:root {
    --landing-primary: #198754;
    --landing-primary-dark: #146c43;
    --landing-primary-light: #e8f5ee;

    --landing-background: #ffffff;
    --landing-surface: #f8faf9;

    --landing-border: #e5ebe7;

    --landing-text: #1f2933;
    --landing-muted: #6b7280;

    --landing-radius: 18px;

}

.landing {
    min-height: 100vh;
    background-color: var(--landing-background);
    color: var(--landing-text);
}

.landing-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1180px;
    margin: 0 auto;
    padding: 1.25rem 1.5rem;
}

.landing-logo {
    color: var(--landing-text);
    font-size: 1.5rem;
    font-weight: 800;
    text-decoration: none;
    letter-spacing: -0.03em;
}

.landing-header-actions {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.landing-login {
    color: var(--landing-text);
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
}

.landing-login:hover {
    color: var(--landing-primary);
}

.landing-register {
    padding: 0.6rem 1rem;
    background-color: var(--landing-primary);
    border-color: var(--landing-primary);
    color: #fff;
    font-weight: 600;
}

.landing-register:hover {
    background-color: var(--landing-primary-dark);
    border-color: var(--landing-primary-dark);
    color: #fff;
}

/* Hero */

.landing-hero {
    display: flex;
    align-items: center;
    gap: 5rem;
    max-width: 1180px;
    min-height: 650px;
    margin: 0 auto;
    padding: 5rem 1.5rem;
}

.landing-hero-content {
    flex: 1;
    max-width: 650px;
}

.landing-eyebrow {
    display: block;
    margin-bottom: 0.6rem;
    color: var(--landing-primary);
    font-size: 0.78rem;
    font-weight: 750;
    letter-spacing: 0.09em;
    text-transform: uppercase;
}

.landing-title {
    margin: 0;
    font-size: clamp(2.8rem, 5vw, 4.4rem);
    font-weight: 800;
    letter-spacing: -0.045em;
    line-height: 1.05;
}

.landing-title span {
    display: block;
    color: var(--landing-primary);
}

.landing-description {
    max-width: 600px;
    margin: 1.5rem 0 0;
    color: var(--landing-muted);
    font-size: 1.08rem;
    line-height: 1.7;
}

.landing-hero-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-top: 2rem;
}

.landing-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.65rem;
    padding: 0.8rem 1.3rem;
    background-color: var(--landing-primary);
    border-color: var(--landing-primary);
    color: #fff;
    font-weight: 650;
}

.landing-primary:hover {
    background-color: var(--landing-primary-dark);
    border-color: var(--landing-primary-dark);
    color: #fff;
}

.landing-primary i {
    font-size: 0.75rem;
    transition: transform 0.2s ease;
}

.landing-primary:hover i {
    transform: translateX(3px);
}

.landing-secondary {
    color: var(--landing-muted);
    font-size: 0.9rem;
    text-decoration: none;
}

.landing-secondary span {
    color: var(--landing-primary);
    font-weight: 650;
}

.landing-secondary:hover {
    color: var(--landing-text);
}

.landing-hero-note {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1.5rem;
    color: var(--landing-muted);
    font-size: 0.82rem;
}

.landing-hero-note i {
    color: var(--landing-primary);
}

/* Phone */

.landing-hero-visual {
    display: flex;
    flex: 0 0 360px;
    justify-content: center;
}

.landing-phone {
    width: 280px;
    min-height: 540px;
    padding: 0.75rem;
    background-color: #111827;
    border: 6px solid #111827;
    border-radius: 38px;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.14);
}

.landing-phone-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.6rem 0.8rem 1rem;
    color: #fff;
    font-size: 0.75rem;
    font-weight: 600;
}

.landing-phone-content {
    min-height: 475px;
    padding: 1.5rem 1rem;
    background-color: #fff;
    border-radius: 27px;
    text-align: center;
}

.landing-phone-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    margin: 0 auto 1rem;
    border-radius: 15px;
    background-color: var(--landing-primary-light);
    color: var(--landing-primary);
}

.landing-phone-title {
    font-weight: 700;
}

.landing-phone-description {
    margin-top: 0.35rem;
    color: var(--landing-muted);
    font-size: 0.75rem;
}

.landing-scan-area {
    position: relative;
    height: 190px;
    margin-top: 1.5rem;
    border-radius: 15px;
    background-color: #f1f4f2;
}

.landing-scan-corner {
    position: absolute;
    width: 28px;
    height: 28px;
    border-color: var(--landing-primary);
    border-style: solid;
}

.landing-scan-corner-tl {
    top: 20px;
    left: 20px;
    border-width: 3px 0 0 3px;
}

.landing-scan-corner-tr {
    top: 20px;
    right: 20px;
    border-width: 3px 3px 0 0;
}

.landing-scan-corner-bl {
    bottom: 20px;
    left: 20px;
    border-width: 0 0 3px 3px;
}

.landing-scan-corner-br {
    right: 20px;
    bottom: 20px;
    border-width: 0 3px 3px 0;
}

.landing-scan-line {
    position: absolute;
    top: 50%;
    right: 25px;
    left: 25px;
    height: 2px;
    background-color: var(--landing-primary);
}

.landing-phone-status {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    margin-top: 1rem;
    color: var(--landing-primary);
    font-size: 0.75rem;
    font-weight: 600;
}

/* Sections */

.landing-problem,
.landing-features,
.landing-workflow {
    max-width: 1180px;
    margin: 0 auto;
    padding: 6rem 1.5rem;
}

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

.landing-section-header {
    max-width: 700px;
    margin: 0 auto 3rem;
    text-align: center;
}

.landing-section-header h2 {
    margin: 0;
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 750;
    letter-spacing: -0.035em;
    line-height: 1.15;
}

.landing-section-header p {
    margin: 1rem 0 0;
    color: var(--landing-muted);
    line-height: 1.65;
}

/* Features */

.landing-features {
    padding-top: 0;
}

.landing-feature {
    height: 100%;
    padding: 2rem;
    background-color: var(--landing-surface);
    border: 1px solid var(--landing-border);
    border-radius: var(--landing-radius);
}

.landing-feature-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 46px;
    height: 46px;
    margin-bottom: 1.5rem;
    border-radius: 13px;
    background-color: var(--landing-primary-light);
    color: var(--landing-primary);
}

.landing-feature h3 {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 700;
}

.landing-feature p {
    margin: 0.65rem 0 0;
    color: var(--landing-muted);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* Workflow */

.landing-workflow {
    padding-top: 4rem;
}

.landing-workflow-line {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.landing-step {
    position: relative;
    padding: 1.5rem;
}

.landing-step-number {
    margin-bottom: 1.25rem;
    color: var(--landing-primary);
    font-size: 0.85rem;
    font-weight: 750;
    letter-spacing: 0.08em;
}

.landing-step h3 {
    margin: 0;
    font-size: 1.15rem;
    font-weight: 700;
}

.landing-step p {
    margin: 0.6rem 0 0;
    color: var(--landing-muted);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* Tokens */

.landing-tokens {
    display: flex;
    align-items: center;
    gap: 5rem;
    max-width: 1180px;
    margin: 0 auto;
    padding: 6rem 1.5rem;
}

.landing-token-content {
    flex: 1;
}

.landing-token-content h2 {
    margin: 0;
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 750;
    letter-spacing: -0.035em;
    line-height: 1.15;
}

.landing-token-content p {
    max-width: 600px;
    margin: 1rem 0 1.5rem;
    color: var(--landing-muted);
    line-height: 1.7;
}

.landing-token-visual {
    flex: 0 0 360px;
    padding: 1.5rem;
    background-color: var(--landing-surface);
    border: 1px solid var(--landing-border);
    border-radius: var(--landing-radius);
}

.landing-token-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem;
    background-color: #fff;
    border: 1px solid var(--landing-border);
    border-radius: 14px;
}

.landing-token-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background-color: var(--landing-primary-light);
    color: var(--landing-primary);
}

.landing-token-label {
    display: block;
    margin-bottom: 0.2rem;
    color: var(--landing-muted);
    font-size: 0.75rem;
}

.landing-token-card strong {
    font-size: 1rem;
}

.landing-token-operation {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 1rem;
    padding: 0 0.25rem;
    color: var(--landing-muted);
    font-size: 0.8rem;
}

.landing-token-operation strong {
    color: #dc3545;
}

/* CTA */

.landing-cta {
    max-width: 1180px;
    margin: 2rem auto 0;
    padding: 0 1.5rem;
}

.landing-cta-content {
    padding: 5rem 2rem;
    background-color: var(--landing-primary-light);
    border-radius: 24px;
    text-align: center;
}

.landing-cta-content h2 {
    max-width: 650px;
    margin: 0 auto;
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 750;
    letter-spacing: -0.035em;
    line-height: 1.15;
}

.landing-cta-content p {
    max-width: 550px;
    margin: 1rem auto 1.5rem;
    color: var(--landing-muted);
    line-height: 1.6;
}

/* Footer */

.landing-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1180px;
    margin: 0 auto;
    padding: 2.5rem 1.5rem;
    color: var(--landing-muted);
    font-size: 0.8rem;
}

.landing-footer-links {
    display: flex;
    gap: 1.25rem;
}

.landing-footer-links a {
    color: var(--landing-muted);
    text-decoration: none;
}

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

/* Responsive */

@media (max-width: 991.98px) {
    .landing-hero {
        gap: 3rem;
    }

    .landing-hero-visual {
    flex-basis: 300px;
}

    .landing-phone {
        width: 250px;
    }

    .landing-tokens {
        gap: 3rem;
    }

    .landing-token-visual {
        flex-basis: 320px;
    }

}

@media (max-width: 767.98px) {
    .landing-header {
        padding: 1rem 1.25rem;
    }

    .landing-header-actions {
    gap: 0.75rem;
}

    .landing-hero {
        display: block;
        min-height: auto;
        padding: 4rem 1.25rem;
        text-align: center;
    }

    .landing-hero-content {
        max-width: none;
    }

    .landing-description {
        margin-right: auto;
        margin-left: auto;
        font-size: 0.95rem;
    }

    .landing-hero-actions {
        justify-content: center;
        flex-wrap: wrap;
    }

    .landing-hero-note {
        justify-content: center;
    }

    .landing-hero-visual {
        margin-top: 3rem;
    }

    .landing-problem,
    .landing-features,
    .landing-workflow,
    .landing-tokens {
        padding: 4rem 1.25rem;
    }

    .landing-workflow-line {
        grid-template-columns: 1fr;
    }

    .landing-tokens {
        display: block;
    }

    .landing-token-visual {
        margin-top: 2rem;
    }

    .landing-footer {
        padding: 2rem 1.25rem;
    }

}

@media (max-width: 575.98px) {
    .landing-logo {
        font-size: 1.3rem;
    }

    .landing-login {
    display: none;
}

    .landing-register {
        padding: 0.55rem 0.85rem;
        font-size: 0.85rem;
    }

    .landing-title {
        font-size: 2.5rem;
    }

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

    .landing-primary {
        width: 100%;
    }

    .landing-phone {
        width: 240px;
    }

    .landing-footer {
        flex-direction: column;
        gap: 1rem;
    }
}