@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=DM+Sans:wght@300;400;500&display=swap');

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* ── PAGE ── */
body {
    font-family: 'DM Sans', system-ui, sans-serif;
    min-height: 100vh;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    background: var(--fondo);
    padding: 32px 16px;
    -webkit-text-size-adjust: 100%;
}

/* ── VARIABLES ── */
:root {
    --verde: #1a4731;
    --verde-osc: #0f2b1d;
    --verde-med: #22593e;
    --verde-claro: #e6eeea;
    --verde-hover: #1f5439;
    --blanco: #ffffff;
    --fondo: #f0f4f2;
    --borde: #e0e0e0;
    --gris: #666;
    --negro: #1a1a1a;
    --azul: #1d4ed8;
    --azul-claro: #eff6ff;
    --amber: #ba7517;
    --amber-claro: #fdf3e0;
}

/* ── CARD ── */
.form-card {
    width: 100%;
    max-width: 640px;
    background: var(--blanco);
    border-radius: 20px;
    border: 1px solid var(--borde);
    padding: 44px 48px;
    box-shadow: 0 4px 32px rgba(15, 43, 29, 0.09), 0 1px 4px rgba(0, 0, 0, 0.04);
    animation: fadeUp .5s cubic-bezier(.22, 1, .36, 1) both;
}

@keyframes fadeUp {
    from { transform: translateY(24px); opacity: 0; }
    to   { transform: translateY(0);    opacity: 1; }
}

/* ── LOGO SENA ── */
.sena-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
}

.sena-logo__img {
    height: 48px;
    width: auto;
    object-fit: contain;
    display: block;
}

.sena-logo__sigla {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 32px;
    font-weight: 800;
    color: var(--verde);
    letter-spacing: .04em;
    line-height: 1;
}

.sena-logo__separador {
    width: 2px;
    height: 36px;
    background: var(--borde);
    border-radius: 2px;
    flex-shrink: 0;
}

.sena-logo__nombre {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 11px;
    font-weight: 600;
    color: var(--gris);
    line-height: 1.5;
    text-transform: uppercase;
    letter-spacing: .04em;
}

/* ── HEADER ── */
.form-title {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 28px;
    font-weight: 800;
    color: var(--negro);
    margin-bottom: 6px;
}

.form-subtitle {
    font-size: 14px;
    color: var(--gris);
    margin-bottom: 30px;
}

/* ── SECTION LABEL ── */
.section-label {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--verde-osc);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.section-label::before {
    content: '';
    display: inline-block;
    width: 3px;
    height: 14px;
    background: var(--verde);
    border-radius: 2px;
    flex-shrink: 0;
}

/* ── ROLE BUTTONS ── */
.roles {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.role-btn {
    flex: 1 1 90px;
    min-width: 80px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 14px 10px;
    border: 2px solid var(--borde);
    border-radius: 12px;
    background: var(--verde-claro);
    cursor: pointer;
    transition: border-color .2s, background .2s, transform .18s, box-shadow .2s;
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 12px;
    font-weight: 600;
    color: var(--gris);
    touch-action: manipulation;
}

.role-btn .role-icon {
    font-size: 22px;
    line-height: 1;
}

.role-btn:hover {
    border-color: var(--verde-med);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(26, 71, 49, 0.15);
    color: var(--verde-osc);
}

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

.role-btn.selected {
    border-color: var(--verde);
    background: var(--verde-claro);
    color: var(--verde-osc);
    box-shadow: 0 0 0 3px rgba(26, 71, 49, 0.15);
}

/* ── FORM GRID ── */
.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px 20px;
    margin-bottom: 24px;
}

.span-2 {
    grid-column: span 2;
}

/* ── FIELD ── */
.field {
    display: flex;
    flex-direction: column;
    gap: 7px;
    min-width: 0;
}

.field label {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--verde-osc);
    display: flex;
    align-items: center;
    gap: 7px;
}

.field label::before {
    content: '';
    display: inline-block;
    width: 3px;
    height: 12px;
    background: var(--verde);
    border-radius: 2px;
    flex-shrink: 0;
}

/* ── INPUT WRAP ── */
.input-wrap {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: 13px;
    font-size: 15px;
    color: var(--gris);
    pointer-events: none;
    transition: color .2s;
    display: flex;
    align-items: center;
    z-index: 1;
}

.input-wrap input,
.input-wrap select {
    width: 100%;
    padding: 11px 13px 11px 38px;
    border: 1.5px solid var(--borde);
    border-radius: 10px;
    font-family: 'DM Sans', sans-serif;
    font-size: 16px;
    color: var(--negro);
    background: var(--fondo);
    outline: none;
    transition: border-color .2s, box-shadow .2s, background .2s;
    appearance: none;
    -webkit-appearance: none;
    min-width: 0;
}

.input-wrap select { cursor: pointer; }

.input-wrap input::placeholder { color: #b0bdb0; }

.input-wrap input:focus,
.input-wrap select:focus {
    border-color: var(--verde);
    box-shadow: 0 0 0 3px rgba(26, 71, 49, 0.12);
    background: var(--blanco);
}

.input-wrap:focus-within .input-icon { color: var(--verde-med); }

.input-wrap input:disabled {
    background: var(--fondo);
    color: var(--gris);
    cursor: not-allowed;
    opacity: 0.7;
}

.select-arrow {
    position: absolute;
    right: 13px;
    font-size: 11px;
    color: var(--gris);
    pointer-events: none;
    z-index: 1;
}

/* ── PASSWORD STRENGTH ── */
.strength-bar {
    height: 3px;
    border-radius: 3px;
    background: var(--borde);
    margin-top: 6px;
    overflow: hidden;
}

.strength-fill {
    height: 100%;
    width: 0%;
    border-radius: 3px;
    background: var(--verde);
    transition: width .4s, background .4s;
}

/* ── SUBMIT ── */
.submit-btn {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, var(--verde-med) 0%, var(--verde) 60%, var(--verde-hover) 100%);
    color: var(--blanco);
    border: none;
    border-radius: 12px;
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: transform .2s, box-shadow .2s, filter .2s;
    box-shadow: 0 4px 18px rgba(26, 71, 49, 0.35);
    letter-spacing: .01em;
    position: relative;
    overflow: hidden;
    min-height: 50px;
    touch-action: manipulation;
}

.submit-btn::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.12) 0%, transparent 100%);
    pointer-events: none;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(26, 71, 49, 0.40);
    filter: brightness(1.06);
}

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

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

/* ── LOGIN LINK ── */
.login-link {
    text-align: center;
    margin-top: 18px;
    font-size: 13.5px;
    color: var(--gris);
}

.login-link a {
    color: var(--verde-med);
    font-weight: 600;
    text-decoration: none;
}

.login-link a:hover { text-decoration: underline; }

/* ── BLOQUE DE ERRORES ── */
.alert-errores {
    background: #fff0f0;
    border: 1.5px solid #e53935;
    border-left: 5px solid #e53935;
    border-radius: 10px;
    padding: 14px 18px;
    margin-bottom: 24px;
}

.alert-errores__titulo {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 13px;
    font-weight: 700;
    color: #c62828;
    margin-bottom: 8px;
}

.alert-errores__lista {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.alert-errores__lista li {
    font-size: 13px;
    color: #b71c1c;
    padding-left: 14px;
    position: relative;
}

.alert-errores__lista li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: #e53935;
}

/* ── ALERTS ── */
.alert {
    padding: 12px 16px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 20px;
}

.alert--success {
    background: var(--verde-claro);
    color: var(--verde-osc);
    border: 1px solid var(--verde);
}

.alert--error {
    background: #fdecea;
    color: #b71c1c;
    border: 1px solid #f5c6c6;
}

/* ── FIELD ERRORS ── */
.field-error {
    font-size: 12px;
    color: #c0392b;
    margin-top: 4px;
}

/* ── MENSAJE WARNING ── */
.mensaje-warning {
    font-size: 13px;
    font-weight: 600;
    color: #b71c1c;
    background: #fff0f0;
    border: 1px solid #e53935;
    border-radius: 8px;
    padding: 10px 14px;
    margin-top: 8px;
}

/* ════════════════════════════════════════════
   RESPONSIVE — de mayor a menor
   ════════════════════════════════════════════ */

@media (max-width: 900px) {
    .form-card {
        padding: 40px 40px;
    }
}

@media (max-width: 720px) {
    body {
        padding: 24px 16px;
        align-items: flex-start;
    }

    .form-card {
        padding: 36px 32px;
        border-radius: 18px;
    }

    .form-title { font-size: 24px; }

    .form-grid {
        grid-template-columns: 1fr 1fr;
        gap: 14px 16px;
    }
}

@media (max-width: 600px) {
    body {
        padding: 16px 12px 32px;
    }

    .form-card {
        padding: 28px 20px;
        border-radius: 16px;
        box-shadow: 0 2px 16px rgba(15, 43, 29, 0.09);
    }

    .sena-logo__img { height: 40px; }

    .form-title    { font-size: 22px; }
    .form-subtitle { font-size: 13px; margin-bottom: 24px; }

    .form-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .span-2 { grid-column: span 1; }

    .roles { gap: 8px; }

    .role-btn {
        flex: 1 1 70px;
        min-width: 70px;
        padding: 11px 8px;
        font-size: 11px;
        border-radius: 10px;
    }

    .role-btn .role-icon { font-size: 18px; }

    .submit-btn {
        font-size: 14px;
        padding: 14px;
    }

    .login-link { font-size: 13px; }
}

@media (max-width: 400px) {
    body { padding: 0; }

    .form-card {
        border-radius: 0;
        min-height: 100vh;
        box-shadow: none;
        border: none;
        padding: 24px 16px 32px;
    }

    .form-title { font-size: 20px; }

    .sena-logo { margin-bottom: 18px; }
    .sena-logo__img { height: 36px; }

    .roles {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 8px;
    }

    .role-btn { flex: unset; min-width: unset; }

    .input-wrap input,
    .input-wrap select {
        font-size: 16px;
        padding: 12px 13px 12px 38px;
    }
}