/* =============================================
   LANDING.CSS - Speed Fulfillment Landing Page
   Standalone, refined, elegant design
   Font: Roboto | Style: Minimal & Professional
   ============================================= */

@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500;700;900&display=swap');

/* === Variables === */
:root {
    --lp-primary: #3b82f6;
    --lp-primary-hover: #2563eb;
    --lp-primary-soft: #eff6ff;
    --lp-bg: #fafbfc;
    --lp-white: #ffffff;
    --lp-dark: #0f172a;
    --lp-text: #1e293b;
    --lp-text-secondary: #64748b;
    --lp-text-muted: #94a3b8;
    --lp-border: #e8ecf1;
    --lp-border-light: #f1f5f9;
    --lp-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.03);
    --lp-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    --lp-shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.08);
    --lp-radius: 12px;
    --lp-radius-lg: 16px;
    --lp-transition: all 0.25s ease;
}

/* === Reset === */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body.landing-page {
    font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--lp-text);
    background: var(--lp-bg);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--lp-primary);
    text-decoration: none;
    transition: var(--lp-transition);
}

a:hover {
    color: var(--lp-primary-hover);
}

/* === Navigation === */
.lp-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--lp-border-light);
}

.lp-nav-inner {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 2rem;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.lp-logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--lp-text);
    display: flex;
    align-items: center;
    gap: 0.625rem;
    letter-spacing: -0.01em;
}

.lp-logo-icon {
    width: 32px;
    height: 32px;
    background: var(--lp-primary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.lp-logo-icon svg {
    width: 18px;
    height: 18px;
}

.lp-nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
    list-style: none;
}

.lp-nav-links a {
    color: var(--lp-text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--lp-transition);
}

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

.lp-nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.5rem 1.25rem;
    background: var(--lp-primary);
    color: white !important;
    border-radius: 8px;
    font-weight: 500;
    font-size: 0.875rem;
    transition: var(--lp-transition);
}

.lp-nav-cta:hover {
    background: var(--lp-primary-hover);
    color: white !important;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

/* === Hero === */
.lp-hero {
    position: relative;
    padding: 9rem 2rem 5rem;
    text-align: center;
    background: var(--lp-white);
    border-bottom: 1px solid var(--lp-border-light);
}

.lp-hero-content {
    position: relative;
    max-width: 680px;
    margin: 0 auto;
}

.lp-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.375rem 1rem;
    background: var(--lp-primary-soft);
    color: var(--lp-primary);
    border-radius: 20px;
    font-size: 0.8125rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(59, 130, 246, 0.1);
    animation: fadeInUp 0.5s ease-out;
}

.lp-hero h1 {
    font-size: 3.25rem;
    font-weight: 900;
    line-height: 1.15;
    letter-spacing: -0.025em;
    margin-bottom: 1rem;
    color: var(--lp-text);
    animation: fadeInUp 0.5s ease-out 0.1s both;
}

.lp-hero p {
    font-size: 1.25rem;
    color: var(--lp-text-secondary);
    max-width: 560px;
    margin: 0 auto 2rem;
    line-height: 1.75;
    font-weight: 300;
    animation: fadeInUp 0.5s ease-out 0.15s both;
}

.lp-hero-actions {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    animation: fadeInUp 0.5s ease-out 0.2s both;
}

/* === Buttons === */
.lp-btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.75rem;
    background: var(--lp-primary);
    color: white;
    border-radius: 8px;
    font-weight: 500;
    font-size: 0.9375rem;
    border: none;
    cursor: pointer;
    transition: var(--lp-transition);
}

.lp-btn-primary:hover {
    background: var(--lp-primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(59, 130, 246, 0.3);
    color: white;
}

.lp-btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.75rem;
    background: var(--lp-white);
    color: var(--lp-text);
    border-radius: 8px;
    font-weight: 500;
    font-size: 0.9375rem;
    border: 1px solid var(--lp-border);
    cursor: pointer;
    transition: var(--lp-transition);
}

.lp-btn-secondary:hover {
    border-color: var(--lp-text-muted);
    transform: translateY(-1px);
    box-shadow: var(--lp-shadow-sm);
}

/* === Section === */
.lp-section {
    padding: 5rem 2rem;
    max-width: 1120px;
    margin: 0 auto;
}

.lp-section-header {
    text-align: center;
    margin-bottom: 3.5rem;
}

.lp-section-header h2 {
    font-size: 2.125rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 0.75rem;
    color: var(--lp-text);
}

.lp-section-header p {
    font-size: 1.0625rem;
    color: var(--lp-text-secondary);
    max-width: 500px;
    margin: 0 auto;
    font-weight: 300;
}

/* === Service Cards === */
.lp-services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.lp-service-card {
    background: var(--lp-white);
    border-radius: var(--lp-radius);
    padding: 2rem 1.75rem;
    border: 1px solid var(--lp-border);
    transition: var(--lp-transition);
}

.lp-service-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--lp-shadow);
    border-color: var(--lp-border-light);
}

.lp-service-icon {
    width: 48px;
    height: 48px;
    background: var(--lp-primary-soft);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
    color: var(--lp-primary);
}

.lp-service-icon svg {
    width: 24px;
    height: 24px;
}

.lp-service-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: var(--lp-text);
}

.lp-service-card .lp-service-subtitle {
    font-size: 0.8125rem;
    color: var(--lp-primary);
    font-weight: 500;
    margin-bottom: 0.75rem;
}

.lp-service-card p.lp-service-desc {
    font-size: 0.9375rem;
    color: var(--lp-text-secondary);
    line-height: 1.7;
    margin-bottom: 1.25rem;
    font-weight: 300;
}

/* Feature list */
.lp-feature-list {
    list-style: none;
    padding: 0;
}

.lp-feature-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    padding: 0.3125rem 0;
    font-size: 0.9375rem;
    color: var(--lp-text-secondary);
}

.lp-feature-list li::before {
    content: '';
    flex-shrink: 0;
    width: 16px;
    height: 16px;
    margin-top: 2px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%233b82f6'%3E%3Cpath fill-rule='evenodd' d='M16.707 5.293a1 1 0 010 1.414l-8 8a1 1 0 01-1.414 0l-4-4a1 1 0 011.414-1.414L8 12.586l7.293-7.293a1 1 0 011.414 0z' clip-rule='evenodd'/%3E%3C/svg%3E") no-repeat center / contain;
}

/* === Pricing === */
.lp-pricing-section {
    background: var(--lp-white);
    border-top: 1px solid var(--lp-border-light);
    border-bottom: 1px solid var(--lp-border-light);
}

.lp-pricing-service {
    margin-bottom: 3.5rem;
}

.lp-pricing-service:last-child {
    margin-bottom: 0;
}

.lp-pricing-service-title {
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.625rem;
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1.75rem;
    color: var(--lp-text);
}

.lp-pricing-service-title svg {
    width: 20px;
    height: 20px;
    color: var(--lp-text-muted);
}

.lp-pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
    max-width: 900px;
    margin: 0 auto;
}

.lp-pricing-card {
    background: var(--lp-white);
    border-radius: var(--lp-radius);
    padding: 1.75rem;
    border: 1px solid var(--lp-border);
    transition: var(--lp-transition);
    position: relative;
    display: flex;
    flex-direction: column;
}

.lp-pricing-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--lp-shadow);
}

.lp-pricing-card.popular {
    border-color: var(--lp-primary);
}

.lp-popular-badge {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--lp-primary);
    color: white;
    padding: 0.1875rem 0.75rem;
    border-radius: 4px;
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    white-space: nowrap;
}

.lp-pricing-name {
    font-size: 0.9375rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--lp-text);
}

.lp-pricing-price {
    display: flex;
    align-items: baseline;
    gap: 0.25rem;
    margin-bottom: 1.25rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--lp-border-light);
}

.lp-pricing-amount {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--lp-text);
    letter-spacing: -0.02em;
}

.lp-pricing-period {
    font-size: 0.8125rem;
    color: var(--lp-text-muted);
    font-weight: 400;
}

.lp-pricing-features {
    list-style: none;
    padding: 0;
    flex: 1;
    margin-bottom: 1.25rem;
}

.lp-pricing-features li {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    padding: 0.3125rem 0;
    font-size: 0.875rem;
    color: var(--lp-text-secondary);
}

.lp-pricing-features li::before {
    content: '';
    flex-shrink: 0;
    width: 14px;
    height: 14px;
    margin-top: 3px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%233b82f6'%3E%3Cpath fill-rule='evenodd' d='M16.707 5.293a1 1 0 010 1.414l-8 8a1 1 0 01-1.414 0l-4-4a1 1 0 011.414-1.414L8 12.586l7.293-7.293a1 1 0 011.414 0z' clip-rule='evenodd'/%3E%3C/svg%3E") no-repeat center / contain;
}

.lp-pricing-cta {
    display: block;
    text-align: center;
    padding: 0.75rem 1.25rem;
    border-radius: 8px;
    font-weight: 500;
    font-size: 0.9375rem;
    transition: var(--lp-transition);
    border: 1px solid var(--lp-border);
    color: var(--lp-text);
    background: var(--lp-white);
}

.lp-pricing-cta:hover {
    border-color: var(--lp-primary);
    color: var(--lp-primary);
}

.lp-pricing-card.popular .lp-pricing-cta {
    background: var(--lp-primary);
    color: white;
    border-color: var(--lp-primary);
}

.lp-pricing-card.popular .lp-pricing-cta:hover {
    background: var(--lp-primary-hover);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.25);
}

/* === CTA Footer === */
.lp-cta-section {
    padding: 5rem 2rem;
    text-align: center;
    background: var(--lp-dark);
    color: white;
}

.lp-cta-content {
    max-width: 520px;
    margin: 0 auto;
}

.lp-cta-section h2 {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    letter-spacing: -0.02em;
}

.lp-cta-section p {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 2rem;
    font-weight: 300;
    line-height: 1.7;
}

.lp-zalo-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 2rem;
    background: #0068ff;
    color: white;
    border-radius: 8px;
    font-size: 0.9375rem;
    font-weight: 500;
    transition: var(--lp-transition);
}

.lp-zalo-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(0, 104, 255, 0.35);
    color: white;
}

.lp-zalo-btn svg {
    width: 18px;
    height: 18px;
}

/* === Footer === */
.lp-footer {
    padding: 1.5rem 2rem;
    text-align: center;
    background: var(--lp-dark);
    color: rgba(255, 255, 255, 0.35);
    font-size: 0.8125rem;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.lp-footer a {
    color: rgba(255, 255, 255, 0.5);
}

.lp-footer a:hover {
    color: white;
}

/* === Animations === */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(16px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.lp-animate {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.lp-animate.visible {
    opacity: 1;
    transform: translateY(0);
}

/* === Responsive === */
@media (max-width: 968px) {
    .lp-services-grid {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }

    .lp-pricing-grid {
        grid-template-columns: 1fr;
        max-width: 360px;
    }
}

@media (max-width: 768px) {
    .lp-nav-links {
        display: none;
    }

    .lp-nav-links.show {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(16px);
        padding: 1rem 2rem 1.5rem;
        gap: 0.75rem;
        border-bottom: 1px solid var(--lp-border);
        box-shadow: var(--lp-shadow);
    }

    .lp-hero {
        padding: 7rem 1.5rem 3.5rem;
    }

    .lp-hero h1 {
        font-size: 2rem;
    }

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

    .lp-hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .lp-section {
        padding: 3rem 1.5rem;
    }

    .lp-section-header h2 {
        font-size: 1.5rem;
    }

    .lp-cta-section {
        padding: 3.5rem 1.5rem;
    }

    .lp-cta-section h2 {
        font-size: 1.5rem;
    }
}

.lp-mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    color: var(--lp-text);
}

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