/* ===================================
   Protocolo de Saúde - CSS Styles
   Mobile-first, pure CSS, no deps
   =================================== */

/* CSS Variables */
:root {
    /* Colors */
    --color-primary: #3ECFA7;
    --color-primary-dark: #2BA883;
    --color-secondary: #2B9EB3;
    --color-accent: #D4A853;
    --color-accent-dark: #B8923F;
    --color-text: #2D3436;
    --color-text-light: #636E72;
    --color-bg: #FAFAFA;
    --color-bg-alt: #E8F8F5;
    --color-white: #FFFFFF;
    --color-shadow: rgba(45, 52, 54, 0.1);
    --color-shadow-dark: rgba(45, 52, 54, 0.2);

    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.5rem;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;

    /* Layout */
    --container-max: 1200px;
    --container-padding: 1rem;
    --border-radius: 8px;
    --border-radius-lg: 16px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
}

/* Reset & Base */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* Container */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* ===================================
   HEADER
   =================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--color-white);
    z-index: 1000;
    transition: box-shadow var(--transition-base);
}

.header.scrolled {
    box-shadow: 0 2px 20px var(--color-shadow);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-primary);
    font-weight: 700;
    font-size: var(--font-size-lg);
}

.logo-icon {
    width: 36px;
    height: 36px;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.logo-accent {
    color: var(--color-secondary);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

/* Navigation */
.nav {
    display: none;
}

.nav-list {
    display: flex;
    gap: var(--spacing-xl);
}

.nav-link {
    color: var(--color-text-light);
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width var(--transition-fast);
}

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

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

/* CTA Button */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-sm);
    font-weight: 600;
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn-icon {
    width: 20px;
    height: 20px;
}

.btn-whatsapp-header {
    background: var(--color-primary);
    color: var(--color-white);
}

.btn-whatsapp-header:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
}

.btn-primary {
    background: var(--color-accent);
    color: var(--color-white);
}

.btn-primary:hover {
    background: var(--color-accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(212, 168, 83, 0.4);
}

.btn-secondary {
    background: var(--color-primary);
    color: var(--color-white);
    width: 100%;
}

.btn-secondary:hover {
    background: var(--color-primary-dark);
}

.btn-large {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-base);
}

/* Menu Toggle */
.menu-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 30px;
    height: 30px;
    padding: 0;
}

.menu-toggle span {
    display: block;
    width: 100%;
    height: 3px;
    background: var(--color-text);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.menu-toggle.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

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

.menu-toggle.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* Mobile Navigation */
.nav.active {
    display: block;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--color-white);
    padding: var(--spacing-lg);
    box-shadow: 0 4px 20px var(--color-shadow);
}

.nav.active .nav-list {
    flex-direction: column;
    gap: var(--spacing-md);
}

.nav.active .nav-link {
    display: block;
    padding: var(--spacing-sm) 0;
    font-size: var(--font-size-base);
}

/* ===================================
   HERO SECTION
   =================================== */
.hero {
    position: relative;
    padding: 100px 0 var(--spacing-4xl);
    background: linear-gradient(135deg, var(--color-bg-alt) 0%, var(--color-white) 100%);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    opacity: 0.1;
    border-radius: 0 0 0 50%;
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2xl);
    align-items: center;
}

.hero-text {
    text-align: center;
}

.hero-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    line-height: 1.3;
    color: var(--color-text);
    margin-bottom: var(--spacing-lg);
}

.hero-subtitle {
    font-size: var(--font-size-base);
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: var(--spacing-xl);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.hero-image {
    width: 100%;
    max-width: 400px;
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius-lg);
    box-shadow: 0 20px 60px var(--color-shadow-dark);
}

/* ===================================
   SECTIONS COMMON
   =================================== */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-tag {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--color-bg-alt);
    color: var(--color-primary);
    font-size: var(--font-size-sm);
    font-weight: 600;
    border-radius: 20px;
    margin-bottom: var(--spacing-md);
}

.section-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    font-size: var(--font-size-base);
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* ===================================
   PROTOCOLO SECTION
   =================================== */
.protocolo {
    padding: var(--spacing-4xl) 0;
    background: var(--color-white);
}

.protocolo-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

.protocolo-card {
    background: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    border: 2px solid var(--color-bg);
    text-align: center;
    transition: all var(--transition-base);
    opacity: 0;
    transform: translateY(20px);
}

.protocolo-card.animated {
    opacity: 1;
    transform: translateY(0);
}

.protocolo-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: 0 10px 40px var(--color-shadow);
}

.protocolo-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-lg);
    color: var(--color-primary);
}

.protocolo-icon svg {
    width: 100%;
    height: 100%;
}

.protocolo-card-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.protocolo-card-text {
    font-size: var(--font-size-base);
    color: var(--color-text-light);
    line-height: 1.7;
}

/* ===================================
   PRODUTOS SECTION
   =================================== */
.produtos {
    padding: var(--spacing-4xl) 0;
    background: var(--color-bg);
}

.produtos-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

.produto-card {
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: 0 4px 20px var(--color-shadow);
    transition: all var(--transition-base);
    opacity: 0;
    transform: translateY(20px);
}

.produto-card.animated {
    opacity: 1;
    transform: translateY(0);
}

.produto-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px var(--color-shadow-dark);
}

.produto-image {
    position: relative;
    aspect-ratio: 4/3;
    overflow: hidden;
}

.produto-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.produto-card:hover .produto-image img {
    transform: scale(1.05);
}

.produto-badge {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--color-accent);
    color: var(--color-white);
    font-size: var(--font-size-xs);
    font-weight: 700;
    border-radius: 20px;
    text-transform: uppercase;
}

.produto-content {
    padding: var(--spacing-xl);
}

.produto-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.produto-desc {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.produto-benefits {
    margin-bottom: var(--spacing-lg);
}

.produto-benefits li {
    position: relative;
    padding-left: var(--spacing-lg);
    font-size: var(--font-size-sm);
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
}

.produto-benefits li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 700;
}

/* ===================================
   DEPOIMENTOS SECTION
   =================================== */
.depoimentos {
    padding: var(--spacing-4xl) 0;
    background: var(--color-bg-alt);
}

.depoimentos-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

.depoimento-card {
    background: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 4px 20px var(--color-shadow);
    transition: all var(--transition-base);
    opacity: 0;
    transform: translateY(20px);
}

.depoimento-card.animated {
    opacity: 1;
    transform: translateY(0);
}

.depoimento-card:hover {
    transform: translateY(-4px);
}

.depoimento-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.depoimento-avatar {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    object-fit: cover;
}

.depoimento-info {
    flex: 1;
}

.depoimento-name {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-text);
}

.depoimento-location {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

.depoimento-rating {
    display: flex;
    gap: 2px;
    margin-bottom: var(--spacing-md);
}

.depoimento-rating svg {
    width: 18px;
    height: 18px;
    color: var(--color-accent);
}

.depoimento-text {
    font-size: var(--font-size-base);
    color: var(--color-text);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
    font-style: italic;
}

.depoimento-result {
    display: flex;
    gap: var(--spacing-sm);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-bg);
}

.depoimento-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

.depoimento-value {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-primary);
}

/* ===================================
   CTA SECTION
   =================================== */
.cta-section {
    padding: var(--spacing-4xl) 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
}

.cta-content {
    text-align: center;
    color: var(--color-white);
}

.cta-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.cta-text {
    font-size: var(--font-size-base);
    opacity: 0.9;
    margin-bottom: var(--spacing-xl);
}

.cta-section .btn-primary {
    background: var(--color-white);
    color: var(--color-primary);
}

.cta-section .btn-primary:hover {
    background: var(--color-bg);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

.cta-section .btn-icon {
    fill: var(--color-primary);
}

/* ===================================
   FOOTER
   =================================== */
.footer {
    background: var(--color-text);
    color: var(--color-white);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer-top {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: var(--spacing-xl);
}

.footer-brand .logo {
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
}

.footer-brand .logo-accent {
    color: var(--color-primary);
}

.footer-tagline {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.7);
}

.footer-heading {
    font-size: var(--font-size-base);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--color-white);
}

.footer-list li {
    margin-bottom: var(--spacing-sm);
}

.footer-list a,
.footer-list span {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.7);
    transition: color var(--transition-fast);
}

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

.footer-disclaimer {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-xl);
}

.disclaimer-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    color: var(--color-accent);
}

.footer-disclaimer p {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

.footer-bottom {
    text-align: center;
}

.footer-bottom p {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.5);
}

/* ===================================
   WHATSAPP FLOAT BUTTON
   =================================== */
.whatsapp-float {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    width: 60px;
    height: 60px;
    background: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    z-index: 999;
    transition: all var(--transition-base);
    animation: pulse 2s infinite;
}

.whatsapp-float svg {
    width: 32px;
    height: 32px;
    fill: var(--color-white);
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(37, 211, 102, 0.5);
}

.whatsapp-tooltip {
    position: absolute;
    right: 70px;
    background: var(--color-white);
    color: var(--color-text);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    font-size: var(--font-size-sm);
    font-weight: 500;
    white-space: nowrap;
    box-shadow: 0 2px 10px var(--color-shadow);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-fast);
}

.whatsapp-float:hover .whatsapp-tooltip {
    opacity: 1;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.4);
    }
    70% {
        box-shadow: 0 0 0 15px rgba(37, 211, 102, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
    }
}

/* ===================================
   MEDIA QUERIES
   =================================== */

/* Tablet */
@media (min-width: 768px) {
    :root {
        --container-padding: 2rem;
    }

    .hero-title {
        font-size: var(--font-size-3xl);
    }

    .hero-content {
        flex-direction: row;
        text-align: left;
    }

    .hero-text {
        text-align: left;
        flex: 1;
    }

    .hero-subtitle {
        margin-left: 0;
        margin-right: 0;
    }

    .hero-image {
        flex: 1;
        max-width: 50%;
    }

    .protocolo-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .produtos-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .produtos-grid .produto-card:last-child {
        grid-column: span 2;
        max-width: calc(50% - var(--spacing-xl) / 2);
        margin: 0 auto;
    }

    .depoimentos-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .depoimentos-grid .depoimento-card:last-child {
        grid-column: span 2;
        max-width: calc(50% - var(--spacing-xl) / 2);
        margin: 0 auto;
    }

    .footer-top {
        grid-template-columns: 2fr repeat(3, 1fr);
    }
}

/* Desktop */
@media (min-width: 1024px) {
    .menu-toggle {
        display: none;
    }

    .nav {
        display: block;
    }

    .hero-title {
        font-size: var(--font-size-4xl);
    }

    .produtos-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .produtos-grid .produto-card:last-child {
        grid-column: auto;
        max-width: none;
        margin: 0;
    }

    .depoimentos-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .depoimentos-grid .depoimento-card:last-child {
        grid-column: auto;
        max-width: none;
        margin: 0;
    }

    .cta-title {
        font-size: var(--font-size-3xl);
    }
}