:root {
    --bg-color: #0b0f19;
    --text-color: #ffffff;
    --primary-color: #25A64D; /* Green button */
    --primary-hover: #1e873e;
    --secondary-color: #333a4d;
    --input-bg: #ffffff;
    --input-text: #333333;
    --font-family: 'Inter', sans-serif;
    --border-radius: 12px;
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: var(--font-family);
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: flex-start;
    min-height: 100vh;
    padding: 20px;
    /* Subtle radial gradient background */
    background: radial-gradient(circle at top, #162035 0%, #0b0f19 100%);
}

.container {
    width: 100%;
    max-width: 500px;
    margin-top: 40px;
}

/* Header & Logo */
.header {
    text-align: center;
    margin-bottom: 40px;
}

.logo h1 {
    font-size: 32px;
    font-weight: 800;
    letter-spacing: -1px;
    text-transform: uppercase;
    background: linear-gradient(90deg, #ffffff, #aaaaaa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 4px;
}

.logo p {
    font-size: 14px;
    letter-spacing: 6px;
    color: #f7931e; /* Orange accent */
    font-weight: 600;
}

/* Funnel Steps */
.step {
    display: none;
    animation: fadeIn 0.4s ease forwards;
}

.step.active {
    display: block;
}

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

.step h2 {
    font-size: 22px;
    margin-bottom: 24px;
    line-height: 1.4;
    font-weight: 600;
}

.step p {
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 16px;
    color: #d1d5db;
}

/* Inputs & Forms */
.input-group {
    margin-bottom: 20px;
}

.input-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 16px;
}

.text-input {
    width: 100%;
    padding: 16px 20px;
    border-radius: var(--border-radius);
    border: none;
    font-size: 16px;
    background-color: var(--input-bg);
    color: var(--input-text);
    outline: none;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: var(--transition);
}

.text-input:focus {
    box-shadow: 0 0 0 3px rgba(37, 166, 77, 0.4);
}

/* Radio Buttons */
.radio-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 24px;
}

.radio-label {
    display: flex;
    align-items: center;
    background-color: var(--input-bg);
    color: var(--input-text);
    padding: 16px 20px;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 15px;
    font-weight: 500;
    transition: var(--transition);
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    position: relative;
}

.radio-label:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.15);
}

.radio-label.selected {
    background-color: #f0fdf4;
    border: 2px solid var(--primary-color);
}

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

.custom-radio {
    height: 22px;
    width: 22px;
    background-color: #e5e7eb;
    border-radius: 50%;
    margin-right: 14px;
    position: relative;
    flex-shrink: 0;
    border: 1px solid #d1d5db;
    transition: var(--transition);
}

.radio-label input:checked ~ .custom-radio {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.radio-label input:checked ~ .custom-radio:after {
    content: "";
    position: absolute;
    display: block;
    top: 6px;
    left: 6px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: white;
}

/* Buttons */
.actions {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

.btn {
    padding: 16px 24px;
    border-radius: var(--border-radius);
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    flex: 1;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
    box-shadow: 0 4px 15px rgba(37, 166, 77, 0.4);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 166, 77, 0.5);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background-color: transparent;
    color: #a1a1aa;
    flex: 0.5;
}

.btn-secondary:hover {
    color: white;
}

.btn-large {
    width: 100%;
    flex: none;
    font-size: 15px;
}

/* Error Messages */
.error-msg {
    color: #ef4444;
    font-size: 14px;
    margin-top: -8px;
    margin-bottom: 12px;
    display: none;
}