/* General Styling & Variables */
:root {
    --primary-color: #4A90E2;
    --primary-hover: #357ABD;
    --danger-color: #D0021B;
    --danger-hover: #a80015;
    --border-radius: 8px;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

/* Light Mode Variables */
body.light-mode {
    --bg-color: #F4F7F9;
    --surface-color: #FFFFFF;
    --text-color: #333333;
    --text-muted-color: #777;
    --border-color: #E0E6ED;
    --input-bg-color: #FFF;
    --sidebar-bg: #FFFFFF;
}

/* Dark Mode Variables */
body.dark-mode {
    --bg-color: #1a1a1a;
    --surface-color: #252525;
    --text-color: #E0E0E0;
    --text-muted-color: #999;
    --border-color: #3a3a3a;
    --input-bg-color: #333;
    --sidebar-bg: #202020;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    transition: background-color 0.3s, color 0.3s;
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* --- New Editor Page --- */
#editor-page-new {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

.editor-sidebar {
    width: 280px;
    background-color: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    padding: 20px;
    transition: background-color 0.3s, border-color 0.3s;
}

.sidebar-header { display: flex; align-items: center; gap: 10px; font-size: 1.2rem; margin-bottom: 30px; color: var(--primary-color); }
.project-details { flex-grow: 1; }
.sidebar-footer { text-align: center; font-size: 0.8rem; color: var(--text-muted-color); padding-top: 20px; border-top: 1px solid var(--border-color); }
.sidebar-actions .btn, .sidebar-actions a.btn { width: 100%; margin-bottom: 10px; justify-content: center; }

.editor-main-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.editor-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    background-color: var(--surface-color);
    border-bottom: 1px solid var(--border-color);
    transition: background-color 0.3s, border-color 0.3s;
}

.toolbar-group { display: flex; align-items: center; gap: 5px; }
.editor-toolbar button {
    background: none;
    border: 1px solid transparent;
    color: var(--text-muted-color);
    font-size: 1rem;
    width: 36px;
    height: 36px;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: background-color 0.2s, color 0.2s;
}
.editor-toolbar button:hover { background-color: var(--bg-color); color: var(--text-color); }
.theme-switcher { gap: 10px; }
.theme-switcher .theme-btn.active { color: var(--primary-color); background-color: var(--bg-color); }

/* CodeMirror Styling */
.CodeMirror {
    flex-grow: 1;
    height: auto;
    font-size: 14px;
    line-height: 1.5;
}

/* --- Dashboard Page --- */
.navbar { background-color: var(--surface-color); padding: 1rem 0; border-bottom: 1px solid var(--border-color); box-shadow: 0 2px 4px rgba(0,0,0,0.05); }
.navbar .container { display: flex; justify-content: space-between; align-items: center; }
.nav-brand { display: flex; align-items: center; gap: 10px; font-size: 1.2rem; font-weight: 600; color: var(--primary-color); }
.nav-user { display: flex; align-items: center; gap: 15px; }
#logout-button { padding: 5px 10px; font-size: 0.9rem; }

.dashboard-header { display: flex; justify-content: space-between; align-items: center; margin: 30px 0; }
.search-container { position: relative; margin-bottom: 30px; }
.search-container .fa-search { position: absolute; left: 15px; top: 50%; transform: translateY(-50%); color: #999; }
#search-input { width: 100%; padding: 12px 12px 12px 40px; border-radius: var(--border-radius); border: 1px solid var(--border-color); font-size: 1rem; background-color: var(--input-bg-color); color: var(--text-color); }

.projects-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 20px; }
.project-card { background-color: var(--surface-color); border-radius: var(--border-radius); box-shadow: var(--shadow); padding: 20px; display: flex; flex-direction: column; transition: transform 0.2s ease, box-shadow 0.2s ease; }
.project-card:hover { transform: translateY(-5px); box-shadow: 0 8px 16px rgba(0,0,0,0.1); }
.card-header h3 { margin-bottom: 5px; }
.card-header .date { font-size: 0.8rem; color: var(--text-muted-color); }
.card-content { flex-grow: 1; margin: 15px 0; color: var(--text-muted-color); font-size: 0.9rem; }
.card-actions { display: flex; gap: 10px; margin-top: auto; border-top: 1px solid var(--border-color); padding-top: 15px; }
.card-actions .btn { flex: 1; justify-content: center; padding: 8px; }
.card-actions .btn-danger { background-color: transparent; border: 1px solid var(--danger-color); color: var(--danger-color); }
.card-actions .btn-danger:hover { background-color: var(--danger-color); color: white; }

/* --- General Components --- */
.btn { padding: 10px 20px; border: none; border-radius: var(--border-radius); cursor: pointer; font-weight: 600; text-decoration: none; display: inline-flex; align-items: center; gap: 8px; transition: all 0.2s ease-in-out; }
.btn-primary { background-color: var(--primary-color); color: white; }
.btn-primary:hover { background-color: var(--primary-hover); }
.btn-secondary { background-color: #f0f0f0; color: #333; border: 1px solid #E0E6ED; }
.btn-secondary:hover { background-color: #e0e0e0; }
.btn-danger { background-color: var(--danger-color); color: white; }
.btn-danger:hover { background-color: var(--danger-hover); }

.form-group { margin-bottom: 15px; }
.form-group label { display: block; font-weight: 600; margin-bottom: 5px; font-size: 0.9rem; }
.form-group input, .form-group textarea { width: 100%; padding: 10px; border: 1px solid var(--border-color); border-radius: var(--border-radius); font-size: 1rem; font-family: inherit; background-color: var(--input-bg-color); color: var(--text-color); }

.hidden { display: none !important; }
#loading-indicator { text-align: center; padding: 40px; font-size: 1.2rem; color: var(--text-muted-color); }

/* --- Modals --- */
.modal-container { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0, 0, 0, 0.6); display: flex; justify-content: center; align-items: center; z-index: 1000; }
.modal-content { background: var(--surface-color); padding: 30px; border-radius: var(--border-radius); text-align: center; box-shadow: 0 5px 15px rgba(0,0,0,0.3); width: 90%; max-width: 400px; }
.modal-content p { margin-bottom: 20px; font-size: 1.1rem; }
.modal-buttons { display: flex; gap: 15px; justify-content: center; }
.login-form { text-align: left; }
.login-error { background-color: #ffebee; color: #c62828; padding: 10px; border-radius: var(--border-radius); margin-bottom: 15px; text-align: center; font-size: 0.9rem; }

.preview-modal-content { width: 90%; height: 90%; background: var(--surface-color); border-radius: var(--border-radius); display: flex; flex-direction: column; overflow: hidden; }
.preview-header { padding: 10px 20px; border-bottom: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; }
.preview-header .close-btn { background: none; border: none; font-size: 1.2rem; cursor: pointer; color: var(--text-muted-color); }
#preview-frame { flex-grow: 1; border: none; }