/* ========================================
   SUBJECTS PAGE - CSS VARIABLES VERSION
   ======================================== */

:root {
    --st-primary: #0071e3;
    --st-bg: var(--bg-tertiary);
    --st-card: var(--card-bg);
    --st-text: var(--text-primary);
    --st-text-light: var(--text-secondary);
    --st-border: var(--border-subtle);
    --st-radius: var(--radius-md);
}

body.dark-theme {
    --st-primary: #5b9fff;
}

/* ========================================
   LAYOUT
   ======================================== */

.sub-flex {
    display: flex;
    border-radius: 100px;
}

/* ========================================
   SIDEBAR
   ======================================== */

#st-sidebar-root {
    width: 220px;
    background: var(--card-bg);
    border-right: 1px solid var(--st-border);
    display: flex;
    flex-direction: column;
    padding: 15px;
    transition: background-color var(--transition-normal);
}

.st-nav-header {
    font-size: 10px;
    font-weight: 700;
    color: var(--st-text-light);
    letter-spacing: 0.5px;
    margin-bottom: 15px;
    text-transform: uppercase;
}

.st-subject-pill {
    padding: 10px;
    border-radius: var(--radius-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    transition: background var(--transition-fast);
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 4px;
    color:  var(--text-primary);
}

.st-subject-pill:hover {
    background: var(--bg-hover);
}

.st-subject-pill.st-active {
    background: #eef7ff;
    color: var(--st-primary);
}

body.dark-theme .st-subject-pill.st-active {
    background: rgba(91, 159, 255, 0.15);
    color: var(--st-primary);
}

.st-dot {
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
    margin-right: 10px;
    flex-shrink: 0;
}

.st-btn-new-sub {
    margin-top: auto;
    padding: 8px;
    border: 1px dashed var(--st-border);
    border-radius: var(--radius-md);
    background: transparent;
    cursor: pointer;
    color: var(--st-primary);
    font-size: 12px;
    transition: all var(--transition-fast);
}

.st-btn-new-sub:hover {
    background: var(--bg-hover);
    border-style: solid;
}

/* ========================================
   WORKSPACE
   ======================================== */

#st-main-canvas {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--card-bg);
    position: relative;
    transition: background-color var(--transition-normal);
}

.st-canvas-head {
    padding: 20px 25px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.st-canvas-head h2 {
    color: var(--text-primary);
}

.st-canvas-tabs {
    display: flex;
    gap: 20px;
    padding: 0 25px;
    border-bottom: 1px solid var(--st-border);
    margin-top: 15px;
}

.st-tab-link {
    padding: 10px 0;
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-primary);
    position: relative;
    transition: color var(--transition-fast);
}

.st-tab-link:hover {
    color:  var(--text-primary);
}

.st-tab-link.st-active {
    color: var(--text-primary);
}

.st-tab-link.st-active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--st-primary);
}

/* ========================================
   NOTES ENGINE
   ======================================== */

.st-notes-split {
    display: flex;
    height: 100%;
    overflow: hidden;
}

.st-notes-sidebar {
    width: 180px;
    border-right: 1px solid var(--st-border);
    padding: 10px;
    overflow-y: auto;
    background: var(--card-bg);
}

.st-note-entry {
    padding: 10px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    margin-bottom: 6px;
    background: var(--card-bg);
    border: 1px solid var(--st-border);
    font-size: 12px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.st-note-entry:hover {
    background: var(--bg-hover);
}

.st-note-entry.st-active {
    border-color: var(--st-primary);
    background: rgba(0, 113, 227, 0.05);
}

body.dark-theme .st-note-entry.st-active {
    background: rgba(91, 159, 255, 0.1);
}

.st-editor-zone {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 25px;
    overflow-y: auto;
}

.st-editor-bar {
    display: flex;
    gap: 8px;
    margin-bottom: 15px;
}

.st-editor-title {
    font-size: 24px;
    font-weight: 700;
    border: none;
    outline: none;
    margin-bottom: 10px;
    width: 100%;
    background: transparent;
    color:  var(--text-primary);
}

.st-editor-title::placeholder {
    color: var(--input-placeholder);
}

.st-rich-area {
    flex: 1;
    outline: none;
    font-size: 15px;
    line-height: 1.5;
    min-height: 200px;
    color:  var(--text-primary);
}

.st-rich-area img {
    max-width: 100%;
    border-radius: var(--radius-md);
    margin: 10px 0;
    box-shadow: var(--shadow-sm);
}

/* ========================================
   LISTS (DOCUMENTS & TASKS)
   ======================================== */

.st-content-wrapper {
    padding: 20px;
    max-width: 800px;
    width: 100%;
    margin: 0 auto;
}

.st-list-row {
    display: flex;
    align-items: center;
    padding: 12px;
    background: var(--card-bg);
    border: 1px solid var(--st-border);
    border-radius: var(--radius-md);
    margin-bottom: 8px;
    transition: all var(--transition-fast);
}

.st-list-row:hover {
    background: var(--bg-hover);
    box-shadow: var(--shadow-sm);
}

.st-row-info {
    flex: 1;
    padding-right: 10px;
}

.st-row-info b {
    color: var(--text-primary);
}

.st-row-info small {
    color: var(--st-text-light);
}

.st-row-actions {
    display: flex;
    gap: 8px;
}

/* ========================================
   BUTTONS
   ======================================== */

.st-btn {
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    border: none;
    font-size: 11px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.st-btn-blue {
    background: var(--st-primary);
    color: var(--text-inverted);
}

.st-btn-blue:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.st-btn-gray {
    background: var(--bg-hover);
    color:  var(--text-primary);
}

.st-btn-gray:hover {
    background: var(--bg-active);
}

.st-btn-red {
    background: #fff0f0;
    color: #ff3b30;
}

body.dark-theme .st-btn-red {
    background: rgba(239, 68, 68, 0.15);
    color: #ef4444;
}

.st-btn-red:hover {
    opacity: 0.9;
}

/* ========================================
   MODALS
   ======================================== */

.st-modal-mask {
    position: fixed;
    inset: 0;
    background: var(--modal-overlay);
    backdrop-filter: blur(4px);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 5000;
}

.st-modal-mask.zx1_state_is_active {
    display: flex;
}

.st-modal-container {
    background: var(--bg-primary);
    padding: 25px;
    border-radius: var(--radius-xl);
    width: 340px;
    box-shadow: var(--shadow-xl);
    margin-top: 300px;
    transition: background-color var(--transition-normal);
}

.st-modal-label {
    display: block;
    font-size: 11px;
    font-weight: 700;
    color: var(--st-text-light);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.st-input-field {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--input-border);
    border-radius: var(--radius-md);
    margin-bottom: 15px;
    font-size: 13px;
    outline-color: var(--st-primary);
    background: var(--input-bg);
    color: var(--text-primary);
    transition: background var(--transition-fast), border-color var(--transition-fast);
}

.st-input-field:focus {
    background: var(--input-focus-bg);
    border-color: var(--st-primary);
}

.st-input-field::placeholder {
    color: var(--input-placeholder);
}

.yl5_dropdown_select_element {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--input-border);
    border-radius: var(--radius-md);
    margin-bottom: 15px;
    font-size: 13px;
    outline-color: var(--st-primary);
    background: var(--input-bg);
    color:  var(--text-primary);
    cursor: pointer;
    transition: background var(--transition-fast), border-color var(--transition-fast);
}

.yl5_dropdown_select_element:focus {
    background: var(--input-focus-bg);
    border-color: var(--st-primary);
}

.st-color-row {
    display: flex;
    gap: 8px;
    margin-bottom: 15px;
}

.st-color-circle {
    width: 24px;
    height: 24px;
    border-radius: var(--radius-full);
    cursor: pointer;
    border: 2px solid transparent;
    transition: all var(--transition-fast);
}

.st-color-circle:hover {
    transform: scale(1.1);
}

.st-color-circle.st-selected {
    border-color:  var(--text-primary);
    box-shadow: 0 0 0 2px var(--card-bg), 0 0 0 4px var(--text-primary);
}

/* ========================================
   FULL VIEWER
   ======================================== */

#st-full-viewer {
    position: fixed;
    inset: 0;
    background: var(--bg-primary);
    z-index: 6000;
    display: none;
    flex-direction: column;
    width: 900px;
    height: 300px;
    margin: auto;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    transition: background-color var(--transition-normal);
}

#st-view-label {
    color:  var(--text-primary);
}

#st-view-canvas {
    color: var(--text-primary);
}

/* ========================================
   EMPTY STATES
   ======================================== */

.st-empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-light);
}

.st-empty-state h3 {
    color: var(--text-secondary);
    font-size: 16px;
    margin-bottom: 8px;
}

/* ========================================
   DOCUMENT UPLOAD
   ======================================== */

.st-doc-preview {
    max-width: 100%;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

/* ========================================
   RESPONSIVE
   ======================================== */

@media (max-width: 768px) {
    #st-sidebar-root {
        width: 60px;
        padding: 10px 5px;
    }

    .st-subject-pill span:not(.st-dot),
    .st-nav-header,
    .st-btn-new-sub {
        display: none;
    }

    .st-notes-sidebar {
        width: 100px;
    }

    .st-row-actions .st-btn {
        padding: 6px 8px;
    }

    .st-modal-container {
        width: 90%;
        max-width: 340px;
    }

    .st-canvas-head {
        padding: 15px;
    }

    .st-editor-zone {
        padding: 15px;
    }

    .st-editor-title {
        font-size: 20px;
    }
}

/* ========================================
   SCROLLBAR
   ======================================== */

.st-notes-sidebar::-webkit-scrollbar,
.st-editor-zone::-webkit-scrollbar {
    width: 6px;
}

.st-notes-sidebar::-webkit-scrollbar-track,
.st-editor-zone::-webkit-scrollbar-track {
    background: transparent;
}

.st-notes-sidebar::-webkit-scrollbar-thumb,
.st-editor-zone::-webkit-scrollbar-thumb {
    background: var(--border-primary);
    border-radius: 3px;
}

.st-notes-sidebar::-webkit-scrollbar-thumb:hover,
.st-editor-zone::-webkit-scrollbar-thumb:hover {
    background: var(--border-focus);
}

/* ========================================
   ANIMATIONS
   ======================================== */

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.st-modal-container {
    animation: fadeIn 0.3s ease;
}

.st-list-row {
    animation: fadeIn 0.2s ease;
}

/* ========================================
   MODAL ACTIONS
   ======================================== */

.kd3_action_buttons_row_container {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

.wp6_generic_clickable_button {
    flex: 1;
    padding: 10px;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    font-weight: 600;
    font-size: 13px;
    transition: all var(--transition-fast);
}

.qc9_primary_action_button_style {
    background: var(--st-primary);
    color: var(--text-inverted);
}

.qc9_primary_action_button_style:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.hx7_secondary_action_button_style {
    background: var(--bg-hover);
    color:  var(--text-primary);
}

.hx7_secondary_action_button_style:hover {
    background: var(--bg-active);
}

/* ========================================
   SECTION TITLES
   ======================================== */

.st-content-wrapper h3 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 15px;
    color:  var(--text-primary);
}

.st-content-wrapper p {
    color: var(--st-text-light);
    font-size: 11px;
    margin-bottom: 15px;
}