:root {
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --bg-color: #0f172a;
    --card-bg: rgba(30, 41, 59, 0.7);
    --border-color: rgba(255, 255, 255, 0.1);
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --input-bg: rgba(15, 23, 42, 0.6);
    --success: #10b981;
    --error: #ef4444;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow-x: hidden;
    padding: 2rem 1rem;
}

/* Background Animated Blobs */
.background-elements {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    overflow: hidden;
}

.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: float 20s infinite alternate;
}

.blob-1 {
    top: -10%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, #6366f1 0%, transparent 70%);
}

.blob-2 {
    bottom: -10%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, #8b5cf6 0%, transparent 70%);
    animation-delay: -10s;
}

@keyframes float {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(100px, 50px) scale(1.2); }
}

/* Container */
.container {
    width: 100%;
    max-width: 800px;
    z-index: 1;
}

/* Header */
header {
    text-align: center;
    margin-bottom: 2rem;
}

.logo {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary), #8b5cf6);
    border-radius: 16px;
    margin-bottom: 1rem;
    box-shadow: 0 10px 25px rgba(99, 102, 241, 0.4);
}

.logo i {
    font-size: 2rem;
    color: white;
}

header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(to right, #fff, #cbd5e1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

header p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* Cards (Glassmorphism) */
.card {
    background: var(--card-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 30px 60px -12px rgba(0, 0, 0, 0.6);
}

.card-header {
    display: flex;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.card-header i {
    font-size: 1.5rem;
    color: var(--primary);
    margin-right: 0.75rem;
}

.card-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
}

/* Forms & Inputs */
.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

@media (max-width: 640px) {
    .form-grid {
        grid-template-columns: 1fr;
    }
}

.input-group {
    display: flex;
    flex-direction: column;
}

.input-group.full-width {
    grid-column: 1 / -1;
}

.input-group label {
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: #e2e8f0;
}

.input-group small {
    margin-top: 0.5rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-wrapper i.ph {
    position: absolute;
    left: 1rem;
    color: var(--text-muted);
    font-size: 1.2rem;
}

input[type="text"],
input[type="number"],
input[type="password"],
select {
    width: 100%;
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 0.75rem 1rem 0.75rem 2.75rem;
    border-radius: 12px;
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
    outline: none;
}

.select-wrapper::after {
    content: '\25BC';
    position: absolute;
    right: 1rem;
    font-size: 0.8rem;
    color: var(--text-muted);
    pointer-events: none;
}
select {
    appearance: none;
}
select option {
    background-color: var(--bg-color);
    color: var(--text-main);
}

input:focus,
select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.btn-icon {
    position: absolute;
    right: 0.5rem;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 8px;
    transition: all 0.2s;
}

.btn-icon:hover {
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.1);
}

/* Radio Group */
.radio-group {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

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

.radio-label input[type="radio"] {
    position: absolute;
    opacity: 0;
}

.radio-custom {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    font-size: 0.9rem;
    transition: all 0.3s;
}

.radio-label input[type="radio"]:checked ~ .radio-custom {
    background: rgba(99, 102, 241, 0.2);
    border-color: var(--primary);
    color: #fff;
}

/* Primary Button */
.btn-primary {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, var(--primary), #8b5cf6);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin-top: 2rem;
    transition: all 0.3s ease;
    box-shadow: 0 10px 20px -5px rgba(99, 102, 241, 0.5);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 25px -5px rgba(99, 102, 241, 0.6);
}

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

.btn-primary i {
    font-size: 1.25rem;
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 100;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 1;
    transition: opacity 0.3s ease;
}

.loading-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.loading-content {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 3rem;
    border-radius: 24px;
    text-align: center;
    max-width: 400px;
    width: 90%;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.spinner {
    width: 64px;
    height: 64px;
    border: 4px solid rgba(255, 255, 255, 0.1);
    border-left-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1.5rem;
}

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

.loading-content h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.loading-content p {
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.progress-steps {
    text-align: left;
}

.step {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    color: var(--text-muted);
}

.step.active {
    color: var(--text-main);
}

.step.active i {
    color: var(--primary);
}

.blink i {
    animation: blink 1.5s infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Toast */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 1rem 1.5rem;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.5);
    z-index: 101;
    transform: translateY(0);
    opacity: 1;
    transition: all 0.3s ease;
}

.toast.hidden {
    transform: translateY(20px);
    opacity: 0;
    pointer-events: none;
}

.toast.success i { color: var(--success); }
.toast.error i { color: var(--error); }