/**
 * CryptoGate — Shared Site Base Stylesheet
 * Used by: info.cryptogate.live, docs.cryptogate.live, learn.cryptogate.live
 * Site-specific overrides go in each page's own CSS file.
 */

/* ============================================
   CSS VARIABLES — LIGHT MODE
   ============================================ */
:root {
    --color-bg-primary:   #ffffff;
    --color-bg-secondary: #f8fafc;
    --color-bg-tertiary:  #f1f5f9;
    --color-bg-hover:     #e2e8f0;
    --color-bg-code:      #0f1117;

    --color-text-primary:   #0f172a;
    --color-text-secondary: #475569;
    --color-text-tertiary:  #94a3b8;
    --color-text-muted:     #94a3b8;

    --color-primary:       #3b82f6;
    --color-primary-light: #60a5fa;
    --color-primary-dark:  #2563eb;
    --color-primary-bg:    #eff6ff;

    --color-accent:       #8b5cf6;
    --color-accent-light: #a78bfa;
    --color-accent-dark:  #7c3aed;
    --color-accent-bg:    #f5f3ff;

    --color-success:      #10b981;
    --color-success-bg:   #ecfdf5;
    --color-warning:      #f59e0b;
    --color-warning-bg:   #fffbeb;
    --color-error:        #ef4444;
    --color-error-bg:     #fef2f2;
    --color-info:         #06b6d4;
    --color-info-bg:      #ecfeff;

    --color-border:       #e2e8f0;
    --color-border-light: #f1f5f9;

    /* Difficulty levels (learn site) */
    --color-beginner:         #10b981;
    --color-beginner-bg:      #ecfdf5;
    --color-intermediate:     #f59e0b;
    --color-intermediate-bg:  #fffbeb;
    --color-advanced:         #ef4444;
    --color-advanced-bg:      #fef2f2;

    /* Aliases used by information section CSS files */
    --bg-white:      var(--color-bg-primary);
    --bg-light:      var(--color-bg-secondary);
    --bg-gray:       var(--color-bg-tertiary);
    --text-primary:   var(--color-text-primary);
    --text-secondary: var(--color-text-secondary);
    --text-tertiary:  var(--color-text-tertiary);
    --text-inverse:   #ffffff;
    --primary-color:  var(--color-primary);
    --accent-color:   var(--color-accent);
    --success-color:  var(--color-success);
    --border-color:   var(--color-border);

    /* Spacing */
    --spacing-xs:  0.25rem;
    --spacing-sm:  0.5rem;
    --spacing-md:  0.875rem;
    --spacing-lg:  1.25rem;
    --spacing-xl:  2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    /* Typography */
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'SF Mono', 'Fira Code', 'Cascadia Code', 'Courier New', monospace;

    --font-size-xs:   0.75rem;
    --font-size-sm:   0.8125rem;
    --font-size-base: 0.9375rem;
    --font-size-md:   1rem;
    --font-size-lg:   1.125rem;
    --font-size-xl:   1.375rem;
    --font-size-2xl:  1.75rem;
    --font-size-3xl:  2.125rem;
    --font-size-4xl:  2.5rem;
    --font-size-5xl:  3rem;

    --font-weight-normal:   400;
    --font-weight-medium:   500;
    --font-weight-semibold: 600;
    --font-weight-bold:     700;

    --line-height-tight:   1.25;
    --line-height-normal:  1.5;
    --line-height-relaxed: 1.75;

    /* Borders */
    --radius-sm:   4px;
    --radius-md:   8px;
    --radius-lg:   12px;
    --radius-xl:   16px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm:  0 1px 3px rgba(0,0,0,.06);
    --shadow-md:  0 4px 12px rgba(0,0,0,.08);
    --shadow-lg:  0 10px 30px rgba(0,0,0,.1);
    --shadow-xl:  0 20px 40px rgba(0,0,0,.14);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;

    /* Layout */
    --sidebar-width: 260px;
}

/* ============================================
   DARK MODE
   ============================================ */
html.dark-mode {
    --color-bg-primary:   #0f172a;
    --color-bg-secondary: #1e293b;
    --color-bg-tertiary:  #334155;
    --color-bg-hover:     #475569;
    --color-bg-code:      #0b0f1a;

    --color-text-primary:   #f1f5f9;
    --color-text-secondary: #94a3b8;
    --color-text-tertiary:  #64748b;
    --color-text-muted:     #64748b;

    --color-primary-bg:  #1e3a5f;
    --color-accent-bg:   #2d2150;

    --color-success-bg:  #052e16;
    --color-warning-bg:  #1c1400;
    --color-error-bg:    #1c0505;
    --color-info-bg:     #052030;

    --color-beginner-bg:     #052e16;
    --color-intermediate-bg: #1c1400;
    --color-advanced-bg:     #1c0505;

    --color-border:       #334155;
    --color-border-light: #475569;

    --bg-white:    #0f172a;
    --bg-light:    #1e293b;
    --bg-gray:     #334155;
    --text-primary:   #f1f5f9;
    --text-secondary: #94a3b8;
    --text-tertiary:  #64748b;
    --border-color:   #334155;

    --shadow-sm:  0 1px 2px rgba(0,0,0,.3);
    --shadow-md:  0 4px 6px rgba(0,0,0,.4);
    --shadow-lg:  0 10px 15px rgba(0,0,0,.5);
    --shadow-xl:  0 20px 25px rgba(0,0,0,.5);
}

/* ============================================
   THEME TOGGLE
   ============================================ */
.theme-toggle-btn {
    position: fixed;
    top: 0.875rem;
    right: 1rem;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
    z-index: 200;
    box-shadow: var(--shadow-sm);
}
.theme-toggle-btn:hover {
    color: var(--color-text-primary);
    border-color: var(--color-primary);
    background: var(--color-bg-tertiary);
}

/* ============================================
   RESET & BASE
   ============================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    line-height: 1.7;
    color: var(--color-text-primary);
    background: var(--color-bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   LAYOUT
   ============================================ */
.container {
    display: grid;
    grid-template-columns: var(--sidebar-width) 1fr;
    min-height: 100vh;
}

/* ============================================
   SIDEBAR
   ============================================ */
.sidebar {
    background: var(--color-bg-secondary);
    border-right: 1px solid var(--color-border);
    height: 100vh;
    position: sticky;
    top: 0;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    overflow-x: hidden;
    scrollbar-width: thin;
    scrollbar-color: var(--color-border) transparent;
    z-index: 100;
}
.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-track { background: transparent; }
.sidebar::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 2px; }

.sidebar-header {
    padding: 1.125rem var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
    background: var(--color-bg-primary);
}

.logo-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    color: var(--color-text-primary);
    font-weight: 700;
    font-size: var(--font-size-md);
    transition: color var(--transition-fast);
}
.logo-container:hover { color: var(--color-primary); text-decoration: none; }

.logo { width: 28px; height: 28px; border-radius: var(--radius-sm); }
.logo-text { font-weight: 700; letter-spacing: -0.01em; }

.toggle-sidebar {
    display: none;
    background: none;
    border: none;
    color: var(--color-text-secondary);
    cursor: pointer;
    padding: var(--spacing-sm);
    font-size: var(--font-size-md);
    border-radius: var(--radius-sm);
}
.toggle-sidebar:hover { color: var(--color-text-primary); background: var(--color-bg-hover); }

/* Sidebar Search */
.sidebar-search {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}
.search-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}
.search-input-wrapper i {
    position: absolute;
    left: var(--spacing-md);
    color: var(--color-text-tertiary);
    font-size: var(--font-size-sm);
}
.search-input-wrapper input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md) var(--spacing-sm) 2.25rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    font-size: var(--font-size-sm);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.search-input-wrapper input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-bg);
}
.search-input-wrapper input::placeholder { color: var(--color-text-tertiary); }

/* Sidebar Content */
.sidebar-content { flex: 1; padding: var(--spacing-md) 0; overflow-y: auto; }

.sidebar-section { margin-bottom: var(--spacing-xs); }

.section-title {
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-muted);
    padding: var(--spacing-sm) var(--spacing-lg);
    margin-top: var(--spacing-sm);
    margin-bottom: 2px;
    cursor: pointer;
    user-select: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: color var(--transition-fast);
}
.section-title:hover { color: var(--color-primary); }
.section-title .toggle-icon { font-size: var(--font-size-xs); transition: transform var(--transition-fast); }
.section-title.active .toggle-icon { transform: rotate(180deg); }

.nav-list {
    list-style: none;
    max-height: 600px;
    overflow: hidden;
    transition: max-height 200ms ease, opacity 200ms ease;
    opacity: 1;
}
.nav-list-no-collapse { max-height: none !important; opacity: 1 !important; }
.sidebar-section.collapsed .nav-list { max-height: 0; opacity: 0; }
.nav-item { margin: 0; }

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.4375rem var(--spacing-lg);
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: var(--font-size-sm);
    border-left: 2px solid transparent;
    transition: all var(--transition-fast);
}
.nav-link:hover {
    background: var(--color-bg-tertiary);
    color: var(--color-primary);
    border-left-color: var(--color-primary);
    text-decoration: none;
}
.nav-item.active .nav-link {
    background: var(--color-primary-bg);
    color: var(--color-primary);
    border-left-color: var(--color-primary);
    font-weight: 600;
}
.nav-link i { width: 15px; text-align: center; flex-shrink: 0; font-size: 0.75rem; opacity: 0.8; }

/* Sidebar Footer */
.sidebar-footer {
    padding: var(--spacing-md);
    border-top: 1px solid var(--color-border);
    flex-shrink: 0;
    background: var(--color-bg-secondary);
}

.sidebar-cross-links { margin-bottom: var(--spacing-sm); }
.sidebar-cross-links a {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.3125rem var(--spacing-sm);
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: var(--font-size-xs);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}
.sidebar-cross-links a:hover { color: var(--color-primary); background: var(--color-bg-tertiary); text-decoration: none; }
.sidebar-cross-links a i { width: 14px; text-align: center; }

.back-to-site {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-text-secondary);
    text-decoration: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
}
.back-to-site:hover {
    background: var(--color-primary-bg);
    border-color: var(--color-primary);
    color: var(--color-primary);
    text-decoration: none;
}

/* ============================================
   MAIN CONTENT
   ============================================ */
.main-content {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background: var(--color-bg-primary);
}

.content-header {
    padding: 0.875rem var(--spacing-xl);
    border-bottom: 1px solid var(--color-border);
    background: var(--color-bg-primary);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
    position: sticky;
    top: 0;
    z-index: 10;
    backdrop-filter: blur(8px);
}

.page-title {
    font-size: var(--font-size-md);
    font-weight: 600;
    margin: 0;
    color: var(--color-text-primary);
}

.header-actions { display: flex; gap: var(--spacing-sm); }

.content-wrapper {
    flex: 1;
    padding: var(--spacing-2xl) var(--spacing-xl);
    max-width: 1100px;
    width: 100%;
    margin: 0 auto;
}

.content-section { display: none; }
.content-section.active {
    display: block;
    animation: fadeIn 0.25s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* Loading Indicator */
.loading-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-3xl);
    text-align: center;
}
.loading-indicator .spinner {
    border: 4px solid var(--color-border);
    border-left-color: var(--color-primary);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin-bottom: var(--spacing-md);
}
.loading-indicator p { color: var(--color-text-secondary); margin: 0; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    color: var(--color-text-primary);
    font-weight: 700;
    line-height: 1.3;
    letter-spacing: -0.01em;
}
h1 { font-size: var(--font-size-3xl); margin-bottom: var(--spacing-md); }
h2 { font-size: var(--font-size-2xl); margin-bottom: var(--spacing-md); }
h3 { font-size: var(--font-size-xl);  margin-bottom: var(--spacing-md); }
h4 { font-size: var(--font-size-lg);  margin-bottom: var(--spacing-sm); }
h5 { font-size: var(--font-size-md);  margin-bottom: var(--spacing-sm); }
h6 { font-size: var(--font-size-base); margin-bottom: var(--spacing-sm); }

p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-secondary);
    line-height: 1.75;
}

a { color: var(--color-primary); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--color-primary-dark); text-decoration: underline; }

code {
    font-family: var(--font-mono);
    font-size: 0.84em;
    background: var(--color-bg-tertiary);
    color: var(--color-accent);
    padding: 0.15em 0.4em;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    white-space: nowrap;
}

pre {
    background: var(--color-bg-code);
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin: var(--spacing-md) 0 var(--spacing-lg);
    border: 1px solid var(--color-border);
}
pre code {
    background: none;
    padding: var(--spacing-lg);
    display: block;
    border: none;
    color: #e2e8f0;
    font-size: var(--font-size-sm);
    line-height: 1.7;
    white-space: pre;
}

ul, ol { margin-bottom: var(--spacing-md); padding-left: var(--spacing-xl); color: var(--color-text-secondary); }
li { margin-bottom: var(--spacing-xs); line-height: 1.65; font-size: var(--font-size-base); }

blockquote {
    border-left: 4px solid var(--color-primary);
    padding-left: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
    color: var(--color-text-secondary);
    font-style: italic;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 0.5rem var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-decoration: none;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    line-height: 1;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.btn-primary:hover {
    background: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
    color: #fff;
}
.btn-secondary { background: var(--color-bg-tertiary); color: var(--color-text-primary); border-color: var(--color-border); }
.btn-secondary:hover { background: var(--color-bg-hover); }
.btn-outline { background: transparent; color: var(--color-primary); border-color: var(--color-border); }
.btn-outline:hover { background: var(--color-primary-bg); border-color: var(--color-primary); color: var(--color-primary); }
.btn-sm { padding: var(--spacing-xs) var(--spacing-md); font-size: var(--font-size-xs); }
.btn-lg { padding: var(--spacing-md) var(--spacing-xl); font-size: var(--font-size-base); }

/* ============================================
   SECTION HEADERS
   ============================================ */
.section-header {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 2px solid var(--color-border);
}
.section-header h2,
.section-header .section-title {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
    text-transform: none;
    padding: 0;
    cursor: default;
    user-select: text;
}
.section-description {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    margin: 0;
    line-height: 1.6;
}

/* ============================================
   BADGES
   ============================================ */
.badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.125rem 0.5rem;
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.025em;
    line-height: 1;
}
.badge-beginner     { background: var(--color-beginner-bg);     color: var(--color-beginner); }
.badge-intermediate { background: var(--color-intermediate-bg); color: var(--color-intermediate); }
.badge-advanced     { background: var(--color-advanced-bg);     color: var(--color-advanced); }
.badge-tag {
    background: var(--color-bg-tertiary);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}
.badge-tag:hover { background: var(--color-primary-bg); color: var(--color-primary); }

/* ============================================
   ALERT BOXES
   ============================================ */
.alert,
.info-box,
.warning-box,
.error-box,
.alert-box {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    border-left: 4px solid;
    margin: var(--spacing-lg) 0;
    font-size: var(--font-size-sm);
    line-height: 1.6;
}
.alert > i, .info-box > i, .warning-box > i, .error-box > i, .alert-box > i {
    margin-top: 2px;
    flex-shrink: 0;
    font-size: var(--font-size-md);
}

.alert-info,    .info-box    { background: var(--color-info-bg);    border-color: var(--color-info);    color: #0e7490; }
.alert-warning, .warning-box { background: var(--color-warning-bg); border-color: var(--color-warning); color: #92400e; }
.alert-error,   .error-box   { background: var(--color-error-bg);   border-color: var(--color-error);   color: #991b1b; }
.alert-success               { background: var(--color-success-bg); border-color: var(--color-success); color: #065f46; }

.alert-info > i,    .info-box > i    { color: var(--color-info); }
.alert-warning > i, .warning-box > i { color: var(--color-warning); }
.alert-error > i,   .error-box > i   { color: var(--color-error); }
.alert-success > i                   { color: var(--color-success); }

html.dark-mode .alert-info,    html.dark-mode .info-box    { background: var(--color-info-bg);    color: #67e8f9; }
html.dark-mode .alert-warning, html.dark-mode .warning-box { background: var(--color-warning-bg); color: #fcd34d; }
html.dark-mode .alert-error,   html.dark-mode .error-box   { background: var(--color-error-bg);   color: #fca5a5; }
html.dark-mode .alert-success                              { background: var(--color-success-bg); color: #6ee7b7; }

/* Alert-box with title+body content wrapper */
.alert-box.alert-info    { background: var(--color-info-bg);    border-color: var(--color-info); }
.alert-box.alert-success { background: var(--color-success-bg); border-color: var(--color-success); }
.alert-box.alert-warning { background: var(--color-warning-bg); border-color: var(--color-warning); }
.alert-box.alert-error   { background: var(--color-error-bg);   border-color: var(--color-error); }
.alert-box.alert-info i    { color: var(--color-info); }
.alert-box.alert-success i { color: var(--color-success); }
.alert-box.alert-warning i { color: var(--color-warning); }
.alert-box.alert-error i   { color: var(--color-error); }

.alert-box-content h5 { font-size: var(--font-size-md); margin-bottom: var(--spacing-xs); }
.alert-box-content p { margin: 0; font-size: var(--font-size-sm); }
.alert-box-content p:not(:last-child) { margin-bottom: var(--spacing-sm); }

/* ============================================
   FEATURE GRID
   ============================================ */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-xl) 0;
}
.feature-card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: all 200ms ease;
}
.feature-card:hover { border-color: var(--color-primary); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.feature-icon {
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: white;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-lg);
}
.feature-card h3 { font-size: var(--font-size-md); font-weight: 600; margin-bottom: var(--spacing-sm); margin-top: 0; border: none; padding: 0; }
.feature-card p  { color: var(--color-text-secondary); font-size: var(--font-size-sm); margin: 0; }

/* ============================================
   TABLES
   ============================================ */
.table {
    width: 100%;
    border-collapse: collapse;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin: var(--spacing-md) 0 var(--spacing-lg);
    font-size: var(--font-size-sm);
}
.table thead tr { background: var(--color-bg-tertiary); border-bottom: 2px solid var(--color-border); }
.table thead th {
    padding: 0.625rem var(--spacing-md);
    text-align: left;
    font-size: var(--font-size-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    white-space: nowrap;
}
.table tbody tr { border-bottom: 1px solid var(--color-border); transition: background var(--transition-fast); }
.table tbody tr:last-child { border-bottom: none; }
.table tbody tr:hover { background: var(--color-bg-secondary); }
html.dark-mode .table tbody tr:hover { background: rgba(255,255,255,0.03); }
.table tbody td { padding: 0.6875rem var(--spacing-md); vertical-align: top; color: var(--color-text-secondary); line-height: 1.6; }
.table tbody td:first-child { color: var(--color-text-primary); }

/* ============================================
   FOOTER
   ============================================ */
.main-footer {
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-xl);
    background: var(--color-bg-secondary);
    margin-top: auto;
}
.footer-content { max-width: 1000px; display: flex; align-items: center; gap: var(--spacing-lg); }
.footer-logo img { width: 28px; height: 28px; border-radius: var(--radius-sm); }
.footer-info { flex: 1; }
.footer-info p { margin: 0; color: var(--color-text-muted); font-size: var(--font-size-sm); }
.footer-links { display: flex; gap: var(--spacing-md); margin-top: var(--spacing-xs); }
.footer-links a { color: var(--color-text-muted); font-size: var(--font-size-xs); }
.footer-links a:hover { color: var(--color-primary); text-decoration: none; }

/* ============================================
   MOBILE TOP BAR & OVERLAY
   ============================================ */
.mobile-topbar {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 52px;
    background: var(--color-bg-secondary);
    border-bottom: 1px solid var(--color-border);
    align-items: center;
    gap: 12px;
    padding: 0 16px;
    z-index: 1001;
}
.mobile-menu-btn {
    background: none;
    border: none;
    color: var(--color-text-secondary);
    font-size: 1.1rem;
    cursor: pointer;
    padding: 6px 8px;
    border-radius: var(--radius-sm);
    line-height: 1;
    flex-shrink: 0;
}
.mobile-menu-btn:hover { color: var(--color-text-primary); background: var(--color-bg-hover); }

.mobile-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: var(--font-size-md);
    color: var(--color-text-primary);
    text-decoration: none;
}
.mobile-logo .logo { width: 24px; height: 24px; }

.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    z-index: 999;
}
.sidebar-overlay.visible,
.sidebar-overlay.active { display: block; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 900px) {
    .mobile-topbar { display: flex; }
    body { padding-top: 52px; }
    .container { grid-template-columns: 1fr; }
    .sidebar {
        position: fixed;
        top: 0;
        left: calc(-1 * var(--sidebar-width));
        height: 100%;
        width: var(--sidebar-width);
        transition: left 0.25s ease;
        z-index: 1000;
        box-shadow: var(--shadow-lg);
    }
    .sidebar.open { left: 0; }
    .toggle-sidebar { display: flex; }
    .content-wrapper { padding: var(--spacing-xl) var(--spacing-lg); max-width: 100%; }
    .content-header  { padding: 0.875rem var(--spacing-lg); }
}

@media (max-width: 600px) {
    .content-wrapper { padding: var(--spacing-lg) var(--spacing-md); }
    .feature-grid { grid-template-columns: 1fr; }
    .footer-content { flex-direction: column; align-items: flex-start; }
    h1 { font-size: var(--font-size-2xl); }
    h2 { font-size: var(--font-size-xl); }
    h3 { font-size: var(--font-size-lg); }
}