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

:root {
    --primary: #0ea5e9;
    --primary-dark: #0284c7;
    --secondary: #0369a1;
    --accent: #38bdf8;
    --text-dark: #1a1a1a;
    --text-gray: #6b7280;
    --bg-white: #ffffff;
    --bg-gray: #f9fafb;
    --bg-light: #f3f4f6;
    --border: #e5e7eb;
    --shadow: rgba(0, 0, 0, 0.1);
    --shadow-lg: rgba(0, 0, 0, 0.15);
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    padding: 16px 0;
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 24px;
    color: var(--text-dark);
}

.brand-text {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 24px;
    flex-shrink: 0;
}

.nav-link {
    text-decoration: none;
    color: var(--text-gray);
    font-weight: 500;
    font-size: 15px;
    transition: color 0.3s;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
}

/* Buttons */
.btn-primary, .btn-secondary, .btn-large {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(14, 165, 233, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--text-dark);
    border: 2px solid var(--border);
}

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

.btn-large {
    padding: 16px 36px;
    font-size: 16px;
    white-space: nowrap;
}

/* CTA Button Animations */
@keyframes pulse-scale {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes slide-shine {
    0% { left: -100%; }
    50%, 100% { left: 100%; }
}

.btn-cta-animate {
    position: relative;
    overflow: hidden;
    animation: pulse-scale 2.5s ease-in-out infinite;
}

.btn-cta-animate::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.25), transparent);
    animation: slide-shine 3s ease-in-out infinite;
}

.btn-cta-animate:hover {
    animation: none;
    transform: translateY(-2px) scale(1.03);
    box-shadow: 0 8px 24px rgba(14, 165, 233, 0.35);
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    margin-top: 72px;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.badge {
    display: inline-block;
    padding: 8px 16px;
    background: white;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 24px;
    box-shadow: 0 2px 8px var(--shadow);
}

.hero-title {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    color: var(--text-dark);
}

.hero-description {
    font-size: 20px;
    color: var(--text-gray);
    margin-bottom: 32px;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: 48px;
}

.stat-item {
    text-align: left;
}

.stat-number {
    font-size: 36px;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 4px;
}

.stat-label {
    font-size: 14px;
    color: var(--text-gray);
}

/* Phone Mockup */
.phone-mockup {
    position: relative;
    width: 300px;
    max-width: 100%;
    height: 600px;
    background: #1a1a1a;
    border-radius: 40px;
    padding: 12px;
    box-shadow: 0 30px 60px var(--shadow-lg);
    margin: 0 auto;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, #ECE5DD 0%, #ECE5DD 100%);
    border-radius: 32px;
    padding: 20px;
    overflow: hidden;
}

.chat-bubble {
    max-width: 70%;
    padding: 12px 16px;
    border-radius: 12px;
    margin-bottom: 12px;
    position: relative;
    animation: slideIn 0.5s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.chat-bubble.incoming {
    background: white;
    float: left;
    clear: both;
}

.chat-bubble.outgoing {
    background: #D9FDD3;
    float: right;
    clear: both;
}

.chat-bubble p {
    margin: 0;
    font-size: 14px;
    line-height: 1.5;
}

.chat-bubble .time {
    font-size: 11px;
    color: #667781;
    float: right;
    margin-top: 4px;
}

/* Features Section */
.features {
    padding: 100px 0;
    background: var(--bg-white);
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-badge {
    display: inline-block;
    padding: 6px 16px;
    background: var(--bg-light);
    color: var(--primary);
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 16px;
}

.section-title {
    font-size: 42px;
    font-weight: 800;
    margin-bottom: 16px;
    color: var(--text-dark);
}

.section-description {
    font-size: 18px;
    color: var(--text-gray);
    max-width: 600px;
    margin: 0 auto;
}

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

.feature-card {
    background: var(--bg-white);
    padding: 32px;
    border-radius: 16px;
    border: 1px solid var(--border);
    transition: all 0.3s;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px var(--shadow-lg);
    border-color: var(--primary);
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    margin-bottom: 24px;
}

.feature-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.feature-description {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.7;
}

/* How It Works */
.how-it-works {
    padding: 100px 0;
    background: var(--bg-gray);
}

.steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
    margin-top: 64px;
}

.step {
    position: relative;
}

.step::after {
    content: '→';
    position: absolute;
    right: -48px;
    top: 20px;
    font-size: 32px;
    color: var(--primary);
    opacity: 0.3;
}

.step:last-child::after {
    display: none;
}

.step-number {
    font-size: 72px;
    font-weight: 800;
    color: var(--primary);
    opacity: 0.2;
    line-height: 1;
    margin-bottom: 16px;
}

.step-content h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.step-content p {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.7;
}

/* Pricing Section */
.pricing {
    padding: 100px 0;
    background: var(--bg-white);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin-top: 64px;
}

.pricing-card {
    background: var(--bg-white);
    border: 2px solid var(--border);
    border-radius: 20px;
    padding: 40px;
    position: relative;
    transition: all 0.3s;
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px var(--shadow-lg);
}

.pricing-card.featured {
    border-color: var(--primary);
    box-shadow: 0 20px 40px rgba(14, 165, 233, 0.2);
}

.popular-badge {
    position: absolute;
    top: -16px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: white;
    padding: 6px 20px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
}

.pricing-header {
    text-align: center;
    margin-bottom: 32px;
}

.plan-name {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-dark);
}

.plan-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 4px;
}

.currency {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-gray);
}

.amount {
    font-size: 56px;
    font-weight: 800;
    color: var(--text-dark);
}

.period {
    font-size: 16px;
    color: var(--text-gray);
}

.plan-features {
    list-style: none;
    margin-bottom: 32px;
}

.plan-features li {
    padding: 12px 0;
    font-size: 15px;
    color: var(--text-gray);
    border-bottom: 1px solid var(--bg-light);
}

.plan-features li:last-child {
    border-bottom: none;
}

.btn-plan {
    display: block;
    width: 100%;
    padding: 16px;
    text-align: center;
    background: var(--bg-light);
    color: var(--text-dark);
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
}

.btn-plan:hover {
    background: var(--bg-gray);
}

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

.btn-plan.primary:hover {
    background: var(--primary-dark);
}

/* FAQ Section */
.faq {
    padding: 100px 0;
    background: var(--bg-gray);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    padding: 32px;
    border-radius: 16px;
    margin-bottom: 20px;
    border: 1px solid var(--border);
}

.faq-question {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-dark);
}

.faq-answer {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.7;
}

/* CTA Section */
.cta {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    text-align: center;
}

.cta-title {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 16px;
}

.cta-description {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.9;
}

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

.cta .btn-primary:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.2);
}

.cta-note {
    margin-top: 24px;
    font-size: 14px;
    opacity: 0.8;
}

/* Footer */
.footer {
    background: var(--text-dark);
    color: white;
    padding: 80px 0 32px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.footer-description {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 24px;
    line-height: 1.7;
}

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

.social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: all 0.3s;
}

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

.footer-title {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 20px;
}

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

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 15px;
    transition: color 0.3s;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
    margin-bottom: 8px;
}

.footer-note {
    color: rgba(255, 255, 255, 0.7) !important;
}

/* Hamburger Button */
.hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 10000;
    position: relative;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-dark);
    margin: 6px 0;
    transition: all 0.3s;
    border-radius: 2px;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 6px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
}

/* Responsive - Tablet */
@media (max-width: 968px) {
    .hamburger {
        display: block;
    }

    .nav-links {
        display: none !important;
        position: absolute !important;
        top: 100% !important;
        left: 0 !important;
        right: 0 !important;
        background: #ffffff !important;
        flex-direction: column !important;
        align-items: stretch !important;
        gap: 0 !important;
        z-index: 9999 !important;
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12) !important;
        border-top: 1px solid var(--border);
        padding: 8px 0 !important;
    }

    .nav-links.open {
        display: flex !important;
    }

    .nav-links .nav-link {
        font-size: 15px;
        padding: 12px 24px;
        border-bottom: 1px solid #f1f5f9;
        width: 100%;
        text-align: left;
    }

    .nav-links .nav-link:last-of-type {
        border-bottom: none;
    }

    .nav-links .nav-cta {
        margin: 12px 24px;
        padding: 12px 24px;
        font-size: 15px;
        text-align: center;
        border-radius: 8px;
    }

    .hero {
        padding: 80px 0 60px;
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-description {
        font-size: 17px;
    }

    .hero-buttons {
        justify-content: center;
        flex-wrap: wrap;
    }

    .hero-stats {
        justify-content: center;
        gap: 32px;
    }

    .stat-number {
        font-size: 28px;
    }

    .section-title {
        font-size: 30px;
    }

    .section-description {
        font-size: 16px;
    }

    .features {
        padding: 60px 0;
    }

    .features-grid {
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }

    .feature-card {
        padding: 24px;
    }

    .how-it-works {
        padding: 60px 0;
    }

    .steps {
        grid-template-columns: 1fr;
        gap: 32px;
        margin-top: 40px;
    }

    .step::after {
        display: none;
    }

    .step-number {
        font-size: 48px;
    }

    .pricing {
        padding: 60px 0;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 480px;
        margin-left: auto;
        margin-right: auto;
    }

    .pricing-card {
        padding: 32px;
    }

    .amount {
        font-size: 40px;
    }

    .faq {
        padding: 60px 0;
    }

    .faq-item {
        padding: 24px;
    }

    .faq-question {
        font-size: 18px;
    }

    .cta {
        padding: 60px 0;
    }

    .cta-title {
        font-size: 32px;
    }

    .cta-description {
        font-size: 17px;
    }

    .footer {
        padding: 60px 0 24px;
    }

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

    .footer-content .footer-section:first-child {
        grid-column: 1 / -1;
    }
}

/* Responsive - Mobile */
@media (max-width: 640px) {
    .container {
        padding: 0 16px;
    }

    .navbar {
        padding: 12px 0;
    }

    .nav-brand svg {
        width: 32px;
        height: 32px;
    }

    .nav-brand .brand-text {
        font-size: 20px;
    }

    .hero {
        padding: 60px 0 40px;
    }

    .hero-title {
        font-size: 26px;
        line-height: 1.2;
    }

    .hero-description {
        font-size: 14px;
        margin-bottom: 24px;
        line-height: 1.6;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }

    .hero-buttons a {
        width: 100%;
        text-align: center;
        padding: 14px 20px;
        font-size: 15px;
    }

    .hero-buttons .btn-large {
        white-space: normal;
    }

    .hero-stats {
        gap: 16px;
    }

    .stat-item {
        text-align: center;
    }

    .stat-number {
        font-size: 20px;
    }

    .stat-label {
        font-size: 11px;
    }

    .hero-image {
        display: none;
    }

    .badge {
        font-size: 12px;
        padding: 6px 12px;
        margin-bottom: 16px;
    }

    .section-header {
        margin-bottom: 28px;
    }

    .section-title {
        font-size: 22px;
        line-height: 1.3;
    }

    .section-description {
        font-size: 14px;
    }

    .features {
        padding: 48px 0;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .feature-card {
        padding: 20px;
    }

    .feature-icon {
        width: 48px;
        height: 48px;
        border-radius: 12px;
        margin-bottom: 16px;
    }

    .feature-icon svg {
        width: 28px;
        height: 28px;
    }

    .feature-title {
        font-size: 16px;
    }

    .feature-description {
        font-size: 13px;
    }

    .how-it-works {
        padding: 48px 0;
    }

    .steps {
        gap: 24px;
        margin-top: 28px;
    }

    .step-number {
        font-size: 36px;
        margin-bottom: 8px;
    }

    .step-content h3 {
        font-size: 18px;
    }

    .step-content p {
        font-size: 13px;
    }

    .pricing {
        padding: 48px 0;
    }

    .pricing-grid {
        gap: 20px;
        margin-top: 28px;
        max-width: 100%;
    }

    .pricing-card {
        padding: 24px 20px;
    }

    .plan-name {
        font-size: 20px;
        margin-bottom: 12px;
    }

    .amount {
        font-size: 28px;
    }

    .currency {
        font-size: 16px;
    }

    .plan-features {
        margin-bottom: 24px;
    }

    .plan-features li {
        font-size: 13px;
        padding: 8px 0;
    }

    .btn-plan {
        padding: 14px;
        font-size: 14px;
    }

    .faq {
        padding: 48px 0;
    }

    .faq-item {
        padding: 20px;
        margin-bottom: 12px;
    }

    .faq-question {
        font-size: 15px;
        margin-bottom: 10px;
    }

    .faq-answer {
        font-size: 13px;
    }

    .cta {
        padding: 48px 0;
    }

    .cta-title {
        font-size: 22px;
        line-height: 1.3;
    }

    .cta-description {
        font-size: 14px;
        margin-bottom: 24px;
    }

    .cta .btn-large {
        width: 100%;
        text-align: center;
        white-space: normal;
        padding: 14px 20px;
    }

    .cta-note {
        font-size: 12px;
    }

    .footer {
        padding: 48px 0 20px;
    }

    .footer-content {
        grid-template-columns: repeat(3, 1fr);
        gap: 16px;
    }

    .footer-content .footer-section:first-child {
        grid-column: 1 / -1;
    }

    .footer-title {
        font-size: 14px;
        margin-bottom: 12px;
    }

    .footer-links a {
        font-size: 13px;
    }

    .footer-bottom p {
        font-size: 11px;
    }
}