:root {
    --bg-dark: #050505;
    --card-bg: #111111;
    --accent: #d4af37; /* Gold */
    --accent-glow: rgba(212, 175, 55, 0.2);
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --success: #27ae60;
    --font-main: 'Inter', sans-serif;
    --font-heading: 'Outfit', sans-serif;
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: var(--font-main);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    overflow-x: hidden;
}

#quiz-container {
    width: 95%;
    max-width: 550px;
    padding: 40px 30px;
    background: linear-gradient(145deg, #0d0d0d 0%, #050505 100%);
    border: 1px solid rgba(212, 175, 55, 0.1);
    border-radius: 30px;
    box-shadow: 0 25px 50px rgba(0,0,0,0.5);
    position: relative;
}

#progress-bar {
    width: 100%;
    height: 4px;
    background: rgba(255,255,255,0.05);
    border-radius: 10px;
    margin-bottom: 50px;
    overflow: hidden;
}

#progress-fill {
    height: 100%;
    width: 20%;
    background: linear-gradient(90deg, #8a6d3b, var(--accent));
    box-shadow: 0 0 10px var(--accent-glow);
    transition: width 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.quiz-step {
    display: none;
    animation: slideUp 0.6s ease-out;
}

.quiz-step.active {
    display: block;
}

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

/* Typography */
h1, h2 {
    font-family: var(--font-heading);
    text-align: center;
    margin-bottom: 25px;
    letter-spacing: -0.5px;
    line-height: 1.2;
}

h2 { font-size: 26px; }

.tech-title {
    font-size: 36px;
    font-weight: 800;
    color: #fff;
}

.tech-sub {
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 35px;
    font-size: 16px;
    line-height: 1.6;
}

/* Comparison Card */
.comparison-card {
    background: rgba(255,255,255,0.02);
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: 20px;
    padding: 10px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 35px;
}

.comp-item {
    padding: 20px;
    border-radius: 15px;
    border: 1px solid transparent;
    transition: all 0.3s ease;
}

.comp-item.highlight {
    background: rgba(212, 175, 55, 0.03);
    border: 1px solid rgba(212, 175, 55, 0.2);
}

.comp-item h4 {
    margin-bottom: 10px;
    color: var(--accent);
    font-size: 18px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.comp-arrow {
    text-align: center;
    font-weight: 900;
    color: rgba(255,255,255,0.1);
    font-size: 14px;
}

/* Buttons */
.next-btn, #submit-btn {
    width: 100%;
    padding: 20px;
    border: none;
    border-radius: 15px;
    background: linear-gradient(135deg, #d4af37 0%, #8a6d3b 100%);
    color: #000;
    font-size: 17px;
    font-weight: 800;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 10px 20px rgba(0,0,0,0.3);
}

.next-btn:hover, #submit-btn:hover {
    transform: translateY(-3px);
    filter: brightness(1.1);
    box-shadow: 0 15px 30px rgba(212, 175, 55, 0.2);
}

.options-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 15px;
}

.option-btn {
    padding: 22px 25px;
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.08);
    color: #fff;
    border-radius: 18px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: left;
}

.option-btn:hover {
    background: rgba(212, 175, 55, 0.05);
    border-color: var(--accent);
    padding-left: 30px;
}

/* Feature Card */
.feature-card {
    background: rgba(255,255,255,0.02);
    border-radius: 20px;
    padding: 30px;
    margin-bottom: 35px;
    border: 1px solid rgba(255,255,255,0.05);
}

.feature-list {
    list-style: none;
    margin-top: 25px;
}

.feature-list li {
    margin-bottom: 15px;
    color: var(--text-secondary);
    font-size: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Input Step */
.input-container {
    margin-bottom: 30px;
}

.input-container label {
    display: block;
    margin-bottom: 12px;
    color: var(--text-secondary);
    text-align: center;
    font-size: 14px;
}

input[type="tel"] {
    width: 100%;
    padding: 22px;
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 18px;
    color: #fff;
    font-size: 24px;
    font-weight: 700;
    text-align: center;
    outline: none;
    transition: border-color 0.3s;
}

input[type="tel"]:focus {
    border-color: var(--accent);
}

.privacy-note {
    text-align: center;
    font-size: 12px;
    color: #444;
    margin-top: 20px;
}

/* Mobile Adjustments */
@media (max-width: 480px) {
    #quiz-container { padding: 30px 20px; }
    .tech-title { font-size: 28px; }
    h2 { font-size: 22px; }
}