* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Fira Code', 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

:root {
    --bg-gradient-start: #0a0c14;
    --bg-gradient-end: #141b2b;
    --text-primary: #ffffff;
    --text-secondary: #9aa8c7;
    --accent-primary: #5f5cf0;
    --accent-secondary: #b86ad9;
    --code-bg: rgba(10, 14, 23, 0.9);
    --code-header: rgba(20, 25, 40, 0.95);
    --code-text: #e2e8f0;
    --code-keyword: #ff79c6;
    --code-function: #50fa7b;
    --code-string: #f1fa8c;
    --code-number: #bd93f9;
    --code-comment: #6272a4;
    --btn-bg: rgba(255, 255, 255, 0.03);
    --btn-border: rgba(255, 255, 255, 0.08);
    --glow-color: rgba(95, 92, 240, 0.3);
}

[data-theme="light"] {
    --bg-gradient-start: #eef2ff;
    --bg-gradient-end: #d0ddff;
    --text-primary: #0b0f1a;
    --text-secondary: #2d3a5e;
    --accent-primary: #5a4bda;
    --accent-secondary: #b87cf7;
    --code-bg: rgba(255, 255, 255, 0.9);
    --code-header: rgba(240, 245, 255, 0.95);
    --code-text: #1a2639;
    --code-keyword: #bd3c9c;
    --code-function: #0f7b3a;
    --code-string: #b8860b;
    --code-number: #6b4f9c;
    --code-comment: #6b7280;
    --btn-bg: rgba(0, 0, 0, 0.02);
    --btn-border: rgba(0, 0, 0, 0.1);
    --glow-color: rgba(90, 75, 218, 0.2);
}

body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(145deg, var(--bg-gradient-start), var(--bg-gradient-end));
    color: var(--text-primary);
    padding: 16px;
    position: relative;
}

.gradient-orb {
    position: fixed;
    width: 70vmax;
    height: 70vmax;
    border-radius: 50%;
    opacity: 0.1;
    filter: blur(100px);
    z-index: 0;
    animation: float 25s infinite alternate ease-in-out;
    pointer-events: none;
}

.orb-1 {
    top: -20vmax;
    left: -10vmax;
    background: radial-gradient(circle, #8a7aff, transparent 70%);
}

.orb-2 {
    bottom: -20vmax;
    right: -10vmax;
    background: radial-gradient(circle, #ff7ae9, transparent 70%);
    animation-delay: -7s;
}

@keyframes float {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(8%, 8%) scale(1.2); }
}

.split-layout {
    display: flex;
    width: 1400px;
    max-width: 100%;
    min-height: 700px;
    gap: 24px;
    position: relative;
    z-index: 10;
    flex-wrap: wrap;
}

.info-panel {
    flex: 1.1;
    min-width: 380px;
    padding: 40px 20px 40px 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.code-panel {
    flex: 1;
    min-width: 450px;
    padding: 0px 40px 70px 20px;
    display: flex;
    align-items: center;
}

.code-window {
    width: 100%;
    background: var(--code-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 40px 80px -20px rgba(0, 0, 0, 0.7), 0 0 0 1px var(--btn-border);
    transition: transform 0.3s, box-shadow 0.3s;
}

.code-window:hover {
    transform: translateY(-5px);
    box-shadow: 0 50px 100px -20px var(--accent-primary), 0 0 0 1px var(--btn-border);
}

.code-header {
    background: var(--code-header);
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid var(--btn-border);
}

.window-dots {
    display: flex;
    gap: 8px;
}

.dot {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: #ff5f56;
}

.dot:nth-child(2) {
    background: #ffbd2e;
}

.dot:nth-child(3) {
    background: #27c93f;
}

.file-name {
    color: var(--text-secondary);
    font-size: 14px;
    margin-left: 8px;
    font-family: 'Fira Code', monospace;
    opacity: 0.8;
}

.code-body {
    padding: 24px;
    font-family: 'Fira Code', monospace;
    font-size: 15px;
    line-height: 1.6;
    color: var(--code-text);
    min-height: 400px;
    white-space: pre-wrap;
    word-break: break-word;
    background: transparent;
}

.keyword { color: var(--code-keyword); font-weight: 500; }
.function { color: var(--code-function); }
.string { color: var(--code-string); }
.number { color: var(--code-number); }
.comment { color: var(--code-comment); }

.cursor {
    display: inline-block;
    width: 3px;
    height: 1.2em;
    background: var(--accent-primary);
    margin-left: 2px;
    vertical-align: middle;
    animation: blink 1s infinite;
}

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

.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 60px;
    flex-wrap: wrap;
    gap: 20px;
}

.logo-large {
    font-size: clamp(48px, 8vw, 72px);
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    letter-spacing: -1px;
}

.controls-group {
    display: flex;
    gap: 8px;
    background: var(--btn-bg);
    padding: 6px;
    border-radius: 60px;
    border: 1px solid var(--btn-border);
    backdrop-filter: blur(12px);
    flex-wrap: wrap;
    justify-content: flex-end;
}

.icon-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    width: 44px;
    height: 44px;
    border-radius: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 18px;
    font-weight: 500;
    transition: all 0.2s;
    border: 1px solid transparent;
    text-decoration: none;
}

.icon-btn:hover {
    background: var(--accent-primary);
    color: white;
    transform: scale(1.08);
    border-color: var(--accent-primary);
}

.icon-btn.active-lang {
    background: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
    box-shadow: 0 0 20px var(--accent-primary);
}

.greeting {
    font-size: clamp(16px, 2vw, 20px);
    color: var(--accent-secondary);
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 400;
}

.description-text {
    font-size: clamp(18px, 2.2vw, 22px);
    line-height: 1.5;
    color: var(--text-secondary);
    margin-bottom: 50px;
    max-width: 500px;
    font-weight: 400;
    border-left: 4px solid var(--accent-primary);
    padding-left: clamp(16px, 3vw, 28px);
}

.contact-button {
    background: linear-gradient(115deg, var(--accent-primary), var(--accent-secondary));
    border: none;
    padding: clamp(14px, 2.5vw, 18px) clamp(32px, 5vw, 48px);
    border-radius: 60px;
    font-size: clamp(18px, 2.2vw, 22px);
    font-weight: 600;
    color: white;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 14px;
    box-shadow: 0 20px 30px -8px var(--accent-primary);
    transition: all 0.3s ease;
    border: 1px solid rgba(255,255,255,0.2);
    width: fit-content;
    margin-bottom: 30px;
}

.contact-button:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 30px 40px -8px var(--accent-primary);
}

.footer-copyright {
    color: var(--text-secondary);
    font-size: 14px;
    margin-top: auto;
    border-top: 1px solid var(--btn-border);
    padding-top: 30px;
}

@media (max-width: 900px) {
    .split-layout { flex-direction: column; }
    .info-panel, .code-panel {padding: 20px;width: 100%;min-width: auto;}
}