:root {
    --bg-color: #FFFDF5;
    --text-color: #18181B;
    --accent-color: #FF4D00;
    --accent-hover: #E64500;
    --border-width: 3px;
    --shadow-offset: 6px;
    --neo-shadow: 4px 4px 0px var(--text-color);
    --neo-shadow-hover: 6px 6px 0px var(--text-color);
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    overflow-x: hidden;
    min-height: 100vh;
    -webkit-tap-highlight-color: transparent;
    margin: 0;
}

h1,
h2,
h3,
.brand-font {
    font-family: 'Space Grotesk', sans-serif;
}

/* Neo-Brutalist Components */
.neo-box {
    border: var(--border-width) solid var(--text-color);
    background: white;
    box-shadow: var(--shadow-offset) var(--shadow-offset) 0px var(--text-color);
    transition: all 0.2s ease;
}

.neo-btn {
    background-color: var(--accent-color);
    color: white;
    border: var(--border-width) solid var(--text-color);
    box-shadow: var(--neo-shadow);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    cursor: pointer;
    transition: all 0.1s cubic-bezier(0, 0, 0.2, 1);
    will-change: transform;
    backface-visibility: hidden;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.neo-btn:hover {
    transform: translate(-3px, -3px);
    box-shadow: var(--neo-shadow-hover);
    background-color: var(--accent-hover);
}

.neo-btn:active {
    transform: translate(2px, 2px);
    box-shadow: 2px 2px 0px var(--text-color);
}

.neo-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.neo-btn-secondary {
    background-color: white;
    color: var(--text-color);
}

.neo-btn-secondary:hover {
    background-color: #f4f4f5;
}

/* Input Styling */
.neo-input {
    width: 100%;
    padding: 1rem;
    border: var(--border-width) solid var(--text-color);
    background: white;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.1rem;
    outline: none;
    box-shadow: 4px 4px 0px rgba(0, 0, 0, 0.1);
    box-sizing: border-box;
}

.neo-input:focus {
    box-shadow: 4px 4px 0px var(--accent-color);
}

/* Selection Options */
.option-label {
    display: flex;
    align-items: center;
    padding: 1rem;
    border: 2px solid var(--text-color);
    margin-bottom: 0.75rem;
    cursor: pointer;
    transition: all 0.2s;
    background: white;
    position: relative;
    transform-origin: center;
    will-change: transform;
    backface-visibility: hidden;
}

.option-label:hover {
    background-color: #FFF4E5;
    transform: translate(-3px, -3px);
    box-shadow: 6px 6px 0px var(--text-color);
}

.option-label.selected {
    background-color: var(--text-color);
    color: white;
    box-shadow: 4px 4px 0px var(--accent-color);
    transform: translate(-2px, -2px);
}

.option-label.selected .checkmark {
    border-color: white;
    background-color: var(--accent-color);
    color: white;
}

.option-input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.key-hint {
    border: 1px solid var(--text-color);
    padding: 2px 6px;
    font-size: 0.75rem;
    border-radius: 4px;
    margin-left: auto;
    opacity: 0.6;
    font-family: monospace;
}

/* Progress Bar */
.progress-container {
    border-bottom: var(--border-width) solid var(--text-color);
    background: white;
}

.progress-bar {
    height: 8px;
    background: var(--accent-color);
    width: 0%;
    transition: width 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

/* Transitions */
.slide-container {
    position: relative;
    height: 100vh;
    width: 100%;
    overflow: hidden;
}

.slide {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -40%);
    width: 100%;
    max-width: 640px;
    opacity: 0;
    pointer-events: none;
    transition: all 0.5s cubic-bezier(0.19, 1, 0.22, 1);
    display: flex;
    flex-direction: column;
    padding: 2rem 1.5rem;
    box-sizing: border-box;
}

.slide.active {
    opacity: 1;
    pointer-events: all;
    transform: translate(-50%, -50%);
    z-index: 10;
    backface-visibility: hidden;
    -webkit-font-smoothing: antialiased;
}

.slide.past {
    opacity: 0;
    transform: translate(-50%, -60%);
    z-index: 0;
}

/* Multiple Choice Checkmark */
.checkmark {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 24px;
    height: 24px;
    border: 2px solid currentColor;
    margin-right: 12px;
    background: transparent;
    flex-shrink: 0;
}

.selected .checkmark::after {
    content: '✓';
    font-weight: 800;
    color: white;
    font-size: 16px;
}

/* Branding Badge */
.branding-badge {
    background: var(--text-color);
    color: white;
    padding: 0.5rem 1rem;
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 0.875rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    border: 2px solid var(--text-color);
    box-shadow: 3px 3px 0px var(--accent-color);
    margin-bottom: 2rem;
}

.branding-badge .dot {
    width: 8px;
    height: 8px;
    background: var(--accent-color);
    border-radius: 50%;
}

/* Step Content Layout Fixes */
.step-content {
    width: 100%;
}

.step-options {
    margin-top: 1.5rem;
    max-height: 50vh;
    overflow-y: auto;
    padding: 4px;
    /* for neo-shadow */
}

.step-actions {
    margin-top: 2rem;
    display: flex;
    gap: 1rem;
}

/* Media Queries */
@media (max-width: 640px) {
    :root {
        --shadow-offset: 4px;
    }

    .neo-box {
        box-shadow: 4px 4px 0px var(--text-color);
    }

    h1 {
        font-size: 2rem !important;
        line-height: 1.2;
    }

    h2 {
        font-size: 1.5rem !important;
        line-height: 1.3;
    }

    .neo-btn {
        padding: 0.75rem 1.25rem;
        font-size: 0.9rem;
    }

    .option-label {
        padding: 0.75rem;
    }

    .slide {
        padding: 1.5rem 1rem;
    }

    .step-actions {
        flex-direction: column;
    }
}

@keyframes shake {

    0%,
    100% {
        transform: translateX(0);
    }

    25% {
        transform: translateX(-5px);
    }

    75% {
        transform: translateX(5px);
    }
}

.shake {
    animation: shake 0.2s ease-in-out 0s 2;
}