/* ===== CSS Variables & Design Tokens ===== */
:root {
    /* Colors - Unified with main styles */
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --accent-color: #667eea;
    --accent-hover: #5a6fd6;

    --bg-primary: #0f0f1a;
    --bg-secondary: #1a1a2e;
    --bg-card: rgba(30, 30, 50, 0.8);
    --bg-glass: rgba(255, 255, 255, 0.05);
    --bg-input: rgba(15, 23, 42, 0.5);

    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.5);

    --border-color: rgba(255, 255, 255, 0.1);
    --border-glow: rgba(102, 126, 234, 0.5);

    /* Spacing */
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;

    /* Border Radius */
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    /* Shadows */
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 40px rgba(102, 126, 234, 0.3);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-xl);
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 20%, rgba(102, 126, 234, 0.15) 0%, transparent 40%),
    radial-gradient(circle at 80% 80%, rgba(118, 75, 162, 0.15) 0%, transparent 40%),
    radial-gradient(circle at 50% 50%, rgba(240, 147, 251, 0.05) 0%, transparent 60%);
    pointer-events: none;
    z-index: 0;
}

.container {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 500px;
}

header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

header h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

header p {
    color: var(--text-secondary);
}

.card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

input, select {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: all 0.2s;
}

input:focus, select:focus {
    outline: none;
    border-color: var(--border-glow);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
}

/* Radio Group Styling */
.radio-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.radio-card {
    position: relative;
    cursor: pointer;
}

.radio-card input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.radio-content {
    display: flex;
    flex-direction: column;
    padding: var(--spacing-md);
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all 0.2s;
}

.radio-title {
    font-weight: 600;
    color: var(--text-primary);
}

.radio-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

.radio-card input:checked + .radio-content {
    background: rgba(102, 126, 234, 0.1);
    border-color: var(--border-glow);
}

.cta-button {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: var(--spacing-md);
    background: var(--primary-gradient);
    color: var(--text-primary);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 0 4px 20px rgba(102, 126, 234, 0.4);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 30px rgba(102, 126, 234, 0.5);
}

.cta-button:active {
    transform: scale(0.98);
}

footer {
    text-align: center;
    margin-top: var(--spacing-xl);
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Date picker color fix for dark mode */
::-webkit-calendar-picker-indicator {
    filter: invert(1);
    opacity: 0.6;
    cursor: pointer;
}