:root {
    --primary-color: #ff6b81;
    --primary-hover: #ff4757;
    --secondary-color: #7bed9f;
    --text-color: #2f3542;
    --text-light: #57606f;
    --bg-gradient: linear-gradient(135deg, #fdfbfb 0%, #ebedee 100%);
    --card-bg: rgba(255, 255, 255, 0.9);
    --border-radius: 16px;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    --input-bg: #f1f2f6;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Noto Sans SC', sans-serif;
    background: #f0f2f5;
    background-image: 
        radial-gradient(at 0% 0%, hsla(253,16%,7%,1) 0, transparent 50%), 
        radial-gradient(at 50% 0%, hsla(225,39%,30%,1) 0, transparent 50%), 
        radial-gradient(at 100% 0%, hsla(339,49%,30%,1) 0, transparent 50%);
    background-image: url('https://images.unsplash.com/photo-1516054575922-f0b8eeadec1a?ixlib=rb-4.0.3&auto=format&fit=crop&w=2000&q=80'); /* Fallback / Overlay */
    background-size: cover;
    background-attachment: fixed;
    background-position: center;
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    padding: 20px;
    position: relative;
}

/* Glassmorphism Background Overlay */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(10px);
    z-index: -1;
}

.container {
    width: 100%;
    max-width: 800px;
    background: var(--card-bg);
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    border: 1px solid rgba(255, 255, 255, 0.5);
    animation: fadeIn 0.8s ease-out;
}

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

header {
    text-align: center;
    margin-bottom: 40px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 10px;
}

h1 {
    font-size: 2.2rem;
    margin-bottom: 10px;
    color: var(--text-color);
}

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

.form-section {
    margin-bottom: 30px;
    background: #fff;
    padding: 24px;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.02);
}

.form-section h2 {
    font-size: 1.25rem;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #f1f2f6;
    color: var(--text-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.grid-3 {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 20px;
}

.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-color);
    font-size: 0.95rem;
}

input[type="text"],
input[type="number"],
input[type="month"],
textarea,
select {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid transparent;
    background: var(--input-bg);
    border-radius: 8px;
    font-size: 1rem;
    color: var(--text-color);
    transition: var(--transition);
    font-family: inherit;
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    background: #fff;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(255, 107, 129, 0.1);
}

textarea {
    resize: vertical;
}

/* Radio Cards */
.radio-group {
    display: flex;
    gap: 15px;
}

.radio-card {
    flex: 1;
    cursor: pointer;
    position: relative;
}

.radio-card input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
}

.radio-card span {
    display: block;
    padding: 12px;
    text-align: center;
    background: var(--input-bg);
    border-radius: 8px;
    transition: var(--transition);
    border: 1px solid transparent;
}

.radio-card input:checked + span {
    background: #fff;
    border-color: var(--primary-color);
    color: var(--primary-color);
    box-shadow: 0 4px 10px rgba(255, 107, 129, 0.2);
    font-weight: 600;
}

/* Checkbox Pills */
.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.checkbox-pill {
    cursor: pointer;
}

.checkbox-pill input {
    display: none;
}

/* Pseudo-element for custom checkbox appearance if simpler text style wasn't enough, 
   but let's keep it clean: just style the label text */
.checkbox-pill {
    padding: 8px 16px;
    background: var(--input-bg);
    border-radius: 20px;
    font-size: 0.9rem;
    transition: var(--transition);
    border: 1px solid transparent;
    user-select: none;
}

.checkbox-pill:has(input:checked) {
    background: var(--primary-color);
    color: white;
    box-shadow: 0 4px 10px rgba(255, 107, 129, 0.3);
}

/* Toggle Switch */
.toggle-group {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-top: 10px;
}

.toggle-switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 28px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: .4s;
    border-radius: 34px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--primary-color);
}

input:checked + .slider:before {
    transform: translateX(22px);
}

.label-text {
    font-size: 0.95rem;
    color: var(--text-color);
}

/* Submit Button */
.form-actions {
    text-align: center;
    margin-top: 40px;
}

.submit-btn {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 16px 48px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 8px 20px rgba(255, 107, 129, 0.3);
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.submit-btn:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 12px 25px rgba(255, 107, 129, 0.4);
}

.submit-btn:active {
    transform: translateY(1px);
}

/* Loading State */
.submit-btn.loading {
    background: #ccc;
    cursor: not-allowed;
    pointer-events: none;
}

/* Toast Notification */
.toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--text-color);
    color: white;
    padding: 12px 24px;
    border-radius: 8px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
    z-index: 1000;
    opacity: 1;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.toast.hidden {
    opacity: 0;
    transform: translate(-50%, 20px);
    pointer-events: none;
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 20px;
    }

    .grid-2, .grid-3 {
        grid-template-columns: 1fr;
    }
    
    h1 {
        font-size: 1.8rem;
    }
}