/* 
   Safiri by Citrus - How It Works CSS
   Parent/Student Account
   
   This stylesheet controls the appearance of the How It Works page,
   following the brand's modern, minimalistic, and elegant aesthetic.
*/

/* ========== Base Styles ========== */
:root {
    /* Brand Colors */
    --primary-color: #1A73E8;       /* Deep Blue */
    --secondary-color: #FFC107;     /* Soft Yellow */
    --accent-color: #4CAF50;        /* Fresh Green */
    --neutral-color: #F5F5F5;       /* Light Gray */
    --dark-color: #333333;          /* Text Dark Gray */
    --light-color: #FFFFFF;         /* White */
    --light-gray: #EEEEEE;          /* Light Gray for Backgrounds */
    --medium-gray: #CCCCCC;         /* Medium Gray for Borders */
    --shadow-color: rgba(0, 0, 0, 0.1);  /* Shadow Color */

    /* Typography */
    --heading-font: 'Montserrat', sans-serif;
    --body-font: 'Inter', sans-serif;
    --accent-font: 'Poppins', sans-serif;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;

    /* Border Radius */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    --border-radius-xl: 16px;
    --border-radius-circle: 50%;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

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

body {
    font-family: var(--body-font);
    line-height: 1.6;
    color: var(--dark-color);
    background-color: var(--light-color);
    font-weight: 400;
}

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

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

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

ul {
    list-style-type: none;
}

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

a:hover {
    color: var(--accent-color);
}

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

button {
    cursor: pointer;
    font-family: var(--heading-font);
    border: none;
    outline: none;
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* ========== Header Styles ========== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--light-color);
    box-shadow: 0 2px 10px var(--shadow-color);
    z-index: 1000;
    padding: var(--spacing-md) 0;
}

.header-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-container {
    flex-shrink: 0;
}

.logo {
    height: 40px;
    width: auto;
}

.main-nav {
    display: flex;
    align-items: center;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-list li a {
    font-family: var(--heading-font);
    font-weight: 500;
    color: var(--dark-color);
    position: relative;
}

.nav-list li a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width var(--transition-medium);
}

.nav-list li a:hover::after,
.nav-list li a.active::after {
    width: 100%;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--light-color) !important;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius-md);
    font-weight: 600;
    transition: background-color var(--transition-fast);
}

.btn-primary:hover {
    background-color: var(--accent-color);
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    padding: var(--spacing-sm) var(--spacing-lg);
    border: 2px solid var(--primary-color);
    border-radius: var(--border-radius-md);
    font-weight: 600;
    transition: all var(--transition-fast);
}

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: var(--light-color);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    cursor: pointer;
}

.mobile-menu-toggle span {
    display: block;
    height: 3px;
    width: 100%;
    background-color: var(--dark-color);
    border-radius: 3px;
    transition: transform var(--transition-medium), opacity var(--transition-medium);
}

/* ========== Hero Section ========== */
.hero-section {
    padding: calc(80px + var(--spacing-xxl)) 0 var(--spacing-xl);
    background: linear-gradient(135deg, var(--primary-color), #2196F3);
    color: var(--light-color);
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-section h1 {
    color: var(--light-color);
    margin-bottom: var(--spacing-md);
    font-weight: 700;
}

.tagline {
    font-family: var(--accent-font);
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: var(--spacing-lg);
    color: var(--secondary-color);
}

.hero-description {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.9;
}

/* ========== Process Navigation ========== */
.process-navigation {
    background-color: var(--light-color);
    padding: var(--spacing-lg) 0;
    box-shadow: 0 4px 6px var(--shadow-color);
    position: sticky;
    top: 70px;
    z-index: 900;
}

.process-nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.process-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-md);
    transition: background-color var(--transition-fast);
    color: var(--dark-color);
    text-align: center;
    flex: 1;
    min-width: 120px;
}

.process-nav-item:hover,
.process-nav-item.active {
    background-color: var(--neutral-color);
}

.process-nav-item.active .process-number {
    background-color: var(--primary-color);
    color: var(--light-color);
}

.process-number {
    width: 30px;
    height: 30px;
    background-color: var(--light-gray);
    border-radius: var(--border-radius-circle);
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    transition: background-color var(--transition-fast);
}

.process-title {
    font-size: 0.875rem;
    font-weight: 500;
}

/* ========== Process Content ========== */
.process-content {
    padding: var(--spacing-xxl) 0;
}

.process-section {
    margin-bottom: var(--spacing-xxl);
    padding-top: var(--spacing-lg);
}

.section-header {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-xl);
}

.section-number {
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: var(--light-color);
    border-radius: var(--border-radius-circle);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin-right: var(--spacing-md);
}

.section-intro {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xl);
    color: var(--dark-color);
    font-weight: 500;
}

/* Process Steps */
.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.process-step {
    background-color: var(--light-color);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 4px 15px var(--shadow-color);
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    transition: transform var(--transition-medium);
}

.process-step:hover {
    transform: translateY(-5px);
}

.step-icon {
    width: 60px;
    height: 60px;
    background-color: var(--primary-color);
    color: var(--light-color);
    border-radius: var(--border-radius-circle);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

.step-content h3 {
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.step-details {
    margin-top: var(--spacing-md);
}

.detail-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: var(--spacing-sm);
}

.detail-item i {
    color: var(--accent-color);
    margin-right: var(--spacing-sm);
    margin-top: 3px;
}

.process-image {
    text-align: center;
    margin-top: var(--spacing-xl);
}

.section-image {
    border-radius: var(--border-radius-lg);
    box-shadow: 0 10px 30px var(--shadow-color);
}

/* Process Timeline */
.process-timeline {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.timeline-section {
    background-color: var(--light-color);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 4px 15px var(--shadow-color);
    padding: var(--spacing-lg);
    transition: transform var(--transition-medium);
}

.timeline-section:hover {
    transform: translateY(-5px);
}

.timeline-header {
    margin-bottom: var(--spacing-md);
}

.timeline-header h3 {
    display: flex;
    align-items: center;
    font-weight: 600;
}

.timeline-header h3 i {
    margin-right: var(--spacing-sm);
    color: var(--primary-color);
}

.timeline-items {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.timeline-item {
    display: flex;
    align-items: flex-start;
}

.item-icon {
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    color: var(--light-color);
    border-radius: var(--border-radius-circle);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1rem;
    margin-right: var(--spacing-md);
    flex-shrink: 0;
}

.item-content h4 {
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

.timeline-item.expanded .item-content {
    flex-grow: 1;
}

.sub-items {
    margin-top: var(--spacing-sm);
    padding-left: var(--spacing-md);
}

.sub-items li {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-xs);
}

.sub-items li i {
    color: var(--accent-color);
    margin-right: var(--spacing-sm);
    font-size: 0.875rem;
}

.process-interactive {
    display: flex;
    justify-content: center;
    margin-top: var(--spacing-xl);
}

.interactive-screen {
    position: relative;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: 0 10px 30px var(--shadow-color);
}

.app-screen {
    border-radius: var(--border-radius-lg);
}

.screen-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity var(--transition-medium);
}

.interactive-screen:hover .screen-overlay {
    opacity: 1;
}

.overlay-content {
    text-align: center;
    color: var(--light-color);
    padding: var(--spacing-lg);
}

.overlay-content h3 {
    color: var(--light-color);
}

.view-demo-btn {
    margin-top: var(--spacing-md);
}

/* Feature Grid */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.feature-card {
    background-color: var(--light-color);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 4px 15px var(--shadow-color);
    padding: var(--spacing-lg);
    transition: transform var(--transition-medium);
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background-color: var(--primary-color);
    color: var(--light-color);
    border-radius: var(--border-radius-circle);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

.feature-list {
    margin-top: var(--spacing-md);
}

.feature-list li {
    margin-bottom: var(--spacing-md);
}

.feature-action {
    font-weight: 600;
    display: block;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.feature-desc {
    font-size: 0.95rem;
    margin-bottom: 0;
}

.feature-showcase {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
    background-color: var(--neutral-color);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
}

.showcase-text {
    flex: 1;
}

.showcase-benefits {
    margin-top: var(--spacing-md);
}

.showcase-benefits li {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.showcase-benefits li i {
    color: var(--accent-color);
    margin-right: var(--spacing-sm);
}

.showcase-image {
    flex: 1;
}

.feature-image {
    border-radius: var(--border-radius-lg);
    box-shadow: 0 5px 15px var(--shadow-color);
}

/* Payment Grid */
.payment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.payment-card {
    background-color: var(--light-color);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 4px 15px var(--shadow-color);
    padding: var(--spacing-lg);
    transition: transform var(--transition-medium);
}

.payment-card:hover {
    transform: translateY(-5px);
}

.card-icon {
    width: 60px;
    height: 60px;
    background-color: var(--primary-color);
    color: var(--light-color);
    border-radius: var(--border-radius-circle);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

.payment-features {
    margin-top: var(--spacing-md);
}

.payment-feature {
    display: flex;
    align-items: flex-start;
    margin-bottom: var(--spacing-md);
}

.payment-feature i {
    color: var(--primary-color);
    font-size: 1.25rem;
    margin-right: var(--spacing-md);
    margin-top: 5px;
}

.payment-feature h4 {
    margin-bottom: var(--spacing-xs);
}

.payment-feature p {
    margin-bottom: 0;
    font-size: 0.95rem;
}

.payment-illustration {
    text-align: center;
    margin-top: var(--spacing-xl);
}

.illustration-image {
    border-radius: var(--border-radius-lg);
    box-shadow: 0 10px 30px var(--shadow-color);
}

.illustration-caption {
    margin-top: var(--spacing-md);
    font-style: italic;
    font-size: 0.9rem;
    color: var(--dark-color);
    opacity: 0.8;
}

/* Communication Channels */
.communication-channels {
    margin-bottom: var(--spacing-xl);
}

.channel-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.channel-card {
    background-color: var(--light-color);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 4px 15px var(--shadow-color);
    padding: var(--spacing-lg);
    transition: transform var(--transition-medium);
}

.channel-card:hover {
    transform: translateY(-5px);
}

.channel-header {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.channel-icon {
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: var(--light-color);
    border-radius: var(--border-radius-circle);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.25rem;
    margin-right: var(--spacing-md);
}

.channel-header h3 {
    margin-bottom: 0;
    font-size: 1.2rem;
}

.channel-features {
    margin-top: var(--spacing-md);
}

.channel-feature {
    margin-bottom: var(--spacing-md);
}

.channel-feature h4 {
    font-size: 1rem;
    margin-bottom: var(--spacing-xs);
    display: flex;
    align-items: center;
}

.channel-feature h4 i {
    color: var(--primary-color);
    margin-right: var(--spacing-sm);
}

.channel-feature p {
    margin-bottom: 0;
    font-size: 0.95rem;
}

.communication-demo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.demo-screens {
    display: flex;
    gap: var(--spacing-md);
}

.demo-screen {
    border-radius: var(--border-radius-lg);
    box-shadow: 0 10px 30px var(--shadow-color);
    transition: transform var(--transition-medium);
}

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

.demo-text {
    flex: 1;
}

/* Testimonials */
.testimonials-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.testimonial-card {
    background-color: var(--light-color);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 4px 15px var(--shadow-color);
    padding: var(--spacing-lg);
    transition: transform var(--transition-medium);
}

.testimonial-card:hover {
    transform: translateY(-5px);
}

.testimonial-quote {
    position: relative;
    padding: var(--spacing-md) var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.testimonial-quote i.fa-quote-left {
    position: absolute;
    top: 0;
    left: 0;
    color: var(--primary-color);
    opacity: 0.2;
    font-size: 1.5rem;
}

.testimonial-quote i.fa-quote-right {
    position: absolute;
    bottom: 0;
    right: 0;
    color: var(--primary-color);
    opacity: 0.2;
    font-size: 1.5rem;
}

.testimonial-quote p {
    font-style: italic;
    margin-bottom: 0;
}

.testimonial-author {
    display: flex;
    align-items: center;
}

.author-image {
    margin-right: var(--spacing-md);
}

.avatar {
    width: 60px;
    height: 60px;
    border-radius: var(--border-radius-circle);
    object-fit: cover;
}

.author-info h4 {
    margin-bottom: 0;
    font-size: 1rem;
}

.author-info p {
    margin-bottom: 0;
    font-size: 0.9rem;
    color: var(--dark-color);
    opacity: 0.7;
}

/* Get Started CTA */
.get-started {
    background: linear-gradient(135deg, var(--primary-color), #2196F3);
    color: var(--light-color);
    padding: var(--spacing-xxl) 0;
    text-align: center;
}

.cta-content {
    max-width: 800px;
    margin: 0 auto;
}

.cta-content h2 {
    color: var(--light-color);
    margin-bottom: var(--spacing-md);
}

.cta-content p {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.9;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

/* Footer */
.site-footer {
    background-color: var(--dark-color);
    color: var(--light-color);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section h3 {
    color: var(--light-color);
    margin-bottom: var(--spacing-md);
    font-size: 1.2rem;
}

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

.footer-links a {
    color: var(--light-color);
    opacity: 0.8;
    transition: opacity var(--transition-fast);
}

.footer-links a:hover {
    opacity: 1;
    color: var(--secondary-color);
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.social-icon {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-circle);
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--light-color);
    transition: background-color var(--transition-fast);
}

.social-icon:hover {
    background-color: var(--primary-color);
    color: var(--light-color);
}

.website-link {
    margin-top: var(--spacing-md);
}

.website-link a {
    color: var(--secondary-color);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-md);
    text-align: center;
}

.copyright {
    font-size: 0.9rem;
    opacity: 0.7;
    margin-bottom: 0;
}

/* Responsive styles */
@media screen and (max-width: 992px) {
    .process-nav-container {
        justify-content: center;
    }
    
    .feature-showcase,
    .communication-demo {
        flex-direction: column;
    }
    
    .showcase-image,
    .demo-text {
        margin-top: var(--spacing-lg);
    }
}

@media screen and (max-width: 768px) {
    .nav-list {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .hero-section h1 {
        font-size: 2rem;
    }
    
    .tagline {
        font-size: 1.25rem;
    }
    
    .process-section {
        margin-bottom: var(--spacing-xl);
    }
    
    .section-header {
        flex-direction: column;
        text-align: center;
    }
    
    .section-number {
        margin-right: 0;
        margin-bottom: var(--spacing-md);
    }
    
    .process-step,
    .timeline-section,
    .feature-card,
    .payment-card,
    .channel-card {
        padding: var(--spacing-md);
    }
    
    .demo-screens {
        flex-direction: column;
        align-items: center;
    }
    
    .demo-screen {
        max-width: 280px;
        margin-bottom: var(--spacing-md);
    }
    
    .testimonial-card {
        padding: var(--spacing-md);
    }
}

@media screen and (max-width: 576px) {
    html {
        font-size: 14px;
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .process-nav-item {
        min-width: auto;
        padding: var(--spacing-xs);
    }
    
    .process-number {
        width: 25px;
        height: 25px;
        font-size: 0.75rem;
    }
    
    .process-title {
        font-size: 0.75rem;
    }
    
    .timeline-items {
        grid-template-columns: 1fr;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
}