/* ==========================================================================
   Base Styles & Variables
   ========================================================================== */
   :root {
    /* Colors */
    --clr-primary: #0A192F; /* Deep Navy Blue */
    --clr-primary-light: #112240;
    --clr-primary-lighter: #233554;
    --clr-secondary: #00D26A; /* WhatsApp Green */
    --clr-secondary-hover: #00b35a;
    --clr-accent: #3B82F6; /* Tech Blue */
    
    --clr-text: #8892B0;
    --clr-text-light: #CCD6F6;
    --clr-text-dark: #FFFFFF;
    
    --clr-bg: #EAEFF2;
    --clr-surface: #FFFFFF;
    --clr-surface-dark: #0A192F;
    
    --clr-red: #EF4444;
    --clr-border: rgba(10, 25, 47, 0.1);
    
    /* Typography */
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    
    /* Layout */
    --container-width: 1200px;
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    
    /* Shadows */
    --shadow-sm: 0 4px 6px rgba(10, 25, 47, 0.05);
    --shadow-md: 0 10px 30px rgba(10, 25, 47, 0.1);
    --shadow-lg: 0 20px 40px rgba(10, 25, 47, 0.15);
    --shadow-glow: 0 0 20px rgba(0, 210, 106, 0.4);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    color: var(--clr-primary-light);
    background-color: var(--clr-surface);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* Typography Utility */
.highlight-green {
    color: var(--clr-secondary);
    font-weight: 800;
}
.highlight-blue {
    color: var(--clr-accent);
}
.text-center {
    text-align: center;
}
.text-red {
    color: var(--clr-red);
}
.text-green {
    color: var(--clr-secondary);
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    outline: none;
}

.btn-primary {
    background-color: var(--clr-secondary);
    color: var(--clr-surface);
    box-shadow: 0 4px 12px rgba(0, 210, 106, 0.3);
}

.btn-primary:hover {
    background-color: var(--clr-secondary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 210, 106, 0.4);
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--clr-text-dark);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.btn-outline {
    background-color: transparent;
    color: var(--clr-primary);
    border: 2px solid var(--clr-primary);
}

.btn-outline:hover {
    background-color: var(--clr-primary-light);
    color: var(--clr-surface);
}

.btn-large {
    padding: 16px 32px;
    font-size: 1.1rem;
    border-radius: var(--radius-md);
}

.btn-block {
    width: 100%;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(10, 25, 47, 0.85); /* Dark background for header */
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255,255,255,0.05);
    transition: var(--transition);
    padding: 16px 0;
}

.header.scrolled {
    padding: 12px 0;
    background-color: rgba(10, 25, 47, 0.95);
    box-shadow: var(--shadow-sm);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--clr-text-dark); /* Logo is white */
}

.logo i {
    color: var(--clr-secondary);
    font-size: 2rem;
}

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

.nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 24px;
}

.nav-link {
    color: var(--clr-text-light);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--clr-secondary);
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--clr-text-dark);
}

.nav-link:hover::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--clr-text-dark);
    font-size: 1.8rem;
    cursor: pointer;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    position: relative;
    padding: 180px 0 100px;
    background-color: var(--clr-surface-dark); /* Dark hero background */
    color: var(--clr-text-dark);
    overflow: hidden;
}

.hero-bg-glow {
    position: absolute;
    top: -20%;
    right: -10%;
    width: 60%;
    height: 80%;
    background: radial-gradient(circle, rgba(0, 210, 106, 0.15) 0%, rgba(10, 25, 47, 0) 70%);
    filter: blur(80px);
    z-index: 0;
    pointer-events: none;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 600px;
    animation: fadeUp 0.8s ease-out forwards;
}

.badge {
    display: inline-block;
    padding: 6px 16px;
    background-color: rgba(0, 210, 106, 0.1);
    color: var(--clr-secondary);
    border: 1px solid rgba(0, 210, 106, 0.2);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 24px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.hero-title {
    font-size: 3.5rem;
    line-height: 1.1;
    font-weight: 800;
    margin-bottom: 24px;
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--clr-text-light);
    margin-bottom: 40px;
    max-width: 90%;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 40px;
}

.hero-social-proof {
    display: flex;
    align-items: center;
    gap: 16px;
    color: var(--clr-text-light);
    font-size: 0.9rem;
}

.avatars {
    display: flex;
}

.avatars img, .avatar-more {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 2px solid var(--clr-surface-dark);
    margin-left: -12px;
}

.avatars img:first-child {
    margin-left: 0;
}

.avatar-more {
    background-color: var(--clr-primary-lighter);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.75rem;
    color: var(--clr-text-dark);
}

.hero-image-wrapper {
    position: relative;
    animation: fadeLeft 1s ease-out forwards;
}

.blob {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 450px;
    height: 450px;
    background: linear-gradient(135deg, var(--clr-primary-light) 0%, rgba(10,25,47,0) 100%);
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    z-index: -1;
    animation: blobMorph 8s linear infinite;
}

.hero-image {
    width: 100%;
    max-width: 450px;
    margin: 0 auto;
    filter: drop-shadow(0 30px 40px rgba(0,0,0,0.5));
    border-radius: var(--radius-lg);
}

.floating-card {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255,255,255,0.1);
    padding: 16px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: var(--shadow-lg);
    animation: float 6s ease-in-out infinite;
}

.card-1 {
    top: 20%;
    left: -20px;
    animation-delay: 0s;
}

.card-2 {
    bottom: 30%;
    right: -40px;
    animation-delay: 3s;
}

.card-icon {
    width: 40px;
    height: 40px;
    background-color: var(--clr-accent);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.card-icon.whatsapp {
    background-color: var(--clr-secondary);
}

.card-text {
    display: flex;
    flex-direction: column;
}

.card-text strong {
    color: white;
    font-size: 0.95rem;
}

.card-text span {
    color: var(--clr-text-light);
    font-size: 0.8rem;
}

/* ==========================================================================
   Sections General
   ========================================================================== */
section {
    padding: 100px 0;
}

.section-header {
    margin-bottom: 64px;
    max-width: 800px;
}

.text-center.section-header {
    margin-left: auto;
    margin-right: auto;
}

.section-title {
    font-size: 2.5rem;
    color: var(--clr-primary);
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.section-subtitle {
    font-size: 1.15rem;
    color: var(--clr-text);
}

/* ==========================================================================
   Problem vs Solution
   ========================================================================== */
.problem-solution {
    background-color: var(--clr-bg);
}

.comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.comparison-card {
    background: var(--clr-surface);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--clr-border);
}

.comparison-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-5px);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--clr-border);
}

.card-header i {
    font-size: 2.5rem;
}

.card-header h3 {
    font-size: 1.5rem;
    color: var(--clr-primary);
}

.comparison-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.comparison-list li {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    font-size: 1.05rem;
    color: var(--clr-primary-light);
}

.comparison-list i {
    font-size: 1.4rem;
    margin-top: 2px;
}

.problem .comparison-list i {
    color: var(--clr-red);
}

.solution {
    position: relative;
    border: 2px solid var(--clr-secondary);
    box-shadow: 0 10px 40px rgba(0, 210, 106, 0.1);
}

.solution .comparison-list i {
    color: var(--clr-secondary);
}

/* ==========================================================================
   Features
   ========================================================================== */
.features {
    background-color: var(--clr-surface);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.feature-card {
    padding: 32px;
    border-radius: var(--radius-md);
    background-color: var(--clr-surface);
    border: 1px solid var(--clr-border);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: rgba(10, 25, 47, 0.2);
}

.feature-icon {
    width: 56px;
    height: 56px;
    background-color: rgba(59, 130, 246, 0.1);
    color: var(--clr-accent);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin-bottom: 24px;
    transition: var(--transition);
}

.feature-card:hover .feature-icon {
    background-color: var(--clr-accent);
    color: white;
}

.feature-card h3 {
    font-size: 1.3rem;
    color: var(--clr-primary);
    margin-bottom: 12px;
}

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

/* ==========================================================================
   Pricing
   ========================================================================== */
.pricing {
    background-color: var(--clr-bg);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    align-items: center;
    margin-bottom: 40px;
}

.pricing-card {
    background-color: var(--clr-surface);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--clr-border);
    position: relative;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.pricing-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.pricing-card.popular {
    border: 2px solid var(--clr-secondary);
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
    z-index: 10;
}

.pricing-card.popular:hover {
    transform: scale(1.05) translateY(-5px);
}

.popular-badge {
    position: absolute;
    top: -16px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--clr-secondary);
    color: white;
    padding: 6px 20px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    box-shadow: 0 4px 10px rgba(0,210,106,0.3);
}

.pricing-header {
    text-align: center;
    margin-bottom: 32px;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--clr-border);
}

.pricing-header h3 {
    font-size: 1.5rem;
    color: var(--clr-primary);
    margin-bottom: 12px;
}

.pricing-header p {
    font-size: 0.9rem;
    color: var(--clr-text);
    min-height: 44px;
}

.price {
    margin-top: 24px;
    color: var(--clr-primary);
}

.currency {
    font-size: 1.5rem;
    font-weight: 600;
    vertical-align: super;
}

.value {
    font-size: 3.5rem;
    font-weight: 800;
    letter-spacing: -2px;
}

.period {
    color: var(--clr-text);
    font-weight: 500;
}

.pricing-features {
    margin-bottom: 40px;
    flex-grow: 1;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    color: var(--clr-primary-light);
    font-size: 0.95rem;
}

.pricing-features i {
    color: var(--clr-secondary);
    font-size: 1.2rem;
}

.pricing-features li.disabled {
    color: #A0AABF;
    text-decoration: line-through;
}

.pricing-features li.disabled i {
    color: #A0AABF;
}

.payment-methods {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    margin-top: 40px;
    color: var(--clr-text);
}

.payment-icons {
    display: flex;
    gap: 16px;
    font-size: 2.5rem;
    color: var(--clr-primary-light);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    background-color: var(--clr-surface-dark);
    color: var(--clr-text-light);
    padding: 80px 0 0;
}

.footer-container {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 60px;
}

.brand-col .logo {
    margin-bottom: 24px;
}

.brand-col p {
    font-size: 0.95rem;
    margin-bottom: 24px;
    opacity: 0.8;
}

.social-links {
    display: flex;
    gap: 16px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background-color: rgba(255,255,255,0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 1.2rem;
}

.social-links a:hover {
    background-color: var(--clr-secondary);
    color: white;
}

.footer-col h4 {
    color: white;
    font-size: 1.1rem;
    margin-bottom: 24px;
}

.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-col a {
    font-size: 0.95rem;
    opacity: 0.8;
}

.footer-col a:hover {
    opacity: 1;
    color: var(--clr-secondary);
}

.footer-bottom {
    padding: 24px 0;
    border-top: 1px solid rgba(255,255,255,0.1);
    text-align: center;
    font-size: 0.9rem;
    opacity: 0.7;
}

/* ==========================================================================
   Animations
   ========================================================================== */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

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

@keyframes blobMorph {
    0%, 100% {
        border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    }
    25% {
        border-radius: 58% 42% 75% 25% / 76% 46% 54% 24%;
    }
    50% {
        border-radius: 50% 50% 33% 67% / 55% 27% 73% 45%;
    }
    75% {
        border-radius: 33% 67% 58% 42% / 63% 68% 32% 37%;
    }
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */
@media (max-width: 1024px) {
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .pricing-card.popular {
        transform: scale(1);
    }
    .pricing-card.popular:hover {
        transform: translateY(-5px);
    }
    .hero-title {
        font-size: 3rem;
    }
}

@media (max-width: 992px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-content {
        margin: 0 auto;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-social-proof {
        justify-content: center;
    }

    .hero-bg-glow {
        right: 50%;
        transform: translateX(50%);
        width: 100%;
        top: 0;
    }
    
    .hero-image-wrapper {
        margin-top: 40px;
    }
    
    .blob {
        width: 350px;
        height: 350px;
    }
    
    .floating-card {
        display: none; /* Hide floating cards on smaller screens for cleaner look */
    }

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

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-container {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
        color: white;
    }

    .nav {
        position: fixed;
        top: 72px;
        left: 0;
        width: 100%;
        background-color: var(--clr-surface-dark);
        flex-direction: column;
        padding: 40px 24px;
        gap: 24px;
        transform: translateY(-150%);
        transition: var(--transition);
        border-bottom: 1px solid rgba(255,255,255,0.05);
        box-shadow: var(--shadow-md);
    }

    .nav.active {
        transform: translateY(0);
    }

    .nav-list {
        flex-direction: column;
        width: 100%;
        gap: 24px;
    }

    .nav-cta {
        width: 100%;
    }

    .hero-title {
        font-size: 2.2rem;
    }

    .hero-actions {
        flex-direction: column;
    }

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

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

@media (max-width: 480px) {
    .section-title {
        font-size: 2rem;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}