/**
 * CareBridge RCM Solutions - Main Stylesheet (R1 RCM Design Architecture)
 */

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    color: var(--color-text-main);
    background-color: var(--color-white);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 20px;
    background: var(--color-black);
    color: var(--color-white);
    padding: 8px 16px;
    z-index: 10000;
    transition: top 0.2s ease;
    font-size: 13px;
    border-radius: var(--radius-sm);
    text-decoration: none;
}
.skip-link:focus {
    top: 20px;
}

/* Container */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--space-xl);
    padding-right: var(--space-xl);
}
.container-narrow {
    max-width: 1000px;
}

/* Typography (R1-Inspired Clean Hierarchy) */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--color-text-main);
    line-height: 1.12;
    letter-spacing: -0.025em;
}

.hero-headline {
    font-size: clamp(44px, 5.8vw, 84px);
    line-height: 1.05;
    letter-spacing: -0.035em;
    font-weight: 800;
    color: var(--color-text-main);
    margin-bottom: var(--space-lg);
}

.section-headline {
    font-size: clamp(34px, 3.8vw, 54px);
    line-height: 1.1;
    letter-spacing: -0.03em;
    font-weight: 700;
    margin-bottom: var(--space-lg);
}

.lead-subtext {
    font-size: clamp(18px, 1.8vw, 22px);
    line-height: 1.55;
    color: var(--color-text-muted);
    font-weight: 400;
}

/* R1 Category Pill / Top Badge */
.pill-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: var(--color-gray-bg);
    border: 1px solid var(--color-border);
    padding: 6px 16px;
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text-main);
    text-decoration: none;
    margin-bottom: var(--space-xl);
    transition: all var(--transition-fast);
}
.pill-badge:hover {
    border-color: var(--color-blue);
    background-color: #F0F6FF;
    color: var(--color-blue);
}

/* Buttons (R1 Design: Clean Solid Pills & Ghost Borders) */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--font-heading);
    font-size: 15px;
    font-weight: 600;
    padding: 14px 28px;
    border-radius: var(--radius-full);
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 1px solid transparent;
    white-space: nowrap;
}

.btn-primary {
    background-color: var(--color-blue);
    color: var(--color-white);
    border-color: var(--color-blue);
}
.btn-primary:hover {
    background-color: var(--color-blue-dark);
    border-color: var(--color-blue-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-glow);
}

.btn-black {
    background-color: var(--color-black);
    color: var(--color-white);
    border-color: var(--color-black);
}
.btn-black:hover {
    background-color: #222733;
    transform: translateY(-1px);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-text-main);
    border-color: var(--color-border);
}
.btn-outline:hover {
    border-color: var(--color-text-main);
    background-color: var(--color-offwhite);
}

.btn-outline-white {
    background-color: transparent;
    color: var(--color-white);
    border-color: var(--color-border-dark);
}
.btn-outline-white:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: var(--color-white);
}

.btn-sm {
    padding: 9px 18px;
    font-size: 13px;
}

/* Grid Layouts */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3xl);
}
.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-2xl);
}
.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
}

/* Form Controls & Inputs (Ultra-Clean Modern Corporate) */
.form-group {
    margin-bottom: 18px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    width: 100%;
}
.form-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-dark-navy);
    letter-spacing: 0.01em;
}
.form-control {
    width: 100%;
    height: 48px;
    padding: 10px 16px;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 14px;
    color: var(--color-text-main);
    background-color: #FFFFFF;
    transition: all var(--transition-fast);
    outline: none;
    box-sizing: border-box;
}
.form-control::placeholder {
    color: #94A3B8;
    font-size: 13px;
}
.form-control:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(11, 79, 156, 0.12);
    background-color: #FFFFFF;
}
select.form-control {
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%230B4F9C' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    background-size: 16px;
    padding-right: 40px;
    cursor: pointer;
}
textarea.form-control {
    height: auto;
    min-height: 120px;
    resize: vertical;
    line-height: 1.6;
    padding: 14px 16px;
}

/* Sections & Spacing */
.section {
    padding-top: 90px;
    padding-bottom: 90px;
    position: relative;
}
.section-sm {
    padding-top: 48px;
    padding-bottom: 48px;
}
.bg-offwhite {
    background-color: var(--color-offwhite);
}
.bg-dark {
    background-color: var(--color-black);
    color: var(--color-white);
}
.bg-dark h1, .bg-dark h2, .bg-dark h3 {
    color: var(--color-white);
}

@media (max-width: 1024px) {
    .grid-4, .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
    .section { padding-top: var(--space-3xl); padding-bottom: var(--space-3xl); }
}