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

:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --secondary-color: #8b5cf6;
    --accent-color: #06b6d4;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    --background: #ffffff;
    --background-secondary: #f9fafb;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --gradient-primary: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    --gradient-accent: linear-gradient(135deg, var(--accent-color) 0%, var(--primary-color) 100%);
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--background);
    overflow-x: hidden;
    -webkit-tap-highlight-color: transparent;
}

/* Container and Layout */
.container {
    min-height: 100vh;
    position: relative;
    overflow: hidden;
}

.content {
    position: relative;
    z-index: 10;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}

/* Background Animation */
.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    overflow: hidden;
}

.floating-shapes {
    position: absolute;
    width: 100%;
    height: 100%;
}

.shape {
    position: absolute;
    border-radius: 50%;
    background: var(--gradient-primary);
    opacity: 0.1;
    animation: float 20s infinite linear;
}

.shape-1 {
    width: 80px;
    height: 80px;
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.shape-2 {
    width: 120px;
    height: 120px;
    top: 20%;
    right: 15%;
    animation-delay: -5s;
}

.shape-3 {
    width: 60px;
    height: 60px;
    bottom: 30%;
    left: 20%;
    animation-delay: -10s;
}

.shape-4 {
    width: 100px;
    height: 100px;
    bottom: 20%;
    right: 10%;
    animation-delay: -15s;
}

.shape-5 {
    width: 40px;
    height: 40px;
    top: 50%;
    left: 50%;
    animation-delay: -7s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    25% {
        transform: translateY(-20px) rotate(90deg);
    }
    50% {
        transform: translateY(-40px) rotate(180deg);
    }
    75% {
        transform: translateY(-20px) rotate(270deg);
    }
}

/* Logo Section */
.logo-section {
    margin-bottom: 3rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.logo-icon {
    width: 48px;
    height: 48px;
    color: var(--primary-color);
    animation: pulse 2s infinite;
}

.brand-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.025em;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

/* Hero Section */
.hero-section {
    margin-bottom: 4rem;
    max-width: 800px;
}

.main-title {
    font-size: clamp(2.5rem, 8vw, 4rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.025em;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.title-line {
    display: block;
    opacity: 0;
    animation: fadeInUp 0.8s ease-out forwards;
}

.title-line:nth-child(1) { animation-delay: 0.2s; }
.title-line:nth-child(2) { animation-delay: 0.4s; }
.title-line:nth-child(3) { animation-delay: 0.6s; }

.highlight {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    font-size: clamp(1.1rem, 4vw, 1.25rem);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 0.8s forwards;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Features Section */
.features-section {
    margin-bottom: 4rem;
    width: 100%;
    max-width: 900px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.feature-card {
    background: var(--background);
    padding: 2rem 1.5rem;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 1s forwards;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.feature-card:nth-child(2) { animation-delay: 1.2s; }
.feature-card:nth-child(3) { animation-delay: 1.4s; }

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

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

/* CTA Section */
.cta-section {
    margin-bottom: 4rem;
    width: 100%;
    max-width: 500px;
}

.email-signup {
    background: var(--background);
    padding: 2.5rem 2rem;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 1.6s forwards;
}

.email-signup h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.email-signup p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.signup-form {
    margin-bottom: 1rem;
}

.input-group {
    display: flex;
    gap: 0.75rem;
    background: var(--background-secondary);
    border-radius: 12px;
    padding: 0.25rem;
    border: 1px solid var(--border-color);
}

#emailInput {
    flex: 1;
    border: none;
    background: transparent;
    padding: 1rem 1.25rem;
    font-size: 1rem;
    color: var(--text-primary);
    outline: none;
    border-radius: 8px;
}

#emailInput::placeholder {
    color: var(--text-light);
}

#emailInput:focus {
    background: var(--background);
    box-shadow: var(--shadow-sm);
}

.submit-btn {
    background: var(--gradient-primary);
    color: white;
    border: none;
    padding: 1rem 1.5rem;
    border-radius: 8px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    white-space: nowrap;
}

.submit-btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.submit-btn:active {
    transform: translateY(0);
}

.btn-icon {
    transition: transform 0.3s ease;
}

.submit-btn:hover .btn-icon {
    transform: translateX(2px);
}

.success-message {
    display: none;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: #ecfdf5;
    border: 1px solid #a7f3d0;
    border-radius: 8px;
    color: #065f46;
}

.success-message.show {
    display: flex;
}

.success-icon {
    font-size: 1.25rem;
    font-weight: bold;
}

/* Social Section */
.social-section {
    margin-bottom: 3rem;
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 2s forwards;
}

.social-text {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--background-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-secondary);
    transition: all 0.3s ease;
    text-decoration: none;
}

.social-link:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Footer */
.footer {
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 2.2s forwards;
}

.footer p {
    color: var(--text-light);
    font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .content {
        padding: 1.5rem 1rem;
    }
    
    .logo {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .brand-name {
        font-size: 1.25rem;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .feature-card {
        padding: 1.5rem 1.25rem;
    }
    
    .email-signup {
        padding: 2rem 1.5rem;
    }
    
    .input-group {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .submit-btn {
        width: 100%;
        justify-content: center;
    }
    
    .social-links {
        gap: 1rem;
    }
    
    .social-link {
        width: 44px;
        height: 44px;
    }
}

@media (max-width: 480px) {
    .content {
        padding: 1rem 0.75rem;
    }
    
    .main-title {
        font-size: 2.25rem;
    }
    
    .subtitle {
        font-size: 1rem;
    }
    
    .feature-card {
        padding: 1.25rem 1rem;
    }
    
    .email-signup {
        padding: 1.5rem 1.25rem;
    }
    
    .social-links {
        gap: 0.75rem;
    }
    
    .social-link {
        width: 40px;
        height: 40px;
    }
}

/* iPad Specific Optimizations */
@media (min-width: 768px) and (max-width: 1024px) {
    .content {
        padding: 3rem 2rem;
    }
    
    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .main-title {
        font-size: 3.5rem;
    }
    
    .subtitle {
        font-size: 1.2rem;
    }
}

/* Landscape iPhone */
@media (max-width: 896px) and (orientation: landscape) {
    .content {
        padding: 1rem 1.5rem;
        min-height: auto;
    }
    
    .hero-section {
        margin-bottom: 2rem;
    }
    
    .features-section {
        margin-bottom: 2rem;
    }
    
    .cta-section {
        margin-bottom: 2rem;
    }
}

/* High DPI Displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .shape {
        transform: scale(0.5);
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    :root {
        --text-primary: #f9fafb;
        --text-secondary: #d1d5db;
        --text-light: #9ca3af;
        --background: #111827;
        --background-secondary: #1f2937;
        --border-color: #374151;
    }
    
    .feature-card,
    .email-signup {
        background: var(--background-secondary);
        border-color: var(--border-color);
    }
    
    #emailInput {
        color: var(--text-primary);
    }
    
    .input-group {
        background: var(--background);
    }
    
    .social-link {
        background: var(--background-secondary);
        border-color: var(--border-color);
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .floating-shapes {
        display: none;
    }
}

/* Focus Styles for Accessibility */
.submit-btn:focus,
.social-link:focus,
#emailInput:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Loading States */
.submit-btn.loading {
    pointer-events: none;
    opacity: 0.7;
}

.submit-btn.loading .btn-text {
    opacity: 0;
}

.submit-btn.loading .btn-icon {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}