:root {
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

:root[data-theme="red"] {
    --bg-primary: #000000;
    --bg-secondary: #0a0a0a;
    --bg-tertiary: #111111;
    --text-primary: #ff3366;
    --text-secondary: #cc2952;
    --accent: #ff3366;
    --accent-hover: #ff5577;
    --border: #1a1a1a;
    --success: #ff3366;
    --error: #ff0040;
    --warning: #ffaa00;
    --shadow: rgba(255, 51, 102, 0.15);
    --glow: rgba(255, 51, 102, 0.6);
}

:root[data-theme="green"] {
    --bg-primary: #000000;
    --bg-secondary: #0a0a0a;
    --bg-tertiary: #111111;
    --text-primary: #00ff88;
    --text-secondary: #00cc6e;
    --accent: #00ff88;
    --accent-hover: #33ffaa;
    --border: #1a1a1a;
    --success: #00ff88;
    --error: #ff0040;
    --warning: #ffaa00;
    --shadow: rgba(0, 255, 136, 0.15);
    --glow: rgba(0, 255, 136, 0.6);
}

:root[data-theme="purple"] {
    --bg-primary: #000000;
    --bg-secondary: #0a0a0a;
    --bg-tertiary: #111111;
    --text-primary: #b366ff;
    --text-secondary: #9152cc;
    --accent: #b366ff;
    --accent-hover: #c788ff;
    --border: #1a1a1a;
    --success: #b366ff;
    --error: #ff0040;
    --warning: #ffaa00;
    --shadow: rgba(179, 102, 255, 0.15);
    --glow: rgba(179, 102, 255, 0.6);
}

:root[data-theme="sky"] {
    --bg-primary: #000000;
    --bg-secondary: #0a0a0a;
    --bg-tertiary: #111111;
    --text-primary: #00d4ff;
    --text-secondary: #00a8cc;
    --accent: #00d4ff;
    --accent-hover: #33ddff;
    --border: #1a1a1a;
    --success: #00d4ff;
    --error: #ff0040;
    --warning: #ffaa00;
    --shadow: rgba(0, 212, 255, 0.15);
    --glow: rgba(0, 212, 255, 0.6);
}

:root[data-theme="orange"] {
    --bg-primary: #000000;
    --bg-secondary: #0a0a0a;
    --bg-tertiary: #111111;
    --text-primary: #ff8800;
    --text-secondary: #cc6e00;
    --accent: #ff8800;
    --accent-hover: #ffaa33;
    --border: #1a1a1a;
    --success: #ff8800;
    --error: #ff0040;
    --warning: #ffaa00;
    --shadow: rgba(255, 136, 0, 0.15);
    --glow: rgba(255, 136, 0, 0.6);
}

:root[data-theme="pink"] {
    --bg-primary: #000000;
    --bg-secondary: #0a0a0a;
    --bg-tertiary: #111111;
    --text-primary: #ff66cc;
    --text-secondary: #cc52a3;
    --accent: #ff66cc;
    --accent-hover: #ff88dd;
    --border: #1a1a1a;
    --success: #ff66cc;
    --error: #ff0040;
    --warning: #ffaa00;
    --shadow: rgba(255, 102, 204, 0.15);
    --glow: rgba(255, 102, 204, 0.6);
}

:root[data-theme="yellow"] {
    --bg-primary: #000000;
    --bg-secondary: #0a0a0a;
    --bg-tertiary: #111111;
    --text-primary: #ffdd00;
    --text-secondary: #ccb100;
    --accent: #ffdd00;
    --accent-hover: #ffee33;
    --border: #1a1a1a;
    --success: #ffdd00;
    --error: #ff0040;
    --warning: #ffaa00;
    --shadow: rgba(255, 221, 0, 0.15);
    --glow: rgba(255, 221, 0, 0.6);
}

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

body {
    font-family: 'Courier New', 'Courier', monospace;
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: color 0.8s cubic-bezier(0.4, 0, 0.2, 1), background 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    min-height: 100vh;
    padding: 20px;
    position: relative;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 2px,
            rgba(255, 51, 102, 0.03) 2px,
            rgba(255, 51, 102, 0.03) 4px
        );
    pointer-events: none;
    z-index: 1;
}

body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% 50%, rgba(255, 51, 102, 0.05) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

.theme-toggle {
    position: absolute;
    top: 20px;
    left: 20px;
    width: 50px;
    height: 50px;
    background: var(--bg-secondary);
    border: 2px solid var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
    box-shadow: 0 0 20px var(--glow);
}

.theme-toggle:hover {
    box-shadow: 0 0 30px var(--glow), inset 0 0 20px rgba(255, 255, 255, 0.1);
    border-color: var(--accent-hover);
    transform: scale(1.1) rotate(15deg);
}

.theme-toggle svg {
    width: 24px;
    height: 24px;
    color: var(--accent);
    position: absolute;
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.theme-toggle .theme-icon {
    opacity: 0;
    transform: rotate(180deg) scale(0);
}

.theme-toggle .theme-icon.active {
    opacity: 1;
    transform: rotate(0deg) scale(1);
}

[data-theme="red"] .theme-icon-red,
[data-theme="green"] .theme-icon-green,
[data-theme="purple"] .theme-icon-purple,
[data-theme="sky"] .theme-icon-sky,
[data-theme="orange"] .theme-icon-orange,
[data-theme="pink"] .theme-icon-pink,
[data-theme="yellow"] .theme-icon-yellow {
    opacity: 1;
    transform: rotate(0deg) scale(1);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 20px;
    position: relative;
    z-index: 2;
}

header {
    text-align: center;
    margin-bottom: 40px;
    animation: fadeInDown 1s ease;
}

header h1 {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 10px;
    letter-spacing: 8px;
    text-transform: uppercase;
    text-shadow: 
        0 0 10px var(--glow),
        0 0 20px var(--glow),
        0 0 30px var(--glow);
    font-family: 'Courier New', monospace;
    position: relative;
}

header h1::before {
    content: '> ';
    color: var(--accent);
    animation: blink 1s infinite;
}

header h1::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    box-shadow: 0 0 10px var(--glow);
}

.subtitle {
    color: var(--text-secondary);
    font-size: 0.9rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    opacity: 0.8;
}

.tab-nav {
    display: flex;
    gap: 2px;
    margin-bottom: 30px;
    background: transparent;
    padding: 0;
    border: 1px solid var(--border);
    animation: fadeIn 1s ease;
}

.tab-btn {
    flex: 1;
    background: transparent;
    border: none;
    border-right: 1px solid var(--border);
    padding: 15px 20px;
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.4s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-family: 'Courier New', monospace;
}

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

.tab-btn svg {
    width: 16px;
    height: 16px;
}

.tab-btn:hover {
    background: var(--bg-tertiary);
    color: var(--accent);
    box-shadow: inset 0 0 20px rgba(255, 51, 102, 0.1);
}

.tab-btn.active {
    background: transparent;
    color: var(--accent);
    border-bottom: 2px solid var(--accent);
    box-shadow: 0 0 15px var(--glow);
}

.tab-panel {
    display: none;
    animation: fadeIn 0.6s ease;
}

.tab-panel.active {
    display: block;
}

.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    padding: 20px;
    margin-bottom: 15px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    animation: slideUp 0.6s ease;
    position: relative;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: var(--accent);
    opacity: 0;
    transition: opacity 0.5s ease;
}

.card:hover::before {
    opacity: 1;
    box-shadow: 0 0 10px var(--glow);
}

.card:hover {
    border-color: var(--accent);
    box-shadow: 0 0 30px rgba(255, 51, 102, 0.3);
}

.card h3 {
    font-size: 1rem;
    margin-bottom: 20px;
    color: var(--accent);
    display: flex;
    align-items: center;
    gap: 8px;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 700;
}

.card h3::before {
    content: '//';
    color: var(--text-secondary);
    margin-right: 5px;
}

.input-field {
    margin-bottom: 16px;
}

.input-field:last-child {
    margin-bottom: 0;
}

.input-field label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.input-field input[type="text"],
.input-field input[type="number"],
.input-field input[type="password"],
.input-field textarea {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    color: var(--accent);
    font-size: 0.9rem;
    transition: all 0.4s ease;
    font-family: 'Courier New', monospace;
}

.input-field input[type="text"]:focus,
.input-field input[type="number"]:focus,
.input-field input[type="password"]:focus,
.input-field textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 10px var(--glow), inset 0 0 10px rgba(255, 51, 102, 0.1);
}

.input-field textarea {
    resize: vertical;
    min-height: 100px;
}

.input-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.slider-container {
    display: flex;
    align-items: center;
    gap: 12px;
}

.slider-container input[type="range"] {
    flex: 1;
    height: 4px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    outline: none;
    -webkit-appearance: none;
}

.slider-container input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    background: var(--accent);
    cursor: pointer;
    transition: all 0.4s ease;
    box-shadow: 0 0 10px var(--glow);
}

.slider-container input[type="range"]::-webkit-slider-thumb:hover {
    box-shadow: 0 0 20px var(--glow);
}

.slider-value {
    min-width: 40px;
    text-align: center;
    font-weight: 700;
    color: var(--accent);
    font-size: 1rem;
    font-family: 'Courier New', monospace;
}

.checkbox-field {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.checkbox-field input[type="checkbox"] {
    appearance: none;
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border: 2px solid var(--accent);
    background: var(--bg-primary);
    cursor: pointer;
    position: relative;
    transition: all 0.3s ease;
    box-shadow: 0 0 0 rgba(255, 51, 102, 0);
}

.checkbox-field input[type="checkbox"]:hover {
    border-color: var(--accent);
    box-shadow: 0 0 10px var(--glow);
}

.checkbox-field input[type="checkbox"]:checked {
    background: var(--accent);
    border-color: var(--accent);
    box-shadow: 0 0 15px var(--glow);
}

.checkbox-field input[type="checkbox"]:checked::before {
    content: '';
    position: absolute;
    top: 2px;
    left: 5px;
    width: 6px;
    height: 10px;
    border: solid var(--bg-primary);
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.checkbox-field label {
    font-weight: 600;
    cursor: pointer;
    color: var(--text-secondary);
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 1px;
}

.hidden {
    display: none !important;
}

.proxy-input {
    transition: all 0.5s ease;
    max-height: 200px;
    overflow: hidden;
}

.proxy-input.hidden {
    max-height: 0;
    margin: 0;
    opacity: 0;
}

.btn {
    padding: 12px 24px;
    border: 1px solid var(--accent);
    background: transparent;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.4s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 12px;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-family: 'Courier New', monospace;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--accent);
    transition: left 0.5s ease;
    z-index: -1;
}

.btn:hover::before {
    left: 0;
}

.btn:hover {
    color: var(--bg-primary);
    box-shadow: 0 0 20px var(--glow);
}

.btn svg {
    width: 16px;
    height: 16px;
}

.btn-primary {
    background: transparent;
    color: var(--accent);
}

.btn-secondary {
    border-color: var(--error);
    color: var(--error);
}

.btn-secondary::before {
    background: var(--error);
}

.btn-secondary:hover {
    color: var(--bg-primary);
    box-shadow: 0 0 20px rgba(255, 0, 64, 0.5);
}

.btn-group {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.output-card {
    animation-delay: 0.2s;
}

.output-box {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    padding: 16px;
    min-height: 200px;
    max-height: 400px;
    overflow-y: auto;
    overflow-x: auto;
    font-family: 'Courier New', monospace;
    font-size: 0.85rem;
    line-height: 1.6;
    color: var(--text-primary);
    word-wrap: break-word;
    overflow-wrap: anywhere;
}

.output-box::-webkit-scrollbar {
    width: 6px;
}

.output-box::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

.output-box::-webkit-scrollbar-thumb {
    background: var(--accent);
    box-shadow: 0 0 10px var(--glow);
}

.status-bar {
    margin-top: 16px;
    padding: 12px 16px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    font-family: 'Courier New', monospace;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 1px;
}

.status-indicator {
    width: 8px;
    height: 8px;
    background: var(--success);
    animation: pulse 2s infinite;
    box-shadow: 0 0 10px var(--glow);
}

.valid-mac {
    background: rgba(255, 51, 102, 0.05);
    border: 1px solid var(--success);
    border-left: 3px solid var(--success);
    padding: 16px;
    margin: 10px 0;
    animation: slideInLeft 0.5s ease;
}

.invalid-mac {
    background: rgba(255, 0, 64, 0.05);
    border: 1px solid var(--error);
    border-left: 3px solid var(--error);
    padding: 12px;
    margin: 8px 0;
    animation: slideInLeft 0.5s ease;
}

.checking {
    background: rgba(255, 170, 0, 0.05);
    border: 1px solid var(--warning);
    border-left: 3px solid var(--warning);
    padding: 12px;
    margin: 8px 0;
    animation: slideInLeft 0.5s ease;
}

.proxy-results {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.success-title {
    color: var(--success);
}

.error-title {
    color: var(--error);
}

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

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

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

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

@keyframes blink {
    0%, 49% {
        opacity: 1;
    }
    50%, 100% {
        opacity: 0;
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.footer {
    text-align: center;
    padding: 60px 20px;
    margin-top: 80px;
    position: relative;
}

.footer-text {
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--accent);
    position: relative;
    display: inline-block;
    animation: glitchText 3s infinite;
}

.footer-text::before,
.footer-text::after {
    content: 'MADE BY WALTER';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.footer-text::before {
    animation: glitch1 2s infinite;
    color: var(--accent);
    opacity: 0.8;
    z-index: -1;
}

.footer-text::after {
    animation: glitch2 3s infinite;
    color: var(--accent-hover);
    opacity: 0.6;
    z-index: -2;
}

@keyframes glitchText {
    0%, 100% {
        text-shadow: 
            0 0 10px var(--glow),
            0 0 20px var(--glow),
            0 0 30px var(--glow);
    }
    25% {
        text-shadow: 
            -2px 0 var(--glow),
            2px 2px var(--glow),
            0 0 30px var(--glow);
    }
    50% {
        text-shadow: 
            2px -2px var(--glow),
            -2px 2px var(--glow),
            0 0 30px var(--glow);
    }
    75% {
        text-shadow: 
            -2px -2px var(--glow),
            2px 0 var(--glow),
            0 0 30px var(--glow);
    }
}

@keyframes glitch1 {
    0%, 100% {
        clip-path: inset(0 0 0 0);
    }
    10% {
        clip-path: inset(10% 0 85% 0);
    }
    20% {
        clip-path: inset(80% 0 15% 0);
    }
    30% {
        clip-path: inset(50% 0 30% 0);
    }
    40% {
        clip-path: inset(20% 0 60% 0);
    }
}

@keyframes glitch2 {
    0%, 100% {
        clip-path: inset(0 0 0 0);
        transform: translate(0);
    }
    20% {
        clip-path: inset(15% 0 75% 0);
        transform: translate(-2px, 2px);
    }
    40% {
        clip-path: inset(70% 0 20% 0);
        transform: translate(2px, -2px);
    }
    60% {
        clip-path: inset(40% 0 40% 0);
        transform: translate(-2px, -2px);
    }
    80% {
        clip-path: inset(25% 0 60% 0);
        transform: translate(2px, 2px);
    }
}

@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
        letter-spacing: 4px;
    }

    .input-row,
    .proxy-results {
        grid-template-columns: 1fr;
    }

    .btn-group {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .tab-btn {
        font-size: 0.7rem;
        padding: 12px 10px;
    }

    .tab-btn svg {
        width: 14px;
        height: 14px;
    }

    .footer-text {
        font-size: 1rem;
        letter-spacing: 2px;
    }
}