/* Common design tokens */
:root {
    --color-surface: #ffffff;
    --color-success-background: #dcfae6;
    --color-success: #067647;
    --color-danger: #b42318;

    --radius-card: 16px;
    --radius-control: 8px;
}

/* Purple theme */
.theme-purple {
    --color-background: #f7f5fa;
    --color-border: #e1d7eb;
    --color-muted: #7d738c;
    --color-primary: #644691;
    --color-primary-hover: #553c73;
    --color-primary-light: #f0e6ff;
    --color-surface-muted: #f9f8fc;
    --color-text: #281e32;

    --shadow: 0 18px 50px rgba(30, 20, 40, 0.08);
    --focus: rgba(100, 80, 145, 0.2);
}

/* Blue theme */
.theme-blue {
    --color-background: #f5f5fa;
    --color-border: #d7d7eb;
    --color-muted: #73738c;
    --color-primary: #464691;
    --color-primary-hover: #3c3c73;
    --color-primary-light: #e6e6ff;
    --color-surface-muted: #f8f8fc;
    --color-text: #1e1e32;

    --shadow: 0 18px 50px rgba(20, 20, 40, 0.08);
    --focus: rgba(80, 80, 145, 0.2);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background:
            radial-gradient(circle at top left, rgba(31, 79, 143, 0.08), transparent 32rem),
            var(--color-background);
    color: var(--color-text);
    line-height: 1.6;
}

.page {
    width: min(100% - 2rem, 760px);
    margin: 0 auto;
    padding: 4rem 0;
}

.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 18px;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.card-header {
    padding: 2rem 2rem 1rem;
    background: var(--color-primary);
    color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
}

h1 {
    margin: 0;
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    line-height: 1.2;
}

.lead-dark {
    margin: 1rem 0 0;
    color: var(--color-muted);
}

.lead-bright {
    margin: 1rem 0 0;
    color: var(--color-surface-muted);
}

.card-body {
    padding: 2rem;
}

.form-group {
    margin-bottom: 1.4rem;
}

label {
    display: block;
    margin-bottom: 0.45rem;
    font-weight: 650;
}

input {
    width: 100%;
    padding: 0.85rem 0.95rem;
    border: 1px solid var(--color-border);
    border-radius: 10px;
    background: var(--color-surface);
    color: var(--color-text);
    font: inherit;
}

/* Compact inputs for small numeric values */
input.input-numeric {
    width: 140px;
    max-width: 100%;
}

input:focus {
    outline: 3px solid var(--focus);
    border-color: var(--color-primary);
}

.help-text {
    margin: 0.65rem 0 0;
    color: var(--color-muted);
    font-size: 0.94rem;
}

.error {
    margin-top: 0.45rem;
    color: var(--color-danger);
    font-size: 0.94rem;
    font-weight: 600;
}

button,
.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 2.75rem;
    padding: 0.75rem 1.2rem;
    border: 0;
    border-radius: 10px;
    background: var(--color-primary);
    color: var(--color-surface);
    font: inherit;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
}

button:hover,
.button:hover {
    background: var(--color-primary-hover);
}

button-secondary,
.button-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 2.75rem;
    padding: 0.75rem 1.2rem;
    border: 1px solid var(--color-primary);
    border-radius: 10px;
    background: var(--color-surface);
    color: var(--color-primary);
    font: inherit;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
}

button-secondary:hover,
.button-secondary:hover {
    background: var(--color-primary-light);
}

.security-note {
    margin-top: 1.5rem;
    padding: 1rem;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    background: var(--color-surface-muted);
    color: var(--color-muted);
    font-size: 0.95rem;
}

.security-note strong {
    color: var(--color-text);
}

.success-icon {
    width: 3rem;
    height: 3rem;
    margin-bottom: 1rem;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--color-success-background);
    color: var(--color-success);
    font-weight: 900;
    font-size: 1.4rem;
}

.actions-horizontal {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

.actions-vertical {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

.actions-vertical .button {
    width: 100%;
    box-sizing: border-box;
}

a {
    color: var(--color-primary);
}

@media (max-width: 560px) {
    .page {
        padding: 1.5rem 0;
    }

    .card-header,
    .card-body {
        padding: 1.25rem;
    }
}