@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&display=swap');

:root {
    --bg-color: #06090e;
    --panel-bg: rgba(13, 20, 35, 0.65);
    --border-color: rgba(255, 255, 255, 0.08);
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    
    /* Neon Accents */
    --accent-cyan: #00E5FF;
    --accent-cyan-glow: rgba(0, 229, 255, 0.3);
    --accent-emerald: #00E676;
    --accent-emerald-glow: rgba(0, 230, 118, 0.25);
    --accent-orange: #FF9100;
    --accent-orange-glow: rgba(255, 145, 0, 0.25);
    --accent-red: #FF3D00;
    --accent-red-glow: rgba(255, 61, 0, 0.3);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', 'Inter', sans-serif;
    -webkit-tap-highlight-color: transparent;
}

body {
    background-color: var(--bg-color);
    background-image: radial-gradient(circle at 50% 10%, #152238 0%, var(--bg-color) 70%);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.5;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: var(--bg-color);
}
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-cyan);
}

/* Layout container */
.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 20px 16px 80px 16px;
}

/* Header */
header {
    text-align: center;
    margin-bottom: 30px;
    padding-top: 10px;
}

.logo h1 {
    font-weight: 700;
    font-size: 2.2rem;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, #ffffff 30%, var(--accent-cyan) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.logo span {
    color: var(--accent-cyan);
    font-size: 1.2rem;
    margin-left: 2px;
}

header p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-top: 6px;
}

/* Central Search Block */
.search-container {
    position: relative;
    margin-bottom: 30px;
}

.search-input {
    width: 100%;
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    padding: 18px 20px 18px 50px;
    border-radius: 16px;
    color: #fff;
    font-size: 1.1rem;
    outline: none;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.search-input:focus {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 20px var(--accent-cyan-glow), 0 4px 20px rgba(0, 0, 0, 0.4);
}

.search-icon {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    pointer-events: none;
    transition: color 0.3s;
}

.search-input:focus + .search-icon {
    color: var(--accent-cyan);
}

/* Category grid (Calculators list) */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 16px;
    margin-bottom: 30px;
}

.card {
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 20px;
    cursor: pointer;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--accent-cyan), transparent);
    transform: translateX(-100%);
    transition: transform 0.4s ease;
}

.card:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.card:hover::before {
    transform: translateX(100%);
}

.card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card h3 i {
    color: var(--accent-cyan);
    font-size: 1.1rem;
}

.card p {
    color: var(--text-secondary);
    font-size: 0.88rem;
    line-height: 1.4;
}

.card .badge {
    display: inline-block;
    padding: 2px 8px;
    font-size: 0.75rem;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--accent-cyan);
    margin-top: 12px;
    border: 1px solid rgba(0, 229, 255, 0.15);
}

/* Calculator View Container */
.calculator-view {
    display: none;
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 24px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    animation: slideUp 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.calc-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    padding-bottom: 16px;
}

.btn-back {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 8px 16px;
    border-radius: 10px;
    cursor: pointer;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s;
}

.btn-back:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

.calc-title h2 {
    font-size: 1.4rem;
    font-weight: 600;
}

/* UI Elements */
.section-title {
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.8px;
    margin: 20px 0 10px 0;
    font-weight: 500;
}

/* Group Selection Buttons (e.g. GCS selection) */
.options-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 20px;
}

.option-btn {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    color: var(--text-primary);
    padding: 12px 16px;
    border-radius: 12px;
    cursor: pointer;
    text-align: left;
    transition: all 0.25s ease;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.95rem;
}

.option-btn:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.15);
}

.option-btn.active {
    background: rgba(0, 229, 255, 0.06);
    border-color: var(--accent-cyan);
    box-shadow: 0 0 12px rgba(0, 229, 255, 0.15);
}

.option-btn .points {
    background: rgba(255, 255, 255, 0.06);
    padding: 2px 8px;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    border: 1px solid rgba(255, 255, 255, 0.04);
}

.option-btn.active .points {
    background: var(--accent-cyan);
    color: #000;
    border-color: var(--accent-cyan);
}

/* Numeric input forms */
.inputs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 20px;
}

.input-wrapper {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.input-wrapper label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.input-control {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    padding: 12px 16px;
    border-radius: 12px;
    color: #fff;
    font-size: 1.1rem;
    outline: none;
    transition: all 0.2s;
}

.input-control:focus {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 10px var(--accent-cyan-glow);
}

/* Result box styling */
.result-box {
    margin-top: 24px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    padding: 20px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.result-box.normal {
    border-color: var(--accent-emerald);
    background: rgba(0, 230, 118, 0.03);
}

.result-box.warning {
    border-color: var(--accent-orange);
    background: rgba(255, 145, 0, 0.03);
}

.result-box.danger {
    border-color: var(--accent-red);
    background: rgba(255, 61, 0, 0.03);
}

.result-score {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 4px;
    letter-spacing: -1px;
}

.result-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.result-desc {
    color: var(--text-secondary);
    font-size: 0.88rem;
    line-height: 1.4;
}

.result-hint {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 0.85rem;
    color: var(--accent-cyan);
    font-weight: 500;
}

/* RASS vertical scale */
.rass-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.rass-item {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.04);
    cursor: pointer;
    transition: all 0.2s;
}

.rass-item:hover {
    background: rgba(255, 255, 255, 0.05);
}

.rass-score {
    font-size: 1.2rem;
    font-weight: 700;
    width: 50px;
    text-align: center;
    border-radius: 8px;
    padding: 4px 0;
    margin-right: 16px;
}

.rass-info {
    flex: 1;
}

.rass-info h4 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 2px;
}

.rass-info p {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* RASS color categories */
.rass-item.r-agitated .rass-score {
    background: rgba(255, 61, 0, 0.15);
    color: #FF3D00;
    border: 1px solid rgba(255, 61, 0, 0.3);
}
.rass-item.r-agitated.active {
    background: rgba(255, 61, 0, 0.1);
    border-color: #FF3D00;
    box-shadow: 0 0 15px rgba(255, 61, 0, 0.25);
}

.rass-item.r-neutral .rass-score {
    background: rgba(255, 255, 255, 0.05);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.1);
}
.rass-item.r-neutral.active {
    background: rgba(255, 255, 255, 0.08);
    border-color: #fff;
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.15);
}

.rass-item.r-sedated .rass-score {
    background: rgba(0, 229, 255, 0.15);
    color: #00E5FF;
    border: 1px solid rgba(0, 229, 255, 0.3);
}
.rass-item.r-sedated.active {
    background: rgba(0, 229, 255, 0.1);
    border-color: #00E5FF;
    box-shadow: 0 0 15px rgba(0, 229, 255, 0.25);
}

.rass-item.r-deep .rass-score {
    background: rgba(0, 230, 118, 0.15);
    color: #00E676;
    border: 1px solid rgba(0, 230, 118, 0.3);
}
.rass-item.r-deep.active {
    background: rgba(0, 230, 118, 0.1);
    border-color: #00E676;
    box-shadow: 0 0 15px rgba(0, 230, 118, 0.25);
}

/* Two-way converter toggle button */
.converter-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 6px;
    margin-bottom: 20px;
}

.conv-tab {
    flex: 1;
    text-align: center;
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 0.88rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    color: var(--text-secondary);
}

.conv-tab.active {
    background: rgba(0, 229, 255, 0.08);
    color: var(--accent-cyan);
    border: 1px solid rgba(0, 229, 255, 0.15);
}

/* Alert Boxes for point of care */
.poc-alert {
    display: flex;
    gap: 12px;
    padding: 14px;
    border-radius: 12px;
    background: rgba(255, 145, 0, 0.05);
    border: 1px solid rgba(255, 145, 0, 0.15);
    color: #fff;
    margin-bottom: 20px;
    font-size: 0.88rem;
    line-height: 1.4;
}

.poc-alert i {
    color: var(--accent-orange);
    font-size: 1.1rem;
    margin-top: 2px;
}

.no-results {
    grid-column: 1 / -1;
    text-align: center;
    padding: 40px 20px;
    color: var(--text-secondary);
    font-size: 1rem;
}

/* Responsive adjust */
@media (max-width: 600px) {
    .container {
        padding-top: 10px;
    }
    .logo h1 {
        font-size: 1.8rem;
    }
    .search-input {
        padding: 14px 16px 14px 44px;
        font-size: 1rem;
    }
    .search-icon {
        left: 16px;
    }
    .calculator-view {
        padding: 16px;
    }
    .calc-header {
        margin-bottom: 16px;
    }
}

/* TDP Interactive Algorithm Styles */
.tdp-container {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 10px;
}

.tdp-node {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-left: 5px solid var(--accent-cyan);
    border-radius: 16px;
    padding: 24px;
    animation: fadeIn 0.3s ease;
    position: relative;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
}

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

.tdp-step-label {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--accent-cyan);
    margin-bottom: 8px;
}

.tdp-instruction {
    color: var(--text-primary);
    font-size: 0.95rem;
    line-height: 1.5;
    margin-bottom: 20px;
}

.tdp-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.tdp-btn {
    padding: 12px 24px;
    border-radius: 10px;
    font-size: 0.92rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.2s ease;
    outline: none;
}

.tdp-btn.success {
    background: var(--accent-emerald);
    color: #000;
}
.tdp-btn.success:hover {
    background: #00ff80;
    box-shadow: 0 0 15px var(--accent-emerald-glow);
}

.tdp-btn.danger {
    background: var(--accent-red);
    color: #fff;
}
.tdp-btn.danger:hover {
    background: #ff521a;
    box-shadow: 0 0 15px var(--accent-red-glow);
}

.tdp-btn.info {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}
.tdp-btn.info:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

.tdp-node-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    font-size: 0.75rem;
    padding: 2px 8px;
    border-radius: 6px;
    font-weight: 600;
}

.tdp-node-badge.success {
    background: rgba(0, 230, 118, 0.15);
    color: var(--accent-emerald);
    border: 1px solid rgba(0, 230, 118, 0.3);
}

.tdp-node-badge.warning {
    background: rgba(255, 145, 0, 0.15);
    color: var(--accent-orange);
    border: 1px solid rgba(255, 145, 0, 0.3);
}

.tdp-node-badge.critical {
    background: rgba(255, 61, 0, 0.15);
    color: var(--accent-red);
    border: 1px solid rgba(255, 61, 0, 0.3);
}

/* CICO State Border */
.tdp-node.tdp-cico {
    background: rgba(255, 61, 0, 0.05);
    border: 2px solid var(--accent-red);
    border-left: 8px solid var(--accent-red);
    box-shadow: 0 0 25px rgba(255, 61, 0, 0.2);
}

.tdp-node.tdp-cico .tdp-step-label {
    color: var(--accent-red);
}

.tdp-btn.critical-done {
    background: var(--accent-red);
    color: #fff;
    font-size: 1rem;
    padding: 14px 28px;
    border-radius: 12px;
    font-weight: 700;
    width: 100%;
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(255, 61, 0, 0.6); }
    70% { box-shadow: 0 0 0 10px rgba(255, 61, 0, 0); }
    100% { box-shadow: 0 0 0 0 rgba(255, 61, 0, 0); }
}