/* General Body & Typography */
body {
    font-family: 'Inter', sans-serif;
    background-color: #0B0A0F;
    color: #E2E8F0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Gradients & Effects */
.glass-effect {
    background: rgba(22, 21, 28, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.hero-gradient {
    background: 
        radial-gradient(circle at 20% 50%, rgba(59, 130, 246, 0.15), transparent 50%),
        radial-gradient(circle at 80% 30%, rgba(139, 92, 246, 0.15), transparent 50%),
        linear-gradient(135deg, #0B0A0F 0%, #1a1625 100%);
}

.logo-gradient {
    background: linear-gradient(135deg, #3B82F6 0%, #8B5CF6 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

/* Buttons */
.btn-primary {
    background: linear-gradient(135deg, #3B82F6 0%, #8B5CF6 100%);
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.3);
    transition: all 0.3s ease;
}

.btn-primary:hover {
    box-shadow: 0 8px 30px rgba(59, 130, 246, 0.4);
    transform: translateY(-2px);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

/* Animations */
@keyframes float-gentle {
    0%, 100% { transform: translateY(0) rotate(-0.5deg); }
    50% { transform: translateY(-15px) rotate(0.5deg); }
}

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

.floating-message:nth-child(2) { 
    animation-duration: 10s;
    animation-delay: 1s; 
}
.floating-message:nth-child(3) { 
    animation-duration: 9s;
    animation-delay: 2s; 
}

.fade-in-up {
    animation: fadeInUp 0.8s ease-out forwards;
}

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

.typing-indicator span {
    animation: blink 1.4s infinite both;
}
.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }

@keyframes blink {
    0%, 50% { background-color: #3B82F6; }
    51%, 100% { background-color: #374151; }
}

/* App-Specific Styles */
.response-card {
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(20px);
}

.response-card.show {
    opacity: 1;
    transform: translateY(0);
}

.response-card:hover {
    transform: translateY(-3px);
}

.feature-icon {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.tone-selector {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 24px;
}

.tone-option {
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 16px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.tone-option:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
}

.tone-option.active {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.2) 0%, rgba(139, 92, 246, 0.2) 100%);
    border-color: #3B82F6;
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.3);
}

.tone-emoji {
    font-size: 24px;
    margin-bottom: 8px;
    display: block;
}

.tone-label {
    font-weight: 600;
    font-size: 14px;
    color: #E2E8F0;
    margin-bottom: 4px;
}

.tone-description {
    font-size: 12px;
    color: #94A3B8;
    line-height: 1.3;
}

/* Mobile & iPhone Mockup Styles */
.mobile-cta {
    position: fixed;
    bottom: 20px;
    left: 20px;
    right: 20px;
    z-index: 40;
    opacity: 0;
    transform: translateY(100px);
    transition: all 0.3s ease;
}

.mobile-cta.show {
    opacity: 1;
    transform: translateY(0);
}

@media (min-width: 768px) {
    .mobile-cta {
        display: none;
    }
}

.iphone-container {
    background: #000;
    border-radius: 25px;
    padding: 8px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    max-width: 300px;
    margin: 0 auto;
}

.iphone-screen {
    background: #000;
    border-radius: 20px;
    padding: 20px 16px;
    min-height: 400px;
    position: relative;
}

.iphone-header {
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    text-align: center;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid #333;
}

.message-bubble {
    max-width: 80%;
    margin-bottom: 12px;
    padding: 12px 16px;
    border-radius: 18px;
    font-size: 14px;
    line-height: 1.4;
}

.message-received {
    background: #2C2C2E;
    color: #fff;
    margin-right: auto;
    border-bottom-left-radius: 6px;
}

.message-sent {
    background: #007AFF;
    color: #fff;
    margin-left: auto;
    border-bottom-right-radius: 6px;
}

.message-suggestion {
    background: linear-gradient(135deg, #3B82F6 0%, #8B5CF6 100%);
    color: #fff;
    margin-left: auto;
    border-bottom-right-radius: 6px;
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.4);
    position: relative;
}

.message-suggestion::after {
    content: "✨ ReplyLabs";
    position: absolute;
    bottom: -20px;
    right: 0;
    font-size: 10px;
    color: #8B5CF6;
    font-weight: 500;
}

/* Pricing & Testimonial Cards */
.pricing-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 32px 24px;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
}

.pricing-card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-4px);
}

.pricing-card.featured {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    border-color: #3B82F6;
    box-shadow: 0 0 30px rgba(59, 130, 246, 0.2);
}

.pricing-card.featured::before {
    content: "Most Popular";
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #3B82F6 0%, #8B5CF6 100%);
    color: white;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.testimonial-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 24px;
    transition: all 0.3s ease;
}

.testimonial-card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
}

.star-rating {
    color: #FCD34D;
    font-size: 16px;
    margin-bottom: 12px;
}

/* Support Page Specific */
.faq-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 20px;
    transition: all 0.3s ease;
}

.faq-item:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(59, 130, 246, 0.3);
}

/* Legal Pages (Terms/Privacy) Body Background */
.legal-body {
    background: linear-gradient(135deg, #0F172A 0%, #1E293B 50%, #334155 100%);
    min-height: 100vh;
}