:root {
    --primary: #4F7CFF;
    --primary-dark: #3A63E0;
    --bg: #ffffff;
    --bg-light: #f8f9fa;
    --text-main: #1a1a1a;
    --text-muted: #666666;
    --border: #e5e5e5;
}

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

html {
    scroll-behavior: smooth;
}

html:not(:focus-within) {
    scroll-behavior: auto;
}

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

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    padding: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    transition: opacity 0.2s ease;
}

.nav-logo:hover {
    opacity: 0.8;
}

.logo {
    width: 36px;
    height: 36px;
}

.logo-text {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-main);
}

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

.nav-links a {
    color: var(--text-main);
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    transition: color 0.2s ease;
}

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

.nav-cta {
    display: flex;
}

.nav-download-btn {
    background: var(--primary);
    color: white;
    padding: 10px 24px;
    border-radius: 24px;
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    transition: all 0.2s ease;
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-main);
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    background: var(--primary);
    padding: 140px 0 120px;
    position: relative;
    overflow: hidden;
}

.hero-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    color: white;
}

.hero-title {
    font-size: 56px;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 24px;
    color: white;
}

.hero-description {
    font-size: 20px;
    line-height: 1.6;
    margin-bottom: 40px;
    color: rgba(255, 255, 255, 0.95);
    max-width: 500px;
}

.hero-cta {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.join-waitlist-btn {
    background: white;
    color: var(--primary);
    padding: 16px 40px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    font-size: 18px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.join-waitlist-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.store-btn {
    display: block;
    transition: transform 0.2s ease;
    flex-shrink: 0;
}

.store-btn:hover {
    transform: translateY(-3px);
}

/* App Store badge - standard height 40px */
.store-btn:first-child {
    height: 60px;
    width: auto;
}

.store-btn:first-child img {
    height: 60px;
    width: auto;
}

/* Google Play badge - adjust to match App Store height */
.store-btn:last-child {
    height: 60px;
    width: auto;
}

.store-btn:last-child img {
    height: 60px;
    width: auto;
    margin-top: 0;
}

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

.hero-phones {
    width: 100%;
    max-width: 500px;
    height: auto;
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.2));
    animation: floatImage 3s ease-in-out infinite;
}

@keyframes floatImage {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

.hero-phone {
    width: 100%;
    max-width: 500px;
    height: auto;
    border-radius: 20px;
}

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

.how-it-works .section-title {
    text-align: center;
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 80px;
    color: var(--text-main);
}

/* AI Flow */
.ai-flow {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    margin-bottom: 80px;
    flex-wrap: nowrap;
}

.flow-step {
    flex: 1;
    max-width: 280px;
    text-align: center;
}

.flow-illustration {
    margin-bottom: 24px;
}

.illustration-placeholder {
    width: 120px;
    height: 120px;
    margin: 0 auto;
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(79, 124, 255, 0.1), rgba(79, 124, 255, 0.05));
    border: 2px solid rgba(79, 124, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.illustration-placeholder::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(79, 124, 255, 0.15) 0%, transparent 70%);
}

.illustration-placeholder.upload::after {
    content: '📄';
    font-size: 40px;
    position: relative;
    z-index: 1;
}

.illustration-placeholder.ai::after {
    content: '⚡';
    font-size: 40px;
    position: relative;
    z-index: 1;
}

.illustration-placeholder.shared::after {
    content: '📅';
    font-size: 40px;
    position: relative;
    z-index: 1;
}

.illustration-placeholder.payments::after {
    content: '💳';
    font-size: 32px;
    position: relative;
    z-index: 1;
}

.flow-step h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-main);
}

.flow-step p {
    font-size: 15px;
    line-height: 1.6;
    color: var(--text-muted);
}

.flow-arrow {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    margin: 0 8px;
}

.flow-arrow svg {
    display: block;
}

/* Secondary Feature */
.secondary-feature {
    max-width: 600px;
    margin: 0 auto;
}

.secondary-card {
    background: var(--bg-light);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 32px;
    display: flex;
    align-items: center;
    gap: 32px;
}

.secondary-illustration {
    flex-shrink: 0;
}

.secondary-illustration .illustration-placeholder {
    width: 80px;
    height: 80px;
}

.secondary-content h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-main);
}

.secondary-content p {
    font-size: 15px;
    line-height: 1.6;
    color: var(--text-muted);
    margin: 0;
}

/* Why Free Up Section */
.why-ibspal {
    padding: 80px 0;
    background: var(--bg-light);
}

.why-ibspal h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--text-main);
}

.section-description {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-muted);
    margin-bottom: 40px;
    max-width: 800px;
}

.feature-integration-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-main);
}

.feature-list {
    list-style: none;
    margin-bottom: 40px;
}

.feature-list li {
    font-size: 15px;
    line-height: 2;
    color: var(--text-muted);
}

.why-image {
    text-align: center;
    margin-top: 40px;
}

.why-image img {
    max-width: 400px;
    width: 100%;
    height: auto;
    border-radius: 20px;
}

/* Progress Tracking Section */
.progress-tracking {
    padding: 80px 0;
    background: var(--bg);
}

.progress-tracking h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--text-main);
}

.progress-image {
    text-align: center;
    margin-top: 40px;
}

.progress-video {
    max-width: 250px;
    width: 100%;
    height: auto;
    border-radius: 20px;
}

/* Stats Section */
.stats-section {
    padding: 60px 0;
    background: var(--bg-light);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    text-align: center;
}

.stat-item {
    padding: 20px;
}

.stat-number {
    display: block;
    font-size: 48px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 8px;
}

.stat-label {
    display: block;
    font-size: 14px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Testimonials */
.testimonials {
    padding: 80px 0;
    background: var(--bg);
}

.testimonials h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-main);
    text-align: center;
}

.testimonials .section-description {
    text-align: center;
    margin: 0 auto 60px;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.testimonial-card {
    background: var(--bg-light);
    padding: 32px;
    border-radius: 12px;
    border: 1px solid var(--border);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.testimonial-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
}

.testimonial-card h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-main);
}

.testimonial-card p {
    font-size: 15px;
    line-height: 1.7;
    color: var(--text-muted);
    margin-bottom: 16px;
    font-style: italic;
}

.testimonial-author {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-main);
}

/* Final CTA */
.final-cta {
    padding: 80px 0;
    background: var(--bg-light);
    text-align: center;
}

.final-cta h2 {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-main);
}

.cta-description {
    font-size: 18px;
    color: var(--text-muted);
    margin-bottom: 40px;
}

/* Waitlist Form */
.waitlist-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    display: flex;
    gap: 12px;
    margin-bottom: 12px;
}

.email-input {
    flex: 1;
    padding: 16px 24px;
    border: 2px solid var(--border);
    border-radius: 30px;
    font-size: 16px;
    font-family: inherit;
    transition: all 0.3s ease;
    background: white;
}

.email-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(79, 124, 255, 0.1);
}

.submit-btn {
    padding: 16px 40px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: inherit;
}

.submit-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(79, 124, 255, 0.3);
}

.form-note {
    font-size: 14px;
    color: var(--text-muted);
    margin-top: 12px;
}

.success-message {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    background: #D1FAE5;
    border: 1px solid #10B981;
    border-radius: 12px;
    padding: 16px 24px;
    margin-top: 20px;
    animation: slideDown 0.3s ease-out;
}

.success-message svg {
    flex-shrink: 0;
}

.success-message span {
    font-size: 15px;
    font-weight: 600;
    color: #065F46;
}

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

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    align-items: flex-start;
}

.download-btn {
    display: block;
    transition: transform 0.2s ease;
    flex-shrink: 0;
}

.download-btn:hover {
    transform: translateY(-3px);
}

/* App Store badge - standard height */
.download-btn:first-child {
    height: 70px;
    width: auto;
}

.download-btn:first-child img {
    height: 70px;
    width: auto;
}

/* Google Play badge - match App Store height */
.download-btn:last-child {
    height: 70px;
    width: auto;
}

.download-btn:last-child img {
    height: 70px;
    width: auto;
}

/* Footer */
.footer {
    background: var(--bg);
    padding: 60px 0 30px;
    border-top: 1px solid var(--border);
}

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

.footer-column h4 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-main);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.footer-column ul {
    list-style: none;
}

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

.footer-column ul li a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s ease;
}

.footer-column ul li a:hover {
    color: var(--primary);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.footer-tagline {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.footer-app-link {
    display: inline-block;
    transition: transform 0.2s ease;
}

.footer-app-link:hover {
    transform: translateY(-2px);
}

.footer-app-link img {
    height: 40px;
    width: auto;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--border);
}

.footer-bottom p {
    font-size: 13px;
    color: var(--text-muted);
}

/* Mobile Navigation */
.nav-links.active {
    display: flex !important;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--bg);
    flex-direction: column;
    padding: 24px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    z-index: 999;
}

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

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

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

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links,
    .nav-cta {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .hero {
        padding: 100px 0 60px;
    }

    .hero-container {
        grid-template-columns: 1fr;
        gap: 50px;
        text-align: center;
        padding: 0 24px;
    }

    .hero-title {
        font-size: 38px;
    }

    .hero-description {
        font-size: 17px;
        max-width: 100%;
    }

    .hero-cta {
        justify-content: center;
        flex-direction: row;
        flex-wrap: wrap;
    }

    .hero-visual {
        order: -1;
    }

    .hero-phones {
        max-width: 600px;
    }

    .hero-phone {
        max-width: 350px;
    }

    .store-btn:first-child,
    .store-btn:last-child {
        height: 54px;
    }

    .store-btn:first-child img,
    .store-btn:last-child img {
        height: 54px;
    }

    .download-btn:first-child,
    .download-btn:last-child {
        height: 60px;
    }

    .download-btn:first-child img,
    .download-btn:last-child img {
        height: 60px;
    }

    .how-it-works,
    .why-ibspal,
    .progress-tracking,
    .testimonials,
    .final-cta {
        padding: 60px 0;
    }

    .how-it-works .section-title {
        font-size: 28px;
        margin-bottom: 50px;
    }

    .ai-flow {
        flex-direction: column;
        gap: 32px;
    }

    .flow-arrow {
        transform: rotate(90deg);
    }

    .flow-step {
        max-width: 100%;
    }

    .secondary-card {
        flex-direction: column;
        text-align: center;
    }

    .why-ibspal h2,
    .progress-tracking h2,
    .testimonials h2 {
        font-size: 28px;
    }

    .stats-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

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

    .final-cta h2 {
        font-size: 32px;
    }

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

    .download-btn {
        width: 180px;
        height: 54px;
    }
    
    .how-it-works-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .form-group {
        flex-direction: column;
    }

    .email-input,
    .submit-btn {
        width: 100%;
    }

    .join-waitlist-btn {
        font-size: 16px;
        padding: 14px 32px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .nav-container {
        padding: 0 16px;
    }

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

    .hero-phone {
        max-width: 280px;
    }

    .stat-number {
        font-size: 36px;
    }

    .final-cta h2 {
        font-size: 28px;
    }
}

/* Smooth animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease-out;
}