/* Reset and Base Styles */

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

:root {
    --primary-color: #fb715f;
    --primary-dark: #ee4842;
    --secondary-color: #764ba2;
    --accent-color: #f093fb;
    --text-dark: #1a202c;
    --text-light: #718096;
    --bg-light: #f7fafc;
    --bg-white: #ffffff;
    --border-color: #e2e8f0;
    --success-color: #48bb78;
    --gradient-primary: linear-gradient(135deg, #ee4842 0%, #fb715f 100%);
    --gradient-accent: linear-gradient(135deg, #2185ec 0%, #0055ab 100%);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.2);
}

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

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


/* Navigation */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.logo a {
    display: flex;
    align-items: center;
}

.logo i {
    font-size: 1.8rem;
}

.logo img {
    object-fit: contain;
    max-height: 60px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s ease;
}

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

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-dark);
    cursor: pointer;
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: white;
    box-shadow: var(--shadow-lg);
    z-index: 999;
    padding: 1rem;
}

.mobile-menu.active {
    display: block;
}

.mobile-menu ul {
    list-style: none;
}

.mobile-menu ul li {
    padding: 1rem;
}

.mobile-menu ul li a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    display: block;
}

.mobile-cta {
    margin-top: 1rem;
    width: 100%;
    text-align: center;
}


/* Buttons */

.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    font-size: 1rem;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: white;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

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

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}


/* Hero Section */

.hero {
    padding: 175px 0 80px;
    /* background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%); */
    background: url(../img/bnr-ing.jpg) no-repeat;
    background-size: cover;
    overflow: hidden;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

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

.hero-description {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
}

.hero-stats {
    display: flex;
    gap: 3rem;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-light);
}


/* Phone Mockup */

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

.phone-mockup {
    position: relative;
    z-index: 2;
}

.phone-frame {
    width: 280px;
    height: 560px;
    background: #1a202c;
    border-radius: 40px;
    padding: 12px;
    box-shadow: var(--shadow-xl);
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: white;
    border-radius: 32px;
    overflow: hidden;
}

.chat-preview {
    height: 100%;
    display: flex;
    flex-direction: column;
}

.chat-header {
    padding: 1rem;
    background: var(--gradient-primary);
    color: white;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.chat-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
}

.chat-name {
    font-weight: 600;
    font-size: 1rem;
}

.chat-status {
    font-size: 0.75rem;
    opacity: 0.9;
}

.chat-messages {
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    flex: 1;
}

.message {
    display: flex;
}

.message.received {
    justify-content: flex-start;
}

.message.sent {
    justify-content: flex-end;
}

.message-bubble {
    padding: 0.75rem 1rem;
    border-radius: 16px;
    max-width: 80%;
    font-size: 0.85rem;
}

.message.received .message-bubble {
    background: var(--bg-light);
    color: var(--text-dark);
}

.message.sent .message-bubble {
    background: var(--gradient-primary);
    color: white;
}


/* Floating Elements */

.floating-element {
    position: absolute;
    width: 60px;
    height: 60px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    box-shadow: var(--shadow-lg);
    animation: float 3s ease-in-out infinite;
}

.element-1 {
    background: var(--gradient-primary);
    top: 10%;
    right: 10%;
    animation-delay: 0s;
}

.element-2 {
    background: var(--gradient-accent);
    bottom: 20%;
    right: 5%;
    animation-delay: 1s;
}

.element-3 {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    top: 50%;
    left: -5%;
    animation-delay: 2s;
}

@keyframes float {
    0%,
    100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}


/* Section Styles */

section {
    padding: 80px 0;
}

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

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

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


/* Features Section */

.features {
    background: white;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.feature-card {
    padding: 2rem;
    background: var(--bg-light);
    border-radius: 16px;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    background: white;
}

.feature-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    background: var(--gradient-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.feature-description {
    color: var(--text-light);
    line-height: 1.7;
}


/* Screenshots Section */

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

.screenshots-carousel {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.screenshot-card {
    text-align: center;
}

.screenshot-mockup {
    background: white;
    border-radius: 20px;
    padding: 1.5rem;
    box-shadow: var(--shadow-md);
    margin-bottom: 1rem;
    transition: all 0.3s ease;
}

.screenshot-mockup:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.mockup-content {
    height: 400px;
    border-radius: 12px;
    overflow: hidden;
}

.mockup-header {
    padding: 1rem;
    background: var(--gradient-primary);
    color: white;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.back-btn {
    font-size: 1.5rem;
    cursor: pointer;
}


/* Chat List Mockup */

.chat-list {
    background: white;
}

.chat-item {
    display: flex;
    align-items: center;
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    gap: 1rem;
}

.chat-avatar-small {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    flex-shrink: 0;
}

.chat-details {
    flex: 1;
    min-width: 0;
    text-align: left;
}

.chat-name-small {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.chat-message-preview {
    font-size: 0.85rem;
    color: var(--text-light);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.chat-meta {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.5rem;
}

.chat-time {
    font-size: 0.75rem;
    color: var(--text-light);
}

.chat-badge {
    background: var(--primary-color);
    color: white;
    font-size: 0.7rem;
    padding: 0.15rem 0.5rem;
    border-radius: 10px;
    font-weight: 600;
}


/* Conversation Mockup */

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

.conversation-messages {
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.conv-message {
    display: flex;
}

.conv-message.received {
    justify-content: flex-start;
}

.conv-message.sent {
    justify-content: flex-end;
}

.conv-bubble {
    padding: 0.75rem 1rem;
    border-radius: 16px;
    max-width: 70%;
    text-align: left;
}

.conv-message.received .conv-bubble {
    background: white;
}

.conv-message.sent .conv-bubble {
    background: var(--gradient-primary);
    color: white;
}


/* Video Call Mockup */

.video-call {
    background: #1a202c;
    position: relative;
}

.video-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
    padding: 1rem;
    height: 320px;
}

.video-participant {
    background: linear-gradient(135deg, #434343 0%, #000000 100%);
    border-radius: 8px;
    position: relative;
    display: flex;
    align-items: flex-end;
    padding: 0.75rem;
}

.participant-label {
    color: white;
    font-size: 0.85rem;
    font-weight: 500;
}

.video-controls {
    position: absolute;
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 1rem;
}

.control-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.control-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

.control-btn.end {
    background: #f56565;
}

.screenshot-title {
    font-size: 1.1rem;
    font-weight: 600;
}


/* Benefits Section */

.benefits {
    background: white;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.benefit-item {
    display: flex;
    gap: 1.5rem;
    padding: 1.5rem;
    background: var(--bg-light);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.benefit-item:hover {
    background: white;
    box-shadow: var(--shadow-md);
    transform: translateX(8px);
}

.benefit-icon {
    width: 50px;
    height: 50px;
    flex-shrink: 0;
    border-radius: 10px;
    background: var(--gradient-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.benefit-text h4 {
    font-size: 1.15rem;
    margin-bottom: 0.5rem;
}

.benefit-text p {
    color: var(--text-light);
    line-height: 1.6;
}


/* Testimonials Section */

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

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.testimonial-card {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.testimonial-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.testimonial-stars {
    color: #ffd700;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.testimonial-text {
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 1.5rem;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
}

.author-name {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.author-title {
    font-size: 0.85rem;
    color: var(--text-light);
}


/* Download Section */

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

.download-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.download-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.download-description {
    font-size: 1.15rem;
    opacity: 0.95;
    margin-bottom: 2rem;
    line-height: 1.7;
}

.download-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2rem;
}

.store-btn {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    background: white;
    color: var(--text-dark);
    border-radius: 12px;
    text-decoration: none;
    transition: all 0.3s ease;
}

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

.store-btn i {
    font-size: 2rem;
}

.store-label {
    font-size: 0.75rem;
    color: var(--text-light);
}

.store-name {
    font-size: 1rem;
    font-weight: 600;
}

.download-or {
    text-align: center;
    margin: 2rem 0;
    opacity: 0.9;
}

.signup-form {
    display: flex;
    gap: 1rem;
    max-width: 500px;
}

.email-input {
    flex: 1;
    padding: 1rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
}

.email-input:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.3);
}

.about-us {
    width: 100%;
    padding-top: 150px;
}

.about-us .section-title {
    color: #f3584e;
}

.about-content {
    width: 75%;
    margin: 0 auto;
}

.about-content p {
    margin-bottom: 50px;
    font-size: 16px;
    text-align: justify;
}

.about-content p:last-child {
    margin-bottom: 0;
}

.privacy {
    width: 100%;
    padding-top: 150px;
}

.privacy .section-title {
    color: #f3584e;
}

.privacy-content {
    width: 75%;
    margin: 0 auto;
}

.privacy-content p {
    margin-bottom: 50px;
    font-size: 16px;
    text-align: justify;
}

.privacy-content p b {
    display: block;
    font-size: 20px;
    margin-bottom: 15px;
}

.privacy-content p:last-child {
    margin-bottom: 0;
}


/* Devices Mockup */

.devices-mockup {
    position: relative;
    height: 400px;
}

.device-laptop {
    position: absolute;
    top: 0;
    left: 0;
    width: 350px;
    z-index: 1;
}

.laptop-screen {
    width: 100%;
    height: 220px;
    background: white;
    border-radius: 8px 8px 0 0;
    padding: 1rem;
    box-shadow: var(--shadow-xl);
}

.laptop-screen::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 400px;
    height: 15px;
    background: #e2e8f0;
    border-radius: 0 0 8px 8px;
}

.mini-chat-interface {
    display: flex;
    gap: 0.5rem;
    height: 100%;
}

.mini-sidebar {
    width: 80px;
    background: var(--bg-light);
    border-radius: 4px;
}

.mini-content {
    flex: 1;
    background: white;
    border: 2px solid var(--border-color);
    border-radius: 4px;
}

.device-phone {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 140px;
    height: 280px;
    background: #1a202c;
    border-radius: 20px;
    padding: 8px;
    box-shadow: var(--shadow-xl);
    z-index: 2;
}

.phone-screen-mini {
    width: 100%;
    height: 100%;
    background: white;
    border-radius: 16px;
}


/* Footer */

.footer {
    background: #1a202c;
    color: white;
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1.5fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.footer-logo img {
    object-fit: contain;
    max-height: 75px;
}

.footer-description {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: var(--primary-color);
    transform: translateY(-4px);
}

.footer-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: white;
}

.footer-contact {
    list-style: none;
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 1rem;
    color: rgba(255, 255, 255, 0.7);
}

.footer-contact i {
    margin-top: 0.25rem;
    color: var(--primary-color);
}

.footer-contact a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-contact a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
}


/* Responsive Design */

@media (max-width: 968px) {
    .nav-links,
    .nav-content .btn {
        display: none;
    }
    .mobile-menu-btn {
        display: block;
    }
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero-title {
        font-size: 2.5rem;
    }
    .hero-buttons {
        justify-content: center;
        flex-wrap: wrap;
    }
    .hero-stats {
        justify-content: center;
    }
    .hero-image {
        order: -1;
    }
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .screenshots-carousel {
        grid-template-columns: 1fr;
    }
    .benefits-grid {
        grid-template-columns: 1fr;
    }
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    .download-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .download-buttons {
        justify-content: center;
    }
    .signup-form {
        margin: 0 auto;
    }
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }
    .about-content {
        width: 90%;
    }
    .privacy-content {
        width: 90%;
    }
}

@media (max-width: 640px) {
    .hero-title {
        font-size: 2rem;
    }
    .section-title {
        font-size: 2rem;
    }
    .features-grid {
        grid-template-columns: 1fr;
    }
    .hero-stats {
        flex-direction: column;
        gap: 1.5rem;
    }
    .phone-frame {
        width: 240px;
        height: 480px;
    }
    .signup-form {
        flex-direction: column;
    }
    .store-btn {
        width: 100%;
        justify-content: center;
    }
    .footer-content {
        grid-template-columns: 1fr;
    }
    .floating-element {
        width: 45px;
        height: 45px;
        font-size: 1.2rem;
    }
    .chat-message-preview {
        width: 75px;
    }
    .devices-mockup {
        display: none;
    }
    .about-content {
        width: 100%;
    }
    .privacy-content {
        width: 100%;
    }
}


/* Animations */

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

.feature-card,
.benefit-item,
.testimonial-card {
    animation: fadeInUp 0.6s ease-out;
}