/* =========================================
   CURIS FAQ CSS
   Modern & Professional Healthcare Platform Styling
   ========================================= */

/* -----------------------------------------
   1. FONTS & BASE STYLES
   ----------------------------------------- */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');
@import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css');

:root {
    /* Brand Colors */
    --primary-navy: #1D2A3B;
    --accent-teal: #00BFA5;
    --secondary-orange: #FF6B35;
    --neutral-light: #F5F5F7;
    --neutral-dark: #333333;
    --white: #FFFFFF;
    --light-gray: #E5E5E5;
    --medium-gray: #757575;

    /* Semantic Colors */
    --text-primary: var(--neutral-dark);
    --text-secondary: var(--primary-navy);
    --text-accent: var(--accent-teal);
    --background-primary: var(--white);
    --background-secondary: var(--neutral-light);
    --link-color: var(--accent-teal);
    --link-hover: var(--primary-navy);

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;

    /* Typography */
    --font-primary: 'Poppins', sans-serif;

    /* Border Radius */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;

    /* Container Width */
    --container-width: 1200px;

    /* Shadows */
    --shadow-sm: 0 2px 5px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 20px rgba(0, 0, 0, 0.12);
}

/* Dark Mode Colors */
[data-theme="dark"] {
    --primary-navy: #2D3B4D;
    --text-primary: #E5E5E5;
    --text-secondary: #F5F5F7;
    --background-primary: #121212;
    --background-secondary: #1E1E1E;
    --light-gray: #2A2A2A;
    --medium-gray: #A0A0A0;
    --shadow-sm: 0 2px 5px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.25);
    --shadow-lg: 0 8px 20px rgba(0, 0, 0, 0.3);
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background-primary);
    transition: background-color var(--transition-medium), color var(--transition-medium);
}

/* -----------------------------------------
      2. TYPOGRAPHY
      ----------------------------------------- */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-primary);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
    line-height: 1.3;
}

h1 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-xl);
    color: var(--primary-navy);
    text-align: center;
}

h2 {
    font-size: 1.8rem;
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--accent-teal);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    display: inline-block;
}

h3 {
    font-size: 1.3rem;
    margin-top: var(--spacing-lg);
    color: var(--primary-navy);
    border-left: 4px solid var(--accent-teal);
    padding-left: var(--spacing-md);
}

h4 {
    font-size: 1.1rem;
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    cursor: pointer;
    position: relative;
    display: flex;
    align-items: center;
    transition: color var(--transition-fast);
}

p {
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--link-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover,
a:focus {
    color: var(--link-hover);
    text-decoration: underline;
}

strong {
    font-weight: 600;
    color: var(--text-secondary);
}

em {
    font-style: italic;
    color: var(--accent-teal);
}

ul,
ol {
    margin-bottom: var(--spacing-lg);
    padding-left: var(--spacing-xl);
}

li {
    margin-bottom: var(--spacing-sm);
}

/* -----------------------------------------
      3. LAYOUT & CONTAINERS
      ----------------------------------------- */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

main {
    padding: var(--spacing-xl) var(--spacing-lg);
    max-width: 900px;
    margin: 0 auto;
}

section {
    margin-bottom: var(--spacing-xxl);
}

/* Screen Reader Text */
.screen-reader-text {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* -----------------------------------------
      4. HEADER & NAVIGATION
      ----------------------------------------- */
header {
    background-color: var(--white);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: background-color var(--transition-medium);
}

[data-theme="dark"] header {
    background-color: var(--primary-navy);
    box-shadow: var(--shadow-md);
}

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

.logo-container img {
    height: 40px;
    width: auto;
}

.main-navigation ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

.main-navigation li {
    margin: 0 0 0 var(--spacing-xl);
}

.main-navigation a {
    font-weight: 500;
    font-size: 1rem;
    color: var(--primary-navy);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-md);
    transition: all var(--transition-fast);
}

[data-theme="dark"] .main-navigation a {
    color: var(--white);
}

.main-navigation a:hover,
.main-navigation a:focus {
    background-color: var(--accent-teal);
    color: var(--white);
    text-decoration: none;
}

/* -----------------------------------------
      5. FAQ CONTENT STYLING
      ----------------------------------------- */
.faq-container {
    background-color: var(--background-primary);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    transition: background-color var(--transition-medium), box-shadow var(--transition-medium);
}

[data-theme="dark"] .faq-container {
    box-shadow: var(--shadow-lg);
}

.faq-header {
    text-align: center;
    margin-bottom: var(--spacing-xxl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--light-gray);
}

.faq-header p {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.1rem;
}

/* Search Section */
.search-section {
    background-color: var(--background-secondary);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-xxl);
    text-align: center;
}

.search-bar {
    max-width: 700px;
    margin: var(--spacing-lg) auto 0;
    position: relative;
}

.search-bar input[type="search"] {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    border: 2px solid var(--light-gray);
    border-radius: var(--border-radius-lg);
    font-family: var(--font-primary);
    font-size: 1rem;
    background-color: var(--white);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

[data-theme="dark"] .search-bar input[type="search"] {
    background-color: var(--primary-navy);
    color: var(--white);
    border-color: var(--medium-gray);
}

.search-bar input[type="search"]:focus {
    outline: none;
    border-color: var(--accent-teal);
    box-shadow: 0 0 0 3px rgba(0, 191, 165, 0.2);
}

.search-button {
    position: absolute;
    right: var(--spacing-xs);
    top: 50%;
    transform: translateY(-50%);
    background-color: var(--accent-teal);
    color: white;
    border: none;
    border-radius: var(--border-radius-md);
    padding: var(--spacing-sm) var(--spacing-lg);
    cursor: pointer;
    font-family: var(--font-primary);
    font-weight: 500;
    transition: background-color var(--transition-fast);
}

.search-button:hover,
.search-button:focus {
    background-color: #00a58e;
}

/* Categories Section */
.categories-section {
    margin-top: var(--spacing-xxl);
}

.faq-category {
    margin-bottom: var(--spacing-xxl);
    padding: var(--spacing-lg);
    background-color: var(--background-primary);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-medium), box-shadow var(--transition-medium);
}

.faq-category:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

/* FAQ Items */
.faq-item {
    border-bottom: 1px solid var(--light-gray);
    padding: var(--spacing-md) 0;
    transition: background-color var(--transition-medium);
}

.faq-item:last-child {
    border-bottom: none;
}

.faq-item h4 {
    padding-right: 30px;
}

.faq-item h4::after {
    content: "\f107";
    /* Font Awesome down arrow */
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    position: absolute;
    right: 0;
    transition: transform var(--transition-medium);
}

.faq-item.active h4::after {
    transform: rotate(180deg);
}

.faq-item h4:hover {
    color: var(--accent-teal);
}

.faq-answer {
    padding: var(--spacing-sm) 0 var(--spacing-md);
    display: none;
    animation: fadeIn 0.5s ease;
}

.faq-item.active .faq-answer {
    display: block;
}

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

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

/* Support Section */
.support-section {
    background-color: var(--background-secondary);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    margin-top: var(--spacing-xxl);
}

.support-resources {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.support-resources h3 {
    border-left: none;
    position: relative;
    padding-bottom: var(--spacing-sm);
}

.support-resources h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    height: 2px;
    width: 60px;
    background-color: var(--accent-teal);
}

/* -----------------------------------------
      6. FOOTER STYLING
      ----------------------------------------- */
footer {
    background-color: var(--primary-navy);
    color: var(--white);
    padding-top: var(--spacing-xl);
    margin-top: var(--spacing-xxl);
}

.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 var(--spacing-xl) var(--spacing-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.dark-mode-toggle button {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--white);
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    padding: var(--spacing-sm);
}

.dark-mode-icon {
    width: 24px;
    height: 24px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23FFFFFF'%3E%3Cpath d='M12 7c-2.76 0-5 2.24-5 5s2.24 5 5 5 5-2.24 5-5-2.24-5-5-5zM2 13h2c.55 0 1-.45 1-1s-.45-1-1-1H2c-.55 0-1 .45-1 1s.45 1 1 1zm18 0h2c.55 0 1-.45 1-1s-.45-1-1-1h-2c-.55 0-1 .45-1 1s.45 1 1 1zM11 2v2c0 .55.45 1 1 1s1-.45 1-1V2c0-.55-.45-1-1-1s-1 .45-1 1zm0 18v2c0 .55.45 1 1 1s1-.45 1-1v-2c0-.55-.45-1-1-1s-1 .45-1 1zM5.99 4.58c-.39-.39-1.03-.39-1.41 0-.39.39-.39 1.03 0 1.41l1.06 1.06c.39.39 1.03.39 1.41 0s.39-1.03 0-1.41L5.99 4.58zm12.37 12.37c-.39-.39-1.03-.39-1.41 0-.39.39-.39 1.03 0 1.41l1.06 1.06c.39.39 1.03.39 1.41 0 .39-.39.39-1.03 0-1.41l-1.06-1.06zm1.06-10.96c.39-.39.39-1.03 0-1.41-.39-.39-1.03-.39-1.41 0l-1.06 1.06c-.39.39-.39 1.03 0 1.41s1.03.39 1.41 0l1.06-1.06zM7.05 18.36c.39-.39.39-1.03 0-1.41-.39-.39-1.03-.39-1.41 0l-1.06 1.06c-.39.39-.39 1.03 0 1.41s1.03.39 1.41 0l1.06-1.06z'/%3E%3C/svg%3E");
    background-position: center;
    background-repeat: no-repeat;
    transition: transform var(--transition-medium);
}

[data-theme="dark"] .dark-mode-icon {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23FFFFFF'%3E%3Cpath d='M12 3c-4.97 0-9 4.03-9 9s4.03 9 9 9 9-4.03 9-9c0-.46-.04-.92-.1-1.36-.98 1.37-2.58 2.26-4.4 2.26-2.98 0-5.4-2.42-5.4-5.4 0-1.81.89-3.42 2.26-4.4-.44-.06-.9-.1-1.36-.1z'/%3E%3C/svg%3E");
    transform: rotate(180deg);
}

.social-media {
    display: flex;
    gap: var(--spacing-md);
}

.social-media a {
    color: var(--white);
    font-size: 1.3rem;
    transition: color var(--transition-fast);
}

.social-media a:hover {
    color: var(--accent-teal);
}

.footer-middle {
    display: flex;
    justify-content: space-around;
    padding: var(--spacing-xl);
    flex-wrap: wrap;
}

.footer-section {
    min-width: 200px;
    margin-bottom: var(--spacing-lg);
}

.footer-section h4 {
    color: var(--white);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--accent-teal);
    display: inline-block;
}

.footer-section ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    display: block;
    padding: var(--spacing-xs) 0;
    transition: color var(--transition-fast);
}

.footer-section a:hover {
    color: var(--accent-teal);
    text-decoration: none;
}

.footer-bottom {
    background-color: rgba(0, 0, 0, 0.2);
    text-align: center;
    padding: var(--spacing-md);
    font-size: 0.9rem;
}

/* -----------------------------------------
      7. INTERACTIVE ELEMENTS
      ----------------------------------------- */
/* Contact Info Icons */
a[href^="mailto:"]::before {
    content: "\f0e0";
    /* Font Awesome email icon */
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    margin-right: var(--spacing-sm);
}

p:has(a[href^="tel:"]) {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

p:has(a[href^="tel:"]):before {
    content: "\f095";
    /* Font Awesome phone icon */
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
}

/* Hover Effects for FAQ Categories */
.faq-category h3 {
    transition: transform var(--transition-medium);
}

.faq-category:hover h3 {
    transform: translateX(var(--spacing-sm));
}

/* Active Question State */
.faq-item.active {
    background-color: rgba(0, 191, 165, 0.05);
    border-radius: var(--border-radius-sm);
    padding-left: var(--spacing-sm);
    padding-right: var(--spacing-sm);
}

[data-theme="dark"] .faq-item.active {
    background-color: rgba(0, 191, 165, 0.1);
}

/* -----------------------------------------
      8. ANIMATIONS & EFFECTS
      ----------------------------------------- */
@keyframes slideInUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }

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

.faq-container {
    animation: slideInUp 0.6s ease-out forwards;
}

.faq-category {
    animation: slideInUp 0.6s ease-out forwards;
    animation-delay: calc(var(--animation-order, 0) * 0.1s);
    opacity: 0;
    animation-fill-mode: forwards;
}

.faq-category:nth-child(1) {
    --animation-order: 1;
}

.faq-category:nth-child(2) {
    --animation-order: 2;
}

.faq-category:nth-child(3) {
    --animation-order: 3;
}

.faq-category:nth-child(4) {
    --animation-order: 4;
}

.faq-category:nth-child(5) {
    --animation-order: 5;
}

/* Highlight on Hover */
.faq-item {
    position: relative;
}

.faq-item::before {
    content: '';
    position: absolute;
    left: -12px;
    top: 0;
    height: 100%;
    width: 4px;
    background-color: var(--accent-teal);
    transform: scaleY(0);
    transition: transform var(--transition-medium);
    border-radius: 2px;
}

.faq-item:hover::before,
.faq-item.active::before {
    transform: scaleY(1);
}

/* -----------------------------------------
      9. RESPONSIVE DESIGN
      ----------------------------------------- */
@media (max-width: 992px) {
    html {
        font-size: 15px;
    }

    main {
        padding: var(--spacing-lg) var(--spacing-md);
    }

    .faq-category {
        padding: var(--spacing-md);
    }
}

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }

    header {
        flex-direction: column;
        padding: var(--spacing-md);
    }

    .logo-container {
        margin-bottom: var(--spacing-md);
    }

    .main-navigation ul {
        flex-direction: column;
        align-items: center;
    }

    .main-navigation li {
        margin: var(--spacing-sm) 0;
    }

    .faq-header p {
        font-size: 1rem;
    }

    .search-button {
        position: relative;
        right: auto;
        top: auto;
        transform: none;
        width: 100%;
        margin-top: var(--spacing-md);
    }

    .footer-middle {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .footer-section {
        width: 100%;
        margin-bottom: var(--spacing-xl);
    }
}

@media (max-width: 480px) {
    .faq-container {
        padding: var(--spacing-md);
    }

    h1 {
        font-size: 1.8rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    h3 {
        font-size: 1.2rem;
    }

    .search-section {
        padding: var(--spacing-lg) var(--spacing-md);
    }

    .support-section {
        padding: var(--spacing-lg) var(--spacing-md);
    }
}

/* -----------------------------------------
      10. PRINT STYLES
      ----------------------------------------- */
@media print {
    body {
        font-size: 12pt;
        background: white;
        color: black;
    }

    header,
    footer,
    .search-section,
    .support-section {
        display: none;
    }

    a {
        color: black;
        text-decoration: underline;
    }

    .faq-container {
        box-shadow: none;
        padding: 0;
    }

    .faq-category {
        box-shadow: none;
        page-break-inside: avoid;
        margin-bottom: var(--spacing-xl);
    }

    .faq-item h4::after {
        display: none;
    }

    .faq-answer {
        display: block !important;
    }

    .faq-item {
        page-break-inside: avoid;
    }
}

/* -----------------------------------------
      11. JAVASCRIPT FUNCTIONALITY SUPPORT
      ----------------------------------------- */
[data-theme="dark"] {
    color-scheme: dark;
}

.js-focus-visible :focus:not(.focus-visible) {
    outline: none;
}

/* FAQ Toggle Functionality */
.faq-item h4 {
    user-select: none;
    -webkit-user-select: none;
}

/* For JavaScript Dark Mode */
body.dark-mode {
    --primary-navy: #2D3B4D;
    --text-primary: #E5E5E5;
    --text-secondary: #F5F5F7;
    --background-primary: #121212;
    --background-secondary: #1E1E1E;
    --light-gray: #2A2A2A;
    --medium-gray: #A0A0A0;
}

/* Helper for JavaScript Scroll */
.scroll-margin {
    scroll-margin-top: 80px;
}