:root {
    --bg-void: #0a0b0f;
    --bg-panel: #11131a;
    --bg-panel-hover: #161925;
    --grid-line: rgba(251, 176, 59, 0.06);
    --amber: #ffb000;
    --amber-dim: #c78a00;
    --amber-glow: rgba(255, 176, 0, 0.25);
    --cyan: #00e5ff;
    --cyan-dim: #00a8bb;
    --cyan-glow: rgba(0, 229, 255, 0.2);
    --danger: #ff3b30;
    --danger-glow: rgba(255, 59, 48, 0.25);
    --success: #00d084;
    --text: #e8e6e1;
    --text-dim: #8a8b8f;
    --text-code: #d4c5b0;
    --border: rgba(251, 176, 59, 0.25);
    --border-strong: rgba(251, 176, 59, 0.55);
    --radius: 4px;
    --font-display: 'Orbitron', sans-serif;
    --font-mono: 'Space Mono', monospace;
    --shadow-amber: 0 0 20px var(--amber-glow);
    --shadow-cyan: 0 0 20px var(--cyan-glow);
}

* {
    box-sizing: border-box;
}

html {
    background: var(--bg-void);
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 14px;
    line-height: 1.5;
}

body {
    margin: 0;
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

/* Background grid */
.grid-bg {
    position: fixed;
    inset: 0;
    pointer-events: none;
    background-image:
        linear-gradient(var(--grid-line) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
    background-size: 40px 40px;
    mask-image: radial-gradient(ellipse at center, black 0%, transparent 80%);
    z-index: 0;
}

/* CRT scanline + vignette overlay */
.crt-overlay {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 1000;
    background:
        radial-gradient(circle at center, transparent 40%, rgba(0,0,0,0.55) 100%),
        repeating-linear-gradient(
            0deg,
            rgba(0, 0, 0, 0.12) 0px,
            rgba(0, 0, 0, 0.12) 1px,
            transparent 1px,
            transparent 3px
        );
    mix-blend-mode: multiply;
    opacity: 0.55;
}

/* Header */
.site-header {
    position: relative;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border);
    background: linear-gradient(180deg, rgba(17,19,26,0.95) 0%, rgba(17,19,26,0.75) 100%);
    backdrop-filter: blur(8px);
}

.brand {
    display: flex;
    align-items: baseline;
    gap: 0.75rem;
}

.brand-mark {
    font-size: 1.8rem;
    color: var(--amber);
    text-shadow: 0 0 12px var(--amber-glow);
    animation: pulse 3s ease-in-out infinite;
}

.brand-title {
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 900;
    letter-spacing: 0.12em;
    margin: 0;
    color: var(--amber);
    text-shadow: 0 0 16px var(--amber-glow);
}

.brand-sub {
    font-size: 0.75rem;
    color: var(--text-dim);
    letter-spacing: 0.2em;
    border-left: 1px solid var(--border);
    padding-left: 0.75rem;
}

.status-bar {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.35rem 0.8rem;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--bg-panel);
    font-size: 0.75rem;
    letter-spacing: 0.08em;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--amber-dim);
    box-shadow: 0 0 8px var(--amber-dim);
}

.status-pill.online .status-dot {
    background: var(--success);
    box-shadow: 0 0 10px var(--success);
}

.status-pill.error .status-dot {
    background: var(--danger);
    box-shadow: 0 0 10px var(--danger);
}

.version {
    color: var(--text-dim);
    font-size: 0.75rem;
}

/* Main layout */
.control-deck {
    position: relative;
    z-index: 10;
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 1.5rem;
}

.panel {
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    position: relative;
    overflow: hidden;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.panel::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--amber), transparent);
    opacity: 0.4;
}

.panel:hover {
    border-color: var(--border-strong);
    box-shadow: var(--shadow-amber);
}

.panel-title {
    font-family: var(--font-display);
    font-size: 0.95rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin: 0 0 1.25rem 0;
    color: var(--amber);
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.section-icon {
    color: var(--cyan);
    text-shadow: 0 0 10px var(--cyan-glow);
}

.panel-body {
    color: var(--text-dim);
    margin: 0 0 1.25rem 0;
    max-width: 60ch;
}

.panel-body.small {
    font-size: 0.85rem;
}

/* Grid placement */
.intro-panel {
    grid-column: span 8;
}

.sync-panel {
    grid-column: span 4;
}

.config-panel {
    grid-column: span 4;
}

.yaml-panel {
    grid-column: span 12;
}

@media (max-width: 1100px) {
    .intro-panel, .sync-panel, .config-panel {
        grid-column: span 6;
    }
}

@media (max-width: 720px) {
    .control-deck {
        grid-template-columns: 1fr;
        padding: 1rem;
    }
    .intro-panel, .sync-panel, .config-panel, .yaml-panel {
        grid-column: span 1;
    }
    .site-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
}

/* Buttons */
.action-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.btn {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    padding: 0.7rem 1.2rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-panel-hover);
    color: var(--text);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.2s ease;
    text-transform: uppercase;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-amber);
    border-color: var(--amber);
}

.btn:active {
    transform: translateY(0);
}

.btn-primary {
    background: rgba(255, 176, 0, 0.12);
    border-color: var(--amber);
    color: var(--amber);
}

.btn-primary:hover {
    background: rgba(255, 176, 0, 0.22);
}

.btn-secondary {
    background: rgba(0, 229, 255, 0.08);
    border-color: var(--cyan-dim);
    color: var(--cyan);
}

.btn-secondary:hover {
    background: rgba(0, 229, 255, 0.16);
    border-color: var(--cyan);
    box-shadow: var(--shadow-cyan);
}

.btn-ghost {
    background: transparent;
    border-color: var(--text-dim);
    color: var(--text-dim);
}

.btn-ghost:hover {
    color: var(--text);
    border-color: var(--text);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

.btn-icon {
    font-size: 1.1em;
}

/* Tabs */
.script-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--border);
    padding-bottom: 0.5rem;
}

.tab-btn {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    padding: 0.4rem 0.7rem;
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-dim);
    cursor: pointer;
    transition: all 0.2s ease;
}

.tab-btn.active,
.tab-btn:hover {
    color: var(--amber);
    border-color: var(--border);
    background: var(--bg-panel-hover);
}

.tab-content {
    display: none;
}

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

.code-block {
    display: block;
    background: var(--bg-void);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.9rem 1rem;
    color: var(--text-code);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    overflow-x: auto;
    margin-bottom: 0.75rem;
    position: relative;
}

.copy-btn {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    padding: 0.4rem 0.8rem;
    background: var(--bg-panel-hover);
    border: 1px solid var(--border);
    color: var(--text-dim);
    cursor: pointer;
    border-radius: var(--radius);
    transition: all 0.2s ease;
}

.copy-btn:hover {
    border-color: var(--amber);
    color: var(--amber);
}

/* Forms */
.form-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}

.field-group {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.field-label {
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-dim);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.field-hint {
    font-size: 0.65rem;
    color: var(--text-dim);
    opacity: 0.7;
    text-transform: none;
    letter-spacing: 0;
}

.field-input {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    padding: 0.6rem 0.8rem;
    background: var(--bg-void);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    transition: all 0.2s ease;
}

.field-input:focus {
    outline: none;
    border-color: var(--amber);
    box-shadow: 0 0 0 3px var(--amber-glow);
}

.field-input::placeholder {
    color: rgba(138, 139, 143, 0.5);
}

select.field-input {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23ffb000' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.8rem center;
    padding-right: 2rem;
}

.field-input[type="password"],
.secret-field {
    color: var(--cyan);
    letter-spacing: 0.05em;
}

.toggle-secret {
    font-size: 0.65rem;
    color: var(--cyan-dim);
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.toggle-secret:hover {
    color: var(--cyan);
    text-shadow: 0 0 8px var(--cyan-glow);
}

/* YAML preview */
.yaml-preview {
    background: var(--bg-void);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem;
    margin: 0;
    overflow-x: auto;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    line-height: 1.6;
    color: var(--text-code);
    min-height: 200px;
}

.yaml-preview code {
    font-family: inherit;
}

.yaml-key { color: var(--amber); }
.yaml-value { color: var(--cyan); }
.yaml-comment { color: var(--text-dim); font-style: italic; }
.yaml-string { color: var(--success); }

/* Footer */
.site-footer {
    position: relative;
    z-index: 10;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.25rem 2rem;
    border-top: 1px solid var(--border);
    background: var(--bg-panel);
    color: var(--text-dim);
    font-size: 0.75rem;
}

.footer-right {
    margin-left: auto;
}

/* Toast */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 2000;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.9rem 1.25rem;
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-left: 3px solid var(--amber);
    border-radius: var(--radius);
    box-shadow: var(--shadow-amber);
    transform: translateY(120%);
    opacity: 0;
    transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

.toast.success {
    border-left-color: var(--success);
    box-shadow: 0 0 20px rgba(0, 208, 132, 0.2);
}

.toast.error {
    border-left-color: var(--danger);
    box-shadow: var(--shadow-danger);
}

.toast-icon {
    font-weight: 700;
    color: var(--amber);
}

/* Animations */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Loading state */
.loading {
    position: relative;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(10, 11, 15, 0.6);
    backdrop-filter: blur(2px);
}

.spinner {
    display: inline-block;
    width: 1rem;
    height: 1rem;
    border: 2px solid var(--border);
    border-top-color: var(--amber);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-void);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--amber-dim);
}