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

:root {
    --bg-primary: #0f0f0f;
    --bg-secondary: #0a0a0a;
    --bg-tertiary: #141414;
    --bg-card: #1a1a1a;
    --bg-card-hover: #202020;
    --bg-dark: #1f1f1f;
    --bg-accent: #252525;
    --text-white: #ffffff;
    --text-gray: #afae9c;
    --text-gray-dark: #807e6b;
    --border-color: rgba(255, 255, 255, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-white);
    line-height: 1.6;
}

/* Utilities */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1rem;
}

.section {
    padding: 5rem 1rem;
}

.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    border: none;
    font-size: 1rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.btn-primary {
    background: var(--text-white);
    color: #000;
    box-shadow: 0 10px 40px rgba(255, 255, 255, 0.2);
}

.btn-primary:hover {
    background: #e5e5e5;
}

.btn-outline {
    background: transparent;
    color: var(--text-white);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 2rem;
    transition: all 0.3s;
}

.card:hover {
    background: var(--bg-card-hover);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    transform: translateY(-2px);
}

h1 {
    font-size: 3.5rem;
    line-height: 1.2;
    font-weight: 500;
    margin-bottom: 1.5rem;
}

h2 {
    font-size: 2.5rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

h3 {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: 0.75rem;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    transition: all 0.3s;
    padding: 1rem 0;
}

.nav.scrolled {
    background: var(--bg-secondary);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    padding: 0.75rem 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.nav-logo {
    display: flex;
    align-items: center;
    cursor: pointer;
}

.nav-logo-icon {
    width: 3.0rem;
    height: 3.0rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 3px;
}

.nav-logo-text {
    font-size: 1.25rem;
    font-weight: 400;
    letter-spacing: 0.5px;
}

.nav-menu {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    color: var(--text-gray);
    text-decoration: none;
    transition: color 0.3s;
    cursor: pointer;
}

.nav-menu a:hover {
    color: var(--text-white);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-white);
    cursor: pointer;
    font-size: 1.5rem;
}

.mobile-menu {
    display: none;
    flex-direction: column;
    gap: 1rem;
    padding: 1.5rem 0;
    border-top: 1px solid var(--border-color);
    margin-top: 1rem;
}

.mobile-menu.active {
    display: flex;
}

/* Hero */
.hero {
    position: relative;
    background: linear-gradient(to bottom, #0f0f0f, #1a1a1a, #0f0f0f);
    padding: 8rem 1.5rem 5rem;
    overflow: hidden;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at top, rgba(255, 255, 255, 0.1), transparent);
    pointer-events: none;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    align-items: center;
    position: relative;
    max-width: 1280px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 9999px;
    margin-bottom: 1.5rem;
    font-size: 0.875rem;
}

.hero-highlight {
    position: relative;
}

.hero-highlight::after {
    content: '';
    position: absolute;
    bottom: 0.5rem;
    left: 0;
    right: 0;
    height: 0.75rem;
    background: rgba(255, 255, 255, 0.2);
    z-index: -1;
}

.hero-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    margin-top: 3rem;
}

.hero-stat {
    border-left: 2px solid var(--text-white);
    padding-left: 1rem;
}

.hero-stat-value {
    font-size: 2rem;
    margin-bottom: 0.25rem;
}

.hero-stat-label {
    font-size: 0.875rem;
    color: var(--text-gray-dark);
}

.hero-visual {
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 2rem;
    text-align: center;
    transition: transform 0.3s;
}

.hero-visual:hover {
    transform: scale(1.05);
}

.qr-code {
    width: 12rem;
    height: 12rem;
    background: var(--text-white);
    border-radius: 0.75rem;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.2);
}

.stars {
    display: flex;
    gap: 0.25rem;
    justify-content: center;
    margin-top: 1.5rem;
    color: #fbbf24;
}

/* Grid layouts */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.grid-3 {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

/* Benefits */
.benefit-icon {
    width: 3rem;
    height: 3rem;
    background: var(--bg-accent);
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    transition: transform 0.3s;
}

.card:hover .benefit-icon {
    transform: scale(1.1);
}

/* Demo Section */
.demo-container {
    min-height: 500px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.demo-step {
    animation: fadeIn 0.5s;
}

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

.rating-stars {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    margin: 2rem 0;
}

.rating-star {
    width: 3rem;
    height: 3rem;
    cursor: pointer;
    transition: all 0.2s;
    color: var(--text-white);
}

.rating-star:hover,
.rating-star.active {
    color: #fbbf24;
    transform: scale(1.1);
}

/* How It Works */
.step-card {
    position: relative;
}

.step-number {
    position: absolute;
    top: -1rem;
    left: -1rem;
    width: 4rem;
    height: 4rem;
    background: var(--text-white);
    color: #000;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 600;
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.2);
}

.step-icon {
    width: 4rem;
    height: 4rem;
    background: var(--bg-accent);
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 1rem 0 1.5rem;
}

.step-details {
    list-style: none;
    margin-top: 1.5rem;
}

.step-details li {
    display: flex;
    gap: 0.5rem;
    align-items: start;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-gray-dark);
}

/* Form */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    color: var(--text-white);
    font-size: 1rem;
    transition: all 0.3s;
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.08);
}

.form-textarea {
    resize: vertical;
    min-height: 100px;
}

/* Footer */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 3rem 1.5rem;
}

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

.footer h4 {
    color: var(--text-white);
    margin-bottom: 1rem;
    font-size: 1rem;
}

.footer ul {
    list-style: none;
}

.footer ul li {
    margin-bottom: 0.5rem;
}

.footer a {
    color: var(--text-gray-dark);
    text-decoration: none;
    transition: color 0.3s;
    font-size: 0.875rem;
}

.footer a:hover {
    color: var(--text-white);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 2rem;
    margin-top: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
}

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

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
    }

    .mobile-menu-btn {
        display: none;
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 2rem;
    }

    .hero-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-3 {
        grid-template-columns: repeat(3, 1fr);
    }

    .footer-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .nav-desktop {
        display: flex !important;
    }

    .mobile-menu-btn {
        display: none !important;
    }
}

@media (max-width: 1023px) {
    .nav-desktop {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 2rem;
    }

    .section {
        padding: 3rem 1rem;
    }

    .hero {
        padding: 6rem 1rem 3rem;
    }
}

/* Icons */
.icon {
    width: 1.5rem;
    height: 1.5rem;
}

.icon-lg {
    width: 2rem;
    height: 2rem;
}

.icon-xl {
    width: 8rem;
    height: 8rem;
}

/* Hidden utility */
.hidden {
    display: none;
}

/* Toast notification */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--text-white);
    color: #000;
    padding: 1rem 1.5rem;
    border-radius: 0.5rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    animation: slideIn 0.3s;
    z-index: 9999;
}

@keyframes slideIn {
    from {
        transform: translateX(400px);
    }
    to {
        transform: translateX(0);
    }
}

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

.flex {
    display: flex;
}

.items-center {
    align-items: center;
}

.gap-2 {
    gap: 0.5rem;
}

.gap-4 {
    gap: 1rem;
}

.mb-4 {
    margin-bottom: 1rem;
}

.mb-6 {
    margin-bottom: 1.5rem;
}

.mt-6 {
    margin-top: 1.5rem;
}