@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

:root {
    --bg-primary: #0b0f19;
    --bg-secondary: #131c31;
    --accent-blue: #3b82f6;
    --accent-indigo: #6366f1;
    --accent-violet: #8b5cf6;
    --accent-cyan: #06b6d4;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --glass-bg: rgba(30, 41, 59, 0.7);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glow-shadow: 0 0 25px rgba(99, 102, 241, 0.35);
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Base Reset & Typography */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background: radial-gradient(circle at top right, #1e1b4b 0%, #0f172a 50%, #020617 100%);
    background-attachment: fixed;
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
    overflow-x: hidden;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(15px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes pulseGlow {
    0%, 100% { box-shadow: 0 0 15px rgba(99, 102, 241, 0.2); }
    50% { box-shadow: 0 0 30px rgba(99, 102, 241, 0.5); }
}

/* Typography styles */
h2 {
    font-family: 'Outfit', sans-serif;
    font-size: 2.2rem;
    font-weight: 800;
    background: linear-gradient(135deg, #a5b4fc 0%, #818cf8 50%, #6366f1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 8px;
    letter-spacing: -0.02em;
    text-align: center;
}

h3 {
    font-family: 'Outfit', sans-serif;
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: 20px;
    margin-bottom: 12px;
    border-bottom: 2px solid rgba(99, 102, 241, 0.4);
    display: inline-block;
    padding-bottom: 6px;
    letter-spacing: -0.01em;
}

p {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 12px;
}

/* Card / Container Styling */
.card-container {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    padding: 40px;
    margin: 20px auto;
    width: 100%;
    max-width: 550px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    animation: fadeIn 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.wide-card {
    max-width: 800px;
}

/* Form Elements */
form {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 15px;
}

.form-group {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
}

label {
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #c7d2fe;
}

input, select {
    width: 100%;
    padding: 12px 16px;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border-radius: 12px;
    font-size: 1rem;
    font-family: inherit;
    outline: none;
    transition: var(--transition-smooth);
}

input:focus, select:focus {
    border-color: var(--accent-indigo);
    background: rgba(15, 23, 42, 0.8);
    box-shadow: 0 0 12px rgba(99, 102, 241, 0.3);
}

input::placeholder {
    color: rgba(148, 163, 184, 0.5);
}

/* Dropdown styling improvement */
select {
    appearance: none;
    background-image: url("data:image/svg+xml;utf8,<svg fill='white' height='24' viewBox='0 0 24 24' width='24' xmlns='http://www.w3.org/2000/svg'><path d='M7 10l5 5 5-5z'/><path d='M0 0h24v24H0z' fill='none'/></svg>");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 40px;
}

select option {
    background-color: var(--bg-primary);
    color: var(--text-primary);
}

/* Buttons */
.btn-group {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
    margin-top: 25px;
}

button, .btn {
    font-family: 'Outfit', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    background: linear-gradient(135deg, var(--accent-indigo) 0%, var(--accent-violet) 100%);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 12px;
    cursor: pointer;
    transition: var(--transition-smooth);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-decoration: none;
    box-shadow: 0 4px 15px rgba(139, 92, 246, 0.2);
}

button:hover, .btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--glow-shadow);
    background: linear-gradient(135deg, #818cf8 0%, #a78bfa 100%);
}

button:active, .btn:active {
    transform: translateY(0);
}

.btn-secondary {
    background: rgba(51, 65, 85, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: none;
}

.btn-secondary:hover {
    background: rgba(71, 85, 105, 0.9);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.05);
}

.btn-success {
    background: linear-gradient(135deg, #059669 0%, #10b981 100%);
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.2);
}

.btn-success:hover {
    background: linear-gradient(135deg, #10b981 0%, #34d399 100%);
    box-shadow: 0 0 25px rgba(16, 185, 129, 0.35);
}

/* Links */
a {
    color: #a5b4fc;
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-smooth);
}

a:hover {
    color: var(--text-primary);
    text-shadow: 0 0 8px rgba(165, 180, 252, 0.5);
}

/* Footer / Switch links */
.footer-text {
    margin-top: 25px;
    font-size: 0.9rem;
    text-align: center;
    color: var(--text-secondary);
}

/* Lab Record Layout specific styles */
.lab-record-container {
    width: 100%;
    margin-top: 20px;
    background: rgba(15, 23, 42, 0.4);
    border-radius: 16px;
    padding: 24px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    text-align: left;
}

.lab-section {
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.lab-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.lab-section h4 {
    font-family: 'Outfit', sans-serif;
    font-size: 1.1rem;
    font-weight: 600;
    color: #a5b4fc;
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.lab-section pre {
    background: #020617;
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 16px;
    border-radius: 10px;
    font-family: 'Consolas', 'Fira Code', monospace;
    font-size: 0.95rem;
    color: #e2e8f0;
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-all;
    line-height: 1.5;
}

/* Loading skeleton / spinner */
.spinner-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 20px;
    padding: 40px 0;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(99, 102, 241, 0.1);
    border-top: 4px solid var(--accent-indigo);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Toast message style */
.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: rgba(16, 185, 129, 0.95);
    color: white;
    padding: 12px 24px;
    border-radius: 30px;
    font-weight: 600;
    box-shadow: 0 10px 25px rgba(0,0,0,0.3);
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 1000;
    pointer-events: none;
    display: flex;
    align-items: center;
    gap: 8px;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
}