/**
 * LightSkai Global Theme Styles
 *
 * @version 1.1.0
 *
 * This file provides consistent light and dark theme support across all pages.
 * Include this CSS file in all authenticated pages after navbar.css and after
 * styles.css (it must load last so the legacy-variable bridge can take effect).
 *
 * Theme is controlled by the `dark-theme` class, which theme-manager.js applies
 * to BOTH <html> and <body>.
 *
 * SINGLE SOURCE OF TRUTH:
 *   This file owns all theme variables. styles.css historically shipped its own
 *   parallel dark theme (.dark-theme scope, --bg-primary / --color-primary /
 *   --text-secondary family). Those two systems used different variable names
 *   and could not agree, which caused dark mode to render inconsistently.
 *   The "LEGACY VARIABLE BRIDGE" block below re-points styles.css's
 *   differently-named variables to this file's dark values under
 *   body.dark-theme, so the whole app themes from one place. Variables that
 *   already share a name resolve from this file's own body.dark-theme block.
 *   styles.css's light defaults are intentionally left alone.
 *
 * Changelog:
 *   1.1.0 — Added legacy-variable bridge so styles.css consumers theme correctly
 *           in dark mode. No light-mode behaviour changed.
 */

/* ===================================== */
/* LAYOUT CONTRACT - SHARED WIDTH        */
/* ===================================== */
/* Use this class on navbar-inner, page-header-content, and container
   to ensure pixel-perfect left-edge alignment across all components */
.app-width {
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 24px;
    padding-right: 24px;
}

/* ===================================== */
/* CSS VARIABLES - LIGHT THEME (DEFAULT) */
/* ===================================== */
:root {
    /* Brand Colors (overridden by branding-colors.js) */
    --brand-primary: #0EA5E9;
    --brand-primary-rgb: 14, 165, 233;
    --brand-secondary: #0EA5E9;
    --brand-secondary-rgb: 14, 165, 233;
    
    /* Background Colors */
    --bg-body: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    --bg-body-solid: #f8fafc;
    --bg-card: #ffffff;
    --bg-card-hover: #f8fafc;
    --bg-input: #ffffff;
    --bg-input-focus: #ffffff;
    --bg-secondary: #f1f5f9;
    --bg-tertiary: #e2e8f0;
    
    /* Text Colors */
    --text-primary: #1e293b;
    --text-secondary: #475569;
    --text-tertiary: #64748b;
    --text-muted: #94a3b8;
    --text-inverse: #ffffff;
    
    /* Border Colors */
    --border-primary: #e2e8f0;
    --border-secondary: #cbd5e1;
    --border-focus: var(--brand-primary);
    
    /* Shadow */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.08);
    
    /* Component-specific */
    --header-bg: #ffffff;
    --page-icon-bg: linear-gradient(135deg, #f0f9ff, #e0f2fe);
    --storage-bar-bg: #bae6fd;
    --storage-bar-fill: linear-gradient(90deg, #0EA5E9, #2563EB);
}

/* ===================================== */
/* CSS VARIABLES - DARK THEME           */
/* ===================================== */
body.dark-theme {
    /* Background Colors */
    --bg-body: #0f172a;
    --bg-body-solid: #0f172a;
    --bg-card: #1e293b;
    --bg-card-hover: #334155;
    --bg-input: #0f172a;
    --bg-input-focus: #1e293b;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    
    /* Text Colors */
    --text-primary: #f1f5f9;
    --text-secondary: #e2e8f0;
    --text-tertiary: #94a3b8;
    --text-muted: #64748b;
    --text-inverse: #0f172a;
    
    /* Border Colors */
    --border-primary: #334155;
    --border-secondary: #475569;
    --border-focus: var(--brand-primary);
    
    /* Shadow */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.4);
    --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.3);
    
    /* Component-specific */
    --header-bg: #1e293b;
    --page-icon-bg: linear-gradient(135deg, #1e3a5f, #1e293b);
    --storage-bar-bg: #334155;
    --storage-bar-fill: linear-gradient(90deg, #0EA5E9, #38bdf8);
}

/* ===================================== */
/* LEGACY VARIABLE BRIDGE (styles.css)   */
/* ===================================== */
/*
 * styles.css ships its own dark theme using a different variable family.
 * To keep ONE source of truth, we re-point styles.css's *differently-named*
 * variables to this file's dark values whenever dark mode is active.
 *
 * Only variables whose NAME differs from theme.css are remapped here.
 * Variables that share a name (--bg-card, --bg-input, --bg-secondary,
 * --text-primary, --text-muted, --text-inverse) are already set correctly
 * by the body.dark-theme block above and must NOT be redeclared — a CSS
 * variable that references itself (e.g. `--bg-card: var(--bg-card)`)
 * resolves to invalid, not to the inherited value.
 *
 * Specificity note: styles.css defines its dark values on `.dark-theme`
 * (0,1,0). This block uses `body.dark-theme` (0,1,1) AND theme.css loads
 * after styles.css — so this wins reliably without !important.
 *
 * styles.css's light defaults (:root, .light-theme) are deliberately NOT
 * touched here, so light mode behaves exactly as before.
 */
body.dark-theme {
    /* Backgrounds — styles.css-only names → theme.css dark values */
    --bg-primary: var(--bg-body-solid);
    --bg-overlay: #0f172a;
    --bg-hover: var(--bg-card-hover);

    /* Note on --text-secondary: it exists in BOTH files but with different
     * meanings (styles.css = muted gray, theme.css = near-primary). It is
     * intentionally NOT remapped — theme.css is the source of truth, so its
     * own body.dark-theme value (#e2e8f0) stands for all consumers. */

    /* Borders — styles.css-only names → theme.css dark values */
    --border-color: var(--border-primary);
    --border-light: var(--border-primary);
    --border-medium: var(--border-secondary);

    /* Primary colour — styles.css uses --color-primary; map to brand */
    --color-primary: var(--brand-primary);
    --color-primary-hover: var(--brand-secondary);
    --color-primary-light: var(--brand-primary);
    --color-secondary: var(--brand-secondary);

    /* Shadows — only styles.css-EXCLUSIVE names are set here.
     * --shadow-sm / --shadow-md are owned by theme.css's own dark block
     * above and are intentionally NOT redeclared (avoids clobbering).
     * --shadow-lg differs in value; --shadow-xl does not exist in theme.css. */
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6);
}

/* ===================================== */
/* BASE STYLES                           */
/* ===================================== */
body {
    background: var(--bg-body);
    color: var(--text-primary);
    transition: background-color 0.2s ease, color 0.2s ease;
}

/* Dark theme solid background (no gradient) */
body.dark-theme {
    background: var(--bg-body-solid);
}

/* ===================================== */
/* COMMON PAGE ELEMENTS                  */
/* ===================================== */

/* Page Header */
.page-header {
    background: var(--header-bg);
    border-bottom: 1px solid var(--border-primary);
}

.page-title {
    color: var(--text-primary);
}

.page-subtitle,
.page-description {
    color: var(--text-tertiary);
}

.page-icon {
    background: var(--page-icon-bg);
}

/* ===================================== */
/* CARDS                                 */
/* ===================================== */
.card,
.wl-card,
.link-card,
.insight-card,
.documents-section {
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    box-shadow: var(--shadow-card);
}

.card:hover,
.link-card:hover,
.insight-card:hover {
    border-color: var(--brand-primary);
}

.card-title,
.link-card-title {
    color: var(--text-primary);
}

.card-description,
.card-subtitle,
.link-card-description {
    color: var(--text-tertiary);
}

.card-header {
    border-bottom-color: var(--border-primary);
}

/* ===================================== */
/* FORMS                                 */
/* ===================================== */
.form-label {
    color: var(--text-secondary);
}

.form-input,
.form-select,
textarea.form-input {
    background: var(--bg-input);
    border: 1px solid var(--border-primary);
    color: var(--text-primary);
}

.form-input:focus,
.form-select:focus,
textarea.form-input:focus {
    background: var(--bg-input-focus);
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(var(--brand-primary-rgb), 0.1);
}

.form-input::placeholder {
    color: var(--text-muted);
}

.form-hint {
    color: var(--text-muted);
}

.form-input:disabled {
    background: var(--bg-tertiary);
    color: var(--text-muted);
}

/* ===================================== */
/* BUTTONS                               */
/* ===================================== */
.btn-primary {
    background: var(--brand-secondary);
    color: white;
}

.btn-secondary {
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    color: var(--text-secondary);
}

.btn-secondary:hover {
    background: var(--bg-tertiary);
}

/* ===================================== */
/* TABS                                  */
/* ===================================== */
.secondary-tab,
.upload-tab {
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    color: var(--text-tertiary);
}

.secondary-tab:hover,
.upload-tab:hover {
    border-color: var(--brand-primary);
    color: var(--brand-primary);
}

.secondary-tab.active,
.upload-tab.active {
    background: var(--brand-primary);
    border-color: var(--brand-primary);
    color: white;
}

.secondary-tabs {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-primary);
}

/* ===================================== */
/* DOCUMENT ITEMS                        */
/* ===================================== */
.doc-item {
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
}

.doc-item:hover {
    border-color: var(--brand-primary);
}

.doc-item-name {
    color: var(--text-primary);
}

.doc-item-meta {
    color: var(--text-muted);
}

.doc-item-icon {
    background: var(--bg-secondary);
}

.doc-action-btn {
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    color: var(--text-tertiary);
}

.doc-action-btn:hover {
    border-color: var(--brand-primary);
    color: var(--brand-primary);
}

/* ===================================== */
/* INFO CARDS & EMPTY STATES             */
/* ===================================== */
.info-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
}

.info-card-text {
    color: var(--text-tertiary);
}

/* ===================================== */
/* FILE UPLOAD                           */
/* ===================================== */
.file-upload-area {
    background: var(--bg-secondary);
    border: 2px dashed var(--border-primary);
}

.file-upload-area:hover {
    border-color: var(--brand-primary);
    background: rgba(var(--brand-primary-rgb), 0.05);
}

.file-upload-primary {
    color: var(--text-primary);
}

.file-upload-secondary {
    color: var(--text-muted);
}

/* ===================================== */
/* STORAGE BAR                           */
/* ===================================== */
.storage-card {
    background: var(--page-icon-bg);
    border: 1px solid var(--border-primary);
}

.storage-bar-bg {
    background: var(--storage-bar-bg);
}

.storage-bar-fill {
    background: var(--storage-bar-fill);
}

/* ===================================== */
/* LOGO & PREVIEW                        */
/* ===================================== */
.logo-preview,
.banner-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
}

.logo-preview-box {
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
}

.logo-preview-name {
    color: var(--text-primary);
}

.banner-preview-box,
.banner-item-preview {
    border-color: var(--border-primary);
}

/* ===================================== */
/* COLOR INPUTS                          */
/* ===================================== */
.color-picker-input {
    background: var(--bg-card);
    border-color: var(--border-primary);
}

.color-preview-panel {
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
}

/* ===================================== */
/* DIVIDERS                              */
/* ===================================== */
.divider,
hr,
.docs-list-header {
    border-color: var(--border-primary);
}

/* ===================================== */
/* LOADING STATES                        */
/* ===================================== */
.loading-spinner::before {
    border-color: var(--border-primary);
    border-top-color: var(--brand-primary);
}

.loading-text {
    color: var(--text-tertiary);
}

/* ===================================== */
/* ACCESS DENIED                         */
/* ===================================== */
.access-denied-container {
    background: var(--bg-card);
}

.access-denied-title {
    color: var(--text-primary);
}

.access-denied-message {
    color: var(--text-tertiary);
}

/* ===================================== */
/* SUB PANELS                            */
/* ===================================== */
.sub-panel {
    background: var(--bg-card);
}

.add-doc-section {
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
}

.add-doc-title {
    color: var(--text-primary);
}

/* ===================================== */
/* CATEGORY BADGES                       */
/* ===================================== */
.category-info-badge {
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
}

.category-badge-name {
    color: var(--text-primary);
}

.category-badge-maps {
    color: var(--text-muted);
}

/* ===================================== */
/* SECTION HEADERS                       */
/* ===================================== */
.section-title,
.docs-list-title {
    color: var(--text-primary);
}

.section-description {
    color: var(--text-tertiary);
}

.section-icon {
    background: var(--page-icon-bg);
}

.docs-count {
    background: var(--bg-tertiary);
    color: var(--text-muted);
}

/* ===================================== */
/* BANNER UPLOAD                         */
/* ===================================== */
.banner-upload {
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
}

.banner-item-subtitle {
    color: var(--text-muted);
}

/* ===================================== */
/* QUICK STATS                           */
/* ===================================== */
.quick-stats {
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
}

.stats-title {
    color: var(--text-primary);
}

.stat-value {
    color: var(--text-primary);
}

.stat-label {
    color: var(--text-muted);
}

/* ===================================== */
/* LINK CARD ICONS                       */
/* ===================================== */
.link-card-icon {
    background: var(--page-icon-bg);
}

.link-card-arrow {
    color: var(--text-muted);
}

.link-card:hover .link-card-arrow {
    color: var(--brand-primary);
}

/* ===================================== */
/* TOAST NOTIFICATIONS                   */
/* ===================================== */
.toast {
    background: var(--bg-card);
    color: var(--text-primary);
    box-shadow: var(--shadow-lg);
}

.toast.success {
    background: #059669;
    color: white;
}

.toast.error {
    background: #dc2626;
    color: white;
}
