body {
    background-color: #fdfdbd;
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    color: #555;
}

#app-container {
    text-align: center;
    background: #fffdf0;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
    max-width: 800px;
    transition: max-width 0.3s ease;
}

.hidden {
    display: none !important;
}

/* Instructions & Setup */
#instructions-area {
    margin-bottom: 20px;
    font-size: 16px;
    line-height: 1.5;
}

#setup-area {
    margin: 20px 0;
}

#participant-info, #calibration-box {
    padding: 20px;
    background: #fdfdf0;
    border: 1px dashed #c9c9a0;
    border-radius: 6px;
    text-align: left;
    margin-bottom: 20px;
}

#participant-info h3, #calibration-box h3 {
    margin-top: 0;
    color: #4a4a32;
    text-align: center;
}

/* Participant Fields */
.input-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    margin-top: 15px;
}

.input-group {
    display: flex;
    justify-content: space-between;
    width: 280px;
    align-items: center;
}

.input-group label {
    font-weight: bold;
    color: #4a4a32;
}

.input-group input, .input-group select {
    padding: 8px;
    border: 1px solid #c9c9a0;
    border-radius: 4px;
    font-size: 16px;
    width: 150px;
    box-sizing: border-box;
}

#calibration-box p {
    text-align: center;
}

.calib-options {
    margin: 15px auto;
    padding: 10px;
    background-color: #fefecb;
    border: 1px solid #e0e0b4;
    border-radius: 6px;
    display: inline-block;
    text-align: left;
    width: fit-content;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.calib-options label {
    cursor: pointer;
    margin-left: 5px;
    line-height: 1.8;
}

#calib-btn {
    background-color: #e0e0b4;
    font-weight: bold;
    font-size: 18px;
    display: block;
    margin: 15px auto 0 auto;
}

#calib-btn.active {
    background-color: #ffbaba;
    border-color: #ff7a7a;
}

/* Progress Bar */
#progress-container {
    margin-bottom: 20px;
    width: 100%;
}

progress {
    width: 100%;
    height: 20px;
    accent-color: #7a7a5c;
}

#progress-text {
    margin-top: 5px;
    font-weight: bold;
    color: #7a7a5c;
}

/* Buttons and Grid */
#controls {
    margin-bottom: 20px;
}

button {
    font-size: 18px;
    padding: 10px 20px;
    cursor: pointer;
    border-radius: 6px;
    border: 1px solid #ccc;
    background-color: #fff;
    transition: background-color 0.2s;
    margin: 5px;
}

button:hover {
    background-color: #f0f0f0;
}

/* Match Step 2 button font weight and size to Step 1 header */
#start-btn {
    font-weight: bold;
    font-size: 1.17em; /* Matches h3 default size */
}

#consonant-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 20px;
    justify-items: center;
}

.consonant-btn {
    width: 100px;
    height: 100px;
    background-color: #fefecb;
    border: 1px solid #c9c9a0;
    border-radius: 8px;
    font-size: 24px;
    color: #7a7a5c;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    justify-content: center;
    align-items: center;
}

.consonant-btn:hover {
    background-color: #f5f5a1;
}

.grid-spacer {
    width: 100px;
    height: 100px;
    visibility: hidden;
    pointer-events: none;
}

.correct-highlight {
    background-color: #a8e6cf !important;
    border-color: #1d7a5a !important;
    color: #0b4a34 !important;
}

/* Tables */
table {
    border-collapse: collapse;
    margin: 20px auto;
}

th, td {
    border: 1px solid #ccc;
    width: 45px;
    height: 45px;
    text-align: center;
    font-size: 14px;
}

th {
    background-color: #f0f0f0;
    font-weight: bold;
}

.action-buttons {
    margin-top: 20px;
}

/* --- TWO COLUMN START SCREEN LAYOUT --- */
#app-container.two-column-mode {
    max-width: 950px;
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    grid-template-areas: 
        "title instructions"
        "participant calibration"
        "participant controls";
    gap: 10px 40px;
    align-items: start;
    text-align: left;
}

#app-container.two-column-mode #setup-area {
    display: contents; 
}

#app-container.two-column-mode #phase-title {
    grid-area: title;
    margin-top: 0;
    margin-bottom: 10px;
}

#app-container.two-column-mode #instructions-area {
    grid-area: instructions;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
}

#app-container.two-column-mode #participant-info {
    grid-area: participant;
    margin: 0;
}

#app-container.two-column-mode #calibration-box {
    grid-area: calibration;
    margin: 0;
}

#app-container.two-column-mode #controls {
    grid-area: controls;
    margin: 0;
    text-align: left; /* Align button to left edge */
}

#app-container.two-column-mode #participant-info h3,
#app-container.two-column-mode #calibration-box h3,
#app-container.two-column-mode #calibration-box p {
    text-align: left;
}

#app-container.two-column-mode .input-wrapper {
    align-items: flex-start;
}

#app-container.two-column-mode .calib-options {
    margin: 15px 0;
}