@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Plus+Jakarta+Sans:wght@600;700&display=swap');

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

:root {
    --primary: #00d4ff;
    --primary-dark: #00a8cc;
    --secondary: #6b3ff0;
    --secondary-light: #8b5cf6;
    --bg-dark: #0f1419;
    --bg-darker: #0a0e17;
    --text-primary: #ffffff;
    --text-secondary: #a8b2c1;
    --text-tertiary: #6b7280;
    --border: #1f2937;
    --success: #10b981;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background: linear-gradient(135deg, #0f1419 0%, #1a1f2e 50%, #0f1419 100%);
    background-attachment: fixed;
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
    background: var(--secondary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-light);
}

/* Header & Navigation */
header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(15, 20, 25, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 2px solid var(--border);
    padding: 1.8rem 2rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

nav {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--primary);
    text-decoration: none;
    letter-spacing: 3px;
    text-transform: uppercase;
    transition: all 0.3s ease;
    text-shadow: 0 0 30px rgba(0, 212, 255, 0.4);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo:hover {
    text-shadow: 0 0 30px rgba(0, 212, 255, 0.5);
    transform: scale(1.02);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2.5rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 1rem;
    font-weight: 600;
    position: relative;
    transition: color 0.3s ease;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width 0.3s ease;
}

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

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

.btn-login {
    background: var(--text-primary);
    color: var(--bg-dark);
    padding: 0.85rem 2rem;
    border-radius: 0.7rem;
    text-decoration: none;
    border: none;
    cursor: pointer;
    font-weight: 700;
    font-size: 1rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.2);
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(255, 255, 255, 0.15);
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    background: none;
    border: none;
    padding: 0;
}

.hamburger span {
    width: 28px;
    height: 3.5px;
    background: var(--primary);
    border-radius: 2px;
    transition: all 0.3s ease;
    display: block;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

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

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Hero Section */
.hero {
    min-height: 85vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 6rem 2rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -15%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 8s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -20%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(107, 63, 240, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 10s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(40px); }
}

.hero h1 {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: clamp(2.5rem, 8vw, 4rem);
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    position: relative;
    z-index: 1;
    letter-spacing: -1px;
}

.hero h1 .highlight {
    color: var(--primary);
}

.hero p {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    max-width: 650px;
    position: relative;
    z-index: 1;
    line-height: 1.8;
    font-weight: 400;
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin: 2rem 0 3.5rem;
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
}

.feature-badge {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.95rem;
    padding: 0.8rem 1.6rem;
    border-radius: 0.8rem;
    border: 1px solid rgba(0, 212, 255, 0.3);
    background: rgba(0, 212, 255, 0.05);
    transition: all 0.3s ease;
}

.feature-badge:hover {
    background: rgba(0, 212, 255, 0.1);
    border-color: var(--primary);
    transform: translateY(-2px);
}

.feature-badge::before {
    content: "✓";
    font-size: 1.1rem;
    font-weight: bold;
}

/* Buttons */
.btn {
    padding: 1rem 2.8rem;
    border-radius: 0.8rem;
    text-decoration: none;
    border: none;
    cursor: pointer;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    display: inline-block;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--text-primary);
    color: var(--bg-dark);
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.1);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(255, 255, 255, 0.15);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1.5px solid var(--text-secondary);
}

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

/* Sections */
section {
    padding: 5rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

section h2 {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: clamp(2rem, 5vw, 3.2rem);
    margin-bottom: 1rem;
    text-align: center;
    font-weight: 700;
    letter-spacing: -0.5px;
}

section h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.section-subtitle {
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 3.5rem;
    font-size: 1.05rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
    margin: 3rem 0;
}

.feature-card {
    background: rgba(31, 41, 55, 0.4);
    backdrop-filter: blur(10px);
    padding: 2.5rem;
    border-radius: 1rem;
    border: 1px solid var(--border);
    transition: all 0.3s ease;
    position: relative;
}

.feature-card:hover {
    border-color: var(--primary);
    transform: translateY(-6px);
    background: rgba(31, 41, 55, 0.6);
    box-shadow: 0 15px 40px rgba(0, 212, 255, 0.1);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    display: inline-block;
}

.feature-card h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 0.95rem;
}

/* Testimonials */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    margin: 3rem 0;
}

.testimonial-card {
    background: rgba(31, 41, 55, 0.4);
    backdrop-filter: blur(10px);
    padding: 2.5rem;
    border-radius: 1rem;
    border: 1px solid var(--border);
    border-left: 3px solid var(--primary);
    transition: all 0.3s ease;
}

.testimonial-card:hover {
    transform: translateY(-4px);
    background: rgba(31, 41, 55, 0.6);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.1);
}

.testimonial-text {
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 0.95rem;
}

.testimonial-author {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.3rem;
}

.testimonial-role {
    color: var(--text-tertiary);
    font-size: 0.85rem;
}

/* Pricing */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    margin: 3rem 0;
}

.pricing-card {
    background: rgba(31, 41, 55, 0.4);
    backdrop-filter: blur(10px);
    padding: 3rem;
    border-radius: 1rem;
    border: 1px solid var(--border);
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
}

.pricing-card:hover {
    border-color: var(--primary);
    transform: translateY(-8px);
    background: rgba(31, 41, 55, 0.6);
    box-shadow: 0 20px 50px rgba(0, 212, 255, 0.12);
}

.pricing-card.featured {
    border-color: var(--primary);
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.15);
    transform: scale(1.02);
}

.pricing-card.featured:hover {
    transform: scale(1.04) translateY(-8px);
}

.plan-name {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 1.6rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-weight: 700;
}

.plan-price {
    font-size: 2.8rem;
    color: var(--primary);
    margin: 1.5rem 0;
    font-weight: 700;
}

.plan-price .currency {
    font-size: 1.6rem;
}

.plan-price .period {
    font-size: 0.95rem;
    color: var(--text-tertiary);
}

.plan-description {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 0.95rem;
    line-height: 1.6;
}

.plan-features {
    list-style: none;
    margin: 2.5rem 0;
    text-align: left;
}

.plan-features li {
    padding: 1rem 0;
    border-bottom: 1px solid var(--border);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-size: 0.95rem;
}

.plan-features li::before {
    content: "✓";
    color: var(--success);
    font-weight: bold;
    font-size: 1.1rem;
    flex-shrink: 0;
}

/* FAQ */
.faq-container {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 1.5rem;
    border: 1px solid var(--border);
    border-radius: 1rem;
    overflow: hidden;
    background: rgba(31, 41, 55, 0.4);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.faq-item:hover {
    border-color: var(--primary);
    background: rgba(31, 41, 55, 0.6);
    box-shadow: 0 8px 25px rgba(0, 212, 255, 0.1);
}

.faq-question {
    background: transparent;
    padding: 1.8rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
}

.faq-question:hover {
    background: rgba(0, 212, 255, 0.05);
}

.faq-question h4 {
    color: var(--text-primary);
    margin: 0;
    font-weight: 600;
    text-align: left;
    font-size: 1rem;
}

.faq-toggle {
    color: var(--primary);
    font-size: 1.6rem;
    transition: transform 0.3s ease;
    flex-shrink: 0;
    margin-left: 1rem;
}

.faq-item.active .faq-toggle {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 1.8rem;
    background: rgba(0, 0, 0, 0.3);
    color: var(--text-secondary);
    display: none;
    line-height: 1.8;
    border-top: 1px solid var(--border);
    font-size: 0.95rem;
}

.faq-item.active .faq-answer {
    display: block;
    animation: slideDown 0.3s ease;
}

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

/* Updates Section */
.updates-timeline {
    max-width: 900px;
    margin: 3rem auto;
    position: relative;
}

.update-item {
    margin-bottom: 2.5rem;
    padding-left: 2.5rem;
    border-left: 2px solid var(--primary);
    position: relative;
    animation: fadeInLeft 0.6s ease forwards;
}

.update-item:nth-child(1) { animation-delay: 0.1s; }
.update-item:nth-child(2) { animation-delay: 0.2s; }
.update-item:nth-child(3) { animation-delay: 0.3s; }
.update-item:nth-child(4) { animation-delay: 0.4s; }
.update-item:nth-child(5) { animation-delay: 0.5s; }

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.update-item::before {
    content: "";
    position: absolute;
    left: -9px;
    top: 0;
    width: 16px;
    height: 16px;
    background: var(--primary);
    border-radius: 50%;
    border: 3px solid var(--bg-dark);
    box-shadow: 0 0 0 4px rgba(0, 212, 255, 0.2);
}

.update-date {
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.update-title {
    color: var(--text-primary);
    font-weight: 700;
    margin-bottom: 0.7rem;
    font-size: 1.05rem;
}

.update-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Footer */
footer {
    background: rgba(10, 14, 23, 0.8);
    backdrop-filter: blur(20px);
    border-top: 1px solid var(--border);
    padding: 4rem 2rem 1.5rem;
    margin-top: 5rem;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    font-weight: 700;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

.footer-section ul li {
    margin-bottom: 1rem;
}

.footer-section a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-block;
    font-size: 0.95rem;
}

.footer-section a:hover {
    color: var(--primary);
    transform: translateX(4px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    color: var(--text-tertiary);
    font-size: 0.9rem;
}

/* Scroll to Top Button */
.scroll-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--primary);
    color: var(--bg-dark);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: none;
    z-index: 999;
    font-size: 1.5rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.3);
}

.scroll-to-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 212, 255, 0.4);
}

.scroll-to-top.show {
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Responsive */
@media (max-width: 768px) {
    header {
        padding: 1.5rem 1.5rem;
    }

    nav {
        position: relative;
    }

    .hamburger {
        display: flex;
    }

    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        gap: 0;
        background: rgba(15, 20, 25, 0.98);
        backdrop-filter: blur(20px);
        border: 1px solid var(--border);
        border-top: none;
        padding: 1.5rem;
        display: none;
        border-radius: 0 0 1rem 1rem;
        margin-top: 0.5rem;
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links li {
        padding: 1rem 0;
        border-bottom: 1px solid var(--border);
    }

    .nav-links li:last-child {
        border-bottom: none;
    }

    .nav-links a {
        display: block;
        font-weight: 600;
    }

    .btn-login {
        width: 100%;
        text-align: center;
        padding: 0.9rem 1.5rem;
        font-size: 1rem;
        font-weight: 700;
    }

    .logo {
        font-size: 1.4rem;
        font-weight: 800;
    }

    .hero {
        min-height: 70vh;
        padding: 4rem 1.5rem;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    .hero p {
        font-size: 1rem;
    }

    section {
        padding: 3.5rem 1.5rem;
    }

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

    .pricing-card.featured {
        transform: scale(1);
    }

    .pricing-card.featured:hover {
        transform: scale(1) translateY(-8px);
    }

    .hero-features {
        flex-direction: column;
        gap: 1rem;
    }

    .feature-badge {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    header {
        padding: 0.8rem 1rem;
    }

    .nav-links {
        gap: 0.8rem;
    }

    .logo {
        font-size: 1rem;
        letter-spacing: 1px;
    }

    .btn-login {
        padding: 0.6rem 1.2rem;
        font-size: 0.85rem;
    }

    .hero {
        min-height: 60vh;
        padding: 2.5rem 1rem;
    }

    .hero h1 {
        font-size: 1.5rem;
    }

    .hero p {
        font-size: 0.95rem;
    }

    section {
        padding: 2.5rem 1rem;
    }

    section h2 {
        font-size: 1.8rem;
    }

    .feature-badge {
        padding: 0.6rem 1rem;
        font-size: 0.85rem;
    }

    .scroll-to-top {
        width: 45px;
        height: 45px;
        bottom: 1.5rem;
        right: 1.5rem;
    }
}