:root {
    --primary: #3ED6A8;
    --primary-dark: #1FB488;
    --accent: #9B7BFF;
    --dark: #0F172A;
    --light: #F8FAFC;
    --gray: #64748B;
    --gradient: linear-gradient(135deg, #3ED6A8 0%, #9B7BFF 100%);
    --gradient-soft: linear-gradient(135deg, rgba(62, 214, 168, 0.08) 0%, rgba(155, 123, 255, 0.08) 100%);
    --cta: #FF6B4A;
    --cta-dark: #F04E2C;
    --cta-gradient: linear-gradient(135deg, #FF8A5B 0%, #FF4D7D 100%);
    --discount: #E11D48;
}

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

body {
    font-family: 'Inter', sans-serif;
    color: var(--dark);
    background-color: var(--light);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    padding: 20px 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 100;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(15, 23, 42, 0.05);
}

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

.logo {
    font-size: 22px;
    font-weight: 700;
    color: var(--dark);
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo .logo-mark {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: var(--gradient);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    box-shadow: 0 6px 16px rgba(62, 214, 168, 0.35);
}

.logo span.logo-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 700;
}

.nav-desktop {
    display: none;
}

@media (min-width: 768px) {
    .nav-desktop {
        display: flex;
        align-items: center;
        gap: 28px;
    }

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

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

    .nav-desktop a.btn {
        color: #fff;
    }

    .nav-desktop a.btn:hover {
        color: #fff;
    }
}

.mobile-menu-btn {
    background: none;
    border: none;
    font-size: 24px;
    color: var(--dark);
    cursor: pointer;
}

@media (min-width: 768px) {
    .mobile-menu-btn {
        display: none;
    }
}

/* Hero Section */
.hero {
    padding: 140px 0 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: var(--gradient);
    opacity: 0.08;
    border-radius: 50%;
    z-index: -1;
    animation: rotate 30s linear infinite;
}

@keyframes rotate {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

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

.hero-text p {
    font-size: 18px;
    color: var(--gray);
    max-width: 720px;
    margin: 0 auto 36px;
}

.hero h1 {
    font-size: 34px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.25;
    letter-spacing: -0.02em;
}

.hero h1 .highlight {
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 30px;
    background: var(--gradient);
    color: white;
    text-decoration: none;
    font-weight: 600;
    border-radius: 50px;
    transition: transform 0.3s, box-shadow 0.3s;
    box-shadow: 0 4px 20px rgba(62, 214, 168, 0.35);
    border: 0;
    cursor: pointer;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 28px rgba(155, 123, 255, 0.4);
}

.btn i {
    font-size: 18px;
}

.btn-accent {
    background: var(--cta-gradient);
    color: #fff;
    box-shadow: 0 10px 28px rgba(255, 77, 125, 0.45);
}

.btn-accent:hover {
    transform: translateY(-3px);
    box-shadow: 0 16px 34px rgba(255, 77, 125, 0.55);
}

.btn-sm {
    padding: 10px 18px;
    font-size: 14px;
    box-shadow: 0 6px 18px rgba(255, 77, 125, 0.35);
}

.btn-sm i {
    font-size: 14px;
}

.hero-media {
    display: flex;
    justify-content: center;
}

.hero-image {
    display: block;
    max-width: 100%;
    width: 100%;
    border-radius: 24px;
    box-shadow: 0 24px 48px rgba(15, 23, 42, 0.12);
    border: 1px solid rgba(15, 23, 42, 0.05);
}

@media (min-width: 900px) {
    .hero {
        text-align: left;
    }

    .hero-grid {
        grid-template-columns: 1.05fr 1fr;
        gap: 60px;
    }

    .hero-text p {
        margin: 0 0 36px;
    }

    .hero h1 {
        font-size: 48px;
    }

    .hero-image {
        max-width: 560px;
    }
}

/* Features */
.features {
    padding: 90px 0;
}

.section-title {
    text-align: center;
    font-size: 32px;
    margin-bottom: 50px;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

@media (min-width: 768px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.feature-card {
    background: white;
    padding: 28px;
    border-radius: 20px;
    box-shadow: 0 6px 20px rgba(15, 23, 42, 0.05);
    border: 1px solid rgba(15, 23, 42, 0.04);
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 14px 32px rgba(62, 214, 168, 0.18);
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: var(--gradient);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: white;
    font-size: 22px;
    box-shadow: 0 10px 22px rgba(155, 123, 255, 0.25);
}

.feature-card h3 {
    font-size: 20px;
    margin-bottom: 12px;
    letter-spacing: -0.01em;
}

.feature-card p {
    color: var(--gray);
    font-size: 15px;
}

/* How it works */
.how-it-works {
    padding: 90px 0;
    background: var(--gradient-soft);
}

.steps {
    display: flex;
    flex-direction: column;
    gap: 28px;
    max-width: 640px;
    margin: 0 auto;
}

.step {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    background: white;
    padding: 22px 24px;
    border-radius: 18px;
    box-shadow: 0 6px 20px rgba(15, 23, 42, 0.05);
}

.step-number {
    width: 44px;
    height: 44px;
    background: var(--gradient);
    color: white;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
    box-shadow: 0 6px 16px rgba(62, 214, 168, 0.3);
}

.step-content h3 {
    margin-bottom: 8px;
    letter-spacing: -0.01em;
}

.step-content p {
    color: var(--gray);
}

/* Pricing */
.pricing {
    padding: 90px 0;
}

.pricing .section-subtitle {
    text-align: center;
    color: var(--gray);
    margin: -30px auto 50px;
    max-width: 560px;
}

.pricing-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    max-width: 880px;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .pricing-grid {
        grid-template-columns: 1fr 1fr;
        align-items: stretch;
        gap: 28px;
    }
}

.pricing-card {
    background: white;
    border-radius: 24px;
    padding: 36px 32px;
    text-align: center;
    position: relative;
    overflow: hidden;
    box-shadow: 0 24px 48px rgba(155, 123, 255, 0.18);
    border: 1px solid rgba(62, 214, 168, 0.2);
    display: flex;
    flex-direction: column;
}

.pricing-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: var(--gradient);
}

.pricing-card.featured {
    border: 2px solid var(--cta);
    box-shadow: 0 28px 56px rgba(255, 77, 125, 0.22);
}

@media (min-width: 768px) {
    .pricing-card.featured {
        transform: translateY(-6px);
    }
}

.pricing-card.featured::before {
    height: 8px;
    background: var(--cta-gradient);
}

.badge-best {
    position: absolute;
    top: 14px;
    right: 18px;
    background: var(--cta-gradient);
    color: #fff;
    padding: 6px 14px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.02em;
    box-shadow: 0 6px 16px rgba(255, 77, 125, 0.4);
}

.pricing-card .plan-name {
    display: inline-block;
    background: var(--gradient-soft);
    color: var(--primary-dark);
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 999px;
    font-size: 14px;
    margin-bottom: 16px;
}

.pricing-card.featured .plan-name {
    background: rgba(255, 77, 125, 0.1);
    color: var(--cta-dark);
}

.pricing-card .price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 24px;
}

.pricing-card .price .amount {
    font-size: 56px;
    font-weight: 700;
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.03em;
}

.pricing-card.featured .price .amount {
    background: var(--cta-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.pricing-card .price .amount-old {
    display: inline-block;
    color: var(--gray);
    font-size: 22px;
    font-weight: 600;
    text-decoration: line-through;
    margin-right: 4px;
    align-self: center;
}

.pricing-card .price .period {
    color: var(--gray);
    font-weight: 500;
}

.pricing-card .price .badge-discount {
    display: inline-block;
    background: var(--discount);
    color: #fff;
    padding: 4px 10px;
    border-radius: 8px;
    font-weight: 700;
    font-size: 14px;
    margin-left: 10px;
    align-self: center;
    box-shadow: 0 4px 10px rgba(225, 29, 72, 0.3);
}

.pricing-card ul {
    list-style: none;
    text-align: left;
    margin: 0 0 28px;
    padding: 0;
    flex-grow: 1;
}

.pricing-card ul li {
    padding: 10px 0;
    border-bottom: 1px solid rgba(15, 23, 42, 0.06);
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--dark);
}

.pricing-card ul li:last-child {
    border-bottom: none;
}

.pricing-card ul li i {
    color: var(--primary-dark);
    font-size: 16px;
}

.pricing-card.featured ul li i {
    color: var(--cta);
}

.pricing-card .btn {
    align-self: center;
}

/* CTA */
.cta {
    padding: 90px 0;
    text-align: center;
    background: var(--gradient);
    color: white;
    position: relative;
    overflow: hidden;
}

.cta h2 {
    font-size: 32px;
    margin-bottom: 18px;
    letter-spacing: -0.02em;
}

.cta p {
    max-width: 620px;
    margin: 0 auto 30px;
    opacity: 0.9;
}

.cta .btn {
    background: white;
    color: var(--primary-dark);
    box-shadow: 0 10px 28px rgba(15, 23, 42, 0.2);
}

.cta .btn:hover {
    box-shadow: 0 14px 32px rgba(15, 23, 42, 0.28);
}

/* Footer */
footer {
    padding: 50px 0 20px;
    background: var(--dark);
    color: white;
}

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

@media (min-width: 768px) {
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

.footer-column h3 {
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--light);
}

.footer-column p {
    color: rgba(248, 250, 252, 0.65);
}

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

.footer-column ul li {
    margin-bottom: 10px;
}

.footer-column ul li a {
    color: rgba(248, 250, 252, 0.65);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-column ul li a:hover {
    color: white;
}

.copyright {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(248, 250, 252, 0.55);
    font-size: 14px;
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: white;
    z-index: 1000;
    padding: 30px;
    transform: translateX(100%);
    transition: transform 0.3s;
    display: flex;
    flex-direction: column;
}

.mobile-menu.active {
    transform: translateX(0);
}

.mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.close-menu {
    background: none;
    border: none;
    font-size: 24px;
    color: var(--dark);
    cursor: pointer;
}

.mobile-nav {
    flex-grow: 1;
}

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

.mobile-nav ul li {
    margin-bottom: 20px;
}

.mobile-nav ul li a {
    color: var(--dark);
    text-decoration: none;
    font-size: 18px;
    font-weight: 500;
}

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

.animate {
    animation: fadeIn 0.6s ease-out forwards;
}

.delay-1 {
    animation-delay: 0.15s;
}

.delay-2 {
    animation-delay: 0.3s;
}

.delay-3 {
    animation-delay: 0.45s;
}

@media (max-width: 480px) {
    .logo {
        font-size: 18px;
    }

    .logo .logo-mark {
        width: 34px;
        height: 34px;
        font-size: 16px;
    }

    .hero h1 {
        font-size: 28px;
    }

    .pricing-card .price .amount {
        font-size: 44px;
    }
}