:root {
    color-scheme: dark;
    --bg: #0b111b;
    --ink: #eef2f6;
    --ink-soft: #c0cad6;
    --muted: #9aa6b2;
    --accent: #1b9e88;
    --accent-hover: #117d6b;
    --surface: rgba(18, 26, 38, 0.85);
    --surface-strong: #111a28;
    --surface-elevated: #1a2536;
    --border: rgba(238, 242, 246, 0.1);
    --border-strong: rgba(238, 242, 246, 0.18);
    --shadow: 0 30px 70px -45px rgba(0, 0, 0, 0.8);
    --shadow-soft: 0 18px 40px -28px rgba(0, 0, 0, 0.6);
    --terminal-bg: #0a0e14;
    --terminal-text: #e6e6e6;
    --error: #ef4444;
    --success: #22c55e;
    --warning: #f59e0b;
}

.light,
body:not(.dark) {
    --bg: #f7f4ef;
    --ink: #0c1320;
    --ink-soft: #2f3b4f;
    --muted: #5d6a7a;
    --surface: rgba(255, 255, 255, 0.9);
    --surface-strong: #ffffff;
    --surface-elevated: #f8f9fa;
    --border: rgba(12, 19, 32, 0.1);
    --border-strong: rgba(12, 19, 32, 0.16);
    --shadow: 0 30px 70px -45px rgba(12, 19, 32, 0.35);
    --shadow-soft: 0 18px 40px -28px rgba(12, 19, 32, 0.25);
    --terminal-bg: #1e1e1e;
    --terminal-text: #e6e6e6;
}

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

body {
    font-family: 'Sora', sans-serif;
    color: var(--ink);
    background: var(--bg);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
}

.ambient {
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    overflow: hidden;
}

.orb {
    position: absolute;
    border-radius: 999px;
    filter: blur(100px);
    opacity: 0.5;
    animation: float 16s ease-in-out infinite;
}

.orb-a {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(27, 158, 136, 0.35), transparent 70%);
    top: -150px;
    right: -100px;
}

.orb-b {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(100, 200, 180, 0.25), transparent 70%);
    bottom: -100px;
    left: -100px;
    animation-delay: 3s;
}

.mesh {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(27, 158, 136, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(27, 158, 136, 0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    opacity: 0.4;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

.topbar {
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(16px);
    background: var(--surface);
    border-bottom: 1px solid var(--border);
}

.wrap {
    width: min(1400px, 96vw);
    margin: 0 auto;
}

.topbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 0;
    gap: 16px;
}

.brand {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--ink);
    text-decoration: none;
    letter-spacing: -0.02em;
}

.controls {
    display: flex;
    align-items: center;
    gap: 10px;
}

.lang-switch {
    display: inline-flex;
    padding: 4px;
    border-radius: 999px;
    background: var(--surface-elevated);
    border: 1px solid var(--border);
}

.lang-btn {
    border: none;
    background: transparent;
    padding: 6px 12px;
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.8rem;
    color: var(--muted);
    cursor: pointer;
    transition: all 0.2s;
}

.lang-btn.active {
    background: var(--accent);
    color: #fff;
}

.theme-toggle {
    width: 38px;
    height: 38px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--surface-elevated);
    display: grid;
    place-items: center;
    cursor: pointer;
    transition: all 0.2s;
    color: var(--ink);
}

.theme-toggle:hover {
    border-color: var(--accent);
}

.main-content {
    padding: 40px 0 60px;
}

.connect-section {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 200px);
}

.connect-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 36px;
    width: min(520px, 94vw);
    box-shadow: var(--shadow);
    backdrop-filter: blur(20px);
}

.connect-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 28px;
}

.icon-box {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--accent), var(--accent-hover));
    display: grid;
    place-items: center;
    color: #fff;
    flex-shrink: 0;
}

.connect-header h1 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.connect-header p {
    font-size: 0.9rem;
    color: var(--muted);
}

.connect-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.form-row {
    display: flex;
    gap: 14px;
}

.form-group {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group-small {
    flex: 0 0 100px;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--ink-soft);
}

.form-group input {
    padding: 14px 16px;
    border-radius: 12px;
    border: 1px solid var(--border-strong);
    background: var(--surface-elevated);
    color: var(--ink);
    font-size: 0.95rem;
    font-family: inherit;
    transition: all 0.2s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(27, 158, 136, 0.15);
}

.form-group input::placeholder {
    color: var(--muted);
}

.password-wrapper {
    position: relative;
}

.password-wrapper input {
    width: 100%;
    padding-right: 48px;
}

.toggle-password {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--muted);
    cursor: pointer;
    padding: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.toggle-password svg {
    width: 20px;
    height: 20px;
}

.toggle-password .hidden {
    display: none;
}

.form-actions {
    margin-top: 8px;
}

.btn-primary {
    width: 100%;
    padding: 16px;
    border-radius: 12px;
    border: none;
    background: linear-gradient(135deg, var(--accent), var(--accent-hover));
    color: #fff;
    font-size: 1rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    box-shadow: 0 8px 24px -8px rgba(27, 158, 136, 0.4);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 12px 28px -8px rgba(27, 158, 136, 0.5);
}

.btn-primary:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.btn-primary .spinner {
    width: 20px;
    height: 20px;
    animation: spin 1s linear infinite;
}

.btn-primary .spinner.hidden {
    display: none;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.form-error {
    padding: 14px;
    border-radius: 12px;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: var(--error);
    font-size: 0.9rem;
    text-align: center;
}

.form-error.hidden {
    display: none;
}

.terminal-section {
    padding: 0 2vw;
}

.terminal-section.hidden {
    display: none;
}

.terminal-layout {
    display: flex;
    gap: 20px;
    height: calc(100vh - 160px);
    min-height: 500px;
}

.file-browser {
    width: 280px;
    flex-shrink: 0;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: all 0.3s;
}

.file-browser.collapsed {
    width: 48px;
}

.browser-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
    background: var(--surface-elevated);
}

.browser-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 0.9rem;
}

.file-browser.collapsed .browser-title span {
    display: none;
}

.browser-toggle {
    background: none;
    border: none;
    color: var(--muted);
    cursor: pointer;
    padding: 4px;
    border-radius: 6px;
    transition: all 0.2s;
}

.browser-toggle:hover {
    background: var(--border);
    color: var(--ink);
}

.file-browser.collapsed .browser-toggle svg {
    transform: rotate(180deg);
}

.browser-path {
    padding: 10px 16px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    color: var(--muted);
    background: var(--surface-elevated);
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.file-browser.collapsed .browser-path {
    display: none;
}

.browser-list {
    flex: 1;
    overflow-y: auto;
    padding: 8px;
}

.file-browser.collapsed .browser-list {
    display: none;
}

.browser-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 10px;
    cursor: pointer;
    font-size: 0.85rem;
    color: var(--ink-soft);
    transition: all 0.15s;
    user-select: none;
}

.browser-item:hover {
    background: var(--border);
    color: var(--ink);
}

.browser-item.dir {
    color: var(--accent);
}

.browser-item svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.browser-item-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.browser-item-size {
    font-size: 0.75rem;
    color: var(--muted);
    font-family: 'JetBrains Mono', monospace;
}

.browser-back {
    color: var(--muted);
    font-weight: 600;
}

.terminal-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--terminal-bg);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border);
}

.terminal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 18px;
    background: rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.terminal-info {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.85rem;
    color: var(--terminal-text);
    font-family: 'JetBrains Mono', monospace;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--muted);
}

.status-dot.connected {
    background: var(--success);
    box-shadow: 0 0 8px rgba(34, 197, 94, 0.5);
}

.terminal-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.btn-icon {
    width: 34px;
    height: 34px;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.05);
    color: var(--terminal-text);
    cursor: pointer;
    display: grid;
    place-items: center;
    transition: all 0.2s;
}

.btn-icon:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

.btn-disconnect {
    padding: 8px 16px;
    border-radius: 8px;
    border: 1px solid rgba(239, 68, 68, 0.4);
    background: rgba(239, 68, 68, 0.1);
    color: var(--error);
    font-size: 0.85rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-disconnect:hover {
    background: rgba(239, 68, 68, 0.2);
    border-color: rgba(239, 68, 68, 0.6);
}

.terminal-output {
    flex: 1;
    padding: 16px 20px;
    overflow-y: auto;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9rem;
    line-height: 1.7;
    color: var(--terminal-text);
}

.output-line {
    margin-bottom: 4px;
    word-break: break-all;
    white-space: pre-wrap;
}

.output-command {
    color: var(--accent);
}

.output-command::before {
    content: '$ ';
    color: var(--success);
}

.output-result {
    color: var(--terminal-text);
    opacity: 0.9;
}

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

.output-info {
    color: var(--muted);
    font-style: italic;
}

.terminal-input-form {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 18px;
    background: rgba(0, 0, 0, 0.4);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.prompt {
    color: var(--success);
    font-family: 'JetBrains Mono', monospace;
    font-weight: 600;
    font-size: 1rem;
}

.terminal-input-form input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--terminal-text);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.95rem;
    outline: none;
}

.terminal-input-form input::placeholder {
    color: rgba(230, 230, 230, 0.3);
}

.btn-send {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    border: none;
    background: var(--accent);
    color: #fff;
    cursor: pointer;
    display: grid;
    place-items: center;
    transition: all 0.2s;
}

.btn-send:hover {
    background: var(--accent-hover);
}

.context-menu {
    position: fixed;
    z-index: 100;
    background: var(--surface-strong);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 6px;
    box-shadow: var(--shadow);
    min-width: 180px;
}

.context-menu.hidden {
    display: none;
}

.context-item {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 10px 14px;
    border: none;
    background: transparent;
    color: var(--ink);
    font-size: 0.9rem;
    font-family: inherit;
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.15s;
    text-align: left;
}

.context-item:hover {
    background: var(--border);
}

.toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    padding: 14px 24px;
    background: var(--surface-strong);
    border: 1px solid var(--border);
    border-radius: 12px;
    font-size: 0.9rem;
    color: var(--ink);
    box-shadow: var(--shadow);
    z-index: 200;
    animation: slideUp 0.3s ease;
}

.toast.hidden {
    display: none;
}

.toast.success {
    border-color: var(--success);
    color: var(--success);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translate(-50%, 20px);
    }
    to {
        opacity: 1;
        transform: translate(-50%, 0);
    }
}

[data-animate] {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeIn 0.5s ease forwards;
}

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

@media (max-width: 900px) {
    .terminal-layout {
        flex-direction: column;
    }

    .file-browser {
        width: 100%;
        max-height: 200px;
    }

    .file-browser.collapsed {
        width: 100%;
        max-height: 48px;
    }

    .form-row {
        flex-direction: column;
    }

    .form-group-small {
        flex: 1;
    }
}

@media (max-width: 600px) {
    .connect-card {
        padding: 24px;
    }

    .connect-header {
        flex-direction: column;
        text-align: center;
    }

    .topbar-inner {
        padding: 12px 0;
    }
}