:root {
    --verde-primario: #2ecc71;
    --verde-escuro: #27ae60;
    --verde-claro: #a3d86d;
    --branco: #ffffff;
    --cinza-claro: #f8f9fa;
    --cinza-medio: #e9ecef;
    --cinza-escuro: #6c757d;
    --texto-escuro: #2c3e50;
    --sombra: 0 8px 30px rgba(0,0,0,0.08);
    --sombra-hover: 0 15px 40px rgba(0,0,0,0.12);
    --borda-radius: 16px;
    --transicao: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

body {
    background: linear-gradient(135deg, #f5f7fa 0%, #e4efe9 100%);
    min-height: 100vh;
    color: var(--texto-escuro);
}


.dashboard-header {
    background: var(--verde-primario);
    display: grid;
    grid-template-columns: max-content minmax(0, 1fr) max-content;
    column-gap: 1.25rem;
    align-items: center;
    padding: 1rem 2rem;
    box-shadow: 0 2px 20px rgba(46, 204, 113, 0.2);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    font-weight: 800;
    font-size: 1.5rem;
    color: white;
    white-space: nowrap;
}

.nav-menu {
    min-width: 0;
    flex-wrap: nowrap;
    justify-content: center;
    display: flex;
    gap: clamp(0.6rem, 1.5vw, 1.5rem);
    overflow-x: auto;
    scrollbar-width: auto;
    scrollbar-color: rgb(255 255 255 / 65%) transparent;
}

.nav-menu::-webkit-scrollbar {
    display: block;
    height: 4px;
}

.nav-link {
    flex: 0 0 auto;
    color: rgba(255,255,255,0.9);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transicao);
    padding: 0.5rem 0.75rem;
    border-radius: 8px;
    white-space: nowrap;
}

.nav-link:hover, .nav-link.active {
    background: rgba(255,255,255,0.15);
    transform: translateY(-2px);
}

.user-section {
    min-width: 0;
    display: flex;
    flex-wrap: nowrap;
    align-items: center;
    gap: 0.75rem;
    color: white;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid rgba(255,255,255,0.3);
}

.user-name {
    min-width: 0;
    max-width: min(24vw, 260px);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-weight: 600;
}

.logout-btn {
    background: rgba(255,255,255,0.2);
    border: none;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transicao);
    white-space: nowrap;
}

.logout-btn:hover {
    background: rgba(255,255,255,0.3);
    transform: translateY(-2px);
}


.dashboard-main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}


.welcome-banner {
    background: linear-gradient(135deg, var(--verde-primario), var(--verde-escuro));
    color: white;
    padding: 2rem;
    border-radius: var(--borda-radius);
    margin-bottom: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--sombra);
}

.welcome-content h1 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.welcome-content p {
    opacity: 0.9;
    font-size: 1.1rem;
}

.date-display {
    background: rgba(255,255,255,0.2);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-weight: 600;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.2rem;
}

.current-time {
    font-variant-numeric: tabular-nums;
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.04em;
}


.metrics-section {
    margin-bottom: 2rem;
}

.metrics-section h2 {
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    color: var(--texto-escuro);
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.metric-card {
    background: var(--branco);
    padding: 1.5rem;
    border-radius: var(--borda-radius);
    box-shadow: var(--sombra);
    transition: var(--transicao);
    border-left: 4px solid var(--verde-primario);
}

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

.metric-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.metric-icon {
    font-size: 2rem;
}

.metric-header h3 {
    color: var(--texto-escuro);
    font-size: 1.1rem;
}

.metric-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--verde-primario);
    margin-bottom: 1rem;
}

.metric-progress {
    margin-bottom: 1rem;
}

.progress-bar {
    background: var(--cinza-medio);
    height: 8px;
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.progress-fill {
    height: 100%;
    background: var(--verde-primario);
    border-radius: 4px;
    transition: width 0.5s ease;
}

.progress-text {
    font-size: 0.9rem;
    color: var(--cinza-escuro);
}

.update-btn {
    width: 100%;
    background: var(--verde-primario);
    color: white;
    border: none;
    padding: 0.75rem;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transicao);
}

.update-btn:hover {
    background: var(--verde-escuro);
    transform: translateY(-2px);
}


.actions-section {
    margin-bottom: 2rem;
}

.actions-section h2 {
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    color: var(--texto-escuro);
}

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

.action-btn {
    background: var(--branco);
    border: 2px solid var(--cinza-medio);
    padding: 1.5rem;
    border-radius: var(--borda-radius);
    cursor: pointer;
    transition: var(--transicao);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.action-btn:hover {
    border-color: var(--verde-primario);
    transform: translateY(-3px);
    box-shadow: var(--sombra-hover);
}

.action-icon {
    font-size: 2rem;
}

.action-text {
    font-weight: 600;
    color: var(--texto-escuro);
}

.weekly-section {
    margin-bottom: 2rem;
}

.weekly-section h2 {
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    color: var(--texto-escuro);
}

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

.weekly-card {
    background: var(--branco);
    padding: 1.5rem;
    border-radius: var(--borda-radius);
    box-shadow: var(--sombra);
    text-align: center;
}

.weekly-card h4 {
    color: var(--cinza-escuro);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.weekly-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--verde-primario);
    margin-bottom: 0.5rem;
}

.weekly-trend {
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.25rem 0.5rem;
    border-radius: 12px;
}

.weekly-trend.up {
    background: #d4edda;
    color: #155724;
}

.weekly-trend.down {
    background: #f8d7da;
    color: #721c24;
}


.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(5px);
}

.modal-content {
    background: var(--branco);
    margin: 10% auto;
    padding: 2rem;
    border-radius: var(--borda-radius);
    width: 90%;
    max-width: 400px;
    box-shadow: var(--sombra-hover);
    position: relative;
}

.close-btn {
    position: absolute;
    right: 1rem;
    top: 1rem;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--cinza-escuro);
}

.close-btn:hover {
    color: var(--texto-escuro);
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--texto-escuro);
}

.form-group input {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--cinza-medio);
    border-radius: 8px;
    font-size: 1rem;
    transition: var(--transicao);
}

.form-group input:focus {
    outline: none;
    border-color: var(--verde-primario);
}

#metricUnit {
    margin-left: 0.5rem;
    color: var(--cinza-escuro);
}

.water-quick-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--texto-escuro);
}

.water-quick-buttons {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
}

.water-quick-buttons button {
    border: 1px solid var(--verde-primario);
    border-radius: 8px;
    padding: 0.65rem 0.35rem;
    background: #effbf4;
    color: var(--verde-escuro);
    font-weight: 600;
    cursor: pointer;
}

.water-quick-buttons button:hover {
    background: var(--verde-primario);
    color: var(--branco);
}

.submit-btn {
    width: 100%;
    background: var(--verde-primario);
    color: white;
    border: none;
    padding: 1rem;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transicao);
}

.submit-btn:hover {
    background: var(--verde-escuro);
}


.dashboard-footer {
    background: var(--verde-primario);
    color: white;
    text-align: center;
    padding: 1.5rem;
    margin-top: 2rem;
}


@media (max-width: 768px) {
    .dashboard-header {
        display: flex;
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
    }

    .nav-menu {
        gap: 1rem;
    }

    .welcome-banner {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

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

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

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

@media (max-width: 480px) {
    .actions-grid {
        grid-template-columns: 1fr;
    }

    .weekly-stats {
        grid-template-columns: 1fr;
    }
}
.health-footer {
    background: #ffffff;
    color: #2d3748;
    padding: 20px 0 10px;
    margin-top: 40px;
    border-top: 1px solid #e2e8f0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: 0.8em;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.footer-section h3 {
    color: #22c55e;
    margin: 0;
    font-size: 2em;
    font-weight: 600;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    gap: 25px;
}

.footer-links li {
    margin: 0;
}

.footer-links a {
    color: #22c55e;
    text-decoration: none;
    transition: all 0.2s ease;
    font-size: 1.5em;
    font-weight: 500;
}

.footer-links a:hover {
    color: #16a34a;
    text-decoration: underline;
}

.footer-bottom {
    max-width: 1200px;
    margin: 15px auto 0;
    padding: 10px 20px 0;
    border-top: 1px solid #e2e8f0;
    text-align: center;
    color: #64748b;
    font-size: 1em;
}

@media (max-width: 768px) {
    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }
    
    .footer-links {
        gap: 20px;
    }
    
    .health-footer {
        padding: 15px 0 8px;
    }
}