/* ========================================
   PAIDBYRENT - HIGH-CONVERTING SAAS LANDING PAGE
   Modern, Clean, Conversion-Optimized Design
   ======================================== */

/* ========== RESET & BASE ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #1f2937;
    background-color: #ffffff;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ========== CONTAINER ========== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ========== TYPOGRAPHY ========== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: #111827;
}

h1 {
    font-size: 3.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

h2 {
    font-size: 2.5rem;
    font-weight: 700;
}

h3 {
    font-size: 1.5rem;
    font-weight: 600;
}

p {
    color: #6b7280;
    line-height: 1.7;
}

/* ========== BUTTONS ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.btn--primary {
    background: linear-gradient(135deg, #0891b2 0%, #0369a1 100%);
    color: white;
    box-shadow: 0 4px 14px rgba(8, 145, 178, 0.3);
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(8, 145, 178, 0.4);
}

.btn--secondary {
    background: white;
    color: #0891b2;
    border: 2px solid #e5e7eb;
}

.btn--secondary:hover {
    border-color: #0891b2;
    background: #f0f9ff;
}

.btn--outline {
    background: transparent;
    color: #374151;
    border: 2px solid #e5e7eb;
}

.btn--outline:hover {
    border-color: #0891b2;
    color: #0891b2;
}

.btn--sm {
    padding: 10px 20px;
    font-size: 14px;
}

.btn--lg {
    padding: 18px 36px;
    font-size: 18px;
}

.btn--full {
    width: 100%;
}

/* ========== NAVIGATION ========== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #e5e7eb;
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar--scrolled {
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.navbar__content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 0;
}

.navbar__logo a {
    font-size: 24px;
    font-weight: 800;
    color: #0891b2;
    text-decoration: none;
}

.navbar__menu {
    display: flex;
    list-style: none;
    gap: 32px;
}

.navbar__menu a {
    color: #374151;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.navbar__menu a:hover {
    color: #0891b2;
}

/* ========== HERO SECTION ========== */
.hero {
    padding: 160px 0 100px;
    background: linear-gradient(180deg, #f9fafb 0%, #ffffff 100%);
    margin-top: 72px;
}

.hero__content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.hero__title {
    margin-bottom: 24px;
    line-height: 1.1;
}

.gradient-text {
    background: linear-gradient(135deg, #0891b2 0%, #0369a1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__subtitle {
    font-size: 1.25rem;
    color: #6b7280;
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero__ctas {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

.hero__social-proof {
    display: flex;
    justify-content: center;
    gap: 60px;
    padding-top: 40px;
    border-top: 1px solid #e5e7eb;
}

.social-proof-item {
    text-align: center;
}

.proof-number {
    font-size: 2rem;
    font-weight: 800;
    color: #0891b2;
    margin-bottom: 4px;
}

.proof-label {
    font-size: 0.875rem;
    color: #6b7280;
}

/* ========== PARTNERS SECTION ========== */
.partners {
    padding: 60px 0;
    background: white;
    border-bottom: 1px solid #e5e7eb;
}

.partners__title {
    text-align: center;
    color: #6b7280;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 32px;
}

.partners__logos {
    display: flex;
    justify-content: center;
    gap: 48px;
    flex-wrap: wrap;
}

.partner-logo {
    color: #9ca3af;
    font-weight: 600;
    font-size: 0.875rem;
}

/* ========== SECTION HEADERS ========== */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 1.125rem;
    color: #6b7280;
    max-width: 600px;
    margin: 0 auto;
}

/* ========== BENEFITS SECTION ========== */
.benefits {
    padding: 100px 0;
    background: white;
}

.benefits__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
}

.benefit-card {
    padding: 32px;
    border-radius: 12px;
    border: 1px solid #e5e7eb;
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(20px);
}

.benefit-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.benefit-card:hover {
    border-color: #0891b2;
    box-shadow: 0 10px 30px rgba(8, 145, 178, 0.1);
    transform: translateY(-4px);
}

.benefit-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.benefit-title {
    margin-bottom: 12px;
    color: #111827;
}

.benefit-description {
    color: #6b7280;
    line-height: 1.7;
}

/* ========== HOW IT WORKS SECTION ========== */
.how-it-works {
    padding: 100px 0;
    background: #f9fafb;
}

.steps {
    max-width: 800px;
    margin: 0 auto;
}

.step {
    display: flex;
    gap: 32px;
    margin-bottom: 48px;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.5s ease;
}

.step.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.step-number {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #0891b2 0%, #0369a1 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
}

.step-content {
    flex: 1;
}

.step-title {
    margin-bottom: 12px;
    color: #111827;
}

.step-description {
    color: #6b7280;
    line-height: 1.7;
}

/* ========== PRICING SECTION ========== */
.pricing {
    padding: 100px 0;
    background: white;
}

.pricing__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
    max-width: 1100px;
    margin: 0 auto 40px;
}

.pricing-card {
    position: relative;
    padding: 40px 32px;
    border-radius: 16px;
    border: 2px solid #e5e7eb;
    background: white;
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(20px);
}

.pricing-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.pricing-card:hover {
    border-color: #0891b2;
    box-shadow: 0 20px 40px rgba(8, 145, 178, 0.15);
    transform: translateY(-8px);
}

.pricing-card--featured {
    border-color: #0891b2;
    border-width: 3px;
    box-shadow: 0 10px 30px rgba(8, 145, 178, 0.2);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #0891b2 0%, #0369a1 100%);
    color: white;
    padding: 6px 20px;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

.pricing-header {
    text-align: center;
    margin-bottom: 32px;
}

.pricing-title {
    font-size: 1.5rem;
    margin-bottom: 16px;
    color: #111827;
}

.pricing-price {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.price-amount {
    font-size: 3rem;
    font-weight: 800;
    color: #0891b2;
    line-height: 1;
}

.price-period {
    color: #6b7280;
    font-size: 0.875rem;
    margin-top: 8px;
}

.pricing-features {
    list-style: none;
    margin-bottom: 32px;
}

.pricing-features li {
    padding: 12px 0;
    color: #374151;
    border-bottom: 1px solid #f3f4f6;
}

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

.pricing-note {
    text-align: center;
    color: #6b7280;
    font-size: 0.875rem;
}

/* ========== TESTIMONIALS SECTION ========== */
.testimonials {
    padding: 100px 0;
    background: #f9fafb;
}

.testimonials__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.testimonial-card {
    padding: 32px;
    background: white;
    border-radius: 12px;
    border: 1px solid #e5e7eb;
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(20px);
}

.testimonial-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.testimonial-card:hover {
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transform: translateY(-4px);
}

.testimonial-rating {
    color: #fbbf24;
    font-size: 1.25rem;
    margin-bottom: 16px;
}

.testimonial-text {
    color: #374151;
    line-height: 1.7;
    margin-bottom: 24px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 16px;
}

.author-avatar {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #0891b2 0%, #0369a1 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.875rem;
}

.author-name {
    font-weight: 600;
    color: #111827;
}

.author-title {
    font-size: 0.875rem;
    color: #6b7280;
}

/* ========== FAQ SECTION ========== */
.faq {
    padding: 100px 0;
    background: white;
}

.faq__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 32px;
    max-width: 1000px;
    margin: 0 auto;
}

.faq-item {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.5s ease;
}

.faq-item.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.faq-question {
    font-size: 1.125rem;
    color: #111827;
    margin-bottom: 12px;
}

.faq-answer {
    color: #6b7280;
    line-height: 1.7;
}

/* ========== CTA SECTION ========== */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #0891b2 0%, #0369a1 100%);
    color: white;
}

.cta-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.cta-title {
    color: white;
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.cta-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 40px;
}

.cta-buttons {
    margin-bottom: 24px;
}

.cta-section .btn--primary {
    background: white;
    color: #0891b2;
}

.cta-section .btn--primary:hover {
    background: #f9fafb;
}

.cta-guarantee {
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.875rem;
}

/* ========== FOOTER ========== */
.footer {
    padding: 80px 0 40px;
    background: #111827;
    color: #9ca3af;
}

.footer__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 48px;
    margin-bottom: 48px;
}

.footer-title {
    color: white;
    font-size: 1rem;
    margin-bottom: 20px;
}

.footer-text {
    color: #9ca3af;
    line-height: 1.7;
    font-size: 0.875rem;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: #9ca3af;
    text-decoration: none;
    transition: color 0.3s ease;
    font-size: 0.875rem;
}

.footer-links a:hover {
    color: #0891b2;
}

.footer__bottom {
    padding-top: 32px;
    border-top: 1px solid #374151;
    text-align: center;
    color: #6b7280;
    font-size: 0.875rem;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    .navbar__menu {
        display: none;
    }
    
    .hero {
        padding: 120px 0 80px;
    }
    
    .hero__ctas {
        flex-direction: column;
    }
    
    .hero__social-proof {
        flex-direction: column;
        gap: 24px;
    }
    
    .benefits__grid,
    .pricing__grid,
    .testimonials__grid {
        grid-template-columns: 1fr;
    }
    
    .faq__grid {
        grid-template-columns: 1fr;
    }
    
    .step {
        flex-direction: column;
        text-align: center;
    }
    
    .step-number {
        margin: 0 auto;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 2rem;
    }
    
    .btn--lg {
        padding: 16px 28px;
        font-size: 16px;
    }
    
    .container {
        padding: 0 16px;
    }
}

/* ========== ANIMATIONS ========== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-in {
    animation: fadeInUp 0.6s ease forwards;
}