/* Reset e configurações básicas */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Open Sans', Arial, sans-serif;
    line-height: 1.6;
    color: #fff;
    overflow-x: hidden;
}

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

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all 0.3s ease;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo-link {
    color: #fff;
    text-decoration: none;
    font-weight: 700;
    font-size: 18px;
    transition: color 0.3s ease;
}

.logo-link:hover {
    color: #e74c3c;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-link {
    color: #fff;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s ease;
    padding: 8px 15px;
    border-radius: 5px;
}

.nav-link:hover {
    background: rgba(231, 76, 60, 0.2);
    color: #e74c3c;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: #fff;
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), url('medicosdq1122.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    padding: 0 20px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 30px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8);
    line-height: 1.2;
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: 40px;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.8);
    line-height: 1.6;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.cta-button {
    display: inline-block;
    background: #e74c3c;
    color: #fff;
    padding: 18px 35px;
    text-decoration: none;
    font-weight: 700;
    font-size: 16px;
    border-radius: 8px;
    transition: all 0.3s ease;
    text-transform: uppercase;
    box-shadow: 0 4px 15px rgba(231, 76, 60, 0.3);
}

.cta-button:hover {
    background: #c0392b;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(231, 76, 60, 0.4);
}

/* Footer */
.footer {
    background: rgba(0, 0, 0, 0.9);
    padding: 40px 0 20px;
    text-align: center;
}

.footer-nav {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 30px;
    margin-bottom: 30px;
}

.footer-link {
    color: #fff;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s ease;
    padding: 8px 15px;
    border-radius: 5px;
}

.footer-link:hover {
    background: rgba(231, 76, 60, 0.2);
    color: #e74c3c;
}

.footer-credits {
    color: #ccc;
    font-size: 14px;
}

.credit-link {
    color: #e74c3c;
    text-decoration: none;
    transition: color 0.3s ease;
}

.credit-link:hover {
    color: #c0392b;
}

/* WhatsApp Float Button */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    left: 30px;
    z-index: 1000;
}

.whatsapp-link {
    display: block;
    width: 60px;
    height: 60px;
    background: #25d366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3);
    transition: all 0.3s ease;
    animation: pulse 2s infinite;
}

.whatsapp-link:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
}

.whatsapp-icon {
    width: 35px;
    height: 35px;
    filter: brightness(0) invert(1);
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(37, 211, 102, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
    }
}

/* Responsividade */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: rgba(0, 0, 0, 0.95);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding-top: 50px;
        transition: left 0.3s ease;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .cta-button {
        padding: 15px 25px;
        font-size: 14px;
    }

    .footer-nav {
        flex-direction: column;
        gap: 15px;
    }

    .whatsapp-float {
        bottom: 20px;
        left: 20px;
    }

    .whatsapp-link {
        width: 50px;
        height: 50px;
    }

    .whatsapp-icon {
        width: 28px;
        height: 28px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-description {
        font-size: 0.9rem;
    }

    .container {
        padding: 0 15px;
    }

    .header-content {
        padding: 12px 0;
    }

    .logo-link {
        font-size: 16px;
    }
}

/* Melhorias de performance e acessibilidade */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Focus states para acessibilidade */
.nav-link:focus,
.footer-link:focus,
.cta-button:focus,
.whatsapp-link:focus {
    outline: 2px solid #e74c3c;
    outline-offset: 2px;
}