:root {
    /* Primary Brand Colors */
    --primary-color: #2563eb;
    /* Royal Blue */
    --primary-dark: #1d4ed8;
    --primary-light: #eff6ff;

    /* Neutral / Text Colors */
    --secondary-color: #0f172a;
    /* Slate 900 - Headings */
    --text-color: #334155;
    /* Slate 700 - Body */
    --text-light: #64748b;
    /* Slate 500 - Subtitles */

    /* Backgrounds */
    --light-bg: #f8fafc;
    /* Slate 50 */
    --white: #ffffff;
    --glass-bg: rgba(255, 255, 255, 0.7);

    /* Functional Colors */
    --accent: #10b981;
    /* Emerald - Success */
    --danger: #ef4444;
    /* Red - Error/Attention */
    --warning-bg: #fff7ed;
    --warning-text: #c2410c;

    /* Effects */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --radius: 12px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
}

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

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

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

/* Navbar */
/* Navbar */
.navbar {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    height: 80px;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
    border-bottom: 1px solid rgba(255, 255, 255, 0.5);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-color);
    letter-spacing: -0.02em;
}

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

.nav-link {
    font-weight: 500;
    color: var(--text-color);
    transition: var(--transition);
    font-size: 0.95rem;
}

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

.btn-login {
    background-color: var(--primary-light);
    color: var(--primary-color);
    padding: 10px 24px;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
}

.btn-login:hover {
    background-color: var(--primary-color);
    color: var(--white);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.menu-toggle {
    display: none;
    cursor: pointer;
    padding: 10px;
}

.bar {
    display: block;
    width: 24px;
    height: 2px;
    margin: 6px auto;
    background-color: var(--secondary-color);
    transition: var(--transition);
    border-radius: 2px;
}


/* Trust Bar */
.trust-bar {
    background-color: var(--white);
    padding: 24px 0 40px;
    border-bottom: 1px solid #f1f5f9;
}

.trust-bar .container {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.trust-bar p {
    text-align: left;
    color: var(--text-light);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding-left: 2px;
}

.trust-logos {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    gap: 40px;
    flex-wrap: wrap;
    opacity: 0.7;
}

.trust-logos i {
    font-size: 1.5rem;
    color: var(--text-light);
    transition: var(--transition);
}

.trust-logos i:hover {
    color: var(--primary-color);
    transform: scale(1.1);
    opacity: 1;
}

/* Hero Section */
.hero {
    padding-top: 140px;
    padding-bottom: 40px;
    background: radial-gradient(circle at top right, #f1f5f9 0%, #fff 50%, #eff6ff 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -10%;
    right: -5%;
    width: 50%;
    height: 50%;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, rgba(37, 99, 235, 0) 70%);
    border-radius: 50%;
    filter: blur(100px);
    z-index: 0;
}

.hero-content {
    display: flex;
    align-items: center;
    gap: 6rem;
    position: relative;
    z-index: 1;
}

.hero-text {
    flex: 1;
}

.alert-badge {
    display: inline-flex;
    align-items: center;
    background-color: var(--primary-light);
    color: var(--primary-color);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 24px;
    border: 1px solid rgba(37, 99, 235, 0.1);
    box-shadow: var(--shadow-sm);
}

.hero-text h1 {
    font-size: 3.75rem;
    line-height: 1.1;
    color: var(--secondary-color);
    margin-bottom: 24px;
    font-weight: 800;
    letter-spacing: -0.03em;
}

.highlight {
    color: var(--primary-color);
    position: relative;
    white-space: nowrap;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: 5px;
    left: 0;
    width: 100%;
    height: 12px;
    background-color: rgba(37, 99, 235, 0.15);
    z-index: -1;
    transform: rotate(-1deg);
}

.hero-sub {
    font-size: 1.25rem;
    margin-bottom: 40px;
    color: var(--text-light);
    max-width: 500px;
    line-height: 1.7;
}

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

.btn {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    padding: 16px 32px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    cursor: pointer;
    text-align: center;
    border: none;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--white);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.4);
}

.btn-block {
    width: 100%;
}

.pulse {
    animation: pulse-animation 2s infinite;
}

@keyframes pulse-animation {
    0% {
        box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.4);
    }

    70% {
        box-shadow: 0 0 0 15px rgba(37, 99, 235, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(37, 99, 235, 0);
    }
}

.btn-outline {
    background-color: var(--white);
    color: var(--secondary-color);
    border: 1px solid #e2e8f0;
    box-shadow: var(--shadow-sm);
}

.btn-outline:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background-color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.security-badge {
    background-color: var(--white);
    padding: 8px 16px;
    border-radius: 50px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.875rem;
    color: var(--text-light);
    box-shadow: var(--shadow-sm);
    border: 1px solid #f1f5f9;
}

.hero-image {
    flex: 1;
    position: relative;
    perspective: 1000px;
}

.glass-card {
    width: 100%;
    border-radius: 20px;
    box-shadow: var(--shadow-xl);
    border: 1px solid rgba(255, 255, 255, 0.5);
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    transform: rotateY(-5deg) rotateX(2deg);
    transition: var(--transition);
}

.glass-card:hover {
    transform: rotateY(0) rotateX(0) scale(1.02);
}

/* Problems Section */
.section-padding {
    padding: 100px 0;
}

/* Problems Section */
.section-padding {
    padding: 120px 0;
}

.problems-section {
    background-color: var(--light-bg);
    position: relative;
    z-index: 2;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 80px;
}

.section-header h2 {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 20px;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.section-header p {
    font-size: 1.125rem;
    color: var(--text-light);
    line-height: 1.6;
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
}

.problem-card {
    background-color: var(--white);
    padding: 40px;
    border-radius: 20px;
    border: 1px solid #f1f5f9;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    text-align: left;
}

.problem-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(239, 68, 68, 0.2);
}

.problem-card i {
    font-size: 2rem;
    color: var(--danger);
    margin-bottom: 24px;
    display: inline-flex;
    padding: 12px;
    background-color: #fef2f2;
    border-radius: 12px;
}

.problem-card h3 {
    font-size: 1.25rem;
    margin-bottom: 16px;
    color: var(--secondary-color);
    font-weight: 700;
}

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

/* Features */
/* Features */
.feature-row {
    display: flex;
    align-items: center;
    gap: 80px;
    margin-bottom: 140px;
}

.feature-row.reverse {
    flex-direction: row-reverse;
}

.feature-text {
    flex: 1;
}

.feature-icon {
    width: 64px;
    height: 64px;
    background-color: var(--primary-light);
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 16px;
    font-size: 1.75rem;
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
}

.feature-text h3 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: var(--secondary-color);
    font-weight: 800;
    letter-spacing: -0.02em;
}

.feature-text p {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: 30px;
    line-height: 1.7;
}

.feature-benefits li {
    margin-bottom: 16px;
    color: var(--text-color);
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 500;
}

.feature-benefits i {
    color: var(--accent);
    background: #ecfdf5;
    padding: 4px;
    border-radius: 50%;
    font-size: 0.8rem;
}

.feature-img {
    flex: 1;
    perspective: 1000px;
}

.feature-img img {
    width: 100%;
    border-radius: 24px;
    box-shadow: var(--shadow-xl);
    transition: var(--transition);
    cursor: zoom-in;
    border: 1px solid rgba(0, 0, 0, 0.05);
    background: var(--white);
    transform: rotateY(5deg) scale(0.95);
}

.feature-row.reverse .feature-img img {
    transform: rotateY(-5deg) scale(0.95);
}

.feature-img img:hover {
    transform: rotateY(0) scale(1);
}

/* Demo Section */
.demo-section {
    background-color: var(--light-bg);
}

.demo-card {
    background: radial-gradient(circle at top right, var(--secondary-color), #1e293b);
    border-radius: 30px;
    padding: 80px;
    color: var(--white);
    display: flex;
    align-items: center;
    gap: 80px;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.demo-content {
    flex: 1;
}

.demo-content h2 {
    font-size: 2.5rem;
    margin-bottom: 24px;
    font-weight: 800;
}

.demo-content p {
    color: #94a3b8;
    margin-bottom: 40px;
    font-size: 1.125rem;
    line-height: 1.7;
}

.benefits-list li {
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 1.125rem;
    color: #e2e8f0;
}

.benefits-list i {
    color: var(--accent);
    background: rgba(16, 185, 129, 0.2);
    padding: 8px;
    border-radius: 50%;
    font-size: 0.9rem;
}

.demo-image {
    flex: 1;
}

.demo-image img {
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Early Access / Form */
/* Early Access / Form */
.early-access-section {
    background: radial-gradient(circle at bottom left, var(--primary-dark) 0%, var(--primary-color) 100%);
    color: var(--white);
    position: relative;
    padding: 120px 0;
}

.form-box {
    background-color: var(--white);
    padding: 60px;
    border-radius: 30px;
    max-width: 540px;
    margin: 0 auto;
    color: var(--secondary-color);
    box-shadow: var(--shadow-xl);
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.form-box h2 {
    font-size: 2.25rem;
    margin-bottom: 16px;
    color: var(--secondary-color);
    font-weight: 800;
    letter-spacing: -0.02em;
}

.form-box p {
    color: var(--text-light);
    margin-bottom: 40px;
    line-height: 1.6;
}

.form-group {
    margin-bottom: 24px;
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--secondary-color);
}

.form-group input {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 1rem;
    transition: var(--transition);
    background-color: #f8fafc;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    background-color: var(--white);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

.privacy-text {
    margin-top: 24px;
    font-size: 0.85rem !important;
    opacity: 0.8;
    background: #f1f5f9;
    padding: 10px;
    border-radius: 8px;
}

/* Footer */
footer {
    background-color: var(--secondary-color);
    color: #94a3b8;
    padding: 60px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

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

.socials {
    display: flex;
    gap: 16px;
}

.socials a {
    font-size: 1rem;
    transition: var(--transition);
    background: rgba(255, 255, 255, 0.05);
    padding: 10px 20px;
    border-radius: 50px;
    color: var(--white);
    border: 1px solid transparent;
    display: flex;
    align-items: center;
    gap: 8px;
}

.socials a:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    z-index: 2000;
    padding-top: 50px;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(15, 23, 42, 0.95);
    /* darker backdrop */
    backdrop-filter: blur(10px);
    animation: fadeIn 0.3s;
}

.lightbox-content {
    margin: auto;
    display: block;
    width: 80%;
    max-width: 1200px;
    max-height: 80vh;
    object-fit: contain;
    border-radius: 12px;
    box-shadow: var(--shadow-2xl);
}

.close-lightbox {
    position: absolute;
    top: 30px;
    right: 40px;
    color: #fff;
    font-size: 40px;
    font-weight: 300;
    transition: 0.3s;
    cursor: pointer;
    line-height: 1;
}

.close-lightbox:hover {
    color: var(--primary-color);
}

@keyframes fadeIn {
    from {
        opacity: 0
    }

    to {
        opacity: 1
    }
}

/* Testimonials */
.testimonials-section {
    background-color: var(--light-bg);
}

.testimonials-slider {
    width: 100%;
    overflow: hidden;
    padding: 20px 0 40px;
    position: relative;
    /* fade effect on sides */
    mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
    -webkit-mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
}

.slider-track {
    display: flex;
    gap: 30px;
    width: max-content;
    animation: scroll 40s linear infinite;
    padding: 0 20px;
    cursor: grab;
}

.slider-track:hover {
    animation-play-state: paused;
}

@keyframes scroll {
    0% {
        transform: translateX(0);
    }

    100% {
        transform: translateX(calc(-350px * 3 - 90px));
        /* 3 cards + 3 gaps = 1140px */
    }
}

.testimonial-card {
    background-color: var(--white);
    padding: 30px;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.05);
    width: 350px;
    flex-shrink: 0;
}



.avatar-wrapper {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid var(--primary-light);
    background: #e2e8f0;
}

.avatar-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.quote {
    font-size: 1rem;
    font-style: italic;
    color: var(--text-color);
    margin-bottom: 20px;
    line-height: 1.6;
}

.author-info h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 4px;
}

.author-info span {
    font-size: 0.9rem;
    color: var(--text-light);
}

/* Responsive */
@media (max-width: 992px) {
    .container {
        padding: 0 24px;
    }

    .hero-content {
        flex-direction: column;
        text-align: center;
        padding-top: 40px;
        gap: 60px;
    }

    .hero-text h1 {
        font-size: 3rem;
    }

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

    .trust-bar p {
        text-align: center;
        width: 100%;
    }

    .trust-bar .container,
    .trust-logos {
        align-items: center;
        justify-content: center;
    }

    .feature-row,
    .feature-row.reverse {
        flex-direction: column;
        gap: 40px;
        text-align: center;
    }

    .feature-text h3 {
        margin-top: 24px;
    }

    .feature-icon {
        margin: 0 auto 24px;
    }

    .feature-img img,
    .feature-row.reverse .feature-img img,
    .feature-img img:hover {
        transform: none;
        /* remove 3D effect on tablet/mobile for performance */
    }

    .feature-benefits li {
        justify-content: center;
    }

    .demo-card {
        flex-direction: column;
        padding: 40px;
        text-align: center;
        gap: 40px;
    }

    .benefits-list li {
        justify-content: center;
    }

    .form-box {
        padding: 40px 24px;
    }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 80px;
        flex-direction: column;
        background-color: var(--white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 10px rgba(0, 0, 0, 0.1);
        padding: 20px 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu li {
        margin: 15px 0;
    }

    .hero-text h1 {
        font-size: 2.2rem;
    }

    .btn {
        width: 100%;
        display: block;
        margin-bottom: 10px;
    }

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

    /* Mobile Slider Optimization */
    .testimonial-card {
        width: 280px;
        padding: 20px;
    }

    @keyframes scroll {
        0% {
            transform: translateX(0);
        }

        100% {
            transform: translateX(calc(-280px * 3 - 90px));
        }
    }
}

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

    /* Adaptive Typography - Smaller for Mobile */
    .hero-text h1 {
        font-size: clamp(1.4rem, 5vw + 0.5rem, 1.8rem);
    }

    .hero-sub {
        font-size: clamp(0.85rem, 3.5vw, 1rem);
    }

    .section-header h2 {
        font-size: clamp(1.4rem, 5vw, 1.7rem);
    }

    .section-header p {
        font-size: 0.9rem;
    }

    /* Adaptive Layout */
    .hero-content {
        gap: 40px;
        padding-top: 20px;
    }

    .section-padding {
        padding: 60px 0;
    }

    .trust-bar {
        padding: 20px 0;
    }

    .trust-logos {
        gap: 15px;
    }

    .trust-logos i {
        font-size: 1.1rem;
    }

    .security-badge {
        flex-direction: column;
        gap: 4px;
        text-align: center;
        padding: 6px 10px;
        font-size: 0.75rem;
        height: auto;
    }

    /* Form & Cards Responsive */
    .form-box,
    .demo-card,
    .problem-card,
    .testimonial-card,
    .feature-text {
        padding: 20px;
    }

    .feature-text h3,
    .problem-card h3 {
        font-size: 1.3rem;
    }

    .form-box h2 {
        font-size: clamp(1.3rem, 5vw, 1.6rem);
    }

    .btn {
        padding: 12px 20px;
        font-size: 0.9rem;
    }
}