/* Design System Premium - NefroSystem */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

:root {
    --bg-main: #f4f8fb;
    --bg-panel: rgba(255, 255, 255, 0.84);
    --primary-color: #0f7f95; /* Customizável via JS */
    --primary-dark: #0b5f70;
    --text-primary: #172033;
    --text-secondary: #64748b;
    --glass-border: rgba(216, 227, 234, 0.92);
    --shadow-soft: 0 18px 48px -38px rgba(15, 23, 42, 0.32);
    --spacing-base: 24px;
}

body {
    font-family: 'Inter', sans-serif;
    background:
        radial-gradient(circle at 8% 4%, rgba(15, 127, 149, 0.10), transparent 28%),
        radial-gradient(circle at 92% 0%, rgba(23, 32, 51, 0.08), transparent 30%),
        linear-gradient(135deg, #f8fbfc 0%, var(--bg-main) 46%, #eef6f8 100%);
    color: var(--text-primary);
    margin: 0;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    letter-spacing: 0;
}

.glass-card,
.topbar {
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

/* Panels e Cards Translúcidos */
.glass-card {
    background: var(--bg-panel);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    box-shadow: var(--shadow-soft);
    padding: var(--spacing-base);
    transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.glass-card:hover {
    transform: translateY(-2px);
    border-color: rgba(15, 127, 149, 0.28);
    box-shadow: 0 24px 54px -40px rgba(15, 23, 42, 0.42);
}

/* Topbar e Logo */
.topbar {
    min-height: 72px;
    background: rgba(255, 255, 255, 0.82);
    border-bottom: 1px solid var(--glass-border);
    padding: 0 clamp(16px, 3vw, 40px);
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 18px 46px -44px rgba(15, 23, 42, 0.4);
}

.client-logo {
    height: 40px;
    width: auto;
    object-fit: contain;
}

/* Microinterações */
.btn-premium {
    min-height: 42px;
    padding: 10px 18px;
    border-radius: 14px;
    transition: transform 0.18s ease, box-shadow 0.18s ease, background-color 0.18s ease;
    font-weight: 700;
}

.btn-premium:hover {
    filter: brightness(1.04);
    transform: translateY(-1px);
    box-shadow: 0 18px 34px -26px rgba(15, 127, 149, 0.45);
}

.btn-premium:active {
    transform: translateY(0);
}