:root {
    --primary-color: #3b82f6;
    --primary-hover: #1d4ed8;
    --primary-gradient: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    --secondary-color: #64748b;
    --bg-color: #f1f5f9;
    --card-bg: #ffffff;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --radius: 16px;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.5;
}

/* Glassmorphism effects */
.glass {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }
}

/* Auth Pages */
.auth-wrapper {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
}

.auth-card {
    background: var(--card-bg);
    padding: 2.5rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    width: 100%;
    max-width: 400px;
    animation: slideUp 0.5s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-header h1 {
    color: var(--primary-color);
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
}

/* Inputs & Buttons */
.form-group {
    margin-bottom: 1.25rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    font-size: 0.875rem;
}

input,
select,
textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.2s;
    outline: none;
}

input:focus,
select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.75rem;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    text-decoration: none;
    gap: 0.6rem;
    font-size: 0.95rem;
}

.btn:active {
    transform: scale(0.96);
}

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    box-shadow: 0 4px 14px 0 rgba(59, 130, 246, 0.39);
}

.btn-primary:hover {
    box-shadow: 0 10px 20px rgba(59, 130, 246, 0.4);
    background: var(--primary-hover);
    transform: translateY(-2px);
}

.btn-block {
    width: 100%;
}

/* Dashboard & Tables */
.nav {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    padding: 0.75rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
    color: white;
}

@media (max-width: 768px) {
    .nav {
        padding: 0.75rem 1rem;
        flex-direction: column;
        gap: 0.75rem;
        text-align: center;
    }

    .user-info {
        display: flex;
        justify-content: center;
        width: 100%;
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .user-info span {
        width: 100%;
        margin-bottom: 0.25rem;
    }

    .user-info .btn {
        margin-left: 0 !important;
        flex: 1;
        min-width: 120px;
    }
}

.logo {
    display: flex;
    align-items: center;
    font-weight: 800;
    font-size: 1.5rem;
    color: white;
    text-decoration: none;
    gap: 0.5rem;
}

.logo img {
    height: 40px;
    margin-right: 0.5rem;
    filter: brightness(0) invert(1);
    /* Ensure white logo if image is not white */
}

.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
}

.table-container {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow-x: auto;
    margin-top: 1.5rem;
    -webkit-overflow-scrolling: touch;
}

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 600px;
}

th {
    background: #f8fafc;
    padding: 1rem;
    text-align: left;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

td {
    padding: 1rem;
    border-top: 1px solid var(--border-color);
}

tr {
    transition: background-color 0.2s ease;
}

tr:hover {
    background-color: #f8fafc;
}

.card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid rgba(226, 232, 240, 0.5);
}

.card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    border-color: var(--primary-color);
}

/* Status Badges */
.badge {
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-pending {
    background: #fef3c7;
    color: #92400e;
}

.badge-completed {
    background: #d1fae5;
    color: #065f46;
}

/* Modal/Overlays */
.overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

/* Grid Layout for Result Inputs */
.results-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 1rem;
    align-items: center;
    padding: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

@media (max-width: 768px) {
    .results-grid {
        grid-template-columns: 1fr;
        gap: 0.5rem;
        padding: 1.5rem 1rem;
    }

    .results-header {
        display: none;
    }

    .results-grid div::before {
        content: attr(data-label);
        display: block;
        font-weight: bold;
        font-size: 0.75rem;
        color: var(--text-muted);
        margin-bottom: 0.25rem;
        text-transform: uppercase;
    }
}

.results-header {
    font-weight: bold;
    background: #f1f5f9;
    border-radius: 8px 8px 0 0;
}

/* Utilities */
.btn-group {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
}

.flex-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

@media (max-width: 768px) {
    .flex-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .flex-header .btn-group {
        display: flex;
        flex-wrap: wrap;
        width: 100%;
        gap: 0.5rem;
    }

    .flex-header .btn {
        flex: 1;
        min-width: calc(50% - 0.5rem);
    }
}

.input-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

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

.param-row {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1fr 1fr 0.5fr 50px;
    gap: 0.5rem;
    align-items: end;
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}

@media (max-width: 992px) {
    .param-row {
        grid-template-columns: 1fr 1fr;
        gap: 1rem;
        padding: 1.5rem 1rem;
    }

    .param-header {
        display: none !important;
    }

    .param-row input {
        width: 100%;
    }

    .param-row>*::before {
        content: attr(data-label);
        display: block;
        font-weight: bold;
        font-size: 0.75rem;
        color: var(--text-muted);
        margin-bottom: 0.25rem;
        text-transform: uppercase;
    }

    .param-row button[name="delete_param"] {
        grid-column: span 2;
        text-align: right;
        padding: 0.5rem;
        background: #fee2e2 !important;
        border-radius: 8px;
    }

    .param-row button[name="delete_param"]::before {
        content: "Eliminar";
        display: inline-block;
        margin-right: 0.5rem;
    }
}

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

    .param-row button[name="delete_param"] {
        grid-column: span 1;
    }
}

/* Report Specific Responsiveness (Display) */
@media (max-width: 768px) {
    .patient-info-box {
        grid-template-columns: 1fr !important;
        gap: 0.75rem !important;
    }

    .view-report-results {
        grid-template-columns: 1fr !important;
    }
}

/* Pagination & DataTables style */
.pagination {
    display: flex;
    padding-left: 0;
    list-style: none;
    border-radius: 0.25rem;
    gap: 0.25rem;
}

.page-link {
    position: relative;
    display: block;
    padding: 0.3rem 0.75rem;
    margin-left: -1px;
    line-height: 1.25;
    color: var(--primary-color);
    background-color: #fff;
    border: 1px solid #dee2e6;
    border-radius: 4px;
    text-decoration: none;
    font-size: 0.875rem;
    cursor: pointer;
}

.page-link:hover {
    z-index: 2;
    color: var(--primary-hover);
    text-decoration: none;
    background-color: #e9ecef;
    border-color: #dee2e6;
}

.page-link.active {
    z-index: 3;
    color: #fff;
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.page-link.disabled {
    color: #6c757d;
    pointer-events: none;
    cursor: auto;
    background-color: #fff;
    border-color: #dee2e6;
}

table.datatable {
    border-spacing: 0;
    border-collapse: separate;
    border-radius: 8px 8px 0 0;
    overflow: hidden;
}

table.datatable thead th {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: white;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.5px;
    padding: 1rem;
    border: none;
}

table.datatable tbody tr.odd {
    background-color: #f8fafc;
}

table.datatable tbody tr.even {
    background-color: #ffffff;
}

table.datatable tbody tr:hover {
    background-color: #eff6ff;
}

table.datatable td {
    border-top: 1px solid #f1f5f9;
    padding: 0.75rem 1rem;
    vertical-align: middle;
}