/* WiFall Landing Page - Stylesheet */

/* Google Fonts - Updated font imports */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300..800&family=Plus+Jakarta+Sans:wght@400..800&display=swap');

:root {
    /* Base colors from main site */
    --primary-color: #4361EE;
    --primary-light: #7EA5FF;
    --primary-dark: #3A0CA3;
    
    /* WiFall specific accent colors */
    --wifall-accent-color: #4CC9F0;
    --wifall-accent-light: #CAF0FD; 
    --wifall-accent-dark: #0096C7;
    --wifall-gradient: linear-gradient(135deg, var(--wifall-accent-color) 0%, var(--primary-color) 100%);

    /* System colors */
    --success-color: #06D6A0;
    --error-color: #EF476F;
    --surface: #FFFFFF;
    --surface-variant: #F1F3FA;
    --surface-light: #F5F8FF;
    --surface-dark: #1A2238;

    /* Typography colors */
    --text-primary: #1F2937;
    --text-secondary: #4B5563;
    --text-tertiary: #9CA3AF;
    --text-on-primary: #FFFFFF;
    --text-on-accent: #FFFFFF;
    --text-on-dark: #F3F4F6;

    /* Updated font system */
    --font-family-heading: 'Plus Jakarta Sans', sans-serif;
    --font-family-body: 'Inter', sans-serif;
    --font-weight-light: 300;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2.5rem;
    --spacing-xl: 4rem;
    --spacing-xxl: 6rem;

    /* Updated border system */
    --border-radius-sm: 8px;
    --border-radius-md: 16px;
    --border-radius-lg: 24px;
    --border-radius-circle: 50%;
    --border-width: 1px;
    --border-color: var(--surface-variant);

    /* Updated shadow system */
    --shadow-sm: 0 2px 10px rgba(0,0,0,0.03);
    --shadow-md: 0 4px 20px rgba(15,23,42,0.05);
    --shadow-lg: 0 10px 30px rgba(15,23,42,0.07);

    /* Transitions */
    --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-medium: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);

    /* Container */
    --container-width: 1140px;
    --container-width-wide: 1440px;
}

/* Base & Reset Styles */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden; /* Prevent horizontal scrolling */
}

body {
    font-family: var(--font-family-body);
    color: var(--text-primary);
    background-color: var(--surface);
    line-height: 1.6;
    overflow-x: hidden;
    width: 100%;
    max-width: 100vw; /* Ensure no content extends beyond viewport */
}

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

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

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

/* Utility Classes */
.container {
    width: 90%;
    max-width: var(--container-width);
    margin-left: auto;
    margin-right: auto;
    padding-left: max(var(--spacing-md), 4vw);
    padding-right: max(var(--spacing-md), 4vw);
    overflow: hidden; /* Prevent content from causing horizontal scrolling */
}

.section {
    padding-top: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
}

.section--light {
    background-color: var(--surface-light);
}

.section-title {
    font-family: var(--font-family-heading);
    font-size: clamp(2rem, 5vw, 2.75rem);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-lg);
    text-align: center;
    color: var(--text-primary);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.section-subtitle {
    font-size: clamp(1rem, 3vw, 1.125rem);
    color: var(--text-secondary);
    text-align: center;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius-md);
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    transition: var(--transition-medium);
    gap: var(--spacing-xs);
    border: none;
    cursor: pointer;
    font-size: 1rem;
    line-height: 1;
    white-space: nowrap;
    letter-spacing: 0.01em;
    position: relative;
    overflow: hidden;
}

.btn--primary {
    background: var(--wifall-gradient);
    color: var(--text-on-accent);
    box-shadow: var(--shadow-sm);
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn--secondary {
    background-color: var(--surface);
    color: var(--wifall-accent-color);
    border: var(--border-width) solid var(--wifall-accent-color);
}

.btn--secondary:hover {
    background-color: var(--wifall-accent-light);
    color: var(--wifall-accent-dark);
    transform: translateY(-2px);
}

.btn .material-symbols-rounded {
    font-size: 1.25em;
}

/* Hero Buttons Container */
.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-top: var(--spacing-md);
}

/* WiFall Header */
.wifall-header {
    background-color: rgba(255,255,255,0.9);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-xs) 0;
}

.wifall-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.brand-logo {
    font-family: var(--font-family-heading);
    font-weight: var(--font-weight-bold);
    font-size: 1.5rem;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.brand-logo img {
    height: 28px;
    width: 28px;
}

.brand-logo:hover {
    color: var(--primary-dark);
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
}

.nav-links a {
    color: var(--text-primary);
    font-weight: var(--font-weight-medium);
    margin-left: var(--spacing-xs);
    position: relative;
    padding: var(--spacing-xs) 0;
}

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

.nav-links a:hover::after {
    width: 100%;
}

.nav-links a:hover {
    color: var(--wifall-accent-color);
}

/* Hero WiFall Section */
.hero-wifall {
    background-color: var(--wifall-accent-light);
    padding: max(130px, 15vh) 0 var(--spacing-xxl);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-wifall::before {
    content: '';
    position: absolute;
    bottom: -10%;
    left: -5%;
    width: 50%;
    height: 50%;
    background: radial-gradient(circle, var(--wifall-accent-color) 0%, rgba(76,201,240,0) 70%);
    border-radius: var(--border-radius-circle);
    opacity: 0.2;
    z-index: 0;
}

.hero-wifall::after {
    content: '';
    position: absolute;
    top: -10%;
    right: -5%;
    width: 50%;
    height: 50%;
    background: radial-gradient(circle, var(--primary-light) 0%, rgba(126,165,255,0) 70%);
    border-radius: var(--border-radius-circle);
    opacity: 0.2;
    z-index: 0;
}

.hero-wifall__content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
}

.hero-wifall__content h1 {
    font-family: var(--font-family-heading);
    font-size: clamp(2.5rem, 8vw, 4rem);
    font-weight: var(--font-weight-extrabold);
    color: var(--wifall-accent-dark);
    margin-bottom: var(--spacing-md);
    line-height: 1.1;
    letter-spacing: -0.02em;
    background: var(--wifall-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero-wifall__content .subtitle {
    font-size: clamp(1.125rem, 4vw, 1.25rem);
    color: var(--text-secondary);
    max-width: 750px;
    margin: 0 auto var(--spacing-lg) auto;
    line-height: 1.7;
}

.hero-wifall__content .btn {
    margin: var(--spacing-xs);
}

/* Wave divider effect */
.wave-divider {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    overflow: hidden;
    line-height: 0;
    transform: rotate(180deg);
}

.wave-divider svg {
    position: relative;
    display: block;
    width: calc(100% + 1.3px);
    height: 70px;
}

.wave-divider .shape-fill {
    fill: var(--surface);
}

/* Features Section */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.feature-card {
    background-color: var(--surface);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition-medium);
    border: 1px solid rgba(0,0,0,0.03);
    position: relative;
    isolation: isolate;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: var(--wifall-gradient);
    z-index: -1;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-md) auto;
    color: var(--wifall-accent-color);
    font-size: 48px !important;
}

.feature-card h3 {
    font-family: var(--font-family-heading);
    font-size: 1.3rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.feature-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* How it Works Section */
.how-it-works__steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    align-items: stretch;
}

.step-card {
    background-color: var(--surface);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: var(--transition-medium);
    border: 1px solid rgba(0,0,0,0.03);
    position: relative;
}

.step-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.step-card span {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--wifall-gradient);
    color: var(--text-on-accent);
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    width: 60px;
    height: 60px;
    line-height: 1;
    border-radius: var(--border-radius-circle);
    margin-bottom: var(--spacing-md);
}

.step-card h4 {
    font-family: var(--font-family-heading);
    font-size: 1.2rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.step-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Use Cases */
.use-cases-list {
    list-style: none;
    padding-left: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    text-align: center;
}

.use-cases-list li {
    background-color: var(--surface-light);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    font-weight: var(--font-weight-medium);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-medium);
    border-left: 3px solid var(--wifall-accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
}

.use-cases-list li .material-symbols-rounded {
    color: var(--wifall-accent-color);
    font-size: 24px;
}

.use-cases-list li:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

/* Contact Section */
.contact-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-top: var(--spacing-lg);
}

/* Animation */
@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0px); }
}

.floating {
    animation: float 8s ease-in-out infinite;
}

/* WiFall Footer */
.wifall-footer {
    background-color: var(--surface-dark);
    color: var(--text-on-dark);
    padding: var(--spacing-lg) 0;
    text-align: center;
    font-size: 0.9rem;
}

.wifall-footer p {
    margin-bottom: var(--spacing-xs);
    opacity: 0.8;
}

.wifall-footer a {
    color: var(--primary-light);
    transition: var(--transition-fast);
}

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

/* Responsive adjustments for WiFall page */
@media (max-width: 992px) {
    .hero-wifall__content h1 {
        font-size: clamp(2.2rem, 7vw, 3.5rem);
    }
    
    .features-grid,
    .how-it-works__steps {
        gap: var(--spacing-md);
    }
    
    .feature-card {
        padding: var(--spacing-md);
    }
}

@media (max-width: 768px) {
    .section-title {
        font-size: clamp(1.5rem, 6vw, 2rem);
    }
    
    .hero-wifall__content h1 {
        font-size: clamp(1.75rem, 8vw, 2.5rem);
    }
    
    .hero-wifall__content .subtitle {
        font-size: clamp(1rem, 4vw, 1.125rem);
    }
    
    .wifall-nav {
        flex-direction: column;
        align-items: center;
    }
    
    .nav-links {
        margin-top: var(--spacing-sm);
        display: flex;
        flex-wrap: wrap;
        justify-content: center; 
    }
    
    .nav-links a {
        margin-left: var(--spacing-sm);
        margin-right: var(--spacing-sm);
        margin-bottom: var(--spacing-xs);
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .contact-actions {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 576px) {
    /* Container and spacing */
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
        width: 100%;
    }
    
    /* Section spacing */
    .section {
        padding-top: var(--spacing-lg);
        padding-bottom: var(--spacing-lg);
    }
    
    /* Hero section */
    .hero-wifall {
        padding-top: calc(90px + 5vh);
        padding-bottom: var(--spacing-lg);
    }
    
    .hero-wifall__content h1 {
        font-size: clamp(1.5rem, 7vw, 2rem);
    }
    
    .hero-wifall__content .subtitle {
        font-size: clamp(0.9rem, 4vw, 1rem);
        margin-bottom: var(--spacing-md);
    }
    
    /* Grid layouts */
    .features-grid,
    .how-it-works__steps {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    /* Cards and layout components */
    .feature-card {
        padding: var(--spacing-sm);
    }
    
    .step-card {
        padding: var(--spacing-sm);
    }
    
    /* Button styles */
    .btn {
        padding: 0.7rem 1.25rem;
        font-size: 0.9rem;
        width: 100%;
        margin: var(--spacing-xs) 0;
    }
    
    /* Use cases section */
    .use-cases-list {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    /* Typography */
    .section-title {
        font-size: clamp(1.25rem, 6vw, 1.75rem);
        margin-bottom: var(--spacing-md);
    }
    
    .section-subtitle {
        margin-bottom: var(--spacing-md);
    }
    
    /* WiFall header */
    .wifall-nav {
        height: auto;
        padding: var(--spacing-xs) 0;
    }
    
    .brand-logo {
        font-size: 1.25rem;
    }
    
    .brand-logo img {
        height: 24px;
        width: 24px;
    }
}

/* Very wide screens */
@media (min-width: 1921px) {
    .container {
        max-width: var(--container-width-wide);
    }
    html {
        font-size: 18px;
    }
}