:root {
    --panel-width: 550px;
    /* Panel genişletildi */
    --primary-color: #007bff;
    --primary-hover-color: #0056b3;
    --bg-color: #f4f7f9;
    --card-bg-color: #ffffff;
    --text-color: #212529;
    --text-muted-color: #6c757d;
    --border-color: #dee2e6;
    --transition-speed: 0.3s;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

* {
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
}

body.settings-active {
    overflow: hidden;
}

/* Main Usage View */
#usage-view {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 2rem;
    min-height: 100vh;
}

.usage-header {
    width: 100%;
    max-width: 700px;
    text-align: center;
    margin-bottom: 1rem;
    position: relative;
}

.usage-header h1 {
    margin: 0 0 0.5rem 0;
}

.app-description {
    margin: 0 0 1rem 0;
    color: var(--text-muted-color);
}

#open-settings-btn {
    position: static;
    top: 0;
    right: 0;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.5rem;
    padding: 0.5rem;
    transition: transform 0.3s ease-in-out;
}

#open-settings-btn:hover {
    transform: rotate(90deg);
    /* Mouse üzerine gelince 90 derece döndürür */
}

.card {
    width: 100%;
    max-width: 700px;
    background-color: var(--card-bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow);
}

.card h2 {
    margin: 0 0 1rem 0;
}

.usage-footer {
    margin-top: auto;
    padding-top: 2rem;
    color: var(--text-muted-color);
    font-size: 0.9rem;
}

.usage-footer a {
    color: var(--primary-color);
    text-decoration: none;
    cursor: pointer;
}

.usage-footer a:hover {
    text-decoration: underline;
}

/* Settings Panel */
#settings-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.4);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-speed);
    z-index: 999;
}

#settings-view {
    position: fixed;
    top: 0;
    right: 0;
    width: 100%;
    max-width: var(--panel-width);
    height: 100%;
    background-color: var(--card-bg-color);
    box-shadow: -5px 0 25px rgba(0, 0, 0, 0.1);
    transform: translateX(100%);
    transition: transform var(--transition-speed);
    display: flex;
    flex-direction: column;
    z-index: 1000;
}

body.settings-active #settings-overlay {
    opacity: 1;
    visibility: visible;
}

body.settings-active #settings-view {
    transform: translateX(0);
}

.settings-header,
.settings-footer {
    flex-shrink: 0;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.settings-footer {
    border-bottom: none;
    border-top: 1px solid var(--border-color);
    background-color: #f8f9fa;
}

.settings-header h2 {
    margin: 0;
}

#close-settings-btn {
    font-size: 2rem;
    font-weight: 300;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-muted-color);
}

.settings-content {
    flex-grow: 1;
    overflow-y: auto;
    padding: 1.5rem;
}

.settings-card {
    margin-bottom: 2rem;
}

.settings-card h3 {
    margin-top: 0;
}

.settings-help {
    font-size: 0.9rem;
    color: var(--text-muted-color);
    margin-top: -0.5rem;
    margin-bottom: 1.5rem;
}

.field-row {
    padding-bottom: 1.5rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid #f1f3f5;
}

.field-row:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.field-header {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.field-processors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
}

.processor-group label {
    font-weight: 500;
    font-size: 0.9rem;
    display: block;
    margin-bottom: 0.25rem;
}

.field-trim-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1.5rem;
}

/* Template Builder Pills */
#template-pills-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.template-pill {
    background-color: #e9ecef;
    border: 1px solid #dee2e6;
    color: #495057;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.9rem;
    cursor: pointer;
    transition: background-color 0.2s;
}

.template-pill:hover {
    background-color: #ced4da;
}

/* Shared Component Styles */
input[type="text"],
select {
    width: 100%;
    padding: 0.6rem;
    border-radius: 5px;
    border: 1px solid var(--border-color);
    font-size: 1rem;
}

button {
    border: none;
    border-radius: 5px;
    padding: 0.75rem 1.25rem;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s;
}

.primary-btn {
    background-color: var(--primary-color);
    color: white;
}

.primary-btn:hover {
    background-color: var(--primary-hover-color);
}

.remove-field-btn {
    background: none;
    color: #dc3545;
    padding: 0.5rem;
    font-weight: bold;
    font-size: 1.2rem;
}

.output-container {
    display: flex;
    gap: 10px;
}

.output-container input {
    flex-grow: 1;
}

#copy-btn {
    /* Add transition for a smooth color change */
    transition: background-color 0.2s, color 0.2s;
}

#copy-btn.is-copied {
    background-color: #28a745;
    /* A standard success green */
    color: white;
}

.header-icons {
    position: absolute;
    top: 0;
    right: 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    /* İkonlar arası boşluk */
}

#github-link {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-color);
    /* Normal metin rengini alır */
    padding: 0.5rem;
}

#github-link:hover {
    color: var(--primary-color);
    /* Üzerine gelince ana renge döner */
}