/* ─── Design Tokens ─────────────────────────────────────────────────────── */

:root {
    --color-bg:             #080b14;
    --color-surface:        #0d1117;
    --color-surface-raised: #161b27;
    --color-border:         rgba(255, 255, 255, 0.08);

    --color-accent-1:       #0066ff;
    --color-accent-2:       #00d4ff;
    --gradient-accent:      linear-gradient(135deg, #0066ff, #00d4ff);

    --color-text-primary:   #e8eaf0;
    --color-text-secondary: #7a8499;
    --color-text-muted:     #4a5568;

    --font-sans:            'Inter', system-ui, -apple-system, sans-serif;

    --radius-sm:            6px;
    --radius-md:            12px;
    --radius-lg:            20px;

    --shadow-glow:          0 0 40px rgba(0, 102, 255, 0.15);
    --shadow-card:          0 4px 24px rgba(0, 0, 0, 0.4);

    --nav-height:           64px;
}

/* ─── Base Reset ─────────────────────────────────────────────────────────── */

*, *::before, *::after {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    background-color: var(--color-bg);
    color: var(--color-text-primary);
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    margin: 0;
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.2;
    color: var(--color-text-primary);
}

h1 { font-size: clamp(2.5rem, 5vw, 4.5rem); }
h2 { font-size: clamp(1.75rem, 3vw, 2.5rem); font-weight: 600; }
h3 { font-size: 1.25rem; font-weight: 600; }

p {
    margin: 0;
    color: var(--color-text-secondary);
}

a {
    color: var(--color-accent-2);
    text-decoration: none;
}

a:hover {
    color: #fff;
}

/* ─── Buttons ────────────────────────────────────────────────────────────── */

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.7rem 1.6rem;
    background: var(--gradient-accent);
    color: #fff;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: opacity 0.2s, transform 0.15s;
    text-decoration: none;
}

.btn-primary:hover {
    opacity: 0.88;
    transform: translateY(-1px);
    color: #fff;
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.7rem 1.6rem;
    background: transparent;
    color: var(--color-accent-2);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    font-weight: 600;
    border: 1px solid rgba(0, 102, 255, 0.45);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s, transform 0.15s;
    text-decoration: none;
}

.btn-outline:hover {
    border-color: var(--color-accent-2);
    background: rgba(0, 212, 255, 0.06);
    transform: translateY(-1px);
    color: var(--color-accent-2);
}

/* ─── Focus styles ───────────────────────────────────────────────────────── */

:focus-visible {
    outline: 2px solid var(--color-accent-2);
    outline-offset: 3px;
    border-radius: 2px;
}

h1:focus { outline: none; }

/* ─── Utility ────────────────────────────────────────────────────────────── */

.text-secondary { color: var(--color-text-secondary); font-size: 0.9rem; }
.text-muted     { color: var(--color-text-muted); font-size: 0.85rem; }

.accent {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ─── Blazor error UI ────────────────────────────────────────────────────── */

#blazor-error-ui {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 0.75rem 1.25rem;
    background: #1a0a0a;
    border-top: 1px solid rgba(255, 80, 80, 0.3);
    color: #ffb3b3;
    font-size: 0.875rem;
}

#blazor-error-ui .reload {
    color: var(--color-accent-2);
    margin-left: 0.5rem;
    font-weight: 600;
}

#blazor-error-ui .dismiss {
    cursor: pointer;
    float: right;
    opacity: 0.6;
}

/* ─── Form validation ────────────────────────────────────────────────────── */

.valid.modified:not([type=checkbox]) { outline: 1px solid var(--color-accent-2); }
.invalid                             { outline: 1px solid #ff5252; }
.validation-message                  { color: #ff5252; font-size: 0.85rem; }

.blazor-error-boundary {
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
    background: #b32121;
    border-radius: var(--radius-sm);
}

.blazor-error-boundary::after {
    content: "An error has occurred.";
}