/* Scroll eBooks Custom Styles */

/* CSS Variables moved to tokens.css */

/* Reset and base styles */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background-white);
    margin: 0;
    padding: 0;
}

/* Container and layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.container-center {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 2rem 1rem;
}

.flex-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

/* Typography */
.text-center {
    text-align: center;
}

h1 {
    color: #005CB8;
    margin: 0;
    padding: 0;
    font-weight: normal;
}

h2 {
    color: #005CB8;
    margin: 0;
    padding: 0;
    font-weight: normal;
}

h2.tab-header { padding: 0 1rem; text-align: center; display: inline-block; border-bottom: 0.125rem solid var(--primary-blue); }

h3 {
    color: #005CB8;
    margin: 0;
    padding: 0;
    font-weight: normal;
}

.text-primary {
    color: var(--text-primary);
}

.text-error {
    color: var(--primary-error);
}

/* Logo and branding */
.logo {
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-image {
    width: 170px;
    height: 85px;
    display: block;
}

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

/* Cards and forms */
.card {
    padding: 0;
    max-width: 350px;
}

.form-label {
    display: block;
    font-weight: 500;
    color: var(--text-primary);
}

.form-input {
    width: 100%;
    padding: 1.25rem 1rem;
    border: 1px solid var(--text-border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgb(37 99 235 / 0.1);
}

.form-input[aria-invalid="true"] {
    border-color: var(--primary-error);
}

.form-input[aria-invalid="true"]:focus {
    border-color: var(--primary-error);
    box-shadow: 0 0 0 3px rgba(255, 0, 0, 0.1);
}

/* Ensure non text-input selects show error when wrapper has error */
.form-group.error .form-input {
    border-color: var(--primary-error);
}

.form-input::placeholder {
    color: var(--text-placeholder-color);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    width: 100%;
}

.btn:hover { text-decoration: underline; }
.btn:active { transform: translateY(0); }
.btn:disabled {
    background-color: #87A4D1;
    color: #fff;
    cursor: not-allowed;
}
.btn:disabled:hover {
    text-decoration: none;
    transform: none;
}

.btn-primary {
    background-color: var(--primary-blue);
    color: white;
}

.btn-secondary {
    background-color: var(--background-white);
    color: var(--primary-blue);
    border: 1px solid var(--primary-blue);
}

/* Disabled secondary button style */
.btn-secondary:disabled,
.btn-secondary[aria-disabled="true"] {
    background-color: #DFDFDF;
    color: #6F6F6F;
    border-color: #DFDFDF;
    cursor: not-allowed;
}
.btn-secondary:disabled:hover,
.btn-secondary[aria-disabled="true"]:hover {
    text-decoration: none;
}

/* Button loading spinner */
.btn .spinner {
    display: none;
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255, 255, 255, 0.6);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-right: 8px;
    vertical-align: -2px;
}

.btn.is-loading .spinner {
    display: inline-block;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

a {
    background: none;
    color: var(--primary-blue);
    text-decoration: underline;
    width: auto;
}

.alert-error {
    color: var(--primary-error);
}

.alert-success {
    color: var(--primary-success);
}

.alert-error:focus-visible {
    outline: 2px solid var(--primary-error);
    outline-offset: 2px;
    border-radius: var(--border-radius);
}

/* Spacing utilities */
.mb-0 { margin-bottom: 0; }
.mb-5 { margin-bottom: 0.3125rem; }
.mb-8 { margin-bottom: 0.5rem; }
.mb-10 { margin-bottom: 0.625rem; }
.mb-12 { margin-bottom: 0.75rem; }
.mb-15 { margin-bottom: 0.9375rem; }
.mb-16 { margin-bottom: 1rem; }
.mb-20 { margin-bottom: 1.25rem; }
.mb-25 { margin-bottom: 1.5625rem; }
.mb-30 { margin-bottom: 1.875rem; }
.mb-35 { margin-bottom: 2.1875px; }
.mb-40 { margin-bottom: 2.5rem; }
.mb-auto { margin-bottom: auto; }

.mt-0 { margin-top: 0; }
.mt-5 { margin-top: 0.3125rem; }
.mt-8 { margin-top: 0.5rem; }
.mt-10 { margin-top: 0.625rem; }
.mt-12 { margin-top: 0.75rem; }
.mt-15 { margin-top: 0.9375rem; }
.mt-16 { margin-top: 1rem; }
.mt-20 { margin-top: 1.25rem; }
.mt-25 { margin-top: 1.5625rem; }
.mt-30 { margin-top: 1.875rem; }
.mt-35 { margin-top: 2.1875px; }
.mt-40 { margin-top: 2.5rem; }
.mt-auto { margin-top: auto; }

.ml-0 { margin-left: 0; }
.ml-5 { margin-left: 0.3125rem; }
.ml-8 { margin-left: 0.5rem; }
.ml-10 { margin-left: 0.625rem; }
.ml-12 { margin-left: 0.75rem; }
.ml-15 { margin-left: 0.9375rem; }
.ml-16 { margin-left: 1rem; }
.ml-20 { margin-left: 1.25rem; }
.ml-25 { margin-left: 1.5625rem; }
.ml-30 { margin-left: 1.875rem; }
.ml-35 { margin-left: 2.1875px; }
.ml-40 { margin-left: 2.5rem; }
.ml-auto { margin-left: auto; }

.mr-0 { margin-right: 0; }
.mr-5 { margin-right: 0.3125rem; }
.mr-8 { margin-right: 0.5rem; }
.mr-10 { margin-right: 0.625rem; }
.mr-12 { margin-right: 0.75rem; }
.mr-15 { margin-right: 0.9375rem; }
.mr-16 { margin-right: 1rem; }
.mr-20 { margin-right: 1.25rem; }
.mr-25 { margin-right: 1.5625rem; }
.mr-30 { margin-right: 1.875rem; }
.mr-35 { margin-right: 2.1875px; }
.mr-40 { margin-right: 2.5rem; }
.mr-auto { margin-right: auto; }

.pb-0 { padding-bottom: 0; }
.pb-5 { padding-bottom: 0.3125rem; }
.pb-8 { padding-bottom: 0.5rem; }
.pb-10 { padding-bottom: 0.625rem; }
.pb-12 { padding-bottom: 0.75rem; }
.pb-15 { padding-bottom: 0.9375rem; }
.pb-20 { padding-bottom: 1.25rem; }
.pb-25 { padding-bottom: 1.5625rem; }
.pb-30 { padding-bottom: 1.875rem; }
.pb-35 { padding-bottom: 2.1875px; }
.pb-40 { padding-bottom: 2.5rem; }
.pb-auto { padding-bottom: auto; }

.pt-0 { padding-top: 0; }
.pt-5 { padding-top: 0.3125rem; }
.pt-8 { padding-top: 0.5rem; }
.pt-10 { padding-top: 0.625rem; }
.pt-12 { padding-top: 0.75rem; }
.pt-15 { padding-top: 0.9375rem; }
.pt-20 { padding-top: 1.25rem; }
.pt-25 { padding-top: 1.5625rem; }
.pt-30 { padding-top: 1.875rem; }
.pt-35 { padding-top: 2.1875px; }
.pt-40 { padding-top: 2.5rem; }
.pt-auto { padding-top: auto; }

.pl-0 { padding-left: 0; }
.pl-5 { padding-left: 0.3125rem; }
.pl-8 { padding-left: 0.5rem; }
.pl-10 { padding-left: 0.625rem; }
.pl-12 { padding-left: 0.75rem; }
.pl-15 { padding-left: 0.9375rem; }
.pl-20 { padding-left: 1.25rem; }
.pl-25 { padding-left: 1.5625rem; }
.pl-30 { padding-left: 1.875rem; }
.pl-35 { padding-left: 2.1875px; }
.pl-40 { padding-left: 2.5rem; }
.pl-auto { padding-left: auto; }

.pr-0 { padding-right: 0; }
.pr-5 { padding-right: 0.3125rem; }
.pr-8 { padding-right: 0.5rem; }
.pr-10 { padding-right: 0.625rem; }
.pr-12 { padding-right: 0.75rem; }
.pr-15 { padding-right: 0.9375rem; }
.pr-20 { padding-right: 1.25rem; }
.pr-25 { padding-right: 1.5625rem; }
.pr-30 { padding-right: 1.875rem; }
.pr-35 { padding-right: 2.1875px; }
.pr-40 { padding-right: 2.5rem; }
.pr-auto { padding-right: auto; }

.text-24 { font-size: 1.5rem; }  /* 24px */
.text-22 { font-size: 1.375rem; } /* 22px */
.text-20 { font-size: 1.25rem; }  /* 20px */
.text-18 { font-size: 1.125rem; line-height: 1.5rem; } /* 18px */
.text-16 { font-size: 1rem; }     /* 16px */
.text-14 { font-size: 0.875rem; } /* 14px */
.text-13 { font-size: 0.8125rem; } /* 13px */
.text-12 { font-size: 0.75rem; }  /* 12px */

.text-600 { font-weight: 600; }
.text-700 { font-weight: 700; }
.text-italic { font-style: italic; }

.text-primary { color: var(--text-primary); }

/* Footer */
.footer {
    text-align: center;
}

/* Animation utilities */
.fade-in {
    animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Focus states for accessibility */
.btn:focus,
.form-input:focus,
.btn-link:focus {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --border-color: #000000;
        --text-secondary: #000000;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Modal Framework Styles */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.modal[aria-hidden="true"] {
    display: none;
}

.modal__backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    cursor: default;
}

.modal__container {
    position: relative;
    background: var(--background-white);
    border-radius: var(--border-radius);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    width: 350px;
    max-height: 90vh;
    overflow-y: auto;
    z-index: 1001;
}

.modal__content {
    padding: 2rem;
    padding-top: 3rem; /* Extra padding at top to account for close button */
}

.modal__close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 1.5rem;
    line-height: 1;
    color: var(--text-primary);
    cursor: pointer;
    padding: 0.5rem;
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1003;
    border-radius: 50%;
    transition: background-color 0.2s ease;
}

.modal__close:hover {
    background-color: rgba(0, 0, 0, 0.1);
    color: var(--primary-blue);
}

.modal__close:focus {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
}

/* Modal Content Styles */

.modal-section-title {
    margin: 1.5rem 0 0.75rem 0;
    font-weight: 600;
    font-size: 1rem;
    color: var(--text-primary);
    font-family: 'Montserrat', sans-serif;
}

.modal-list {
    padding-left: 1.5rem;
    list-style-type: disc;
}

.modal-actions {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* Form display styles */
.form-input-display {
    background-color: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 0.375rem;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    color: #495057;
    font-family: 'Montserrat', sans-serif;
    margin-bottom: 1rem;
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
}

.checkbox-group input[type="checkbox"] {
    margin: 0;
    flex-shrink: 0;
}

.checkbox-group label {
    margin: 0;
    line-height: 1rem;
    cursor: pointer;
}

.checkbox-group a {
    color: #005CB8;
    text-decoration: underline;
}

.checkbox-group a:hover {
    text-decoration: underline;
}

/* Responsive modal */
@media (max-width: 640px) {
    .modal {
        padding: 0.5rem;
    }
    
    .modal__content {
        padding: 1.5rem;
    }
    
    .modal__close {
        top: 0.5rem;
        right: 0.5rem;
    }
}