:root {
    --brand-900: #0f2742;
    --brand-700: #1c4f7a;
    --brand-500: #2c75a7;
    --accent-500: #12a37d;
    --accent-100: #e6f7f2;
    --surface-0: #f4f7fb;
    --surface-1: #ffffff;
    --surface-2: #eef2f7;
    --line: #d8e1ec;
    --text-900: #10233a;
    --text-600: #4a617a;
    --shadow: 0 10px 24px rgba(12, 34, 58, 0.12);
    --radius-lg: 16px;
    --radius-md: 12px;
    --radius-sm: 10px;
}

* {
    box-sizing: border-box;
}

html,
body {
    height: 100%;
    max-width: 100%;
    overflow-x: hidden;
}

body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    margin: 0;
    color: var(--text-900);
    background:
        radial-gradient(circle at 8% 8%, #dbefff 0%, transparent 34%),
        radial-gradient(circle at 85% 0%, #dbf6ee 0%, transparent 28%),
        linear-gradient(180deg, #f7fbff 0%, #eef3f9 100%);
    font-family: "Segoe UI", "Trebuchet MS", Tahoma, sans-serif;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--brand-900);
    font-weight: 700;
}

.header-container,
.center-body,
.left-side-panel,
.right-side-panel,
.news-container,
.quick-links-section,
.crousal-section,
.login-form-elements,
#usersDetails,
#teachersDetails,
#table-body,
#fee-details-container,
#fee-history-dynamic-container,
#concession-history-dynamic-container {
    border-radius: var(--radius-lg);
}

.body-container {
    flex: 1 1 auto;
    min-height: 0;
    gap: 12px;
    padding: 12px;
}

.header-container,
.body-container,
.footer-container {
    width: min(1700px, 98vw) !important;
    margin-inline: auto;
}

.left-side-panel,
.right-side-panel,
.center-body {
    background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
}

.left-side-panel,
.center-body,
.right-side-panel {
    padding: 14px;
}

/* Auto-remove blank side rails used in legacy templates */
.left-side-panel:empty,
.right-side-panel:empty {
    display: none !important;
    width: 0 !important;
    min-width: 0 !important;
    padding: 0 !important;
    margin: 0 !important;
    border: 0 !important;
    box-shadow: none !important;
    background: transparent !important;
}

.left-side-panel:empty + .center-body {
    width: 100% !important;
    margin-left: 0 !important;
}

.left-side-panel:empty + .center-body + .right-side-panel:empty {
    display: none !important;
}

table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background: var(--surface-1);
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: 0 6px 16px rgba(13, 39, 67, 0.08);
}

table tr {
    display: table-row !important;
}

th,
td {
    border: none !important;
    border-bottom: 1px solid var(--line) !important;
    padding: 10px 12px;
    font-size: 0.92rem;
    vertical-align: middle;
}

th {
    background: linear-gradient(180deg, #1f4f78 0%, #143b5d 100%) !important;
    color: #fff !important;
    font-weight: 600;
    letter-spacing: 0.2px;
}

thead th {
    position: sticky;
    top: 0;
    z-index: 2;
}

tbody tr:nth-child(even) {
    background-color: #f7fbff;
}

tbody tr:hover {
    background-color: #eaf4ff;
}

input[type="text"],
input[type="number"],
input[type="date"],
input[type="password"],
input[type="email"],
input[type="tel"],
input[type="search"],
select,
textarea {
    width: auto;
    max-width: 100%;
    display: inline-block;
    border: 1px solid #c8d6e6;
    background: #fff;
    color: var(--text-900);
    border-radius: var(--radius-sm);
    min-height: 40px;
    padding: 8px 12px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--brand-500);
    box-shadow: 0 0 0 3px rgba(44, 117, 167, 0.15);
}

input[type="checkbox"],
input[type="radio"] {
    accent-color: var(--accent-500);
}

button,
input[type="button"],
input[type="submit"],
.btn {
    border-radius: 10px !important;
    border: none;
    min-height: 38px;
    padding: 8px 16px;
    font-weight: 600;
    letter-spacing: 0.2px;
}

.btn-success,
input[type="submit"],
input[type="button"] {
    background: linear-gradient(135deg, var(--accent-500), #1eb58c);
    color: #fff;
}

.btn-warning {
    background: linear-gradient(135deg, #f5a524, #e2870f);
    color: #fff;
}

.container,
.container-fluid {
    max-width: 100%;
}

.card,
.news-item,
#classList > li,
#classList > div {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    box-shadow: 0 8px 18px rgba(15, 39, 66, 0.08);
}

img {
    max-width: 100%;
    height: auto;
}

@media (max-width: 1024px) {
    .body-container {
        flex-direction: column;
        padding: 10px;
    }

    .left-side-panel,
    .center-body,
    .right-side-panel {
        width: 100% !important;
        margin: 0 !important;
    }
}

@media (max-width: 768px) {
    body {
        background:
            radial-gradient(circle at 10% 8%, #e4f4ff 0%, transparent 28%),
            linear-gradient(180deg, #f8fbff 0%, #eef4fb 100%);
    }

    table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }

    .body-container {
        padding: 8px;
        gap: 8px;
    }
}

/* App-wide consistency overrides for legacy page CSS */
body {
    background:
        radial-gradient(circle at 8% 8%, #dbefff 0%, transparent 34%),
        radial-gradient(circle at 85% 0%, #dbf6ee 0%, transparent 28%),
        linear-gradient(180deg, #f7fbff 0%, #eef3f9 100%) !important;
    margin: 0 !important;
}

.header-container {
    width: 100% !important;
    height: auto !important;
    padding: 8px 10px 0 !important;
}

.body-container {
    width: 100% !important;
    height: auto !important;
    min-height: calc(100vh - 150px);
    flex: 1;
    display: flex !important;
    justify-content: center !important;
    align-items: stretch;
}

.footer-container {
    width: 100% !important;
    height: auto !important;
    margin-top: auto;
}

.footer-container:empty {
    display: none;
}

.center-body {
    width: 100% !important;
    height: auto !important;
    min-height: 60vh;
    border-radius: var(--radius-lg);
    border: 1px solid var(--line);
    background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%) !important;
    box-shadow: var(--shadow);
}

.main-container,
.sub-container,
.container {
    border-radius: var(--radius-lg);
}

.sub-container,
.container {
    border: 1px solid var(--line);
    background: #fff;
    box-shadow: 0 10px 22px rgba(13, 36, 58, 0.1);
}

.list-container,
.filter-container,
.option-container,
.search-form,
.actions-pane,
.selector,
.actions {
    gap: 10px;
}

.option-container,
.filter-container,
.search-form {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    background: #f4f9ff !important;
    border: 1px solid #d5e4f3;
    border-radius: 12px;
    padding: 10px;
}

.filter-input,
.input-items,
.option-container .selectors input,
.option-container .selectors select,
.option-container .selectors button,
.input-section input,
.input-section button {
    width: auto !important;
    margin-right: 8px;
}

.school-name-container h2,
.school-name-container h6 {
    color: #17486f !important;
}

#classList,
.items-container,
.details-div,
.class-details-body,
.fixTableHead {
    overflow: auto;
    border: 1px solid #d2e1f0;
    border-radius: 12px;
    background: #fff;
    padding: 8px;
}

.main,
.table-container {
    overflow: auto;
}

#popup,
#addFeesPopup {
    border: 1px solid #cfe0ef !important;
    border-radius: 14px !important;
    background: #fff !important;
}

.news-container {
    border: 1px solid #d5e5f3 !important;
    border-radius: 14px !important;
    background: #ffffff !important;
    box-shadow: 0 10px 20px rgba(12, 35, 56, 0.12) !important;
}

@media (max-width: 768px) {
    .header-container {
        padding: 6px 6px 0 !important;
    }

    .center-body,
    .left-side-panel,
    .right-side-panel {
        min-height: auto;
        padding: 10px !important;
    }

    .search-form div {
        width: auto !important;
        margin: 6px 8px 6px 0 !important;
    }
}