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

:root {
    /* Fusion-inspired Color Scheme */
    --bg-primary: #0a0a0a;
    --bg-secondary: #111111;
    --bg-surface: #1a1a1a;
    --bg-card: #1f1f1f;
    
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --text-tertiary: #666666;
    
    --accent-primary: #E2BB66;
    --accent-hover: #C9A656;
    
    --border: #2a2a2a;
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: all 0.3s ease;
    background: transparent;
}

.nav-overlay {
    display: none;
}

.nav.scrolled {
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(10px);
    padding: 16px 0;
}

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

.nav-logo {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: -0.5px;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
    position: relative;
}

.nav-toggle-line {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s ease;
    border-radius: 2px;
}

.nav-toggle.active .nav-toggle-line:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
}

.nav-toggle.active .nav-toggle-line:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active .nav-toggle-line:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

.nav-links {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav-link {
    font-size: 15px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
    font-weight: 500;
}

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

/* Hero Section - Fusion Style */
.hero-fusion {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding: 120px 0 80px;
}

.hero-fusion::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('assets/bg-1.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    filter: grayscale(100%);
    z-index: 0;
}

.hero-fusion::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 10, 10, 0.75);
    z-index: 1;
}

.hero-title-container {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    text-align: center;
    z-index: 1;
    pointer-events: none;
}

.hero-title-large {
    font-size: clamp(64px, 12vw, 180px);
    font-weight: 900;
    line-height: 0.9;
    color: var(--text-primary);
    opacity: 0.05;
    white-space: nowrap;
    margin: 0;
    letter-spacing: -2px;
    transition: transform 0.1s ease-out;
    will-change: transform;
}

.hero-title-large:nth-child(1) {
    opacity: 0.08;
}

.hero-title-large:nth-child(2) {
    opacity: 0.06;
    margin-top: -40px;
}

.hero-title-large:nth-child(3) {
    opacity: 0.04;
    margin-top: -40px;
}

.hero-content-wrapper {
    position: relative;
    z-index: 2;
    width: 100%;
}

.hero-content-fusion {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.hero-text-fusion {
    max-width: 600px;
}

.hero-title-fusion {
    font-size: clamp(48px, 6vw, 72px);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    background: linear-gradient(135deg, #ffffff 0%, var(--accent-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle-fusion {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.6;
}

.hero-cta-fusion {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
}

.app-store-badge-link {
    display: inline-block;
    text-decoration: none;
    transition: transform 0.3s ease;
}

.app-store-badge-link:hover {
    transform: scale(1.05);
}

.app-store-badge {
    display: block;
    height: auto;
}

.app-store-badge .badge-fill {
    fill: var(--accent-primary);
}

.app-store-badge .badge-icon,
.app-store-badge .badge-text {
    fill: #0a0a0a;
}

.hero-image-fusion {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-phone-container {
    position: relative;
    width: 100%;
    max-width: 400px;
    aspect-ratio: 9 / 18.5;
}

.phone-mockup-fusion,
.hero-phone-image {
    max-width: 100%;
    height: auto;
    max-height: 700px;
}

.hero-phone-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    opacity: 0;
    transition: opacity 1.5s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: var(--radius-xl);
}

.hero-phone-splash {
    opacity: 1;
    z-index: 2;
}

.hero-phone-home {
    opacity: 0;
    z-index: 1;
}

.hero-phone-container.fade-to-home .hero-phone-splash {
    opacity: 0;
}

.hero-phone-container.fade-to-home .hero-phone-home {
    opacity: 1;
}

.phone-mockup-fusion:hover,
.hero-phone-container:hover .hero-phone-image {
    transform: scale(1.02);
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Buttons - Fusion Style */
.btn-fusion {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 16px 32px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    cursor: pointer;
    font-family: inherit;
    position: relative;
    overflow: hidden;
}

.btn-fusion::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

.btn-fusion:hover::before {
    left: 100%;
}

.btn-primary-fusion {
    background: var(--accent-primary);
    color: #0a0a0a;
    box-shadow: var(--shadow-md);
}

.btn-primary-fusion:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary-fusion {
    background: transparent;
    color: var(--text-secondary);
    border: 2px solid var(--border);
    opacity: 0.7;
    cursor: not-allowed;
}

.btn-secondary-fusion:hover {
    opacity: 0.8;
    transform: none;
}

.btn-large-fusion {
    padding: 20px 40px;
    font-size: 18px;
}

.btn-fusion svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.btn-large-fusion svg {
    width: 24px;
    height: 24px;
}

/* Features Section - Fusion Style */
.features-fusion {
    padding: 160px 0;
    background: var(--bg-secondary);
    position: relative;
}

.section-header-fusion {
    text-align: center;
    margin-bottom: 80px;
}

.section-title-fusion {
    font-size: clamp(42px, 6vw, 72px);
    font-weight: 800;
    margin-bottom: 24px;
    color: var(--text-primary);
    letter-spacing: -1px;
    line-height: 1.1;
}

.section-subtitle-fusion {
    font-size: 20px;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Features Scroll Container */
.features-scroll-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
    position: relative;
    min-height: 200vh;
}

/* Fixed Phone Mockup */
.phone-mockup-container {
    position: sticky;
    top: 120px;
    height: fit-content;
    display: flex;
    justify-content: center;
    align-items: center;
}

.phone-mockup-wrapper {
    position: relative;
    width: 100%;
    max-width: 400px;
    aspect-ratio: 9 / 18.5;
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.phone-screen {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.phone-screen-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
}

.phone-screen-image.active {
    opacity: 1;
    z-index: 1;
}

/* Scrollable Feature List */
.features-list-fusion {
    display: flex;
    flex-direction: column;
    gap: 120px;
    padding: 40px 0;
}

.feature-item-fusion {
    min-height: 300px;
    display: flex;
    align-items: center;
    opacity: 0.4;
    transform: translateX(20px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.feature-item-fusion.active {
    opacity: 1;
    transform: translateX(0);
}

.feature-content-fusion {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 48px;
    border: 1px solid var(--border);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.feature-item-fusion.active .feature-content-fusion {
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-md);
}

.feature-content-fusion::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent-primary), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
}

.feature-item-fusion.active .feature-content-fusion::before {
    transform: translateX(100%);
}

.feature-title-fusion {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-primary);
    letter-spacing: -0.5px;
    line-height: 1.2;
}

.feature-description-fusion {
    font-size: 18px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Benefits Section - Fusion Style */
.benefits-fusion {
    padding: 160px 0;
    background: var(--bg-primary);
    position: relative;
}

.benefits-content-fusion {
    max-width: 900px;
    margin: 0 auto;
}

.benefits-text-fusion {
    text-align: center;
}

.benefits-list-fusion {
    margin-top: 64px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.benefit-item-fusion {
    display: flex;
    gap: 24px;
    align-items: center;
    opacity: 0;
    transform: translateX(-30px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 32px;
    border-radius: var(--radius-lg);
    background: var(--bg-card);
    border: 1px solid var(--border);
}

.benefit-item-fusion.visible {
    opacity: 1;
    transform: translateX(0);
}

.benefit-icon-fusion {
    flex-shrink: 0;
    width: 56px;
    height: 56px;
    min-width: 56px;
    background: var(--accent-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #0a0a0a;
}

.benefit-icon-fusion i,
.benefit-icon-fusion svg {
    width: 24px;
    height: 24px;
    color: inherit;
}

.benefit-item-fusion > div:last-child {
    flex: 1;
}

.benefit-item-fusion h4 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
    letter-spacing: -0.3px;
    line-height: 1.3;
}

.benefit-item-fusion p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* CTA Section - Fusion Style */
.cta-fusion {
    padding: 160px 0;
    background: var(--bg-secondary);
    text-align: center;
    position: relative;
}

.cta-content-fusion {
    max-width: 700px;
    margin: 0 auto;
}

.cta-title-fusion {
    font-size: clamp(42px, 6vw, 64px);
    font-weight: 800;
    margin-bottom: 24px;
    color: var(--text-primary);
    letter-spacing: -1px;
    line-height: 1.1;
}

.cta-subtitle-fusion {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 48px;
    line-height: 1.6;
}

.cta-note-fusion {
    margin-top: 24px;
    font-size: 14px;
    color: var(--text-tertiary);
}

/* Footer - Fusion Style */
.footer-fusion {
    padding: 64px 0;
    border-top: 1px solid var(--border);
    background: var(--bg-primary);
}

.footer-content-fusion {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 24px;
}

.footer-text-fusion {
    font-size: 14px;
    color: var(--text-tertiary);
}

.footer-links-fusion {
    display: flex;
    gap: 32px;
}

.footer-link-fusion {
    font-size: 14px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
    font-weight: 500;
}

.footer-link-fusion:hover {
    color: var(--accent-primary);
}

/* Responsive Design */
@media (max-width: 968px) {
    .hero-content-fusion {
        grid-template-columns: 1fr;
        gap: 60px;
        text-align: center;
    }
    
    .hero-text-fusion {
        max-width: 100%;
    }
    
    .hero-cta-fusion {
        align-items: center;
    }
    
    .phone-mockup-fusion {
        transform: none;
        max-height: 500px;
    }
    
    .hero-phone-container {
        max-width: 300px;
    }
    
    .hero-phone-container .hero-phone-image {
        transform: none;
    }
    
    .features-scroll-container {
        grid-template-columns: 1fr;
        gap: 60px;
        min-height: auto;
    }
    
    .phone-mockup-container {
        position: relative;
        top: 0;
        margin-bottom: 40px;
    }
    
    .phone-mockup-wrapper {
        max-width: 300px;
    }
    
    .features-list-fusion {
        gap: 80px;
    }
    
    .nav-links {
        gap: 24px;
    }
    
    .footer-content-fusion {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: rgba(10, 10, 10, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: flex-start;
        justify-content: flex-start;
        padding: 100px 32px 32px;
        gap: 0;
        transition: right 0.3s ease;
        z-index: 1000;
        box-shadow: -4px 0 24px rgba(0, 0, 0, 0.5);
    }
    
    .nav.menu-open .nav-links {
        right: 0;
    }
    
    .nav-link {
        width: 100%;
        padding: 16px 0;
        font-size: 18px;
        border-bottom: 1px solid var(--border);
    }
    
    .nav-link:last-child {
        border-bottom: none;
    }
    
    .nav-overlay {
        display: block;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 999;
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.3s ease, visibility 0.3s ease;
        pointer-events: none;
    }
    
    .nav.menu-open .nav-overlay {
        opacity: 1;
        visibility: visible;
        pointer-events: all;
    }
}

@media (max-width: 640px) {
    .container {
        padding: 0 20px;
    }
    
    .hero-fusion {
        padding: 100px 0 60px;
        min-height: auto;
    }
    
    .hero-title-large {
        font-size: clamp(48px, 15vw, 120px);
    }
    
    
    .hero-subtitle-fusion {
        font-size: 18px;
    }
    
    .features-fusion,
    .benefits-fusion,
    .cta-fusion {
        padding: 100px 0;
    }
    
    .section-title-fusion {
        font-size: 36px;
    }
    
    .section-subtitle-fusion {
        font-size: 18px;
    }
    
    .features-scroll-container {
        gap: 40px;
    }
    
    .phone-mockup-wrapper {
        max-width: 250px;
    }
    
    .features-list-fusion {
        gap: 60px;
    }
    
    .feature-content-fusion {
        padding: 32px 24px;
    }
    
    .feature-title-fusion {
        font-size: 24px;
    }
    
    .feature-description-fusion {
        font-size: 16px;
    }
    
    .btn-fusion {
        width: 100%;
        justify-content: center;
    }
    
    .nav-links {
        width: 100%;
        right: -100%;
    }
    
    .nav.menu-open .nav-links {
        right: 0;
    }
    
    .nav-link {
        font-size: 16px;
    }
    
    .benefit-item-fusion {
        flex-direction: row;
        text-align: left;
        padding: 24px;
        gap: 20px;
    }
    
    .benefit-icon-fusion {
        width: 48px;
        height: 48px;
        min-width: 48px;
    }
    
    .benefit-item-fusion h4 {
        font-size: 18px;
        margin-bottom: 6px;
    }
    
    .benefit-item-fusion p {
        font-size: 14px;
    }
}

/* Smooth animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Additional scroll effects */
@media (prefers-reduced-motion: no-preference) {
    .feature-card-fusion,
    .benefit-item-fusion {
        transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
                    transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    }
}