:root {
    /* Identidad institucional JETC */
    --color-primary: #003971;
    --color-primary-dark: #002B55;
    --color-primary-soft: #E6F0FA;

    --color-accent: #21AA9E;
    --color-accent-dark: #188F85;
    --color-accent-soft: #E7F8F6;

    --color-warning: #FFCC02;
    --color-warning-dark: #D6A800;
    --color-warning-soft: #FFF6CC;

    --color-danger: #CC1326;
    --color-danger-dark: #A30F1F;
    --color-danger-soft: #FDE7EA;

    --color-success: #21AA9E;
    --color-success-soft: #E7F8F6;

    --color-bg: #F4F8FC;
    --color-surface: #FFFFFF;
    --color-surface-soft: #F8FBFE;
    --color-border: #D9E2EC;
    --color-border-strong: #B8C7D9;
    --color-text: #1F2937;
    --color-muted: #64748B;
    --color-muted-light: #94A3B8;

    --shadow-soft: 0 12px 32px rgba(0, 57, 113, 0.08);
    --shadow-card: 0 16px 42px rgba(15, 23, 42, 0.08);
    --shadow-focus: 0 0 0 4px rgba(33, 170, 158, 0.16);

    --radius-lg: 18px;
    --radius-md: 12px;
    --radius-sm: 8px;

    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.5rem;
    --space-6: 2rem;
    --space-7: 2.5rem;

    --font-base: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
    box-sizing: border-box;
}

html {
    min-height: 100%;
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
    margin: 0;
    font-family: var(--font-base);
    background: var(--color-bg);
    color: var(--color-text);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

a {
    color: inherit;
}

button,
input,
select,
textarea {
    font: inherit;
}

button {
    appearance: none;
}

img {
    max-width: 100%;
    height: auto;
}

::selection {
    background: rgba(255, 204, 2, 0.45);
    color: var(--color-primary-dark);
}

:focus-visible {
    outline: 0;
    box-shadow: var(--shadow-focus);
}