* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-color: #0a0e14;
    --terminal-bg: #1a1e26;
    --text-color: #e6e6e6;
    --prompt-color: #00ff00;
    --command-color: #00d9ff;
    --output-color: #c5c5c5;
    --header-bg: #161a21;
    --button-red: #ff5f56;
    --button-yellow: #ffbd2e;
    --button-green: #27c93f;
    --accent-color: #00ff00;
    --hover-color: #00d9ff;
}

/* Windows XP mode - nostalgic Bliss background */
body.xp-mode {
    background: linear-gradient(to bottom,
        #5a9fd4 0%,
        #7db9e8 40%,
        #86c5f0 50%,
        #b7d8f0 60%,
        #c9e4f5 70%,
        #90c0e8 80%,
        #5a9fd4 100%
    );
    background-attachment: fixed;
    position: relative;
}

body.xp-mode::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(ellipse at 50% 60%, transparent 30%, rgba(90, 159, 212, 0.2) 70%),
        radial-gradient(ellipse at 30% 40%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        linear-gradient(to bottom,
            rgba(135, 206, 235, 0.3) 0%,
            transparent 40%,
            rgba(34, 139, 34, 0.15) 60%,
            rgba(34, 139, 34, 0.25) 100%
        );
    z-index: -1;
    pointer-events: none;
}

body.xp-mode .terminal-container {
    background: rgba(26, 30, 38, 0.85);
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4),
                0 0 0 1px rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

body.xp-mode .terminal-header {
    background: linear-gradient(to bottom,
        rgba(0, 88, 238, 0.9) 0%,
        rgba(0, 60, 215, 0.9) 50%,
        rgba(0, 40, 180, 0.9) 100%
    );
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
}

body.xp-mode .terminal-title,
body.xp-mode .title-user,
body.xp-mode .title-host,
body.xp-mode .title-path,
body.xp-mode .title-prompt,
body.xp-mode .title-at,
body.xp-mode .title-separator {
    color: #ffffff !important;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
    animation: none !important;
    filter: none !important;
}

body.xp-mode .mode-toggle {
    border-color: rgba(255, 255, 255, 0.7);
    color: rgba(255, 255, 255, 0.9);
    background: rgba(255, 255, 255, 0.1);
}

body.xp-mode .mode-toggle:hover {
    background: rgba(255, 255, 255, 0.3);
    color: #ffffff;
    border-color: #ffffff;
}

body.xp-mode .btn.close {
    background: linear-gradient(to bottom, #ff6b6b 0%, #cc0000 100%);
}

body.xp-mode .btn.minimize {
    background: linear-gradient(to bottom, #ffd93d 0%, #ffb000 100%);
}

body.xp-mode .btn.maximize {
    background: linear-gradient(to bottom, #6bcf7f 0%, #2fb344 100%);
}

body.xp-mode .quick-btn {
    background: linear-gradient(to bottom,
        rgba(236, 233, 216, 0.9) 0%,
        rgba(208, 206, 194, 0.9) 100%
    );
    border: 1px solid rgba(0, 60, 116, 0.5);
    color: #000000;
    text-shadow: none;
    box-shadow: inset -1px -1px 0 rgba(0, 0, 0, 0.2),
                inset 1px 1px 0 rgba(255, 255, 255, 0.7);
}

body.xp-mode .quick-btn:hover {
    background: linear-gradient(to bottom,
        rgba(255, 240, 165, 0.95) 0%,
        rgba(252, 213, 122, 0.95) 100%
    );
    border-color: rgba(0, 60, 116, 0.8);
    box-shadow: inset -1px -1px 0 rgba(0, 0, 0, 0.3),
                inset 1px 1px 0 rgba(255, 255, 255, 0.9),
                0 0 8px rgba(255, 240, 165, 0.5);
}

/* retro mode colors - vintage IBM/Macintosh terminal */
body.retro-mode {
    --bg-color: #000000;
    --terminal-bg: #000000;
    --text-color: #33ff33;
    --prompt-color: #33ff33;
    --command-color: #33ff33;
    --output-color: #33ff33;
    --header-bg: #1a1a1a;
    --accent-color: #33ff33;
    --hover-color: #66ff66;
    background: #000000;
    font-family: 'Courier New', 'Courier', monospace;
}

body.retro-mode .terminal-container {
    box-shadow: 0 0 20px rgba(51, 255, 51, 0.3),
                inset 0 0 100px rgba(51, 255, 51, 0.05);
    border: 2px solid #2a2a2a;
}

body.retro-mode * {
    text-shadow: 0 0 3px rgba(51, 255, 51, 0.7);
}

body.retro-mode .terminal-body {
    background: repeating-linear-gradient(
        0deg,
        rgba(0, 0, 0, 0.15),
        rgba(0, 0, 0, 0.15) 1px,
        transparent 1px,
        transparent 2px
    );
    animation: scanlines 8s linear infinite;
}

@keyframes scanlines {
    0% {
        background-position: 0 0;
    }
    100% {
        background-position: 0 100%;
    }
}

body.retro-mode .terminal-title,
body.retro-mode .title-user,
body.retro-mode .title-host,
body.retro-mode .title-path,
body.retro-mode .title-prompt,
body.retro-mode .title-at,
body.retro-mode .title-separator {
    color: #33ff33 !important;
    text-shadow: 0 0 5px rgba(51, 255, 51, 0.8);
    animation: none !important;
    filter: none !important;
}

body.retro-mode .quick-btn {
    background: transparent;
    border: 1px solid #33ff33;
    color: #33ff33;
    text-shadow: 0 0 3px rgba(51, 255, 51, 0.7);
}

body.retro-mode .quick-btn:hover {
    background: #33ff33;
    color: #000000;
    box-shadow: 0 0 10px rgba(51, 255, 51, 0.8);
    text-shadow: none;
}

body.retro-mode .mode-toggle {
    border-color: #33ff33;
    color: #33ff33;
}

body.retro-mode .mode-toggle:hover {
    background: #33ff33;
    color: #000000;
}

body.retro-mode .terminal-input {
    caret-color: #33ff33;
}

body.retro-mode .btn.close,
body.retro-mode .btn.minimize,
body.retro-mode .btn.maximize {
    background: #33ff33;
    box-shadow: 0 0 5px rgba(51, 255, 51, 0.5);
}

/* funky mode colors */
body.funky-mode {
    --bg-color: #1a0033;
    --terminal-bg: #0d0221;
    --text-color: #f0f0f0;
    --prompt-color: #ff00ff;
    --command-color: #00ffff;
    --output-color: #e0e0e0;
    --header-bg: #0a0119;
    --accent-color: #ff00ff;
    --hover-color: #ffff00;
    background: linear-gradient(135deg, #1a0033 0%, #0d0221 50%, #1a0033 100%);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

body {
    font-family: 'Courier New', 'Monaco', monospace;
    background: linear-gradient(135deg, var(--bg-color) 0%, #0f1419 100%);
    color: var(--text-color);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    line-height: 1.6;
}

.terminal-container {
    width: 100%;
    max-width: 1000px;
    background: var(--terminal-bg);
    border-radius: 8px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    overflow: hidden;
    animation: fadeIn 0.5s ease-in;
    position: relative;
}

body.funky-mode .terminal-container {
    box-shadow: 0 20px 60px rgba(255, 0, 255, 0.3),
                0 0 30px rgba(0, 255, 255, 0.2);
    animation: fadeIn 0.5s ease-in, borderGlow 2s ease-in-out infinite alternate;
}

@keyframes borderGlow {
    0% {
        box-shadow: 0 20px 60px rgba(255, 0, 255, 0.3),
                    0 0 30px rgba(0, 255, 255, 0.2);
    }
    100% {
        box-shadow: 0 20px 60px rgba(0, 255, 255, 0.3),
                    0 0 30px rgba(255, 255, 0, 0.2);
    }
}

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

.terminal-header {
    background: var(--header-bg);
    padding: 10px 15px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid #2a2e36;
}

.terminal-buttons {
    display: flex;
    gap: 8px;
    margin-right: 15px;
}

.btn {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    display: inline-block;
}

.btn.close {
    background: var(--button-red);
}

.btn.minimize {
    background: var(--button-yellow);
}

.btn.maximize {
    background: var(--button-green);
}

.terminal-title {
    display: flex;
    align-items: center;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0.5px;
    font-family: 'Monaco', 'Menlo', 'Courier New', monospace;
}

.title-user {
    color: #00ff88;
    text-shadow: 0 0 8px rgba(0, 255, 136, 0.5);
    font-weight: 700;
    animation: pulseGlow 3s ease-in-out infinite;
}

.title-at {
    color: var(--output-color);
    margin: 0 2px;
    opacity: 0.7;
}

.title-host {
    color: #00d9ff;
    font-weight: 600;
}

.title-separator {
    color: var(--output-color);
    margin: 0 3px;
    opacity: 0.7;
}

.title-path {
    color: #ffa500;
    font-weight: 600;
}

.title-prompt {
    color: var(--prompt-color);
    margin-left: 3px;
    animation: blink 1.5s step-end infinite;
}

@keyframes pulseGlow {
    0%, 100% {
        text-shadow: 0 0 8px rgba(0, 255, 136, 0.5);
    }
    50% {
        text-shadow: 0 0 12px rgba(0, 255, 136, 0.8), 0 0 16px rgba(0, 255, 136, 0.4);
    }
}

@keyframes blink {
    0%, 50% {
        opacity: 1;
    }
    51%, 100% {
        opacity: 0.3;
    }
}

/* Funky mode variations */
body.funky-mode .title-user {
    color: #ff00ff;
    text-shadow: 0 0 10px rgba(255, 0, 255, 0.6);
    animation: pulseGlowFunky 2s ease-in-out infinite, rainbowShift 6s linear infinite;
}

body.funky-mode .title-host {
    color: #00ffff;
    animation: rainbowShift 6s linear infinite 2s;
}

body.funky-mode .title-path {
    color: #ffff00;
}

body.funky-mode .title-prompt {
    color: #ff00ff;
}

@keyframes pulseGlowFunky {
    0%, 100% {
        text-shadow: 0 0 10px rgba(255, 0, 255, 0.6);
    }
    50% {
        text-shadow: 0 0 20px rgba(255, 0, 255, 0.9), 0 0 30px rgba(255, 0, 255, 0.5);
    }
}

@keyframes rainbowShift {
    0% { filter: hue-rotate(0deg); }
    100% { filter: hue-rotate(360deg); }
}

.mode-toggle {
    margin-left: 8px;
    background: transparent;
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    padding: 4px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    transition: all 0.3s ease;
}

.mode-toggle:first-of-type {
    margin-left: auto;
}

.mode-toggle:hover {
    background: var(--accent-color);
    color: var(--terminal-bg);
    transform: scale(1.1);
}

body.funky-mode .mode-toggle {
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.terminal-body {
    padding: 20px;
    min-height: 400px;
    max-height: 70vh;
    overflow-y: auto;
}

.terminal-output {
    margin-bottom: 20px;
}

.welcome-message {
    margin-bottom: 20px;
}

.ascii-art {
    color: var(--accent-color);
    font-size: 12px;
    line-height: 1.2;
    margin-bottom: 15px;
}

body.funky-mode .ascii-art {
    animation: rainbow 3s linear infinite;
}

@keyframes rainbow {
    0% { color: #ff00ff; }
    16% { color: #00ffff; }
    33% { color: #ffff00; }
    50% { color: #ff00ff; }
    66% { color: #00ffff; }
    83% { color: #ffff00; }
    100% { color: #ff00ff; }
}

.terminal-output p {
    margin: 5px 0;
    color: var(--output-color);
}

.command-hint {
    color: var(--command-color);
    font-weight: bold;
    padding: 2px 6px;
    background: rgba(0, 217, 255, 0.1);
    border-radius: 3px;
}

.quick-commands {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 20px 0;
    padding: 15px;
    background: rgba(0, 255, 0, 0.05);
    border-radius: 5px;
    border: 1px solid rgba(0, 255, 0, 0.2);
}

.quick-btn {
    background: transparent;
    color: var(--accent-color);
    border: 1px solid var(--accent-color);
    padding: 8px 16px;
    border-radius: 4px;
    cursor: pointer;
    font-family: 'Courier New', monospace;
    font-size: 14px;
    transition: all 0.3s ease;
}

.quick-btn:hover {
    background: var(--accent-color);
    color: var(--terminal-bg);
    transform: translateY(-2px);
}

body.funky-mode .quick-btn {
    position: relative;
    overflow: hidden;
}

body.funky-mode .quick-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

body.funky-mode .quick-btn:hover::before {
    left: 100%;
}

.input-line {
    display: flex;
    align-items: center;
    margin-top: 15px;
}

.prompt {
    color: var(--prompt-color);
    margin-right: 10px;
    white-space: nowrap;
    font-weight: bold;
}

.terminal-input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-color);
    font-family: 'Courier New', monospace;
    font-size: 16px;
    outline: none;
    caret-color: var(--accent-color);
}

.output-block {
    margin: 15px 0;
    padding-left: 10px;
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-10px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.command-line {
    color: var(--prompt-color);
    margin-bottom: 10px;
}

.command-text {
    color: var(--command-color);
}

.output-text {
    color: var(--output-color);
    white-space: pre-wrap;
    word-wrap: break-word;
}

.output-text a {
    color: var(--hover-color);
    text-decoration: none;
    border-bottom: 1px dotted var(--hover-color);
}

.output-text a:hover {
    color: var(--accent-color);
    border-bottom-color: var(--accent-color);
}

.error-text {
    color: #ff6b6b;
}

.success-text {
    color: var(--accent-color);
}

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

/* scrollbar styling */
.terminal-body::-webkit-scrollbar {
    width: 10px;
}

.terminal-body::-webkit-scrollbar-track {
    background: var(--header-bg);
}

.terminal-body::-webkit-scrollbar-thumb {
    background: #2a2e36;
    border-radius: 5px;
}

.terminal-body::-webkit-scrollbar-thumb:hover {
    background: #3a3e46;
}

/* mobile responsive */
@media (max-width: 768px) {
    body {
        padding: 10px;
        align-items: flex-start;
        padding-top: 20px;
    }

    .terminal-container {
        max-width: 100%;
    }

    .terminal-body {
        padding: 15px;
        max-height: 80vh;
    }

    .ascii-art {
        font-size: 10px;
    }

    .quick-commands {
        gap: 8px;
        padding: 10px;
    }

    .quick-btn {
        padding: 6px 12px;
        font-size: 13px;
    }

    .terminal-input {
        font-size: 14px;
    }

    .prompt {
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .terminal-header {
        padding: 8px 12px;
    }

    .terminal-title {
        font-size: 11px;
    }

    .title-user {
        font-size: 11px;
    }

    .btn {
        width: 10px;
        height: 10px;
    }

    .terminal-buttons {
        gap: 6px;
    }

    .quick-commands {
        flex-direction: column;
    }

    .quick-btn {
        width: 100%;
    }

    .ascii-art {
        font-size: 8px;
    }
}