:root {
    color-scheme: light;

    /* Base */
    --bg: #ffffff;
    --bg-elev-1: #f6f8fa;
    --bg-elev-2: #eef2f6;
    --surface: #ffffff;
    --text: #0b1220;
    --text-muted: #4b5563;
    --border: #d0d7de;

    /* Brand & states */
    --accent: #2ea6ff;
    --accent-hover: #1990ea;
    --accent-contrast: #001b2b;

    --success: #2ecc71;
    --warning: #f4b400;
    --danger: #ff5c5c;

    --warning-surface: color-mix(in srgb, var(--warning) 20%, white);
    --warning-border: color-mix(in srgb, var(--warning) 45%, white);
    --warning-text: color-mix(in srgb, var(--warning) 55%, black);
    --warning-strong: color-mix(in srgb, var(--warning) 70%, black);
    --danger-surface: color-mix(in srgb, var(--danger) 18%, white);
    --danger-border: color-mix(in srgb, var(--danger) 45%, white);
    --danger-text: color-mix(in srgb, var(--danger) 65%, black);
    --danger-strong: color-mix(in srgb, var(--danger) 75%, black);

    /* Components */
    --chip-bg: color-mix(in srgb, var(--accent) 12%, var(--bg-elev-1));
    --kbd-bg: var(--bg-elev-2);
    --input-bg: #ffffff;
    --input-text: var(--text);
    --focus-ring: #1990ea;

    /* Legacy variable bridge */
    --color-background: var(--bg);
    --color-surface: var(--surface);
    --color-surface-muted: var(--bg-elev-1);
    --color-surface-soft: var(--bg-elev-2);
    --color-border: var(--border);
    --color-border-subtle: color-mix(in srgb, var(--border) 45%, transparent);
    --color-border-strong: color-mix(in srgb, var(--border) 80%, black);
    --color-text-primary: var(--text);
    --color-text-strong: var(--text);
    --color-text-secondary: var(--text-muted);
    --color-text-tertiary: color-mix(in srgb, var(--text-muted) 75%, var(--text));
    --color-progress-line: var(--border);
    --color-step-inactive-bg: var(--bg-elev-2);
    --color-toggle-bg: var(--bg-elev-1);
    --color-toggle-border: var(--border);
    --color-toggle-text: var(--text);
    --color-toggle-hover: var(--bg-elev-2);
    --capability-bar-bg: color-mix(in srgb, var(--accent) 8%, var(--bg-elev-1));
    --capability-bar-border: color-mix(in srgb, var(--accent) 30%, var(--border));
    --capability-chip-bg: color-mix(in srgb, var(--accent) 14%, var(--bg-elev-1));
    --capability-chip-border: color-mix(in srgb, var(--accent) 55%, var(--border));
    --capability-chip-text: color-mix(in srgb, var(--accent) 70%, var(--text));
    --capability-chip-available-bg: color-mix(in srgb, var(--success) 22%, white);
    --capability-chip-available-border: color-mix(in srgb, var(--success) 45%, var(--border));
    --capability-chip-available-text: color-mix(in srgb, var(--success) 65%, var(--text));
    --capability-chip-partial-bg: color-mix(in srgb, var(--warning) 30%, white);
    --capability-chip-partial-border: color-mix(in srgb, var(--warning) 55%, var(--border));
    --capability-chip-partial-text: color-mix(in srgb, var(--warning) 65%, var(--text));
    --capability-chip-unavailable-bg: color-mix(in srgb, var(--danger) 18%, white);
    --capability-chip-unavailable-border: color-mix(in srgb, var(--danger) 55%, var(--border));
    --capability-chip-unavailable-text: color-mix(in srgb, var(--danger) 65%, var(--text));
    --capability-copy-feedback: color-mix(in srgb, var(--accent) 70%, var(--text));
    --capability-note-bg: color-mix(in srgb, var(--danger) 12%, var(--bg-elev-2));
    --capability-note-border: color-mix(in srgb, var(--danger) 30%, var(--border));
    --capability-note-text: color-mix(in srgb, var(--danger) 70%, black);
    --capability-note-dismiss-border: color-mix(in srgb, var(--danger) 55%, var(--border));
    --capability-note-dismiss-hover: color-mix(in srgb, var(--danger) 15%, transparent);
    --capability-note-focus-ring: color-mix(in srgb, var(--danger) 45%, var(--focus-ring));
}

html,
body {
    background: var(--bg);
    color: var(--text);
}

a {
    color: var(--accent);
    text-decoration-color: color-mix(in srgb, var(--accent) 70%, transparent);
}

a:hover,
a:focus-visible {
    color: var(--accent-hover);
}

hr,
.divider {
    border-color: var(--border);
}

.card,
.panel,
.wizard-step {
    background: var(--surface);
    border: 1px solid var(--border);
}

.btn {
    --btn-bg: var(--accent);
    --btn-fg: var(--accent-contrast);
    --btn-border: transparent;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    min-height: 2.75rem;
    border-radius: 0.75rem;
    border: 1px solid var(--btn-border);
    background: var(--btn-bg);
    color: var(--btn-fg);
    font-weight: 600;
    font-size: 1rem;
    line-height: 1.1;
    letter-spacing: 0.01em;
    text-decoration: none;
    cursor: pointer;
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease,
        box-shadow 0.2s ease, transform 0.2s ease;
    box-shadow: 0 8px 20px rgba(15, 23, 42, 0.12);
}

.btn:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 12px 28px rgba(15, 23, 42, 0.16);
}

.btn:active:not(:disabled) {
    transform: translateY(0);
    box-shadow: 0 6px 16px rgba(15, 23, 42, 0.18);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    box-shadow: none;
}

.btn-primary {
    --btn-bg: var(--brand-green-contrast);
    --btn-fg: #fff;
    --btn-border: transparent;
    box-shadow: 0 10px 24px rgba(var(--brand-green-contrast-rgb), 0.24);
}

.btn-primary:hover:not(:disabled) {
    --btn-bg: var(--brand-green-contrast-hover);
}

.btn-primary:active:not(:disabled) {
    --btn-bg: var(--brand-green-contrast-active);
}

.btn-secondary {
    --btn-bg: var(--color-surface);
    --btn-fg: var(--color-text-secondary);
    --btn-border: var(--color-border);
    box-shadow: none;
}

.btn-secondary:hover:not(:disabled) {
    --btn-bg: var(--color-surface-muted);
    --btn-border: color-mix(in srgb, var(--color-text-secondary) 35%, var(--color-border));
    --btn-fg: var(--color-text-primary);
}

.btn-copy {
    --btn-bg: var(--color-surface-muted);
    --btn-fg: var(--color-text-primary);
    --btn-border: var(--color-border);
    font-size: 0.95rem;
    padding: 0.65rem 1.25rem;
    box-shadow: none;
}

.btn-copy:hover:not(:disabled) {
    --btn-bg: color-mix(in srgb, var(--color-text-primary) 12%, var(--color-surface-muted));
    --btn-border: color-mix(in srgb, var(--color-text-primary) 35%, var(--color-border));
}

.btn-small {
    font-size: 0.9rem;
    padding: 0.55rem 1rem;
    min-height: 0;
    box-shadow: none;
}

.chip {
    background: var(--chip-bg);
    color: var(--text);
    border: 1px solid var(--border);
}

input,
select,
textarea {
    background: var(--input-bg);
    color: var(--input-text);
    border: 1px solid var(--border);
}

pre,
code,
.log-viewer {
    background: var(--bg-elev-2);
    color: var(--text);
    border: 1px solid var(--border);
}

:focus-visible {
    outline: 2px solid var(--focus-ring);
    outline-offset: 2px;
}

* {
    scrollbar-color: var(--border) var(--bg-elev-1);
    scrollbar-width: thin;
}

header {
    position: relative;
}

@media (prefers-reduced-motion: reduce) {
    .btn {
        transition: none;
    }
}

@media (prefers-contrast: more) {
    :root {
        --border: color-mix(in srgb, var(--border) 85%, #000000);
    }
}

:root[data-density="compact"] .wizard-container {
    padding: 36px;
}