/* ============================================================
   AC Service Management - Main Stylesheet
   ============================================================ */

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

:root {
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-7: 28px;

    --page-pad-y: 22px;
    --page-pad-x: 24px;
    --card-gap: 20px;
    --card-pad: 18px;
    --card-header-pad-y: 12px;
    --card-header-pad-x: 18px;
    --grid-gap-lg: 20px;
    --grid-gap-md: 16px;
    --grid-gap-sm: 14px;
    --topbar-pad-y: 12px;
    --topbar-pad-x: 24px;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: 14px;
    background: #e8edf2;
    color: #2c3e50;
    min-height: 100vh;
}

.app-wrapper { display: flex; min-height: 100vh; }

/* ---- Mobile Top Bar ---- */
.mobile-topbar {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0;
    height: 52px;
    background: #111c2d;
    border-bottom: 2px solid #2980b9;
    z-index: 200;
    align-items: center;
    justify-content: space-between;
    padding: 0 12px;
}

.hamburger {
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    gap: 5px;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    padding: 6px;
}

.hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: #ecf0f1;
    border-radius: 2px;
    transition: all 0.25s;
}

.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-logo { display: flex; align-items: center; }

.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.55);
    z-index: 150;
}
.sidebar-overlay.active { display: block; }

/* ---- Sidebar ---- */
.sidebar {
    width: 220px;
    min-width: 220px;
    max-width: 85vw;
    background: #1a2535;
    color: #c8d6e5;
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; left: 0;
    height: 100vh;
    overflow-y: auto;
    z-index: 160;
    transition: transform 0.28s cubic-bezier(.4,0,.2,1);
}

.sidebar-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 18px 16px 16px;
    background: #111c2d;
    border-bottom: 2px solid #2980b9;
    flex-shrink: 0;
}

.logo-icon { font-size: 28px; color: #3498db; line-height: 1; }
.logo-text strong { display: block; font-size: 14px; color: #ecf0f1; letter-spacing: 0.5px; }
.logo-text small  { font-size: 11px; color: #7f8c8d; }

.sidebar-nav { flex: 1; padding: 12px 0; }

.nav-section-label {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 1.2px;
    color: #546e7a;
    padding: 14px 16px 4px;
    text-transform: uppercase;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 9px 16px;
    color: #b0bec5;
    text-decoration: none;
    font-size: 13.5px;
    transition: background 0.15s, color 0.15s;
    border-left: 3px solid transparent;
}

.nav-item:hover  { background: #243044; color: #ecf0f1; }
.nav-item.active { background: #1e3a5f; color: #fff; border-left-color: #2980b9; font-weight: 600; }
.nav-icon { font-size: 10px; color: #546e7a; }
.nav-item.active .nav-icon { color: #2980b9; }

.sidebar-footer {
    padding: 12px 14px;
    background: #111c2d;
    border-top: 1px solid #243044;
    flex-shrink: 0;
}

.user-info { margin-bottom: 8px; }
.user-name { display: block; font-size: 13px; font-weight: 600; color: #ecf0f1; }
.user-role { font-size: 11px; color: #7f8c8d; text-transform: capitalize; }

.btn-logout {
    display: block;
    text-align: center;
    padding: 6px 10px;
    background: #c0392b;
    color: #fff;
    text-decoration: none;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: background 0.2s;
}
.btn-logout:hover { background: #a93226; }

/* ---- Main Content ---- */
.main-content {
    flex: 1;
    margin-left: 220px;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    min-width: 0;
    overflow: hidden;
}

.topbar {
    background: #fff;
    border-bottom: 2px solid #d5dce6;
    padding: var(--topbar-pad-y) var(--topbar-pad-x);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    position: sticky;
    top: 0;
    z-index: 50;
}

.page-title { font-size: 18px; font-weight: 700; color: #1a2535; letter-spacing: 0.3px; }
.topbar-right { font-size: 13px; color: #7f8c8d; white-space: nowrap; }

.content-area { padding: var(--page-pad-y) var(--page-pad-x); }

/* ---- Cards ---- */
.card {
    background: #fff;
    border: 1px solid #d5dce6;
    border-radius: 6px;
    margin-bottom: var(--card-gap);
    min-width: 0;
}

.card-header {
    padding: var(--card-header-pad-y) var(--card-header-pad-x);
    background: #f4f7fb;
    border-bottom: 1px solid #d5dce6;
    border-radius: 6px 6px 0 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
}

.card-title { font-size: 15px; font-weight: 700; color: #1a2535; }
.card-body  { padding: var(--card-pad); }
.card-body.tight { padding-bottom: var(--space-2); }

/* ---- Stats ---- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--grid-gap-sm);
    margin-bottom: var(--page-pad-y);
}

.stat-card {
    background: #fff;
    border: 1px solid #d5dce6;
    border-radius: 6px;
    padding: 16px 14px;
    text-align: center;
    border-top: 4px solid #2980b9;
}

.stat-card.orange { border-top-color: #e67e22; }
.stat-card.blue   { border-top-color: #2980b9; }
.stat-card.green  { border-top-color: #27ae60; }
.stat-card.purple { border-top-color: #8e44ad; }
.stat-card.teal   { border-top-color: #16a085; }

.stat-number { font-size: 28px; font-weight: 800; color: #1a2535; line-height: 1; margin-bottom: 4px; min-height: 28px; display: flex; align-items: center; justify-content: center; }
.stat-label  { font-size: 11.5px; color: #7f8c8d; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; }

/* ---- Semantic layout grids (responsive-safe) ---- */
.dash-grid   { display: grid; grid-template-columns: 1fr 1fr; gap: var(--grid-gap-lg); }
.wa-grid     { display: grid; grid-template-columns: 1fr 1fr; gap: var(--grid-gap-md); }
.users-grid  { display: grid; grid-template-columns: 2fr 1fr; gap: var(--grid-gap-lg); }
/* Flex fallback first, grid overrides when supported */
.report-summary-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--grid-gap-sm);
    margin-bottom: var(--card-gap);
}
.report-summary-grid > .stat-card { flex: 1 1 220px; }

@supports (display: grid) {
    .report-summary-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
}

/* ---- Tables ---- */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; width: 100%; }

table { width: 100%; border-collapse: collapse; font-size: 13.5px; }

thead th {
    background: #f0f4f8;
    color: #1a2535;
    font-weight: 700;
    padding: 10px 12px;
    text-align: left;
    border-bottom: 2px solid #d5dce6;
    white-space: nowrap;
    font-size: 12.5px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

tbody tr { border-bottom: 1px solid #ecf0f1; transition: background 0.1s; }
tbody tr:hover { background: #f8fafc; }
tbody td { padding: 9px 12px; color: #2c3e50; vertical-align: middle; overflow-wrap: anywhere; }

/* ---- Badge ---- */
.badge {
    display: inline-block;
    padding: 3px 9px;
    border-radius: 3px;
    font-size: 11.5px;
    font-weight: 700;
    color: #fff;
    letter-spacing: 0.3px;
    white-space: nowrap;
}

/* ---- Buttons ---- */
.btn {
    display: inline-block;
    padding: 7px 16px;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    text-decoration: none;
    transition: opacity 0.15s, background 0.15s;
    line-height: 1.4;
    white-space: nowrap;
    text-align: center;
}

.btn:hover { opacity: 0.88; }

.btn-primary   { background: #2980b9; color: #fff; }
.btn-success   { background: #27ae60; color: #fff; }
.btn-warning   { background: #e67e22; color: #fff; }
.btn-danger    { background: #c0392b; color: #fff; }
.btn-secondary { background: #7f8c8d; color: #fff; }
.btn-whatsapp  { background: #25D366; color: #fff; }
.btn-sm        { padding: 4px 10px; font-size: 12px; }
.btn-lg        { padding: 10px 16px; font-size: 14px; }
.btn-light     { background: #ecf0f1; color: #2c3e50; border: 1px solid #bdc3c7; }

/* ---- Forms ---- */
.form-grid   { display: grid; grid-template-columns: 1fr 1fr; gap: var(--grid-gap-md) var(--grid-gap-lg); }
.form-grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: var(--grid-gap-md) var(--grid-gap-lg); }

.form-group { display: flex; flex-direction: column; gap: 5px; }
.form-group.full-width { grid-column: 1 / -1; }

label { font-size: 12.5px; font-weight: 700; color: #4a5568; letter-spacing: 0.3px; }

input[type="text"],
input[type="number"],
input[type="date"],
input[type="tel"],
input[type="password"],
select,
textarea {
    padding: 8px 10px;
    border: 1px solid #bdc3c7;
    border-radius: 4px;
    font-size: 13.5px;
    color: #2c3e50;
    font-family: inherit;
    background: #fff;
    transition: border-color 0.15s;
    width: 100%;
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: #2980b9;
    box-shadow: 0 0 0 2px rgba(41,128,185,0.15);
}

textarea { resize: vertical; min-height: 70px; }
.textarea-lg { min-height: 110px; }

.password-wrap {
    position: relative;
}
.password-wrap input {
    padding-right: 44px;
}
.password-toggle {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    border: 1px solid #bdc3c7;
    background: #f4f7fb;
    color: #2c3e50;
    font-size: 11.5px;
    font-weight: 700;
    padding: 4px 8px;
    border-radius: 4px;
    cursor: pointer;
    min-width: 34px;
    height: 28px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.password-toggle:hover { opacity: 0.9; }
.password-toggle svg { width: 16px; height: 16px; display: block; }
.password-toggle .icon-hide { display: none; }
.password-toggle.is-visible .icon-show { display: none; }
.password-toggle.is-visible .icon-hide { display: block; }

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
    border: 0;
}

.option-group {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.option-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    border: 1px solid #bdc3c7;
    border-radius: 20px;
    background: #f8fafc;
    font-size: 12.5px;
    cursor: pointer;
}
.option-pill input { margin: 0; accent-color: #2980b9; }
.option-pill input:checked + span { font-weight: 700; color: #1a2535; }

.report-no {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 10px;
    border: 1px dashed #bdc3c7;
    border-radius: 6px;
    background: #f6f9fc;
    font-size: 13px;
    font-weight: 700;
    color: #1a2535;
}

.checklist-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px 14px;
    padding: 8px 10px;
    border: 1px solid #d5dce6;
    border-radius: 6px;
    background: #f8fafc;
}
.check-item {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 12.5px;
    color: #2c3e50;
}
.check-item input { margin: 0; accent-color: #2980b9; }

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.tag {
    display: inline-flex;
    align-items: center;
    padding: 5px 10px;
    border: 1px solid #d5dce6;
    border-radius: 14px;
    background: #f8fafc;
    font-size: 12px;
    font-weight: 600;
    color: #1a2535;
}

.boxed-panel {
    border: 1px solid #d5dce6;
    border-radius: 6px;
    background: #f8fafc;
    padding: 10px 12px;
}
.boxed-title {
    font-size: 12px;
    font-weight: 800;
    color: #1a2535;
    margin-bottom: 8px;
}
.boxed-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px 14px;
}

.form-actions {
    margin-top: var(--space-5);
    display: flex;
    gap: var(--space-3);
    align-items: center;
    flex-wrap: wrap;
}

/* ---- Alerts ---- */
.alert {
    padding: 11px 16px;
    border-radius: 4px;
    margin-bottom: var(--space-4);
    font-size: 13.5px;
    font-weight: 600;
    border-left: 4px solid;
}

.alert-success { background: #eafaf1; border-color: #27ae60; color: #1e8449; }
.alert-error   { background: #fdedec; border-color: #c0392b; color: #922b21; }
.alert-info    { background: #ebf5fb; border-color: #2980b9; color: #1a5276; }
.alert-warning { background: #fef9e7; border-color: #e67e22; color: #9c6003; }

/* ---- Detail View ---- */
.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--grid-gap-sm) var(--grid-gap-lg); }

.detail-item label {
    color: #7f8c8d;
    font-size: 11.5px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: block;
    margin-bottom: 2px;
}

.detail-item .value {
    font-size: 14px;
    color: #1a2535;
    font-weight: 600;
    word-break: break-word;
}

.detail-full { grid-column: 1 / -1; }

/* ---- Filter bar ---- */
.filter-bar {
    display: flex;
    gap: var(--space-3);
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: var(--space-4);
}

.filter-bar input  { flex: 1; min-width: 160px; }
.filter-bar select { min-width: 130px; }

@media (min-width: 901px) {
    .filter-bar { flex-wrap: nowrap; }
    .filter-bar input  { flex: 1 1 auto; min-width: 0; }
    .filter-bar select { flex: 0 0 180px; min-width: 180px; }
}

/* ---- Divider ---- */
.divider { border: none; border-top: 1px solid #ecf0f1; margin: var(--space-4) 0; }

/* ---- Login ---- */
.login-page {
    min-height: 100vh;
    background: #1a2535;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-5);
}

.login-box {
    background: #fff;
    border-radius: 8px;
    padding: 40px 36px;
    width: 100%;
    max-width: 360px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.3);
}

.login-logo { text-align: center; margin-bottom: 28px; }
.login-logo .icon { font-size: 48px; color: #2980b9; }
.login-logo h2 { font-size: 20px; font-weight: 800; color: #1a2535; margin-top: 6px; }
.login-logo p  { font-size: 12px; color: #7f8c8d; margin-top: 2px; }
.login-box .form-group { margin-bottom: 14px; }

/* ---- Technician Report ---- */
/* Flex fallback first, grid overrides when supported */
.tech-report-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--grid-gap-md);
    margin-bottom: var(--card-gap);
}
.tech-report-grid > .tech-card { flex: 1 1 290px; max-width: 100%; }

@supports (display: grid) {
    .tech-report-grid {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
    }
}

.tech-card {
    background: #fff;
    border: 1px solid #d5dce6;
    border-radius: 6px;
    border-top: 4px solid #2980b9;
    overflow: hidden;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.tech-card-header {
    padding: 12px 16px;
    background: #f4f7fb;
    border-bottom: 1px solid #d5dce6;
    display: flex;
    align-items: center;
    gap: 10px;
}

.tech-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: #2980b9;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    font-weight: 800;
    flex-shrink: 0;
}

.tech-name { font-size: 14px; font-weight: 700; color: #1a2535; }
.tech-role-badge { font-size: 10.5px; color: #7f8c8d; font-weight: 600; }

.tech-stats-row {
    display: flex;
    border-bottom: 1px solid #ecf0f1;
}
.tech-stats-row > .tech-stat-item { flex: 1 1 0; }

@supports (display: grid) {
    .tech-stats-row {
        display: grid;
        grid-template-columns: 1fr 1fr 1fr;
    }
}

.tech-stat-item { padding: 12px 10px; text-align: center; border-right: 1px solid #ecf0f1; }
.tech-stat-item:last-child { border-right: none; }

.tech-stat-num { font-size: 22px; font-weight: 800; color: #1a2535; line-height: 1; }
.tech-stat-num.green  { color: #27ae60; }
.tech-stat-num.blue   { color: #2980b9; }

.tech-stat-lbl {
    font-size: 10px;
    color: #7f8c8d;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.4px;
    margin-top: 3px;
}

.tech-days-row {
    padding: var(--space-3) var(--space-4);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    flex-wrap: wrap;
}

.tech-days-label { font-size: 12px; color: #4a5568; font-weight: 600; }
.tech-days-val   { font-size: 14px; font-weight: 800; color: #1a2535; }

.tech-days-bar-wrap { padding: 0 14px 12px; }
.tech-days-bar-bg   { height: 6px; background: #e8edf2; border-radius: 3px; overflow: hidden; }
.tech-days-bar-fill { height: 100%; background: linear-gradient(90deg, #2980b9, #27ae60); border-radius: 3px; }

.tech-revenue-row {
    padding: 6px 14px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid #ecf0f1;
}

.tech-service-list { padding: 0 14px 12px; border-top: 1px solid #ecf0f1; }
.tech-service-list-title {
    font-size: 11px;
    font-weight: 700;
    color: #546e7a;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin: var(--space-2) 0 var(--space-2);
}

.tech-service-list-item {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: var(--space-2) 0;
    border-bottom: 1px solid #f0f4f8;
    font-size: 12.5px;
    gap: var(--space-2);
}
.tech-service-list-item:last-child { border-bottom: none; }

/* ---- Misc ---- */
.text-right  { text-align: right; }
.text-center { text-align: center; }
.mt-10 { margin-top: 10px; }
.mt-16 { margin-top: 16px; }
.mb-16 { margin-bottom: 16px; }

.flex-gap { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }

.no-data { text-align: center; padding: 30px; color: #95a5a6; font-style: italic; }

.section-heading {
    font-size: 13px;
    font-weight: 800;
    color: #2980b9;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    border-bottom: 2px solid #ebf5fb;
    padding-bottom: 6px;
    margin-bottom: var(--space-3);
    margin-top: var(--space-1);
}

/* ---- Utilities ---- */
.btn-block { width: 100%; }
.form-stack .form-group { margin-bottom: var(--space-3); }
.form-stack .form-group:last-child { margin-bottom: 0; }

.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
}
.modal-card {
    background: #fff;
    border-radius: 6px;
    padding: var(--space-6);
    width: 100%;
    max-width: 360px;
}
.modal-title {
    margin-bottom: var(--space-4);
    font-size: 15px;
}

/* ============================================================
   RESPONSIVE BREAKPOINTS
   ============================================================ */

/* Large tablet */
@media (max-width: 1100px) {
    .stats-grid { grid-template-columns: repeat(3, 1fr); }
    .report-summary-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ---- Tablet ≤900px ---- */
@media (max-width: 900px) {
    :root {
        --page-pad-y: 14px;
        --page-pad-x: 16px;
        --card-gap: 16px;
        --card-pad: 14px;
        --card-header-pad-y: 10px;
        --card-header-pad-x: 14px;
        --grid-gap-lg: 16px;
        --grid-gap-md: 14px;
        --grid-gap-sm: 10px;
        --topbar-pad-y: 10px;
        --topbar-pad-x: 16px;
    }

    /* Show mobile bar, hide sidebar by default */
    .mobile-topbar { display: flex; }

    .sidebar { transform: translateX(-100%); width: 240px; min-width: 240px; }
    .sidebar.open { transform: translateX(0); }
    .sidebar-header { display: none; }
    .sidebar { padding-top: var(--space-3); }

    .main-content { margin-left: 0; padding-top: 52px; }
    .topbar { position: static; }
    .topbar-right .date-display { display: none; }
    .page-title { font-size: 16px; }
    /* All layout grids collapse */
    .dash-grid           { grid-template-columns: 1fr; }
    .wa-grid             { grid-template-columns: 1fr; }
    .users-grid          { grid-template-columns: 1fr; }
    .form-grid           { grid-template-columns: 1fr; }
    .form-grid-3         { grid-template-columns: 1fr 1fr; }
    .detail-grid         { grid-template-columns: 1fr; }
    .report-summary-grid { grid-template-columns: repeat(2, 1fr); }
    .tech-report-grid    { grid-template-columns: 1fr 1fr; }

    /* Stats */
    .stats-grid { grid-template-columns: repeat(3, 1fr); gap: var(--grid-gap-sm); }
    .stat-number { font-size: 22px; }
}

/* ---- Mobile ≤600px ---- */
@media (max-width: 600px) {
    :root {
        --page-pad-y: 10px;
        --page-pad-x: 12px;
        --card-gap: 14px;
        --card-pad: 12px;
        --card-header-pad-y: 10px;
        --card-header-pad-x: 12px;
        --grid-gap-lg: 14px;
        --grid-gap-md: 12px;
        --grid-gap-sm: 8px;
        --topbar-pad-y: 8px;
        --topbar-pad-x: 12px;
    }

    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: var(--grid-gap-sm); margin-bottom: var(--page-pad-y); }
    .stat-number { font-size: 20px; }
    .stat-label  { font-size: 10px; }
    .stat-card   { padding: 10px 8px; }

    .page-title { font-size: 14px; }
    .form-grid-3      { grid-template-columns: 1fr; }
    .tech-report-grid { grid-template-columns: 1fr; }
    .report-summary-grid { grid-template-columns: repeat(2, 1fr); }
    .checklist-grid { grid-template-columns: 1fr; }

    .btn    { font-size: 12.5px; padding: 6px 12px; }
    .btn-sm { font-size: 11.5px; padding: 4px 8px; }

    /* Filter bar stacks on mobile */
    .filter-bar { flex-direction: column; align-items: stretch; gap: var(--space-2); }
    .filter-bar input,
    .filter-bar select { width: 100%; min-width: unset; flex: none; }

    /* Form actions stack vertically */
    .form-actions { flex-direction: column; align-items: stretch; gap: 8px; }
    .form-actions .btn { width: 100%; }

    .section-heading { font-size: 11.5px; }

    /* Tables stay scrollable */
    table { font-size: 12.5px; }
    thead th { padding: 8px 9px; font-size: 11px; }
    tbody td { padding: 7px 9px; }
}

@media (max-width: 400px) {
    .stats-grid { grid-template-columns: 1fr 1fr; gap: 6px; }
    .stat-number { font-size: 18px; }
    .login-box { padding: 24px 14px; }
}

@media (max-width: 520px) {
    .report-summary-grid { grid-template-columns: 1fr; }
    .tech-stats-row { grid-template-columns: 1fr 1fr; }
    .tech-days-row { flex-direction: column; align-items: flex-start; gap: var(--space-1); }
}