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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
    scroll-behavior: smooth;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

/* Variables */
:root {
    --primary-color: #ff6b6b; /* Warm Red/Pink for "Heart" */
    --secondary-color: #ff8e8e;
    --accent-color: #4a90e2; /* Tech Blue */
    --text-color: #333;
    --light-text: #666;
    --bg-light: #f9f9f9;
    --white: #ffffff;
    --border-radius: 8px;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

p {
    margin-bottom: 1rem;
    color: var(--light-text);
}

/* Layout Utilities */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--text-color);
    position: relative;
    padding-bottom: 15px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background-color: var(--primary-color);
    border-radius: 2px;
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 10px 24px;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    text-align: center;
    transition: var(--transition);
    border: 2px solid transparent;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
}

.btn-primary:hover {
    background-color: #ff5252;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 107, 107, 0.3);
}

.btn-outline {
    background-color: transparent;
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.btn-outline:hover {
    background-color: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
}

.btn-light {
    background-color: var(--white);
    color: var(--primary-color);
}

.btn-light:hover {
    background-color: #eee;
    transform: translateY(-2px);
}

.btn-lg {
    padding: 12px 32px;
    font-size: 1.1rem;
}

/* Header */
.header {
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 15px 0;
}

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

.logo h1 {
    color: var(--primary-color);
    font-size: 1.8rem;
    margin-bottom: 0;
}

.nav ul {
    display: flex;
    gap: 30px;
}

.nav a {
    font-weight: 500;
    color: var(--text-color);
}

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

.cta-button-header .btn {
    padding: 8px 20px;
    font-size: 0.9rem;
}

/* Hero Section */
.hero {
    padding: 80px 0;
    background: linear-gradient(135deg, #fff5f5 0%, #fff 100%);
    overflow: hidden;
}

.hero .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.hero-content {
    flex: 1;
}

.hero-content h2 {
    font-size: 3.5rem;
    color: var(--text-color);
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 15px;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    position: relative;
}

/* Phone Mockup */
.phone-mockup {
    width: 280px;
    height: 560px;
    background-color: #333;
    border-radius: 36px;
    padding: 12px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.2);
    border: 4px solid #444;
    position: relative;
    z-index: 1;
}

.screen {
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, #ff9a9e 0%, #fad0c4 99%, #fad0c4 100%);
    border-radius: 24px;
    overflow: hidden;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}

/* Mockup Elements */
.live-badge {
    position: absolute;
    top: 20px;
    left: 20px;
    background-color: rgba(0,0,0,0.4);
    color: #fff;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.8rem;
    display: flex;
    align-items: center;
}

.live-badge::before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    background-color: #ff4757;
    border-radius: 50%;
    margin-right: 6px;
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.5; }
    100% { opacity: 1; }
}

.viewer-count {
    position: absolute;
    top: 20px;
    right: 20px;
    color: #fff;
    font-size: 0.8rem;
    text-shadow: 0 1px 2px rgba(0,0,0,0.5);
}

.comments {
    padding: 10px 15px;
    margin-bottom: 80px;
}

.comment {
    background-color: rgba(0,0,0,0.3);
    color: #fff;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.8rem;
    margin-bottom: 6px;
    display: inline-block;
    max-width: 90%;
}

.comment span {
    color: #ffd700;
    margin-right: 4px;
}

.product-card {
    position: absolute;
    bottom: 20px;
    left: 15px;
    right: 15px;
    background-color: #fff;
    border-radius: 12px;
    padding: 8px;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.product-img {
    width: 40px;
    height: 40px;
    background-color: #eee;
    border-radius: 6px;
}

.product-info {
    flex: 1;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.product-info .price {
    color: #ff4757;
    font-weight: bold;
}

.product-info .buy-btn {
    background-color: #ff4757;
    color: #fff;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 0.8rem;
}

/* Features Section */
.features {
    padding: 80px 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background-color: var(--white);
    padding: 40px 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
    border: 1px solid #eee;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.feature-card .icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--text-color);
}

/* Audience Section */
.audience {
    padding: 80px 0;
}

.audience-list {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 30px;
}

.audience-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    width: 200px;
}

.audience-item i {
    font-size: 3rem;
    color: var(--accent-color);
    margin-bottom: 15px;
    background-color: #eef4fc;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.audience-item span {
    font-weight: 600;
    color: var(--text-color);
}

/* Vision Section */
.vision {
    padding: 100px 0;
    background-image: linear-gradient(rgba(255, 107, 107, 0.9), rgba(255, 107, 107, 0.9)), url('https://source.unsplash.com/random/1920x1080/?team,meeting'); /* Fallback or placeholder */
    background-size: cover;
    background-position: center;
    color: var(--white);
    text-align: center;
}

.vision-content {
    max-width: 800px;
    margin: 0 auto;
}

.quote-icon {
    font-size: 2rem;
    opacity: 0.6;
    margin: 20px 0;
}

.vision h2 {
    font-size: 2.5rem;
    margin-bottom: 30px;
}

.vision-text {
    font-size: 1.8rem;
    font-style: italic;
    color: var(--white);
    font-weight: 300;
}

/* Download Section */
.download-section {
    padding: 80px 0;
    text-align: center;
    background-color: var(--primary-color);
    color: var(--white);
}

.download-section h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.download-section p {
    font-size: 1.2rem;
    margin-bottom: 2.5rem;
    color: rgba(255,255,255,0.9);
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

/* Footer */
.footer {
    background-color: #2d3436;
    color: #b2bec3;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo h2 {
    color: var(--white);
    font-size: 2rem;
}

.footer-links h3, .footer-contact h3 {
    color: var(--white);
    margin-bottom: 20px;
    font-size: 1.2rem;
}

.footer-links ul li {
    margin-bottom: 10px;
}

.footer-links a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    border-top: 1px solid #444;
    padding-top: 20px;
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        gap: 15px;
    }
    
    .nav ul {
        flex-wrap: wrap;
        justify-content: center;
        gap: 15px;
    }

    .hero .container {
        flex-direction: column;
        text-align: center;
    }

    .hero-content h2 {
        font-size: 2.5rem;
    }

    .hero-buttons {
        justify-content: center;
    }
    
    .phone-mockup {
        margin-top: 30px;
    }
}