding: 3px;
}

.session-vertical-fill {
    width: 100%;
    min-height: 6px;
    border-radius: 0.56rem;
}

.session-vertical-fill-o2 {
    background: var(--gas-o2);
}

.session-vertical-fill-n2o {
    background: var(--gas-n2o);
}

.session-vertical-fill-flow {
    background: #5f6de1;
}

.session-vertical-fill-reference {
    background: #a2b4cc;
}

.session-vertical-fill-reference-max {
    background: #7e95b3;
}

.session-vertical-fill-expanded {
    background: #7f56d9;
}

.session-vertical-fill.is-alert {
    background: #d83933;
}

/* Softened metric tiles per gas card */
.session-gas-card-o2 .session-metric-tile {
    border-color: rgba(25, 135, 84, 0.12);
    background: rgba(25, 135, 84, 0.06);
}
.session-gas-card-o2 .session-metric-tile.session-metric-tile-emphasis {
    border-color: rgba(25, 135, 84, 0.18);
    background: rgba(25, 135, 84, 0.12);
}

.session-gas-card-n2o .session-metric-tile {
    border-color: rgba(13, 110, 253, 0.12);
    background: rgba(13, 110, 253, 0.06);
}
.session-gas-card-n2o .session-metric-tile.session-metric-tile-emphasis {
    border-color: rgba(13, 110, 253, 0.18);
    background: rgba(13, 110, 253, 0.12);
}

/* Ensure any linear progress bars inside gas cards follow gas color */
.session-gas-card-o2 .progress .progress-bar {
    background-color: var(--gas-o2) !important;
}
.session-gas-card-n2o .progress .progress-bar {
    background-color: var(--gas-n2o) !important;
}

.session-vertical-item strong {
    font-size: 0.8rem;
    color: #14324f;
    line-height: 1.2;
}

.session-vertical-item small {
    font-size: 0.67rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: #5c7491;
}

.session-consumption-notes {
    margin: 0.74rem 0 0;
    padding-left: 1rem;
    color: #344f6c;
    font-size: 0.78rem;
}

.session-consumption-notes li + li {
    margin-top: 0.28rem;
}

.session-split-block {
    display: grid;
    gap: 0.6rem;
}

.session-split-block + .session-split-block {
    margin-top: 0.75rem;
}

.session-split-item {
    border-radius: 0.85rem;
    border: 1px solid #dce7f5;
    background: #f7faff;
    padding: 0.58rem 0.62rem;
}

.session-split-item span {
    font-size: 0.82rem;
    color: #37526f;
    font-weight: 600;
}

.session-split-item small {
    color: #5d7490;
}

.session-progress-track {
    height: 0.58rem;
    border-radius: 999px;
    background: #e7eef8;
    overflow: hidden;
}

.session-progress-o2 {
    background: #2f88ff;
}

.session-progress-n2o {
    background: #17b490;
}

.session-modal-details dt {
    margin: 0;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: #577089;
    font-weight: 700;
    padding-top: 0.28rem;
}

.session-modal-details dd {
    margin: 0;
    color: #122c45;
    font-weight: 500;
    padding-bottom: 0.56rem;
    line-height: 1.35;
}

.session-modal-note {
    background: #f7faff;
    border: 1px solid #dce7f5;
    border-radius: 0.72rem;
    padding: 0.52rem 0.62rem;
    white-space: pre-wrap;
}

.confirm-modal .modal-content {
    border-radius: 1rem;
    border: 1px solid #dce7f4;
    box-shadow: 0 20px 40px rgba(18, 46, 73, 0.16);
}

.confirm-modal-icon {
    width: 2.4rem;
    height: 2.4rem;
    border-radius: 0.75rem;
    display: grid;
    place-items: center;
    font-size: 1rem;
    font-weight: 800;
    color: #1f6feb;
    background: #e8f1ff;
}

.confirm-modal-icon.is-danger {
    color: #b42318;
    background: #fde9e7;
}

.confirm-modal-icon.is-warning {
    color: #9a6700;
    background: #fff4d8;
}

.confirm-modal-icon.is-info {
    color: #1f6feb;
    background: #e8f1ff;
}

.dashboard-page {
    display: grid;
    gap: 0.95rem;
}

.dashboard-hero {
    position: relative;
    overflow: hidden;
    border: 1px solid #d7e3f4;
    background:
        radial-gradient(circle at 85% 12%, rgba(31, 111, 235, 0.16), transparent 45%),
        radial-gradient(circle at 12% 88%, rgba(16, 163, 127, 0.12), transparent 42%),
        #ffffff;
    padding: 1rem;
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 0.95rem;
}

.dashboard-kicker {
    display: inline-block;
    font-size: 0.74rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-weight: 700;
    color: #2a5d9a;
}

.dashboard-hero-main p {
    color: #536b84;
}

.dashboard-hero-pills {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.62rem;
}

.dashboard-hero-pill {
    border: 1px solid #d8e4f3;
    border-radius: 0.84rem;
    background: #f8fbff;
    padding: 0.62rem 0.7rem;
}

.dashboard-hero-pill small {
    display: block;
    color: #5b7491;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.16rem;
}

.dashboard-hero-pill strong {
    color: #112d45;
    font-size: 1.02rem;
}

.dashboard-filter-grid {
    border: 1px solid #d7e3f4;
    background: #ffffff;
}

.dashboard-filter-grid .form-label {
    font-weight: 600;
    color: #1a3654;
    margin-bottom: 0.3rem;
}

.kpi-grid {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 0.75rem;
}

.kpi-card {
    --kpi-accent: #1f6feb;
    --kpi-soft: #e9f2ff;
    background: #ffffff;
    border: 1px solid #d7e3f4;
    border-radius: 0.92rem;
    padding: 0.76rem 0.82rem;
    position: relative;
    overflow: hidden;
    min-height: 122px;
    display: flex;
    flex-direction: column;
    gap: 0.32rem;
}

.kpi-card::after {
    content: "";
    position: absolute;
    inset: auto -28px -28px auto;
    width: 96px;
    height: 96px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--kpi-soft) 0%, transparent 72%);
    pointer-events: none;
}

.kpi-card-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.5rem;
}

.kpi-card h3 {
    font-size: 0.73rem;
    color: #4f6681;
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    line-height: 1.25;
}

.kpi-card-dot {
    width: 0.52rem;
    height: 0.52rem;
    border-radius: 50%;
    background: var(--kpi-accent);
    box-shadow: 0 0 0 5px color-mix(in srgb, var(--kpi-accent) 15%, #ffffff);
    flex-shrink: 0;
}

.kpi-card p {
    margin: 0;
    font-size: 1.22rem;
    font-weight: 700;
    color: #10283f;
    line-height: 1.2;
}

.kpi-meta {
    margin-top: auto;
    color: #5d7390;
    font-size: 0.75rem;
    line-height: 1.3;
}

.kpi-card-sky {
    --kpi-accent: #1f6feb;
    --kpi-soft: rgba(31, 111, 235, 0.2);
}

.kpi-card-blue {
    --kpi-accent: #2179d2;
    --kpi-soft: rgba(33, 121, 210, 0.18);
}

.kpi-card-mint {
    --kpi-accent: #10a37f;
    --kpi-soft: rgba(16, 163, 127, 0.18);
}

.kpi-card-rose {
    --kpi-accent: #d35a46;
    --kpi-soft: rgba(211, 90, 70, 0.18);
}

.kpi-card-indigo {
    --kpi-accent: #5b6cd8;
    --kpi-soft: rgba(91, 108, 216, 0.18);
}

.kpi-card-violet {
    --kpi-accent: #8b5cf6;
    --kpi-soft: rgba(139, 92, 246, 0.18);
}

.dashboard-cylinder-card {
    border: 1px solid #d7e3f4;
    background: #ffffff;
}

.dashboard-cylinder-card .card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    background: #f7faff;
    border-bottom: 1px solid #e2ebf7;
    color: #1f3f61;
}

.dashboard-card-chip {
    border-radius: 999px;
    border: 1px solid #cfdcf0;
    background: #edf4ff;
    color: #3d5d7f;
    padding: 0.16rem 0.5rem;
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.dashboard-cylinder-list {
    display: grid;
    gap: 0.62rem;
}

.dashboard-cylinder-item {
    border: 1px solid #dbe6f5;
    border-radius: 0.82rem;
    background: #f9fcff;
    padding: 0.64rem 0.68rem;
}

.dashboard-cylinder-item-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.55rem;
    margin-bottom: 0.35rem;
}

.dashboard-cylinder-item .progress {
    height: 0.54rem;
    border-radius: 999px;
    background: #e8eef7;
}

.dashboard-cylinder-item .progress-bar {
    border-radius: 999px;
}

.dashboard-cylinder-meta {
    display: inline-block;
    margin-top: 0.32rem;
    color: #5c7390;
    font-size: 0.76rem;
}

.dashboard-empty {
    color: #5a7390;
}

.dashboard-chart-card {
    border: 1px solid #d7e3f4;
    background: #ffffff;
}

.dashboard-chart-card .card-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 0.75rem;
    background: #f7faff;
    border-bottom: 1px solid #e2ebf7;
}

.dashboard-chart-card .card-header small {
    color: #607894;
    font-size: 0.75rem;
    font-weight: 500;
}

.card {
    border: 0;
    border-radius: 0.9rem;
    box-shadow: none;
}

.card-header {
    background: #f8fbff;
    border-bottom: 0;
    font-weight: 600;
}

.flash-stack .alert {
    margin-bottom: 0.65rem;
}

.auth-body {
    min-height: 100vh;
    background:
        radial-gradient(circle at 12% 10%, rgba(16, 163, 127, 0.26), transparent 35%),
        radial-gradient(circle at 80% 20%, rgba(31, 111, 235, 0.26), transparent 40%),
        linear-gradient(165deg, #e8f1ff 0%, #f5f8ff 55%, #eafcf7 100%);
    display: grid;
    place-items: center;
    padding: 1rem;
}

.auth-wrapper {
    width: min(420px, 100%);
}

.auth-card {
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(192, 210, 229, 0.7);
    border-radius: 1rem;
    box-shadow: 0 18px 35px rgba(19, 34, 56, 0.08);
    padding: 1.6rem 1.4rem;
}

.auth-card h1 {
    margin: 0 0 0.2rem 0;
    font-size: 1.35rem;
}

.auth-card p {
    margin: 0 0 1rem 0;
    color: var(--ink-soft);
}

.auth-tip {
    margin-top: 0.9rem;
    color: var(--ink-soft);
    font-size: 0.85rem;
}

.table > :not(caption) > * > * {
    padding: 0.6rem 0.55rem;
}

.progress-thin {
    height: 0.5rem;
    border-radius: 999px;
    background: rgba(19, 34, 56, 0.08);
}

.cylinder-level {
    min-width: 155px;
}

.cylinder-remaining-card {
    border: 1px solid #d7e3f4;
    background: #ffffff;
}

.cylinder-summary-card {
    border: 1px solid #d7e3f4;
    background: #ffffff;
}

.cylinder-summary-grid {
    display: grid;
    gap: 0.52rem;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.cylinder-summary-item {
    border: 1px solid #dce7f5;
    border-radius: 0.78rem;
    background: #f8fbff;
    padding: 0.48rem 0.56rem;
}

.cylinder-summary-item small {
    display: block;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #5c7390;
    margin-bottom: 0.1rem;
}

.cylinder-summary-item strong {
    display: block;
    font-size: 0.95rem;
    color: #112b44;
    line-height: 1.25;
    word-break: break-word;
}

.cylinder-remaining-value {
    color: #10283f;
    font-weight: 700;
    letter-spacing: 0.01em;
}

.cylinder-remaining-meta {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.45rem;
}

.cylinder-remaining-meta-item {
    border: 1px solid #dce7f5;
    border-radius: 0.75rem;
    background: #f8fbff;
    padding: 0.42rem 0.5rem;
}

.cylinder-remaining-meta-item small {
    display: block;
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #5a7290;
    margin-bottom: 0.08rem;
}

.cylinder-remaining-meta-item strong {
    font-size: 0.86rem;
    color: #112b44;
}

.btn {
    --bs-btn-border-radius: 0.72rem;
    --bs-btn-font-weight: 600;
    --bs-btn-padding-y: 0.48rem;
    --bs-btn-padding-x: 0.86rem;
    transition: transform 0.16s ease, box-shadow 0.18s ease, background-color 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}

.btn:focus-visible {
    outline: none;
    box-shadow: 0 0 0 0.22rem rgba(31, 111, 235, 0.25);
}

.btn-primary {
    --bs-btn-bg: var(--primary);
    --bs-btn-border-color: var(--primary);
    --bs-btn-hover-bg: var(--primary-dark);
    --bs-btn-hover-border-color: var(--primary-dark);
    --bs-btn-active-bg: #0c469d;
    --bs-btn-active-border-color: #0c469d;
    background-image: linear-gradient(135deg, #2f88ff 0%, var(--primary) 62%, #1460d0 100%);
    border: 1px solid transparent;
    box-shadow: var(--btn-shadow);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 11px 22px rgba(31, 111, 235, 0.28);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-outline-primary {
    --bs-btn-color: var(--primary-dark);
    --bs-btn-border-color: transparent;
    --bs-btn-hover-bg: rgba(31, 111, 235, 0.1);
    --bs-btn-hover-color: #0d4ba8;
    --bs-btn-hover-border-color: transparent;
    --bs-btn-active-bg: rgba(31, 111, 235, 0.16);
    background: rgba(255, 255, 255, 0.62);
}

.btn-outline-secondary {
    --bs-btn-color: #3b4f67;
    --bs-btn-border-color: transparent;
    --bs-btn-hover-bg: rgba(92, 107, 122, 0.1);
    --bs-btn-hover-color: #1d2f45;
    --bs-btn-hover-border-color: transparent;
    --bs-btn-active-bg: rgba(92, 107, 122, 0.17);
    background: rgba(255, 255, 255, 0.62);
}

.btn-outline-dark {
    --bs-btn-color: #1f3045;
    --bs-btn-border-color: transparent;
    --bs-btn-hover-bg: rgba(31, 48, 69, 0.12);
    --bs-btn-hover-color: #132238;
    --bs-btn-hover-border-color: transparent;
    --bs-btn-active-bg: rgba(31, 48, 69, 0.18);
    background: rgba(255, 255, 255, 0.62);
}

.btn-outline-danger {
    --bs-btn-color: var(--danger);
    --bs-btn-border-color: transparent;
    --bs-btn-hover-bg: rgba(192, 58, 43, 0.11);
    --bs-btn-hover-border-color: transparent;
    --bs-btn-active-bg: rgba(192, 58, 43, 0.18);
}

.btn-outline-primary:hover,
.btn-outline-secondary:hover,
.btn-outline-dark:hover,
.btn-outline-danger:hover {
    transform: translateY(-1px);
    box-shadow: var(--btn-shadow-soft);
}

.btn-sm {
    --bs-btn-border-radius: 0.62rem;
    --bs-btn-padding-y: 0.35rem;
    --bs-btn-padding-x: 0.7rem;
}

@media (max-width: 1200px) {
    .dashboard-hero {
        grid-template-columns: 1fr;
    }

    .settings-hero {
        grid-template-columns: 1fr;
    }

    .settings-flow-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .kpi-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .session-highlight-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .sessions-stats {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .sessions-toolbar {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
}

@media (max-width: 991px) {
    .app-shell {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        height: 100vh;
        width: 260px;
        transform: translateX(-100%);
        transition: transform 0.2s ease;
        z-index: 20;
    }

    .app-shell.sidebar-open .sidebar {
        transform: translateX(0);
    }

    .content-area {
        min-height: 100vh;
    }

    .filter-grid,
    .filter-grid-cylinders,
    .filter-grid-sessions {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .sessions-stats {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .sessions-toolbar {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .dashboard-hero-pills {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .kpi-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .dashboard-chart-card .card-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .settings-flow-grid {
        grid-template-columns: 1fr;
    }

    .settings-form-footer {
        flex-direction: column;
        align-items: flex-start;
    }

    .session-summary-header {
        flex-direction: column;
    }

    .session-action-stack {
        width: 100%;
        justify-content: flex-start;
    }

    .session-highlight-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .session-flow-reference-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 575px) {
    .main-content {
        padding: 0.75rem;
    }

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

    .filter-grid,
    .filter-grid-cylinders,
    .filter-grid-sessions {
        grid-template-columns: 1fr;
    }

    .sessions-stats,
    .sessions-toolbar {
        grid-template-columns: 1fr;
    }

    .settings-hero,
    .settings-panel {
        padding: 0.8rem;
    }

    .dashboard-hero {
        padding: 0.8rem;
    }

    .dashboard-hero-pills {
        grid-template-columns: 1fr;
    }

    .settings-hero-chips {
        grid-template-columns: 1fr;
    }

    .session-highlight-grid,
    .session-gas-grid {
        grid-template-columns: 1fr;
    }

    .session-mobile-metrics,
    .session-mobile-actions {
        grid-template-columns: 1fr;
    }

    .session-flow-reference-head {
        flex-direction: column;
    }

    .session-flow-reference-grid {
        grid-template-columns: 1fr;
    }

    .session-vertical-track {
        max-width: 36px;
        height: 126px;
    }

    .session-consumption-head {
        align-items: flex-start;
    }

    .cylinder-remaining-meta {
        grid-template-columns: 1fr;
    }

    .cylinder-summary-grid {
        grid-template-columns: 1fr;
    }

    .session-action-stack .btn,
    .session-action-stack form,
    .session-action-stack button {
        width: 100%;
    }
}