:root {
    --bg-color: #f8f7f4;
    --panel-bg: #ffffff;
    --text-primary: #333333;
    --text-secondary: #555555;
    --border-color: #e0e0e0;
    --accent-color: #8B4513; /* SaddleBrown - a rich, reddish-brown */
    --accent-color-light: #f5f0e9;
    --light-gray-bg: #f5f5f5;
    --light-gray-border: #dcdcdc;
    --font-main: 'Montserrat', sans-serif;
    --font-serif: 'Playfair Display', serif;
    --font-script: 'Pinyon Script', cursive;
}

/* --- Base & Layout --- */
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
    font-family: var(--font-main);
    background-color: var(--bg-color);
    color: var(--text-primary);
    padding: 2rem;
}
.container {
    display: grid;
    grid-template-columns: 450px 1fr;
    gap: 2rem;
    max-width: 1600px;
    margin: auto;
}
@media (max-width: 1200px) {
    .container { grid-template-columns: 1fr; }
    body { padding: 1rem; }
}

/* --- Left Panel Controls --- */
.left-panel {
    /* Removed overflow-y, max-height, and padding-right to allow natural height */
}
.left-panel h1 {
    font-family: var(--font-serif);
    text-align: center;
    margin-bottom: 2rem;
    color: var(--accent-color);
    font-weight: 700;
}
.panel {
    background-color: var(--panel-bg);
    border-radius: 8px;
    padding: 0;
    margin-bottom: 1.5rem;
    background: none;
}
.panel h3 {
    font-family: var(--font-serif);
    color: var(--accent-color);
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
    font-weight: 700;
}
.form-group { margin-bottom: 1.5rem; }
label {
    font-weight: 500;
    font-size: 0.9rem;
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}
input[type="text"], textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
    font-family: var(--font-main);
    background-color: #fff;
}
textarea { resize: vertical; min-height: 80px; }

/* Highlight Skills Pills */
.highlight-options {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}
.highlight-option {
    padding: 0.6rem 1.2rem;
    border-radius: 20px;
    background-color: transparent;
    border: 1px solid var(--light-gray-border);
    color: var(--text-primary);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}
.highlight-option:hover { background-color: var(--accent-color-light); }
.highlight-option.active {
    background-color: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}
.highlight-option.add-new { border-style: dashed; }

/* Color Options */
.color-options { display: grid; grid-template-columns: repeat(auto-fill, minmax(45px, 1fr)); gap: 0.75rem; }
.color-option {
    width: 100%;
    height: 45px;
    border-radius: 8px;
    border: 2px solid var(--border-color);
    cursor: pointer;
    position: relative;
    transition: transform 0.2s;
}
.color-option:hover { transform: scale(1.05); }
.color-option.active {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px var(--accent-color);
}
.color-option.active::after {
    content: '✔';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 1.5rem;
    font-weight: bold;
    text-shadow: 0 0 4px rgba(0,0,0,0.6);
}

/* Extras Section */
.logo-upload { display: flex; align-items: center; gap: 1rem; }
.logo-preview { width: 60px; height: 60px; border: 1px dashed var(--border-color); display: grid; place-items: center; overflow: hidden; border-radius: 6px; }
.logo-preview img { max-width: 100%; max-height: 100%; }
#uploadLogoBtn {
    flex-grow: 1;
    padding: 0.75rem;
    background-color: var(--light-gray-bg);
    border: 1px solid var(--light-gray-border);
    border-radius: 6px;
    color: var(--text-secondary);
    font-weight: 500;
}
.qr-toggle-group { display: flex; align-items: center; justify-content: space-between; }
.toggle-switch {
    width: 50px;
    height: 28px;
    position: relative;
    appearance: none;
    background: var(--light-gray-border);
    border-radius: 28px;
    cursor: pointer;
    transition: background-color 0.2s;
}
.toggle-switch::before {
    content: '';
    position: absolute;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: white;
    top: 3px;
    left: 4px;
    transition: 0.2s;
    box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}
.toggle-switch:checked { background: var(--accent-color); }
.toggle-switch:checked::before { transform: translateX(21px); }
.hidden { display: none; }
.qr-options { margin-top: 1rem; }
.add-highlight-form { border-top: 1px solid var(--border-color); margin-top: 1rem; padding-top: 1rem; }
.add-highlight-form .form-actions { display: flex; gap: 0.5rem; justify-content: flex-end; }

/* Main Buttons */
.btn-generate {
    width: 100%;
    background-color: var(--accent-color);
    color: white;
    font-size: 1.1rem;
    font-weight: 600;
    padding: 1rem;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    margin-top: 2rem; /* Added to give space from the last panel */
}
.btn-generate:hover { background-color: #6B2E0E; }
.actions {
    display: flex;
    gap: 1rem;
    margin-top: 0; /* Removed extra top margin as certificate-wrapper now has margin-bottom */
}
.actions button {
    flex-grow: 1;
    padding: 0.75rem;
    background-color: var(--panel-bg);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-weight: 500;
    border-radius: 6px;
    cursor: pointer;
}
.actions button:hover { background-color: var(--light-gray-bg); }

/* --- Right Panel & Certificate --- */
.right-panel {
    display: flex;
    flex-direction: column;
    /* Removed flex-grow: 1; so it doesn't stretch */
}
.certificate-wrapper {
    background: white;
    padding: 1.5rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.07);
    border-radius: 8px;
    /* Removed flex-grow: 1; */
    margin-bottom: 1.5rem; /* Added consistent space below certificate */
}
.certificate {
    background-color: #ffffff;
    width: 100%;
    aspect-ratio: 1.414 / 1;
    position: relative;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 5%;
    --cert-border-color: #B89B4E;
    --cert-shape-color: #3A8D4A;
    --cert-subtitle-color: #D1A74F;
    --cert-primary-text-color: #1a1a1a;
}
.cert-border { position: absolute; top: 2.5%; left: 2.5%; right: 2.5%; bottom: 2.5%; border: 4px double var(--cert-border-color); z-index: 1; }
.cert-content { position: relative; z-index: 2; width: 100%; }
.cert-header { display: flex; justify-content: center; align-items: center; gap: 1rem; margin-bottom: 2%; }
.cert-logo { max-width: 21%; }
.cert-school-name { font-size: 2.2vw; font-weight: 700; color: var(--cert-shape-color); }
.cert-title { font-size: 1.8vw; font-weight: 600; letter-spacing: 2px; margin-bottom: 0; color: var(--cert-border-color); }
.cert-subtitle { font-size: 1.1vw; font-weight: 600; color: var(--cert-subtitle-color); margin-bottom: 2%; }
.cert-event-name { font-size: 1.1vw; margin-bottom: 2%; }
.cert-highlight-script { font-family: var(--font-script); font-size: 4vw; line-height: 1; color: var(--cert-primary-text-color); margin-bottom: 1%; }
.cert-highlight-attrs { font-size: 0.9vw; letter-spacing: 1px; margin-bottom: 4%; }
.cert-concluding-message { font-size: 1.1vw; margin-bottom: 2%; }
.cert-footer { display: flex; justify-content: space-between; align-items: flex-end; width: 80%; margin: 0 auto; }
.cert-signature-area, .cert-qr-area { flex-basis: 40%; }
.signature-line { border-bottom: 1px solid #1a1a1a; width: 60%; margin: 0 auto 0.5rem auto; }
.cert-qr-area p { font-size: 0.8vw; }
.cert-qr-code { width: 10vw; max-width: 100px; margin: 0 auto; }

/* Print Styles */
@media print {
    body * { visibility: hidden; }
    .certificate, .certificate * { visibility: visible; }
    .certificate { position: absolute; left: 0; top: 0; width: 100vw; height: 100vh; margin: 0; padding: 0; box-shadow: none; border-radius: 0; }
}