/* ============================================
   LANDING PAGE PERSONAL TRAINER
   Design: Dark Premium Fitness with Neon Accents
   ============================================ */

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

:root {
    --primary-color: #ccff00;
    --primary-dark: #b3e600;
    --bg-color: #0a0a0a;
    --bg-secondary: #151515;
    --bg-tertiary: #1a1a1a;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --border-color: #333333;
    --card-bg: #151515;
    --transition: all 0.3s ease;
}

/* TYPOGRAPHY */
html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Montserrat', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Bebas Neue', cursive;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 900;
}

h1 { font-size: 3.5rem; line-height: 1; }
h2 { font-size: 3rem; }
h3 { font-size: 1.5rem; }

p {
    font-size: 1rem;
    color: var(--text-secondary);
}

/* CONTAINER */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }
}

/* GRID SYSTEM */
.grid {
    display: grid;
    gap: 24px;
    margin-top: 40px;
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

@media (max-width: 768px) {
    .grid-4,
    .grid-3 {
        grid-template-columns: 1fr;
    }
}

/* BUTTONS */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    border: none;
    border-radius: 8px;
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn-primary {
    background-color: var(--primary-color);
    color: #000;
    box-shadow: 0 0 20px rgba(204, 255, 0, 0.3);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: scale(1.05);
    box-shadow: 0 0 30px rgba(204, 255, 0, 0.5);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-outline:hover {
    background-color: rgba(204, 255, 0, 0.1);
    transform: scale(1.05);
}

.btn-large {
    padding: 18px 48px;
    font-size: 1.1rem;
    width: 100%;
    max-width: 500px;
}

@media (max-width: 768px) {
    .btn {
        padding: 12px 24px;
        font-size: 0.9rem;
    }
    
    .btn-large {
        padding: 14px 32px;
        font-size: 1rem;
    }
}

/* HERO SECTION */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-image: url('../images/hero-background.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.7) 0%, rgba(0, 0, 0, 0.5) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: left;
    max-width: 600px;
}

.hero-title {
    color: var(--primary-color);
    margin-bottom: 24px;
    font-size: 4rem;
}

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--text-primary);
    margin-bottom: 32px;
    font-weight: 300;
}

@media (max-width: 768px) {
    .hero {
        min-height: 80vh;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
}

/* SECTIONS */
.section {
    padding: 50px 0;
    border-top: 1px solid var(--border-color);
}

.section-title {
    text-align: center;
    color: var(--primary-color);
    margin-bottom: 40px;
    font-size: 3rem;
}

@media (max-width: 768px) {
    .section {
        padding: 40px 0;
    }
    
    .section-title {
        font-size: 2rem;
        margin-bottom: 30px;
    }
}

/* PROBLEMA SECTION */
.problema-section {
    background-color: var(--bg-color);
}

.card-problema {
    background-color: var(--card-bg);
    border-left: 4px solid var(--primary-color);
    padding: 30px;
    border-radius: 10px;
    transition: var(--transition);
}

.card-problema:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(204, 255, 0, 0.1);
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.card-problema h3 {
    color: var(--text-primary);
    margin-bottom: 12px;
    font-size: 1.3rem;
}

.card-problema p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* SOLUÇÃO SECTION */
.solucao-section {
    background-color: var(--bg-secondary);
}

.solucao-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 50px;
}

.solucao-row-reverse {
    direction: rtl;
}

.solucao-row-reverse > * {
    direction: ltr;
}

.solucao-image img {
    width: 100%;
    border-radius: 15px;
    box-shadow: 0 20px 60px rgba(204, 255, 0, 0.15);
}

.solucao-text h3 {
    color: var(--primary-color);
    margin-bottom: 24px;
    font-size: 2rem;
}

.benefits-list {
    list-style: none;
}

.benefits-list li {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 16px;
    color: var(--text-secondary);
}

.check-icon {
    color: var(--primary-color);
    flex-shrink: 0;
    margin-top: 2px;
}

@media (max-width: 768px) {
    .solucao-row,
    .solucao-row-reverse {
        grid-template-columns: 1fr;
        gap: 40px;
        direction: ltr;
        margin-bottom: 40px;
    }
    
    .solucao-row-reverse > * {
        direction: ltr;
    }
    
    .solucao-text h3 {
        font-size: 1.5rem;
    }
}

/* BENEFÍCIOS SECTION */
.beneficios-section {
    background-color: var(--bg-color);
}

.card-beneficio {
    background-color: var(--card-bg);
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    transition: var(--transition);
}

.card-beneficio:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(204, 255, 0, 0.1);
}

.beneficio-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.card-beneficio h3 {
    color: var(--text-primary);
    margin-bottom: 12px;
}

.card-beneficio p {
    font-size: 0.95rem;
}

/* MODELOS SECTION */
.modelos-section {
    background-color: var(--bg-secondary);
}

.card-modelo {
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    overflow: hidden;
    transition: var(--transition);
}

.card-modelo:hover {
    border-color: var(--primary-color);
    box-shadow: 0 0 20px rgba(204, 255, 0, 0.2);
}

.modelo-preview {
    background: linear-gradient(135deg, rgba(204, 255, 0, 0.1) 0%, rgba(204, 255, 0, 0.05) 100%);
    height: 220px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid var(--border-color);
    overflow: hidden;
    padding: 15px;
}

.modelo-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: var(--transition);
}

.card-modelo:hover .modelo-img {
    transform: scale(1.1);
}

.modelo-number {
    font-size: 3rem;
    font-weight: 900;
    color: var(--primary-color);
    font-family: 'Bebas Neue', cursive;
}

.modelo-preview p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 8px;
}

.modelo-content {
    padding: 24px;
}

.modelo-content h3 {
    color: var(--text-primary);
    margin-bottom: 16px;
    font-size: 1.2rem;
}

.modelo-content .btn {
    display: block;
    margin-bottom: 10px;
    width: 100%;
}

/* COMO USAR SECTION */
.como-usar-section {
    background-color: var(--bg-color);
}

.card-uso {
    background-color: var(--card-bg);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    transition: var(--transition);
}

.card-uso:hover {
    transform: translateY(-10px);
}

.uso-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.card-uso h3 {
    color: var(--text-primary);
    margin-bottom: 12px;
    font-size: 1.1rem;
}

.card-uso p {
    font-size: 0.9rem;
}

/* DEPOIMENTOS SECTION */
.depoimentos-section {
    background-color: var(--bg-secondary);
}

.card-depoimento {
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    padding: 32px;
    border-radius: 10px;
    transition: var(--transition);
}

.card-depoimento:hover {
    border-color: var(--primary-color);
}

.stars {
    color: var(--primary-color);
    font-size: 1.2rem;
    margin-bottom: 16px;
}

.depoimento-text {
    font-style: italic;
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-size: 0.95rem;
}

.depoimento-name {
    color: var(--text-primary);
    font-weight: 700;
    margin-bottom: 4px;
}

.depoimento-role {
    color: var(--primary-color);
    font-size: 0.85rem;
}

/* PREÇO SECTION */
.preco-section {
    background-color: var(--bg-color);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    padding: 50px 0;
}

.preco-box {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    border: 2px solid var(--primary-color);
    border-radius: 20px;
    padding: 60px 40px;
    text-align: center;
    max-width: 600px;
    box-shadow: 0 0 40px rgba(204, 255, 0, 0.2);
}

.preco-box h3 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.preco-valor {
    font-size: 4rem;
    font-weight: 900;
    color: var(--primary-color);
    font-family: 'Bebas Neue', cursive;
    margin-bottom: 8px;
}

.preco-parcelamento {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.preco-box .btn {
    margin: 0 auto;
}

@media (max-width: 768px) {
    .preco-section {
        min-height: auto;
        padding: 40px 0;
    }
    
    .preco-box {
        padding: 40px 24px;
    }
    
    .preco-valor {
        font-size: 2.5rem;
    }
}

/* FOOTER CTA SECTION */
.footer-cta-section {
    background-color: var(--bg-secondary);
    text-align: center;
}

.footer-cta-section h2 {
    color: var(--text-primary);
    margin-bottom: 16px;
    font-size: 2.5rem;
}

.footer-cta-section p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.footer-cta-section .btn {
    margin: 0 auto;
}

@media (max-width: 768px) {
    .footer-cta-section h2 {
        font-size: 1.8rem;
    }
    
    .footer-cta-section p {
        font-size: 1rem;
    }
}

/* RESPONSIVE ADJUSTMENTS */
@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.8rem; }
    h3 { font-size: 1.2rem; }
    
    .section {
        padding: 40px 0;
    }
    
    .card-modelo,
    .card-beneficio,
    .card-problema,
    .card-uso,
    .card-depoimento {
        padding: 20px;
    }
    
    .benefits-list li {
        gap: 12px;
    }
}

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

.card {
    animation: fadeIn 0.6s ease-out;
}

/* UTILITY CLASSES */
.text-center {
    text-align: center;
}

.mt-20 {
    margin-top: 20px;
}

.mb-20 {
    margin-bottom: 20px;
}