/* =========================================================================
   DESIGN SYSTEM & VARIABLES
   ========================================================================= */
:root {
    /* Colors - Professional Light Blue Palette (Lighter) */
    --color-primary: #1d4ed8;
    /* Blue 700 - for titles */
    --color-primary-light: #93c5fd;
    /* Blue 300 - soft interactions */
    --color-accent: #60a5fa;
    /* Blue 400 - Buttons & highlights */
    --color-accent-hover: #3b82f6;
    /* Blue 500 */

    --color-bg-light: #f8fafc;
    /* Slate 50 - Very subtle cool grey/blue background */
    --color-bg-white: #ffffff;
    --color-text-dark: #1f2937;
    --color-text-muted: #4b5563;

    --color-success: #10b981;
    --color-error: #ef4444;

    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Spacing & Borders */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;

    --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 10px 25px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.15);

    --transition: all 0.3s ease;
}

/* =========================================================================
   RESET & GLOBAL STYLES
   ========================================================================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--color-text-dark);
    background-color: var(--color-bg-light);
    line-height: 1.6;
    overflow-x: hidden;
}

h1,
h2,
h3,
h4 {
    font-family: var(--font-heading);
    line-height: 1.2;
    color: var(--color-primary);
    font-weight: 700;
}

.container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Buttons */
.cta-button {
    display: inline-block;
    background-color: var(--color-accent);
    color: #fff;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.125rem;
    padding: 16px 32px;
    border-radius: 50px;
    text-decoration: none;
    text-align: center;
    box-shadow: 0 4px 14px rgba(59, 130, 246, 0.4);
    transition: var(--transition);
    border: 2px solid var(--color-accent);
    cursor: pointer;
}

.cta-button:hover {
    background-color: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.6);
}

.cta-button.outline {
    background-color: transparent;
    color: var(--color-accent);
}

.cta-button.outline:hover {
    background-color: var(--color-accent);
    color: #fff;
}

.pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.5);
    }

    70% {
        box-shadow: 0 0 0 15px rgba(59, 130, 246, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(59, 130, 246, 0);
    }
}

/* Section Titles */
.section-title {
    font-size: 2.25rem;
    text-align: center;
    margin-bottom: 16px;
}

.section-title.left {
    text-align: left;
}

.subtitle {
    text-align: center;
    font-size: 1.125rem;
    color: var(--color-text-muted);
    margin-bottom: 48px;
    max-width: 600px;
    margin-inline: auto;
}

/* =========================================================================
   HERO SECTION
   ========================================================================= */
.hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, #172554 100%);
    color: var(--color-bg-white);
    padding: 50px 0 40px;
    position: relative;
    overflow: hidden;
}

.hero h1 {
    color: var(--color-bg-white);
    font-size: 2.25rem;
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 24px;
}

.hero-content {
    display: flex;
    align-items: center;
    gap: 32px;
    position: relative;
    z-index: 2;
}

.hero-text {
    flex: 1;
}

.badge {
    display: inline-block;
    background-color: rgba(255, 255, 255, 0.2);
    color: #fff;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 16px;
    backdrop-filter: blur(4px);
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.hero-image::before {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    background: var(--color-primary-light);
    border-radius: 50%;
    filter: blur(60px);
    z-index: -1;
    opacity: 0.5;
}

.mockup-img {
    width: 100%;
    max-width: 450px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 4px solid rgba(255, 255, 255, 0.1);
}

/* =========================================================================
   PROBLEM SECTION
   ========================================================================= */
.problem-section {
    padding: 50px 0;
    background-color: var(--color-bg-light);
}

.problem-card {
    background-color: var(--color-bg-white);
    padding: 40px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    border-left: 6px solid #ef4444;
    display: flex;
    align-items: flex-start;
    gap: 24px;
    max-width: 800px;
    margin: 0 auto;
    transition: transform 0.3s ease;
}

.problem-card:hover {
    transform: translateY(-5px);
}

.card-icon {
    font-size: 3rem;
    color: #ef4444;
    flex-shrink: 0;
}

.problem-card p {
    font-size: 1.125rem;
}

/* =========================================================================
   SOLUTION SECTION
   ========================================================================= */
.solution-section {
    padding: 60px 0;
    background-color: var(--color-bg-white);
}

.solution-content {
    display: flex;
    align-items: center;
    gap: 40px;
}

.solution-text {
    flex: 1;
}

.solution-text p {
    font-size: 1.125rem;
    margin-bottom: 16px;
    color: var(--color-text-muted);
}

.quote-box {
    background: #eff6ff;
    border-left: 4px solid var(--color-accent);
    padding: 24px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-style: italic;
    font-size: 1.125rem;
    color: var(--color-primary);
    font-weight: 500;
}

.learning-list {
    flex: 1;
    background-color: var(--color-bg-light);
    padding: 48px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.learning-list h3 {
    font-size: 1.5rem;
    margin-bottom: 24px;
}

.learning-list ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.learning-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--color-text-dark);
}

.learning-list i {
    color: var(--color-success);
    font-size: 1.5rem;
    flex-shrink: 0;
}

/* =========================================================================
   AUDIENCE SECTION
   ========================================================================= */
.audience-section {
    padding: 60px 0;
    background-color: #f8fafc;
}

.audience-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-top: 32px;
}

.audience-card {
    background: var(--color-bg-white);
    padding: 32px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}

.audience-card h3 {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.25rem;
    margin-bottom: 24px;
}

.audience-card.positive {
    border-top: 6px solid var(--color-success);
}

.audience-card.positive h3 {
    color: var(--color-success);
}

.audience-card.negative {
    border-top: 6px solid var(--color-error);
}

.audience-card.negative h3 {
    color: var(--color-error);
}

.audience-card ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.audience-card li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    color: var(--color-text-muted);
}

.audience-card.positive i {
    color: var(--color-success);
    font-weight: bold;
}

.audience-card.negative i {
    color: var(--color-error);
    font-weight: bold;
}

/* =========================================================================
   AUTHOR SECTION (Dr. Luca Martins)
   ========================================================================= */
.author-section {
    padding: 80px 0;
    background-color: var(--color-bg-white);
}

.author-content {
    display: flex;
    align-items: center;
    gap: 48px;
    background: var(--color-bg-light);
    border-radius: var(--radius-lg);
    padding: 60px;
    box-shadow: var(--shadow-md);
}

.author-image-wrapper {
    flex-shrink: 0;
    width: 300px;
    height: 400px;
    border-radius: var(--radius-md);
    overflow: hidden;
    background-color: #e5e7eb;
}

.author-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
    background: linear-gradient(to bottom right, #f3f4f6, #e5e7eb);
    padding: 24px;
    text-align: center;
}

.author-placeholder i {
    font-size: 5rem;
    color: #9ca3af;
    margin-bottom: 16px;
}

.author-placeholder span {
    font-size: 0.875rem;
    font-weight: 500;
}

.author-text {
    flex: 1;
}

.author-name {
    font-size: 1.875rem;
    color: var(--color-primary);
    margin-bottom: 4px;
}

.author-role {
    font-size: 1.125rem;
    color: var(--color-accent);
    font-weight: 600;
    margin-bottom: 24px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.author-bio p {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    margin-bottom: 16px;
}

.author-bio strong {
    color: var(--color-text-dark);
}

.medical-disclaimer-box {
    margin-top: 32px;
    padding: 20px;
    background-color: #f0fdf4;
    border-left: 4px solid var(--color-success);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.medical-disclaimer-box i {
    font-size: 1.5rem;
    color: var(--color-accent);
    margin-top: 2px;
}

.medical-disclaimer-box p {
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--color-text-dark);
}


/* =========================================================================
   PRICING SECTION
   ========================================================================= */
.pricing-section {
    padding: 60px 0;
    background: var(--color-bg-white);
}

.pricing-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    max-width: 900px;
    margin: 0 auto;
    align-items: stretch;
}

.pricing-card {
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: var(--radius-lg);
    padding: 40px;
    display: flex;
    flex-direction: column;
    position: relative;
    transition: var(--transition);
}

.pricing-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.pricing-card.premium {
    border: 2px solid var(--color-accent);
    box-shadow: var(--shadow-md);
    background: linear-gradient(to bottom, #fff, #eff6ff);
}

.popular-badge {
    position: absolute;
    top: -16px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-accent);
    color: #fff;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.card-header h3 {
    font-size: 1.5rem;
    text-align: center;
    margin-bottom: 24px;
    color: var(--color-primary);
}

.features {
    list-style: none;
    margin-bottom: 32px;
    flex: 1;
}

.features li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 16px;
    color: var(--color-text-muted);
}

.features i {
    color: var(--color-success);
    margin-top: 4px;
}

.price {
    text-align: center;
    margin-bottom: 32px;
    color: var(--color-text-dark);
}

.price .currency {
    font-size: 1.5rem;
    font-weight: 600;
    vertical-align: top;
}

.price .amount {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1;
    font-family: var(--font-heading);
}

.price .cents {
    font-size: 1.5rem;
    font-weight: 600;
    vertical-align: top;
}

.pricing-card .cta-button {
    width: 100%;
}

/* =========================================================================
   SOCIAL PROOF SECTION
   ========================================================================= */
.social-proof-section {
    padding: 60px 0;
    background-color: var(--color-bg-white);
    text-align: center;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 40px;
    max-width: 1000px;
    margin-inline: auto;
}

.testimonial-slot {
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    height: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.testimonial-slot:hover {
    transform: translateY(-5px);
}

.testimonial-slot i {
    font-size: 3rem;
    margin-bottom: 16px;
    color: #94a3b8;
}

.testimonial-slot img {
    width: 100%;
    height: auto;
    object-fit: contain;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

/* =========================================================================
   GUARANTEE SECTION
   ========================================================================= */
.guarantee-section {
    padding: 50px 0;
    background-color: var(--color-primary);
    color: white;
}

.guarantee-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    background: rgba(255, 255, 255, 0.1);
    padding: 48px;
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
}

.guarantee-icon i {
    font-size: 5rem;
    color: var(--color-accent);
}

.guarantee-text h2 {
    color: white;
    font-size: 2rem;
    margin-bottom: 16px;
}

.guarantee-text p {
    font-size: 1.125rem;
    opacity: 0.9;
    max-width: 600px;
}

/* =========================================================================
   FOOTER SECTION
   ========================================================================= */
.footer-cta {
    background-color: #0f172a;
    color: white;
    text-align: center;
}

.footer-cta .container {
    padding: 60px 24px;
}

.footer-cta h2 {
    color: white;
    font-size: 2.5rem;
    margin-bottom: 24px;
}

.footer-cta p {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: 48px;
    max-width: 600px;
    margin-inline: auto;
}

.footer-bottom {
    background-color: #020617;
    padding: 24px;
    font-size: 0.875rem;
    color: #94a3b8;
}

.footer-bottom p {
    margin-bottom: 8px;
    font-size: 0.875rem;
}

/* =========================================================================
   RESPONSIVE DESIGN
   ========================================================================= */
@media (max-width: 992px) {

    .hero-content,
    .solution-content {
        flex-direction: column;
        text-align: center;
    }

    .section-title.left {
        text-align: center;
    }

    .hero-text {
        order: 1;
    }

    .hero-image {
        order: 2;
        width: 100%;
    }

    .quote-box {
        border-left: none;
        border-top: 4px solid var(--color-primary);
        border-radius: 0 0 var(--radius-sm) var(--radius-sm);
    }
}

@media (max-width: 768px) {
    .section-title {
        font-size: 1.875rem;
    }

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

    .audience-grid,
    .pricing-grid {
        grid-template-columns: 1fr;
    }

    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    .problem-card,
    .guarantee-content,
    .author-content {
        flex-direction: column;
        text-align: center;
    }

    .author-image-wrapper {
        width: 100%;
        max-width: 300px;
        height: 350px;
        margin-bottom: 24px;
    }

    .medical-disclaimer-box {
        text-align: left;
    }

    .problem-card {
        border-left: none;
        border-top: 6px solid var(--color-error);
        align-items: center;
    }

    .cta-button {
        width: 100%;
    }
}