/* ===================================
   Design System & CSS Variables
   =================================== */
:root {
    /* Color Palette */
    --color-bg-primary: #1a1a1a;
    --color-bg-secondary: #242424;
    --color-bg-card: #2a2a2a;
    --color-text-primary: #ffffff;
    --color-text-secondary: #b0b0b0;
    --color-accent: #ff6b35;
    --color-accent-hover: #ff8555;
    --color-accent-glow: rgba(255, 107, 53, 0.3);

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #ff6b35 0%, #ff8555 100%);
    --gradient-secondary: linear-gradient(135deg, #ff6b35 0%, #ffaa00 100%);
    --gradient-hero: radial-gradient(ellipse at top, rgba(255, 107, 53, 0.15) 0%, transparent 60%);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 3rem;
    --font-size-4xl: 4rem;

    /* Effects */
    --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);
    --shadow-glow: 0 0 30px var(--color-accent-glow);

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

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    overflow-x: hidden;
}

/* ===================================
   Typography
   =================================== */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: var(--font-size-4xl);
}

h2 {
    font-size: var(--font-size-3xl);
}

h3 {
    font-size: var(--font-size-xl);
}

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

/* ===================================
   Layout Components
   =================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

section {
    padding: var(--spacing-xl) 0;
    position: relative;
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    background: var(--color-bg-primary);
}

.hero-gradient {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    height: 100%;
    background: var(--gradient-hero);
    pointer-events: none;
    z-index: 0;
}

.hero .container {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.hero-content {
    animation: fadeInUp 0.8s ease;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    line-height: 1.1;
}

.gradient-text {
    background: var(--gradient-secondary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
}

.highlight-text {
    color: var(--color-accent);
    display: block;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    font-weight: 300;
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

/* ===================================
   Buttons
   =================================== */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    font-size: var(--font-size-lg);
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    transform: translate(-50%, -50%);
    transition: width var(--transition-slow), height var(--transition-slow);
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--color-text-primary);
    box-shadow: var(--shadow-md), var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), 0 0 40px var(--color-accent-glow);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text-primary);
    border: 2px solid var(--color-accent);
}

.btn-secondary:hover {
    background: var(--color-accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ===================================
   Hero Visual - Floating Cards
   =================================== */
.hero-visual {
    position: relative;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.floating-card {
    position: absolute;
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    min-width: 150px;
    transition: transform var(--transition-base);
}

.floating-card:hover {
    transform: translateY(-10px) scale(1.05);
}

.card-icon {
    font-size: 3rem;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.3));
}

.card-text {
    font-weight: 600;
    color: var(--color-text-primary);
    text-align: center;
}

.card-1 {
    top: 10%;
    left: 10%;
    animation: float 3s ease-in-out infinite;
}

.card-2 {
    top: 50%;
    right: 10%;
    transform: translateY(-50%);
    animation: float 3s ease-in-out infinite 0.5s;
}

.card-3 {
    bottom: 10%;
    left: 30%;
    animation: float 3s ease-in-out infinite 1s;
}

/* ===================================
   Value Proposition Section
   =================================== */
.value-prop {
    background: var(--color-bg-secondary);
    position: relative;
}

.section-title {
    text-align: center;
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    text-align: center;
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.feature-card {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent);
}

.feature-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-sm);
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.3));
}

.feature-card h3 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.feature-card p {
    color: var(--color-text-secondary);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
}

.feature-highlight {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.9rem;
}

/* ===================================
   How It Works Section
   =================================== */
.how-it-works {
    background: var(--color-bg-primary);
}

.steps-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.step {
    display: grid;
    grid-template-columns: 80px 1fr 80px;
    gap: var(--spacing-md);
    align-items: center;
    background: var(--color-bg-card);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all var(--transition-base);
    position: relative;
}

.step:hover {
    transform: translateX(10px);
    border-color: var(--color-accent);
    box-shadow: var(--shadow-md);
}

.step-number {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-align: center;
}

.step-content h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-xs);
}

.step-content p {
    color: var(--color-text-secondary);
    margin: 0;
}

.step-visual {
    font-size: 3rem;
    text-align: center;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.3));
}

.step-connector {
    height: 40px;
    width: 4px;
    background: var(--gradient-primary);
    margin-left: 38px;
    border-radius: 2px;
    opacity: 0.5;
}

/* ===================================
   Download Section
   =================================== */
.download {
    background: var(--color-bg-secondary);
    text-align: center;
}

.download-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--spacing-lg);
}

.store-button {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 1rem 2rem;
    background: var(--color-bg-card);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--color-text-primary);
    transition: all var(--transition-base);
    min-width: 200px;
}

.store-button:hover {
    transform: translateY(-4px);
    border-color: var(--color-accent);
    box-shadow: var(--shadow-md);
    background: var(--color-bg-primary);
}

.store-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.store-icon svg {
    width: 100%;
    height: 100%;
}

.store-text {
    text-align: left;
}

.store-label {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.store-name {
    font-size: 1.25rem;
    font-weight: 600;
}

/* ===================================
   Footer
   =================================== */
.footer {
    background: var(--color-bg-primary);
    padding: var(--spacing-md) 0;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer p {
    color: var(--color-text-secondary);
    margin: 0;
}

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

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

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-20px);
    }
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 968px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-visual {
        height: 400px;
    }

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

    .step {
        grid-template-columns: 60px 1fr 60px;
    }

    .step-number {
        font-size: var(--font-size-2xl);
    }

    .step-visual {
        font-size: 2rem;
    }
}

@media (max-width: 640px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: var(--font-size-base);
    }

    .section-title {
        font-size: 2rem;
    }

    .section-subtitle {
        font-size: var(--font-size-base);
    }

    .btn {
        padding: 0.875rem 1.5rem;
        font-size: var(--font-size-base);
    }

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

    .step {
        grid-template-columns: 1fr;
        text-align: center;
        padding: 0.75rem;
    }

    .step-content h3 {
        font-size: 1rem;
        margin-bottom: 0.25rem;
    }

    .step-content p {
        font-size: 0.8rem;
        line-height: 1.4;
    }

    .step-number {
        font-size: 1.25rem;
    }

    .step-visual {
        font-size: 1.5rem;
    }

    .step-connector {
        display: none;
    }

    .download-buttons {
        flex-direction: column;
        align-items: center;
    }

    .store-button {
        width: 100%;
        max-width: 300px;
    }

    .hero-visual {
        height: 250px;
    }

    .floating-card {
        min-width: 60px;
        max-width: 60px;
        padding: 0.6rem 0.4rem;
        gap: 0.3rem;
    }

    .card-icon {
        font-size: 1.5rem;
    }

    .card-text {
        font-size: 0.6rem;
        font-weight: 500;
        line-height: 1.2;
    }

    .card-1 {
        top: 8%;
        left: 5%;
    }

    .card-2 {
        top: 48%;
        right: 5%;
    }

    .card-3 {
        bottom: 8%;
        left: 20%;
    }
}