:root {
    --bg-deep: #0f172a;
    --glass: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --text-primary: #f1f5f9;
    --text-muted: #94a3b8;
    --font-xl: 56px;
    --font-lg: 28px;
    
    /* Dynamic color updated by JS */
    --knob-color: #22c55e;
    --knob-glow: rgba(34, 197, 94, 0.3);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}

body {
    background-color: var(--bg-deep);
    color: var(--text-primary);
    font-family: 'Outfit', sans-serif;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 20px;
    overflow-x: hidden;
}

.background-glow {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% 50%, var(--knob-glow) 0%, transparent 60%);
    z-index: -1;
    transition: background 0.3s ease;
}

.container {
    width: 100%;
    max-width: 480px;
    padding: 24px;
    border-radius: 32px;
    margin-top: 10px;
}

.glass {
    background: var(--glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.8);
}

header {
    text-align: center;
    margin-bottom: 16px;
}

.app-logo {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    margin-bottom: 8px;
    box-shadow: 0 0 20px var(--glass-border);
}

h1 {
    font-size: var(--font-lg);
    font-weight: 700;
    letter-spacing: -1px;
    color: #fff;
}

.card {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 24px;
    padding: 20px;
    margin-bottom: 24px;
    border: 1px solid var(--glass-border);
}

.status-section {
    text-align: center;
    border-color: var(--knob-color);
    box-shadow: 0 0 15px var(--knob-glow);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.scenario-label {
    font-size: 24px;
    font-weight: 700;
    color: var(--knob-color);
    margin-bottom: 4px;
    transition: color 0.3s ease;
}

.sedation-desc {
    font-size: 16px;
    color: var(--text-primary);
    font-weight: 300;
}

.knob-container {
    position: relative;
    width: 260px;
    height: 260px;
    margin: 0 auto 32px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.progress-ring {
    position: absolute;
    top: 0;
    left: 0;
    pointer-events: none;
    transform: rotate(135deg);
}

.progress-ring-track {
    stroke: rgba(255, 255, 255, 0.1);
}

.progress-ring-circle {
    stroke: var(--knob-color);
    stroke-linecap: round;
    transition: stroke 0.3s ease, stroke-dashoffset 0.1s linear;
}

.knob {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: linear-gradient(145deg, #1e293b, #0f172a);
    box-shadow: 10px 10px 20px #090e19, -10px -10px 20px #15203b, inset 0 0 0 2px var(--glass-border);
    position: relative;
    cursor: grab;
    touch-action: none;
    display: flex;
    justify-content: center;
    align-items: center;
    transform-origin: center;
    z-index: 10;
}

.knob:active {
    cursor: grabbing;
}

.knob-indicator {
    position: absolute;
    top: 15px;
    width: 16px;
    height: 16px;
    background: var(--knob-color);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--knob-color);
    transition: background 0.3s ease, box-shadow 0.3s ease;
}

.results-grid {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 24px;
}

.result-card {
    padding: 16px 20px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.glass-light {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
}

.med-info {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    transition: opacity 0.2s;
}

.med-info:hover {
    opacity: 0.8;
}

.info-icon {
    width: 20px;
    height: 20px;
    color: var(--knob-color);
    transition: color 0.3s ease;
}

.med-name {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-muted);
}

.dose-display {
    display: flex;
    align-items: baseline;
    gap: 6px;
}

.count {
    font-size: 28px;
    font-weight: 700;
    line-height: 1;
}

.neon-text {
    color: var(--knob-color);
    text-shadow: 0 0 10px var(--knob-glow);
    transition: color 0.3s ease, text-shadow 0.3s ease;
}

.unit {
    font-size: 16px;
    color: var(--text-muted);
    font-weight: 400;
}

.override-section {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 16px;
    border: 1px solid var(--glass-border);
    margin-bottom: 24px;
    overflow: hidden;
}

.override-summary {
    padding: 16px;
    font-weight: 700;
    color: var(--text-muted);
    cursor: pointer;
    user-select: none;
    outline: none;
    display: flex;
    align-items: center;
}

.override-summary::before {
    content: '▶';
    font-size: 12px;
    margin-right: 10px;
    transition: transform 0.2s ease;
}

details[open] .override-summary::before {
    transform: rotate(90deg);
}

.override-controls {
    padding: 0 16px 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

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

.override-row label {
    font-size: 14px;
    color: var(--text-primary);
    margin-bottom: 0;
}

.controls {
    display: flex;
    gap: 8px;
}

.btn-adjust {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    width: 36px;
    height: 36px;
    border-radius: 8px;
    font-size: 20px;
    font-weight: bold;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-adjust:active {
    background: rgba(255, 255, 255, 0.1);
}

.disclaimer {
    text-align: center;
    font-size: 13px;
    color: var(--text-muted);
    padding-top: 16px;
    border-top: 1px solid var(--glass-border);
}

.disclaimer strong {
    color: #ef4444;
}

/* iOS Safe Areas */
@supports (padding-top: env(safe-area-inset-top)) {
    .container {
        margin-top: env(safe-area-inset-top);
        padding-bottom: calc(24px + env(safe-area-inset-bottom));
    }
}

.modal {
    display: none;
    position: fixed;
    z-index: 100;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.modal.show {
    display: flex;
}

.modal-content {
    background: var(--bg-deep);
    padding: 24px;
    border-radius: 20px;
    max-width: 400px;
    width: 100%;
    position: relative;
    border: 1px solid var(--glass-border);
    box-shadow: 0 10px 40px rgba(0,0,0,0.5);
}

.close-modal {
    position: absolute;
    top: 16px;
    right: 20px;
    color: var(--text-muted);
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    line-height: 1;
}

.close-modal:hover {
    color: var(--text-primary);
}

#modal-title {
    margin-bottom: 12px;
    color: var(--knob-color);
    font-size: 22px;
}

#modal-desc {
    color: var(--text-primary);
    line-height: 1.5;
    font-size: 15px;
}