/* ============================================================
   THEME SYSTEM - GLOBAL STYLES
   ============================================================ */

/* Apply theme to root early for instant transition */
:root {
    color-scheme: light;
}

[data-theme="dark"] {
    color-scheme: dark;
}

/* HTML Element Styling */
html {
    scroll-behavior: smooth;
}

/* Body Transitions */
body {
    transition: background-color 0.3s ease, color 0.3s ease;
}

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

/* Light Mode Scrollbar */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* Dark Mode Scrollbar */
[data-theme="dark"] ::-webkit-scrollbar-track {
    background: #1e293b;
}

[data-theme="dark"] ::-webkit-scrollbar-thumb {
    background: #475569;
    border-radius: 5px;
}

[data-theme="dark"] ::-webkit-scrollbar-thumb:hover {
    background: #64748b;
}

/* Firefox Scrollbar */
* {
    scrollbar-color: #cbd5e1 #f1f5f9;
    scrollbar-width: thin;
}

[data-theme="dark"] * {
    scrollbar-color: #475569 #1e293b;
}

/* ============================================================
   SELECTION STYLING
   ============================================================ */

::selection {
    background-color: #2563eb;
    color: white;
}

[data-theme="dark"] ::selection {
    background-color: #3b82f6;
    color: white;
}

::-moz-selection {
    background-color: #2563eb;
    color: white;
}

[data-theme="dark"] ::-moz-selection {
    background-color: #3b82f6;
    color: white;
}

/* ============================================================
   FOCUS STYLES (Accessibility)
   ============================================================ */

*:focus {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
}

/* Remove outline for mouse users */
*:focus:not(:focus-visible) {
    outline: none;
}

/* ============================================================
   PLACEHOLDER STYLING
   ============================================================ */

::placeholder {
    color: var(--placeholder-color);
    opacity: 1;
}

::-ms-input-placeholder {
    color: var(--placeholder-color);
}

/* ============================================================
   FORM STATES
   ============================================================ */

input:disabled,
textarea:disabled,
select:disabled {
    background-color: var(--bg-secondary);
    cursor: not-allowed;
    opacity: 0.65;
}

/* ============================================================
   LINK STYLING
   ============================================================ */

a {
    color: var(--link-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--link-hover);
}

a:active {
    color: var(--accent-secondary);
}

/* ============================================================
   TEXT UTILITIES FOR THEME SUPPORT
   ============================================================ */

.text-muted {
    color: var(--text-muted) !important;
}

.text-secondary {
    color: var(--text-secondary) !important;
}

.text-dark {
    color: var(--text-primary) !important;
}

.text-light {
    color: var(--text-secondary) !important;
}

.text-white {
    color: white !important;
}

/* ============================================================
   BACKGROUND UTILITIES FOR THEME SUPPORT
   ============================================================ */

.bg-light {
    background-color: var(--bg-secondary) !important;
}

.bg-dark {
    background-color: var(--bg-primary) !important;
}

.bg-white {
    background-color: white !important;
}

.bg-secondary {
    background-color: var(--bg-secondary) !important;
}

/* ============================================================
   BORDER UTILITIES FOR THEME SUPPORT
   ============================================================ */

.border {
    border-color: var(--border-color) !important;
}

.border-top {
    border-top-color: var(--border-color) !important;
}

.border-bottom {
    border-bottom-color: var(--border-color) !important;
}

.border-start {
    border-left-color: var(--border-color) !important;
}

.border-end {
    border-right-color: var(--border-color) !important;
}

/* ============================================================
   CARD AND SHADOW UTILITIES
   ============================================================ */

.card {
    background-color: var(--bg-card);
    border-color: var(--border-color);
    transition: all 0.3s ease;
}

.shadow {
    box-shadow: var(--shadow);
}

.shadow-sm {
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
}

[data-theme="dark"] .shadow-sm {
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

/* ============================================================
   TRANSITION UTILITIES
   ============================================================ */

.transition-fast {
    transition: all 0.15s ease;
}

.transition-normal {
    transition: all 0.3s ease;
}

.transition-slow {
    transition: all 0.5s ease;
}

/* ============================================================
   THEME TOGGLE BUTTON STYLING
   ============================================================ */

.theme-toggle {
    width: 40px;
    height: 40px;
    border: 1px solid var(--border-color);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1rem;
}

.theme-toggle:hover {
    background-color: var(--accent-primary);
    color: white;
    transform: scale(1.05);
    border-color: var(--accent-primary);
}

.theme-toggle:active {
    transform: scale(0.95);
}

/* ============================================================
   CODE BLOCK STYLING
   ============================================================ */

code {
    background-color: var(--bg-secondary);
    color: #ef4444;
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
}

pre {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    overflow-x: auto;
}

pre code {
    background: none;
    color: var(--text-primary);
    padding: 0;
}

/* ============================================================
   LOADING ANIMATION WITH THEME SUPPORT
   ============================================================ */

.spinner-border {
    border-color: rgba(59, 130, 246, 0.25);
    border-right-color: var(--accent-primary);
}

.spinner-grow {
    background-color: var(--accent-primary);
}

/* ============================================================
   ANIMATION KEYFRAMES
   ============================================================ */

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

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

/* ============================================================
   RESPONSIVE THEME ADJUSTMENTS
   ============================================================ */

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

@media (max-width: 576px) {
    .theme-toggle {
        width: 36px;
        height: 36px;
        font-size: 0.9rem;
    }
}

/* ============================================================
   HIGH CONTRAST MODE SUPPORT
   ============================================================ */

@media (prefers-contrast: more) {
    :root {
        --text-primary: #000000;
        --text-secondary: #333333;
        --border-color: rgba(0, 0, 0, 0.2);
        --accent-primary: #0000ff;
    }

    [data-theme="dark"] {
        --text-primary: #ffffff;
        --text-secondary: #f0f0f0;
        --border-color: rgba(255, 255, 255, 0.3);
        --accent-primary: #64b5f6;
    }
}