/* ============================================
   SHARED FEATURES
   CRT Mode, Command Palette, Page Transitions,
   Scroll Reveals, 3D Card Tilt
   ============================================ */

/* PAGE TRANSITIONS */
body:not(.no-transition) {
    animation: pageEnter 0.4s ease-out;
}

body.page-leaving {
    opacity: 0 !important;
    transform: translateY(-8px);
    transition: opacity 0.3s ease, transform 0.3s ease;
    pointer-events: none;
}

@keyframes pageEnter {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* CRT MODE */
body.crt-mode {
    animation: crtFlicker 4s infinite;
}

body.crt-mode::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(
        0deg,
        rgba(0, 0, 0, 0.03) 0px,
        rgba(0, 0, 0, 0.03) 1px,
        transparent 1px,
        transparent 3px
    );
    pointer-events: none;
    z-index: 99997;
}

body.crt-mode::after {
    content: '';
    position: fixed;
    top: -2%;
    left: -2%;
    width: 104%;
    height: 104%;
    background: radial-gradient(
        ellipse at center,
        transparent 60%,
        rgba(0, 0, 0, 0.2) 85%,
        rgba(0, 0, 0, 0.5) 100%
    );
    pointer-events: none;
    z-index: 99998;
    border-radius: 12px;
}

@keyframes crtFlicker {
    0% { filter: brightness(1); }
    3% { filter: brightness(0.97); }
    6% { filter: brightness(1); }
    42% { filter: brightness(1); }
    44% { filter: brightness(0.98); }
    46% { filter: brightness(1); }
    100% { filter: brightness(1); }
}

body.crt-mode .page-title,
body.crt-mode .terminal-body,
body.crt-mode h1,
body.crt-mode h2,
body.crt-mode h3 {
    text-shadow: 0 0 3px rgba(230, 126, 34, 0.3), 0 0 8px rgba(230, 126, 34, 0.1);
}

body.crt-mode .nav-tabs a,
body.crt-mode p,
body.crt-mode span {
    text-shadow: 0 0 2px rgba(0, 255, 0, 0.05);
}

/* CRT scanline sweep */
body.crt-mode .crt-scanline {
    position: fixed;
    top: -100%;
    left: 0;
    width: 100%;
    height: 8px;
    background: linear-gradient(
        to bottom,
        transparent,
        rgba(255, 255, 255, 0.03),
        transparent
    );
    z-index: 99999;
    pointer-events: none;
    animation: crtScanline 8s linear infinite;
}

@keyframes crtScanline {
    0% { top: -2%; }
    100% { top: 102%; }
}

/* CRT indicator badge */
.crt-badge {
    position: fixed;
    bottom: 2rem;
    left: 2rem;
    font-family: 'VT323', monospace;
    font-size: 0.9rem;
    color: #0f0;
    background: rgba(0, 0, 0, 0.7);
    padding: 0.3rem 0.6rem;
    border: 1px solid #0f0;
    z-index: 100000;
    cursor: pointer;
    display: none;
    text-shadow: 0 0 6px rgba(0, 255, 0, 0.5);
}

body.crt-mode .crt-badge {
    display: block;
}

/* COMMAND PALETTE */
.cmd-palette-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 100001;
    display: none;
    align-items: flex-start;
    justify-content: center;
    padding-top: 18vh;
    backdrop-filter: blur(4px);
    animation: cmdFadeIn 0.15s ease;
}

.cmd-palette-overlay.active {
    display: flex;
}

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

.cmd-palette {
    background: #1e1e1e;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    width: 560px;
    max-width: 90vw;
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.6);
    overflow: hidden;
    animation: cmdSlideIn 0.2s ease;
}

@keyframes cmdSlideIn {
    from { opacity: 0; transform: scale(0.96) translateY(-10px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

.cmd-palette-input-wrap {
    position: relative;
    display: flex;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.cmd-palette-input-wrap::before {
    content: '';
    position: absolute;
    left: 1rem;
    width: 18px;
    height: 18px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23888'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M21 21l-6-6m2-5a7 7 0 11-14 0 7 7 0 0114 0z'/%3E%3C/svg%3E") no-repeat center;
    background-size: contain;
    pointer-events: none;
}

.cmd-palette-input {
    width: 100%;
    padding: 1rem 1.25rem 1rem 2.75rem;
    background: transparent;
    border: none;
    color: #e0e0e0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 1rem;
    outline: none;
}

.cmd-palette-input::placeholder {
    color: #666;
}

.cmd-palette-results {
    max-height: 340px;
    overflow-y: auto;
    padding: 0.5rem 0;
}

.cmd-palette-results::-webkit-scrollbar {
    width: 6px;
}

.cmd-palette-results::-webkit-scrollbar-thumb {
    background: #444;
    border-radius: 3px;
}

.cmd-palette-section {
    padding: 0.5rem 1rem 0.25rem;
    font-family: 'VT323', monospace;
    font-size: 0.75rem;
    color: #666;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.cmd-palette-item {
    padding: 0.6rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    transition: background 0.08s;
    color: #bbb;
    font-size: 0.9rem;
    font-family: 'Inter', sans-serif;
}

.cmd-palette-item:hover,
.cmd-palette-item.selected {
    background: rgba(230, 126, 34, 0.12);
    color: #fff;
}

.cmd-palette-item .cmd-icon {
    width: 22px;
    text-align: center;
    font-size: 1rem;
    opacity: 0.7;
}

.cmd-palette-item .cmd-label {
    flex: 1;
}


.cmd-palette-item .cmd-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.cmd-palette-item .cmd-description {
    font-size: 0.72rem;
    color: #999;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.cmd-palette-item .cmd-shortcut {
    font-size: 0.7rem;
    opacity: 0.35;
    font-family: 'Monaco', 'Menlo', monospace;
    background: rgba(255, 255, 255, 0.06);
    padding: 0.15rem 0.4rem;
    border-radius: 3px;
}

.cmd-palette-empty {
    padding: 2rem 1.25rem;
    text-align: center;
    color: #666;
    font-size: 0.9rem;
}

.cmd-palette-footer {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 0.5rem 1rem;
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.cmd-palette-footer span {
    font-size: 0.7rem;
    color: #555;
    font-family: 'Monaco', monospace;
}

.cmd-palette-footer kbd {
    font-size: 0.65rem;
    background: rgba(255, 255, 255, 0.08);
    padding: 0.1rem 0.3rem;
    border-radius: 2px;
    color: #888;
    font-family: 'Monaco', monospace;
}

/* SCROLL REVEALS */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger children inside grid containers */
.scroll-stagger.revealed > * {
    opacity: 1 !important;
    transform: translateY(0) !important;
}

.scroll-stagger > * {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.scroll-stagger.revealed > *:nth-child(1) { transition-delay: 0s; }
.scroll-stagger.revealed > *:nth-child(2) { transition-delay: 0.08s; }
.scroll-stagger.revealed > *:nth-child(3) { transition-delay: 0.16s; }
.scroll-stagger.revealed > *:nth-child(4) { transition-delay: 0.24s; }
.scroll-stagger.revealed > *:nth-child(5) { transition-delay: 0.32s; }
.scroll-stagger.revealed > *:nth-child(6) { transition-delay: 0.40s; }
.scroll-stagger.revealed > *:nth-child(7) { transition-delay: 0.48s; }
.scroll-stagger.revealed > *:nth-child(8) { transition-delay: 0.56s; }
.scroll-stagger.revealed > *:nth-child(9) { transition-delay: 0.64s; }

/* 3D CARD TILT */
.tilt-card {
    transform-style: preserve-3d;
    will-change: transform;
    transition: transform 0.15s ease-out, box-shadow 0.15s ease-out;
}

.tilt-card .tilt-shine {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    background: radial-gradient(
        circle at var(--shine-x, 50%) var(--shine-y, 50%),
        rgba(255, 255, 255, 0.1) 0%,
        transparent 60%
    );
    opacity: 0;
    transition: opacity 0.2s ease;
    z-index: 2;
}

.tilt-card:hover .tilt-shine {
    opacity: 1;
}

/* DESKTOP OS MODE */
.desktop-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 99990;
    display: none;
    background: var(--bg-primary, #1a1a2e);
    flex-direction: column;
}

.desktop-overlay.active {
    display: flex;
}

.desktop-area {
    flex: 1;
    position: relative;
    padding: 2rem;
    overflow: hidden;
}

.desktop-icons {
    display: grid;
    grid-template-columns: repeat(auto-fill, 90px);
    gap: 1.5rem;
    align-content: start;
}

.desktop-icon {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.4rem;
    cursor: pointer;
    padding: 0.75rem 0.5rem;
    border-radius: 6px;
    transition: background 0.15s;
    user-select: none;
}

.desktop-icon:hover {
    background: rgba(255, 255, 255, 0.1);
}

.desktop-icon:active {
    background: rgba(255, 255, 255, 0.15);
}

.desktop-icon-img {
    font-size: 2.2rem;
    line-height: 1;
}

.desktop-icon-label {
    font-family: 'Inter', sans-serif;
    font-size: 0.7rem;
    color: #e0e0e0;
    text-align: center;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.8);
    word-break: break-word;
    max-width: 80px;
}

/* Desktop Windows */
.desktop-window {
    position: absolute;
    background: rgba(30, 30, 30, 0.98);
    border-radius: 10px;
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.1);
    display: flex;
    flex-direction: column;
    min-width: 400px;
    min-height: 300px;
    overflow: hidden;
    z-index: 1;
}

.desktop-window.focused {
    z-index: 10;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.7), 0 0 0 1px rgba(255, 255, 255, 0.15);
}

.desktop-window-header {
    background: linear-gradient(180deg, #3a3a3a 0%, #2d2d2d 100%);
    padding: 0.6rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: move;
    user-select: none;
    border-bottom: 1px solid rgba(0, 0, 0, 0.3);
    flex-shrink: 0;
}

.desktop-window-controls {
    display: flex;
    gap: 0.5rem;
}

.desktop-window-btn {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.3), 0 1px 2px rgba(0, 0, 0, 0.3);
}

.desktop-window-btn.close-btn {
    background: linear-gradient(135deg, #cc4c44 0%, #b33a33 100%);
}

.desktop-window-btn.min-btn {
    background: linear-gradient(135deg, #ffbd2e 0%, #ffaa1f 100%);
}

.desktop-window-btn.max-btn {
    background: linear-gradient(135deg, #28ca42 0%, #1fb933 100%);
}

.desktop-window-title {
    font-family: -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 0.8rem;
    color: #b8b8b8;
    margin-left: 0.5rem;
    font-weight: 500;
}

.desktop-window-body {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
    color: #e0e0e0;
    font-family: 'Inter', sans-serif;
    font-size: 0.9rem;
    line-height: 1.6;
    background: #1e1e1e;
}

.desktop-window-body::-webkit-scrollbar {
    width: 6px;
}

.desktop-window-body::-webkit-scrollbar-thumb {
    background: #555;
    border-radius: 3px;
}

/* Taskbar */
.desktop-taskbar {
    height: 48px;
    background: rgba(30, 30, 30, 0.95);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    padding: 0 1rem;
    gap: 0.5rem;
    backdrop-filter: blur(10px);
    flex-shrink: 0;
}

.taskbar-start {
    font-family: 'VT323', monospace;
    font-size: 1.1rem;
    color: #e67e22;
    padding: 0.3rem 0.8rem;
    cursor: pointer;
    border-radius: 4px;
    transition: background 0.15s;
    user-select: none;
}

.taskbar-start:hover {
    background: rgba(230, 126, 34, 0.15);
}

.taskbar-divider {
    width: 1px;
    height: 60%;
    background: rgba(255, 255, 255, 0.1);
    margin: 0 0.25rem;
}

.taskbar-windows {
    flex: 1;
    display: flex;
    gap: 0.25rem;
    overflow-x: auto;
}

.taskbar-window-btn {
    font-family: 'Inter', sans-serif;
    font-size: 0.75rem;
    color: #aaa;
    padding: 0.3rem 0.75rem;
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.15s;
    white-space: nowrap;
    user-select: none;
}

.taskbar-window-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
}

.taskbar-window-btn.active {
    background: rgba(230, 126, 34, 0.15);
    color: #e67e22;
}

.taskbar-clock {
    font-family: 'VT323', monospace;
    font-size: 0.95rem;
    color: #888;
    padding: 0 0.5rem;
    user-select: none;
}

/* Start menu */
.start-menu {
    position: absolute;
    bottom: 48px;
    left: 0;
    width: 280px;
    background: rgba(30, 30, 30, 0.98);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 8px 8px 0 0;
    box-shadow: 0 -10px 40px rgba(0, 0, 0, 0.5);
    display: none;
    flex-direction: column;
    overflow: hidden;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.start-menu.active {
    display: flex;
}

.start-menu-header {
    padding: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    font-family: 'VT323', monospace;
    font-size: 1.2rem;
    color: #e67e22;
}

.start-menu-items {
    padding: 0.5rem 0;
}

.start-menu-item {
    padding: 0.6rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    color: #bbb;
    font-size: 0.85rem;
    transition: background 0.1s;
}

.start-menu-item:hover {
    background: rgba(230, 126, 34, 0.12);
    color: #fff;
}

.start-menu-item .menu-icon {
    width: 20px;
    text-align: center;
}

.start-menu-divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.06);
    margin: 0.25rem 0;
}

/* KONAMI REWARD */
@keyframes konami-rainbow {
    0% { filter: hue-rotate(0deg); }
    100% { filter: hue-rotate(360deg); }
}

.konami-active {
    animation: konami-rainbow 2s linear infinite;
}

@keyframes confetti-fall {
    0% { transform: translateY(-100vh) rotate(0deg); opacity: 1; }
    100% { transform: translateY(100vh) rotate(720deg); opacity: 0; }
}

.confetti-piece {
    position: fixed;
    width: 10px;
    height: 10px;
    z-index: 999999;
    pointer-events: none;
    animation: confetti-fall 3s ease-in forwards;
}

/* SUDO animation */
@keyframes sudoGlitch {
    0% { transform: translate(0); }
    20% { transform: translate(-2px, 2px); }
    40% { transform: translate(2px, -2px); }
    60% { transform: translate(-1px, -1px); }
    80% { transform: translate(1px, 1px); }
    100% { transform: translate(0); }
}

/* POWER USER TOOLBAR (shared) */
.power-toolbar {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 100;
    display: flex;
    align-items: center;
    gap: 0;
    background: var(--bg-secondary, #f5f2ee);
    border: 1px solid var(--border-color, #e5e5e5);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    font-family: 'VT323', monospace;
}

body.dark-mode .power-toolbar {
    background: var(--bg-secondary, #252525);
    border-color: var(--border-color, #333);
}

.power-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.55rem 0.7rem;
    color: var(--text-light, #888);
    font-size: 1.1rem;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    border-right: 1px solid var(--border-color, #e5e5e5);
    font-family: 'VT323', monospace;
    line-height: 1;
}

body.dark-mode .power-btn {
    border-right-color: var(--border-color, #333);
}

.power-btn:last-child {
    border-right: none;
}

.power-btn:hover {
    background: rgba(230, 126, 34, 0.1);
    color: var(--text-primary, #000);
}

.power-btn.active {
    color: #e67e22;
}

.power-btn svg {
    width: 18px;
    height: 18px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.power-btn .btn-label {
    font-size: 0.75rem;
    letter-spacing: 0.02em;
}

.power-btn kbd {
    font-size: 0.6rem;
    background: rgba(128, 128, 128, 0.15);
    padding: 0.1rem 0.3rem;
    border-radius: 3px;
    color: var(--text-light, #888);
    font-family: 'Monaco', 'Menlo', monospace;
}

.power-btn .moon-icon { display: inline; }
.power-btn .sun-icon { display: none; }
body.dark-mode .power-btn .moon-icon { display: none; }
body.dark-mode .power-btn .sun-icon { display: inline; }

@media (max-width: 600px) {
    .power-toolbar {
        bottom: 1rem;
        right: 1rem;
    }
    .power-btn .btn-label,
    .power-btn kbd {
        display: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    body:not(.no-transition) {
        animation: none;
    }
    body.crt-mode {
        animation: none;
    }
    .scroll-reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }
    .scroll-stagger > * {
        opacity: 1;
        transform: none;
        transition: none;
    }
    .confetti-piece {
        display: none;
    }
}