/* ===== LANDING PAGE STYLES - CURIS HEALTH ===== */

/* ===== IMPORT FONTS ===== */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800&display=swap');
@import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css');

/* ===== CSS RESET & BASE STYLES ===== */
:root {
    /* Brand Colors */
    --primary-color: #1D2A3B;
    /* Deep Navy / Midnight Blue */
    --accent-color: #00BFA5;
    /* Vibrant Teal / Aqua */
    --secondary-color: #FF6B35;
    /* Sunset Orange */
    --neutral-light: #F5F5F7;
    /* Soft Gray */
    --neutral-dark: #333333;
    /* Charcoal Gray */

    /* Derived Colors */
    --primary-light: #2D3A4B;
    --accent-dark: #009B85;
    --secondary-light: #FF8C65;
    --danger-color: #E53935;
    --success-color: #43A047;
    --warning-color: #FFC107;
    --light-text: #FFFFFF;
    --muted-text: #6C757D;
    --border-color: #E0E0E0;
    --shadow-color: rgba(0, 0, 0, 0.08);

    /* Typography */
    --font-family: 'Poppins', sans-serif;
    --font-size-base: 16px;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;
    --section-spacing: 5rem;

    /* Border Radius */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    --border-radius-xl: 20px;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    color: var(--neutral-dark);
    background-color: var(--neutral-light);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
}

h1 {
    font-size: 4rem;
    font-weight: 800;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.5rem;
}

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

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

a:hover {
    color: var(--accent-dark);
    text-decoration: none;
}

ul {
    list-style-position: inside;
    margin-bottom: var(--spacing-md);
}

button {
    font-family: var(--font-family);
    cursor: pointer;
}

/* ===== HEADER STYLES ===== */
header {
    background-color: var(--primary-color);
    color: var(--light-text);
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo-container img {
    height: 40px;
    max-width: 180px;
    display: block;
}

nav ul {
    display: flex;
    list-style: none;
    margin: 0;
    align-items: center;
}

nav li {
    margin-left: var(--spacing-lg);
}

nav a {
    color: var(--light-text);
    font-weight: 500;
    padding: var(--spacing-sm) 0;
    position: relative;
    text-decoration: none;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-color);
    transition: width var(--transition-normal);
}

nav a:hover {
    color: var(--light-text);
    text-decoration: none;
}

nav a:hover::after {
    width: 100%;
}

.nav-cta a {
    background-color: var(--accent-color);
    color: var(--light-text);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius-md);
    transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.nav-cta a:hover {
    background-color: var(--accent-dark);
    transform: translateY(-2px);
}

.nav-cta a::after {
    display: none;
}

/* ===== MAIN CONTENT LAYOUT ===== */
main {
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* Common section styles */
section {
    padding: var(--section-spacing) var(--spacing-xl);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xxl);
    position: relative;
}

.section-header h2 {
    display: inline-block;
    position: relative;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background-color: var(--accent-color);
    border-radius: 2px;
}

/* ===== HERO SECTION ===== */
.hero-section {
    display: flex;
    align-items: center;
    min-height: calc(100vh - 80px);
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: var(--light-text);
    padding: 0;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(circle at 20% 30%, rgba(0, 191, 165, 0.2) 0%, transparent 40%);
    background-image: radial-gradient(circle at 80% 70%, rgba(255, 107, 53, 0.2) 0%, transparent 40%);
}

.hero-content {
    flex: 1;
    padding: var(--spacing-xxl);
    z-index: 1;
    animation: fadeInUp 1s ease;
}

.hero-content h1 {
    color: var(--light-text);
    margin-bottom: var(--spacing-sm);
    font-size: 4.5rem;
    line-height: 1.1;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.hero-content h2 {
    color: var(--accent-color);
    margin-bottom: var(--spacing-lg);
    font-size: 2.5rem;
    font-weight: 400;
}

.hero-content p {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
}

.hero-image {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
    animation: slideInRight 1s ease;
}

.platform-image {
    max-width: 90%;
    height: auto;
    border-radius: var(--border-radius-lg);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    transform: perspective(1000px) rotateY(-5deg);
    transition: transform var(--transition-normal);
}

.platform-image:hover {
    transform: perspective(1000px) rotateY(0deg);
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.primary-cta {
    display: inline-block;
    padding: var(--spacing-md) var(--spacing-xl);
    background-color: var(--accent-color);
    color: var(--light-text);
    border-radius: var(--border-radius-md);
    font-weight: 600;
    transition: background-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
    box-shadow: 0 4px 15px rgba(0, 191, 165, 0.4);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.primary-cta:hover {
    background-color: var(--accent-dark);
    color: var(--light-text);
    transform: translateY(-3px);
    box-shadow: 0 6px 18px rgba(0, 191, 165, 0.5);
}

/* ===== ABOUT SECTION ===== */
.about-section {
    background-color: white;
    text-align: center;
}

.about-content {
    max-width: 800px;
    margin: 0 auto var(--spacing-xxl);
}

.about-content p {
    font-size: 1.25rem;
}

.mission-values {
    display: flex;
    gap: var(--spacing-xl);
    max-width: 1200px;
    margin: 0 auto;
}

.mission,
.value {
    flex: 1;
    padding: var(--spacing-xl);
    background-color: var(--neutral-light);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 5px 20px var(--shadow-color);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.mission:hover,
.value:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px var(--shadow-color);
}

.mission::before,
.value::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 100%;
}

.mission::before {
    background-color: var(--accent-color);
}

.value::before {
    background-color: var(--secondary-color);
}

.mission h3,
.value h3 {
    color: var(--primary-color);
}

/* ===== FEATURES SECTION ===== */
.features-section {
    background: linear-gradient(135deg, var(--neutral-light) 0%, #FFFFFF 100%);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background-color: white;
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    box-shadow: 0 5px 20px var(--shadow-color);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px var(--shadow-color);
}

.feature-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background-color: var(--accent-color);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--transition-normal);
}

.feature-card:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(0, 191, 165, 0.1);
    color: var(--accent-color);
    font-size: 2rem;
    transition: background-color var(--transition-normal), transform var(--transition-normal);
}

.feature-card:hover .feature-icon {
    background-color: var(--accent-color);
    color: var(--light-text);
    transform: scale(1.1);
}

/* Feature icons */
.secure-chat-icon::before {
    content: '\f4ad';
    /* fa-comment-medical */
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
}

.appointments-icon::before {
    content: '\f783';
    /* fa-calendar-day */
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
}

.prescriptions-icon::before {
    content: '\f490';
    /* fa-prescription */
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
}

.medical-history-icon::before {
    content: '\f477';
    /* fa-file-medical */
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
}

.billing-icon::before {
    content: '\f53a';
    /* fa-credit-card */
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
}

.feature-card h3 {
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.feature-card p {
    color: var(--muted-text);
    margin-bottom: 0;
}

/* ===== HOW IT WORKS SECTION ===== */
.how-it-works-section {
    background-color: white;
}

.steps-container {
    display: flex;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
}

.steps-container::before {
    content: '';
    position: absolute;
    top: 40px;
    left: 60px;
    right: 60px;
    height: 4px;
    background-color: var(--accent-color);
    z-index: 0;
}

.step {
    flex: 1;
    text-align: center;
    padding: 0 var(--spacing-md);
    position: relative;
    z-index: 1;
}

.step-number {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background-color: var(--accent-color);
    color: var(--light-text);
    font-size: 2rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    box-shadow: 0 5px 15px rgba(0, 191, 165, 0.3);
    position: relative;
    transition: transform var(--transition-normal);
    border: 5px solid white;
}

.step:hover .step-number {
    transform: scale(1.1);
}

.step h3 {
    margin-bottom: var(--spacing-sm);
}

.step p {
    color: var(--muted-text);
}

/* ===== TESTIMONIALS SECTION ===== */
.testimonials-section {
    background: linear-gradient(135deg, var(--neutral-light) 0%, #FFFFFF 100%);
}

.testimonials-container {
    display: flex;
    gap: var(--spacing-xl);
    max-width: 1000px;
    margin: 0 auto var(--spacing-xxl);
    flex-wrap: wrap;
}

.testimonial {
    flex: 1;
    min-width: 300px;
    background-color: white;
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    box-shadow: 0 5px 20px var(--shadow-color);
    position: relative;
    transition: transform var(--transition-normal);
}

.testimonial:hover {
    transform: translateY(-10px);
}

.quote-icon {
    font-size: 3rem;
    color: var(--accent-color);
    opacity: 0.2;
    position: absolute;
    top: 20px;
    left: 20px;
    line-height: 1;
}

.testimonial-text {
    font-style: italic;
    position: relative;
    z-index: 1;
    margin-top: var(--spacing-lg);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--primary-light);
    background-size: cover;
    background-position: center;
}

.author-name {
    font-weight: 600;
    margin-bottom: 0;
}

.ratings {
    max-width: 200px;
    margin: 0 auto;
    text-align: center;
}

.stars {
    display: flex;
    justify-content: center;
    gap: 5px;
    font-size: 1.5rem;
    color: var(--warning-color);
}

/* ===== SECONDARY CTA SECTION ===== */
.secondary-cta-section {
    background-color: var(--primary-color);
    color: var(--light-text);
    text-align: center;
}

.secondary-cta-section .section-header h2 {
    color: var(--light-text);
}

.cta-options {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xxl);
    flex-wrap: wrap;
}

.cta-button {
    display: inline-block;
    padding: var(--spacing-md) var(--spacing-xl);
    background-color: var(--accent-color);
    color: var(--light-text);
    border-radius: var(--border-radius-md);
    font-weight: 600;
    transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.cta-button:hover {
    background-color: var(--accent-dark);
    color: var(--light-text);
    transform: translateY(-3px);
}

.cta-button.secondary {
    background-color: transparent;
    border: 2px solid var(--accent-color);
}

.cta-button.secondary:hover {
    background-color: var(--accent-color);
}

.tagline {
    margin-bottom: var(--spacing-xl);
}

.tagline p {
    font-size: 1.5rem;
    margin-bottom: 0;
}

.final-cta {
    margin-top: var(--spacing-xxl);
}

/* ===== FOOTER STYLES ===== */
footer {
    background-color: var(--primary-color);
    color: var(--light-text);
    padding: var(--spacing-xl) 0 var(--spacing-md);
    margin-top: auto;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    padding: 0 var(--spacing-lg);
}

.footer-section h3 {
    color: var(--light-text);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
    position: relative;
    display: inline-block;
}

.footer-section h3::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 30px;
    height: 2px;
    background-color: var(--accent-color);
}

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

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

.footer-section a {
    color: #CCC;
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.social-icons {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-sm);
    flex-wrap: wrap;
}

.social-icons a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: background-color var(--transition-fast);
}

.social-icons a:hover {
    background-color: var(--accent-color);
}

.copyright {
    text-align: center;
    padding-top: var(--spacing-lg);
    margin-top: var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.875rem;
    color: #AAA;
}

#dark-mode-toggle {
    background: none;
    border: none;
    color: #CCC;
    font-size: 1.2rem;
    cursor: pointer;
    transition: color var(--transition-fast);
}

#dark-mode-toggle:hover {
    color: var(--accent-color);
}

/* ===== DARK MODE STYLES ===== */
body.dark-mode {
    --neutral-light: #1E1E1E;
    --neutral-dark: #E0E0E0;
    --border-color: #444;
    --shadow-color: rgba(0, 0, 0, 0.3);
    background-color: #121212;
}

body.dark-mode .about-section,
body.dark-mode .how-it-works-section {
    background-color: #1E1E1E;
}

body.dark-mode .features-section,
body.dark-mode .testimonials-section {
    background: linear-gradient(135deg, #1E1E1E 0%, #2D2D2D 100%);
}

body.dark-mode h1,
body.dark-mode h2,
body.dark-mode h3,
body.dark-mode label {
    color: #E0E0E0;
}

body.dark-mode .feature-card,
body.dark-mode .testimonial,
body.dark-mode .mission,
body.dark-mode .value {
    background-color: #2D2D2D;
    color: #E0E0E0;
}

body.dark-mode footer {
    background-color: #1A1A1A;
}

body.dark-mode .step-number {
    border-color: #1E1E1E;
}

/* ===== ANIMATIONS ===== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(100px);
    }

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-100px);
    }

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

/* Apply fade-in animations to sections */
.about-section,
.features-section,
.how-it-works-section,
.testimonials-section,
.secondary-cta-section {
    opacity: 0;
    animation: fadeIn 1s ease forwards;
}

/* Stagger animations when scrolling */
.about-section {
    animation-delay: 0.2s;
}

.features-section {
    animation-delay: 0.4s;
}

.how-it-works-section {
    animation-delay: 0.6s;
}

.testimonials-section {
    animation-delay: 0.8s;
}

.secondary-cta-section {
    animation-delay: 1s;
}

/* Animation for feature cards */
.feature-card {
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards;
}

.feature-card:nth-child(1) {
    animation-delay: 0.1s;
}

.feature-card:nth-child(2) {
    animation-delay: 0.2s;
}

.feature-card:nth-child(3) {
    animation-delay: 0.3s;
}

.feature-card:nth-child(4) {
    animation-delay: 0.4s;
}

.feature-card:nth-child(5) {
    animation-delay: 0.5s;
}

/* Animation for steps */
.step {
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards;
}

.step:nth-child(1) {
    animation-delay: 0.1s;
}

.step:nth-child(2) {
    animation-delay: 0.3s;
}

.step:nth-child(3) {
    animation-delay: 0.5s;
}

.step:nth-child(4) {
    animation-delay: 0.7s;
}

/* Animation for CTAs */
.primary-cta {
    position: relative;
    overflow: hidden;
}

.primary-cta::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.2);
    transform: translateX(-100%);
    transition: transform 0.5s ease;
}

.primary-cta:hover::after {
    transform: translateX(100%);
}

/* ===== RESPONSIVE STYLES ===== */
@media (max-width: 992px) {
    .hero-section {
        flex-direction: column;
        min-height: auto;
        padding: var(--spacing-xxl) 0;
    }

    .hero-content {
        text-align: center;
        padding: var(--spacing-xl) var(--spacing-lg);
    }

    .hero-content p {
        margin-left: auto;
        margin-right: auto;
    }

    .cta-buttons {
        justify-content: center;
    }

    .hero-image {
        margin-top: var(--spacing-xl);
    }

    h1 {
        font-size: 3rem;
    }

    h2 {
        font-size: 2rem;
    }

    .mission-values {
        flex-direction: column;
    }

    .steps-container {
        flex-direction: column;
        gap: var(--spacing-xl);
    }

    .steps-container::before {
        display: none;
    }

    .step-number {
        margin-bottom: var(--spacing-md);
    }
}

@media (max-width: 768px) {
    header {
        flex-direction: column;
        padding: var(--spacing-md);
    }

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

    nav ul {
        flex-wrap: wrap;
        justify-content: center;
    }

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

    section {
        padding: var(--spacing-xxl) var(--spacing-lg);
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .testimonials-container {
        flex-direction: column;
    }

    .footer-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .social-icons {
        justify-content: center;
    }
}

@media (max-width: 576px) {
    h1 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 1.75rem;
    }

    .cta-options {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .cta-button {
        width: 100%;
    }

    .platform-image {
        transform: none;
    }

    .platform-image:hover {
        transform: none;
    }
}

/* ===== UTILITY CLASSES ===== */
.text-center {
    text-align: center;
}

.mb-0 {
    margin-bottom: 0;
}

.mb-lg {
    margin-bottom: var(--spacing-lg);
}

.mb-xl {
    margin-bottom: var(--spacing-xl);
}

.mt-lg {
    margin-top: var(--spacing-lg);
}

.mt-xl {
    margin-top: var(--spacing-xl);
}

.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;
}

/* Javascript-related styles */
.scroll-trigger {
    opacity: 0;
    transition: opacity 1s ease, transform 1s ease;
}

.scroll-trigger.animated {
    opacity: 1;
    transform: translateY(0);
}

/* Dynamic Stars Generation */
.star {
    position: relative;
}

.star::before {
    content: '\f005';
    /* fa-star */
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
}

.star.half::after {
    content: '\f005';
    /* fa-star */
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    left: 0;
    top: 0;
    width: 50%;
    overflow: hidden;
}