/* ================================================
   REHABIALTURA - Clean Light Theme Stylesheet
   ================================================ */

:root {
    /* Colors */
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --accent: #0ea5e9;

    /* Backgrounds */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;

    /* Text */
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;

    /* Borders & Shadows */
    --border: #e2e8f0;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.08);

    /* Layout */
    --container-width: 1280px;
    --section-padding: 6rem;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Particle Canvas */
#particle-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

/* ===== UTILITIES ===== */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
}

.grid {
    display: grid;
}

.flex {
    display: flex;
}

.justify-between {
    justify-content: space-between;
}

.items-center {
    align-items: center;
}

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

/* ===== HEADER ===== */
.header {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.nav-logo img {
    height: 45px;
    filter: brightness(0.2);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2.5rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.3s ease;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width 0.3s ease;
}

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

.nav-links a:hover::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

/* ===== HERO SECTION ===== */
.hero {
    padding: 8rem 0 6rem;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.92) 0%, rgba(240, 249, 255, 0.88) 50%, rgba(224, 242, 254, 0.82) 100%),
        url('./assets/hero-verticales.png');
    background-size: cover;
    background-position: center;
    z-index: 2;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to right, rgba(255, 255, 255, 0.96) 0%, rgba(255, 255, 255, 0.8) 65%, transparent 100%);
    z-index: 1;
}

.hero-content {
    max-width: 800px;
    position: relative;
    z-index: 10;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: white;
    border: 1px solid var(--border);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    margin-bottom: 2rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.status-dot {
    width: 8px;
    height: 8px;
    background: #10b981;
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    line-height: 1.1;
    font-weight: 800;
    margin-bottom: 2rem;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

.highlight-box {
    background: linear-gradient(135deg, #2563eb 0%, #0ea5e9 100%);
    color: white;
    padding: 0.2em 0.5em;
    border-radius: 8px;
    display: inline-block;
    box-shadow: 0 4px 20px rgba(37, 99, 235, 0.25);
}

.hero-text {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    line-height: 1.7;
}

.checklist {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    margin-top: 2rem;
}

.check-item {
    background: white;
    border: 1px solid var(--border);
    padding: 0.75rem 1.25rem;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    box-shadow: var(--shadow-sm);
}

.icon-check {
    color: var(--primary);
    margin-right: 0.5rem;
    font-weight: bold;
}

.system-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

/* ===== SECTIONS ===== */
.section {
    padding: var(--section-padding) 0;
    position: relative;
    z-index: 2;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 800;
    margin-bottom: 1rem;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.intro-text {
    text-align: center;
    margin-bottom: 3rem;
}

/* ===== FEATURE CARDS ===== */
.features-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: white;
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem;
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    cursor: pointer;
    text-decoration: none;
    display: block;
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, #2563eb 0%, #0ea5e9 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: white;
    transition: transform 0.3s ease;
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===== BUDGET CARDS ===== */
.budget-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.budget-card {
    background: white;
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem;
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    cursor: pointer;
    text-decoration: none;
    display: flex;
    flex-direction: column;
    height: 100%;
    box-shadow: var(--shadow-sm);
}

.budget-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.budget-badge {
    background: linear-gradient(135deg, #2563eb 0%, #0ea5e9 100%);
    color: white;
    padding: 0.4rem 0.9rem;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    align-self: flex-start;
    margin-bottom: 1.25rem;
    text-transform: uppercase;
}

.budget-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
    height: 3.6rem;
    line-height: 1.2;
}

.budget-card p {
    margin-bottom: 1.5rem;
    line-height: 1.6;
    height: 6rem;
    overflow: hidden;
    color: var(--text-secondary);
    flex-grow: 1;
}

.budget-meta {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: auto;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}

.budget-price {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    margin-right: auto;
}

.budget-status {
    background: #f59e0b;
    color: white;
    padding: 0.5rem 1.25rem;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 600;
}

/* ===== TESTIMONIALS ===== */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.testimonial-slider {
    position: relative;
    min-height: 300px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 3rem;
}

.testimonial-card {
    background: white;
    border: 1px solid var(--border);
    padding: 2.5rem;
    border-radius: 16px;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-md);
    height: 100%;
}

.quote {
    font-size: 1.125rem;
    line-height: 1.8;
    margin-bottom: 2rem;
    color: var(--text-primary);
    font-style: italic;
    flex-grow: 1;
}

.author {
    margin-top: auto;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}

.author strong {
    color: var(--text-primary);
    font-weight: 600;
    display: block;
    margin-bottom: 0.25rem;
}

.text-sm {
    font-size: 0.875rem;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: 4rem 0 2rem;
    margin-top: 6rem;
}

.footer-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.footer-col h3 {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 1rem;
    font-size: 1.125rem;
}

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

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.copyright {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }

    .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        padding: 1rem;
        border-top: 1px solid var(--border);
        box-shadow: var(--shadow-md);
    }

    .hero {
        padding: 4rem 0 3rem;
    }

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

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

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

    .section {
        padding: 3rem 0;
    }
}