@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Outfit:wght@400;600;700;800;900&display=swap');

:root {
    --primary: #25D366;
    --primary-dark: #128c7e;
    --secondary: #075e54;
    --secondary-dark: #0b141a;
    --accent: #dcf8c6;
    --text: #1e293b;
    --text-muted: #64748b;
    --bg: #f8fafc;
    --white: #ffffff;
    --glass: rgba(255, 255, 255, 0.8);
    --border: rgba(0, 0, 0, 0.05);
    --shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.1);
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 800;
    line-height: 1.1;
}

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

button {
    cursor: pointer;
    border: none;
    outline: none;
    transition: all 0.3s ease;
    font-family: var(--font-body);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Navbar */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    height: 72px;
    display: flex;
    align-items: center;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 900;
    font-family: var(--font-heading);
    color: var(--secondary);
}

.logo span {
    color: var(--primary);
}

.nav-links {
    display: none;
}

.menu-toggle {
    display: block;
    background: none;
    color: var(--secondary);
    padding: 0.5rem;
}

/* Mobile Nav Overlay */
.nav-links.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--white);
    padding: 2rem;
    gap: 1.5rem;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 10px 20px rgba(0,0,0,0.05);
}

.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 12px;
    font-weight: 700;
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
    box-shadow: 0 4px 14px rgba(37, 211, 102, 0.4);
    position: relative;
    overflow: hidden;
}

.btn-primary::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.2) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.3s;
}

.btn-primary:hover::after {
    opacity: 1;
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.6);
}

/* Hero Section */
.hero {
    padding: 3rem 0 5rem;
    background: linear-gradient(180deg, var(--white) 0%, #f1f5f9 100%);
    position: relative;
    overflow: hidden;
    text-align: center;
}

.hero .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3rem;
}

.badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--accent);
    color: var(--secondary);
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1.5rem;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1.25rem;
    color: var(--secondary);
    letter-spacing: -0.02em;
}

.hero h1 span {
    display: block;
    color: var(--primary);
    background: linear-gradient(90deg, var(--primary), #128c7e);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.15rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.5;
}

.hero-btns {
    width: 100%;
    display: flex;
    justify-content: center;
}

.btn-large {
    padding: 1.25rem 2.5rem;
    font-size: 1.1rem;
    border-radius: 16px;
    width: 100%;
    max-width: 320px;
    justify-content: center;
}

/* Phone Mockup */
.mockup-container {
    position: relative;
    max-width: 280px;
    margin: 0 auto;
}

.phone {
    background: #111;
    border: 12px solid #222;
    border-radius: 48px;
    height: 560px;
    overflow: hidden;
    position: relative;
    box-shadow: 
        0 40px 100px -20px rgba(7, 94, 84, 0.3),
        0 0 0 1px rgba(255, 255, 255, 0.1) inset;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

.phone-header {
    background: #075e54;
    padding: 1rem;
    color: white;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.avatar {
    width: 36px;
    height: 36px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.phone-content {
    background: #e5ddd5; /* WhatsApp background color */
    background-image: url('https://user-images.githubusercontent.com/15075759/28719144-86dc0f70-73b1-11e7-911d-60d70fcded21.png');
    height: calc(100% - 68px);
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.message {
    max-width: 85%;
    padding: 0.75rem;
    border-radius: 12px;
    font-size: 0.85rem;
    position: relative;
    box-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

.received {
    background: white;
    align-self: flex-start;
    border-top-left-radius: 2px;
}

.sent {
    background: #dcf8c6;
    align-self: flex-end;
    border-top-right-radius: 2px;
}

.pdf-preview {
    background: white;
    padding: 0.75rem;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-top: 0.5rem;
    border: 1px solid #ddd;
}

/* Sections */
.section {
    padding: 6rem 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem;
}

.section-header h2 {
    font-size: 2.25rem;
    color: var(--secondary);
    margin-bottom: 1rem;
}

/* Feature Grid */
.grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 24px;
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow);
}

.card-icon {
    width: 56px;
    height: 56px;
    background: var(--bg);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--primary);
}

/* Problem/Solution */
.split-section {
    display: grid;
    grid-template-columns: 1fr;
    gap: 4rem;
    align-items: center;
}

.problem-list {
    list-style: none;
    margin-top: 2rem;
}

.problem-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.icon-circle {
    width: 24px;
    height: 24px;
    background: #fee2e2;
    color: #ef4444;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.solution-box {
    background: var(--secondary);
    color: var(--white);
    padding: 3rem;
    border-radius: 32px;
    position: relative;
    overflow: hidden;
}

.solution-box h3 {
    margin-bottom: 2rem;
    font-size: 1.75rem;
}

.check-list {
    list-style: none;
}

.check-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.25rem;
    font-weight: 600;
}

.check-icon {
    color: var(--primary);
}

/* Pricing */
.pricing-card {
    background: var(--white);
    padding: 3rem;
    border-radius: 40px;
    border: 4px solid var(--primary);
    max-width: 450px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    box-shadow: 0 30px 60px -12px rgba(37, 211, 102, 0.2);
}

.price {
    font-size: 4rem;
    font-weight: 900;
    color: var(--secondary);
    font-family: var(--font-heading);
    margin: 1rem 0;
}

.price span {
    font-size: 1.25rem;
    color: var(--text-muted);
}

/* Footer */
footer {
    background: var(--secondary-dark);
    color: var(--white);
    padding: 6rem 0 8rem;
    text-align: center;
}

.footer-logo {
    font-size: 1.75rem;
    font-weight: 900;
    margin-bottom: 2rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 3rem;
    opacity: 0.7;
}

/* Mobile CTA */
.sticky-cta {
    position: fixed;
    bottom: 1.5rem;
    left: 1rem;
    right: 1rem;
    z-index: 999;
}

.sticky-cta .btn {
    width: 100%;
    justify-content: center;
    padding: 1.25rem;
    font-size: 1.1rem;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

/* Desktop Styles */
@media (min-width: 768px) {
    .sticky-cta {
        display: none;
    }

    .menu-toggle {
        display: none;
    }

    .nav-links {
        display: flex;
        gap: 2.5rem;
        align-items: center;
    }
    
    .hero h1 {
        font-size: 4.5rem;
    }
    
    .nav-links a {
        font-weight: 600;
        font-size: 0.95rem;
    }

    .grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .split-section {
        grid-template-columns: 1fr 1fr;
    }
    
    .hero {
        text-align: left;
        padding: 6rem 0;
    }

    .hero .container {
        flex-direction: row;
        align-items: center;
        gap: 6rem;
    }
    
    .hero-text {
        flex: 1.2;
        text-align: left;
    }
    
    .hero h1 {
        font-size: 5rem;
    }

    .hero h1 span {
        display: inline;
    }

    .hero p {
        margin-left: 0;
        max-width: 550px;
        font-size: 1.25rem;
    }

    .hero-btns {
        justify-content: flex-start;
    }

    .btn-large {
        width: auto;
    }
    
    .hero-image {
        flex: 1;
        display: flex;
        justify-content: flex-end;
    }

    .mockup-container {
        max-width: 320px;
    }

    .phone {
        height: 640px;
    }

    .sticky-cta {
        display: none;
    }
}