/* ==========================================================================
   V1RCM - 3D Components, WebGL Wrappers, Cards & Interactive UI
   ========================================================================== */

/* 3D Tilt Cards Container & Base */
.tilt-card-wrap {
    perspective: 1000px;
    transform-style: preserve-3d;
}

.tilt-card {
    position: relative;
    background: var(--bg-surface);
    border: 1px solid var(--border-card);
    border-radius: 24px;
    padding: 2.5rem;
    transition: transform 0.15s ease-out, border-color 0.3s ease, box-shadow 0.3s ease;
    transform-style: preserve-3d;
    overflow: hidden;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.tilt-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.tilt-card:hover {
    border-color: var(--primary);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.6), 0 0 30px var(--primary-glow);
}

.tilt-card:hover::before {
    opacity: 1;
}

/* 3D Card Elements with Z-Index Offset */
.tilt-card-icon {
    width: 64px;
    height: 64px;
    border-radius: 18px;
    background: linear-gradient(135deg, rgba(0, 242, 254, 0.15) 0%, rgba(79, 172, 254, 0.05) 100%);
    border: 1px solid var(--border-glow);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: var(--primary);
    margin-bottom: 1.75rem;
    transform: translateZ(40px);
    transition: transform var(--transition-normal);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
}

.tilt-card:hover .tilt-card-icon {
    transform: translateZ(50px) scale(1.08);
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: #03070E;
    box-shadow: 0 10px 25px var(--primary-glow);
}

.tilt-card-title {
    font-size: 1.35rem;
    margin-bottom: 0.75rem;
    transform: translateZ(30px);
    color: #FFFFFF;
}

.tilt-card-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.75rem;
    transform: translateZ(20px);
    flex-grow: 1;
}

.tilt-card-features {
    list-style: none;
    margin-bottom: 2rem;
    transform: translateZ(25px);
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
}

.tilt-card-features li {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.tilt-card-features li i {
    color: var(--accent-green);
    font-size: 0.85rem;
}

.tilt-card-footer {
    transform: translateZ(35px);
    padding-top: 1rem;
    border-top: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* 3D Glare effect */
.tilt-glare {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    background: radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.15) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.2s ease;
    mix-blend-mode: overlay;
    border-radius: 24px;
}

/* ==========================================================================
   Interactive Revenue Recovery & Denial ROI Calculator
   ========================================================================== */
.calculator-panel {
    background: linear-gradient(145deg, rgba(13, 20, 36, 0.95) 0%, rgba(8, 13, 26, 0.98) 100%);
    border: 1px solid var(--border-glow);
    border-radius: 28px;
    padding: 3.5rem;
    box-shadow: 0 25px 70px rgba(0, 0, 0, 0.8), 0 0 40px rgba(0, 242, 254, 0.12);
    position: relative;
    overflow: hidden;
}

.calculator-panel::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(0, 242, 254, 0.12) 0%, transparent 70%);
    pointer-events: none;
}

.calculator-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 3.5rem;
    align-items: center;
}

/* Controls */
.calc-controls {
    display: flex;
    flex-direction: column;
    gap: 2.25rem;
}

.calc-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.calc-label-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.calc-label {
    font-weight: 600;
    font-size: 1rem;
    color: var(--text-primary);
}

.calc-value-badge {
    background: rgba(0, 242, 254, 0.12);
    border: 1px solid var(--border-glow);
    color: var(--primary);
    padding: 0.35rem 0.85rem;
    border-radius: 8px;
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 1.1rem;
}

/* Custom Range Input */
.calc-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 8px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.1);
    outline: none;
    transition: background 0.2s;
    cursor: pointer;
}

.calc-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--primary);
    box-shadow: 0 0 15px var(--primary-glow);
    cursor: pointer;
    border: 2px solid #FFFFFF;
    transition: transform 0.1s ease;
}

.calc-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

/* Results Display Card (3D Projected) */
.calc-results-card {
    background: rgba(19, 30, 53, 0.8);
    border: 1px solid rgba(0, 242, 254, 0.25);
    border-radius: 24px;
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(16px);
    position: relative;
}

.calc-big-stat {
    text-align: center;
    border-bottom: 1px solid var(--border-subtle);
    padding-bottom: 1.75rem;
}

.calc-stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 0.5rem;
}

.calc-stat-number {
    font-family: var(--font-heading);
    font-size: 3.25rem;
    font-weight: 900;
    color: var(--accent-green);
    text-shadow: 0 0 25px var(--accent-green-glow);
    line-height: 1;
}

.calc-substats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.substat-box {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-subtle);
    border-radius: 14px;
    padding: 1.25rem;
    text-align: center;
}

.substat-val {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.25rem;
}

.substat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ==========================================================================
   Full-Cycle 3D RCM Workflow Pipeline Steps
   ========================================================================== */
.pipeline-flow {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 1.25rem;
    position: relative;
    margin: 3rem 0;
}

.pipeline-step {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: 18px;
    padding: 1.75rem 1.25rem;
    text-align: center;
    position: relative;
    transition: all var(--transition-normal);
}

.pipeline-step:hover {
    border-color: var(--primary);
    transform: translateY(-6px);
    box-shadow: 0 10px 30px rgba(0, 242, 254, 0.2);
}

.step-num {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: var(--primary);
    color: #000;
    font-size: 0.75rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 10px var(--primary-glow);
}

.step-icon {
    font-size: 1.85rem;
    color: var(--primary);
    margin-top: 0.5rem;
    margin-bottom: 1rem;
}

.step-title {
    font-size: 1rem;
    font-weight: 700;
    color: #FFFFFF;
    margin-bottom: 0.5rem;
}

.step-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.45;
}

/* ==========================================================================
   Interactive Tabs for Specialties
   ========================================================================== */
.tabs-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.tab-btn {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    padding: 0.75rem 1.4rem;
    border-radius: 999px;
    font-size: 0.925rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.tab-btn:hover {
    color: var(--text-primary);
    border-color: rgba(255, 255, 255, 0.25);
}

.tab-btn.active {
    background: var(--primary);
    color: #040811;
    border-color: var(--primary);
    box-shadow: 0 0 20px var(--primary-glow);
    font-weight: 700;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeInTab 0.4s ease-out forwards;
}

@keyframes fadeInTab {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   Modal Dialogs (Zero-Cost Audit Intake & Discovery)
   ========================================================================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(4, 7, 14, 0.85);
    backdrop-filter: blur(16px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-dialog {
    background: var(--bg-surface);
    border: 1px solid var(--border-glow);
    border-radius: 28px;
    width: 100%;
    max-width: 650px;
    max-height: 90vh;
    overflow-y: auto;
    padding: 3rem;
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.9), 0 0 50px rgba(0, 242, 254, 0.15);
    transform: scale(0.92) translateY(20px);
    transition: all var(--transition-normal);
    position: relative;
}

.modal-overlay.active .modal-dialog {
    transform: scale(1) translateY(0);
}

.modal-close {
    position: absolute;
    top: 1.75rem;
    right: 1.75rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-subtle);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--danger);
    color: #fff;
    border-color: var(--danger);
}

/* High-Tech Form Controls */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1.35rem;
}

.form-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}

.form-input, .form-select, .form-textarea {
    width: 100%;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-card);
    border-radius: 12px;
    padding: 0.85rem 1.15rem;
    color: #FFFFFF;
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: all var(--transition-fast);
    outline: none;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 15px var(--primary-glow);
    background: rgba(255, 255, 255, 0.06);
}

.form-select option {
    background-color: var(--bg-surface);
    color: #FFFFFF;
}

.form-feedback {
    padding: 1rem;
    border-radius: 10px;
    margin-bottom: 1.5rem;
    display: none;
}

.form-feedback.success {
    display: block;
    background: rgba(0, 230, 118, 0.15);
    border: 1px solid var(--accent-green);
    color: var(--accent-green);
}

.form-feedback.error {
    display: block;
    background: rgba(255, 51, 102, 0.15);
    border: 1px solid var(--danger);
    color: var(--danger);
}